USER'S INFORMATION MANUAL - LennoxPROs.com · USER'S INFORMATION MANUAL LGH/LCH036, 048, ... N EVAPORATOR COIL CONDENSER FAN CONDENSER COIL COMPRESSOR ... 5- Place field‐provided

USER'S INFORMATIONMANUAL

LGH/LCH036, 048, 060, 072(3, 4, 5 & 6 Tons)

This book includes the following manuals:

UNIT INSTALLATION INSTRUCTIONS 507155-01

OWNER'S MANUAL 506372-01

AGENCY MANUAL 506373-01

IMC MANUAL 506215-01

ECONOMIZER INSTRUCTIONS 507030-01

IMC MODULE INSTRUCTIONS (LONTALK GATEWAY) 506217-01

IMC MODULE INSTRUCTIONS (LONTALK PRODIGY) 506693-01

WARRANTY W-022-L3

507155-01

��04/13

��

2013Litho U.S.A.

WARNINGImproper installation, adjustment, alteration, service or maintenance can cause property damage,personal injury or loss of life. Installation and service must be performed by a licensed professionalHVAC installer or equivalent, service agency, or thegas supplier

Table Of Contents

Dimensions Page 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Arrangements Page 3. . . . . . . . . . . . . . . . . . . . . . . . .

Shipping and Packing List Page 4. . . . . . . . . . . . . . . . . . . .

General Page 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Requirements Page 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unit Support Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duct Connection Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rigging Unit For Lifting Page 5. . . . . . . . . . . . . . . . . . . . . . .

Horizontal Air Discharge Page 6. . . . . . . . . . . . . . . . . . . . . .

Condensate Drains Page 6. . . . . . . . . . . . . . . . . . . . . . . . . .

Gas Piping Page 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Test Gas Piping Page 9. . . . . . . . . . . . . . . . . . . . .

INSTALLATIONINSTRUCTIONS

LGH/LCH036, 048,060 & 0723, 4, 5 and 6 Ton

GAS AND COOLING PACKAGED UNITS507155-014/2013Supersedes 507085-01

High Altitude Derate Page 9. . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Connections Page 9. . . . . . . . . . . . . . . . . . . . . . .

Blower Operation and Adjustments Page 12. . . . . . . . . . . .

Cooling Start-Up Page 28. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas Heat Start-Up Page 38. . . . . . . . . . . . . . . . . . . . . . . . . . .

Heating Operation and Adjustments Page 39. . . . . . . . . . . .

Electric Heat Start-Up Page 39. . . . . . . . . . . . . . . . . . . . . . . .

Ventilation Control Board Start-Up Page 40. . . . . . . . . . . . .

Hot Gas Reheat Startup Page 42. . . . . . . . . . . . . . . . . . . . . .

Service Page 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CAUTIONDanger of sharp metallic edges. Can cause injury.Take care when servicing unit to avoid accidentalcontact with sharp edges.

RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE

LG SHOWN

LLENOXN

LENOXN

LENOXN

Page 2

LGH/LCH036, 048, 060, 072

LGH/LCH036, 048, 060, & 072 DIMENSIONS in. - Gas heat section shown

45(1143)

END VIEW

1 (25)

47 (1192)BASE

38−

7/8

(987

) 03

6 th

ru 0

4846

−7/

8 (1

191)

060

thru

072

DD CC

BBAA

FF

EE

11(279)

16−1/4(413)

18(457)

20(508)

5 (102)

47 (1192)BASE

BOTTOMSUPPLY

AIROPENING

TOP VIEW (Base)

CENTEROF

GRAVITY

9−1/2(241)6−5/8

(168)

26−1/2(673)

5−5/8(143)

29(737)

7 (178) BOTTOMRETURN

AIROPENING

BOTTOMCONDENSATE OUTLET

25−3/4(654)

BOTTOM POWER ENTRY3 X 8 (76 X 203)

18−3/8(467)

19−1/2(495)

5−1/2(140)

FORKLIFT SLOTS(Front, Back and

Blower End)

HORIZONTALRETURN AIR

OPENING(Without Economizer)

HORIZONTALSUPPLY AIR

OPENING

2 (51)11

(279)

29(737)

20(508)

5−1/2(140)

BACK VIEW

CONDENSATEOUTLET

(EITHER SIDE)

3−1/2 (89)

83−1/4(2115)

85−1/4 (2165)BASE

26−1/2(673)

5−1/2(140)

GASINLET

FLUE/VENTOUTLET

LIFTING HOLES(For rigging)

SIDE VIEW

27(686)

15 (381)

ELECTRICALINLET

1 (25)35−

3/8

(899

) 03

6 th

ru 0

4843

−3/

8 (1

102)

060

thru

072

85−1/4 (2165)BASE

85−1/4 (2165)BASE

38−

7/8

(987

) 03

6 th

ru 0

4846

−7/

8 (1

191)

060

thru

072

Page 3

LGH/LCH036, 048, 060, 072

LGH036, 048, 060, & 072 PARTS ARRANGEMENT

LLENOXN

LENOXN

LENOXN

EVAPORATORCOIL

CONDENSERFAN

CONDENSERCOIL

COMPRESSOR

CONDENSATEDRAIN

FILTERS (4)

036, 048:16 X 20 X 2”060, 072: 20 X 20 X 2”

ECONOMIZER(OPTIONAL)

GAS VALVEBURNERS

COMBUSTIONAIR INDUCER

BLOWERMOTOR

(DIRECT DRIVE SHOWN)

TXV

UNITCONTROLLER

REHEAD COIL(OPTIONAL)

BLOWER COILGUARDS

(OPTIONAL)

LCH036, 048, 060, & 072 PARTS ARRANGEMENT

LLENOXN

LENOXN

LENOXN

ELECTRIC HEAT(Optional)

EVAPORATORCOIL

CONDENSERFAN

CONDENSERCOIL

COMPRESSOR

CONDENSATEDRAIN


BLOWER

BLOWERMOTOR

(BELT DRIVE SHOWN)

FILTERS (4)

036, 048:16 X 20 X 2”060, 072: 20 X 20 X 2”

TXV

UNITCONTROLLER

REHEAT COIL(OPTIONAL)

Page 4

LGH/LCH036, 048, 060, 072

Shipping and Packing List

Package 1 of 1 contains:

1- Assembled unit

Check unit for shipping damage. Receiving party should

contact last carrier immediately if shipping damage is found.

General

These instructions are intended as a general guide

and do not supersede local codes in any way.

Authorities having jurisdiction should be consulted

before installation.

The LGH units are available in three heating inputs. The

LCH cooling packaged rooftop unit is the same basic

design as the LGH unit except for the heating section.

Optional electric heat is available for LCH units. LGH and

LCH units have identical refrigerant circuits with

respective 3, 4, 5, and 6 ton cooling capacities.

Units come standard with a lightweight, all-aluminum

condenser coil. Units are also available with an optional

fin/tube condenser coil.

In addition to standard heating and cooling, hot gas

reheat units provide a dehumidifying mode of operation.

Refer to Reheat Operation section.

An optional factory-installed ventilation control board

(VCB) is available. Units equipped with a VCB allow the

installer to enter the design-specified supply air and

outdoor air CFM into the Unit Controller. See VCB

Start-Up section.

Availability of units and options varies by brand.

Requirements

See figure 1 for unit clearances.

WARNINGElectric shock hazard and danger ofexplosion. Can cause injury, death orproduct or property damage. Turn offgas and electrical power to unit beforeperforming any maintenance orservicing operations on the unit. Followlighting instructions attached to unitwhen putting unit back into operationand after service or maintenance.

IMPORTANTThe Clean Air Act of 1990 bans the intentional venting of refrigerant (CFC's and HCFC's) as of July 1,1992. Approved methods of recovery, recycling orreclaiming must be followed. Fines and/or incarceration may be levied for non-compliance.

NOTICERoof Damage!This system contains both refrigerant and oil.Some rubber roofing material may absorb oil,causing the rubber to swell. Bubbles in the rubberroofing material can cause leaks. Protect the roofsurface to avoid exposure to refrigerant and oilduring service and installation. Failure to followthis notice could result in damage to roof surface.

UNIT CLEARANCES

C

D

B

A

FIGURE 1

1Unit

Clearance

Ain.(mm)

Bin.(mm)

Cin.(mm)

Din.(mm)

TopClearance

ServiceClearance

48(1219)

36(914)

36(914)

36(914)

Unobstructed

Clearance toCombustibles

36(914)

1(25)

1(25)

1(25)

Unobstructed

Minimum Operation Clearance

36(914)

36(914)

36(914)

36(914)

Unobstructed

Note - Entire perimeter of unit base requires support when elevated above

mounting surface.

1 Service Clearance - Required for removal of serviceable parts.

Clearance to Combustibles - Required clearance to combustible material

(gas units).

Minimum Operation Clearance - Required clearance for proper unit operation.

Use of this unit as a construction heater or air conditioner

is not recommended during any phase of construction.

Very low return air temperatures, harmful vapors and

operation of the unit with clogged or misplaced filters will

damage the unit.

If this unit has been used for heating or cooling of

buildings or structures under construction, the following

conditions must be met or the warranty will be void:

� A room thermostat must control the unit. The use of

fixed jumpers that will provide continuous heating or

cooling is not allowed.

� A pre-filter must be installed at the entry to the return

air duct.

� The return air duct must be provided and sealed to

the unit.

� Return air temperature range between 55°F (13°C)

and 80°F (27°C) must be maintained.

Page 5

LGH/LCH036, 048, 060, 072

� Air filters must be replaced and pre-filters must be

removed upon construction completion.

� The input rate and temperature rise must be set per

the unit rating plate.

� The heat exchanger, components, duct system, air

filters and evaporator coil must be thoroughly

cleaned following final construction clean-up.

� The unit operating conditions (including airflow,

cooling operation, ignition, input rate, temperature

rise and venting) must be verified according to these

installation instructions.

Unit Support

In downflow discharge installations, install the unit on a

non-combustible surface only. Unit may be installed on

combustible surfaces when used in horizontal discharge

applications or in downflow discharge applications when

installed on an T1CURB / C1CURB / E1CURB roof

mounting frame.

NOTE - Securely fasten roof frame to roof per local codes.

A-Downflow Discharge Application

Roof Mounting with T1CURB / C1CURB / E1CURB

1- The roof mounting frame must be installed, flashed

and sealed in accordance with the instructions

provided with the frame.

2- The roof mounting frame should be square and level

to 1/16” per linear foot (5mm per linear meter) in any

direction.

3- Duct must be attached to the roof mounting frame

and not to the unit; supply and return plenums must

be installed before setting the unit.

Installer's Roof Mounting Frame

Many types of roof frames can be used to install the unit

depending upon different roof structures. Items to keep

in mind when using the building frame or supports are:

1- The base is fully enclosed and insulated, so an

enclosed frame is not required.

2- The frames or supports must be constructed with

non-combustible materials and should be square and

level to 1/16” per linear foot (5mm per linear meter)

in any direction.

3- Frame or supports must be high enough to prevent

any form of moisture from entering unit.

Recommended minimum frame height is 14”

(356mm).

4- Duct must be attached to the roof mounting frame

and not to the unit. Supply and return plenums must

be installed before setting the unit.

5- Units require support along all four sides of unit base.

Supports must be constructed of steel or suitably

treated wood materials.

NOTE-When installing a unit on a combustible surface for

downflow discharge applications, a T1CURB / C1CURB /

E1CURB roof mounting frame is required.

B-Horizontal Discharge Applications

1- Units which are equipped with an optional

economizer and installed in horizontal airflow

applications must use a horizontal conversion kit.

2- Specified installation clearances must be maintained

when installing units. Refer to figure 1.

3- Top of support slab should be approximately 4”

(102mm) above the finished grade and located so no

run-off water from higher ground can collect around

the unit.

4- Units require support along all four sides of unit base.

Supports must be constructed of steel or suitably

treated wood materials.

Duct Connection

All exterior ducts, joints and openings in roof or building

walls must be insulated and weather-proofed with

flashing and sealing compounds in accordance with

applicable codes. Any duct passing through an

unconditioned space must be insulated.

CAUTIONIn downflow applications, do not drill or punchholes in base of unit. Leaking in roof may occur ifunit base is punctured.

Rigging Unit For Lifting

Rig unit for lifting by attaching four cables to holes in unit

base rail. See figure 2.

1- Detach wooden base protection before rigging.

2- Remove all six base protection brackets before

setting unit.

3- Connect rigging to the unit base using both holes in

each corner.

4- All panels must be in place for rigging.

5- Place field‐provided H‐style pick in place just above

top edge of unit. Frame must be of adequate

strength and length. (H-style pick prevents damage

to unit.)

Page 6

LGH/LCH036, 048, 060, 072

LG

LC

FIGURE 2

IMPORTANT - ALLPANELS MUSTBE IN PLACE

FOR RIGGING.

LIFTING POINT SHOULDBE DIRECTLY ABOVECENTER OF GRAVITY

*Maximum weight with all availablefactory-installed accessories.

435

423

Unit*Weight

Lbs. Kg.

CAUTION - Donot walk on unit.

960

933

Horizontal Air Discharge

Unit is shipped with panels covering the horizontal supply

and return air openings. Remove horizontal covers and

place over downflow openings for horizontal air discharge.

See figure 3. Secure in place with sheet metal screws.

Units Equipped With An Optional Economizer

1- Remove the horizontal supply air cover and position

over the downflow supply air opening. Secure with

sheet metal screws.

2- Leave the horizontal return air cover in place.

3- Locate the separately ordered horizontal air

discharge kit. Place the kit panel over the downflow

return air opening.

4- Remove and retain the barometric relief dampers and

lower hood.

FIGURE 3

DOWNFLOWRETURN AIR

OPENING

UNIT SUPPLY AND RETURN AIR OPENINGS

DOWNFLOWSUPPLY AIR

OPENING


OPENING


OPENING

5- Install return air duct beneath outdoor air intake. See

figure 4. Install barometric relief damper in lower

hood and install in ductwork as shown in figure 4.

FIGURE 4

HORIZONTAL RETURN AIR DUCTWORKWITH ECONOMIZER


DUCT

INSTALL BAROMETRIC RELIEF DAMPERSAND HOOD IN RETURN AIR DUCT

UNITUNIT

Condensate Drains

Make drain connection to the drain coupling provided on

unit. Older model units have a 3/4” N.P.T. coupling and

newer model units have a 1” N.P.T. coupling.

Note - The drain pan is made with a glass reinforced

engineered plastic capable of withstanding typical joint

torque but can be damaged with excessive force. Tighten

pipe nipple hand tight and turn an additional quarter turn.

A trap must be installed between drain connection and an

open vent for proper condensate removal. See figure 5 or

6. It is sometimes acceptable to drain condensate onto

the roof or grade; however, a tee should be fitted to the

trap to direct condensate downward. The condensate line

must be vented. Check local codes concerning

condensate disposal. Refer to pages 1 and 2 for

condensate drain location.

FIGURE 5

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

UNIT

Minimum Pitch

1” (25 mm) per

10' (3 m) of line

MOUNTINGFRAME

OPEN VENT

CONDENSATE SIDE DRAIN CONNECTION

NOTE - Allow clearance toopen doors when installingcondensate piping.

CAULK AROUND CONDENSATE COUPLING

Page 7

LGH/LCH036, 048, 060, 072

FIGURE 6

UNIT

Minimum Pitch1” (25 mm) per 10'

(3 m) of line

MOUNTINGFRAME

CONDENSATE BOTTOM DRAIN CONNECTION

OPEN VENT

CAULK AROUND

CONDENSATE COUPLING

DRAIN PAN

Units are shipped with the drain coupling facing the front

of the unit. Condensate can be drained from the back or

bottom of the unit with the following modifications. The

unit can be installed in either downflow or horizontal air

discharge regardless of condensate drain location.

Rear Drain Connection

1- Remove the condensate drain mullion. See figure 7.

Remove the two panels on each side of the mullion.

FIGURE 7

CONDENSATEDRAIN MULLION

Two hinge screws must be removed in addition to the

mullion screws. See figure 8.

FIGURE 8

CONDENSATEDRAIN MULLION

REMOVETWO

SCREWS

UNITS WITH HINGED PANELS

2- Lift the front edge of the drain pan and slide pan out

of unit. See figure 9.

FIGURE 9

REMOVE DRAIN PAN

DRAIN PAN

3- Make sure the cap over the unit bottom drain hole is

secure.

4- Rotate the drain pan until the downward slope is

toward the back of the unit. Slide the drain pan back

into the unit. Be careful not to dislodge the cap over

the bottom drain hole.

5- From the back side of the unit, pull the drain pan

coupling through the rear condensate opening.

6- Replace the condensate drain mullion.

Bottom Drain Connection

1- Remove the condensate drain mullion. See figure 7.

2- Lift the front edge of the drain pan and slide pan out

of unit. See figure 9.

3- Turn the drain pan upside down and drill a pilot hole

through the bottom of the drain pan in the center of

the coupling. See figure 10.

FIGURE 10

BOTTOM CONDENSATE DRAIN

DRILL A PILOTHOLE IN CENTER

OF COUPLING

After drilling the pilothole, drill a 7/8” hole from

the inside of the pan.

CAUTION: Be careful not todamage the coupling threads

when drilling the hole.

Page 8

LGH/LCH036, 048, 060, 072

4- From the inside of the pan, use a Vari-Bit® bit to

enlarge the hole to 7/8”. Do not damage coupling

threads.

5- Remove the cap over the unit bottom drain hole.

6- Slide the drain pan back into the unit.

7- From the back side of the unit, pull the drain pan

coupling through the rear condensate opening.

8- From the front side of the unit, move the drain pan

until the bottom coupling settles into the unit bottom

drain opening. Once in place, check to make sure the

coupling is still positioned through the rear

condensate drain hole.

9- Use a field-provided 3/4” plug to seal side drain

connection.

10- Replace the condensate drain mullion.

Connect Gas Piping (Gas Units)

Before connecting field-provided piping, check with gas

company or authorities having jurisdiction for local code

requirements. When installing gas supply piping, length

of run from gas meter must be considered in determining

pipe size for 0.5” w.c. (.12kPa) maximum pressure drop.

Do not use supply pipe smaller than unit gas connection.

Operating pressures at the unit gas connection must be

as shown in table 1.

TABLE 1OPERATING PRESSURE AT GAS CONNECTION “w.c.

Natural Gas LP / Propane Gas

Min. Max. Min. Max.

036-072 4.5 10.5 11 13

When making piping connections a drip leg should be

installed on vertical pipe runs to serve as a trap for

sediment or condensate. A 1/8” N.P.T. plugged tap is

located on gas valve for test gauge connection. Refer to

Heating Start-Up section for tap location. Install a ground

joint union between the gas control manifold and the

main manual shut-off valve. See figure 11 for gas supply

piping entering outside the unit. Figure 12 shows

complete bottom gas entry piping.

Compounds used on threaded joints of gas piping shall be

resistant to the action of liquified petroleum gases.

Do not use Teflon® tape to seal gas piping. Use a

moderate amount of pipe compound on the gas pipe only.

Make sure the two end threads are bare.

CAUTION

If a flexible gas connector is required or allowed bythe authority that has jurisdiction, black iron pipeshall be installed at the gas valve and extend outside the furnace cabinet.

WARNING

Do not exceed 600 in-lbs (50 ft.-lbs) torque when attaching the gas piping to the gas valve.

IMPORTANT

Compounds used on threaded joints of gas pipingmust be resistant to the actions of liquified petroleum gases.

FIGURE 11

TO GASSUPPLY

MANUAL MAIN

SHUT-OFF VALVE

GAS PIPING

SUPPORT

GROUND

JOINT UNION

(REFER TO

LOCAL CODES)

DRIP LEG

OUTSIDE OF UNIT GAS PIPE CONNECTION

TO GASVALVE

Page 9

LGH/LCH036, 048, 060, 072

DRIP LEG

MANUAL MAIN

SHUT-OFF VALVE

GROUND

JOINT UNION

FIGURE 12

BOTTOM ENTRY GAS PIPING COMPLETED

7” NIPPLE

STREETELBOW

TO GASSUPPLY

TO GASVALVE

Grommets for both gas pipe openings are field provided.

2-1/2” NIPPLE

Pressure Test Gas Piping (Gas Units)

When pressure testing gas lines, the gas valve must

be disconnected and isolated. Gas valves can be

damaged if subjected to more than 0.5 psig (3.48kPa).

See figure 13.

NOTE-Codes may require that manual main shut-off

valve and union (furnished by installer) be installed in

gas line external to unit. Union must be of the ground

joint type.

After all connections have been made, check all piping

connections for gas leaks. Also check existing unit gas

connections up to the gas valve; loosening may occur

during installation. Use a leak detection solution or other

preferred means. Do not use matches candles or other

sources of ignition to check for gas leaks.

CAUTIONSome soaps used for leak detection are corrosiveto certain metals. Carefully rinse piping thoroughlyafter leak test has been completed. Do not usematches, candles, flame or othe sources of ignitionto check for gas leaks.

WARNINGDanger of explosion. Can cause injuryor product or property damage. Do notuse matches, candles, flame or othersources of ignition to check for leaks.

NOTE-In case emergency shut down is required, turn off

the main manual shut-off valve and disconnect main

power to unit. These devices should be properly labeled

by the installer.

GAS VALVE CAP

MANUAL MAIN

SHUT-OFF VALVE

FIGURE 13

PRESSURE TEST GAS LINE

High Altitude Derate

Locate the high altitude conversion sticker in the unit

literature bag. Fill out the conversion sticker and affix next

to the unit nameplate.

Refer to table 2 for high altitude adjustments.

TABLE 2HIGH ALTITUDE DERATE

Altitude Ft.* Gas Manifold Pressure

2000-4500 See Unit Nameplate

4500 And Above Derate 2% / 1000 Ft. Above Sea Level

*Units installed at 0-2000 feet do not need to be modified.

NOTE ‐ This is the only permissible derate for these units.

Electrical Connections

POWER SUPPLY

Do not apply power or close disconnect switch until

installation is complete. Refer to start-up directions.

Refer closely to unit wiring diagram.

Refer to unit nameplate for minimum circuit ampacity

and maximum fuse size.

1- Units are factory-wired for 230,460,575 volt supply.

For 208V supply, remove the insulated terminal

cover from the 208V terminal on the control

transformer. Move the wire from the transformer

240V terminal to the 208V terminal. Place the

insulated terminal cover on the unused 240V

terminal.

2- Route power through the bottom power entry area

and connect to L1, L2, and L3 on the top of K1 in

control area above compressor. Secure power

wiring with factory-installed wire ties provided in

Page 10

LGH/LCH036, 048, 060, 072

control box. Route power to TB2 on units equipped

with electric heat. Route power to S48 or CB10 If

unit is equipped with the optional disconnect

switch or circuit breaker. See unit wiring diagram.

3- Solar-Ready Units Only -

All solar-ready units are equipped with an S48 circuit

breaker and F54 solar fuse block. Connect power

wiring to the top of S48. Connect solar module wiring

to the pigtails provided on the bottom of F54. Solar

equipment must be specified for use with this unit.

CONTROL WIRING

CAUTIONElectrostatic discharge can affect electronic components. Take precautions during unit installationand service to protect the electronic controls. Precautions will help to avoid control exposure to electrostatic discharge by putting the unit, the controland the technician at the same electrostatic potential. Neutralize electrostatic charge by touchinghands and all tools on an unpainted unit surface,such as the gas valve or blower deck, before performing any service procedure.

A-Thermostat Location

Room thermostat mounts vertically on a standard 2” X 4”

handy box or on any non-conductive flat surface.

Locate thermostat approximately 5 feet (1524mm)

above the floor in an area with good air circulation at

average temperature. Avoid locating the room

thermostat where it might be affected by:

-drafts or dead spots behind doors and in corners

-hot or cold air from ducts

-radiant heat from sun or appliances

-concealed pipes and chimneys

B-Control Wiring

The Unit Controller will operate the unit from a

thermostat or zone sensor based on the System Mode.

The default System Mode is the thermostat mode. Refer

to the Unit Controller Installation and Setup Guide to

change the System Mode. Use the menu navigation

arrows and select button; see Settings - Install.

Thermostat Mode

1- Route thermostat cable or wires from subbase to

control area above compressor (refer to unit

dimensions to locate bottom and side power entry).

IMPORTANT - Unless field thermostat wires are rated

for maximum unit voltage, they must be routed away

from line voltage wiring. Use wire ties located near the

lower left corner of the controls hat section to secure

thermostat cable.

Use18 AWG wire for all applications using remotely

installed electro-mechanical and electronic

thermostats.

2- Install thermostat assembly in accordance with

instructions provided with thermostat.

3- Connect thermostat wiring to Unit Controller on the

lower side of the controls hat section.

4- Wire as shown in figure 14 for electro-mechanical

and electronic thermostats. If using other

temperature control devices or energy management

systems see instructions and wiring diagram

provided by manufacturer.

IMPORTANT-Terminal connections at the wall plate or

subbase must be made securely. Loose control wire

connections may allow unit to operate but not with proper

response to room demand.

Zone Sensor Mode

The Unit Controller will operate heating and cooling

based on the Unit Controller internal setpoints and the

temperature from the A2 zone sensor. An optional

Network Control Panel (NCP) can also be used to provide

setpoints. A thermostat or return air sensor can be used

as a back-up mode. Make zone sensor wiring

connections as shown in figure 15.

Page 11

LGH/LCH036, 048, 060, 072

FIGURE 14

FIELD WIRING WITH ELECTRONIC AND ELECTRO-MECHANICAL THERMOSTATS(Thermostat Mode)

K55

B

A

K55−17

5

2

S86

J262

C

10

11

12

P297J297A1

2B

3

4

5

6

7

8C

9

10

R

OCP

C

G

W1

W2

Y1

Y2

24 V POWER

W1

W2

P26

2

A55R

OCP

C

G

W1

W2

Y1

Y2

TO R

TO G

TO Y1

TO PROVIDE SUPERMARKET REHEAT SCHEMEUSE S86 DEHUMIDISTAT AND K55.

ALL OTHER THERMOSTATSIGNALS REMAIN CONNECTEDAS SHOWN ON THE RIGHT.

TO M2 THERMOSTAT INPUTS

2

2

FIGURE 15

FIELD WIRING IN ZONE SENSOR MODE(Zone Sensor Mode)

A2 SENSOR

OUTPUTSSENSOR

SENSOR24VAC

R C

IAQ

HUMAI1 D01TMP D02

UNIT CONTROLLER

J298

C-Hot Gas Reheat Units Only -

1- Install humidity sensor in accordance with

instructions provided with sensor. A DDC input may

be used to initiate dehumidification instead of a

sensor.

2- Make wiring connections as shown in figure 14 for

Thermostat Mode or figure 15 for Zone Sensor

Mode. In addition, connect either a humidity

sensor or a dehumidification input. See figure 16

or 17 for humidity sensor wiring or figure 18 for

dehumidification input wiring.

Humidity Sensor Cable Applications:

Wire runs of 50 feet (mm) or less:

Use two separate shielded cables containing 20AWG

minimum, twisted pair conductors with overall shield.

Belden type 8762 or 88760 (plenum) or equivalent.

Connect both cable shield drain wires to TB1-7 as shown

in figure 16.

Wire runs of 150 feet (mm) or less:

Use two separate shielded cables containing 18AWG

minimum, twisted pair conductors with overall shield.

Belden type 8760 or 88760 (plenum) or equivalent.

Connect both cable shield drain wires to TB1-7 as shown

in figure 16.

Wire runs over 150 feet (mm):

Use a local, isolated 24VAC transformer such as Lennox

cat #18M13 (20VA minimum) to supply power to RH

sensor as shown in figure 17. Use two shielded cables

containing 20AWG minimum, twisted pair conductors

with overall shield. Belden type 8762 or 88760 (plenum)

or equivalent.

Page 12

LGH/LCH036, 048, 060, 072

FIGURE 16

FIELD WIRING REHEAT UNITS (Using A HumiditySensor With Less Than 150 Ft. Wire Runs)

9

8

10

11

122

J262

B

5

P298J298A

6

1

2B

3

4C

5

6

7D

10

A91

VIN

VO

GND

P26

2

R

C

AI−1

HUM

TMP

DO−1

C

DI−1

DO−2

FIGURE 17

FIELD WIRING REHEAT UNITS (Using A HumiditySensor With More than 150 Ft. Wire Runs)

ISOLATED 24V

TRANSFORMER

9

8

P298J298A1

2B

3

4C

5

6

7D

10

A91

VIN

VO

GND

R

C

AI-1

HUM

TMP

DO-1

C

DI-1

DO-2

NOT

CONNECTED

NOTCONNECTED

DRAIN

A55 UNITCONTROLLER

FIGURE 18

FIELD WIRING REHEAT UNITS(Using A Dehumidification Switch)

7

10

8

9

R

DI−4

C

Use 24 VAC (R) from any terminalavailable on J299−2, −5, or −7.

J299

DEHUMIDIFICATIONSWITCH

Blower Operation and Adjustments

Three-, four- and five-ton units are equipped with either

direct drive or multi-pole belt drive blowers. 6-ton units

are available with belt drive blowers only.

IMPORTANTThree phase scroll compressors must be phasedsequentially for correct compressor and blowerrotation. Follow “COOLING START-UP” section ofinstallation instructions to ensure proper compressor and blower operation.

A-Blower Operation

Refer to the Unit Controller Installation and Setup Guide

to energize blower. Use the menu navigation arrows and

select button; see Service - Test.

B-Determining Unit CFM

1- The following measurements must be made with air

filters in place.

IMPORTANT - On units equipped with direct drive

blowers, determine and adjust high speed CFM before

low speed CFM. Low speed CFM should be adjusted to

2/3 of high speed CFM. A low speed adjustment less than

2/3 of high speed will improve humidity removal; refer to

product data for more information.

2- With all access panels in place, measure static

pressure external to unit (from supply to return).

Blower performance data is based on static pressure

readings taken in locations shown in figure 19.

Note - Static pressure readings can vary if not taken

where shown.

3- Measure the indoor blower wheel RPM.

4- Referring to Page 16 through Page 26, use static

pressure and RPM readings to determine unit CFM.

Use Page 27 when installing units with any of the

options or accessories listed. Refer to table 3 for

minimum airflow when electric heat is installed.

TABLE 3MINIMUM AIRFLOW-LC UNITS WITH ELECTRIC HEAT

(BELT DRIVE)

KwCFM

Downflow & Horizontal Airflow

LCH036HE 1080

LCH048HE 1280

LCH060HE 1600

Page 13

LGH/LCH036, 048, 060, 072

FIGURE 19

LOCATION OF STATIC PRESSURE READINGS

SUPPLY AIRREADINGLOCATION

SUPPLYRE

TURN

INSTALLATIONS WITH DUCTWORK

SUPPLY RETURN

INSTALLATIONS WITH CEILING DIFFUSERS

MAINDUCT RUN

FIRST BRANCHOFF OF MAIN RUN

DIFFUSER

ROOFTOP UNIT ROOFTOP UNIT

SUPPLY AIRREADINGLOCATION

RETURN AIRREADING LOCATION

RETURN AIRREADINGLOCATION

TABLE 4ECTO SETTINGS

Unit Controller “SETTINGS-CONTROL-MSAV”Menu

ECTO

LGH/LCH Unit Factory Settings

Field Setting Description036H4E

048H4E

060H4E

036-060S4T

SMOKE SPEED 0.02 55 80 59Not Applica

ble% torque for indoor blower smokespeed.

HIGH SPEED 0.04 55 80 59Not Applica

ble% torque for indoor blower highspeed.

LOW SPEED 0.05 28 40 36Not Applica

ble% torque for indoor blower lowspeed.

Unit Controller “SETTINGS-SETPOINTS-DAMPER” Menu

ECTO

LGH/LCH Unit Factory Settings

Field Setting Description036H4E

048H4E

060H4E

036-060S4T

MIN OCP BLOWER LOW 0.09 15 15 15Not Applica

bleDamper minimum position duringlow indoor blower.

MIN OCP BLOWER HIGH 5.24 10 10 10 10Damper minimum position duringhigh indoor blower.

Installer: Circle applicable unit model number and record any ECTO changes under “Field Setting” column. Settings need to be recorded by

installer for use when unit controller is replaced or reprogrammed. Refer to unit controller guide “Setting” menu path or use optional software to

change settings.

C-Adjusting Unit CFM - Direct Drive Blowers

The supply CFM can be adjusted by changing Unit

Controller settings; see Settings - Control - MSAV menu.

Refer to table 4. Adjustments can also be made by using

optional software. Record any CFM changes on the

ECTO Settings label located on the inside of the

compressor access panel.

D-Adjusting Unit CFM - Belt Drive Blowers

The blower RPM can be adjusted at the motor pulley.

Loosen Allen screw and turn adjustable pulley clockwise

to increase CFM. Turn counterclockwise to decrease

CFM. See figure 20. Do not exceed minimum and

maximum number of pulley turns as shown in table 5.

TABLE 5

MINIMUM AND MAXIMUM PULLEY ADJUSTMENT

Belt Min. Turns Open Maxi. Turns Open

A Section No minimum 5

E-Blower Belt Adjustment - Belt Drive

Maximum life and wear can be obtained from belts only

if proper pulley alignment and belt tension are

maintained. Tension new belts after a 24-48 hour

period of operation. This will allow belt to stretch and

seat grooves. Make sure blower and motor pulley are

aligned as shown in figure 21.

Page 14

LGH/LCH036, 048, 060, 072

BLOWER ASSEMBLY

TO INCREASE BELT TENSION

1-Loosen four bolts securing motor base to mountingframe.

2-Slide the motor downward to tighten the belt.

3-Tighten four bolts on motor base.

TO INCREASE CFMLOOSEN ALLEN SCREW &

TURN PULLEY CLOCKWISE

TO DECREASE CFMTURN PULLEY

COUNTERCLOCKWISE

FIGURE 20

PULLEY

MOTOR

SIDE VIEW

ALLENSCREW

LOOSEN FOUR BOLTS ANDSLIDE BLOWER MOTOR

DOWNWARD TO TIGHTEN BELT

LOOSEN ALLENSCREW TO

ADJUST CFM

1- Loosen four bolts securing motor base to mounting

frame. See figure 20.

2- To increase belt tension -

Slide blower motor downward to tighten the belt. This

increases the distance between the blower motor and

the blower housing.

3- To loosen belt tension -

Slide blower motor upward to loosen the belt. This

decreases the distance between the blower motor

and the blower housing.

4- Tighten four bolts securing motor base to the

mounting frame.

FIGURE 21

PULLEY ALIGNMENT

BELT BLOWERPULLEY

MOTORPULLEY

NOT ALIGNED

ALIGNED

F-Blower Belt Adjustment - Units Equipped With An

Optional Belt Tensioner

1- Remove blower belt.

2- Remove bracket from blower housing. See figure 23.

3- Remove the screw from the back side of the bracket.

4- Move the tensioner to the appropriate adjustment

hole and reinstall screw.

5- Replace bracket.

6- Replace blower belt. See figure 24.

G-Check Belt Tension

Overtensioning belts shortens belt and bearing life.

Check belt tension as follows:

1- Measure span length X. See figure 22.

MEASURE BELT TENSION

FIGURE 22

DEFLECTION 1/64” PER INCH OF SPANOR 1.5mm PER 100mm OF SPAN

FORCE

2- Apply perpendicular force to center of span (X) with

enough pressure to deflect belt 1/64” for every inch

of span length or 1.5mm per 100mm of span length.

Example: Deflection distance of a 40” span would be

40/64” or 5/8”.

Example: Deflection distance of a 400mm span

would be 6mm.

Page 15

LGH/LCH036, 048, 060, 072

3- Measure belt deflection force. For a used belt, the

deflection force should be 5 lbs. (35kPa). A new belt

deflection force should be 7 lbs. (48kPa).

A force below these values indicates an

undertensioned belt. A force above these values

indicates an overtensioned belt.

H-Field-Furnished Blower Drives

For field-furnished blower drives, use page 19 through 26

to determine BHP and RPM required. Reference Page 27

to determine the drive kit number. Reference table 6 for

manufacturer's drive numbers.

FIGURE 23

ADJUST BELT TENSIONER

MAXIMUM

TENSION

MINIMUM

TENSION

INDICATOR SHOULD BE

BETWEEN MINIMUM AND

MAXIMUM TENSION LINES

FACTORY-SET

POSITION

TIGHTER

BELT

POSITION

TENSIONER

TIGHTEST

BELT

POSITION

BRACKET

INSTALL BELT

FIGURE 24

1

2

3

4

TENSIONERDRIVER

PULLEY

DRIVEN

PULLEY

ROTATE DRIVEN

PULLEY TO SEAT BELT

Page 16

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Page 17

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1162

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1060

1367

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1097

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1134

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603

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1223

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1133

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1104

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414

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1533

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1490

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Page 18

BLO

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1275

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1233

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1192

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567

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692

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2072

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- - -

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1662

578

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1854

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1157

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- - -

- - -

- - -

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- - -

- - -

- - -

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- - -

- - -

- - -

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1994

861

1 163

2165

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1185

2336

1125

1206

Page 19

BLOWER DATA - BELT DRIVE - 3 TONBLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, etc.). 2 - Any field installed accessories air resistance (duct resistance, diffuser, etc.).See page 27 for blower motors and drives and wet coil and options/accessory air resistance data.

DOWNFLOW

Air Volume (cfm)

External Static (in.w.g.)

