PAC-AH001-1 - MyLinkDrive · 2018. 2. 28. · PAC-AH001-1 SERVICE MANUAL. Table of Contents 1. ... • After completing the service work, check for a refrigerant leak. – If leaked

AHU Controller

PAC-AH001-1

SERVICE MANUAL

Table of Contents1. Safety Precautions .................................................................................................................. 5

Read before installation and performing electrical work ......................................................... 5Symbol explanations ........................................................................................................... 5

Symbols used in the text ............................................................................................. 5Precautions for handling units for use with R410A ................................................................. 7

2. Features ................................................................................................................................. 83. Part Names and Functions ...................................................................................................... 9

3.1. System Assembly ......................................................................................................... 93.2. Installation Detail for Single LEV Assembly .................................................................... 93.3. Installation Detail for 2 LEV Assemblies in Parallel ........................................................ 103.4. Remote Controller ....................................................................................................... 11

3.4.1. City Multi® Remote Controller, PAC-YT53CRAU ................................................. 113.4.2. 3rd Party Controller .......................................................................................... 13

4. Specifications ........................................................................................................................ 144.1. AHU Controller Specifications ...................................................................................... 144.2. LEV Assembly Specifications ....................................................................................... 14

5. Outlines and Dimensions ........................................................................................................ 155.1. AHU Controller ............................................................................................................