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

700 453 0.07 523 0.11 596 0.14 679 0.17 762 0.18 828 0.21 878 0.24 927 0.26 979 0.29 1029 0.31

800 471 0.09 542 0.13 614 0.16 696 0.19 777 0.21 841 0.23 889 0.26 938 0.29 990 0.31 1042 0.34

900 493 0.11 563 0.15 634 0.19 715 0.21 793 0.23 854 0.26 902 0.29 950 0.32 1002 0.34 1054 0.36

1000 517 0.14 587 0.18 657 0.21 736 0.24 811 0.26 869 0.29 916 0.32 964 0.35 1015 0.37 1067 0.4

1100 544 0.17 613 0.21 683 0.24 759 0.27 831 0.3 886 0.32 931 0.36 978 0.38 1028 0.41 1078 0.43

1200 574 0.2 643 0.24 711 0.27 784 0.3 852 0.33 904 0.36 947 0.39 993 0.42 1042 0.45 1091 0.47

1300 608 0.24 676 0.28 743 0.31 812 0.34 875 0.37 923 0.4 964 0.44 1010 0.46 1057 0.49 1104 0.51

1400 645 0.28 711 0.31 776 0.35 842 0.38 898 0.41 942 0.44 983 0.48 1028 0.51 1074 0.53 1120 0.56

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


700 1078 0.33 1124 0.36 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

800 1091 0.36 1137 0.39 1180 0.41 1221 0.44 1260 0.47 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

900 1105 0.39 1150 0.42 1192 0.45 1232 0.47 1270 0.5 1307 0.53 1345 0.56 1382 0.59 1420 0.62 - - - - - -

1000 1117 0.42 1162 0.45 1203 0.48 1242 0.51 1279 0.54 1316 0.57 1353 0.6 1390 0.63 1427 0.66 1465 0.7

1100 1126 0.46 1171 0.49 1212 0.52 1251 0.56 1288 0.59 1325 0.62 1361 0.65 1397 0.68 1433 0.71 1470 0.75

1200 1137 0.5 1180 0.54 1222 0.57 1260 0.6 1298 0.64 1334 0.67 1369 0.7 1404 0.73 1440 0.77 1477 0.8

1300 1149 0.55 1191 0.58 1232 0.62 1270 0.65 1307 0.69 1343 0.72 1378 0.76 1413 0.79 1449 0.82 1486 0.86

1400 1163 0.6 1204 0.63 1243 0.67 1281 0.71 1317 0.74 1353 0.78 1388 0.82 1423 0.85 1459 0.89 1496 0.92

Page 20


HORIZONTAL

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


700 440 0.07 510 0.1 585 0.12 657 0.14 726 0.17 793 0.2 856 0.23 915 0.25 967 0.28 1016 0.31

800 456 0.08 526 0.11 600 0.14 672 0.16 739 0.19 804 0.22 866 0.25 923 0.28 975 0.31 1025 0.34

900 474 0.1 544 0.13 617 0.16 688 0.18 754 0.21 818 0.24 877 0.27 932 0.3 984 0.33 1034 0.36

1000 495 0.12 565 0.15 637 0.18 707 0.21 771 0.23 832 0.27 889 0.3 943 0.33 993 0.36 1043 0.39

1100 518 0.14 588 0.18 659 0.21 727 0.23 789 0.26 848 0.3 903 0.33 954 0.37 1003 0.4 1052 0.43

1200 544 0.17 613 0.21 682 0.24 748 0.27 809 0.29 866 0.33 918 0.37 967 0.4 1014 0.43 1062 0.46

1300 572 0.21 640 0.24 707 0.27 771 0.3 830 0.33 884 0.37 934 0.41 981 0.44 1027 0.47 1073 0.5

1400 602 0.24 669 0.28 733 0.31 795 0.34 851 0.37 903 0.41 950 0.45 995 0.49 1040 0.52 1086 0.55

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


700 1065 0.33 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

800 1075 0.36 1122 0.39 1164 0.42 1203 0.45 1241 0.47 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

900 1086 0.39 1133 0.42 1174 0.45 1213 0.48 1250 0.51 1286 0.54 1322 0.57 1357 0.6 1392 0.64 - - - - - -

1000 1094 0.43 1142 0.46 1183 0.49 1222 0.52 1259 0.55 1295 0.58 1330 0.62 1365 0.65 1400 0.68 1435 0.71

1100 1102 0.46 1148 0.49 1191 0.53 1230 0.56 1267 0.6 1303 0.63 1338 0.66 1373 0.69 1408 0.73 1444 0.76

1200 1110 0.5 1156 0.53 1198 0.57 1238 0.61 1275 0.64 1311 0.68 1346 0.71 1381 0.74 1416 0.78 1452 0.81

1300 1120 0.54 1164 0.58 1207 0.62 1246 0.65 1283 0.69 1319 0.73 1354 0.76 1389 0.79 1424 0.83 1460 0.86

1400 1131 0.59 1175 0.63 1216 0.67 1255 0.7 1292 0.74 1327 0.78 1362 0.81 1397 0.84 1432 0.88 1468 0.91

Page 21


DOWNFLOW

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


900 502 0.12 573 0.15 644 0.19 725 0.22 802 0.24 861 0.26 908 0.29 957 0.32 1009 0.34 1061 0.37

1000 528 0.14 598 0.18 668 0.22 747 0.24 821 0.27 877 0.3 923 0.33 971 0.35 1022 0.38 1074 0.4

1100 557 0.17 626 0.21 695 0.25 772 0.28 841 0.3 894 0.33 939 0.36 986 0.39 1037 0.41 1087 0.44

1200 589 0.21 657 0.25 725 0.28 798 0.31 864 0.33 913 0.37 956 0.4 1003 0.43 1052 0.45 1100 0.48

1300 625 0.25 692 0.28 759 0.32 827 0.34 887 0.37 933 0.41 975 0.44 1021 0.47 1068 0.49 1115 0.52

1400 665 0.29 730 0.32 794 0.35 857 0.38 911 0.42 953 0.45 995 0.49 1040 0.52 1086 0.54 1131 0.57

1500 706 0.33 768 0.36 829 0.39 886 0.43 934 0.46 974 0.5 1015 0.54 1060 0.56 1105 0.59 1149 0.62

1600 746 0.37 805 0.4 862 0.44 914 0.48 957 0.52 996 0.55 1037 0.59 1081 0.62 1126 0.64 1167 0.68

1700 784 0.42 840 0.45 893 0.49 940 0.53 980 0.57 1019 0.61 1060 0.64 1104 0.67 1147 0.7 1187 0.74

1800 821 0.47 874 0.51 923 0.55 967 0.59 1006 0.63 1044 0.67 1085 0.7 1128 0.73 1170 0.77 1208 0.82

1900 857 0.53 906 0.57 952 0.62 994 0.66 1032 0.7 1071 0.73 1112 0.76 1154 0.8 1194 0.85 1230 0.9

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


900 1111 0.39 1156 0.42 1197 0.45 1236 0.48 1275 0.51 1312 0.54 1349 0.56 1387 0.59 1424 0.62 - - - - - -

1000 1124 0.43 1168 0.46 1209 0.49 1247 0.52 1285 0.55 1322 0.58 1358 0.61 1395 0.64 1432 0.67 1470 0.7

1100 1134 0.47 1178 0.5 1219 0.53 1258 0.56 1295 0.6 1331 0.63 1367 0.66 1403 0.69 1439 0.72 1477 0.75

1200 1146 0.51 1189 0.54 1230 0.58 1268 0.61 1305 0.65 1341 0.68 1376 0.71 1411 0.74 1447 0.77 1485 0.81

1300 1159 0.55 1201 0.59 1241 0.63 1279 0.66 1315 0.7 1351 0.73 1386 0.77 1421 0.8 1457 0.83 1495 0.87

1400 1173 0.61 1214 0.64 1253 0.68 1290 0.72 1327 0.75 1362 0.79 1397 0.82 1432 0.86 1468 0.89 1506 0.93

1500 1189 0.66 1228 0.7 1266 0.74 1303 0.78 1339 0.81 1374 0.85 1409 0.89 1445 0.92 1481 0.96 1519 1

1600 1206 0.72 1244 0.76 1281 0.8 1317 0.84 1353 0.88 1388 0.92 1423 0.96 1459 1 1496 1.04 1535 1.08

1700 1224 0.79 1261 0.83 1298 0.87 1334 0.91 1369 0.95 1404 0.99 1440 1.03 1476 1.07 1513 1.12 1552 1.16

1800 1244 0.86 1280 0.91 1316 0.95 1352 0.99 1387 1.03 1422 1.07 1457 1.11 1494 1.16 1532 1.2 1570 1.24

1900 1265 0.95 1301 1 1336 1.04 1371 1.08 1406 1.12 1441 1.16 1477 1.2 1515 1.24 1553 1.29 1592 1.33

Page 22


HORIZONTAL

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


900 483 0.1 554 0.13 627 0.16 699 0.19 765 0.22 826 0.24 882 0.27 935 0.3 986 0.33 1039 0.36

1000 505 0.12 576 0.16 648 0.19 719 0.21 784 0.24 842 0.27 896 0.3 947 0.33 998 0.37 1050 0.4

1100 530 0.15 601 0.18 671 0.21 741 0.24 804 0.27 860 0.3 912 0.34 961 0.37 1010 0.4 1060 0.43

1200 558 0.18 627 0.22 696 0.25 764 0.28 824 0.3 878 0.34 928 0.37 975 0.41 1023 0.44 1072 0.47

1300 588 0.22 656 0.25 723 0.28 788 0.31 846 0.34 897 0.38 945 0.42 990 0.45 1037 0.48 1084 0.51

1400 621 0.25 687 0.29 752 0.32 814 0.35 868 0.38 916 0.42 962 0.46 1006 0.5 1052 0.53 1098 0.56

1500 655 0.29 719 0.33 781 0.36 839 0.39 890 0.43 936 0.47 979 0.51 1023 0.55 1068 0.58 1113 0.61

1600 690 0.33 751 0.37 810 0.4 865 0.44 912 0.48 955 0.52 997 0.56 1041 0.6 1086 0.63 1129 0.66

1700 725 0.38 784 0.41 839 0.45 891 0.49 935 0.53 975 0.58 1017 0.62 1060 0.65 1104 0.68 1147 0.72

1800 761 0.42 816 0.46 868 0.5 916 0.55 957 0.59 997 0.64 1038 0.68 1081 0.71 1124 0.74 1165 0.79

1900 795 0.48 848 0.52 897 0.56 942 0.61 981 0.66 1020 0.7 1060 0.74 1103 0.77 1145 0.81 1183 0.85

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


900 1091 0.4 1138 0.43 1180 0.46 1220 0.49 1257 0.53 1293 0.56 1329 0.59 1364 0.62 1400 0.65 1435 0.69

1000 1101 0.43 1149 0.46 1190 0.5 1229 0.53 1266 0.57 1302 0.6 1338 0.63 1373 0.66 1408 0.7 1444 0.73

1100 1110 0.46 1156 0.5 1199 0.54 1238 0.57 1275 0.61 1311 0.64 1346 0.67 1381 0.71 1416 0.74 1452 0.78

1200 1119 0.5 1165 0.54 1207 0.58 1247 0.62 1284 0.65 1319 0.69 1355 0.72 1389 0.75 1425 0.79 1460 0.82

1300 1130 0.55 1175 0.59 1216 0.63 1255 0.66 1292 0.7 1328 0.74 1363 0.77 1398 0.8 1433 0.84 1469 0.87

1400 1143 0.6 1186 0.63 1226 0.67 1265 0.71 1302 0.75 1337 0.79 1372 0.82 1406 0.85 1441 0.89 1477 0.93

1500 1156 0.65 1198 0.69 1237 0.73 1275 0.77 1311 0.8 1346 0.84 1381 0.88 1415 0.91 1450 0.95 1486 0.98

1600 1171 0.7 1211 0.74 1249 0.78 1286 0.82 1321 0.86 1356 0.9 1390 0.93 1425 0.97 1460 1.01 1496 1.05

1700 1186 0.76 1225 0.8 1262 0.84 1298 0.88 1333 0.92 1367 0.96 1401 1 1436 1.03 1471 1.07 1507 1.12

1800 1202 0.83 1240 0.87 1276 0.91 1311 0.95 1345 0.99 1380 1.03 1413 1.07 1448 1.11 1483 1.15 1520 1.19

1900 1220 0.9 1256 0.94 1291 0.99 1326 1.03 1360 1.07 1393 1.1 1427 1.14 1462 1.18 1497 1.22 1534 1.27

Page 23


DOWNFLOW

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


1100 529 0.17 591 0.21 653 0.24 724 0.26 810 0.26 886 0.26 942 0.28 982 0.32 1022 0.36 1064 0.40

1200 553 0.20 615 0.24 677 0.27 747 0.30 829 0.30 902 0.30 955 0.33 994 0.36 1034 0.40 1075 0.44

1300 579 0.23 640 0.27 701 0.31 770 0.33 850 0.34 918 0.35 969 0.37 1007 0.41 1047 0.45 1088 0.49

1400 609 0.27 669 0.31 729 0.34 796 0.37 871 0.38 936 0.39 983 0.41 1022 0.45 1061 0.49 1102 0.53

1500 658 0.28 715 0.32 771 0.36 832 0.39 898 0.41 955 0.43 999 0.46 1037 0.50 1077 0.54 1117 0.58

1600 720 0.28 769 0.33 819 0.37 871 0.41 926 0.44 975 0.47 1016 0.51 1054 0.55 1093 0.60 1133 0.63

1700 779 0.30 822 0.35 864 0.39 908 0.44 953 0.48 995 0.52 1034 0.57 1072 0.61 1111 0.65 1150 0.69

1800 828 0.34 864 0.39 901 0.43 938 0.48 977 0.53 1015 0.58 1053 0.63 1091 0.67 1130 0.71 1169 0.75

1900 857 0.41 892 0.45 927 0.50 962 0.55 999 0.60 1036 0.65 1074 0.69 1112 0.73 1150 0.77 1188 0.81

2000 879 0.47 913 0.52 948 0.56 984 0.61 1020 0.67 1058 0.72 1096 0.76 1134 0.80 1172 0.84 1210 0.88

2100 900 0.53 935 0.58 970 0.63 1007 0.69 1044 0.74 1081 0.79 1119 0.84 1157 0.88 1195 0.91 1233 0.95

2200 922 0.60 958 0.65 994 0.71 1031 0.76 1068 0.82 1106 0.87 1143 0.91 1180 0.95 1218 0.99 1255 1.03

2300 947 0.67 983 0.73 1020 0.79 1057 0.85 1094 0.90 1131 0.95 1168 1.00 1205 1.03 1242 1.07 1277 1.13

2400 974 0.76 1010 0.82 1047 0.88 1084 0.94 1120 0.99 1157 1.04 1193 1.08 1230 1.12 1267 1.16 1300 1.23

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


1100 1106 0.44 1151 0.47 1197 0.49 1238 0.52 1272 0.56 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1200 1117 0.48 1161 0.51 1206 0.53 1245 0.57 1278 0.60 1312 0.64 1346 0.67 1380 0.71 - - - - - - - - - - - -

1300 1129 0.52 1172 0.55 1216 0.58 1254 0.61 1287 0.65 1320 0.69 1354 0.72 1388 0.76 1421 0.79 1455 0.82

1400 1143 0.57 1185 0.60 1227 0.63 1264 0.66 1296 0.70 1329 0.74 1363 0.77 1397 0.81 1430 0.85 1464 0.88

1500 1157 0.62 1199 0.65 1239 0.68 1275 0.71 1306 0.75 1339 0.79 1373 0.83 1406 0.87 1440 0.90 1473 0.94

1600 1173 0.67 1214 0.70 1253 0.73 1288 0.77 1318 0.81 1351 0.85 1384 0.89 1417 0.93 1451 0.96 1484 1.00

1700 1190 0.72 1230 0.76 1268 0.79 1301 0.83 1331 0.87 1363 0.92 1396 0.95 1429 0.99 1462 1.03 1495 1.07

1800 1208 0.78 1247 0.82 1285 0.86 1317 0.90 1345 0.94 1377 0.98 1410 1.02 1442 1.06 1475 1.10 1508 1.14

1900 1227 0.85 1267 0.88 1303 0.92 1333 0.97 1360 1.02 1392 1.06 1424 1.10 1457 1.14 1489 1.18 1522 1.22

2000 1248 0.92 1286 0.96 1321 1.00 1350 1.05 1377 1.10 1409 1.14 1441 1.18 1473 1.22 1505 1.26 1537 1.30

2100 1269 1.00 1306 1.04 1339 1.09 1367 1.14 1395 1.19 1426 1.23 1458 1.27 1490 1.31 1522 1.35 1554 1.39

2200 1290 1.09 1324 1.14 1356 1.19 1385 1.24 1413 1.28 1444 1.32 1476 1.36 1508 1.41 1540 1.45 1572 1.49

2300 1310 1.20 1343 1.26 1374 1.30 1403 1.34 1432 1.38 1464 1.42 1495 1.46 1527 1.51 1559 1.55 1591 1.59

2400 1332 1.31 1364 1.37 1394 1.41 1423 1.45 1453 1.48 1484 1.53 1516 1.57 1547 1.61 1579 1.65 1612 1.70

Page 24


HORIZONTAL

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


1100 503 0.14 569 0.17 636 0.20 703 0.23 769 0.26 842 0.28 909 0.30 964 0.33 1008 0.36 1049 0.40

1200 525 0.16 590 0.20 657 0.23 722 0.26 787 0.29 857 0.31 921 0.34 974 0.37 1016 0.40 1056 0.43

1300 548 0.19 613 0.23 679 0.26 743 0.29 806 0.32 873 0.35 934 0.37 984 0.41 1026 0.44 1065 0.47

1400 574 0.22 638 0.26 702 0.30 765 0.33 827 0.36 891 0.39 949 0.41 996 0.45 1037 0.48 1076 0.51

1500 609 0.25 671 0.29 733 0.33 793 0.36 851 0.39 911 0.42 965 0.46 1010 0.49 1049 0.53 1088 0.56

1600 654 0.28 712 0.32 769 0.36 825 0.39 879 0.43 933 0.47 982 0.50 1024 0.54 1063 0.58 1101 0.61

1700 703 0.31 756 0.35 807 0.39 858 0.43 906 0.47 955 0.51 999 0.55 1039 0.59 1078 0.63 1117 0.66

1800 752 0.34 798 0.38 844 0.43 889 0.48 933 0.52 977 0.57 1017 0.61 1056 0.65 1094 0.68 1133 0.72

1900 796 0.38 837 0.43 878 0.48 918 0.53 958 0.58 997 0.62 1036 0.67 1074 0.71 1112 0.74 1151 0.77

2000 833 0.43 870 0.48 907 0.54 943 0.59 980 0.64 1018 0.69 1055 0.73 1093 0.77 1131 0.80 1170 0.83

2100 864 0.50 897 0.55 931 0.60 966 0.65 1002 0.71 1038 0.76 1075 0.80 1113 0.83 1151 0.87 1189 0.90

2200 887 0.57 920 0.62 953 0.67 988 0.73 1024 0.78 1060 0.83 1097 0.87 1135 0.90 1173 0.94 1210 0.98

2300 909 0.64 942 0.70 976 0.75 1011 0.81 1046 0.86 1083 0.91 1120 0.95 1157 0.98 1195 1.02 1231 1.06

2400 931 0.72 965 0.78 999 0.83 1035 0.89 1071 0.94 1108 0.99 1144 1.03 1181 1.07 1217 1.10 1252 1.15

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


1100 1090 0.42 1132 0.45 1175 0.47 1216 0.50 1257 0.53 1296 0.56 1334 0.59 1370 0.62 1405 0.65 1439 0.69

1200 1097 0.46 1139 0.49 1181 0.51 1222 0.54 1263 0.57 1301 0.60 1338 0.63 1374 0.67 1409 0.70 1443 0.74

1300 1106 0.50 1147 0.53 1189 0.55 1230 0.58 1270 0.61 1307 0.65 1344 0.68 1379 0.72 1414 0.75 1447 0.79

1400 1116 0.54 1157 0.57 1198 0.60 1239 0.63 1278 0.66 1315 0.70 1351 0.74 1385 0.77 1419 0.81 1452 0.85

1500 1128 0.59 1168 0.62 1209 0.64 1249 0.68 1287 0.71 1323 0.75 1358 0.79 1393 0.83 1426 0.87 1458 0.91

1600 1141 0.64 1181 0.67 1222 0.70 1261 0.73 1298 0.77 1333 0.81 1367 0.85 1401 0.89 1433 0.93 1465 0.97

1700 1156 0.69 1196 0.72 1235 0.75 1273 0.79 1309 0.83 1344 0.87 1377 0.91 1410 0.96 1442 1.00 1473 1.04

1800 1172 0.75 1211 0.78 1250 0.81 1287 0.85 1322 0.90 1355 0.94 1388 0.98 1420 1.02 1451 1.07 1482 1.11

1900 1190 0.81 1228 0.84 1265 0.88 1301 0.92 1335 0.97 1367 1.01 1399 1.05 1431 1.10 1462 1.14 1492 1.18

2000 1208 0.87 1245 0.91 1281 0.96 1316 1.00 1349 1.04 1380 1.09 1412 1.13 1443 1.18 1473 1.22 1503 1.26

2100 1227 0.94 1263 0.99 1298 1.04 1331 1.08 1363 1.13 1394 1.17 1425 1.22 1455 1.26 1485 1.31 1515 1.35

2200 1246 1.02 1281 1.07 1315 1.12 1347 1.17 1379 1.22 1409 1.26 1439 1.31 1469 1.36 1499 1.40 1529 1.45

2300 1266 1.11 1300 1.16 1333 1.22 1364 1.27 1395 1.32 1424 1.36 1454 1.41 1484 1.46 1513 1.50 1543 1.55

2400 1286 1.20 1319 1.26 1351 1.32 1382 1.38 1411 1.43 1440 1.48 1470 1.52 1499 1.57 1528 1.61 1558 1.66

Page 25


DOWNFLOW

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


1900 510 0.45 544 0.5 579 0.55 614 0.6 649 0.65 684 0.7 718 0.74 752 0.79 784 0.83 812 0.88

2000 526 0.49 560 0.55 595 0.6 629 0.65 663 0.7 697 0.75 730 0.79 763 0.84 794 0.88 820 0.93

2100 542 0.54 576 0.59 610 0.65 644 0.7 678 0.75 711 0.8 743 0.84 775 0.89 804 0.94 830 0.98

2200 560 0.59 593 0.64 627 0.7 660 0.75 693 0.8 725 0.85 757 0.9 787 0.94 814 0.99 840 1.03

2300 578 0.64 610 0.7 644 0.75 676 0.81 709 0.86 740 0.91 770 0.95 799 1 826 1.05 851 1.09

2400 597 0.7 629 0.75 661 0.81 693 0.86 725 0.91 755 0.96 784 1.01 812 1.06 838 1.11 862 1.15

2500 617 0.76 648 0.81 679 0.87 710 0.92 741 0.97 770 1.03 799 1.08 825 1.13 850 1.17 875 1.22

2600 637 0.82 667 0.87 698 0.93 728 0.98 758 1.04 786 1.09 814 1.15 839 1.2 864 1.24 887 1.28

2700 658 0.88 687 0.94 717 1 746 1.05 775 1.11 802 1.16 829 1.22 853 1.27 877 1.31 901 1.36

2800 679 0.95 708 1.01 736 1.07 764 1.12 792 1.18 819 1.24 844 1.3 868 1.35 892 1.39 915 1.43

2900 701 1.02 728 1.08 756 1.14 783 1.2 809 1.26 835 1.32 860 1.38 884 1.43 907 1.47 930 1.52

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


1900 837 0.92 861 0.96 886 1 913 1.04 939 1.07 966 1.11 992 1.16 1017 1.21 1041 1.27 1065 1.33

2000 845 0.97 870 1.01 895 1.05 921 1.09 948 1.12 974 1.17 999 1.22 1023 1.27 1047 1.33 1070 1.39

2100 855 1.02 879 1.06 904 1.1 930 1.14 956 1.18 982 1.22 1006 1.28 1030 1.34 1053 1.4 1075 1.46

2200 865 1.08 889 1.12 914 1.15 940 1.19 966 1.24 990 1.29 1014 1.34 1037 1.41 1059 1.47 1081 1.54

2300 875 1.13 900 1.17 925 1.21 951 1.25 976 1.3 999 1.35 1022 1.41 1044 1.48 1066 1.55 1087 1.62

2400 887 1.19 912 1.23 936 1.27 961 1.32 986 1.37 1009 1.43 1031 1.49 1052 1.57 1073 1.64 1094 1.71

2500 899 1.25 923 1.29 948 1.34 973 1.39 996 1.44 1018 1.51 1039 1.58 1060 1.65 1080 1.73 1101 1.8

2600 912 1.32 936 1.36 960 1.41 984 1.46 1007 1.52 1028 1.59 1049 1.67 1069 1.75 1089 1.82 1109 1.89

2700 925 1.4 949 1.44 973 1.49 996 1.55 1018 1.61 1038 1.69 1058 1.76 1078 1.84 1098 1.92 1118 1.99

2800 939 1.47 962 1.52 985 1.57 1008 1.64 1029 1.71 1049 1.79 1069 1.87 1088 1.94 1107 2.02 1127 2.09

2900 953 1.56 976 1.61 998 1.67 1020 1.73 1041 1.81 1060 1.89 1079 1.98 1098 2.06 1117 2.13 1137 2.21

Page 26


HORIZONTAL

Air Volume (cfm)


0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.9 1.0


1900 485 0.55 516 0.57 549 0.59 583 0.62 618 0.65 654 0.69 689 0.73 724 0.77 758 0.82 790 0.86

2000 499 0.59 531 0.61 563 0.63 597 0.66 631 0.7 666 0.73 701 0.77 734 0.82 767 0.86 798 0.91

2100 514 0.63 546 0.65 578 0.68 611 0.71 645 0.74 679 0.78 712 0.82 745 0.86 777 0.91 806 0.96

2200 530 0.68 562 0.7 594 0.73 627 0.76 660 0.79 693 0.83 725 0.87 757 0.92 787 0.96 816 1.01

2300 548 0.73 579 0.75 610 0.78 643 0.81 675 0.85 707 0.88 738 0.93 769 0.97 798 1.02 826 1.06

2400 566 0.78 596 0.81 628 0.84 659 0.87 691 0.9 722 0.94 752 0.98 782 1.03 810 1.08 837 1.12

2500 585 0.84 615 0.86 645 0.9 676 0.93 707 0.96 737 1 767 1.05 795 1.09 822 1.14 848 1.19

2600 604 0.9 634 0.93 664 0.96 694 0.99 724 1.03 753 1.07 781 1.11 809 1.15 835 1.2 861 1.25

2700 624 0.96 653 0.99 682 1.02 712 1.06 741 1.09 769 1.13 796 1.18 823 1.22 849 1.27 873 1.32

2800 645 1.02 673 1.05 701 1.09 730 1.12 758 1.16 785 1.2 812 1.25 838 1.29 862 1.34 886 1.39

2900 665 1.09 693 1.12 721 1.16 748 1.19 775 1.23 802 1.27 827 1.32 852 1.36 877 1.41 900 1.46

Air Volume (cfm)


1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0


1900 819 0.9 846 0.94 871 0.98 897 1.02 922 1.05 948 1.09 974 1.13 999 1.18 1025 1.23 1050 1.28

2000 826 0.95 852 0.99 877 1.03 902 1.06 928 1.1 953 1.14 979 1.18 1004 1.23 1029 1.28 1054 1.34

2100 834 1 859 1.04 884 1.08 909 1.12 934 1.15 960 1.2 985 1.24 1010 1.29 1034 1.35 1058 1.4

2200 842 1.05 868 1.1 892 1.13 917 1.17 942 1.21 967 1.26 992 1.3 1016 1.36 1040 1.41 1063 1.47

2300 852 1.11 877 1.15 901 1.19 926 1.23 950 1.27 975 1.32 999 1.37 1023 1.42 1046 1.48 1069 1.54

2400 862 1.17 887 1.21 911 1.25 935 1.3 959 1.34 983 1.39 1007 1.44 1030 1.5 1053 1.56 1075 1.62

2500 873 1.23 897 1.28 921 1.32 945 1.36 969 1.41 992 1.46 1016 1.52 1038 1.58 1060 1.64 1082 1.7

2600 885 1.3 909 1.34 932 1.39 955 1.43 979 1.49 1002 1.54 1025 1.6 1047 1.66 1069 1.73 1090 1.79

2700 897 1.37 920 1.41 944 1.46 967 1.51 990 1.57 1012 1.62 1034 1.69 1056 1.75 1077 1.82 1098 1.89

2800 910 1.44 933 1.49 955 1.54 978 1.6 1001 1.65 1023 1.72 1044 1.78 1066 1.85 1086 1.92 1107 1.99

2900 923 1.52 945 1.57 968 1.63 990 1.68 1012 1.75 1034 1.81 1055 1.88 1076 1.95 1096 2.02 1116 2.09

Page 27

BLOWER DATABELT DRIVE KIT SPECIFICATIONS - 036-060

Model No.

Motor HP No. of Speeds

Drive Kits and RPM RangeNominal Maximum A01 A02 A03 A05 A06 A07

036 0.75 0.86 2 low 449-673 high 673-1010

- - - - - - - - - - - - - - -

1 1.15 2 - - - - - - - - - low 598-897 high 897-1346

- - - - - -

048 0.75 0.86 2 - - - low 497-673 high 745-1117

- - - - - - - - - - - -

2 2.3 2 - - - - - - - - - - - - low 714-953 high 1071-1429

- - -

060 1 1.15 2 - - - - - - low 555-833 high 833-1250

- - - - - - - - -

2 2.3 2 - - - - - - - - - - - - - - - low 808-1032 high 1212-1548

BELT DRIVE KIT SPECIFICATIONS - 072Model

No.Motor HP No. of

SpeedsNominal Maximum AA01 AA02 AA03072 1 1.15 1 522-784 - - - - - -

2 2.3 1 - - - 632-875 798-1105

FACTORY INSTALLED OPTIONS/FIELD INSTALLED ACCESSORY AIR RESISTANCE - in. w.g.Air

Volume cfm

Wet Indoor Coil Humiditrol Dehumidification

Coil

Gas HeatingEconomizer

Filters

036 048 060, 072 Medium Heat High Heat MERV 8 MERV

13036-048 MODELS

800 0.01 0.01 - - - 0.00 0.02 0.02 0.04 0.04 0.051000 0.02 0.02 - - - 0.00 0.02 0.02 0.04 0.04 0.071200 0.03 0.04 - - - 0.01 0.02 0.02 0.04 0.04 0.071400 0.04 0.05 - - - 0.02 0.02 0.03 0.04 0.04 0.071600 0.05 0.06 - - - 0.03 0.03 0.04 0.04 0.04 0.071800 0.06 0.07 - - - 0.04 0.04 0.05 0.05 0.04 0.072000 0.08 0.09 - - - 0.04 0.04 0.06 0.05 0.05 0.08

060-072 MODELS1000 - - - - - - 0.02 0.00 0.02 0.02 0.04 0.03 0.051200 - - - - - - 0.04 0.00 0.02 0.02 0.04 0.03 0.071400 - - - - - - 0.05 0.01 0.02 0.03 0.04 0.04 0.071600 - - - - - - 0.07 0.02 0.03 0.04 0.04 0.04 0.071800 - - - - - - 0.08 0.02 0.03 0.05 0.05 0.05 0.072000 - - - - - - 0.10 0.03 0.04 0.06 0.05 0.05 0.072200 - - - - - - 0.11 0.04 0.04 0.07 0.05 0.05 0.082400 - - - - - - 0.13 0.04 0.05 0.08 0.05 0.05 0.082600 - - - - - - 0.15 0.05 0.05 0.09 0.06 0.05 0.082800 - - - - - - 0.16 0.05 0.06 0.10 0.06 0.05 0.083000 - - - - - - 0.18 0.06 0.07 0.11 0.06 0.05 0.08

POWER EXHAUST FAN PERFORMANCE Return Air System Static

Pressure in. w.g.

Air Volume Exhausted cfm

Return Air System Static Pressure in. w.g.

Air Volume Exhausted cfm

036-048 MODELS 060-072 MODELS0.00 2000 0.00 31750.05 1990 0.05 29550.10 1924 0.10 26850.15 1810 0.15 24100.20 1664 0.20 21650.25 1507 0.25 19200.30 1350 0.30 14200.35 1210 0.35 1200

Page 28

LGH/LCH036, 048, 060, 072

TABLE 6MANUFACTURER'S DRIVE COMPONENT NUMBERS

Drive No.

DRIVE COMPONENTS

Motor Pulley Blower Pulley bELT

Supplier No. OEM Part No. Supplier No. OEM Part No. Supplier No. OEM Part No.

A01 1VP34x7/8 31K6901 AK54 x 1 100244-19 A40 100245-17

A02 1VP34x7/8 31K6901 AK49 x 1 100244-18 A39 100245-16

A03 1VP34x7/8 31K6901 AK44 x 1 100244-16 A39 100245-16

A05 1VP34x7/8 31K6901 AK41 x 1 100244-15 A39 100245-16

A06 1VP44x7/8 P-8-1488 AK51 x 1 18L2201 A41 100245-18

A07 1VP50x7/8 P-8-2187 AK54 x 1 100244-19 AX43 73K8201

AA01 1VP34x7/8 31K6901 AK69 x 1 37L4701 AX51 13H0101

AA02 1VP40x7/8 79J0301 BK80H1 100788-03 A53 P-8-4951

AA03 1VP40x7/8 79J0301 AK59 x 1 31K6801 A50 100245-29

AA04 1VP44x7/8 P-8-1488 AK59 x 1 31K6801 AX51 13H0101

A01T2 1VP34x7/8 31K6901 AK54 x 1 100244-19 A41 100245-18

A02T2 1VP34x7/8 31K6901 AK49 x 1 100244-18 A40 100245-17

A03T2 1VP34x7/8 31K6901 AK44 x 1 100244-16 A40 100245-17

A05T2 1VP34x7/8 31K6901 AK41 x 1 100244-15 A41 100245-18

A06T2 1VP44x7/8 P-8-1488 AK51 x 1 18L2201 A41 100245-18

A07T2 1VP50x7/8 P-8-2187 AK54 x 1 100244-19 AX43 73K8201

AA01T2 1VP34x7/8 31K6901 AK69 x 1 37L4701 A50 100245-29

AA02T2 1VP40x7/8 79J0301 BK80H* 100788-03 A52 100245-30

AA03T2 1VP40x7/8 79J0301 AK59 x 1 31K6801 A49 100245-32

AA04T2 1VP44x7/8 P-8-1488 AK59 x 1 31K6801 A50 100245-29

NOTES: 1 Requires split taper bushing, Browning no. H1; OEM no. 100073-04 2 Includes tension assembly, Fenner no. FS0590; OEM no. 101994-02

Cooling Start-Up

A-Operation

1- Initiate first and second stage cooling demands

according to instructions provided with Unit

Controller Installation and Setup Guide. Use the

menu navigation arrows and select button; see

Service - Test.

2- No Economizer Installed in Unit -

A first-stage cooling demand (Y1) will energize the

compressor and blower in low speed along with the

condenser fan. An increased cooling demand (Y2)

will increase the blower and compressor to high

speed.

Units Equipped With Economizer -

When outdoor air is acceptable, a first-stage

cooling demand (Y1) will energize the economizer.

An increased cooling demand (Y2) will energize

the compressor and low speed blower along with

the condenser fan. When outdoor air is not

acceptable unit will operate as though no

economizer is installed.

3- Units contain one refrigerant circuit or stage.

4- Unit is charged with R-410A refrigerant. See unit

rating plate for correct amount of charge.

5- Refer to Cooling Operation and Adjustment section for

proper method to check refrigerant charge.

B-Three Phase Scroll Compressor Voltage Phasing

Three phase scroll compressors must be phased

sequentially to ensure correct compressor and blower

rotation and operation. Compressor and blower are

wired in phase at the factory. Power wires are

color-coded as follows: line 1-red, line 2-yellow, line

3-blue.

1- Observe suction and discharge pressures and

blower rotation on unit start-up.

2- Suction pressure must drop, discharge pressure

must rise, and blower rotation must match rotation

marking.

If pressure differential is not observed or blower rotation is

not correct:

3- Disconnect all remote electrical power supplies.

4- Reverse any two field-installed wires connected to

the line side of K1 contactor. Do not reverse wires at

blower contactor.

5- Make sure the connections are tight.

Discharge and suction pressures should operate at

their normal start‐up ranges.

Page 29

LGH/LCH036, 048, 060, 072

C-Refrigerant Charge and Check - All-Aluminum Coil

WARNING-Do not exceed nameplate charge under

any condition.

This unit is factory charged and should require no further

adjustment. If the system requires additional refrigerant,

reclaim the charge, evacuate the system, and add

required nameplate charge.

NOTE - System charging is not recommended below

60�F (15�C). In temperatures below 60�F (15�C), the

charge must be weighed into the system.

If weighing facilities are not available, or to check the

charge, use the following procedure:

IMPORTANT - Charge unit in standard cooling mode

high stage only.

1- Make sure outdoor coil is clean. Attach gauge

manifolds and operate unit at full CFM in cooling mode

with economizer disabled until system stabilizes

(approximately five minutes). Make sure all outdoor air

dampers are closed.

2- Compare the normal operating pressures (see tables

7 - 13) to the pressures obtained from the gauges.

Check unit components if there are significant

differences.

3- Measure the outdoor ambient temperature and the

suction pressure. Refer to the appropriate circuit

charging curve to determine a target liquid

temperature.

Note - Pressures are listed for sea level applications.

4- Use the same thermometer to accurately measure the

liquid temperature (in the outdoor section).

� If measured liquid temperature is higher than

the target liquid temperature, add refrigerant to

the system.

� If measured liquid temperature is lower than

the target liquid temperature, recover some

refrigerant from the system.

5- Add or remove charge in increments. Allow the

system to stabilize each time refrigerant is added or

removed.

6- Continue the process until measured liquid

temperature agrees with the target liquid

temperature. Do not go below the target liquid

temperature when adjusting charge. Note that

suction pressure can change as charge is adjusted.

7- Example LGH/LCH036H: At 95°F outdoor ambient

and a measured suction pressure of 130psig, the

target liquid temperature is 98°F. For a measured

liquid temperature of 106°F, add charge in

increments until measured liquid temperature agrees

with the target liquid temperature.

TABLE 7LGH/LCH036S NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

113 235 117 274 116 329 118 379 121 438 124 497

121 239 122 284 125 327 127 378 129 437 132 506

138 248 141 288 144 329 147 375 151 427 151 497

157 264 160 297 163 339 167 387 172 437 175 492

TABLE 8LGH/LCH036H NORMAL OPERATING PRESSURES - ALL-ALUMINUM COIL


65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

115 242 116 283 119 328 120 382 122 444 124 535

121 245 124 284 126 329 128 379 129 447 131 528

138 255 143 294 146 340 148 389 151 441 152 515

155 267 160 305 165 349 168 399 171 454 175 514

Page 30

LGH/LCH036, 048, 060, 072



65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

117 249 120 287 122 330 124 381 126 435 129 493

124 253 128 291 131 332 133 386 135 441 138 499

141 272 145 306 149 345 152 393 155 448 157 515

160 300 163 332 167 367 172 415 176 465 179 520



65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

116 251 119 289 121 331 124 377 126 429 129 488

123 256 127 293 130 335 132 382 135 435 137 494

139 277 143 308 148 348 151 395 155 447 158 503

156 306 161 338 165 373 170 416 174 468 178 523



65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

114 249 116 287 119 330 121 376 123 425 127 482

122 250 124 290 127 333 129 379 132 435 135 492

140 258 143 293 145 343 148 392 151 449 154 508

158 274 162 311 166 356 169 398 173 462 175 520



65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

113 240 116 285 117 329 119 383 120 454 122 533

122 245 125 285 127 322 129 376 130 431 132 516

141 254 143 293 146 334 149 382 151 436 153 498

159 269 163 305 167 351 169 395 172 448 176 507



65 F 75 F 85 F 95 F 105 F 115 F

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

Suct(psig)

Disc(psig)

113 261 115 300 116 347 118 402 119 492 123 512

122 266 124 307 126 349 126 402 128 467 132 518

140 277 143 316 145 360 147 411 149 472 151 540

159 291 161 329 164 375 168 423 172 478 174 537

Page 31

LGH/LCH036, 048, 060, 072

LGH/LCH036S CHARGING CURVE - ALL-ALUMINUM COIL

60

70

80

90

100

110

120

130

110 120 130 140 150 160 170 180

Outdoor Temperature (°F)

Suction Pressure (psig)

105°

95°

115°

85°

75°

65°

60

70

80

90

100

110

120

130

110 120 130 140 150 160


170 180Suction Pressure (psig)

105°

95°

115°

85°

75°

65°

LGH/LCH036H CHARGING CURVE - ALL-ALUMINUM COIL

Page 32

LGH/LCH036, 048, 060, 072



60

70

80

90

100

110

120

130

110 120 130 140 150 160


170 180

105°

95°

115°

85°

75°

65°



60

70

80

90

100

110

120

130

110 120 130 140 150 160


170 180

105°

95°

115°

85°

75°

65°

Page 33

LGH/LCH036, 048, 060, 072


60

70

80

90

100

110

120

130

110 120 130 140 150 160



105°

95°

115°

85°

75°

65°

60

70

80

90

100

110

120

130

110 120 130 140 150 160



105°

95°

115°

85°

75°

65°


Page 34

LGH/LCH036, 048, 060, 072



60

70

80

90

100

110

120

130

110 120 130 140 150 160


170 180

105°

95°

115°

85°

75°

65°

Page 35

LGH/LCH036, 048, 060, 072

C-Refrigerant Charge and Check - Fin/Tube Coil

WARNING-Do not exceed nameplate charge underany condition.

This unit is factory charged and should require no further

adjustment. If the system requires additional refrigerant,

reclaim the charge, evacuate the system, and add

required nameplate charge.

NOTE - System charging is not recommended below

60°F (15°C). In temperatures below 60°F (15°C) , the

charge must be weighed into the system.

If weighing facilities are not available, or to check the

charge, use the following procedure:

1- Attach gauge manifolds and operate unit in cooling

mode on HIGH SPEED with economizer disabled

until system stabilizes (approximately five minutes).

Make sure outdoor air dampers are closed.

2- Use a thermometer to accurately measure the

outdoor ambient temperature.

3- Apply the outdoor temperature to tables 14 through

27 to determine normal operating pressures.

Pressures are listed for sea level applications at 80°F

dry bulb and 67°F wet bulb return air.

4- Compare the normal operating pressures to the

pressures obtained from the gauges. Minor

variations in these pressures may be expected due to

differences in installations. Significant differences

could mean that the system is not properly charged

or that a problem exists with some component in the

system. Correct any system problems before

proceeding.

5- If discharge pressure is high, remove refrigerant from

the system. If discharge pressure is low, add

refrigerant to the system.

� Add or remove charge in increments.

� Allow the system to stabilize each time

refrigerant is added or removed.

6- Use the following approach method along with the

normal operating pressures to confirm readings.

TABLE 14LG/LC 036S NORMAL OPERATING PRESSURES

Outdoor CoilEntering Air Temp

Discharge+10 psig

Suction + 5psig

65� F 267 138

75� F 305 140

85� F 350 142

95� F 398 146

105� F 451 147

115� F 507 150

TABLE 15LG/LC 036S REHEAT NORMAL OPERATING

PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 261 138

75� F 300 141

85� F 342 144

95� F 387 148

105� F 437 150

115� F 490 153

TABLE 16LG/LC 036H NORMAL OPERATING PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 262 142

75� F 293 145

85� F 345 147

95� F 389 149

105� F 439 152

115� F 493 155

TABLE 17LG/LC 036H REHEAT NORMAL OPERATING

PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 262 139

75� F 299 141

85� F 342 144

95� F 388 147

105� F 437 150

115� F 491 153



Discharge+10 psig

Suction + 5psig

65� F 259 129

75� F 299 138

85� F 343 146

95� F 390 148

105� F 442 157

115� F 497 160


PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 259 139

75� F 298 143

85� F 340 145

95� F 388 148

105� F 439 151

115� F 495 154

Page 36

LGH/LCH036, 048, 060, 072



Discharge+10 psig

Suction + 5psig

65� F 256 122

75� F 299 132

85� F 342 139

95� F 388 145

105� F 437 150

115� F 493 153


PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 261 138

75� F 299 142

85� F 342 144

95� F 389 147

105� F 441 150

115� F 497 153



Discharge+10 psig

Suction + 5psig

65� F 264 136

75� F 303 138

85� F 346 140

95� F 395 142

105� F 445 145

115� F 500 148


PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 267 135

75� F 307 137

85� F 350 139

95� F 399 142

105� F 451 144

115� F 507 147



Discharge+10 psig

Suction + 5psig

65� F 253 136

75� F 291 137

85� F 334 139

95� F 380 142

105� F 427 145

115� F 479 148


PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 256 136

75� F 295 138

85� F 337 140

95� F 384 143

105� F 432 146

115� F 488 147



Discharge+10 psig

Suction + 5psig

65� F 271 136

75� F 312 139

85� F 357 141

95� F 405 144

105� F 458 147

115� F 515 151


PRESSURES


Discharge+10 psig

Suction + 5psig

65� F 272 137

75� F 312 139

85� F 356 140

95� F 403 142

105� F 453 145

115� F 507 148

D-Charge Verification - Approach Method - AHRI

TESTING (Fin/Tube Coil Continued)

1- Using the same thermometer, compare liquid

temperature to outdoor ambient temperature.

Approach Temperature = Liquid temperature (at

condenser outlet) minus ambient temperature.

2- Approach temperature should match values in table

28. An approach temperature greater than value

shown indicates an undercharge. An approach

temperature less than value shown indicates an

overcharge.

3- The approach method is not valid for grossly over or

undercharged systems. Use tables 14 through 27 as

a guide for typical operating pressures.

Page 37

LGH/LCH036, 048, 060, 072

TABLE 28APPROACH TEMPERATURE

LGH/LCH Unit Liquid Temp. Minus Ambient Temp.

036S & H Std.036S & H Reheat048H Std.060S & H Reheat060H Std.072H Std.

6°F + 1 (3.3°C + 0.5)

048H Reheat072H Reheat

7°F + 1 (3.9°C + 0.5)

048S Std.060S Std.

8°F + 1 (4.4°C + 0.5)

048S Reheat 9°F + 1 (5.0°C + 0.5)

E-Compressor Controls

See unit wiring diagram to determine which controls are

used on each unit. Optional controls are identified on

wiring diagrams by arrows at junction points.

1- High Pressure Switch (S4)

The compressor circuit is protected by a high

pressure switch which opens at 640 psig + 10 psig

(4413 kPa + 70 kPa) and automatically resets at 475

psig + 20 psig (3275kPa + 138 kPa).

2- Low Pressure Switch (S87)

The compressor circuit is protected by a loss of

charge switch. Switch opens at 40 psig + 5 psig (276

+ 34 kPa) and automatically resets at 90 psig + 5

psig (621 kPa + 34 kPa).

3- Freezestat (S49)

The compressor is protected by a freezestat located

on the indoor coil. The freezestat opens at 29�F+3

(-2�C+2) and closes at 58�F+4 (14�C+2).

4- Compressor Crankcase Heater (HR1)

Crankcase heater must be energized at all times to

prevent compressor damage due to refrigerant

migration. Energize crankcase heater 24 hours before

unit start-up by setting thermostat so that there is no

cooling demand (to prevent compressor from cycling)

and apply power to unit.

5- Low Ambient Pressure Switch (S11)

Switch maintains adequate discharge pressure by

de-energizing condenser fan when liquid pressure

falls below 240 psig +10 (1655 kPa+69). S11 is

installed in the liquid line. Switch closes to energize

condenser fan when pressure rises to 450 psig +10

(3103kPa + 69).

6- Discharge Line Thermostat (S40)

3 through 5 Ton Units Only

Switch opens when discharge line temperature

reaches 94�F+5 (34�C+3) and closes when

temperature falls below 74�F+5 (23�C+3). Prevents

crankcase heater operation in warm weather.

7- High Ambient Pressure Switch (S16)

Switch improves high ambient operation by

activating the TXV assist circuit. Switch closes at

550psig + 10 (3792kPa + 70kPa) and automatically

resets at 400 PSIG (2758kPa + 70kPa).

Page 38

LGH/LCH036, 048, 060, 072

Gas Heat Start-Up (Gas Units)

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNINGElectric shock hazard. Can cause injuryor death. Do not use this unit if any parthas been under water. Immediately calla qualified service technician to inspectthe unit and to replace any part of thecontrol system and any gas controlwhich has been under water.

WARNINGDanger of explosion. Can cause injuryor product or property damage. If overheating occurs or if gas supply fails toshut off, shut off the manual gas valveto the appliance before shutting offelectrical supply.

WARNINGElectric shock hazard. Can causeinjury or death. Before attempting toperform any service or maintenance,turn the electrical power to unit OFF atdisconnect switch(es). Unit may havemultiple power supplies.

WARNINGSMOKE POTENTIAL

The heat exchanger in this unit could be a source ofsmoke on initial firing. Take precautions with respect to building occupants and property. Vent initial supply air outside when possible.

BEFORE LIGHTING smell all around the appliance area

for gas. Be sure to smell next to the floor because some

gas is heavier than air and will settle on the floor.

The gas valve may be equipped with either a gas control

lever or gas control knob. Use only your hand to push

the lever or turn the gas control knob. Never use tools. If

the the lever will not move or the knob will not push in or

turn by hand, do not try to repair it. Call a qualified

service technician. Force or attempted repair may

result in a fire or explosion.

WARNINGDanger of explosion. Can cause injury ordeath. Do not attempt to light manually.Unit has a direct spark ignition system.

This unit is equipped with an automatic spark ignition

system. There is no pilot. In case of a safety shutdown,

move thermostat switch to OFF and return the thermostat

switch to HEAT to reset ignition control.

A-Placing Unit In Operation

WARNINGDanger of explosion and fire. Can causeinjury or product or property damage.You must follow these instructionsexactly.

Gas Valve Operation (figure 25 and 26)

1- Set thermostat to lowest setting.

2- Turn off all electrical power to appliance.

3- This appliance is equipped with an ignition device

which automatically lights the burner. Do not try to

light the burner by hand.

4- Open or remove the heat section access panel.

GAS VALVE SHOWN IN ON POSITION

Honeywell VR8205 Gas Valve with ON/OFF Lever

Single-Stage

MANIFOLDPRESSURE

OUTLET

INLETPRESSURE

PORT

MANIFOLDPRESSURE

ADJUSTMENTSCREW

FIGURE 25

Honeywell VR8205Q/VR8305Q Series Gas Valve

Two-Stage

Gas valve knob is shown in OFF position.

FIGURE 26

LOW FIREADJUSTMENT

HIGH FIREADJUSTMENT

INLETPRESSURE

TAP

MANIFOLDPRESSURE

TAP

Page 39

LGH/LCH036, 048, 060, 072

5- Honeywell VR8205 Gas Valve with ON/OFF Lever -

Switch gas valve lever to OFF. See figure 25.

Honeywell VR8205/8305 Gas Valve with Knob - Turn

knob on gas valve clockwise to OFF. Do not force.

See figure 26.

6- Wait five (5) minutes to clear out any gas. If you then

smell gas, STOP! Immediately call your

gas supplier from a neighbor's phone. Follow the gas

supplier's instructions. If you do not smell gas, go to

the next step.


Switch gas valve lever to ON. See figure 25.

Honeywell VR8205/VR8305 Gas Valve with Knob -

Turn knob on gas valve counterclockwise to ON.

Do not force. See figure 26.

8- Close or replace the heat section access panel.

9- Turn on all electrical power to appliance.

10- Set thermostat to desired setting.

NOTE - When unit is initially started, steps 1 through 9

may need to be repeated to purge air from gas line.

11- The ignition sequence will start.

12- If the furnace does not light the first time (gas line not

fully purged), it will attempt up to two more ignitions

before locking out.

13- If lockout occurs, repeat steps 1 through 10.

14- If the appliance will not operate, follow the

instructions “Turning Off Gas to Appliance” and call

your service technician or gas supplier.

Turning Off Gas to Unit

1- If using an electromechanical thermostat, set to the

lowest setting.

2- Before performing any service, turn off all electrical

power to the appliance.



Switch gas valve lever to OFF.

Honeywell VR8205/VR8305 Gas Valve with Knob -

Turn knob on gas valve clockwise to OFF. Do not

force.



Heating Operation and Adjustments

(Gas Units)

A-Heating Sequence of Operation

1- On a heating demand the combustion air inducer

starts immediately.

2- Combustion air pressure switch proves inducer

operation. After a 30-second pre-purge, power is

allowed to ignition control. Switch is factory set and

requires no adjustment.

3- Spark ignitor energizes and gas valve solenoid

opens.

4- Spark ignites gas, ignition sensor proves the flame

and combustion continues.

5- If flame is not detected after 8 seconds, the ignition

control will repeat steps 3 and 4 two more times. The

ignition control will wait 5 minutes before the ignition

attempt recycles.

B-Ignition Control Diagnostic LED's

TABLE 29IGNITION CONTROL HEARTBEAT LED STATUS

LEDFlashes

Indicates

Steady Off No power or control hardware fault.

Steady On Power applied. Control OK.

3 Flashes Ignition lockout from too many trials.

4 FlashesIgnition lockout from too many flamelosses within single call for heat.

5 Flashes Control hardware fault detected.

C-Limit Controls

Limit controls are factory-set and are not adjustable. The

primary limit is located to the right of the combustion air

inducer. See figure 35.

D-Heating Adjustment

Main burners are factory-set and do not require adjustment.

The following manifold pressures are listed on the gas valve.

Natural Gas Units - Low Fire - 1.7” w.c.

Natural Gas Units - High Fire - 3.5” w.c.

LP Gas Units - Low Fire - 5.1” w.c.

LP Gas Units - High Fire - 10.5” w.c.

Electric Heat Start-Up (LCH Units)

Optional electric heat will stage on and cycle with

thermostat demand. See electric heat wiring diagram on

unit for sequence of operation.

Page 40

LGH/LCH036, 048, 060, 072

VCB Start-Up

Units equipped with an A184 ventilation control board

(VCB) allow the installer to enter the design-specified

supply air CFM into the Unit Controller. In addition, the

outdoor air flow (minimum damper position) can be

entered. These air volumes are typically adjusted by

taking measurements and adjusting settings.

The factory-installed VCB option is available on units

equipped with a direct drive blower and an economizer.

The VCB is located on the Unit Controller. See figure 27.

The economizer is equipped with a PT5 pressure

transducer which provides feedback for damper

minimum position. See figure 28 for PT5 location. Refer to

the economizer installation instructions and Unit

Controller manual for additional economizer set-up.

Note - Modulation of dampers for free cooling does not

change. The outdoor air flow setting determines minimum

damper position instead of adjusting a potentiometer.

ADesign Specifications

Use table 30 to fill in the field-provided,

design-specified supply air CFM and minimum required

outdoor/fresh air CFM.

TABLE 30

FIELD-PROVIDED DESIGN SPECIFICATIONS

Supply Air CFM

Heating CFM

Cooling High CFM

Cooling Low CFM

Ventilation CFM

Economizer Minimum Position

Outdoor Airflow CFM

A184 VENTILATION CONTROL BOARD

VCB BOARD

FIGURE 27

UNIT CONTROLLER

PT5 PRESSURE TRANSDUCER

PRESSURETRANSDUCER

FIGURE 28

ECONOMIZER

BEnter Supply Air CFM Into Unit Controller

Use the following menu path to enter each supply air CFM

into the Unit Controller. Make sure supply air CFM is

within limitations shown in table 31. Refer to the Unit

Controller manual provided with unit.

CAUTIONThe BLOWER CALIBRATION process starts the in

door blower at operational speeds and moves the

economizer damper blades. Before starting this pro

cess, replace any access panels and close all unit

doors except compressor compartment door.

Settings - Control - MSAV - Blower - Heating CFM

(enter value) - Cooling High CFM (enter value) -

Cooling Low CFM (enter value) - Ventilation CFM

(enter value) - Start Blower To Calibrate (yes/no).

Select YES to start calibration. The blower calibration

status is displayed as a % complete. Upon successful

completion, the Unit Controller will display

CALIBRATE COMPLETE, save the entered values

and revert to the MSAV menu.

Select NO and the Unit Controller will display an option to

SAVE SETTINGS (YES / NO). Select YES to save

settings without performing the calibration process.

Select NO to exit the menu without saving entered values.

The display reverts to MSAV menu with either selection.

Page 41

LGH/LCH036, 048, 060, 072

TABLE 31

MINIMUM / MAXIMUM CFM

UNIT SIZE 036 048 060

Cooling High Speed &

Heating Maximum

(480 CFM/ton)

1440 1920 2400

Cooling High Speed

Minimum (280 CFM/ton)840 1120 1400

Cooling Low Minimum CFM

(220 CFM/ton)660 880 1100

Ventilation Minimum CFM

(150 CFM/ton)450 600 750

Standard Gas Heat Minim

um CFM (S,W)970 970 970

Medium Gas Heat Minimum

CFM (M, Q, U, Y)1120 1120 1120

High Gas Heat Minimum

CFM (H, T, X, Z)1310 1310 1310

Electric Heat minimum CFM 1080 1280 1600

Outdoor Airflow Maximum

CFM450 600 750

CEnter Outdoor Airflow Design Specifications Into

Unit Controller

Use the following menu path to enter the outdoor airflow

CFM (replaces minimum damper position set point) into

the Unit Controller. Make sure outdoor airflow CFM is

within limitations shown in table 31. Refer to the Unit

Controller manual provided with unit.

Settings Control MSAV Damper Outdoor Airflow

(enter value) Save Settings (yes / no)

After a YES or NO selection, display reverts back to

MSAV menu.

DOperation

1- After calibration, the indoor blower will supply the

CFM specified based on the thermostat demand

signal received by the Unit Controller:

G – Ventilation CFM

W – Heating CFM

Y1 – Cooling Low CFM

Y2 – Cooling High CFM

2- The Unit Controller, using input from PT5 and the

entered outdoor air flow CFM, will open the fresh

air dampers to minimum position. In addition, the

Unit Controller must have an occupied (OCP)

thermostat demand.

Page 42

LGH/LCH036, 048, 060, 072

SCR Electric Heat Controller (LCH Units)

Optional factory-installed SCR (A38) will provide small

amounts of power to the electric heat elements to

efficiently maintain warm duct air temperatures when

there is no heating demand. The SCR maintains duct

air temperature based on input from a field-provided

and installed thermostat (A104) and duct sensor

(RT20). SCR is located in the compressor section on

the left wall. Use only with a thermostat or Novar

control system.

Use the instructions provided with the thermostat to set

DIP switches as follows: S1 On, S2 Off, S3 Off. Use the

instructions provided with the duct sensor to install sensor

away from electric element radiant heat and in a location

where discharge air is a mixed average temperature.

Once power is supplied to unit, zero SCR as follows:

1- Adjust thermostat (A104) to minimum position.

2- Use a small screwdriver to slowly turn the ZERO

potentiometer on the SCR until the LED turns solid red.

3- Very slowly adjust the potentiometer the opposite

direction until the LED turns off.

Hot Gas Reheat Start-Up And Operation

General

Hot gas reheat units provide a dehumidifying mode of

operation. These units contain a reheat coil adjacent to

and downstream of the evaporator coil. Reheat coil

solenoid valve, L14, routes hot discharge gas from the

compressor to the reheat coil. Return air pulled across

the evaporator coil is cooled and dehumidified; the

reheat coil adds heat to supply air. See figure 29 for

reheat refrigerant routing and figure 30 for standard

cooling refrigerant routing.

L14 Reheat Coil Solenoid Valve

When Unit Controller input (Unit Controller J298-5 or

J299-8) indicates room conditions require

dehumidification, L14 reheat valve is energized (Unit

Controller P269-3) and refrigerant is routed to the

reheat coil.

Reheat Setpoint

Reheat is factory-set to energize when indoor relative

humidity rises above 60% (default). The reheat setpoint

can be adjusted by changing Unit Controller Settings -

Control menu. A setting of 100% will operate reheat from

an energy management system digital output. The reheat

setpoint can also be adjusted using an optional Network

Control Panel (NCP).

Reheat will terminate when the indoor relative humidity

falls 3% (57% default) or the digital output de-energizes.

The reheat deadband can be adjusted at Settings -

Control menu.

REHEAT MODE REFRIGERANT ROUTING

REHEATCOIL

EVAPORATOR

REHEATVALVE

RETURNAIR

CONDENSERCOIL

OUTDOORAIR

COMPRESSOR

SUPPLYAIR

CHECKVALVE

EXPANSIONVALVE

FIGURE 29

COIL

Page 43

LGH/LCH036, 048, 060, 072

COOLING MODE REFRIGERANT ROUTING

REHEATCOIL

EVAPORATOR

REHEATVALVE

RETURNAIR

CONDENSERCOIL

OUTDOORAIR

COMPRESSOR

SUPPLYAIR

CHECKVALVE

EXPANSIONVALVE

FIGURE 30

COIL

Check-Out

Test reheat operation using the following procedure.

1- Make sure reheat is wired as shown in wiring section.

2- Make sure unit is in local thermostat mode.

3- Select Unit Controller Service - Test.

The blower and compressor 1 (reheat) should be

operating. Reheat mode will be appear on the Unit

Controller display.

4- Deselect Unit Controller Service - Test.

Compressor 1 (reheat) and blower should de-energize.

Default Reheat Operation

During reheat mode free cooling is locked out.

No Y1 demand but a call for dehumidification:

Compressor is operating, blower is on, and the reheat

valve is energized.

Y1 demand:


valve is energized.

Y2 demand:


valve is de-energized.

Service

The unit should be inspected once a year by a qualified

service technician.

CAUTIONLabel all wires prior to disconnection when servicing controls. Wiring errors can cause improper anddangerous operation. Verify proper operation afterservicing.

WARNINGThe State of California has determined that thisproduct may contain or produce a chemical orchemicals, in very low doses, which may cause serious illness or death. It may also cause cancer,birth defects, or reproductive harm.

A-Filters

Units are equipped with temporary filters which must be

replaced prior to building occupation. See table 32 for

correct filter size. Refer to local codes or appropriate

jurisdiction for approved filters.

Page 44

LGH/LCH036, 048, 060, 072

WARNINGUnits are shipped from the factory with temporaryfilters. Replace filters before building is occupied.Damage to unit could result if filters are not replaced with approved filters. Refer to appropriatecodes.

Approved filters should be checked monthly and

replaced when necessary. Take note of air flow direction

marking on filter frame when reinstalling filters. See

figure 31.

TABLE 32

UNIT FILTERS

Unit Qty Filter Size - inches (mm)

036, 048 4 16 X 20 X 2 (406 X 508 X 51)

060, 072 4 20 X 20 X 2 (508 X 508 X 51)

NOTE-Filters must be U.L.C. certified or equivalent for

use in Canada.

FIGURE 31

REMOVE FILTERS

PULL TOREMOVEFILTERS

B-Lubrication

All motors are lubricated at the factory. No further

lubrication is required.

C-Burners (Gas Units)

Periodically examine burner flames for proper

appearance during the heating season. Before each

heating season examine the burners for any deposits or

blockage which may have occurred.

Clean burners as follows:

1- Turn off both electrical power and gas supply to unit.

2- Remove burner compartment access panel.

3- Remove top burner box panel.

4- Remove two screws securing burners to burner

support and lift the burners from the orifices. See

figure 32. Clean as necessary.

FIGURE 32

BURNER BOX ASSEMBLY

GAS VALVE

GAS

MANIFOLD

FLAME

SENSOR

BURNERS

IGNITOR

5- Locate the ignitor under the right burner. Check

ignitor spark gap with appropriately sized twist drills

or feeler gauges. See figure 33.

FIGURE 33

IGNITOR

SPARK GAP

SHOULD BE 1/8”

(3mm)

6- Replace burners and screws securing burner. See

figure 34.

Page 45

LGH/LCH036, 048, 060, 072

WARNINGDanger of explosion. Can cause injury ordeath. Do not overtighten main burnermounting screws. Snug tighten only.

7- Replace access panel.

8- Restore electrical power and gas supply. Follow

lighting instructions attached to unit and use

inspection port in access panel to check flame.

FIGURE 34

BURNER ORIENTATION

150,000 BTUH - 7 BURNERS



SENSOR IGNITOR

SENSOR IGNITOR

SENSOR IGNITOR

D-Combustion Air Inducer (Gas Units)

A combustion air proving switch checks combustion air

inducer operation before allowing power to the gas

controller. Gas controller will not operate if inducer is

obstructed.

Under normal operating conditions, the combustion air

inducer wheel should be checked and cleaned prior to the

heating season. However, it should be examined

periodically during the heating season to establish an

ideal cleaning schedule.

Clean combustion air inducer as follows:

1- Shut off power supply and gas to unit.

2- Remove the mullion on the right side of the heat

section.

3- Disconnect pressure switch air tubing from

combustion air inducer port.

4- Remove and retain screws securing combustion

air inducer to flue box. Remove vent connector.

See figure 35.

5- Clean inducer wheel blades with a small brush and

wipe off any dust from housing. Take care not to

damage exposed fan blades. Clean accumulated

dust from front of flue box cover.

HEAT EXCHANGER ASSEMBLY

FIGURE 35

BURNER


VENTCONNECTOR

GAS VALVE

HEATEXCHANGER

TUBE

PRIMARYLIMIT

ROLLOUTSWITCH

FLUE BOXCOVER

6- Return combustion air inducer motor and vent

connector to original location and secure with

retained screws. It is recommended that gaskets be

replaced during reassembly.

7- Replace mullion.

8- Clean combustion air inlet louvers on heat access

panel using a small brush.

E-Flue Box (Gas Units)

Remove flue box cover only when necessary for

equipment repair. Clean inside of flue box cover and heat

exchanger tubes with a wire brush when flue box cover

has to be removed. Install a new flue box cover gasket

and replace cover. Make sure edges around flue box

cover are tightly sealed.

F-Evaporator Coil

Inspect and clean coil at beginning of each cooling season.

Clean using mild detergent or commercial coil cleaner.

Flush coil and condensate drain with water taking care not

to get insulation, filters and return air ducts wet.

Page 46

LGH/LCH036, 048, 060, 072

G-Condenser Coil

All-Aluminum Coils -

Clean condenser coil annually with water and inspect

monthly during the cooling season.

Clean the all-aluminum coil by spraying the coil steadily

and uniformly from top to bottom. Do not exceed 900 psi

or a 45� angle; nozzle must be at least 12 inches from the

coil face. Take care not to fracture the braze between the

fins and refrigerant tubes. Reduce pressure and work

cautiously to prevent damage.

Fin/Tube Coils -

Clean condenser coil annually with detergent or

commercial coil cleaner and inspect monthly during the

cooling season.

Condenser coils are made of single and two formed slabs.

On units with two slabs, dirt and debris may become

trapped between the slabs. To clean between slabs,

carefully separate coil slabs and wash them thoroughly.

See figure 36. Flush coils with water following cleaning.

Note - Remove all screws and gaskets prior to cleaning

procedure and replace upon completion.

H-Supply Air Blower Wheel

Annually inspect supply air blower wheel for accumulated

dirt or dust. Turn off power before attempting to remove

access panel or to clean blower wheel.

TOP VIEW

CONDENSERCOILS

BLOWER

CONDENSER ACCESS PANEL

FIGURE 36

ENDPLATE IS SECUREDTO MULLION

1- Remove unit top panel and condenser section access

panel.

2- Remove screws securing coil end plate to mullion.

3- Remove wire ties connecting coils slabs and separate

slabs 3-4” (76-102mm).

4- Clean coils with detergent or commercial coil cleaner.

5- Rinse thoroughly with water and reassemble. Use

field-provided wire ties to connect coil slabs.

CLEAN CONDENSER COIL - UNITS WITH FIN/TUBE COILS

SUPPLYAIR

12/12

��506372-01

��

LGH036, 048 060, 072

LGH092, 102, 120, 150

LGH156, 180, 210, 240, 300S

LGH242, 300H, 360

(3, 4, 5 and 6 Tons)

(7-1/2, 8‐1/2, 10 and 12 Tons)

(13, 15, 17-1/2, 20 and 25 Tons)

(20, 25 and 30 Tons)

2012

Litho U.S.A.

506372-0112/2012Supersedes11/2011

WHAT TO DO IF YOU SMELL GAS:

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in serious injurydeath or property damage.

WARNING

Do not store or use gasoline or otherflammable vapors and liquids in thevicinity of this or any other appliance.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

� Do not try to light any appliance.

� Do not touch any electrical switch; do notuse any phone in your building.

� Immediately call your gas supplier from aneighbor's phone. Follow the gas supplier'sinstructions.

� If you cannot reach your gas supplier, callthe fire department.

� Extinguish any open flames.

ROOFTOPUNITS

READ ALL INSTRUCTIONS IN THIS MANUALAND RETAIN FOR FUTURE REFERENCE

See unit nameplate for manufacturerand address.

FBR113270

� Leave the building immediately.

33

33

LLEENNOOXXNNLLEENNOOXXNN

Page 2506372-01 12/2012

LGH036, 048, 060, & 072 Parts Arrangement

LLENOXN

LENOXN

LENOXN

EVAPORATORCOIL

CONDENSERFAN

CONDENSERCOIL

COMPRESSOR

CONDENSATEDRAIN

FILTERS (4)

036, 048:16 X 20 X 2”060, 072: 20 X 20 X 2”


GAS VALVEBURNERS


BLOWERMOTOR

(DIRECT DRIVE SHOWN)

TXV

UNITCONTROLLER

REHEAT COIL(OPTIONAL)

BLOWERCOIL

GUARDS(OPTIONAL)

LGH092, 102, 120, & 150 Parts Arrangement

UNITCONTROLLER

EVAPORATORCOIL

CONDENSERFANS

CONDENSERCOILS

COMPRESSORS

CONDENSATEDRAIN

FILTERS(FOUR - 20 X 25 X 2”)


BLOWER

BLOWERMOTOR

GAS VALVE

BURNERS


REHEAT COIL(Hot Gas Reheat

Units Only)

DISCONNECT /CIRCUIT BREAKER

(FACTORY OR FIELDINSTALLED OPTION)

33

33

LLEENNOOXXNNLLEENNOOXXNN

BLOWER

Page 3LGH036-360 User's

LGH156, 180, 210, 240, 300S Parts Arrangement

EVAPORATORCOIL


CONDENSERFANS

(3 FANS ON 156UNITS; 6 FANSON 210, 240, &

300S UNITS

CONDENSERCOILS (RIGHT COIL

IS VERTICAL ON156 UNITS)

COMPRESSORS(4 ON 240 & 300S UNITS)

GAS VALVE BURNERS

BLOWERS

CONDENSATEDRAIN

FILTERS(SIX - 24 X 24 X 2”)ECONOMIZER

DAMPERS (OPTIONAL)

UNITCONTROLLER

DISCONNECT(Factory-installed option)

LGH242, 300H, 360 Parts Arrangement

BURNERSCOMPRESSORS


EVAPORATORCOIL

BLOWER MOTOR

CONDENSER FANS(6)

CONDENSERCOILS

HEATEXCHANGER TUBES

BLOWERS

CONDENSATEDRAIN

FILTERS(TWELVE - 20 X 20 X 2”)ECONOMIZER

DAMPERS (OPTIONAL)

CONTROL BOX

115V GFCI OUTLET(Factory-installed option)

DISCONNECT(Factory-installed option)

Page 4506372-01 12/2012

Safety

1 - Keep unit area clear and free of combustible

materials, gasoline and other flammable vapors and

liquids.

2 - Do not obstruct air flow to unit. Unit must receive

an unobstructed flow of combustion and

ventilating air.

WARNINGDanger of explosion and fire. Failure tofollow safety warnings exactly couldresult in dangerous operation, seriousinjury, death or property damage.

WARNINGImproper installation, adjustment, alteration, service or maintenance can cause property damage,personal injury or loss of life. Installation and service must be performed by a qualified installer, service agency or the gas supplier

WARNINGElectric shock hazard. Can cause injuryor death. Before attempting to performany service or maintenance, turn theelectrical power to unit OFF at disconnect switch(es). Unit may have multiplepower supplies.

WARNINGProduct contains fiberglass wool.

Disturbing the insulation in this product duringinstallation, maintenance, or repair will expose youto fiberglass wool. Breathing this may cause lungcancer. (Fiberglass wool is known to the State ofCalifornia to cause cancer.)

Fiberglass wool may also cause respiratory, skin,and eye irritation.

To reduce exposure to this substance or for furtherinformation, consult material safety data sheetsavailable from address shown below, or contactyour supervisor.

P.O. Box 79990

Dallas, TX 75379-9900 USA

CAUTIONLabel all wires prior to disconnection when servicing controls. Wiring errors can cause improper anddangerous operation. Verify proper operation afterservicing.

WARNINGDanger of electrical shock, explosionand fire. Improper servicing couldresult in dangerous operation, seriousinujry, death or property damage.

WARNINGDo not use this furnace if any part has been underwater. A flood-damaged furnace is extremely dangerous. Attempts to use the furnace can result infire or explosion. A qualified service agencyshould be contacted to inspect the furnace and toreplace all gas controls, control system parts,electrical parts that have been wet or the furnaceif deemed necessary.

WARNINGDanger of explosion. Can cause injuryor product or property damage. Shouldthe gas supply fail to shut off or ifoverheating occurs, shut off the gasvalve to the furnace before shutting offthe electrical supply.

Unit Operation

FOR YOUR SAFETY READ BEFORE LIGHTING

BEFORE LIGHTING smell all around the furnace area for

gas. Be sure to smell next to the roof because some gas is

heavier than air and will settle on the roof.

The gas valve may be equipped with either a gas control

lever or gas control knob. Use only your hand to push

the lever or turn the gas control knob. Never use tools. If

the the lever will not move or the knob will not push in or

turn by hand, do not try to repair it. Call a qualified

service technician. Force or attempted repair may

result in a fire or explosion.

The unit is equipped with an automatic spark ignition

system. There is no pilot. In case of a safety shutdown,

move thermostat switch to OFF and return the thermostat

switch to HEAT. Electromechanical thermostat is shown

in figure 1. For logic units and units with electronic

temperature controls, shut off the main disconnect and

then turn it on to reset the ignition control.


TYPICAL ELECTROMECHANICAL THERMOSTAT

FIGURE 1

Placing Unit Into Operation

WARNINGDanger of explosion and fire. Can causeinjury or product or property damage.You must follow these instructions exactly.

Gas Valve Operation (figures 2 and 3)


2- Set thermostat to lowest setting.

3- Turn off all electrical power to appliance.

4- This furnace is equipped with an ignition device which

automatically lights the burner. Do not try to light the

burner by hand.



Switch gas valve lever to OFF. See figure 2.

Honeywell VR8305 Gas Valve with Knob - Turn knob

on gas valve clockwise to OFF. Do not force. See

figure 3.

7- Wait five (5) minutes to clear out any gas. If you then

smell gas, STOP! Immediately call your

gas supplier from a neighbor's phone. Follow the gas

supplier's instructions. If you do not smell gas, go to

the next step.


Switch gas valve lever to ON. See figure 2.


on gas valve counterclockwise to ON. Do not

force. See figure 3.


10- Turn on all electrical power to appliance.



Single-Stage

MANIFOLDPRESSURE

OUTLET

INLETPRESSURE

PORT

MANIFOLDPRESSURE

ADJUSTMENTSCREW

FIGURE 2

HONEYWELL VR8205Q/VR8305Q SERIES GAS VALVE


FIGURE 3

LOW FIREADJUSTMENT

HIGH FIREADJUSTMENT

INLETPRESSURE

TAP

MANIFOLDPRESSURE

TAP

11- Set thermostat to desired setting.

NOTE - When unit is initially started, steps 1 through 9

may need to be repeated to purge air from gas line.

12- The combustion air inducer will start. The burners

will light within 40 seconds.

13- If the furnace does not light the first time (gas line not

fully purged), it will attempt up to two more ignitions

before locking out.

14- If lockout occurs, repeat steps 1 through 10.

15- If the furnace will not operate, follow the instructions

“Turning Off Gas to Furnace” and call your service

technician or gas supplier.

Turning Off Gas to Furnace

1- If using an electromechanical thermostat, set to the

lowest setting.

2- Before performing any service, turn off all electrical

power to the furnace.



Switch gas valve lever to OFF.


on gas valve clockwise to OFF. Do not force.

Page 6506372-01 12/2012


Burner Flame

WARNINGDanger of explosion and fire. Can causeinjury or product or property damage.Periodically inspect burner flame to ensure proper unit operation.

The primary air is permanently set for normal operation.

The flame will be basically blue with some clear yellow

streaking in the end of the flame. Inspect the burner flame

periodically during the heating season using the

inspection port provided on the burner access panel.

Flue Passage and Vent Inspection

Annually, before heating season, inspect the combustion

air intake louvers, vent cap, heat exchanger, burners and

combustion air inducer for corrosion, deterioration or

deposits of debris. Remove any obstructions or blockage.

See figure 4, 5, or 6.

HEAT EXCHANGER ASSEMBLY036-072 UNITS

FIGURE 4

BURNER


VENTCONNECTOR

GAS VALVE

HEATEXCHANGER

TUBE

PRIMARYLIMIT

ROLLOUTSWITCH

FLUE BOXCOVER


FIGURE 5

BURNER


VENTCONNECTOR

GAS VALVE

HEATEXCHANGER

TUBE


FIGURE 6

BURNER


VENTCONNECTOR

GAS VALVE

HEATEXCHANGER

TUBE

Service

To maintain efficiency and longevity, your equipment

must be serviced yearly by a qualified service technician.

Failure to provide proof of service can void warranty.

CAUTIONLabel all wires prior to disconnection when servicing controls. Wiring errors can cause improperand dangerous operation. Verify proper operationafter servicing.


Servicing Filter

Units are equipped with filters as shown in table 1. Filters

should be checked monthly and replaced when

necessary. Take note of air flow direction marking on filter

frame when reinstalling filters. See figure 7.

NOTE - Replace factory-installed filters within 30 days of

initial unit start-up. Refer to local codes or appropriate

jurisdiction for approved filters.

WARNINGUnits are shipped from the factory with temporaryfilters. Replace filters before building is occupied.Damage to unit could result if filters are not replaced with approved filters. Refer to appropriatecodes.

TABLE 1

UNIT FILTERS

Unit Qty Filter Size - inches (mm)

036, 048 4 16 X 20 X 2 (406 X 508 X 51)

060, 072 4 20 X 20 X 2 (508 X 508 X 51)

092, 102, 120, 150 4 20 X 25 X 2 (457 X 610 X 51)

156 - 300S 6 24 X 24 X 2 (610 X 610 X 51)

242, 300H, 360 12 20 X 20 X 2 (508 X 508 X 51)

NOTE - Filters must be ULC approved or equivalent foruse in Canada.

REMOVE FILTERS

FIGURE 7

PULL TO REMOVEFILTERS

Lubrication

All motors are lubricated at the factory. No further

lubrication is required.

156-360 Units -

Blower shaft bearings are prelubricated. For extended

bearing life, relubricate at least once every two years

with a lithium base grease, such as Alvania 3 (Shell Oil),

Chevron BRB2 (Standard Oil) or Regal AFB2 (Texas

Oil). Use a hand grease gun for relubrication. Add only

enough grease to purge through the bearings so that a

bead of grease appears at the seal lip contacts.

Manifold Pressures

Manifold pressures are shown in table 2. Refer to figures

2 and 3 to locate pressure ports.

TABLE 2MANIFOLD PRESSURES in.wg.

Unit

Natural Gas Propane (LP) Gas

1stStage+ 0.2

2ndStage+ 0.3

1stStage+ 0.2

2ndStage+ 0.3

036, 048, 060, 072Std./High Heat

NA3.5

(0.87)NA

10.5(2.61)

036, 048, 060, 072Dual Heat

1.7(0.47)

3.5(0.87)

5.1(1.27)

10.5(2.61)

092-3601.6

(0.40)3.7

(0.92)5.5

(1.37)10.5

(2.61)

Burners

Clean the burners as follows:

1- Turn off the electrical power and the gas supply to the

unit.

2- Remove the burner compartment access panel.

3- Remove top burner box panel. See figure 8 or 9.

4- Remove two screws securing burners to burner support

and lift the burners from the orifices. See figure 8 or 9.

Clean as necessary. Spark gap on ignition electrode

must be properly set. Refer to the Heating Adjustment

section in the installation instructions.

5- Replace burners and screws securing burner.

Replace the top burner box panel and burner

compartment access panel.

6- Turn on the electrical power and the gas supply to the

unit. Follow the operating instructions attached to the

unit and use the inspection port in the access panel

to check the flame.

FIGURE 8

BURNER BOX ASSEMBLY036-072 UNITS

GAS VALVE

GAS

MANIFOLD

FLAME

SENSOR

BURNERS

IGNITOR

TOP BURNER

BOX PANEL

Page 8506372-01 12/2012

BURNER BOX ASSEMBLY092-360 UNITS

FIGURE 9

GASMANIFOLD

FLAMESENSOR

GASVALVE

BURNERS

Combustion Air Inducer

A combustion air inducer proving switch checks

combustion air inducer operation before allowing power

to the gas controller. The gas controller will not operate if

the inducer is obstructed.

Under normal operating conditions, the combustion air

inducer wheel should be checked and cleaned prior to the

heating season. However, it should be examined

periodically during the heating season to establish an

ideal cleaning schedule.

Clean the combustion air inducer as follows:

1- Turn off the electrical power and the gas supply to the

unit.

2- On 092-150 units, remove the tube bracket support

from the mullion on the right side of the heat section.

On 156-360 units, remove the mullion on the right

side of the heat section.

3- Disconnect the pressure switch air tubing from the

combustion air inducer port.

4- Remove and retain the screws securing the

combustion air inducer to the flue box.

5- Remove and retain two screws from the bracket

supporting the vent connector before removing vent

connector. 024-150 units do not have a support

bracket. See figure 4, 5, or 6.

6- Clean the inducer wheel blades with a small brush

and wipe off any dust from the housing. Clean

accumulated dust from the front of the flue box cover.

7- Return the combustion air inducer motor and the vent

connector to their original location. Secure with

retained screws. It is recommended that the

combustion air inducer gasket be replaced during

reassembly.

8- On 092-150 units, replace the tube bracket support.

On 156-360 units, replace mullion.

9- Use a small brush to clean the combustion air inlet

louvers on the heat access panel.

Flue Passageway and Flue Box

1- Remove the combustion air inducer assembly as

described in the Combustion Air Inducer subsection.

2- Remove the flue box cover. Clean the flue box with a

wire brush as required.

3- Clean the tubes with a wire brush.

4- Reassemble the unit. The flue box cover gasket and

combustion air inducer gasket should also be

replaced during reassembly.

Service Reminder

Call a qualified service technician if the unit is inoperative.

Before calling, always check the following to be sure

service is required:

1- Be sure electrical disconnect switches are ON.

2- Check room thermostat for proper setting.

3- Replace any blown fuses or reset circuit breakers.

4- Gas valve should be ON.

5- Air filters should not be plugged, limiting air flow.

6- Make sure all access panels are in place.

Repair Parts Listing

When ordering repair parts, include the complete model number and serial number listed on the ETL/CSA rating plate -

e.g. LGH120H4BH1Y.

Gas Heat Section Parts

Heat Exchanger

Combustion Air Assembly

Combustion Air Proving Switch

Burner Assembly

Burner Manifold Assembly

Main Burner Orifices

Flame Roll-out Switches

Auxiliary Limit Controls

Ignition Electrode Assembly

Ignition Lead

Ignition Sensor Assembly

Sensor Lead

Combination Gas Valve

Limit Controls

Cooling Parts

Compressors

Cond. Fan Run Capacitors

Cond. Fan Blades

Cond. Fan Mounting Bracket

Cond. Fan Motors

Freezestats

Fan Grille

Indoor Blower Motors

Blower Wheel

Expansion Valve

Distributor

Exhaust Fans (Opt.)

Electrical Control Parts

Unit Controller

Compressor Contactors

Circuit Breakers (Opt.)

Transformer (Control)

Transformer (Contactor)

Blower Contactor

Limit, Blower Relay

Heat Relays

Condenser Fan Relays

Capacitor CAB

Relay CAB

Disconnect Switch (Opt.)

Page 1 506373−01

��11/11

��

2011

See unit nameplate for manufacturerand address.

Litho U.S.A.

INSTALLATIONINSTRUCTIONSAGENCY REQUIRED

RETAIN THESE INSTRUCTIONSFOR FUTURE REFERENCE

3 THROUGH 30 TONSLGH036−360 UNITS

PACKAGED GAS AND COOLING UNITS506373−0111/2011Supersedes 9/2011

Table of Contents

Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connect Gas Piping 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

High Altitude Derate 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Test Gas Piping 4. . . . . . . . . . . . . . . . . . . . . . . . . . .

Two Stage Gas Valve Adjustment 5. . . . . . . . . . . . . . . . . . . .

Gas Heat Operation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Proper Gas Flow 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Gas Heat Schematic 6. . . . . . . . . . . . . . . . . . . . . . . .

Typical Unit Schematic 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair Parts Listing 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety

WARNINGImproper installation, adjustment, alteration, ser-vice or maintenance can cause property damage,personal injury or loss of life. Installation and ser-vice must be performed by a qualified installer, ser-vice agency or the gas supplier

Use of this unit as a construction heater or air conditioner

is not recommended during any phase of construction.

Very low return air temperatures, harmful vapors and

operation of the unit with clogged or misplaced filters will

damage the unit.

If this unit has been used for heating or cooling of

buildings or structures under construction, the following

conditions must be met or the warranty will be void:

� The vent hood must be installed per these installation

instructions.

� A room thermostat must control the unit. The use of

fixed jumpers that will provide continuous heating or

cooling is not allowed.

� A pre−filter must be installed at the entry to the return

air duct.

� The return air duct must be provided and sealed to

the unit.

� Return air temperature range between 55°F (13°C)

and 80°F (27°C) must be maintained.

� Air filters must be replaced and pre−filter must be

removed upon construction completion.

� The input rate and temperature rise must be set per

the unit rating plate.

� The heat exchanger, components, duct system, air

filters and evaporator coil must be thoroughly

cleaned following final construction clean−up.

� The unit operating conditions (including airflow,

cooling operation, ignition, input rate, temperature

rise and venting) must be verified according to these

installation instructions.

NOTE − The Commonwealth of Massachusetts

stipulates these additional requirements:

� Gas units shall be installed by a licensed plumber

or gas fitter only.

� The gas cock must be �T handle" type.

The unit is certified for installation on noncombustible

floors only. However, it may be installed on wood

flooring, or on class A, class B, or class C material

covered floors when used in horizontal discharge

applications or in downflow discharge applications when

mounted on a E1CURB, S6CURB, or LARMF roof

mounting frame.

Adequate clearance shall be provided around air

openings into the vestibule area. Provisions shall be

made for proper operation and for combustion air and

ventilation air supply. Unit must be adjusted for the

temperature rise range and within the allowable external

static pressure on furnaces with a duct system as listed

on unit nameplate.

Page 2LGH036−360 Agency

United States

The unit is ETL/CSA certified for outdoor installations only

at the clearances to combustible materials listed on the

unit nameplate and in figures 1, 2 and 3.

LGH036, 048, 060, 072UNIT CLEARANCES

C

D

B

A

FIGURE 1

1Unit

Clearance

Ain.(mm)

Bin.(mm)

Cin.(mm)

Din.(mm)

TopClearance

ServiceClearance

48(1219)

36(914)

36(914)

36(914)

Unob-structed


36(914)

1(25)

1(25)

1(25)

Unob-structed

Minimum Opera-tion Clearance

36(914)

36(914)

36(914)

36(914)

Unob-structed

Note − Entire perimeter of unit base requires support when elevated above

mounting surface.

1 Service Clearance − Required for removal of serviceable parts.

Clearance to Combustibles − Required clearance to combustible material.

Minimum Operation Clearance − Required clearance for proper unit operation.

LGH092, 102, 120, 150 UNIT CLEARANCES

FIGURE 2

C

D

B

A

1Unit

Clearance

Ain.(mm)

Bin.(mm)

Cin.(mm)

Din.(mm)

TopClearance

ServiceClearance

60(1524)

36(914)

36(914)

60(1524)

Unob-structed


36(914)

1(25)

1(25)

1(25)

Unob-structed


36(914)

36(914)

36(914)

36(914)

Unob-structed


mounting surface.




LGH156, 180, 210, 240, 242, 300, 360UNIT CLEARANCES

C

D B

A

OutdoorAir Hood

FIGURE 3

Number offans variesby model.

1Unit

Clearance

Ain.(mm)

Bin.(mm)

Cin.(mm)

Din.(mm)

TopClearance

ServiceClearance

60(1524)

36(914)

36*(914)

66(1676)

Unob-structed


36(914)

1(25)

1(25)

1(25)

Unob-structed


45(1143)

36(914)

36**(914)

41(1041)

Unob-structed

*242, 300H and 360 units with high static exhaust fans allow 80in.(2032mm).

**242, 300H and 360 units with high static exhaust fans allow 80in.(2032mm).


mounting surface.




Installation of the ETL/CSA certified units must conform

with local building codes. In the absence of local codes,

units must be installed according to the current National

Fuel Gas Code ANSI Z223.1/NFPA 54.

When installed, the unit must be electrically wired and

grounded according to local codes or, in the absence of

local codes, with the current National Electric Code,

ANSI/NFPA 70.

The current American National Standard (ANSI−

Z233.1/NFPA54) National Fuel Gas Code is available

from the following address:

American National Standard Institute Inc.

11 West 42nd Street

New York, NY 10036

The current National Electric Code (ANSI/NFPA 70) is

available from the following address:

National Fire Protection Association

1 Batterymarch Park

PO Box 9101

Quincy, MA 02269−9101

Use only the type of gas approved for use with this

furnace. Refer to unit nameplate.

Page 3506373−01 11/2011

Never test for gas leaks with an open flame. Check all

connections with a commercially available soap solution

made specifically for leak detection.

NOTE − Furnace must be adjusted to obtain a

temperature rise (high and low fire) within the range(s)

specified on the unit nameplate. Failure to do so may

cause erratic limit operation.

Canada

The unit is CSA International (CSA) certified for

combination heating/cooling for outdoor installations and

non−residential use only at the clearances to combustible

materials as listed on the unit nameplate.

Installation of CSA international certified units must

conform with current standard CSA B149.1, �Natural Gas

and Propane Installation Codes" and applicable local

codes. Authorities having jurisdiction should be consulted

before installation.

The unit must be wired and electrically grounded

according to local codes or, in the absence of local codes,

current CSA Standard C22.1 Canadian Electrical Code

Part 1. Installation of combination heating/cooling units

must also conform with current CSA Standard B52

�Mechanical Refrigeration Code."

Connect Gas Piping

A manual main shut−off valve must be installed external

to the unit when local codes require the installation of

such a valve.

Install a ground joint union between the gas control

manifold and the main manual shut−off valve.

When making piping connections a drip leg should be

installed on vertical pipe runs to serve as a trap for

sediment or condensate.

A 1/8" N.P.T. plugged tap is located on gas valve for test

gauge connection. See figure 4 or 5 for tap location. See

figure 6 for for gas supply piping entry through the side of

the unit and figure 7 for gas piping through the bottom of

the unit. A kit is required when routing gas supply piping

through the bottom of the unit.

Compounds used on threaded joints of gas piping must

be resistant to the actions of liquified petroleum gases.



Single−StageMANIFOLDPRESSURE

OUTLET

INLETPRESSURE

PORT

MANIFOLDPRESSURE

ADJUSTMENTSCREW

FIGURE 4

HONEYWELL VR8205Q/VR8305Q SERIES GAS VALVE


FIGURE 5

LOW FIREADJUSTMENT

HIGH FIREADJUSTMENT

MANIFOLDINLET

PRESSURETAP

MANIFOLDOUTLET

PRESSURETAP

FIGURE 6

TO GASSUPPLY

MANUAL MAIN

SHUT−OFF VALVE

GAS PIPING

SUPPORT

GROUND

JOINT UNION

(REFER TO

LOCAL CODES)

DRIP LEG

OUTSIDE OF UNIT GAS PIPE CONNECTION

TO GASVALVE


DRIP LEG

MANUAL MAIN

SHUT−OFF VALVE

GROUND

JOINT UNION

FIGURE 7

BOTTOM ENTRY GAS PIPING COMPLETED

7" NIPPLE

STREETELBOW

TO GASSUPPLY

TO GASVALVE

Grommets for both gas pipe openings are field provided.

2−1/2" NIPPLE

High Altitude Derate

Locate the high altitude conversion sticker in the unit

literature bag. Fill out the conversion sticker and affix next

to the unit nameplate.

Refer to table 1 for high altitude adjustments.

TABLE 1HIGH ALTITUDE DERATE

Altitude Ft.* Gas Manifold Pressure

2000−4500 See Unit Nameplate

4500 And Above Derate 2% / 1000 Ft. Above Sea Level

*Units installed at 0−2000 feet do not need to be modified.

NOTE - This is the only permissible derate for these units.

Pressure Test Gas Piping

Operating pressures at the unit gas connection must be

as shown in table 2.

TABLE 2

OPERATING PRESSURE AT GAS CONNECTION �w.c.

Natural Gas LP / Propane Gas

Min. Max. Min. Max.

LGH036−072 4.5 10.5 11 13.5

LGH092−360 4.7 10.5 11 13.5

When testing the pressure of gas lines, the gas valve

must be disconnected and isolated. Gas valves can be

damaged if subjected to more than 0.5 psig.

WARNINGFIRE OR EXPLOSION HAZARD

Failure to follow the safety warnings exactly couldresult in serious injury, death or property damage.

Never test for gas leaks with an open flame. Use acommercially available soap solution made specifi-cally for the detection of leaks to check all connec-tions. A fire or explosion may result causing prop-erty damage, personal injury or loss of life.

Page 5506373−01 11/2011

Two−Stage Gas Valve Adjustment

Gas manifold pressures should match pressures shown

in table 3. On two stage gas valves, initiate a W2

thermostat demand to check high fire pressure before low

fire pressure. With high fire operating, reduce the

thermostat demand to W1 and check the low fire

pressure. Refer to the Unit Controller manual to initiate a

thermostat demand.

IMPORTANT − Do not set low fire pressure lower than

the certified minimum input rating listed in table 3.

TABLE 3MANIFOLD INPUT PRESSURES in.wg.

Unit

Natural GasPropane (LP)

Gas

1stStage+ 0.2

2ndStage+ 0.3

1stStage+ 0.2

2ndStage+ 0.3

036, 048, 060, 072Std./Med./High Heat

NA 3.5 NA 10.5

036, 048, 060, 072Dual Heat

1.7 3.5 5.1 10.5

092− 360 1.6 3.7 5.5 10.5

Gas Heat Operation

See the operating instruction plate on the unit for details.

Proper Gas Flow (Approximate)

1− Operate unit at least 15 minutes before checking gas

flow. Determine the time in seconds for two

revolutions of gas through the meter. (Two

revolutions assures a more accurate time.) A

portable LP gas meter (17Y44) is available for LP

applications.

2− Divide the number of seconds by two and

compare to the time in table 4. If manifold pressure is

correct and rate is incorrect, check gas orifices for

proper size and restriction.

3− Remove temporary gas meter if installed.

NOTE− To obtain accurate reading, shut off all other

gas appliances connected to meter.

TABLE 4

GAS METER CLOCKING CHART

UnitInputRate

(Btuh)

Seconds for One Revolution

Natural LP

1 cu ftDial

2 cu ftDial

1 cu ftDial

2 cu ftDial

65,000 55 111 138 277

78,000 46 92 115 231

105,000 34 69 86 171

125,000 29 58 72 144

130,000 28 55 69 138

150,000 24 48 60 120

169,000 21 43 53 107

180,000 20 40 50 100

240,000 15 30 38 75

260,000 14 28 35 69

360,000 10 20 30 50

480,000 8 15 19 38

Natural−1000 btu/cu ft LP−2500 btu/cu ft

Note: Table assumes standard temperature (60°F), pressure

(30in.Hg.), and fuel heating values (Btuh/Ft.3). Apply pressure

corrections in altitudes above 2000 ft.


TYPICAL GAS HEAT SCHEMATIC

This schematic is typical. See the wiring schematic on the unit for actual unit wiring.

Page 7506373−01 11/2011

TYPICAL UNIT SCHEMATIC

This schematic is typical.See the wiring schematic onthe unit for actual unit wiring.

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P138

PLU

G,

EX

HA

US

T F

AN

2P

263

PLU

G, H

IGH

AN

D L

OW

PR

ES

SU

RE

SW

ITC

HE

SP

264

PLU

G,

BLO

WE

R D

EC

KP

265

PLU

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NTA

CT

OR

S A

ND

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YS

P267

PLU

G,O

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DO

OR

FA

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RE

AP

268

PLU

G, T

RA

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ME

RS

P269

PLU

G,

HU

MID

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P299

PLU

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RT

17

SE

NS

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OR

AIR

S4

SW

ITC

H,

LIM

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1S

7S

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CH

, LIM

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11

SW

ITC

H, LO

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P 1

S28

SW

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S50

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S 2

S53

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S 3

S84

SW

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H, LO

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MB

IEN

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P 2

S85

SW

ITC

H, LO

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P 3

S87

SW

ITC

H,

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S88

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H,

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P 2

S98

SW

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Repair Parts Listing

When ordering repair parts, include the complete model number and serial number listed on the ETL/CSA rating plate −

e.g. LGH120H4BH1Y.

Gas Heat Section Parts

Heat Exchanger

Combustion Air Assembly

Combustion Air Proving Switch

Burner Assembly

Burner Manifold Assembly

Main Burner Orifices

Flame Roll−out Switches

Auxiliary Limit Controls

Ignition Electrode Assembly

Ignition Lead

Ignition Sensor Assembly

Sensor Lead

Combination Gas Valve

Limit Controls

Cooling Parts

Compressors

Condenser Fan Motors

Condenser Fan Blades

Condenser Fan Run Capacitors

Freezestats

Condenser Fan Mounting Bracket

Fan Grille

Indoor Blower Motors

Blower Wheel

Expansion Valve

Distributor

Exhaust Fans (Opt.)

Electrical Control Parts

Unit Controller

Compressor Contactors

Circuit Breakers (Opt.)

Transformer (Control)

Transformer (Contactor)

Blower Contactor

Limit, Blower Relay

Heat Relays

Condenser Fan Relays

Capacitor CAB

Relay CAB

Disconnect Switch (Opt.)

8/2013 506215-01

�� Page 1

Litho U.S.A.�2013

506215-01 8/2013Supersedes7/2013

Prodigy®

M2 Unit Controller

INSTALLATION & SETUP GUIDE FOR THE M2 UNIT CONTROLLERUSED WITH ENERGENCE® ROOFTOP UNITS

(Supports DB1 v1.13; M2 v7.12)

Description

The Prodigy® M2 unit controller:

� provides control functions for Energence® rooftop unit,� includes a user interface consisting of a dot matrix

display, navigation arrow buttons, a select button, and aUSB port,

� provides status and diagnostic information fortroubleshooting,

� allows adjustment of time delays and setpoints thatenable advanced features,

� is controlled by a standard room thermostat, direct digitalcontroller (DDC), or a zone sensor,

� can be configured as a device on the network whendaisy-chained to the L Connection® Network,

� may be connected to a PC which has been loaded withUnit Controller software,

� accepts add-on boards to build variations according toapplication or equipment type.

� USB verification and profile sharing.

Website

For all available Prodigy® documentation, see the LennoxCommercial website (www.lennoxcommercial.com).

Table Of Contents

USB Firmware Update 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M2 unit controller, expansion board locations,

SmartWire� connections 3. . . . . . . . . . . . . . . . . . . . . . . .M2 unit controller LED operation indications 4. . . . . . . . . . . .Startup 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Menu interface 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Operation:

DISPLAY 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GUIDED SETUP 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SERVICE 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TEST 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DATA 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SETTINGS 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSTALL NEW M2 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Economizer (Damper) 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX:

Abbreviations 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Parts List 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .USB Service Report Example 27. . . . . . . . . . . . . . . . . . . .Alarm Codes 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Wiring Diagrams 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M2 unit controller signal reference diagram 40. . . . . . . . .M2 unit controller board connections diagram 41. . . . . . .

QUICK START GUIDE (BACK COVER) 42. . . . . . . . . . . .

Page 2

M2 (A55) unit controller - location, controls, inputs/outputs

USB Firmware update

Prodigy USB Flash Drive Update Capability

USB firmware updating is only available on Prodigy Display,(DB), firmware versions v1.09.xx and later. To read thedisplay firmware version, navigate to menu DATA >FACTORY > READ DB SOFTWARE VERSION. Check thefollowing table to determine if your display board firmwareversion supports USB Flash Drive updating:

Display (DB)version

Flash Drive Updating Supported?

Display board M2 Main Board

1.08.xx and earlier NO NO

1.09.xx D and later NO YES

1.09.xx H and later YES YES

To determine if the M2 Main Board supports firmwareupdates through the Prodigy Display's USB port, navigate tomenu DATA > FACTORY > READ M2 SOFTWAREVERSION. Check the following table to determine if your M2board firmware version supports USB Flash Drive updating:

M2 versionFlash Drive UpdatingSupported M2 Board?

7.0x.xx (no suffix) NO

7.0x.xx S NO

7.0x.xx U and later YES

Auto-update

The firmware on the Prodigy (M2) controller or on the displayboard (DB1) can be auto-updated by inserting a USB stickwith new firmware version in the USB slot while the M2 boardis operating.

DB1 FIRMWARE NOTE: The menus described in thefollowing will only be available for v1.09.xx H and laterversions of the DB1 firmware.

Upon USB insertion, the display will change to “USB”. Pressselect button and then scroll down to FIRMWARE UPDATEand press the select button. “CHECKING FILE” will displayfirst; then “UPDATING”, followed by “NN%”.

Page 3

It will take a few minutes to update the M2 board with the newfirmware. After reaching 100%, M2 UPDATE COMPLETEwill display first; then it will check and update DB1 board.Upon completion, the boards will reset and restart.

Manual update

The firmware on the Prodigy (M2) controller or on the displayboard (DB1) can be manually updated by inserting a USBstick which may contain more than one firmware version inthe USB slot.

Files needed for update

Files needed to upgrade Prodigy controller from USB stick:

1) For DB1: DBxxxxxx.BIN2) For M2: M2xxxx.SL1

The “xxx” here are place holders for version numberinformation in the actual file names, and varies from oneversion to the next.

The DB1 upgrade file has a BIN file extension, and must belocated in the root folder of the thumb drive. No more than 10

files should be in the root folder of the thumb drive. If locatedanywhere else the Prodigy will not find the DB1 file.

The M2 upgrade file has an SL1 file extension, and must belocated in the \firmware\m2 folder of the thumb drive. Iflocated anywhere else the Prodigy will not find the M2 file.

DB1 FIRMWARE NOTE: The menus described in thefollowing will only be available for v1.09.xx H and laterversions of the DB1 firmware.

After inserting the USB stick, navigate to SERVICE >SOFTWARE RECOVERY > UPDATE M2 SOFTWARE (orUPDATE DB1 SOFTWARE). Press the select button, thenuse the up/down arrows to select a firmware version. Pressselect; “CHECKING FILE” will display first; then“UPDATING”, followed by “NN%”.

It will take a few minutes to update the board with the newfirmware. After reaching 100%, M2 (or DB1) UPDATECOMPLETE will display first; then it will reset and restart theboard.

Repeat this procedure, if desired, for the other board. Youmay remove the USB anytime after the RESTART begins.

M2 unit controller board, expansion board locations, SmartWire� connections

Figure 1 shows the controller components and the locations for expansion boards.

EXPANSIONPORT

EXPANSIONPORT

CONTROLBOARD

CONTROLBOARD

L CONNECTION(optional connec

tion method for UnitController software)

USB CONNECTION(for Unit Controller

software)

OR

BACnet orLonTalk

SmartWireconnections

To disconnectTSTAT.COM fromCOM cut jumper.

To disconnectHMD.COM fromCOM cut jumper.

AENTH

B

Figure 1. M2 unit controller board and expansion boards

Page 4

M2 unit controller LED indicators

Some indicators on the circuit board are visible with the cover in place; others are not. The indicators and their meanings aredescribed in table 1.

Table 1. LED operation indicationsLED Status Indication Meaning

Heartbeat GREEN SLOW FLASH NORMAL OPERATION

GREEN FAST FLASH CHECK 24V, UPDATE FIRMWARE, OR REPLACE BOARD

UNLIT STEADY OFF NO VOLTAGE TO M2 BOARDOR DEFECTIVE BOARD

GREEN STEADY ON DEFECTIVE BOARD (REPLACE)

OAS(Note: LED is

not present in

the newer M2

hardware.

GREEN STEADY ON OUTSIDE AIR IS SUITABLE

GREEN FLASHINGIAQ MODE OR MECHANICALCOOLING DURING FREE COOLING

PCConnection

LOCAL(YELLOW)

FLICKERING ONCOMMUNICATION TO PC USBCONNECTOR

NETWORK(GREEN)

FLICKERING ON NETWORK COMMUNICATION

S-BUS BUS (GREEN) FLICKERING ON NETWORK TRAFFIC PRESENT

TX (YELLOW) FLICKERING ON M2 IS TRANSMITTING

BACnet(option)

RX (GREEN) FLICKERING ON M2 IS RECEIVING


LED Status Indication Meaning

LonTalk(option)

RX (GREEN) FLICKERING ON M2 IS RECEIVING


SERVICE(RED)

FLASHING 1 SEC.ON; 1 SEC. OFF

NODE IS NOT CONFIGURED;APPLICATION LOADED

SERVICE(UNLIT)

STEADY OFFNODE IS COMPLETELY CONFIGURED

SERVICE(RED)

CONSTANT ONNODE IS CONFIGURED; NO APPLICATION LOADED

SERVICE(RED)

QUICK FLASHESDURINGINITIALIZATION

MESSAGES BEING PASSED TOM2; NORMAL OPERATION

ThermostatInput

YELLOW INDICATES ATHERMOSTATDEMAND

G- BLOWER ONW1- 1ST STAGE HEATW2- 2ND STAGE HEATY1- 1ST STAGE COOLY2- 2ND STAGE COOLOCP- OCCUPIED

Thermostat LEDs indicate only with incoming thermostat connection visSmartWire connector.

Slow Flash = 1 sec on; 1 sec off.

Fast Flash = 1 msec on; 1 msec off.

A “flickering” LED flashes significantly faster than a “fast flash“.

NOTE - LEDs are energized by 24 vac thermostat inputs.

Startup

Connections between RTU & M2 unit controller

The M2 unit controller connects to the rooftop unit usingSmartWire� connectors. Each connector is “keyed” so thatno connector can be installed in the wrong location. Be sureall connectors are in place and completely inserted (seefigure 1).

Sensor Common Isolation

Thermostat (TSTAT) and humidity (HUM) sensor commonsmay be isolated if they are powered remotely. Slide switch toOPEN to isolate (see figure 1).

USB interface usage

The USB port is used for verifying service, downloadingreports, transferring unit profiles and performing firmwareupdates. Onsite data collection requires use of a USB flashdrive. Data written to the drive includes date, time, serialnumber, catalog number, basic data, error code buffer, andunit configuration.

PC interface

The PC interface is used with unit controller software tochange programming. The M2 interface uses a USB A to Bmale cable. You may also use a 9 pin/RS485 connection tothe phone jack or S-BUS connector. A list of serviceconnection kits is on Page 26.

SmartWire™ Field Wiring Connections

The SmartWire™ connectors, P297, P298 and P299, allow

for easy field wiring connection points.

2-amp fuse or wire jumper

The 24VAC supply outputs, (R), on these connectors arerouted through the 2-amp fuse, F1, on earlier boards or awire jumper on later boards.

TSTAT COM switch (earlier boards) OR TSTAT COM wire jumpers (later boards)

TSTAT COM is located to the left of P297. This switch wouldbe set to the LEFT or the wire jumpers would be cut only inunique situations where the device supplying the thermostatsignals to the Prodigy® controller has its own power sourceand does not share a common reference voltage with theProdigy controller. Otherwise the switch needs to be set tothe default, closed position, to the RIGHT and the wirejumper would remain intact, as shipped from the factory.

HMD COM switch (earlier boards) OR HMD COM wire jumpers (later boards)

HMD COM is located to the left of P299. This switch wouldbe set to the RIGHT or the wire jumpers would be cut only inunique situations where the device supplying the thermostatsignals to the Prodigy controller has its own power sourceand does not share a common reference voltage with theProdigy controller. Otherwise the switch needs to be set tothe default, closed position, to the LEFT and the wire jumperwould remain intact, as shipped from the factory.

Page 5

Startup (continued)

User interface menu

The user interface is accessed through the menu navigationarrows and the select button . The diagram infigure 2 shows a high level overview of the main menuoptions along with the next level list of selections. The lowerlevel options are described later in this manual.

“Home” location, DISPLAY—When the unit is powered on,one of the features in the DISPLAY column will be shown (theword 'DISPLAY' is never shown). What is displayed in this“home” screen, is dependant on the priority message present

at the time, in priority order of top-to-bottom of the left columnin figure 2. For example, if an alarm is present, that will bedisplayed until it has been silenced or cleared.

To access the other three columns, first press and thenuse to scroll between SERVICE, DATA, ANDSETTINGS. Next, press to open the SERVICE (or DATAor SETTINGS) menu. Use until desired item isdisplayed.

To return to DISPLAY, use (if deep in the menu structure,hold it down; it will step back to display).

ALARM(S)

STATUS

MODE

CALLS

USB

TEST

OFFLINE

IN / OUTPUTS

REPLACE

SOFTWARE

RECOVERY

RUNTIMES

HISTORY

SENSORS

NETWORK

FACTORY

STATUS

UNIT

SETPOINTS

CONTROL

OPTIONS

INSTALL

Dashed line forautomatic displayedmessages

Usearrows

tomove

NOTE - Use the left button during normaloperation to clear delays (hold 2 seconds)or reset the controller (5 seconds).

Usearrows

tomove

Usearrows

tomove

SETTINGS

DATA

SERVICE

Figure 2. M2 unit controller main interface menu

Page 6

Menu Interface

Table 2 shows the major levels of the menu interface. Manyof these options have more levels and are described in thefollowing sections that detail DISPLAY, SERVICE, DATA,and SETTINGS.Use rectangular button (ENTER) or � to progress tonext menu level (i.e. Level 1 to Level 2).

Use � to “back up” to the next higher menu level (i.e.Level 2 to Level 1).

Use �� to move (scroll) within a menu level; also use tochange values of selected item.

Table 2. Menu Interface

Level 1 Level 2 Level 3

NOTE - Features and options not currently available are greyed out inthe manual and will show a message of “N/A” on the display

(displayarea)

ALARM SILENCE (push ENTER button to silence)

ALARMS(multiple)

SILENCE ALL (push ENTER button to silence allalarms; or push � to view alarms and �� toscroll thru description list.)

MODE

COMP LOADSHEDDING

COOLING

DEHUMIDIFICATION

FAN ONLY

FREE COOLING

FRESH AIR COOL

FRESH AIR HEAT

HEATING

HVAC OFF

IDLE

LOW AMBIENTLOCKOUT

MORNINGWARMUP

M2 FAILED TORESPOND

M2 RESET

OFF ON ALARM

PRE-COOL

PRE INSTALL

RESTARTING..

SMOKE

TEST

LonTalkNEURON IDXX:XX:XX:XX:XX:XX

USB

WRITING USB

WRITING ALARM/STATUS LOG

USB COMPLETE

UPDATE FIRMWARE (For versions 1.09 xx H and later)

SERVICE

US

E A

RR

OW

S T

O M

OV

E

TEST

GUIDED (N/A)

BLOWER

FANS

COOL

HEAT

DAMPER

HUMIDITROL

MGV

VAV

SENSORS

OUTPUTS

CONTROLLER

OFFLINE

LOCKOUT

BLOWER ONLY (N/A)

COOLING ONLY (N/A)

HEATING ONLY (N/A)

RESET

IN / OUTPUTS

THERMOSTAT

ZONING (N/A)

SENSORS

RELAYS

NETWORK

REPLACE

FILTER

BELT

UV LAMP

FANS

BLOWER

COMPRESSOR

SOFTWARE RECOVERY

UPDATE M2 SOFTWAREUPDATE DB1 SOFTWARE(FOR DB VERSIONS 1.09H ANDLATER ONLY)

Table 2. Menu Interface (cont'd)

Level 1 Level 2 Level 3

DATA

US

E A

RR

OW

S T

O M

OV

E

RUNTIMES

POWER ON

FILTER: XX HRS

BELT: XX HRS

UV LAMP: XX HRS

BLOWER: XX HRS - XX CYC

COOLING

HEATING

FREE COOLING: XX HRS - XX CYC

FANS

EXHAUST

HUMIDITROL: XX HRS - XX CYC

HISTORY

ALARMS

STATUS

LAST USB REPORT

READ INSTALL RPT

CLEAR HISTORY

SENSORS(also accessiblethru In /Outputs)

TSTAT

BRPM:XX

OAT:XXºF

RAT:XXºF

DAT:XXºF

ZAT:XXºF

IAQ:XX PPM

SMK:OFF/ON

RH:XX%

IE:XX MA

OE:XX MA

GLO:OFF/ON

DI2:OFF/ON

DI3:OFF/ON

DI4:OFF/ON

NETWORKLCONN ADDRESS

BACNET

LonTalk

FACTORY

READ M2 SOFTWARE VERSION

READ DB SOFTWARE VERSION

READ FACTORY RPT

CATALOG NO.

MODEL NO.

SERIAL NO.

STATUS

OCCUPIED/UNOCCUPIED

SETPOINTS HH CC F

APP MODE 255 255

COMM TYPE

COMM TIMER

#CURR ALRMS N: A1, A2, … AN

BLOWER

DAMPER STATUS

DAMPER POS

SETTINGS

US

E A

RR

OW

S T

O M

OV

E

UNITUNIT NO.

DATE/TIME

UNITS F/C

SETPOINTS

COOLING

HEATING

DAMPER

REHEAT

EXHAUST

IAQ

ALARMS

CONTROL

LOCAL

THERMOSTAT

LCONN

BACnet

LonTalk

MSAV

REHEAT

SMOKE MODE

GUIDED SETUP

ECTO

OPTIONS N/A

INSTALL

NEW M2

DAMPER

LANGUAGE (ENGL/SPAN/FREN)

FLOAT SW

BLOWER PROVING SW

DIRTY FILTER SW

BLOWER OVERLOAD SW

PHASE MONITOR

UV LAMP

ELECTRIC HEAT STAGES

UPDATE DISPLAY SOFTWARE

Page 7

DISPLAY Interface DISPLAY

The display shows operating mode if in normal operation.Alarm, status, calls and plugging in the USB will interrupt thedisplay. Alarm messages will stay displayed until corrected orsilenced using the local menu.ALARM Example – MODE message “COOLING” isdisplaying when a smoke alarm occurs; then “ALARM (XX)SMOKE A173” displays until cleared. You must clear allalarms and status to see normal MODE message. Strike 3alarms will say “ALARM(XX) STRIKE 3 COMP1 HIGHPRESS S4” after the alarm message.USB – normal MODE message is displayed when USB isplugged in.

Normal Mode MessagesThe format of the message is mode and setpoint (see table3).

Table 3. Possible MODE messagesCOMP LOADSHEDDING

Unit is running at lower power capacity

COOLING Cool demand present; unit is cooling

DEHUMIDIFICATION Unit is dehumidifying

FAN ONLY Fan only

FREE COOLING No compressor cooling

FRESH AIR COOL Cool ventilation air to neutral value

FRESH AIR HEAT Heat ventilation air to neutral value

HEATING Heat demand present; unit is heating

HVAC OFF No heat, cool, ventilation allowed

IDLE Demand satisfied; blower off

LOW AMBIENTLOCKOUT

Outdoor air is too cold to allow fans to run

MORNING WARMUP Outdoor air damper closed

M2 FAILED TORESPOND

Display is missing messages from M2

M2 RESET M2 controller is resetting

OFF ON ALARM Unit is off due presence of alarm

ONE BLINKING LED Bootloader mode

PRE-COOL

Compressor not allowed—free cooling.(During the first 30 minutes of the first cooling demand following a change from unoccupied to occupied, calls for mechanical[compressor] cooling are ignored if aneconomizer is installed and if outdoor air issuitable for free cooling.)

PREINSTALL Must follow installation menus

RESTARTING.. Only displayed at power-up

SMOKE Smoke input detected

TEST Network has unit in test mode

PROCESSINGDisplay is busy processing data from M2controller

Unit Operation

This section describes the display and control buttons, howto configure the unit, and how to read stored configurationdata, status, and alarms.

The M2 unit controller is an input and output junction point.If in the thermostat mode, thermostat inputs at P297 resultin an output to unit components (see table 9 on Page 40). Ifthe heartbeat LED is not flashing, see table 1 (Page 4) forheartbeat operation. If the display shows an alarm, refer totable 8 (Page 30) for more information. If the thermostatinput indicating lights are not responding appropriately,check the thermostat or a DDC control acting asthermostat inputs into P297.

Basic cooling and heating functions may be energized to testmajor unit components by using the M2 unit controller testingfunction or by using jumper wires on the Field WiringTermination plug P297.

To access the other three columns, first press and thenuse to scroll between SERVICE, DATA, ANDSETTINGS. Next, press to open the SERVICE (or DATAor SETTINGS) menu. Use until desired item isdisplayed.

Alarms

Figure 3 shows how alarms may be viewed and silenced.

ALARM(xx) SMOKE DETECTED.

DISPLAYWINDOW

LEFT SCROLLINGMESSAGE

(To SILENCE an alarm,press ENTER)

ALARMSxx,xx,...

(To SILENCE ALL alarms,press ENTER)

(To view descriptions of individual alarms, press �)

(scroll through descriptionsof individual alarms)

Figure 3. Alarm Code Readout Examples

Page 8

DISPLAY Interface DISPLAY (Continued)

USB Menu

When the Lennox USB drive is plugged in during normalMODE, a menu will be displayed providing options to saveand load unit profiles as well as capturing unit data for serviceverification.

Multiple units may use the same USB drive. The filename ofthe service reports will be based on the unit's serial number;for example 5608J5875.txt. The filename of the unit profileswill be based on the unit's catalog number; for exampleAA1AA.dat.

REPORT

USB

WRITING USB REPORT...

PROFILES

USB COMPLETE

ISDAT FILE

PRESENT ONDRIVE?

YES

NO

UPLOAD PROFILE c:\<cat#>.dat?

SAVE PROFILE c:\<cat#>.dat?

YES

NO

YES

NO

UPLOADING PROFILE... UPLOAD COMPLETE M2 RESET

SAVING PROFILE... DOWNLOAD COMPLETE

FIRMWAREUPDATE CHECKING FILE... UPDATING M2...

NEWERM2 SOFTWARE

ON FLASHDRIVE?

YES

NO

CHECKING FILEINTEGRITY...

ISFILEOK?

M2 UPDATEDYES

NO

BAD CRCM2 UPDATE NOT FOUND

NEWERDB1 SOFTWARE

ON FLASHDRIVE?

UPDATING DB1...CHECKING FILEINTEGRITY...

ISFILEOK?

DB1UPDATED

YES

NO

BAD CRC

YES

NO

DB1 UPDATENOT FOUND

DB1RESETS

WHILE M2 OR DB1 AREUPDATING, DISPLAYINDICATES PERCENTCOMPLETE (NN%)

SERVICE REPORT...

SMARTAIRFLOWREPORT

STARTING BLOWER

% XX

WRITING REPORT

USB COMPLETE

PROGRESS IN %THE SUB-NODES WILLBE VISIBLE ONLY

WHENSMARTAIRFLOW™ IS

INSTALLED.

NOTE: THIS MENU BECOMESVISIBLE WHEN A USB FLASH

DRIVE IS INSERTED INTO THEDB1.

Page 9

GUIDED SETUP Menu Interface GUIDED SETUP

Upon initial unit start-up, the M2 Unit Controller's menuinterface defaults to a GUIDED SETUP. This setup isdescribed on this and the following page.

This guided setup is available at any time should you wish togo back through and re-configure the system's setupparameters.

M2 WILL NOW RESET

USED W/ITHLCONN,LonTalk (N/AW/BACNET)

SAVE PROFILE TOUSB STICK

CONTROL

SETTINGS

GUIDED SETUP

SET DATE/TIME

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THERMOSTAT

SETCONTROLMODE LOCAL

BACNETMACADDRESS

AD:XXX BAUDRATE

XX.XK

RETURN AIR BACKUP?

OCPHEAT BUSTPT

XX.XºF UNOCPHEAT BU STPT

XX.XºF OCPCOOL BU STPT

XX.XºF UNOCPCOOL BU STPT

XX.XºF

START UPDELAY XX

OVERRIDETIMER X

BLOWERONOCP

ALWAYS ON

CYCLES

NETWORKSENSOR

XXX ! SET !

MTH:XX ! SET !DAY:XX YR:20XX HR:XX MIN:XX 09:45:01

SETUP EQUIPMENT DESCRIBED ON NEXT PAGE

OCPHEAT BU STPT

XX.XºF UNOCPHEAT BU STPT

XX.XºF OCPCOOL BU STPT

XX.XºF UNOCPCOOL BU STPT

XX.XºF

TSTAT

RAT

NONE

LONTALK

LCONNADDR:XX ! SET !

CO2NO

YESRH TEMP

NO

YES

NO

YES

NO

YES

ENTERADVANCEDGUIDED SETUP

MONITOR ONLY

REMOTE

ZONE

M2 WILL NOW RESET

NO ZONE W/LonTalk

ZONE

NO

YES ! SETUP IS COMPLETE! PRESS TO EXITINSERT USB STICK AND PRESS

(Control Mode is set; continue with SETUP EQUIPMENT)

SET UNIT NO.

EXIT SETUP

SETUP EQUIPMENT

EXIT ADVANCEDSETUP

CONTROL MODE SET

BACKUPMODE

CONTROLMODE

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Page 10

GUIDED SETUP Menu Interface GUIDED SETUP (Continued)

DAMPERFULLOPEN STPT

DAMPERSTARTOPEN STPT

SETUPEQUIPMENT

CHANGEHUMIDITROLSETTINGS?

MSAV HIGH SPEED XXX%

SELECT SENSOR TYPE NO SENSOR USE DI4

NETWORK SENSOR

HUMIDITYSETPOINT

LOCAL SENSOR

SETDAMPERTYPE

MANUAL

ECON

GLOBAL

ENTH

TEMP

SETINPUTCONTROL

MOAD

SW1 MUST BESET TO TEMP

SW1 MUST BESET TO ODE

SW1 MUST BESET TO GLO

XX%MIN DMPBLWRLOW

XX%MIN DMPBLWRHIGH

MIN DMP POSITION

XX%

SET EXHAUSTFAN SETPT

XX%

SELECTTEMPSTPT

OFFSET

OAT STPT

XXºF

XXºF

SUPPLYAIRSTPT

XX.XºF

YES

XXX PPMCHECK CO2SENSORTHEN PRESS

XXX PPM

SET HUMIDITROLCONTROLCONDITION

MSAV LOW SPEED XXX%

OCC/BLOWERNO CONDITIONS

CHANGEMSAV SETTINGS?

NO

YES

XX%RH DEADBAND XX%

NO

YES

CHANGE OADAMPERSETTINGS?

NO

YES

! SET !

3,4, or 5

ton unit detected?

NO

YES

Power ExhaustDetected

?NO

! SET !

CHANGEDEMAND VENTCONTROLSETTINGS?

NO

YES

! SET !

! SET !

YMSAV

N

! SET !

YHUM

N

YDAMP

N

YDVC

N

(SYSTEM CHECKS UNIT CONFIGURATIONAND PROMPTS THE USER FOR ONLY THEINSTALLED OPTION[S].)

sw1=glo

?

sw1=ode

?

sw1=temp

?

N

Y

N

Y

N

Y

THIS COMPLETES SYSTEM SETUP --see previous page for save options

EQUIPMENT SETUP COMPLETE

“HUM” ONLYAPPEARS IF UNITIS CONFIGUREDFROM FACTORYWITHHUMIDITROL, ORIF A NEW M2BOARD HAS BEENCONFIGURED TOSUPPORTHUMIDITROL.

See Page 19 for complete MSAV details

Page 11

SERVICE Menu Interface SERVICE

From the DISPLAY mode, press and then use toscroll to SERVICE. Next, press to enter the SERVICEmenu. Use until desired item is displayed.

TEST

OFFLINE

IN/OUTPUTS

REPLACE

SOFTWARE RECOVERY

SERVICE

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Using SERVICE, you may run tests that check a functionaloperation (e.g. HEATING) or you may run tests that singleout a system component for checking. The diagram thatfollow in this section show how to navigate through thesystem to access service and test functions.

When the list of tests appears, use the up/down arrows untilthe test you want to run appears. Then press the SELECTBUTTON to begin running the test.

SERVICE > TEST

In the SERVICE menu, use until TEST is displayed.Press to enter the TEST menu.

GUIDED

BLOWER

FANS

COOL

HEAT

DAMPER

REHEAT

SENSORS

OUTPUTS

CONTROLLER

See table 4(Page 12]) for detailsof TEST menu.

TEST

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Using the TEST menu, the service technician may run asequence of tests to gather information available while thatcomponent is turned on. The unit will return to normal modewhen leaving the TEST menu. See table 4 for details.

Any Status/Alarm codes found during testing will be logged tothe event history.

Upon exit from TEST mode, the unit will return to normaloperation if no key is pushed for 1 hour.

SERVICE > OFFLINE

In the SERVICE menu, use until OFFLINE is displayed.Press to enter the OFFLINE menu.

LOCKOUT UNIT LOCKED OUT

BLOWER ONLY

COOLING ONLY

HEATING ONLY

RESET M2 RESET

OFFLINE

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SERVICE > IN / OUTPUTS

In the SERVICE menu, use until IN / OUTPUTS isdisplayed. Press to enter the IN / OUTPUTS menu.

THERMOSTAT

ZONING

ON/OFF INPUT SENSORS TSTAT FROM G, W1, W2,

Y1, Y2, OCP

BL SPEED RPM

(OPEN/CLOSED)

OAT:XXFRAT:XXF (SENSEDDAT”XXF TEMPERATURES)ZAT:XXF

IAQ (PPM) XXX

SMK:XXX ON/OFFRH:XX% REL. HUM.OE:XXMA (OUTDR. ENTH)IE:XMA (INDR ENTH)GLO:XXX ON OR OFFDI2:XXX ON/OFFDI3:XXX ON/OFFDI4:XXX ON/OFF

RELAYS COMP C1-C4 ON/OFF

SVC RL RLY ON/OFF

HUMIDITROL RV1-RV2 ON/OFF

EXHAUST EX1-EX2 ON/OFF

BLOWER BL ON/OFF

FAN F1 - F6 ON/OFF

NETWORK

IN/OUT

PUTS

BLOWERSPEED

DAMPERPOS

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SERVICE > REPLACE

In the SERVICE menu, use REPLACE to reset the runtimecounters for the listed device when a new hardwarecomponent has been installed in the system.

Use until REPLACE is displayed. Press to enter theREPLACE menu. Select one of the listed options and press

;this will reset the runtime for the new part to zero.

FILTER

BE;T

UV LAMP

FANS

BLOWER

COMPRESSOR

REPLACETO RESETXXXXXRUNTIMECOUNTERPRESS

WHEREXXXXX ISTHESELECTEDITEM

RESETUse

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SERVICE > SOFTWARE RECOVERY

In the SERVICE menu, use SOFTWARE RECOVERY toupdate firmware (see USB Firmware update Page 2).

Page 12

SERVICE Menu Interface SERVICE (Continued)

SERVICE > TEST (Continued) Table 4. TEST

TEST

TSTAT

BLOWER SPEED

DAMPER POS

OAT:XX ºF

RAT:XX ºF

DAT:XX ºF

ZAT:XX ºF

IAQ (PPM)

SMK:OFF/ON

RH:XX%

IE:XX MA

OE:XX MA

GLO:OFF/ON

D12:OFF/ON

DI3:OFF/ON

DI4:OFF/ON

Use sensor tests to choose each sensor and read the current sensed value.

NOTE 1. The number of fans, 1 min, 6 max, and their respective controloutput depends on the unit configuration. Only the fans present in unit aredisplayed. Refer to unit schematics for additional information.

NOTE 2. The number of stages, 1 min, 4 max, depends on unit configuration. Only stages present in unit are displayed.

NOTE: Unit configuration determineswhich menu items are displayed

HUMIDITROL

CONTROLLER

Turns on/off stage 1fan individually.

Turns on/off stage 2fan individually.

Monitors return air temp. of all stages.Dampers close for compressor tests.

Monitors discharge air temp. Blower, dampers,fans actuate automatically during tests.

Monitors return air temp. Stage 1 thru 4 compr low-speed test. Dampers are closed for compressor tests.

Monitors discharge air temperature. Blower, dampers, fans are actuated automatically during tests.

Monitors return air temperature of all stages. Dampersautomatically close and blower comes on for heat test.

Monitors discharge air temperature of all stages. Dampersautomatically close and blower comes on for heat test.

Monitors discharge air temperature. Stage 1 thru 4 heat test;dampers automatically close and blower comes on for heat test.

Monitors discharge air temperature. Stage 1 thru 4 heat test;dampers automatically close and blower comes on for heat test.

Damper allows testing economizer, motorized damper, and powered exhaust.Position allows monitoring damper position and control using arrow keys.

(If installed) Measures andreports voltage (0-10V)

(If installed) Measures andreports voltage (0-10V)

Allow turning on FANn individually

Allow turning on FAN1 individually

Shows RPM for blowerand allows adjustment

Display status of the switchwith blower low speed

Display status of the switchwith blower low speed.

Run blower onminimum speed

Run blower onmaximum speed

Monitors indoor enthalpy sensor.

Monitors outdoor enthalpy sensor.

Turns on stage 1 reheat; displays report.

Turns on stage 2 reheat; displays report.

Output test of service relay.

Output test of DO2.

M2 OK” if no errors. Checks memoryand installation of controller options.

Output test of DO3.

“TEST OK” if no errors. Checks switchesand screen.

“SETUP OK” if no errors. Checks proper installation of controller boards, switches, and settings

GUIDED

BLOWER

FANS

COOL

HEAT

DAMPER

MGV

VAV

SENSORS

OUTPUTS

BLOWER HI

BLOWER LOW

PROVING SWITCH

FILTER SWITCH

RPM

FAN1

FANn (see note 1)

COOL-FULL

COOLn (see note 2)

HEAT-FULL

HEATn (see note 2)

POSITION

IEN:XX MA

OEN:XX MA

EXHAUST

HUM Y1

HUM Y2

XXX

A01 / A02

SERVICE RELAY

DO2

DO3

M2 TEST

DISPLAY TEST

SETUP

BL OFF/ON

BL OFF/ON

PSW CLO

FSW OPE

XX RPM

FN1 OFF/ON

FNn OFF/ON

RAT XXF

XXX% OPEN

EXHAUST1

HUM Y1 OK

HUM Y2 OK

RLY OFF/ON

DO2 OFF/OON

DO3 OFF/ON

DAT XXF

RAT XXF

DAT XXF

RAT XXF

DAT XXF

RAT XXF

DAT XXF

EXHAUST2

DP XXX%

SET OFF/ON

SET OFF/ON

EX1OFF/ON

EX2 OFF/ON

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Will allow adjustment ofblower torque in %.

Will be displayed only ifSmartAirflow™ option is installed.

ACTUAL SUPPLYCFM

SPEED

XXXX CFM

XX %

Page 13

DATA Menu Interface DATA

From the DISPLAY mode, press and then use toscroll to DATA. Next, press to enter the DATA menu. Use

until desired item is displayed.

Use DATA to view information stored in the M2 UnitController.

RUNTIMES

HISTORY

SENSORS

NETWORK

FACTORY

STATUS

DATA

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DATA > RUNTIMES

In the DATA menu, use until RUNTIMES is displayed.Press to enter the RUNTIMES menu.

View accumulated runtime hours logged against variouscomponents and systems by the M2 unit controller.

POWER ON

FILTER: XX HRS

BELT: XX HRS

UV LAMP: XX HRS

BLOWER: XX HRS

COOLING COOL#: X HRS

HEATING HEAT#: X HRS

FREE COOLING: XX HRS - XX CYC

FANS FAN#: X HRS

EXHAUST STAGE#: X HRS X CYC

REHEAT: XX HRS - XX CYC

RUNTIMES

Press select button where shown;otherwise, accumulated runtimeswill display (if configured with listedoption) whilescrolling down.

INST: X HRS

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DATA > HISTORY

In the DATA menu, use until HISTORY is displayed.Press to enter the HISTORY menu.

Read the accumulated historical data of alarms, status, andUSB reports logged by the M2 unit controller.

ALARMS (###) ALARM

STATUS

LAST USB REPORT

READ INSTALL

!CLEAR!

Use the up/down arrows to scrollthrough a list of ALARM events.

!CLEAR” flashes 3times; then alarmsare cleared.

CLEARHISTORY

HISTORY

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DATA > SENSORS

In the DATA menu, use until SENSORS is displayed.Press to enter the SENSORS menu.

View the current sensed value for various systems being sentto the M2 unit controller.

TSTAT

BLOWER SPEED

OAT:XXºF

RAT:XXºF

DAT:XXºF

ZAT:XXºF

IAQ (PPM)

SMK: OFF/ON

RH: XX%

IE: XX MA

OE: XX MA

GLO: OFF/ON

DI2: OFF/ON

DI3 OFF/ON

DI4: OFF/ON

SENSORS

As each sensor is listed, itsreading is automatically displayed.

G:ON/OFF

W1:ON/OFF

W2:ON/OFF

Y1:ON/OFF

Y2:ON/OFF

OCP:ON/OFF

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s

XXXX

XXX

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Page 14

DATA Menu Interface DATA (Continued)

DATA > NETWORK

In the DATA menu, use until NETWORK is displayed.Press to enter the NETWORK menu. Read theNETWORK addresses stored in the M2 unit controller.

NETWORK LCONN ADDRESS XX

BACNET MAC ADDR XX

BAUD RATE XX.XK

DEVICE INSTANCE XX

LONTALK PROGRAM ID XX

NEURON ID XX

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DATA > FACTORY

In the DATA menu, use until FACTORY is displayed.Press to enter the NETWORK menu. Read theFACTORY information stored in the M2 unit controller.

FACTORY

Use the up/down arrowsto scroll through the readable entries. Use the select button to view software versions.

READ M2 SOFTWARE VERSION M2 VX.XX.XX

READ DB SOFTWARE VERSION DB1 VX.XX.XX

READ FACTORY REPORT

CATALOG NO. (catalog number)

MODEL NO. (model number)

SERIAL NO. (serial number)

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DATA > STATUS

In the DATA menu, use until STATUS is displayed.Press to enter the STATUS menu.

Read the STATUS information stored in the M2 unitcontroller.

STATUS

Use the up/down arrowsto scroll through the readable entries. Use the select button to view data.

OCC/UNOCC [OCC/UNOCC]

STPTS HH CC F HH:XX CC:XX

APP MODE 255 255

COMM TYPE LCONN, BACNET, LonTalk LEGACY,LonTalk, NONE

COMM TIMER NO TRAFFIC,<1. <2, <3,<4, <5,5+ MIN

#CURRENT ALRMS: # CURR ALRMS: N:A1, A2, ...AN A1, A2, .. A7

WHERE N = 0 - 7, 7+

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SMOKE: XX %

XX%

ACTUAL SUPPLY CFM

TARGET SUPPLY CFM

BLOWER

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YES

NO

DAMPER TARGET

DAMPER

XX%

DAMPER ACTUAL NOT INSTALLED,CLOSEDCLOSED OASDVC XXFEEE COOL XXMIN POS OAS XXMINPOS XX

SmartAirflow™INSTALLED?

YES

NO

ACTUAL OA CFM XXX cfm

TARGET OA CFM

ECON DIFFPRESSURE

IN. H20 (0-2)

XXX cfm

XXX cfm

XXX cfm

SEENOTEBELOW

NOTE: Display will indicate OAS when outdoor air could be used

for free cooling. For older hardware OAS LED will be an additional

indication. No OAS indication (display or LED) is available during

demand control ventilation (DVC) operation, although free cool

ing can still occur. xx is the damper position percent open feed

back signal.


Page 15

SETTINGS Menu Interface SETTINGS-

From the DISPLAY mode, press and then use toscroll to SETTINGS. Next, press to enter the SETTINGSmenu. Use until desired item is displayed.Use SETTINGS to make changes to the Unit Controller afterinitial installation.Many of the setting changes are the same as install.Changes are limited by the unit's build information. If youinstall new options, you can make changes to equipmentsettings beyond the factory values.Load shed to include power percentage and hard wire.

UNIT

SETPOINTS

CONTROL

OPTIONS

INSTALL

SETTINGS

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SETTINGS > UNIT

In the SETTINGS menu, use until UNIT is displayed.Press to enter the UNIT menu. View and change thecurrent settings.

UNIT

USE ARROWSTO ADJUST

DATE AND TIME

UNIT NO. XXX !SET !

DATE/TIME

TIME 15:45:00 DISPLAY TIME

DATE 01.01.00 DISPLAY DATE

SET CLK MTH: 03 DAY:18 YR: 2011

HR: 13 MIN: 33 ! SET !

13:33:07

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CURRENT TEMPERATUREFORMAT

UNITS F/C

DEGREES FAHRENHEIT

DEGREES CELSIUS

SET TEMPERATUREDISPLAY FORMAT

DEGREES FAHRENHEIT

DEGREES CELSIUS

! SET !

! SET !

SETTINGS > SETPOINTS > COOLING HEATING

REHEATEXHAUSTIAQ

(Also see SETTINGS > SETPOINTS > DAMPER)

In the SETTINGS menu, use until SETPOINTS isdisplayed. Press to enter the SETPOINTS menu.

View and change the current system setpoints setup in theM2 unit controller as shown in the following diagrams forCOOLING, HEATING, REHEAT, EXHAUST and IAQ.

REHEATWILL NOTBE VISIBLEUNLESS ITWASINSTALLEDAT THEFACTORY.

XX%RH [0-99%] OR DEHUMIDI-STAT CONTROL

SETPOINTS

(SEPARATE DIAGRAM FOLLOWS)

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COOLING OCP COOL BU STPT XX.XºF

UNOCP COOL BU STPT XX.XºF

FREE COOLING STPT XX.XºF

COMP TIME OFF DELAY

COOLING OPTION

HEATING OCP HEAT BU STPT XX.XºF

UNOCP HEAT BU STPT XX.XºF

DAMPER ! SET !

REHEAT REHEAT STPT

REHEAT DEADBAND 3%

EXHAUST SMOKE POS 50%

EXHAUST FAN STPT 50%

DAMPER START OPEN STPT 700PPM

DAMPER FULL OPEN STPT 1200PPM

IAQ/DCV

MAX OA CFM XXX CFM

MAX DAMPERPOS XX% OPEN

YES

NO


Page 16

SETTINGS > SETPOINTS > DAMPER

Use SETTINGS > SETPOINTS > DAMPER as shown in the following diagrams; default settings will be used. You mayadjust those settings to suit the building's requirements.

NOTE - Early hardware used pots and DIP switches; newer hardware does not.

OFF-SET

DAMPER

SEEFIGURE 4(PAGE 25)

NOTE: FORDETAILS, SEEECONOMIZERSECTION Page 23

SETPOINTS

ECONOMIZERMODE

TEMP SET DIP SW1 TO TMP,

PRESS WHENREADY TO CONTINUE

SET DIP SW1 TO ODE,


SET DIP SW1 TO GLO,


XXºF ! SET !

CONTROL XXºF ! SET !

SEEFIGURE 4(PAGE 25)

SUPPLY AIR STPT XX.XºF [44.9 TO 65.3ºF] ! SET !

MIN OCP BLOWER LOW XXX% [0 TO 100%} ! SET !

MIN OCP BLOWER HIGH XXX% [0 TO 100%] OR ! SET !POTENTIOMETER CONTROL

FAH XX.X% [40.2 TO 70ºF] OR ! SET !DISABLED

FAC XX.X% [59.9 TO 90.4ºF] OR ! SET !DISABLED

ENTH

GLOBAL

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OATSTPT

Early hardware

XX% [10TO 100CFM]

XX.X% [10TO 100CFM]

XX.X%[10 TO100 CFM]

XX MIN[20 TO60 MIN]

! SET !

! SET !

! SET !

! SET !

OFFSET

DAMPER

NOTE: FORDETAILS, SEEECONOMIZERSECTION Page 23

SETPOINTS

ECONOMIZERMODE

TEMP CONTROL

XXºF ! SET !

GLOBAL

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XX.XMA

! SET !

OATSTPT

XXºF ! SET !

ENTH CONTROL

! SET !DIFF OFFSET

XX.XMA

! SET !ODESTPT

Newer hardware

SUPPLY AIR STPT XX.XºF [44.9 TO 65.3ºF] ! SET !

MIN OCP BLOWER LOW XXX% [0 TO 100%} ! SET !

MIN OCP BLOWER HIGH XXX% [0 TO 100%] ! SET !

FAH XX.X% [40.2 TO 70ºF] OR ! SET !DISABLED

FAC XX.X% [59.9 TO 90.4ºF] OR ! SET !DISABLED

ALARMS

ENABLEALARM

LOW SUPPLYAIRFLOWALARM

LOW OUTDOORAIRFLOWALARM

NO

YES

ALARMTRIGGERPERIOD

HIGH OUTDOORAIRFLOWALARM

NOTE: ALARMS NODE WILL NOT BE VISIBLEUNTIL SMARTAIRFLOW™ OPTION IS INSTALLED.

Page 17

SETTINGS Menu Interface SETTINGS (Continued)

SETTINGS > CONTROL

In the SETTINGS menu, use until CONTROL isdisplayed. Press to enter the CONTROL menuaccess/change system setpoints.

LOCAL

THERMOSTAT

L CONN

BACNET

LONTALK

MSAV

REHEAT

SMOKE MODE

GUIDED SETUP

ECTO

CONTROL

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SETTINGS > CONTROL > LOCAL

(Used in absence of thermostat or network control)

Select SETTINGS > CONTROL > LOCAL as shown in thefollowing diagram; default settings will be used. You mayadjust those settings to suit the building's requirements.

LOCAL RETURN AIR BACKUP YES/NO

OCP HEAT BU STPT XX.XºF

UNOCP HEAT BU STPT XX.XºF

OCP COOL BU STPT XX.XºF

UNOCP COOL BU STPT XX.XºF

CONTROL

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SETTINGS > CONTROL > THERMOSTAT SETUP

Hook up to SmartWire� thermostat connections. SelectSETTINGS > CONTROL > THERMOSTAT and select YESas shown in the following diagram.

THERMOSTATCONTROLTHERMOSTATCONTROL?

YESNO

SETTINGS > CONTROL (DDC Integration or L CONN [L Connection])

Select SETTINGS > CONTROL > L CONN as shown in the following diagram; default settings will be used. You may adjustthose settings to suit the building's requirements.

LCONN ADDR:XX CONTROL MODE MONITOR ONLY

REMOTE

ZONE

BACKUPMODE

OCPHEAT BUSTPT

UNOCPHEAT BU STPT

OCPCOOL BU STPT

UNOCPCOOL BU STPT

START UPDELAY

OVERRIDETIMER

BLOWERONOCP

ALWAYS ON

CYCLES

NETWORKSENSOR

TSTAT

RAT

NONE

CO2NO

YESRH TEMP

NO

YES

NO

YES

ZONE

CONTROL

XX.XºF

XX X

XX.XºF XX.XºF XX.XºF

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Page 18


SETTINGS > CONTROL > BACnet

Select SETTINGS > CONTROL > BACnet as shown in the following diagram; default settings will be used. You may adjustthose settings to suit the building's requirements. The following diagram shows the BACnet menu's structure and how tomake changes.

BACNETMACADDRESS

AD:XXX BAUDRATE

XX.XK CONTROLMODE

BACKUPMODE

OCPHEAT BUSTPT

UNOCPHEAT BU STPT

OCPCOOL BU STPT

UNOCPCOOL BU STPT

START UPDELAY

OVERRIDETIMER

BLOWERONOCP

ALWAYS ON

CYCLES

NETWORKSENSOR

TSTAT

RAT

NONE TEMP

MONITOR ONLY

REMOTE

ZONE

ZONEXX.XºF XX.XºF XX.XºF

XX X

CONTROL

XX.XºF

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NO

YES

SETTINGS > CONTROL > LonTalk

Select SETTINGS > CONTROL > LonTalk as shown in the following diagram; default settings will be used. You may adjustthose settings to suit the building's requirements. The following diagram shows the LonTalk menu's structure and how tomake changes.

CONTROLMODE

BACKUPMODE

OCPHEAT BUSTPT

UNOCPHEAT BU STPT

OCPCOOL BU STPT

UNOCPCOOL BU STPT

START UPDELAY

OVERRIDETIMER

BLOWERONOCP

ALWAYS ON

CYCLES

NETWORKSENSOR

TSTAT

RAT

NONE

LONTALK

CO2NO

YESRH TEMP

NO

YES

NO

YES

ZONE

CONTROLMONITORONLY

XX.XºF XX.XºF XX.XºF XX.XºF

XX X

SETTINGS > CONTROL > REHEAT

When you select REHEAT, default settings will be in place.You may adjust those settings to suit the building'srequirements. The following diagram shows the REHEATmenu's structure and illustrates how to use the controls tomake changes.

CONTROL

REHEATDEADBAND

NETWORKSENSOR

XX% [0 - 99%ORDEHUMIDISTAT]

! SET !

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REHEAT SENSOR TYPE NONE

DEHUMIDISTAT

LOCAL SENSOR

REHEAT STPT ! SET !

XX% [1 - 10%] ! SET !

Page 19


SETTINGS > CONTROL > MSAV

(Multi‐stage air volume)

Select SETTINGS > CONTROL > MSAV as shown in thefollowing diagram; default settings will be in place. You mayadjust those settings to suit the building's requirements. Thefollowing diagram shows the MSAV menu's structure andillustrates how to use the controls to make changes.

CONTROL

MSAV

YES

SmartAirFlow™ or

non-A Boxinstalled?

NOBLOWER

XX%[20 to 100%] ! SET !

YES

N=2?NO

YES

N=3?NO

SETTINGS

(N=4)

NOTE - “N” IS THENUMBER OFCOMPRESSORS INTHE UNIT

COOLINGHIGH CFM

HEAT CFM

COOLINGLOW CFM

VENT CFM

COOLMED CFM

COOL MEDHIGH CFM

COOL MEDLOW CFM

MSAV HIGH SPEED

MSAV LOW SPEED

XX%[20 to 100%] ! SET !

SmartAirFlow™Installed

START BLOWERTO CALIBRATE?

YES

NO

SAVE SETTINGS YES /NO

YES /NO

1.. STARTING BLOWER

2.. BLOWER ON

3.. CLOSING DAMPER

4.. CALIBRARING SETTINGS

5.. Display CALIBRATING SETTINGS for 5 seconds

6.. CALIBRATION PROGRESS IN xx %

7.. CALIBRATION COMPLETE

NOTE: M2 WILL RESET AFTER THE CLIBRATION

PROCESS.

CALIBRATION / VALIDATING

NO

YES

YES

NO

! SET !

NOTE - SAVE SETTING WITHOUTRECALIBRATING

Page 20

SETTINGS > CONTROL > MSAV > DAMPER

(Multi‐stage air volume)

Select SETTINGS > CONTROL > MSAV > DAMPER asshown in the following diagram; default settings will be inplace. You may adjust those settings to suit the building'srequirements. The following diagram shows the MSAVmenu's structure and illustrates how to use the controls tomake changes.

CONTROL

MSAV

YES

SmartAirFlow™Installed?

NO

DAMPER XXX CFM

SETTINGS

OUTDOORAIRFLOW

SAVE SETTINGS YES /NO

YES

NO

SETOUTDOORAIRLFOW CFM

LOW SPEED -0 - 100%

HIGH SPEED -0 - 100%

YESMSAVUNIT

?

NO

YES

LOW SPEED

HIGH SPEED

XX%[0 to 100%] ! SET !

XX%[0 to 100%] ! SET !

WRITE_MSAV_SETTINGS

SAVESETTINGS?

BLOWER

NO

VFD BYPASSENGAGE

DISENGAGE

YES

VFDbypass

configured?

! SET !

NO

SETTINGS > CONTROL > SMOKE MODE

When you select SMOKE MODE, default settings will be inplace. You may adjust those settings to suit the building'srequirements. The following diagram shows the SMOKEMODE menu's structure and illustrates how to use thecontrols to make changes.

SMOKE MODE

Usearrows

tomove

UNIT OFF

BLWR OFF, EXH ON,DAMPER SHUT

PURGE-BLWR ON, EXHON, DAMPER OPEN

NEGATIVE-BLWR ON, EXHON, DAMPER SHUT

POSITIVE-BLWR ON, EXHOFF, DAMPER OPEN

CONTROL

! SET !

Page 21


SETTINGS > CONTROL > ECTO

When you select ECTO, default settings will be in place. Youmay adjust those settings to suit the building's requirements.The following diagram shows the ECTO menu's structureand illustrates how to use the controls to make changes.

BLOCK/PARAM/COUNT

RESET TOFACTORYECTO

ECTO B#: X[0, 2 TO10]

ARE YOUSURE?

YES

NO

M2 RESET

P#:XX[1 TO 27]

CNT:XXX[0 TO 255]

! SET !CONTROL

THE BLOCK, PARAMETER, AND COUNT RANGES SHOWN HEREARE LIMITS AND WILL BE RESTRICTED IN SOME CASES.

EXAMPLE: When told to set ECTO 6.27=1 navigate toSETTINGS > CONTROL > ECTO >BLOCK/PARAM/COUNT>B# and enter 6. At P# enter 27. AtCNT: enter 1. Display shows flashing "!SET!", and returns toBLOCK/PARAM/COUNT for another change. When changesare done, use the left arrow to back out of the CONTROLmenu, and UPDATING SETTINGS is shown while changes aremade, and then M2 resets to use the new values.

SETTINGS > INSTALL > (all except NEW M2)

Use SETTINGS > INSTALL as shown in the followingdiagram; default settings will be used. Use menu to changelanguage used, and ancillary components installed. Anexpert manual and service software are available for morecomplex installations (see Table 7, Page 26). If any alarmsare present, take corrective action prior to installation.

UPDATE DISPLAY SOFTWARE menu only appears in DB1

versions that do not end in "H". If the display does not have aHOST boot-loader (indicated by the H), then a Windows PCand USB cable (AtoA, or with BtoA adapter) are needed toperform firmware upgrade on DB1.

NOTE - The M2 should be reset in order for changes to be

updated within the controller.

Use INSTALL > FLOAT SWITCH to set up a condensate panoverflow switch. Use INSTALL > UPDATE DISPLAYSOFTWARE to install new display software.

EXITBOOTLOADERBY HOLDINGBACK ARROW �FOR ~ 3SECONDS

INSTALL NEW M2 (SEE PREVIOUS DIAGRAM)

NOT INSTALLEDDAMPER ECON

MOAD ! SET !

ENGLISHLANGUAGE FRENCH

SPANISH ! SET !

FLOAT NOT INSTALLEDSWITCH INSTALLED ! SET !

BLOWER NOT INSTALLEDPROVING SW INSTALLED ! SET !

DIRTY NOT INSTALLEDFILTER SW INSTALLED ! SET !

BLOWER NOT INSTALLEDOVERLOAD S135 INSTALLED ! SET !

PHASE NOT INSTALLEDMONITOR INSTALLED ! SET !

UV LAMP NOT INSTALLEDINSTALLED ! SET !

ELECTRIC NOT INSTALLEDHEAT 1 STAGESTAGES 2 STAGES

3 STAGES4 STAGES ! SET !

UPDATE DISPLAYDISPLAY WILL RESET ! RESET !SOFTWARE

Usearrows

tomove

Page 22

SETTINGS > INSTALL > NEW M2

Use SETTINGS > INSTALL > NEW M2 to go through the setup and change settings as needed when installing areplacement M2 (new M2 units have no factory pre-sets).

! SET !

Y/N

! SET !

! SET !

! SET !

NEW M2

M2 RESET

INSTALL

AFTER RESET, RETURN TO SETTINGS > INSTALL > NEW M2 AND SCROLL TOCATALOG NO. AND CONTINUE CONFIGURING THE BOARD TO MATCH THE UNIT.

CLEAR ARE YOUALL SURE?CONFIGURATIONS

UNIT SERIAL NO. XXXXXXXXX UNIT NO. XXX MODEL NO. XXXXXXXXXXXX

CATALOG NO. XXXXX

NOT INSTALLEDDAMPER MOAD

ECON

WHEN INSTALLING A NEW M2, ENTER THE SERIAL, UNIT NO.AND MODEL NO. THE M2 WILL AUTOMATICALLY RESET.

! SET !

Usearrows

tomove

THIS MENU ITEM IS ONLY VISIBLE AS A SELECTION WHENTHE BLOWER CONTROL MODE IS SET FOR MSAV(ECTO0.01 = 3) OR "M" IN BLOWERTYPE OF MODEL NUMBER.

EXHAUST NOT INSTALLEDSTAGES 1 EXHAUST STAGE

2 EXHAUST STAGES

HUMIDITROL NOYES

PHASE/VOLTAGE NOT INSTALLEDDETECTION INSTALLED

MSAV/VFD AUTOMATICBYPASS MANUAL

NONE

! SET !SMARTAIRFLOW INSTALLED NOT INSTALLED

Page 23

Economizer (Damper)

General

The economizer, when configured, controls

� damper position, which determines how much outdoorair is used to meet free cooling or indoor air quality (IAQ)requirements, and

� the optional power exhaust fans.

On a cooling demand, outdoor air is used for free coolinginstead of first-stage compressor(s) when outdoor air issuitable (OAS).

Outdoor Air Suitable (OAS) LED (Early M2 hardware)

A yellow LED which is labeled OAS provides economizerstatus. A steady yellow LED indicates that outdoor air issuitable for free cooling. A flashing yellow OAS light indicatesthe IAQ sensor requires outdoor air. (A flashing yellow LEDcan also mean that the economizer dampers are open tobring in fresh air while a compressor is on.) If the economizeris already operating, a flashing yellow OAS light indicates theIAQ sensor requires more outdoor air than is suitable for freecooling.

DIP Switch Settings (Early M2 hardware)

The DIP switch setting determines the mode used to enablefree cooling. The DIP switch also has a mode to set thedamper minimum position and test damper operation. DIPswitch is factory-set when the economizer isfactory-configured.

Free Cooling Discharge Air Setpoint

When outdoor air conditions are suitable and economizer isset to provide free cooling, dampers will modulate to achievea discharge air temperature of 55°F (13°C) default. Thissetpoint is adjustable between 45° and 65°F.

The setpoint can also be automatically increased whenoutdoor or return air temperatures drop. See Outdoor AirReset and Return Air Reset in the Discharge Air Controlsection in the Prodigy Application Guide (AdvancedFeatures) manual. These settings must be enabled andadjusted using the Prodigy CONTROL/ECTO menu to makechanges to ECTO values. Refer to the Prodigy ApplicationGuide. The unit does not have to be operating in discharge aircooling mode to adjust the free cooling discharge air setpoint,or to use setpoint reset.

During free cooling operation, the damper modulates tomaintain a discharge air temperature equal to the freecooling discharge air setpoint. If the damper has beencontinuously at its maximum open position for at least threeminutes, then a second stage cooling demand will be allowedto turn on the first stage of mechanical cooling. While themechanical cooling is on, the damper is held to its maximumposition, and does not modulate until the second stagedemand is satisfied. On a third stage cooling demand, thesecond stage of mechanical cooling will be turned on.

Outdoor Air Suitability

There are five modes which can be used to determine if theoutdoor conditions will enable free cooling.

� Old hardware: DIP switch is set toODE (Outdoor Enthalpy), and theEnthalpy Setpoint potentiometeris set A-through-D.

� New hardware: Configuration isset to Single EnthalpyEconomizer Control and ECTO 6.26 setpoint value isset to between 12 and 19mA, 150 to 240 counts.

Enthalpy Setpoint

This setting pertains to the ODE free cooling mode only. TheM2 will enable free cooling when outdoor air enthalpy (A7) isless than the enthalpy setpoint. Table 5 shows theapproximate enthalpy setpoints for each potentiometersetting at 50% relative humidity. The ECTO 6.26 column isthe correlating values used in the new hardware.

Example:—At setting “A”, the enthalpy control will modulatedampers open when outdoor air is at 73°F and 50% relativehumidity. If space temperatures are too warm, rotate thepotentiometer to “B” (old hardware) or enter a count of 173(ECTO 6.26 if new hardware). The enthalpy control will nowmodulate dampers open when outdoor air is 70°F and 50%relative humidity.

NOTE - When in outdoor enthalpy mode, a value between

130-240 counts is entered. When in differential enthalpy

mode a 2mA (or 26 count) difference between outdoor and

indoor enthalpy corresponds to about a 3.5°F difference in

temperature at constant relative humidity (or about a 12%RH

difference at constant temperature). When in differential

enthalpy mode, a value between 0-75 counts is entered.

Table 5. Enthalpy Control Setpoints

The recommended enthalpysetpoint is “A”. If the economizer is allowing air which is toowarm or too humid to enter thesystem, the enthalpy controlmay be changed to a lower setting (B, C, or D).

ControlSetting

Enthalpy Control Setpoint At 50% Relative Humidity Approximate Degrees F (C)

ECTO 6.26cnt (mA)

A 73 (23) 150 (11.8)

B 70 (21) 173 (13.6)

C 67 (19) 199 (15.5)

D 63 (17) 224 (17.6)

Page 24

Economizer (Damper) (Continued)

There are six options available to determine outdoor airsuitability (OAS) for free cooling. See table 6. Economizersettings are shown for each mode in figure 4.The appropriate sensors are provided when the economizer

is factory-configured. When the economizer isfield-configured, the ODE mode requires additionalfield-provided sensor(s). See table 6. The TEMP mode usessensors provided with all units.

Table 6. Free Cooling Options

Free cooling mode

DIP SWpositions

MODESelection

CONTROLSelection

OAS Setpoint CalculationOlder M2Hardware

Newer M2 Hardware

Temperature offset 1,2 to TMP TEMP OFFSET OAT<RAT-OFFSET (0 to 40 F)

Temperature setpoint 1,2 to TMP TEMP OAT STPT OAT<OAT STPT (41 to 70 F)

Remote 1,2 to TMP TEMP ANY OAS sent by network.

Enthalpy differential (Potentiometer set to DIFF) for old

hardware, or ECTO 6.26 = 0 to 75 counts for OFFSET

in new hardware. Old hardware does not use an OFF

SET.

1,2 to ODE ENTH N/AODE<IDE (old hardware) or ODE

< IDE OFFSET (new hardware)

Enthalpy setpoint (Potentiometer set to A-D) for old

hardware, or ECTO 6.26 = 130 to 240 counts for new

hardware.

1,2 to ODE ENTH N/AODE<POT (old hardware) orODE < ECTO 6.26 (new hardware)

Global input 1,2 to GLO GLOBAL N/A GLO input

Mode Outdoor air is suitable for free cooling when:

TEMP OFFSET Outdoor air temperature (RT17) is less than return air temperature (RT16) by at least the OFFSET value.

TEMP OAT STPT Outdoor air temperature (RT17) is less than the OAT STPT value.

RemoteEither of the TEMP modes can be used when a network OAS signal is provided by an energy management or buildingcontrol system, via BACnet, LonTalk, or L Connection. The network can command OAS, NOT OAS, or AUTO. AUTOreturns to local control of OAS, which is the selected TEMP mode..

ENTH (differential)Outdoor air enthalpy* (A7) is less than return air enthalpy (A62) by at least the OFFSET value. (There is no OFFSETvalue in old hardware.)

ENTH (setpoint)Outdoor air enthalpy (A7) is less than enthalpy setpoint potentiometer position A, B, C, or D (for old hardware), or lessthan ECTO 6.26 STPT value (new hardware).

GLOBALGlobal input is energized by (P297-9). This setting is also used for outdoor air damper applications. Global input alsobrings on the blower. (This mode is NOT used when OAS signal is provided via network connection. GLO is only usedwhen a 24VAC signal is used to energize the P297-9 GLO input.)

Enthalpy includes effects of both temperature and humidity.

Page 25

STEADY YELLOW“OUTDOOR AIRSUITABLE” LEDINDICATESOUTDOOR AIRCAN BE USEDFOR COOLING

ECONDIPSWITCH

M2 UNIT CONTROLLER

0-100% MINIMUM POSITION POTENTIOMETER

TEMP OFFSET, TEMP OATSTPT, and Remote MODE.

ODE DIFFERENTIAL (Outdoor Enthalpy)

Set to DIF

A

BC

D

DIFENTH SET PNT

ODE (Outdoor Enthalpy)

A

BC

D

DIF

Set to A

ENTH SET PNT

GLO (Global Enthalpy)

Note-All economizer modes of operation, except DSET, will modulatedampers to 55°F (13°C) discharge air.

Free Cooling Settings Economizer Controls and Location

Figure 4. Economizer controls and free cooling settings (Early M2 Hardware)

Page 26

APPENDIX

AbbreviationsA55 M2 board. Main controller board for RTUA59 C2 board. Second compressor add-on boardA133 GP1 Board. General purpose add-on board DIP selects 3 functionsAI Analog inputAO Analog outputBL BlowerBRPM Blower RPMC2 2nd compressor add-on board (A59)C1 1st stage coolingC2 2nd stage coolingC3 3rd stage coolingC4 4th stage coolingCAI Combustion air inducerCAVB Constant air volume with bypass damperCOM Electrical commonCLK ClockCP1 Compressor 1CP2 Compressor 2CP3 Compressor 3CP4 Compressor 4CSP Cooling setpointDAC Discharge (supply) air controlDACC Discharge (supply) air control coolingDACH Discharge (supply) air control heatingDAP Discharge (supply) air pressureDAT Discharge (supply) air temperatureDB DeadbandDCV Demand controlled ventilationDDC Direct Digital ControllerDI Digital inputDiff DifferentialDIP DIP switchDPOS Damper positionDO Digital outputECON EconomizerECTO Electronic configure to order (control parameters)FAC Fresh air cooling controlFAH Fresh air heating controlFAT Fresh air tempering control. See FAC & FAHFC Free coolingG Thermostat demand, blowerGLO Global mode or input (economizer)GP1 General purpose board GP1-1 (A133)H1 1st stage heatingH2 2nd stage heatingH3 3rd stage heatingH4 4th stage heatingHP1 Heat pump add-on board (A61)HP High pressureHSP Heating setpointHT HeatingIAQ Indoor air quality. Often synonymous with CO2 level in ppm

IDE Indoor enthalpy. Depends on temperature and humidityIE Indoor enthalpy.“w.c. Inches of water columnLCONN L ConnectionLED Light emitting diode. An indicator light, found either as individual

elements or grouped together as segments to form charactersLP Low pressureLT LimitM2 Main M2 unit controller board (A55).MCB1 Motor control boardMGV Modulating gas valveMOAD Motorized outdoor air damperMSAV Multi Stage Air VolumeOAC Outdoor air controlOAS Outdoor air suitable for free coolingOAT Outdoor air temperatureOCP Thermostat demand, occupied modeODE Outdoor enthalpy. Depends on temperature and humidityOE Outdoor enthalpy.PID Proportional, integral and derivative based control loopPPM Parts per million (mostly used for CO2 measurements)RAP Return air pressureRAT Return air temperatureRH Relative humidityRS ResetRTU Roof top unitRT6 Discharge air temperature sensorRT16 Return air temperature sensorRT17 Outdoor air temperature sensorSMK Smoke detection mode (alarm)SP SetpointStg StageSTPT SetpointTB Terminal blockTSTAT ThermostatUNOCP UnoccupiedUSB Universal Serial Bus, connect to PC or flash driveW1 Thermostat demand, heat stage 1W2 Thermostat demand, heat stage 2W3 Thermostat demand, heat stage 3W4 Thermostat demand, heat stage 4VAC Alternating current voltageVAV Variable air volume. Accomplished with a variable frequency drive

(VFD)VDC Direct current voltageVFD Var. frequency drive. An AC inverter used to vary motor speedVT VentilationY1 Thermostat demand, cooling stage oneY2 Thermostat demand, cooling stage twoY3 Thermostat demand, cooling stage threeY4 Thermostat demand, cooling stage fourZAT Zone air temperature

Table 7. Service parts available for Prodigy® Controller

Description

Catalognumber Description

Catalognumber Description

Catalognumber

M2 Unit Controller Replacement kit 59W47 M2 USB service kit tube 59W52 M2 Training board (no suitcase,USB, or M2)

59W56

DB1-1 M2 Display Replacement kit 59W49 M2-1 Display battery (10-pack) 59W53 SmartWire� Field Termination kit 59W57

MCB1 M2 Motor Control Replacement kit

59W50 M2-1 Fuse (2-Amp ATC, 5-pack) 59W54 Lennox Prodigy USB Memory Stick(5-pack)

59W59

M2 BACnet� Replacement kit 59W51 M2 Deluxe Training kit (suitcase,UC, USB kit, expert manual, M2,trainer)

59W55 Service Software & Expert Manualon USB

59W60

Page 27

USB Service Report Example

==========================================================================USB SERVICE REPORT==========================================================================Service Date 1/1/2010Service Time 12:00:00Serial No. 5609K00002M2 Version 7.02.00 DB1Version 1.05.00Unit No. 2Sbus Address 2BACnet Address. 2CAT No. NO CNMODEL NO. LGH036H4ES1YStatus HEATING==========================================================================Runtime Data Total Power On 1832 HRS 79 CYCLES Before Install 286 HRS −−−−−−− Filter 2040 HRS −−−−−−− Belt 1063 HRS −−−−−−− Blower 1162 HRS 131 CYCLES Compressor 1 46 HRS 66 CYCLES Compressor 2 14 HRS 17 CYCLES Compressor 3 0 HRS 0 CYCLES Compressor 4 0 HRS 0 CYCLES Outdoor Fan 1 14 HRS 32 CYCLES Outdoor Fan 2 0 HRS 2 CYCLES Outdoor Fan 3 0 HRS 0 CYCLES Outdoor Fan 4 0 HRS 0 CYCLES Outdoor Fan 5 0 HRS 0 CYCLES Outdoor Fan 6 0 HRS 0 CYCLES Heat Stage 1 96 HRS 17 CYCLES Heat Stage 2 96 HRS 16 CYCLES Reheat 0 HRS 13 CYCLES Free Cooling 42 HRS 1608 CYCLES UV Lamp 2368 HRS −−−−−−−==========================================================================

Sensor Data OAT : 80 degF RAT : 76 degF DAT : 69 degF ZAT : 59 degF RH : 34 % CO2 : 415 ppm==========================================================================

Alarm/Status Log ( 58) 12.14.2009 12:07:15 HEAT 1 NO PROOF GAS VALVE GV1 ( 85) 12.14.2009 12:03:24 INCORRECT HUMIDITROL SETTINGS ( 82) 12.14.2009 12:03:24 CONTROLLER RESET ( 95) 12.09.2009 19:54:37 SETTINGS HAVE CHANGED (120) 12.09.2009 18:52:54 ADD−ON BOARD MCB PROBLEM========================================================================== END OF REPORT

Page 28

USB Service Report Example (If SmartAirflow™ is Installed)

========================================================================

==

USB SERVICE REPORT

========================================================================

==

Service Date 10/26/2009

Service Time 16:28:05

Serial No. 5609K00002

M2 Version 7.00.00

DB1Version 1.03

Unit No. 2

Sbus Address 1

BACnet Address. 1

CAT No. NO CN

MODEL NO. LGH036H4ES1P

Status IDLE

========================================================================

==

Runtime Data

Total Power On 666 HRS 46 CYCLES

Before Install 286 HRS

Filter 661 HRS

Belt 373 HRS

Blower 473 HRS 100 CYCLES

Compressor 1 46 HRS 58 CYCLES




Outdoor Fan 1 14 HRS 24 CYCLES






Heat Stage 1 4 HRS 11 CYCLES

Heat Stage 2 4 HRS 12 CYCLES

Humiditrol 0 HRS 5 CYCLES

Free Cooling 42 HRS 1608 CYCLES

UV Lamp 751 HRS

========================================================================

==

Sensor Data

OAT : 80 degF

RAT : 76 degF

DAT : 69 degF

ZAT : 59 degF

RH : 34 %

CO2 : 415 ppm

========================================================================

SmartAirflow

Calibrated on 9/27/2012 13:10:49

Supply Airflow Calibration Table

PWM(%) Speed(rpm) Airflow(cfm)

20 350 715

30 470 810

40 590 907

50 670 1079

60 780 1265

70 860 1423

80 950 1680

90 1160 1839

96 1250 2198

Supply Airflow Targets

Mode Desired Airflow(cfm)PWM(%)

Cool High 1950 94

Cool Low 1200 56

Cool Med High 1800 91

Cool Med Low 1500 75

Heat 1900 93

Ventilation 1300 64

Smoke 2000 95

Economizer Differential Pressure at maximum Supply Airflow

Damper Position (%) Diff.Pressure(in.H2O)

0 0.25

50 0.1

100 0.05

Outside Airflow Targets

Minimum Outdoor Air/Minimum DCV: 400 cfm

Maximum DCV: 650 cfm

Minimum CO2: 500 ppm

Maximum CO2: 1200 ppm

========================================================================

==

Alarm/Status Log

( 82) 10.26.2009 16:27:04 CONTROLLER

RESET

( 5) 10.26.2009 16:25:13 BLOWER S52

========================================================================

==

END OF REPORT

Page 29

USB Service Report Example (If SmartAirflow™ is Calibrated)

SmartAirFlow

Page 30

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PR

ES

S S

98

CO

MP

OF

F. C

HE

CK

CH

AR

GE

, F

ILT

ER

S, A

IR F

LO

W. C

OIL

27

ALA

RM

(27)

ST

RIK

E 3

ON

CO

MP

3 S

98

CO

MP

LO

CK

OU

T. C

HE

CK

CH

EC

K C

HA

RG

E, F

ILT

ER

, A

IR F

LO

W, C

OIL

. U

SE

SE

RV

ICE

ME

NU

TO

CLE

AR

LO

CK

OU

TS

.

28

ALA

RM

(28)

CO

MP

4 L

OW

PR

ES

S S

97

CO

MP

OF

F. C

HE

CK

CH

AR

GE

, F

ILT

ER

S, A

IR F

LO

W. C

OIL

29

ALA

RM

(29)

ST

RIK

E 3

ON

CO

MP

4 S

97

CO

MP

LO

CK

OU

T. C

HE

CK

CH

EC

K C

HA

RG

E, F

ILT

ER

, A

IR F

LO

W, C

OIL

. U

SE

SE

RV

ICE

ME

NU

TO

CLE

AR

LO

CK

OU

TS

.

30

ALA

RM

(30)

CH

EC

K 2

AM

P F

US

E U

NIT

SH

UT

DO

WN

S149

CH

EC

K O

VE

RF

LO

W S

W

31

ALA

RM

(31)

ST

RIK

E 3

UN

IT S

HU

TD

OW

N S

149

CH

EC

K O

VE

RF

LO

W S

W

32

ALA

RM

(32)

CO

MP

1 F

RZ

STA

T O

PE

N S

49

CO

MP

OF

F. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

33

ALA

RM

(33)

ST

RIK

E 3

CO

MP

1 F

RZ

STA

T O

PE

N S

49

CO

MP

LO

CK

OU

T. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

34

ALA

RM

(34)

CO

MP

2 F

RZ

STA

T O

PE

N S

50

CO

MP

OF

F. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

35

ALA

RM

(35)

ST

RIK

E 3

CO

MP

2 F

RZ

STA

T O

PE

N S

50

CO

MP

LO

CK

OU

T. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

36

ALA

RM

(36)

CO

MP

3 F

RZ

STA

T O

PE

N S

53

CO

MP

OF

F. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

37

ALA

RM

(37)

ST

RIK

E 3

CO

MP

3 F

RZ

STA

T O

PE

N S

53

CO

MP

LO

CK

OU

T. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

38

ALA

RM

(38)

CO

MP

4 F

RZ

STA

T O

PE

N S

95

CO

MP

OF

F. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

39

ALA

RM

(39)

ST

RIK

E 3

CO

MP

4 F

RZ

STA

T O

PE

N S

95

CO

MP

LO

CK

OU

T. C

HE

CK

FR

ZS

TA

T, A

IR F

LO

W, C

HA

RG

E, C

OIL

, F

ILT

ER

, O

UT

SID

E T

EM

P

40

ALA

RM

(40)

RE

TU

RN

AIR

OV

ER

HE

AT

LIM

IT R

T16

HE

AT

AB

OV

E S

ET

PO

INT. C

HE

CK

SP

AC

E C

ON

DIT

ION

S O

R S

EN

SO

R

41

ALA

RM

(41)

RE

TU

RN

AIR

UN

DE

R C

OO

L L

IMIT

RT

16

CO

OL B

ELO

W S

ET

PO

INT. C

HE

CK

SP

AC

E C

ON

DIT

ION

S O

R S

EN

SO

R

42

ALA

RM

(42)

CH

EC

K 2

AM

P F

US

E U

NIT

SH

UT

DO

WN

S42 O

RS

135

CH

EC

K E

XT

MT

R O

VE

RLO

AD

S

43

ALA

RM

(43)

ST

RIK

E 3

UN

IT S

HU

TD

OW

N S

42 O

R S

135

CH

EC

K E

XT

MT

R O

VE

RLO

AD

S

Page 31

Ta

ble

8.

Ala

rm C

od

es

Ev

en

tC

od

eA

cti

on

Dis

pla

y M

essag

e

Ev

en

tC

od

e 44

ALA

RM

(44)

GA

S V

ALV

E O

N N

O D

EM

AN

D G

V1

UN

IT O

FF. G

V1 P

OW

ER

BU

T N

O D

EM

AN

D. C

HE

CK

GA

S P

RE

SS

, G

AS

VA

LVE

45

ALA

RM

(45)

GA

S V

ALV

E O

N N

O D

EM

AN

D G

V3

UN

IT O

FF. G

V3 P

OW

ER

BU

T N

O D

EM

AN

D. C

HE

CK

GA

S P

RE

SS

, G

AS

VA

LVE

46 -

49

Reserv

ed

50

ALA

RM

(50)

PR

IMA

RY

HE

AT

1 L

IMIT

OP

EN

S10

HE

AT

SE

CT

1 P

RIM

AR

Y H

EA

T L

IMIT

OP

EN

. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

51

ALA

RM

(51)

ST

RIK

E 3

PR

IMA

RY

HE

AT

1 L

IMIT

OP

EN

S10

HE

AT

SE

CT

1 P

RIM

AR

Y H

EA

T L

IMIT

OP

EN

. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

52

ALA

RM

(52)

SE

CO

ND

AR

Y H

EA

T 1

LIM

IT O

PE

N S

21

HE

AT

SE

CT

1 S

EC

ON

DA

RY

HE

AT

LIM

IT O

PE

N. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

53

ALA

RM

(53)

ST

RIK

E 3

SE

CO

ND

AR

Y H

EA

T 1

LIM

IT O

PE

N S

21

HE

AT

SE

CT

1 S

EC

ON

DA

RY

HE

AT

LIM

IT O

PE

N. C

HE

CK

AIR

FLO

W, F

ILT

ER

, LIM

IT, A

ND

WIR

ING

.

54

ALA

RM

(54)

HE

AT

1 R

OLL O

UT

OP

EN

HE

AT

SE

CT

1 C

HE

CK

GA

S R

OLL O

UT

S47

A

LA

RM

(54)

HE

AT

1 S

15 L

IMIT

OP

EN

HE

AT

SE

CT

1 L

IMIT

OP

EN

. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

55

ALA

RM

(55)

ST

RIK

E 3

HE

AT

1 R

OLL O

UT

OP

EN

HE

AT

SE

CT

1 C

HE

CK

GA

S R

OLL O

UT

S47

A

LA

RM

(55)

ST

RIK

E 3

HE

AT

1 S

15 L

IMIT

OP

EN

HE

AT

SE

CT

1 L

IMIT

OP

EN

. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

56

ALA

RM

(56)

HE

AT

1 C

AI S

WIT

CH

S18

HE

AT

SE

CT

1 C

HE

CK

CO

MB

US

TIO

N A

IR M

OT

OR

& P

RO

OF

SW

ITC

H

57

ALA

RM

(57)

ST

RIK

E 3

HE

AT

1 C

AI S

WIT

CH

S18

HE

AT

SE

CT

1 O

FF

CH

EC

K C

OM

BU

ST

ION

AIR

MO

TO

R &

PR

OO

F S

WIT

CH

58

ALA

RM

(58)

HE

AT

1 N

O P

RO

OF

GA

S V

ALV

E G

V1

HE

AT

SE

CT

1 C

HE

CK

IG

NIT

ION

CO

NT

RO

L, F

LA

ME

PR

OO

F, G

V1, G

AS

SU

PP

LY

59

ALA

RM

(59)

ST

RIK

E 3

NO

PR

OO

F G

AS

VA

LVE

GV

1H

EA

T S

EC

T 1

CH

EC

K IG

NIT

ION

CO

NT

RO

L, F

LA

ME

PR

OO

F, G

V1, G

AS

SU

PP

LY

60

ALA

RM

(60)

PR

IMA

RY

HE

AT

2 L

IMIT

OP

EN

S99

HE

AT

SE

CT

2 P

RIM

AR

Y H

EA

T L

IMIT

OP

EN

. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

61

ALA

RM

(61)

ST

RIK

E 3

PR

IMA

RY

HE

AT

2 L

IMIT

OP

EN

S99

HE

AT

SE

CT

2 P

RIM

AR

Y H

EA

T L

IMIT

OP

EN

. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

62

ALA

RM

(62)

HE

AT

2 L

IMIT

OP

EN

S100

HE

AT

SE

CT

2 S

EC

ON

DA

RY

HE

AT

LIM

IT O

PE

N. C

HE

CK

AIR

FLO

W, LIM

IT, A

ND

WIR

ING

.

63

ALA

RM

(63)

ST

RIK

E 3

HE

AT

2 L

IMIT

OP

EN

S100

HE

AT

SE

CT

2 S

EC

ON

DA

RY

HE

AT

LIM

IT O

PE

N. C

HE

CK

AIR

FLO

W, F

ILT

ER

, LIM

IT, A

ND

WIR

ING

.

64

ALA

RM

(64)

HE

AT

2 R

OLLO

UT

OP

EN

S69

CH

EC

K R

OLLO

UT

SE

NS

OR

AN

D G

AS

65

ALA

RM

(65)

ST

RIK

E 3

RO

LLO

UT

OP

EN

S69

CH

EC

K R

OLLO

UT

SE

NS

OR

AN

D G

AS

66

ALA

RM

(66)

HE

AT

2 C

AI S

WIT

CH

S45

HE

AT

SE

CT

2 C

HE

CK

CO

MB

US

TIO

N A

IR M

OT

OR

& P

RO

OF

SW

ITC

H

67

ALA

RM

(67)

ST

RIK

E 3

HE

AT

2 C

AI S

WIT

CH

S45

HE

AT

SE

CT

2 O

FF

CH

EC

K C

OM

BU

ST

ION

AIR

MO

TO

R &

PR

OO

F S

WIT

CH

68

ALA

RM

(68)

HE

AT

2 N

O P

RO

OF

GA

S V

ALV

E G

V3

HE

AT

SE

CT

2 C

HE

CK

IG

NIT

ION

CO

NT

RO

L, F

LA

ME

PR

OO

F, G

V3, G

AS

SU

PP

LY

69

ALA

RM

(69)

ST

RIK

E 3

NO

PR

OO

F G

AS

VA

LVE

GV

3H

EA

T S

EC

T 2

CH

EC

K IG

NIT

ION

CO

NT

RO

L, F

LA

ME

PR

OO

F, G

V3, G

AS

SU

PP

LY

70 -

72

Reserv

ed

73

ALA

RM

(73)

NE

TW

OR

K S

EN

SO

R E

RR

OR

CH

EC

K W

ITH

IN

TE

GR

AT

OR

FO

R R

EF

RE

SH

RA

TE

, N

ET

WO

RK

STA

TU

S L

IGH

TS

AN

D W

IRIN

G

74

ALA

RM

(74)

ZO

NE

SE

NS

OR

A2

CH

EC

K Z

ON

E S

EN

SO

R A

ND

WIR

ING

75

ALA

RM

(75)

OU

TD

OO

R T

EM

P S

EN

SO

R R

T17

CH

EC

K S

EN

SO

R A

ND

WIR

ING

76

ALA

RM

(76)

CH

EC

K 2

AM

P F

US

E H

UM

IDIT

Y S

EN

SO

R A

91

CH

EC

K S

EN

SO

R A

ND

WIR

ING

77

ALA

RM

(77)

DIS

CH

AR

GE

AIR

TE

MP

SE

NS

OR

RT

6C

HE

CK

SE

NS

OR

AN

D W

IRIN

G

78

ALA

RM

(78)

RE

TU

RN

AIR

TE

MP

SE

NS

OR

RT

16

CH

EC

K S

EN

SO

R A

ND

WIR

ING

79

ALA

RM

(79)

AD

D-O

N B

OA

RD

PR

OB

LE

MA

DD

-ON

BR

D P

RO

BLE

M, R

ES

ET

TO

CLE

AR

80

ALA

RM

(80)

AD

D-O

N B

OA

RD

PR

OB

LE

MA

DD

-ON

BR

D P

RO

BLE

M

81

ALA

RM

(81)

RE

HE

AT

SE

TU

P E

RR

OR

CH

EC

K R

EH

EA

T S

ET

TIN

GS

82

ALA

RM

(82)

CO

NT

RO

LLE

R R

ES

ET

NO

AC

TIO

N N

EE

DE

D

83

ALA

RM

(83)

INC

OR

RE

CT

SE

TT

ING

SC

HE

CK

CO

NF

IGU

RA

TIO

N

84

Reserv

ed

85

ALA

RM

(85)

INC

OR

RE

CT

HU

MID

ITR

OL S

ET

TIN

GS

CH

EC

K H

UM

IDIT

RO

L S

ET

TIN

GS

86

ALA

RM

(86)

CO

NF

LIC

TIN

G T

STA

T IN

PU

TC

HE

CK

TS

TA

T IN

PU

TS

FO

R S

IMU

LTA

NE

OU

S H

EA

T A

ND

CO

OL A

ND

WIR

ING

87

Reserv

ed

88

ALA

RM

(88)

CO

NT

RO

LLE

R P

RO

BLE

MIN

TE

RN

AL C

ON

TR

OLLE

R P

RO

BLE

M. R

ES

ET

TO

CLE

AR

.

89

Reserv

ed

Page 32

Ta

ble

8.

Ala

rm C

od

es

Ev

en

tC

od

eA

cti

on

Dis

pla

y M

essag

e

Ev

en

tC

od

e 90

ALA

RM

(90)

CO

NT

RO

LLE

R P

RO

BLE

MIN

TE

RN

AL C

ON

TR

OLLE

R P

RO

BLE

M. R

ES

ET

TO

CLE

AR

.

91

ALA

RM

(91)

OU

TD

OO

R E

NT

H S

EN

SO

R A

7C

HE

CK

EC

ON

DIP

SW

ITC

H A

ND

EN

TH

DIA

L S

ET

TIN

GS

, S

EN

SO

R A

ND

WIR

ING

92

ALA

RM

(92)

IND

OO

R E

NT

H S

EN

SO

R A

62

CH

EC

K E

CO

N D

IP S

WIT

CH

AN

D E

NT

H D

IAL S

ET

TIN

GS

, S

EN

SO

R A

ND

WIR

ING

93

ALA

RM

(93)

BA

CK

UP

MO

DE

CH

EC

K C

OM

M L

OS

S W

ITH

NE

TW

OR

K S

EN

SO

R

94

ALA

RM

(94)

BA

D Z

ON

E S

EN

SO

R S

ET

PO

INT

CH

EC

K S

ET

PO

INT

AN

D E

MS

PR

OG

RA

MM

ING

95

ALA

RM

(95)

SE

TT

ING

S H

AV

E C

HA

NG

ES

SE

TT

ING

S H

AV

E C

HA

NG

ED

AT

TH

E U

NIT

96, 97

Reserv

ed

98

ALA

RM

(98)

CO

NT

RO

LLE

R P

RO

BLE

MIN

TE

RN

AL C

ON

TR

OLLE

R P

RO

BLE

M. R

ES

ET

TO

CLE

AR

.

99

ALA

RM

(99)

OU

TD

OO

R E

CO

N S

EN

SO

R A

24

CH

EC

K S

EN

SO

R A

ND

WIR

ING

100

ALA

RM

(100)

AIR

VO

L C

ON

TR

OL S

ET

UP

ER

RO

RC

HE

CK

FO

R P

RO

PE

R IN

STA

LLA

TIO

N O

F G

P B

OA

RD

AN

D S

ET

TIN

GS

101

ALA

RM

(101)

MG

V C

ON

TR

OL S

ET

UP

ER

RO

RC

HE

CK

FO

R P

RO

PE

R IN

STA

LLA

TIO

N O

F G

P B

OA

RD

AN

D S

ET

TIN

GS

102

ALA

RM

(102)

GP

CO

NT

RO

L S

ET

UP

ER

RO

RC

HE

CK

FO

R P

RO

PE

R IN

STA

LLA

TIO

N O

F G

P B

OA

RD

AN

D S

ET

TIN

GS

103

ALA

RM

(103)

AD

VA

NC

ED

CO

NT

RO

L S

ET

UP

ER

RO

RC

HE

CK

PR

OD

IGY

SE

TT

ING

S

104

Reserv

ed

105

ALA

RM

(105)

AD

VA

NC

ED

EC

ON

CO

NT

RO

L S

ET

UP

ER

RO

RC

HE

CK

EC

ON

SW

ITC

HE

S, D

IALS

, A

ND

PR

OD

IGY

SE

TT

ING

S

106

ALA

RM

(106)

BU

ILD

ING

PR

ES

S S

EN

SO

R A

34

CH

EC

K S

EN

SO

R A

ND

WIR

ING

107

ALA

RM

(107)

DU

CT

SU

PP

LY P

RE

SS

SE

NS

OR

A30

CH

EC

K S

EN

SO

R A

ND

WIR

ING

108

ALA

RM

(108)

DU

CT

SU

PP

LY H

IGH

PR

ES

S S

EN

SO

R A

30

CH

EC

K S

EN

SO

R A

ND

WIR

ING

109

ALA

RM

(109)

ST

RIK

E 3

DU

CT

SU

PP

LY P

RE

SS

SE

NS

OR

A30

CH

EC

K S

EN

SO

R A

ND

WIR

ING

110

ALA

RM

(110)

WA

ITIN

G O

N N

ET

WO

RK

DA

TA

CH

EC

K N

ET

WO

RK

OR

CO

MF

OR

T S

EN

SO

R A

ND

WIR

ING

111

ALA

RM

(111

) C

ON

TR

OLLE

R P

RO

BLE

MIN

TE

RN

AL C

ON

TR

OLLE

R P

RO

BLE

M. R

ES

ET

TO

CLE

AR

.

112

ALA

RM

(112)

CO

NT

RO

LLE

R P

RO

BLE

MIN

TE

RN

AL C

ON

TR

OLLE

R P

RO

BLE

M. R

ES

ET

TO

CLE

AR

.

113

Reserv

ed

114

ALA

RM

(114)

CO

NT

RO

LLE

R P

RO

BLE

MP

OW

ER

NO

ISE

PR

OB

LE

M. R

ES

ET

TO

CLE

AR

.

115

ALA

RM

(115)

UN

IT O

FF

LIN

E F

OR

TE

ST

CH

EC

K P

RO

DIG

Y S

ER

VIC

E T

ES

T M

OD

E

116&

117

Reserv

ed

118

ALA

RM

(118)

NO

DIS

PLA

YD

ISP

LA

Y N

OT

DE

TE

CT

ED

119

STA

TU

S(1

19)

RE

SE

T C

AU

SE

D B

Y W

AT

CH

DO

G T

IME

OU

TC

ON

TA

CT

LE

NN

OX

120

ALA

RM

(120)

AD

D-O

N B

OA

RD

MC

B P

RO

BLE

MM

CB

CO

NF

IGU

RA

TIO

N S

ET

UP

PR

OB

LE

M. R

ES

ET

TO

CLE

AR

OR

AD

VA

NC

ED

SE

TU

P.

121

ALA

RM

(121)

LIN

E F

RE

Q D

OE

S N

OT

MA

TC

H U

NIT

CO

NF

IG

122

ALA

RM

(122)

24V

AC

PR

IMA

RY

VO

LTA

GE

LO

W

123

ALA

RM

(123)

24V

AC

PR

IMA

RY

VO

LTA

GE

HIG

H

124

ALA

RM

(124)

24V

AC

SE

CO

ND

AR

Y V

OLT

AG

E L

OW

125

ALA

RM

(125)

24V

AC

SE

CO

ND

AR

Y V

OLT

AG

E H

IGH

126

ALA

RM

(126)

LIN

E P

HA

SIN

G D

OE

S N

OT

MA

TC

H U

NIT

CO

NF

IG

127

Reserv

ed

128

ALA

RM

(128)

24V

AC

PO

WE

R L

OS

S

129

ALA

RM

(129)

VF

D S

HU

TD

OW

NV

FD

FA

ULT

DE

TE

CT

ED

. C

HE

CK

BE

LT A

ND

FO

R B

LO

WE

R O

VE

RLO

AD

. F

IX S

OU

RC

E O

F F

AU

LT A

ND

RE

SE

T M

2.

130

ALA

RM

(130)

VF

D B

YP

AS

S E

NG

AG

ED

VF

D B

YP

AS

S M

OD

E IS

EN

GA

GE

D. B

LO

WE

R M

AY

OR

MA

Y N

OT

BE

ON

. D

ISE

NG

AG

E A

T M

SA

V M

EN

U.

131

Reserv

ed

132

ALA

RM

(132)

VF

D B

YP

AS

S N

OT

CO

NF

IGU

RE

DV

FD

BY

PA

SS

MO

DE

HA

S N

OT

BE

EN

SE

LE

CT

ED

. U

NIT

OP

ER

AT

ES

AS

IF

BY

PA

SS

IS

NO

T IN

STA

LLE

D.

133

ALA

RM

(133)

CH

EC

KIN

G P

OW

ER

M2 U

NA

BLE

TO

DE

TE

RM

INE

CO

RR

EC

T P

HA

SE

/VO

LTA

GE

.

134

ALA

RM

(134)

LO

W S

UP

PLY

CF

MS

MA

RTA

IRF

LO

W™

EN

AB

LE

D R

TU

IN

DIC

AT

ES

AIR

FLO

W T

AR

GE

T C

AN

NO

T B

E A

CH

IEV

ED

. C

HE

CK

CA

US

E O

FA

IRF

LO

W R

ED

UC

TIO

N S

UC

H A

S D

IRT

Y F

ILT

ER

, C

HA

NG

ES

IN

DU

CT

WO

RK

, E

TC

135

ALA

RM

(135)

NO

AIR

FLO

WBLO

WER R

PM

IS T

OO

LO

W A

S I

ND

ICATES B

Y B

LO

WER S

TATU

S. TH

IS M

EAN

S T

HAT T

HE B

LO

WER I

S N

OT W

ORKIN

G."

Page 33

Ta

ble

8.

Ala

rm C

od

es

Ev

en

tC

od

eA

cti

on

Dis

pla

y M

essag

e

Ev

en

tC

od

e 136

ALA

RM

(136)

OU

TS

IDE

AIR

DA

MP

ER

/EC

ON

ME

CH

AN

ICA

LF

AU

LTBLO

WER R

PM

IS T

OO

LO

W A

S I

ND

ICATES B

Y B

LO

WER S

TATU

S. TH

IS M

EAN

S T

HAT T

HE B

LO

WER I

S N

OT W

ORKIN

G.

137

ALA

RM

(137)

LO

W O

UT

DO

OR

AIR

FLO

WO

UT

DO

OR

AIR

DA

MP

ER

. M

AY

BE

A S

TU

CK

CO

ND

ITIO

N.

139

ALA

RM

(139)

OU

TD

OO

R A

IRF

LO

W T

OO

HIG

HV

EN

TIL

AT

ION

CF

M IS

TO

O H

IGH

SO

TH

E R

TU

IS

WA

ST

ING

EN

ER

GY.

140

ALA

RM

(140)

CF

M T

AR

GE

T T

OO

LO

W

TH

IS S

ET

UP

MIN

XX

XX

CF

MV

ER

IFY

TH

E M

SA

V.B

LO

WE

R S

ET

TIN

GS

AN

D S

ET

TH

E C

M T

AR

GE

TS

AB

OV

E X

XX

X C

FM

141

ALA

RM

(141)

CF

M T

AR

GE

T T

OO

HIG

H

TH

IS S

ET

UP

MA

XX

XX

X C

FM

VE

RIF

Y T

HE

MS

AV

.BLO

WE

R S

ET

TIN

GS

AN

D S

ET

TH

E C

M T

AR

GE

TS

BE

LO

W X

XX

X C

FM

143

ALA

RM

(143)

OA

DA

MP

ER

ER

RO

RD

AM

PE

R D

IFF

ER

EN

TIA

L P

RE

SS

UR

E S

EN

SO

R V

ALU

E IS

NO

T W

ITH

IN T

HE

VA

LID

RA

NG

E. M

AY

BE

PR

OB

LE

M W

ITH

TH

E S

EN

OR

TU

BIN

G, H

IGH

RE

TU

RN

DU

CT

RE

SIS

TA

NC

E E

TC

.

144

ALA

RM

(144)

FIR

MW

AR

E U

PD

AT

EM

2 C

ON

TR

OL B

OA

RD

FIR

MW

AR

E U

PD

AT

E R

EC

OR

DE

D

145

ALA

RM

(145)

VC

B N

OT

PR

ES

EN

TS

MA

RTA

IRF

LO

W™

IS

IN

STA

LLE

D B

UT

VC

B B

OA

RD

IS

NO

T P

RE

SE

NT

/NO

T R

EC

OG

NIZ

ED

BY

M2.

148

ALA

RM

(148)

SM

AR

TA

IRF

LO

W C

ON

FIG

ER

RO

RS

MA

RTA

IRF

LO

W™

OPTIO

N I

S I

NSTALLED

BU

T B

LO

WER T

YPE I

S N

OT E

P C

APABLE O

R D

AM

PER I

S N

OT I

NSTALLED

.O

NLY B

LO

WER T

YPES M

(VG

D)

AN

D E

(ECM

) ARE E

P C

APABLE

.

149

ALA

RM

(149)

VC

B P

RE

SS

UR

E S

EN

SO

R E

RR

OR

HIG

H O

R L

OW

OU

T O

F R

AN

GE

RE

AD

ING

FO

R T

HE

VC

B1 P

RE

SS

UR

E S

EN

SO

R.

Page 34

Wiring Diagrams (036, 048, 060 Units)

Page 35

Wiring Diagrams (ACCESSORIES)

Page 36

Wiring Diagrams (ACCESSORIES)

P299J299A

1

2

3

B

4

5C

6

7

10

D

8

9

DI-1

R

C

DI-2

R

DI-3

R

DI-4

C

P304

USE DI3 TO CONNECT:

1. OVERFLOW SWITCH

2. PHASE MONITOR MODULE

USE DI2 TO CONNECT:1. OVERLOAD CONTACTS

J298

8

9

10

P153

J153

1

3

2

4

5

6

P1

93

J1

04

2

1 1

J1

93

2

TB37

1

3

2

4

K1

K2

K4

5

6

A130

5

6

Page 37

Wiring Diagrams (240, 300 Units) N

OT

E −

IF

AN

Y W

IRE

IN

TH

IS A

PPL

IAN

AC

E I

S R

EPL

AC

ED

IT M

UST

BE

RE

PLA

CE

D W

ITH

WIR

E O

F L

IKE

SIZ

E,

RA

TIN

G, T

ER

MIN

AT

ION

AN

D I

NSU

LA

TIO

N T

HIC

KN

ESS

.

WA

RN

ING

− E

LE

CT

RIC

SH

OC

K H

AZ

AR

D, C

AN

CA

USE

INJU

RY

OR

DE

AT

H .

UN

IT M

UST

BE

GR

OU

ND

ED

IN

AC

CO

RD

AN

CE

WIT

H N

AT

ION

AL

AN

D L

OC

AL

CO

DE

S.D

ISC

ON

NE

CT

AL

L P

OW

ER

BE

FOR

E S

ER

VIC

ING

.

S42

USE

D O

N ”

M”

VO

LTA

GE

UN

ITS

AN

DU

NIT

S W

ITH

HIG

H E

FFIC

IEN

CY

MO

TO

RS

ON

LY O

N U

NIT

S W

ITH

HU

MID

ITR

OL

OPT

ION

T43

T43

L14

L30

DI

1

DI

2

A55

EX

TE

RN

AL

HU

MID

ITR

OL

CO

NTA

CT

S

F6 A

ND

F10

FU

SES

AR

E U

SED

ON

”Y

”V

OLT

AG

E U

NIT

S O

NLY

S49

AN

D S

50 A

RE

PA

RT

OF

5VD

C C

IRC

UIT

Page 38

KEY COMPONENT

A55 PANEL, MAIN

A59 PANEL, COMPRESSORS 3 AND 4

A169 PANEL, MOTOR CONTROL

A184 CONTROL, VCB BOARD

B1 COMPRESSOR 1

B2 COMPRESSOR 2

B3 MOTOR, BLOWER

B4 MOTOR, OUTDOOR FAN 1


B10 MOTOR, EXHAUST FAN 1

B11 MOTOR, EXHAUST FAN 2

B13 COMPRESSOR 3

B20 COMPRESSOR 4





C1 CAPACITOR, OUTDOOR FAN 1


C6 CAPACITOR, EXHAUST FAN 1

C8 CAPACITOR, EXHAUST FAN 2





CB8 CIRCUIT, BREAKER T1

CB10 CIRCUIT BREAKER, MAIN DISCONNECT UNIT

CB18 CIRCUIT, BREAKER T18

F6 FUSE, EXHAUST FAN

F10 FUSE, OUTDOOR FAN MOTOR

F30 FUSE, TRANSFORMER T29 PRIMARY

F31 FUSE, TRANSFORMER T29 SECONDARY

HR1 HEATER COMPRESSOR 1




J11 JACK, GFI, RECEPTACLE

J18 JACK, EXHAUST FAN COMP

J24 JACK, EXHAUST FAN

J47 JACK, OUTDOOR FAN 1


J86 JACK, OUTDOOR FAN INTERFACE

J87 JACK, OUTDOOR FAN INTERFACE 2





J118 JACK, COMPRESSOR 3 AND 4, CONTROL

J119 JACK, COMPRESSOR 3 AND 4, INPUT

J132 JACK, BLOWER , EXHAUST FAN MOTOR 1

J133 JACK, BLOWER , EXHAUST FAN MOTOR 2

J138 JACK, EXHAUST FAN 2

J139 JACK, EXHAUST FAN 3

J263 JACK, HIGH AND LOW PRESSURE SWITCHES

J264 JACK, BLOWER DECK

J265 JACK, CONTACTORS AND RELAYS

K2,-1 CONTACTOR, COMPRESSOR 2

K3, -1 CONTACTOR, BLOWER

K10,-1,2 RELAY, OUTDOOR FAN 1

K14,-1 CONTACTOR, COMPRESSOR 3

K65-1,2 RELAY, EXHAUST FAN

K68,-1 RELAY, OUTDOOR FAN 2

K146,1 CONTACTOR, COMPRESSOR 4



Page 39


K153,-1,2 RELAY, OUTDOOR FAN 6

L14 VALVE, SOLENOID REHEAT COIL 1

L30 VALVE, SOLENOID REHEAT COIL 2

P18 PLUG, EXHAUST FAN COMP

P24 PLUG, EXHAUST FAN

P47 PLUG, OUTDOOR FAN 1


P86 PLUG, OUTDOOR FAN INTERFACE

P87 PLUG, OUTDOOR FAN INTERFACE 2





P118 PLUG, COMPRESSOR 3 AND 4, CONTROL

P119 PLUG, COMPRESSOR 3 AND 4, INPUT

P132 PLUG, EXHAUST FAN MOTOR 1

P133 PLUG, EXHAUST FAN MOTOR 2

P138 PLUG, EXHAUST FAN 2

P263 PLUG, HIGH AND LOW PRESSURE SWITCHES

P264 PLUG, BLOWER DECK

P265 PLUG, CONTACTORS AND RELAYS

P267 PLUG,OUTDOOR FAN AREA

P268 PLUG, TRANSFORMERS

P269 PLUG, HUMIDITROL

P299 PLUG, SAFETY

PT5 PRESSURE TRANSDUCER, ECONOMIZER

RT17 SENSOR, OUTDOOR AIR

S4 SWITCH, LIMIT HI PRESS COMPRESS 1


S11 SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 1


S42 SWITCH, OVERLOAD RELAY BLOWER MOTOR

S48 SWITCH, DISCONNECT

S49 SWITCH, FREEZE STAT COMPRESS 1





S87 SWITCH, LOW PRESS, COMP 1







Page 40

Tab

le 9

. M

2 u

nit

co

ntr

oll

er

sig

nal

refe

ren

ce d

iag

ram

63

24 V

AC

CO

M24V

AC

-S -

BU

S

22

32

32

33

23S

+S

2

P298

P299

P297

2

MS

9413-1

0-4

07

MS

9413-0

3-4

01

MS

9413-1

0-4

08

MS

9413-1

0-4

09

3

Pin

#L

ab

el

Descri

pti

on

Typ

eD

escri

pti

on

Part

Nu

mb

er

P297 T

herm

osta

tA

ssem

bly

MS

9413-1

0-4

07

1R

TR

AN

SF

OR

ME

R 1

24V

AC

PO

WE

R24V

AC

Header

& L

abel

MS

9413-1

0-0

11

2C

TR

AN

SF

OR

ME

R 1

24V

CO

MM

ON

24V

CO

MM

- H

eader

MS

LO

9408-0

10-5

76-9

60-0

00-0

0

3G

BLO

WE

R S

IGN

AL

24V

AC

DI

- Label

MZ

9400-1

0-0

07

4W

11S

T S

TA

GE

HE

AT

ING

24V

AC

DI

Scre

w t

erm

inal

MF

9306-0

02-0

A-0

02-G

5W

22N

D S

TA

GE

HE

AT

ING

24V

AC

DI

Scre

w t

erm

inal

MF

9306-0

06-4

3-0

00-G

6Y

11S

T S

TA

GE

CO

OLIN

G24V

AC

DI

Scre

w t

erm

inal

MF

9306-0

02-4

9-0

00-G

7Y

22N

D S

TA

GE

CO

OLIN

G24V

AC

DI

8O

CP

OC

CU

PIE

D S

IGN

AL

24V

AC

DI

9G

LO

GLO

BA

L C

ON

TR

OL IN

PU

T24V

AC

DI

10

RS

VR

ES

ER

VE

DN

A

P298 IA

Q In

terf

ace

Assem

bly

MS

9413-1

0-4

08

1R

TR

AN

SF

OR

ME

R 1

24V

AC

PO

WE

R24V

AC

Header

& L

abel

MS

9413-1

0-0

12

2C

TR

AN

SF

OR

ME

R 1

24V

CO

MM

ON

24V

CO

MM

- H

eader

MS

LO

9408-S

10-0

00

3IA

Q+

IND

OO

R A

IR Q

UA

LIT

Y0-1

0V

DC

AI

- Label

MZ

9400-1

0-0

08

4G

ND

IND

OO

R A

IR Q

UA

LIT

Y0-1

0V

DC

AI

Scre

w t

erm

inal

MF

9306-0

02-6

0-0

00-G

5H

UM

RH

SE

NS

OR

0-1

0V

DC

AI

Scre

w t

erm

inal

MF

9306-0

02-6

4-0

00-G

6G

ND

DIG

ITA

L G

RO

UN

DG

ND

Scre

w t

erm

inal

MF

9306-0

03-4

D-0

00-G

7T

MP

ZO

NE

SE

NS

OR

0-1

0V

DC

AI

Scre

w t

erm

inal

MF

9306-0

03-4

L-0

00-G

8D

O1

SE

RV

ICE

RE

LA

Y O

UT

PU

T24V

AC

DO

9G

ND

24 V

AC

CO

MM

ON

24V

CO

MM

10

DO

2E

XH

AU

ST

FA

N24V

AC

DO

P299 S

afe

tyA

ssem

bly

MS

9413-1

0-4

09

1D

I1S

MO

KE

DE

TE

CT

OR

(N

O)

24V

AC

DI

Header

& L

abel

MS

9413-1

0-0

13

2R

TR

AN

SF

OR

ME

R 1

24V

AC

PO

WE

R24V

AC

- H

eader

MS

LO

9408-0

10-0

75-9

60-0

00-0

0

3C

TR

AN

SF

OR

ME

R 1

24V

CO

MM

ON

24V

CO

MM

- Label

MZ

9400-1

0-0

09

4D

I2D

IGIT

AL I

NP

UT

2 F

OR

ME

R (

S42 &

S135)

24V

AC

DI

Scre

w t

erm

inal

MF

9306-0

03-0

H-0

00-G

5R

TR

AN

SF

OR

ME

R 1

24V

AC

PO

WE

R24V

AC

Scre

w t

erm

inal

MF

9306-0

02-0

P-0

02-G

6D

I3D

IGIT

AL I

NP

UT

3 F

OR

ME

R (

S149 &

A42 F

OR

A B

OX

)24V

AC

DI

Scre

w t

erm

inal

MF

9306-0

02-3

7-0

01-G

7R

TR

AN

SF

OR

ME

R 1

24V

AC

PO

WE

R24V

AC

Scre

w t

erm

inal

MF

9306-0

03-0

1-0

00-G

8D

I4D

IGIT

AL IN

PU

T 4

FO

RM

ER

(H

UM

IDIT

RO

L IN

PU

T)

24V

AC

DI

9C

TR

AN

SF

OR

ME

R 1

24V

CO

MM

ON

24V

CO

MM

10

RS

VR

ES

ER

VE

DN

A

Page 41

Tab

le 1

0.

M2 b

oard

co

nn

ecti

on

s d

iag

ram

Pin

#L

ab

el

De

scrip

tio

nTyp

e

1

0P

26

2 E

conom

oze

r co

ntr

ol

1R

24

VA

C P

ow

er

24 V

AC

2G

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Page 42

Quick Start Guide

CAUTIONCheck rooftop unit electrical power for proper voltage and phasing. Check gas train components.

1. Turn on unit, correct alarm issues as necessary.2. Follow GUIDED SETUP menu to properly configure unit (see Page 9).3. Be sure unit is in normal operating mode as seen in display (COOLING, HEATING, IDLE, etc).4. Conduct unit startup to verify operation under SERVICE-> TEST menu (see Page 12).5. Insert USB memory stick into display cover to verify service and collect unit information.

Control Mode Menu Setup Needed Tips

THERMOSTAT (Factory set for 2 stage thermostat) � Check 2 AMP fuse if wiring error.

� Check LEDs for signals.

� Check ground switch position.

LOCAL MODE Change default backup setpoints; seeSETTINGS -> CONTROL -> LOCAL(Page 17).

� Give unit time to startup, error codes 74 and 93are expected.

� Humidity control requires sensor or error code 76

MSAV Change motor torque; see SETTINGS -> CONTROL -> MSAV(Page 19).

� Use LENNOX MSAV trained technician.

� Final motor CFM needs to be set by Test andBalance technician

� Blower charts are located in unit EHB.

BACnet Select control mode; see SETTINGS -> CONTROL -> BACNET(Page 18).

� Setup information to be verified with integrator.

� Follow wiring instructions including networktermination

� Remember to set MAC address 0-127

� Expert level BACnet service manual available.

LonTalk Select control mode; see SETTINGS-> CONTROL -> LONTALK(Page 18).

� Setup information to be verified with integrator.


� XIF file available. Neuron ID on sticker.

� Expert level LonTalk service manual available.

L Connection Select control mode; seeSETTINGS -> CONTROL -> LCONN(Page 17).


� Comfort Sensors are 24 VAC polarity sensitive.

� All network devices need to be correctlyaddressed

Damper Select control mode; seeSETTINGS -> SETPOINTS -> DAMPER(Page 16).

� Verify damper minimum positions

� Refer to Economizer section of manual for moredetail

Reheat Select sensor type; see SETTINGS -> CONTROL -> REHEAT(Page 18).

� Two possible connections, SENSOR andHUMIDISTAT

� Analog sensor wiring is polarity sensitive

For Lennox Service Support 1-800-4LENNOX. For Lennox Commercial website, go to www.lennoxcommercial.com.

Page 43

Revision History

12/2009 Initial production release.

6/2011 Revised software support; (3/11); add LONTALK in table on page 4; remove SmartWire Repair Tool Kit

11/2011 New firmware upload procedures; MSAV additions.

3/2013 Change diagram 537108-01 to 537108-02; revise trademarks throughout manual; added error code 147;DB1 menu changes; changes to economizer operation for new hardware.

6/2013 Add information concerning SmartAirflow™.

7/2013 Updated information concerning UNIT F/C options on page 6 and 15.

Page 1507030−01

��05/12

��

INSTALLATION INSTRUCTIONS FOR ECONOMIZERS AND OUTDOOR AIR HOODSUSED WITH LG/LC 036, 048, 060, 072 UNITS

Litho U.S.A. 507030−015/2012Supersedes 506197−01

2012 E1ECON ECONOMIZERS

ECONOMIZERS

Note − Disregard economizer installation section when

dampers are factory−installed.



1− Economizer damper assemblyA

1− GEDB (gravity exhaust / barometric relief damper)

assembly

1− Exhaust hood kit containing:

1−Exhaust hood topA

2−Hood sidesC

1− Outdoor air hood kit containing:

1−Outdoor air hood topA

2−Hood sidesD

1− BirdscreenD

1− GED sealD

2− Birdscreen bracketsD

1− Bag assembly containing:

#10−32 X 1/2 Self−drilling screws

#10−16 X 5/8 Self−drilling screwsAAlready in place when economizer is factory−installed.BOptional GED already in place when economizer is

factory−installed; shipped separately when PEF is

factory−installed.CShipped under the exhaust air cover when economizer

is factory−installed.DShipped in the blower section when economizer is

factory−installed.

Package 1 of 1 (ordered separately) contains:

Used in horizontal airflow applications only

1− Return air cover

Order Of Installation:

Return air cover (horizontal airflow)

Economizer

Mixed air sensor (R1)

Remove GED (horizontal airflow and PEF options)

Optional OA/RA sensors

Power exhaust fans

GED seal in unit (PEF option)

GED in lower hood (horizontal and PEF options)

RA Transition (horizontal airflow)

RA duct (horizontal airflow)

Lower outdoor air hood

Upper outdoor air hood

WARNINGImproper installation, adjustment, alteration, ser-vice or maintenance can cause property damage,personal injury or loss of life. Installation and ser-vice must be performed by a qualified installer, ser-vice agency or the gas supplier


Application

The E1ECON economizer is used with LG/LC units in

downflow and horizontal air discharge applications.

See table 1. See table 2 for the optional gravity exhaust

kit. The economizer uses outdoor air for free cooling

when temperature and/or humidity is suitable.

Optional field−provided sensors may be used instead

of unit sensors to determine whether outdoor air is

suitable for free cooling. Refer to Economizer Board

Settings section and table 3.

TABLE 1

Economizer

Unit Part No.*

036, 048 90W59 609258−01

060, 072 90W60 609258−02

*Kits include GED and hoods.

TABLE 2

Gravity Exhaust Kit

Description Unit Part No.

*Used when power ex-haust is either field−installed or not installed.

036, 048 74W38 606568−01

060, 072 74W39 606568−02

Used when power ex-haust is factory−installed.

036, 048 74W89 605993−01

060, 072 72W90 605993−02

*Kits include hoods.

Page 2

TABLE 3

ModeField−Provided

Sensors

Dampers will modulate to 55°F

discharge air (RT6) when:

TMP None Needed

OA temp. (RT17) is less than RA

temp. (RT16) or when the Energy

Management System sends an

economizer enable message.**

ODE C7400OA enthalpy* (A7) is less than

enthalpy setpoint.

DIF (Two) C7400OA enthalpy (A7) is less than

RA enthalpy (A62).

GLO

Energy Manage-

ment System With

Global OutputGlobal input is energized.

*Temperature + humidity= enthalpy.

**Energy management systems may require additional

field−provided sensors; refer to manufacturer’s instructions.

Install Economizer − Downflow

1− Open unit end panel and filter access panel. See

figure 1. When gravity or power exhaust are

field−installed, remove and discard the lower panel.

2− Remove and retain sensors from mounting bracket.

See figure 2. Remove mounting bracket and discard.

3− Install damper assembly through end of unit. Fit

opening in bottom of damper assembly over the

return air opening. See figure 4.

4− Install retained sensors in the side of the economizer.

See figure 4.

5− Disconnect jumper plug P3 from unit jack J3.

Connect economizer plug P4 to unit jack J3 as

shown in figure 3.

Lower panel provided only when economizer isfactory−installed without gravity or power exhaust.

Remove and discard when field−installingGED and/or PEF.

FIGURE 1

UNIT

FILTER ACCESSPANEL

UNIT ENDPANEL

FIGURE 2

REMOVE SENSORS AND BRACKET

SENSORBRACKET

A2 SENSOR(UNITS WITH DDC

CONTROL)

RT16SENSOR

SMOKE DETECTOR(WHEN EQUIPPED)

FIGURE 3

CONNECT ECONOMIZER PLUG P4 TOUNIT JACK J3

FILTERSECTION

EVAPORATORCOIL

J3

P4

Page 3

ECONOMIZER INSTALLATION

ECONOMIZER

FIGURE 4

RETURN AIROPENING

UNIT

B7DAMPER MOTOR

A2 SENSOR(UNITS WITH DDC

CONTROL)

RT16SENSOR

SMOKE DETECTOR(WHEN EQUIPPED)

Page 4

GED (Barometric Relief Dampers)

Note − GED is optional when economizer is factory−installed.

Remove GED from the economizer (when present) and

install in the exhaust air hood when:

�Optional power exhaust fans are installed

�Economizer is installed in horizontal air flow

1− Remove the GED from the economizer. See figure 5.

2− Install the GED in the exhaust or lower hood as shown

in figure 7.

REMOVE GED

FIGURE 5

Outdoor Air Hoods

Factory−Installed Economizers Only −

Both hood tops and pivot brackets are secured to unit.

The lower hood is provided and installed only when the

economizer is equipped with an optional GED. Hood

parts are located under the exhaust panel and in blower

section. Lift hood tops and assemble hoods as described

for field−installed economizers.

1− Make sure all sensors and outdoor air section

accessories are installed before installing hoods.

2− Install pivot brackets and seal on unit as shown in

figure 6.

3− Assemble hoods as shown in figure 7. Slide top of

hoods into the ends of pivot brackets. Install

birdscreen bracket after birdscreens are in place.

4− Install hoods on unit as shown in figure 8.

5− Caulk ends of pivot bracket to seal watertight.

PIVOTBRACKET

MULLION

REMOVE AND RE-USE SCREWS (3) TOINSTALL BRACKET

FIGURE 6

INSTALL PIVOTING BRACKETS AND GED SEAL(FIELD−INSTALLED ECONOMIZERS ONLY)

INSTALLPIVOT

BRACKETS

INSTALLGEDSEAL

MAKE SURE SEALIS INSTALLED

BEFORE HOOD

UNIT TOP

SIDE VIEW

POWER EXHAUST SHOWN;GRAVITY EXHAUST LOCATED

HERE WHEN UNIT IS NOTEQUIPPED WITH PED

Page 5

FIGURE 7

ASSEMBLE HOODS

INSTALL LOWER BRACKETBEFORE INSTALLING

BIRDSCREEN

BIRDSCREEN

SECURE TOP BRACKETWITH SCREW AFTER

BIRDSCREEN IS IN PLACE

GED INSTALLED IN HOODS WHEN POWEREXHAUST IS PRESENT. GED INSTALLED INPOWER EXHAUST LOCATION WHEN UNIT

IS NOT EQUIPPED WITH POWER EXHAUST.SEE FIGURE 5.

OUTDOOR AIR HOOD

EXHAUST OR LOWER HOODLOWER HOOD INSTALLED

ONLY WHEN ECONOMIZER ISEQUIPPED WITH A GED

Page 6

FIGURE 8

INSTALL HOODS

INTAKE

EXHAUST

PIVOTBRACKET MULLION

UNIT TOP

SIDE VIEW

HOOD

CAULK

CAULK

LOWER HOOD INSTALLEDONLY WHEN ECONOMIZER IS

EQUIPPED WITH A GED

Page 7

Install Economizer − Horizontal

A field fabricated return air duct transition and duct inlet

must be installed in horizontal applications.

1− Remove unit end panel. See figure 9.

2− Install the downflow return air cover in horizontal

airflow applications. Secure with #10 sheet metal

screws provided in kit. See figure 9.

3− Make sure the horizontal return air cover on the back

side of the unit remains in place. The opening is used

when an economizer is not installed. See figure 10.

4− Install the economizer and R1 mixed air sensor and

connect wiring as shown in appropriately named

sections of this manual.

FIGURE 9

DOWNFLOWRETURN AIR COVER

UNIT

UNIT ENDPANEL

HORIZONTAL AIRFLOW

BACKOF UNIT

DO NOT ATTACHRETURN AIRDUCTWORK

HERE

SUPPLYAIR

RETURNAIR

FIGURE 10

5− Install the field−fabricated return air duct transition

and duct inlet on the unit end. See figure 11. Support

the transition and duct inlet as needed.

6− Install the lower (exhaust) hood on the return air duct.

The GED should already be installed in the hood as

shown in the �GED" section of this manual.

7− Install the upper hood on the unit as shown in

appropriate section of this manual.

RETURN AIRDUCT INLET


OPENING

SUPPLYAIR DUCT

RETURNAIR DUCT

EXHAUST HOOD

RETURN AIRDUCT TRANSITION

OUTDOORAIR HOOD

TOP VIEW

BACK VIEW

EXHAUSTAIR

This opening notused in

HorizontalApplications

with Economizer

Baro

metr

ic R

elie

f H

ood

and D

am

pers

HORIZON−TAL

RETURNAIR

OPENING

RETURN AIRDUCT TRANSITION

ECONOMIZERDAMPERS

RETURNAIR INLETSUPPLY

AIR OUTLET

FIGURE 11

TYPICAL HORIZONTAL APPLICATION

12/09 506217−01

�� Page 1

CONTROLSKITS AND ACCESSORIES Litho U.S.A.

�2009 Lennox Industries Inc.Dallas, Texas, USA

506217−01 12/09Supersedes 505080M

LonTalk® MODULE KIT

INSTALLATION INSTRUCTIONS FOR LONTALK MODULE KIT(11W28) USED WITH LG/LC/LH & SG/SC AND ENERGENCE� ROOFTOP UNITS

Table of Contents

Application 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuring IMC / M2 Unit Controller 4. . . . . . . . . . . . Communications Check Out 5. . . . . . . . . . . . . . . . . . . . LonWorks Network Connection 6. . . . . . . . . . . . . . . . . . Network Cable 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Network Limits 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Network Integration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Update Rate 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Start Up & Normal Unit Operation 7. . . . . . . . . . . . . . Zone Sensor Setpoints 7. . . . . . . . . . . . . . . . . . . . . . . . . Inputs to/Outputs from IMC / M2 Unit Controller 8. . . Alarm Codes 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NOTE − Disregard shipping and packing list and installation

sections when module is factory−installed.



1− LonTalk module

4− #6 − 32 X 7/8" Screws

1− Mounting plate (used on 090−300S units only)

2− #10 − 16 X 5/8" Sheet metal screws (used on

090−300S units only)

1− 3−ft. length SYSBUS cable

1− 3 ft. length thermostat wire

1− Wiring diagram

Technical Assistance

For assistance contact Lennox Technical Support at800−453−6669.

Version Required

This module requires a rooftop unit IMC M1−7 (version 5.02or higher), M1−8, or M2 Unit Controller. An IMC upgrade kit

is available for earlier M1−7 versions. M1−6 and earlier IMCversions cannot be upgraded for use with the LonTalkmodule. M1−8 displays version when powered up in thescrolling text (may need to clear error codes). For display-ing version on M1−7:

1. Locate IMC board in compressor area. Refer to IMCmanual provided with rooftop unit.

2. Set the MODE DIP �UNIT TEST" and �RECALL"switches to �ON" (see figure 2).

3. The IMC LEDs will display the current IMC version(see figure 1).

4. Be certain to return the �UNIT TEST" and �RECALL"switches to �OFF" after viewing the version number.Communication to the IMC is interrupted while theseMODE DIP switches are �ON".

ON

UNIT TEST

RECALL

ECTO

TEMP

OPT2

SHIFT

MODESet the MODE DIP�UNIT TEST" and �RE-CALL" switches to �ON".

LED will display cur-rent software version.

Figure 1. Check M1−7, M1−8 Software Versionand Address

WARNINGImproper installation, adjustment, alteration, ser-vice or maintenance can cause property damage,personal injury or loss of life. Installation and ser-vice must be performed by a qualified installer orservice agency.

Page 2

LONWORKS SERVICEPIN

LONWORKS NETWORKCONNECTION

POWER INDICATION LED

24VAC POWER CONNEC-TION

MOUNTING HOLES (4)

SYSBUS

+ −

24VACHOTCOM

LONWORKS NETWORKTRANSMIT LED (L1)

LED (L2) NOT USED

LONWORKS NETWORKRECEIVE LED (L3)

SYSTEM READY LED

SYSBUS (SBUS) NET-WORK CONNECTION

Figure 2. LonTalk® Module

Application

The LonTalk module allows communication between the

Lennox unit controller and a LonWorks® network. Themodule translates input and output variables between Len-nox L Connection® protocol and the LonWorks network.

The LonTalk® Module has been developed to communi-cate with building automation systems. The functional pro-files are proprietary in content and will require the integra-tor to use the datapoint information included in the servicemanual.

Either a Lennox zone sensor or a LonTalk network zone sen-sor is required to send the zone temperature to the unit con-

troller.

WARNINGElectric shock hazard. Can causeinjury or death. Before attempting toperform any service or maintenance,turn the electrical power to unit OFF atdisconnect switch(es). Unit may havemultiple power supplies.

Installation


1. Disconnect all electrical power to unit.

2. Open compressor section access doors.

3. Begin installation depending on unit size as follows:

A Box (036−060 units)�Position the LonTalk module

in the compressor section as shown in figure 3. Secure

with four #6 screws.

B, C, & D Box (150/360 units)�Position the mount-

ing plate in the location shown in figure 5. Secure with

7/8" screws. Install the LonTalk module on the mount-

ing plate and secure with #6 screws.

E Box (420/600 units)�Position the mounting plate

beneath the IMC board as shown in figure 4. Secure

with four #6 screws.

4. Route the SYSBUS network cable to the IMC SYS-BUS terminal block. Secure network cable away fromall power cables. Connect the cable shield drain wireto the �G" terminal on the controller. Do not connect thecable shield drain wire to the LonTalk module (see fig-ure 6).

5. For M1−7, M1−8�Locate the thermostat wire providedin this kit. Connect one wire between the LonTalk mod-ule 24v. hot and the rooftop unit TB1 terminal 6. Con-nect the other wire between the LonTalk module com-mon and the rooftop unit TB1 terminal 7. See wiringdiagram provided in this kit or on the inside of the com-pressor access panel.

5. For M2�Connect power leads to gray COM (24VAC

return) and the red 24VAC service wire terminals.

6. If module is field−installed, locate the temperature con-trol wiring diagram sticker on the inside of the com-pressor access panel. Affix the C68 temperature con-trol wiring diagram (provided in this kit) over theexisting diagram.

Page 3

LONTALK MODULE

Figure 3. LonTalk Module (036−060 units, A box)

LONTALKMODULES−Class − E Box 420−600 A55

Figure 4. LonTalk Module (420/600 units, E Box)

ALIGN DIMPLES IN UNITMULLION WITH ENGAGINGHOLE IN MOUNTING PLATEFLANGE; SECURE WITH 5/8"SHEET METAL SCREW.

IMC / M2 BOARDHAT SECTION

MOUNTINGPLATE

IMC / M2BOARD

POSITION HOLE INMOUNTING PLATEFLANGE OVER IMCBOARD HAT SECTIONSCREW

LONTALKMODULE

Figure 5. LonTalk Module (150/360 units (B, C, & D box)

Page 4

BACnet�� Listed

TB1−7 (M1) J2 (M2)

LONWORKSNETWORK

COMMUNICATIONCABLE (TWISTED PAIR)

1/2" MOUNTING STANDOFF (4).USE #6 SCREWS TO SECURE.

TB61

1 2 1 2

TB63

TB62

A147

SYSBUS+ −

24VACHOT COM

BELDEN 8471

OR EQUIVALENT

TWISTED PAIR

CABLE

M1−7. M1−8Integrated

ModularController

M2 UNITCONTROLLERDETAIL A

TRANSMIT LEDTX

BUS

IMC

124816

UNIT ADDRESS

DIP SWITCH

NETWORK LED

TRANSMITLED

M1−7, M1−8IMCDETAIL B

NETWORK

LED

SHIELD WIRE NOTCONNECTED

M2 UnitController

TB1−6 (M1) J18 (M2)

Figure 6. LonTALK Module Wiring

Zone Sensor Installation

The unit controller is factory set in local thermostat systemmode. In this mode the unit will respond to standard 24VAC thermostat signals that are hardwired to the unit TB1

field wiring terminal block (M1) or SmartWire� connec-tions (M2). For LonWorks network installations the unitcontroller uses a local zone sensor or a remote LonTalkthermostat zone sensor to operate the unit instead of a lo-cal thermostat.

Install the sensor according to manufacturer’s instructions.

NOTE − Lennox zone sensor requires twisted pair shielded

cable.

NOTE − LonTalk zone sensor must be commissioned ac-

cording to manufacturer’s instructions.

Configuring the Unit Controller

Settings: M1 Controllers

Use the IMC pushbutton and DIP switches to manually ad-just the following control parameters (see IMC manual). APC can also be used with Unit Controller software and a

PC converter.

Lennox Zone Sensor Installed:

1. Set ECTO 6.01 to option 3 (zone sensor system modewith return air sensor back−up).

2. Set ECTO 6.17 to option 1 (continuous blower duringoccupied).

3. Set ECTO 6.02−6.05 as specified (back−up occupiedand unoccupied heating and cooling setpoints).

Page 5

LonTalk Zone Sensor Installed:

1. Set ECTO 6.01 to option 3 (zone sensor system modewith return air temperature back−up).

2. Set ECTO 6.17 to option 1 (continuous blower duringoccupied).

3. Set ECTO 5.27 to option 2 (network zone sensor op-tion).

IMC Settings:

1. Be sure the occupied 24 VAC input is energized byadding a jumper wire between TB1−8 and 9. In theevent that communication is lost between the LonTalkmodule and the IMC, the IMC will operate in the occu-pied mode and use the occupied backup setpoints.

2. Change IMC UNIT ADDRESS DIP switch to 2 (see fig-ure 7).

0200

+0=2

1248

16

SET THE ADDRESS DIPSWITCH TO 2

Figure 7. Address DIP Switch

Settings: M2 ControllersOn the M2 Unit Controller, select SETTINGS > CONTROL> L CONN as shown in the following diagram; default set-ting for ADDR (address) is 2. Confirm the address andchange if necessary.

L CONN

ADDR:02

CONTROL

SETTINGS

On the M2 Unit Controller, select SETTINGS > CONTROL> LONTALK as shown in the following diagram; default set-tings will be used. You may adjust those settings to suit thebuilding’s requirements. The following diagram shows theLONTALK menu’s structure and how to make changes.

Use

arr

ow

s t

o m

ove

CONTROL MODE

BACKUP SENSOR

OCP HEAT BU STPT 70.0ºF

UNOCP HEAT BU STPT 60.0ºF

OCP COOL BU STPT 75.0ºF

UNOCP COOL BU STPT 85.0ºF

STARTUP DELAY (2 − 30) 2 MIN

OVERRIDE TIMER (0 8HR) 1 HR

BLOWER ON OCP

NETWORK COMFORT SENSOR

LONTALK

CONTROL

CYCLES ORCONTINUOUS

1. NO BACKUP2. TSTAT 3. RET AIR SENSOR

MONITOR ONLYZONE

SETTINGS

Communication Check−Out

LonTalk Module CommunicationUse the following table as a guide once the controller andLonTalk Module are connected and powered (LEDs areshown in Details A and B in figure 6).

LED Action

BUS and XMITLEDs flash.

None. Indicates normal communica-tion.

BUS and XMITLEDs are off.

1−Check cable connection between themodules.

2−Reverse polarity of the cable betweenthe and LonTalk Module.

3−Check 24VAC power to LonTalk mod-ule.

BUS LED flashesbut XMIT LED isoff.

1−Make sure unit address is set to 2.

2−Make sure MODE DIP RECALLswitch is OFF. (M1 controllers only)

3−Make sure MODE DIP ECTO switchis OFF. (M1 controllers only)

4−Make sure MODE DIP UNIT TESTswitch is OFF. (M1 controllers only)

LonWorks Network CommunicationUse the following table as a guide once the LonWorks net-work is set up and operating.

LED Action

LonWorks communica-tion LEDs L1 & L3 flash.

None. Indicates normal communication.

LonWorks communica-tion LED L1 & L3 are off.

1−Check LonWorks network con-nections.

2−Make sure LonWorks network iscommissioned.

3−Make sure 24 volts is con-nected to the LonWorks module.

Page 6

LonWorks Network Connection

The LonTalk module has an FTT−10A Free Topology

Transceiver for network communication. The FTT−10Atransceiver network supports free topology wiring and willaccommodate bus, star, loop, or any combination of thesetopologies. The module can be located at any point alongthe network wiring. This capability simplifies system instal-lation and makes it easier to add nodes when required.

LonWorks Network Cable

The LonWorks TP/FT−10 network requires Echelon quali-fied twisted−pair communication cables such as Belden8471 or NEMA Level 4 cables. Other Echelon approvedequivalent cables may also be used depending on the ap-plication. The Belden 8471 or NEMA Level 4 cables arerated for plenum use.

The network cable should be routed using best practices toavoid induced noise. Do not route alongside power lines, orin proximity to high voltage or high frequency devices, suchas ignition controls and variable frequency drives. The av-

erage temperature of the wire must not exceed 131°F(55°C).

Network Limits (Free Topology)

The LonWorks TP/FT−10 free topology network is limited

to a maximum of 64 nodes per segment. The maximum to-tal bus length and the maximum node−to−node length is1640 ft. (500m) for Belden 8471 or NEMA Level 4. Maxi-mum lengths are less for other smaller wire size cables.

Only one termination circuit module is required at any loca-tion along the network. Refer to Echelon LonWorks

FTT−10 Transceiver User’s Guide for additional details.

Free Topology Networks

Free topology segments require a termination circuit forproper performance. Only one termination circuit moduleis required at any location along the network (see figure 8).

Network Limits (Doubly−Terminated Topology)

The LonWorks TP/FT−10 Doubly−Terminated topologynetwork is limited to a maximum of 64 nodes per segment.

The maximum total bus length is 5000 ft. (1524m) for Bel-den 8471 or NEMA Level 4. Maximum bus lengths are lessfor other smaller wire size cables.

The maximum stub length is 9.8 ft. (3m). In many casesthis bus network is connected in a daisy chain mannerwhere the bus is wired directly to each node, so stub lengthis zero.

Two termination circuit modules (37X75) are required foreach segment. One must be located at each end of the net-work (see figure 9).

LOOPTOPOLOGY

Termination

STARTOPOLOGY

MIXED TOPOLOGY(SINGLY TERMINATED)

Termination

Termination

Figure 8. Free Topology Networks

TerminationTermination

Figure 9. Doubly-Terminated Topology

Page 7

Network Integration

A network configurating tool such as LonMaker® is re-quired to commission the LonWorks network. Press theservice button on the LonTalk module to generate a servicemessage that contains the Neuron ID and all informationrequired to connect it to a system and to configure the

module.

Other commissioning methods may be used. The Neuronaddress is located on the Lontalk module.

An external Interface File (XIF) is available for configura-tion prior to installation.

The Lontalk module only supports service type ’acknowl-edged service’. For Tridium/JACE integration, this is

equivalent to ’critical binding’ on all variables.

Data Update Rate

If a LonTalk Zone Sensor is installed (ECTO 5.27 for M1controllers), the nviSpaceTemp point must be updated pe-riodically. If nviSpaceTemp is not updated for a period of 5

minutes, the IMC will go into the back−up modes describedin the �Lontalk Connection Failure" section:

It is highly recommended that the nviSpaceTemp variable,if it is used, be updated at least every 2 minutes.

Start−Up Operation (Before LonWorks Network is Commissioned)

Lennox Zone Sensor Installed�Prior to commission-ing, no LonWorks setpoint is available. The unit will be off.

Two minutes after power−up (ECTO 5.25), the IMC will op-erate the unit based on the IMC ECTO unoccupied backupsetpoints (heating = 60°F, cooling = 85°F) and current zonetemperature read by the Lennox zone sensor.

LonTalk Zone Sensor Installed�Prior to commission-ing, neither LonWorks setpoint nor sensor data are avail-able. The unit will be off.

Five minutes after power−up, the controller will operate theunit based on the unoccupied backup setpoints (heating =60°F, cooling = 85°F) and the current zone temperatureread by an additional Lennox zone sensor if installed. If theLennox zone sensor is not installed, the return air tempera-ture sensor is used as backup (ECTO 6.01).

Normal Operation(After LonWorks Network is Commissioned)

The occupancy of the space can be determined using anycombination of the following control points:

� LonWorks Network scheduling

� Manual override

� Space occupancy sensor

Lennox Zone Sensor Installed�The unit is off for up totwo minutes after power−up (ECTO 5.25) unless the Lon-

Works Network sends a setpoint. The unit will operatebased on this setpoint and the temperature from the Len-nox zone sensor.

In addition to control points, space occupancy can bemanually overridden using a Lennox zone sensorequipped with an optional after hours switch.

LonTalk Zone Sensor Installed�The unit is off for up to

five minutes after power−up unless the LonWorks Networksends a setpoint and LonTalk zone sensor data. The unitwill operate based on this setpoint and temperature data.

Zone Sensor Setpoints

The unit controller typically uses four setpoints and the

zone temperature to operate the unit when a zone sensoris installed.

Because the LonTalk network provides a single setpoint in-put, the unit controller will use the zone temperature anddeadband setpoint (ECTO 6.15) to determine the setpointin the occupied mode. During the unoccupied mode, theunit controller will use the zone temperature and the differ-

ence between unoccupied heating and cooling setpoints.

See figure 10 for an example of setpoints when the unitcontroller is operating in default mode.

Unocc. Cooling Setpoint

82.5°F

57.5°F

Unocc. Heating Setpoint

LonTalk Network

(nviSetPoint + nviSetptOffset)70°F

Occ. Cooling Setpoint

71.5°F

68.5°F

Occ. Heating Setpoint

95°F Cooling MaximumSetpoint

40°F HeatingMinimum Setpoint

3°F (ECTO 6.15)

Autochangeover

deadband

25°F (ECTO 6.05−6.03)Difference between unoc-cupied heating and cooling

backup setpoints.

Figure 10. Unit Controller Default Setpoint Example (Zone Sensor Installed)

Page 8

Connection Failure

Control following a connection failure depends on where the failure occurs, and which input device has been used.

Between Unit Controller and LonTalk Module LonWorks Network

LennoxZoneSensor

1− During the 5 minutes following a failure, the unit controller cycles

on last setpoint.

2− Unit controller resets. No heating or cooling during 2 minutes

(ECTO 5.25) following reset.

3− Unit controller cycles based on ECTO backup setpoints.

4− Occupancy is determined by hardware input at TB1 ( for M1), or

Prodigy setup (for M2).

1− Unit controller cycles on last setpoint.

2 − Last occupancy input is used.

LonTalkZoneSensor

1− During 5 minutes following failure, the unit controller continues cur-

rent operation: heat, cool, or off.

2− Unit controller resets. No heating or cooling during 5 minutes fol-

lowing reset.

3− Unit controller uses ECTO backup setpoints.

4− Unit controller attempts to use Lennox zone sensor as backup. If

this fails, Unit controller uses return air sensor backup.

5− Occupancy is determined by hardware input at TB1 ( for M1), or

Prodigy setup (for M2).

1− During 5 minutes following failure, Unit con-

troller continues current operation: heat,

cool, or off.

2− Unit controller uses ECTO backup set-

points.

3− Unit controller attempts to use Lennox zone

sensor as backup. If this fails, Unit controller

uses return−air−sensor backup.

4 − Last occupancy input is used.

Network Variables − See BACnet Module Service Literature.

Alarm Codes See the Unit Controller user guide for a list of alarm codes.

6/2013 506693-01

�� Page 1

�2013 Lennox Industries Inc.Dallas, Texas, USA

KITS AND ACCESSORIES Litho U.S.A.

506693-01 6/2013Supersedes 7/2011

Prodigy® LonTalk®

MODULE KIT

INSTALLATION INSTRUCTIONS FOR LONTALK® MODULE KIT (54W27)USED WITH ENERGENCE� ROOFTOP UNITS

General

Product NameLonTalk® Control Kit, COCTRL65FF1 - Cat No. 54W27.

Version Required

This module requires Prodigy® unit controller M2 version

7.07 or higher.

The LonTalk® module allows communication between the

Lennox Prodigy® unit controller and a LonWorks® net

work. The module is LonMark® certified to design guide

lines version 3.4.

Technical Assistance

For assistance, contact Lennox Technical Support at800-453-6669.

Installation

NOTE - a small flat-head screw driver is required to con

nect the communication wire to the SmartWire� connec

tor.

1. Remove power to the unit.

2. Open the compressor access doors.

3. Plug the LonTalk module (see LonTalk module in figure1) onto the M2 Unit Controller. Guide pins will align themodule with the M2 board connector.

4. Connect the LonTalk SmartWire� connector asshown in figure 1.

5. Upon power up, the M2 Unit Controller will recognizethe LonTalk module and begin communications afterthe LonTalk module has been integrated into the network.

WARNINGImproper installation, adjustment, alteration, service or maintenance can cause personal injury, lossof life, or damage to property.

Installation and service must be performed by aqualified installer or service agency.

LonTalk®

MODULE

SmartWire�

CONNECTION

Figure 1. LonTalk® Control Module Installed on Prodigy® M2 Unit Controller

Page 2

Operation and Functional Description

LonWorks® Network ConnectionThe LonTalk® module has an FTT-10A Free TopologyTransceiver for network communication. The FTT-10Atransceiver network supports free topology wiring and willaccommodate bus, star, loop, or any combination of these

topologies. The module can be located at any point alongthe network wiring. This capability simplifies system installation and makes it easier to add nodes when required.

LonWorks® Network CableThe LonWorks TP/FT-10 network requires Echelon qualified twisted-pair communication cables such as Belden8471 or NEMA Level 4 cables. Other Echelon approvedequivalent cables may also be used depending on the application. The Belden 8471 or NEMA Level 4 cables are

rated for plenum use.

The network cable should be routed using best practices toavoid induced noise. Do not route alongside power lines, orin proximity to high voltage or high frequency devices, suchas ignition controls and variable frequency drives. The average temperature of the wire must not exceed 131ºF(55ºC).

Network Limits (Free Topology)The LonWorks TP/FT-10 free topology network is limited

to a maximum of 64 nodes per segment. The maximum total bus length and the maximum node-to-node lengthis1640 ft. (500 m) for Belden 8471 or NEMA Level 4. Maximum lengths are less for other smaller wire size cables.Only one termination circuit module is required at any location along the network. Refer to Echelon LonWorks FTT-

Transceiver User's Guide for additional details.

Free Topology Networks

Free topology segments require a termination circuit forproper performance. Only one termination circuit moduleis required at any location along the network (see figure 2).

Network Limits (Doubly-Terminated Topology)

The LonWorks TP/FT-10 Doubly-Terminated topologynetwork is limited to a maximum of 64 nodes per segment.

The maximum total bus length is 5000 ft. (1524 m) for Belden 8471 or NEMA Level 4. Maximum bus lengths are lessfor other smaller wire size cables. The maximum stublength is 9.8 ft. (3 m). In many cases, this bus network isconnected in a daisy chain manner where the bus is wireddirectly to each node, so stub length is zero.

Two termination circuit modules (37X75) are required foreach segment. One must be located at each end of the network (see figure 3).

LOOPTOPOLOGY

Termination

STARTOPOLOGY

MIXED TOPOLOGY(SINGLY TERMINATED)

Termination

Termination

Figure 2. Free Topology Networks

TerminationTermination

Figure 3. Doubly‐Terminated Topology

Page 3

Network Bus Termination

To install the network bus terminal module 37X75, connectthe brown and yellow wires to the network bus that requiressingle termination and connect the brown and orange wireto the network bus that requires double termination. Seefigure 7. The unused termination module wire must be covered with a wire nut to prevent potential grounding problems.

Network Integration

A network configuration tool such as LonMaker® is required to commission the LonWorks network. Press theservice button on the LonTalk module to generate a service

message that contains the Neuron ID.

Other commissioning methods may be used. The Neuronaddress is located on the LonTalk module. An external Interface File (XIF) is available for configuration prior to

installation.

Prodigy® Reset

The Prodigy unit controller may be reset using nviRequestwith enumeration RQ_RESET sent to NodeObject func

tion block.

Prodigy® Setup

In order to use zone temperature setpoints, the Prodigyunit controller must be configured for Zone Temperature

control mode. This may be done through the Prodigy display. Use the select button to enter the menu, and theup/down buttons to scroll through the options. Go to SET

TINGS > CONTROL > LONTALK > CONTROL MODEand select ZONE for the Zone Temperature control mode.This is the same as setting the Prodigy ECTO (ElectronicConfig To Order) parameter 6.01 to a value of 1.

In order to use nviSpaceIAQ, nviSpaceRH or nviSpaceTemp, the Prodigy unit controller must be configured. Go to

SETTINGS > CONTROL > LONTALK and step throughuntil NETWORK SENSORS and select YES for the appropriate sensor (CO2, RH or TEMP). This is the same assetting the Prodigy ECTO 5.27.

Data Update RateIf nviSpaceTemp, nviOutdoorTemp, nviSpaceRH or nviSpaceIAQ are used, the data needs to be updated within 5minutes to be valid.

LonMark Function ProfilesThe Prodigy LonTalk module contains two LonMark functional profile function blocks, Space Comfort Controller-Rooftop and Discharge Air Controller. It also contains a

Lennox specified functional block, a virtual function blockcontaining the network configuration variables and a nodeobject. See figure 4.

NVI DuplicationsnviOccSchedule1, (in sccRooftop), and nviOccSchedule,(in dischargeAirCont), are duplicate network variable inputs and only one should be used.

Also, nviFanSpeedCmd and nviSupFanCap have thesame functionality and only one should be used.

Both nviSetpoint and nviHCSetpoints change the effectivetemperature setpoints and only one of them should beused.

Page 4

sccRooftop

�nviApplicMod�nviAuxHeatEnable�nviComprEnable�nviEconEnable�nviEmergOverride�nviFanSpeedCmd�nviOAMinPos�nviOccManCmd�nviOccSchedule1�nviOccSensor�nviOutdoorTemp�nviSetpoint�nviSetptOffset�nviSpaceIAQ�nviSpaceRH�nviSpaceTemp

nvoCoolPrimary�nvoDischAirTem1�

nvoEffectOccup�nvoEffectSetpt�nvoFanSpeed�

nvoHeatPrimary�nvoHeatSecondary�

nvoLocalSpaceTmp�nvoOADamper�

nvoOutdoorTemp�nvoSetpoint�

nvoSpaceCO2�nvoSpaceRH�

nvoSpaceTemp�nvoUnitStatus�

nvoAirflow�

�nviBldgStaticSP�nviDACISP�nviDAHtSP�nviDuctStaticSP�nviExhFanCap�nviOccSchedule�nviPriCoolEnable�nviPriHeatEanble�nviSpaceDehumSP�nviSupFanCap

nvoBldStatPress�nvoDehumidifier�

nvoDischAirTemp�nvoDuctStatPress�nvoEconEnabled�

nvoEffDATempSP�nvoEffSpaceDHSP�nvoExhFanStatus�nvoLocalOATemp�

nvoRATemp�SupFanStatus�

nvoUnitStatus1�nvoOAFlow�

nvoBuildVersion�nvoCatalogNo�

nvoCurrentAlarms�nvoHCSetpoints�

nvoLocalSpaceCO2�nvoLocalSpaceRH�

nvoModelNo�nvoLocalSpaceTmp�nvoRecentEvent_1�nvoRecentEvent_2�nvoRecentEvent_3�nvoRecentEvent_4�nvoRecentEvent_5�nvoRecentEvent_6�nvoRecentEvent_7�nvoRecentEvent_8�nvoRecentEvent_9�

nvoRecentEvent_10�nvoRunTimeBlower�

nvoRunTimeComp_1�nvoRunTimeComp_2�nvoRunTimeComp_3�nvoRunTimeComp_4�nvoRunTempFrCool�nvoRunTimeHeat_1�nvoRunTimeHeat_2�nvoRunTimeHeat_3�nvoRunTimeHeat_4�nvoRunTimeHotGas�

nvoRunTimeMaint�nvoTimePowrOn�

nvoSerialNo�nvoBlowRPM�

nvoBlowTorque�

��nviHCSetpoints

�nviRequest nvoStat�

�nciBldgStaticSP�nciBypassTime�nciDACISP�nciDAHtSP�nciDuctStatSP�nciFanOperation�nciLocation�nciOAMinPOS�nciOATSP�nciSetpoints�nciSndHrtBt�nciSpaceRHSetpt�nciSupAFSP�nciMinOAFSP

dischargeAirContlennox

NodeObject

Virtual Functional Blocks

Figure 4. Device Function Blocks

Page 5

Table 1. Network Variables (sorted alphabetically)

SNVT Name

SNVT

Index SNVT Name

SNVT

Index SNVT Name

SNVT In

dex

nciBldgStaticSP 40 nviSetpoint 8 nvoOAFlow 101

nciBypassTime 104 nviSetptOffset 9 nvoOutdoorTemp 35

nciDAClSP 38 nviSpaceDehumSP 53 nvoRATemp 63

nciDAHtSP 39 nviSpaceIAQ 20 nvoRecentEvent_1 71

nciDuctStatSP 41 nviSpaceRH 19 nvoRecentEvent_2 72

nciFanOperation 66 nviSpaceTemp 7 nvoRecentEvent_3 73

nciLocation 1 nviSupFanCap 48 nvoRecentEvent_4 74

nciMinOAFlowSP 43 nvoAirflow 100 nvoRecentEvent_5 75

nciOAMinPos 5 nvoBldgStatPress 60 nvoRecentEvent_6 76

nciOATSP 42 nvoBlowRPM 102 nvoRecentEvent_7 77

nciSetpoints 4 nvoBlowTorque 103 nvoRecentEvent_8 78

nciSndHrtBt 0 nvoBuildVersion 86 nvoRecentEvent_9 79

nciSpaceRHSetpt 6 nvoCatalogNo 85 nvoRecentEvent10 80

nciSupAFSP 67 nvoCoolPrimary 32 nvoRunTimeBlower 99

nviApplicMode 22 nvoCurrentAlarms 70 nvoRunTimeComp_1 88

nviAuxHeatEnable 15 nvoDehumidifier 65 nvoRunTimeComp_2 89

nviBldgStaticSP 50 nvoDischAirTem1 29 nvoRunTimeComp_3 90

nviComprEnable 14 nvoDischAirTemp 54 nvoRunTimeComp_4 91

nviDAClSP 46 nvoDuctStatPress 57 nvoRunTimeFrCool 92

nviDAHtSP 47 nvoEconEnabled 61 nvoRunTimeHeat_1 95

nviDuctStaticSP 45 nvoEffDATempSP 56 nvoRunTimeHeat_2 96

nviEconEnable 16 nvoEffectOccup 26 nvoRunTimeHeat_3 97

nviEmergOverride 17 nvoEffectSetpt 25 nvoRunTimeHeat_4 98

nviExhFanCap 49 nvoEffSpaceDHSP 64 nvoRunTimeHotGas 93

nviFanSpeedCmd 13 nvoExhFanStatus 59 nvoRunTimeMaint 87

nviHCSetpoints 68 nvoFanSpeed 28 nvoRunTimePowrOn 94

nviOAMinPos 21 nvoHCSetpoints 69 nvoSerialNo 84

nviOccManCmd 11 nvoHeatPrimary 30 nvoSetpoint 27

nviOccSchedule 44 nvoHeatSecondary 31 nvoSpaceCO2 36

nviOccSchedule1 10 nvoLocalOATemp 62 nvoSpaceRH 34

nviOccSensor 12 nvoLocalSpaceCO2 81 nvoSpaceTemp 23

nviOutdoorTemp 18 nvoLocalSpaceRH 82 nvoStatus 3

nviPriCoolEnable 51 nvoLocalSpaceTmp 37 nvoSupFanStatus 58

nviPriHeatEnable 52 nvoModelNo 83 nvoUnitStatus 24

nviRequest 2 nvoOADamper 33 nvoUnitStatus1 55

Page 6

Table 2. Network Variable Definitions

Index

SNVTFunctional Block

SendHeartbeat

Application DescriptionName Type

0 nciSndHrtBt SNVT_time_sec Virtual Functional Block —

A value of 0 (zero), turns off the Send Heartbeatfunction. Values between .01 seconds and 10 aretreated as 10 seconds. (10 seconds is the minimumheartbeat supported rate.)

1 nciLocation SNVT_str_asc Virtual Functional Block — Location label string.

2 nviRequest SNVT_obj_request NodeObject —

Request an operation or a mode for a functionalblock within a device. Supported requests are:

RQ_NORMAL, RQ_UPDATE_STATUS, RQ_REPORT_MASK.

RQ_RESET and RQ_CLEAR_RESET are supported for the NodeObject function block to resetthe Prodigy controller.

3 nvoStatus SNVT_obj_status NodeObject No Reports the status for a functional block .

4 nciSetpoints SNVT_temp_setpt Virtual Functional Block —

Sets default zone temperature setpoints for the unit.Valid ranges are 40-95 F. The cooling setpointsmust be above the corresponding heating setpointby the unit's Autochangeover Deadband (3 F default). The Standby setpoints are not used by theApplication

5 nciOAMinPos SNVT_lev_percent Virtual Functional Block —

Sets the outdoor air damper minimum position.Used in modes where outdoor air ventilation is required, except when nviOAMinPos is valid.

6 nciSpaceRHSetpt SNVT_lev_percent Virtual Functional Block —

Defines a dehumidification setpoint for the controlled space. Not used when nviSpaceDehumidSPis valid.

7 nviSpaceTemp SNVT_temp_p sccRooftop —

Supported range: 36.25-to-100 F. Input must be updated within 5 minutes. Must beenabled with ECTO 5.27

8 nviSetpoint SNVT_temp_p sccRooftop —

Used to set the temperature setpoints for the occupied mode. (Note: The unoccupied setpoints arenot changed.). If a valid value is not present, theappropriate setpoint as configured in nciSetpointswill be used.The “symmetrical method” is used.The effective heat/cool setpoints for the occupiedmode are derived from nviSetpoint plus/minus halfthe occupied deadbands set in the Prodigy “Electronic Config To Order” parameter, 6.15 ( 3 degreesF default):effective_occupied_cool = nviSetpoint + 0.5(changeover_deadband)effective_occupied_heat = nviSetpoint - 0.5(changeover_deadband)

9 nviSetptOffset SNVT_temp_p sccRooftop —

Used to shift the effective occupied temperaturesetpoints by adding nviSetptOffset to the currentsetpoints.

10 nviOccSchedule1 SNVT_tod_event sccRooftop — Only current state occupancy mode is supported.

table continued on next page

Page 7

Index

Application DescriptionSend

HeartbeatFunctional Block

SNVTIndex



TypeName

11 nviOccManCmd SNVT_occupancy sccRooftop —Used to command the Space Comfort Controllerinto different occupancy mode

12 nviOccSensor SNVT_occupancy sccRooftop —Used to indicate the presence of occupants in thecontrolled space .

13 nviFanSpeedCmd SNVT_switch sccRooftop — Used to set the unit's blower speed.

14 nviComprEnable SNVT_switch sccRooftop — Used to disable compressor operation.

15 nviAuxHeatEnable SNVT_switch sccRooftop — Used to disable auxiliary heat operation.

16 nviEconEnable SNVT_switch sccRooftop — Used to enable and disable economizer operation.

17 nviEmergOverride SNVT_hvac_emerg sccRooftop —

Used to command the device into different emergency modes. Supported enumerations:

EMERG_NORMALEMERG_PRESSURIZEEMERG_DEPRESSURIZEEMERG_PURGEEMERG_SHUTDOWNEMERG_NUL

18 nviOutdoorTemp SNVT_temp_p sccRooftop —Supported range: -30.6 to 131.6 F. Input must be updated within 5 minutes.

19 nviSpaceRH SNVT_lev_percent sccRooftop —Input must be updated within 5 minutes. Must beenabled with ECTO 5.27

20 nviSpaceIAQ SNVT_ppm sccRooftop —

Supported range: 0 to 2,000 ppmInput must be updated within 5 minutes. Must beenabled with ECTO 5.27

21 nviOAMinPos SNVT_lev_percent sccRooftop —

Used to provide a dynamic minimum position setpoint for an outdoor air damper. When valid it willsupersede nciOAMinPos.

22 nviApplicMode SNVT_hvac_mode sccRooftop —

Used to set the unit's operating mode. Supportedvalues:

AUTO, HEAT ONLY, COOL ONLY, FANONLY, OFFMust be updated within 120 minutes, if used.

23 nvoSpaceTemp SNVT_temp_p sccRooftop Yes

This output is the effective space temperature valuethat the control is using. The support range is 36 to100 degrees Fahrenheit.

24 nvoUnitStatus SNVT_hvac_status sccRooftop Yes Reports the controller status.

25 nvoEffectSetpt SNVT_temp_p sccRooftop YesReports the current effective space temperaturesetpoint.

26 nvoEffectOccup SNVT_occupancy sccRooftop No Reports the effective occupancy state.

27 nvoSetpoint SNVT_temp_p sccRooftop NoReports the current setpoint without the applicationof nviSetptOffset.

28 nvoFanSpeed SNVT_switch sccRooftop Yes Reports the current unit blower speed

29 nvoDischAirTemp SNVT_temp_p sccRooftop NoReports the discharge temperature value. Supported range, -8 to +163 degrees Fahrenheit.


Page 8

Index



SNVTIndex



TypeName

30 nvoHeatPrimary SNVT_lev_percent sccRooftop Yes Reports the current primary heat output value.

31 nvoHeatSecondary SNVT_lev_percent sccRooftop YesReports the current secondary heat output value,(heat pumps only).

32 nvoCoolPrimary SNVT_lev_percent sccRooftop Yes Reports the current cooling output value.

33 nvoOADamper SNVT_lev_percent sccRooftop Yes Reports the current outdoor air damper position.

34 nvoSpaceRH SNVT_lev_percent sccRooftop Yes Reports the effective space relative humidity value.

35 nvoOutdoorTemp SNVT_temp_p sccRooftop YesReports the effective outdoor temperature value.Supported range, -30 to +130 degrees Fahrenheit

36 nvoSpaceCO2 SNVT_ppm sccRooftop YesReports the effective space carbon dioxide value.Supported range, 0 to 2,000 ppm.

37 nvoLocalSpaceTmp SNVT_temp_p sccRooftop Yes

Reports the space temperature measured by thelocally wire sensor. Supported range, 36 to 100 degrees Fahrenheit.

38 nciDAClSP SNVT_temp_p Virtual Functional Block —Sets the default discharge air cooling temperaturesetpoint. Supported range: 40 to 80 F.

39 nciDAHtSP SNVT_temp_p Virtual Functional Block —Sets the default discharge air heating temperaturesetpoint. Supported range: 80 to 140 F.

40 nciDuctStatSP SNVT_press_p Virtual Functional Block —Sets the default duct static pressure setpoint. Supported range: 0 to 1245 Pa.

41 nciOATSP SNVT_temp_p Virtual Functional Block —

Sets the outdoor air temperature setpoint to enablefree-cooling for units with economizers. Supported range: 40 to 70 F.

42 nciBldgStaticSP SNVT_press_p Virtual Functional Block —

Sets the default building static pressure setpoint forexhaust control. Supported range -124.5 to 124.5 Pa.

43 nciMinOAFlowSP SNVT_flow Virtual Functional Block —

Set the default outdoor airflow for EP enabledRTUs.Supported range – 0 to 150 cfm/tonMultiply the CFM/ton value with tonnage of the unitto derive the value in CFM.

44 nviOccSchedule SNVT_tod_event dischargeAirCont — Only current state is supported.

45 nviDuctStaticSP SNVT_press_p dischargeAirCont —Sets the duct static pressure setpoint. Supported range: 0 to 1245 Pa.

46 nviDAClSP SNVT_temp_p dischargeAirCont —Sets the discharge air cooling temperature setpoint. Supported range: 40 to 80 F.

47 nviDAHtSP SNVT_temp_p dischargeAirCont —Sets the discharge air heating temperature setpoint.Supported range: 80 to 140 F.

48 nviSupFanCap SNVT_lev_percent dischargeAirCont — Sets the unit's blower speed.

49 nviExhFanCap SNVT_lev_percent dischargeAirCont — Sets the unit's exhaust fan speed.

50 nviBldgStaticSP SNVT_press_p dischargeAirCont —Sets the building static pressure setpoint for ex-haust control. Supported range −124.5 to 124.5 Pa.


Page 9

Index



SNVTIndex



TypeName

51 nviPriCoolEnable SNVT_switch dischargeAirCont — Used to disable compressor operation.

52 nviPriHeatEnable SNVT_switch dischargeAirCont — Used to disable primary heating operation.

53 nviSpaceDehumSP SNVT_lev_percent dischargeAirCont — Sets the dehumidification RH setpoint.

54 nvoDischAirTemp SNVT_temp_p sccRooftop NoReports the discharge air temperature. Supported range: -8 to 131 degrees Fahrenheit.

55 nvoUnitStatus1 SNVT_hvac_status dischargeAirCont YesReports the controller status. Same as nvoUnitStatus in sccRooftop function block.

56 nvoEffDATempSP SNVT_temp_p dischargeAirCont YesReports the effective discharge air temperature set-point.

57 nvoDuctStatPress SNVT_press_p dischargeAirCont YesReports the duct static pressure. Supported range: 0 to 1245 Pa.

58 nvoSupFanStatus SNVT_switch dischargeAirCont Yes Reports unit blower speed.

59 nvoExhFanStatus SNVT_switch dischargeAirCont Yes Reports exhaust fan speed.

60 nvoEconEnabled SNVT_switch dischargeAirCont Yes Reports free−cooling status of economizer.

61 nvoBldgStatPress SNVT_press_p dischargeAirCont YesReports the building static pressure. Supported range: -124.5 to +124.5 Pa.

62 nvoLocalOATemp SNVT_temp_p dischargeAirCont YesReports locally measured outdoor temperature.Supported range: -30 to +130 degrees Fahrenheit.

63 nvoRATemp SNVT_temp_p dischargeAirCont YesReports effective return air temperature. Supportedrange: -8 to +163 degrees Fahrenheit.

64 nvoEffSpaceDHSP SNVT_press_p dischargeAirCont YesReports effective relative humidity setpoint for de-humidification.

65 nvoDehumidifier SNVT_switch dischargeAirCont Yes Reports status of dehumidification operation.

66 nciFanOperation SCPTfanOperation Virtual Functional Block —Sets the operation mode for the unit blower duringoccupied state.

67 nciSupAFSP UNVT_SupAF_Stps Virtual Functional Block —

Sets the default Airflow settings for a SmartAirflow™enabled RTU in lit/sec units. For valid ranges pleaserefer to the Appendix A.

68 nviHCSetpoints SNVT_temp_setpt lennox —

Valid ranges are 40-to-95 F (COOLING). The cooling setpoints must be above the correspondingheating setpoint by the unit's AutochangeoverDeadband (ECTO 6.15, 3 F default). The Standbysetpoints are not used by the Application

69 nvoHCSetpoints SNVT_temp_setpt lennox No

Reports zone temperature setpoints. Standby set-points are not used and are returned with the unoc-cupied values.

70 nvoCurrentAlarms UNVT_currentAlarms lennox Yes Reports currently active alarms codes.

71 nvoRecentEvent_1 UNVT_event lennox YesReports most recent alarm code with time of occur-rence.


Page 10

Index



SNVTIndex



TypeName

72 nvoRecentEvent_2 UNVT_event lennox NoReports second most recent alarm with time of oc-currence.

73 nvoRecentEvent_3 UNVT_event lennox No Reports alarm with time of occurrence.







80 nvoRecentEvent10 UNVT_event lennox No Reports alarm with time of occurrence.

81 nvoLocalSpaceCO2 SNVT_ppm lennox NoReports locally measured space carbon dioxidelevel. Supported range: 0 to 2,000 ppm.

82 nvoLocalSpaceRH SNVT_lev_percent lennox NoReports locally measured space relative humiditylevel.

83 nvoModelNo SNVT_str_asc lennox No Reports unit model number.

84 nvoSerialNo SNVT_str_asc lennox No Reports unit serial number.

85 nvoCatalogNo SNVT_str_asc lennox No Report unit catalog number.

86 nvoBuildVersion SNVT_str_asc lennox No Reports firmware version string.

87 nvoRunTimeMaint UNVT_maint_runtimes lennox NoReports air filter, blower belt and UV lamp run-times.

88 nvoRunTimeComp_1 UNVT_minutes_cycles lennox No Reports run-time and cycle count for compressor 1.




92 nvoRunTimeFrCool UNVT_minutes_cycles lennox NoReports run-time and cycle count for free coolingoperation.

93 nvoRunTimeHotGas UNVT_minutes_cycles lennox NoReports run-time and cycle count for hot gas bypass dehumidification.

94 nvoRunTimePowrOn UNVT_minutes_cycles lennox No Reports run-time and cycle count for unit power on.

95 nvoRunTimeHeat_1 UNVT_minutes_cycles lennox No Reports run-time and cycle count for heat stage 1.




99 nvoRunTimeBlower UNVT_minutes_cycles lennox No Reports run-time and cycle count for blower.

100 nvoAirflow SNVT_flow ssRooftop YesReports the amount of current Supply AirflowSupported range: 0 480 cfm/ton

101 nvoOAFlow SNVT_flow dischargeAirCont YesReports the amount of Outdoor Airflow.Supported range: 0 480 cfm/ton

102 nvoBlowRPM SNVT_rpm lennox YesReports the blower motor speed. Supported range: 0 – 1500 rpm

103 nvoBlowTorque SNVTlev_percent lennox YesReports the PWM of an ECM blower motor. Supported range: 0 – 100 %

104 nciBypassTime SNVT_time_min Virtual Function Block —

This configuration property defines the maximumamount of time that the controller can be in the Bypass (occupancy) mode following a single Bypassrequest from either a local (hardwired) bypassswitch or nviOccManCmd. Additional Bypass requests can restart the timer.

Page 11

Table 3. Variable Type DefinitionsSNVT Type Definition

SCPTfanOperation fan_operation_tEnumeration, 1 byteValue Identifier Notes-1 (0xFF) HVF_NUL Invalid Value1 HVF_CYCLE Fan cycles with heating andcooling2 HVF_CON_CYCLE Continuous in occupied, cycles in occupied standby

SNVT_hvac_emerg emerg_tEnumeration, 1 byte

SNVT_hvac_mode hvac_tEnumeration, 1 byte

SNVT_hvac_status typedef struct { hvac_t mode; signed long heat_output_primary; signed long heat_output_secondary; signed long cool_output; signed long econ_output; signed long fan_output; unsigned short in_alarm;} SNVT_hvac_status;

SNVT_lev_percent Signed Long, 2 bytesValid Type Range: -163.840 .. 163.830Type Resolution: 0.005Invalid Value: 32,767 (0x7FFF)

SNVT_occupancy occup_t Enumeration, 1 byte

SNVT_ppm Unsigned Long, 2 bytesValid Range: 0 .. 65,535 Parts per Million (ppm)

SNVT_press_p Signed Long, 2 bytesValid Type -32768 .. 32,766 Pascals Invalid Value 32,767 (0x7FFF)

SNVT_str_asc ASCII character string with NUL terminator30 characters max, 31 bytes

SNVT_switch typedef struct { unsigned value; signed state;} SNVT_switch;value: percentage of full scale, resolution0.5%state: can either be -1 (NULL), 0 (OFF), or 1(ON)

SNVT_temp_p Temperature Signed Long 2 bytesValid Range: -273.17 .. 327.66 Resolution: 0.01 Degrees Celsius Invalid Value: 32,767 (0x7FFF)

SNVT_temp_setpt typedef struct { signed long occupied_cool; signed long standby_cool; signed long unoccupied_cool; signed long occupied_heat; signed long standby_heat; signed long unoccupied_heat;} SNVT_temp_setpt;

SNVT_flow Flow VolumeUnsigned Long, 2 bytesValid Range: 0 .. 65,534 lit/secResolution: 1 lit/secConvert to CFM 1 cfm = 0.4719474432 lit/sec

SNVT_rpm Revolutions per minuteUnsigned Long, 2 bytesValid Range: 0 .. 65,534 RPMResolution: 1 RPM

SNVT Type Definition

SNVT_time_min Elapsed Time Signed Long, 2 bytesValid Range: 0 .. 65,535 MinutesResolution: 1 Minute

SNVT_time_sec Elapsed Time Signed Long, 2 bytesValid Range: 0 .. 6,5535 SecondsResolution: .01 Seconds

SNVT_time_stamp typedef struct { signed long year; unsigned short month; unsigned short day; unsigned short hour; unsigned short minute; unsigned short second;} SNVT_time_stamp;

SNVT_tod_event typedef struct { occup_t current_state; occup_t next_state; unsigned long time_to_next_state;}SNVT_tod_event

UNVT_currentAlarms

typedef struct { unsigned short AlarmCount; event_code_t AlarmCode1; event_code_t AlarmCode2; event_code_t AlarmCode3; event_code_t AlarmCode4; event_code_t AlarmCode5; event_code_t AlarmCode6; event_code_t AlarmCode7;}UNVT_currentAlarms;

UNVT_event typedef struct { event_code_t Event; struct EventStatus { unsigned reserved :1; unsigned currentlyActiveAlarm :1; unsigned UnitOffOnAlarm :1; unsigned reserved5bits :5; }; SNVT_time_stamp EventTime;};UNVT_event

UNVT_maint_runtimes

typedef struct { signed quad filter_time_minutes; signed quad belt_time_minutes; signed quad UV_lamp_time_minutes;}UNVT_maint_runtimes;

UNVT_minutes_cycles

typedef struct { signed quad minutes; signed quad cycles;}UNVT_minutes_cycles;

UNVT_SupAF_Stps typedef struct { unsigned long HeatSP; unsigned long HiCoolSP; unsigned long MHCoolSP; unsigned long MLCoolSP; unsigned long LoCoolSP; unsigned long VentSP; unsigned long SmokeSP;}UNVT_SupAF_StpsAll the above parameters follow the sameunit convention as SNVT_flow.

Page 12

Network Configuration Parameter ImplementationTable 4 shows which Prodigy ECTO (Electronic Config To Order) parameters are updated with Network Configuration Parameter (nci) parameter updates. Refer to Prodigy Application Guide for ECTO details.

Table 4. Network Configuration Parameter to Electronic-Config-To-Order Parameter Relationships

nci ECTO

nciBldgStaticSP 8.20

nciBypassTime 6.06

nciDAClSP 7.16

nciDAHtSP 7.10

nciDuctStatSP 0.16

nci ECTO

nciFanOperation 6.17

nciMinOAFlowSp 10.17

nciSupAFSP HeatSP – 10.5 HiCoolSP – 10.2MHCoolSP – 10.4MLCoolSP – 10.3LoCoolSP – 10.1 VentSP 10.6SmokeSP – 10.7

nciOAMinPos 5.24

nciOATSP 6.26

nciSetpoints 6.02 – 6.05

nciSpaceRHSetpt 4.25

Page 13

Appendix AThe maximum and minimum values of Supply Airflow Targets in CFM units are as below in CFM as well as in lit/sec units.

UNIT SIZE 36 (3 ton) 48 (4 ton) 60 (5 ton)

Units CFM lit/sec CFM lit/sec CFM lit/sec

Maximum High Speed Target & Heat Mode Target (480 CFM/ton)

1440 679 1920 906 2400 1132

Minimum High Speed Target(280 CFM/ton)

840 397 1120 529 1400 661

Minimum Low Speed Target(220 CFM/ton)

660 312 880 416 1100 520

Minimum Ventilation Target(150 CFM/ton)

450 213 600 284 750 354

Minimum Heat Mode Target Standard GasHeat (S,W)

970 458 970 458 970 458

Minimum Heat Mode Target Medium GasHeat (M, Q, U, Y)

1120 529 1120 529 1120 529

Minimum Heat Mode Target High Gas Heat Minimum (H, T, X, Z)

1310 619 1310 619 1310 619

Minimum Heat Mode Target Electric Heat

1080 510 1280 605 1600 756

Maximum Outdoor Airflow(150 cfm/ton)

450 212 600 283 750 353

Note:

1. Maximum Ventilation Target should be less than High Speed Target or Heat Mode Target

2. Maximum Low Speed Target should be less than High Speed Target

3. CFM units to liters/sec units conversion factor: 1 CFM = 0.4719474432 lit/sec

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UR

E

Wh

en

warr

anty

part

s a

re r

equired:

1 -

B

e p

rep

are

d t

o f

urn

ish

th

e f

ollo

win

g in

form

atio

n:

a -

Com

ple

te m

odel and s

erial num

ber.

b -

Pro

of

of

req

uir

ed p

eri

od

ic m

ain

ten

an

ce

, in

sta

lla

tio

n d

ate

an

dlo

ca

tio

n.

c -

A

n a

ccu

rate

de

scrip

tio

n o

f th

e p

rob

lem

.

2 -

C

all

a local Len

nox d

eale

r or

contr

acto

r.

3 -

If t

he insta

lling d

eale

r is

unable

to p

rovid

e w

arr

anty

part

s,

check t

he

yello

w p

ages for

anoth

er

Lennox d

eale

r in

the a

rea. R

efe

r to

the L

en

nox I

ndustr

ies I

nc.

website a

t w

ww

.lennox.c

om

to locate

a d

eale

r in

yo

ur

are

a,

or

co

nta

ct:

Lennox I

ndu

str

ies I

nc.

P.O

. B

ox 7

99

90

0D

alla

s,

TX

7

53

79

‐99

00

1-8

00-9

LE

NN

OX

(1-8

00-9

53-6

669)

WA

RR

AN

TY

LIM

ITA

TIO

NS

1 -

Lennox w

ill n

ot pay labor

involv

ed in d

iagnostic c

alls

, or

in r

em

ovin

g,

rep

airin

g, serv

icin

g, or

repla

cin

g p

art

s. S

uch c

osts

may b

e c

overe

d b

ya

separa

te w

arr

anty

pro

vid

ed b

y t

he insta

lling c

ontr

acto

r.

2 -

Th

is w

arr

anty

is v

oid

if

the c

overe

d e

quip

ment

is r

em

oved f

rom

the

orig

ina

l in

sta

llatio

n s

ite

.

3 -

T

his

warr

anty

does n

ot

cover

dam

age o

r defe

ct

resultin

g f

rom

:

a -

Flo

od, w

ind, fire

, lig

htn

ing, m

old

, or

insta

llation a

nd o

pera

tion in a

corr

osiv

e a

tmosphere

, or

oth

erw

ise in c

onta

ct w

ith c

orr

osiv

e m

a

terials

(chlo

rine, fluorine, salt, re

cycle

d w

aste

wate

r, u

rine, fe

rtili

z

ers

, o

r o

the

r d

am

ag

ing

su

bsta

nce

s o

r ch

em

ica

ls).

b -

Accid

ent, n

egle

ct, o

r unre

asonable

use o

r opera

tion o

f th

e e

quip

m

en

t, inclu

din

g o

pera

tion o

f ele

ctr

ical equip

ment at voltages o

ther

than the r

ange s

pecifie

d o

n the u

nit n

am

epla

te (

inclu

des d

am

ages

ca

use

d b

y b

row

nouts

), o

r re

vers

e r

ota

tion o

f com

pre

ssors

or

moto

rs

due to im

pro

per

phasin

g.

c -

M

odific

ation,

change o

r altera

tion o

f th

e e

quip

ment, e

xcept as d

ire

cte

d in

writin

g b

y L

en

no

x.

d -

Opera

tion

of

pa

cka

ge

d g

as/e

lectr

ic u

nits (

eq

uip

pe

d w

ith

alu

mi

niz

ed h

eat

exch

an

ge

r) w

ith

mix

ed

air t

em

pe

ratu

res o

f le

ss t

ha

n45°F

(7°C

).

e -

Use o

f conta

min

ate

d o

r a

lte

rna

te r

efr

ige

ran

t.

The

insta

llatio

n o

f re

pla

cem

ent part

s u

nder

term

s o

f th

is w

arr

anty

does n

ot

exte

nd

th

e o

rig

ina

l w

arr

an

ty p

erio

d.

Len

no

x m

akes n

o e

xp

ress w

arr

an

ties o

ther

than

th

e w

arr

an

ty s

peci

fied

ab

ove. A

ll im

plied

warr

an

ties, in

clu

din

g t

he im

plied

warr

an

ties

of

merc

han

tab

ilit

y a

nd

fit

ness f

or

a p

art

icu

lar

pu

rpo

se, are

exclu

ded

to t

he e

xte

nt

leg

ally p

erm

issib

le. S

ho

uld

su

ch

exclu

sio

n o

r lim

itati

on

of

the w

arr

an

ty b

e u

nen

forc

eab

le, su

ch

im

plied

warr

an

ties a

re in

an

yeven

t li

mit

ed

to

a p

eri

od

of

on

e (

1)

ye

ar.

Lia

bilit

y f

or

inc

ide

nta

l a

nd

co

nseq

uen

tial

dam

ag

es

is

ex

clu

de

d.

So

me

sta

tes

do

no

t a

llo

w l

im

itati

on

s o

n t

he d

ura

tio

n o

f an

im

plied

warr

an

ty o

r th

e e

xclu

sio

n o

rli

mit

ati

on

of

incid

en

tal o

r co

nseq

uen

tial d

am

ag

es, so

th

e lim

itati

on

so

r exclu

sio

ns m

ay n

ot

ap

ply

to

yo

u.

Le

nn

ox

wil

l n

ot p

ay e

lec

tric

ity o

r fu

el co

sts

, o

r in

cre

as

es in

ele

ctr

ic

ity

or

fue

l co

sts

, fo

r an

y r

ea

so

n w

ha

tso

ev

er,

in

clu

din

g a

dd

itio

na

l o

ru

nu

su

al u

se o

f su

pp

lem

en

tal ele

ctr

ic h

ea

t. T

his

wa

rra

nty

do

es n

ot

co

ve

r lo

dg

ing

ex

pe

ns

es

.

Len

no

x s

hall n

ot

be lia

ble

fo

r an

y d

efa

ult

or

dela

y in

perf

orm

an

ce u

n

der

this

warr

an

ty c

au

se

d b

y a

ny

co

nti

ng

en

cy

be

yo

nd

its

co

ntr

ol.

Th

is w

arr

anty

giv

es y

ou s

pecific

legal rights

, and y

ou m

ay a

lso h

ave o

ther

rig

hts

wh

ich

va

ry f

rom

sta

te t

o s

tate

.

NO

TE

TO

CU

ST

OM

ER

Ple

as

e c

om

ple

te in

form

ati

on

belo

w a

nd

reta

in t

his

warr

an

ty f

or

yo

ur

rec

ord

s a

nd

fu

ture

re

fere

nc

e.

Unit M

odel N

um

ber:

Serial N

um

ber:

Da

te:

Insta

lling C

ontr

acto

r:P

ho

ne

:

FO

RM

W-0

22-L

3 -

- 11/1

/2013

Supers

edes 1

/1/2

012

©2013 L

ennox Industr

ies Inc.

Litho U

.S.A

.

P.O

. B

ox 7

99900, D

alla

s, T

X 7

5379-9

900

��

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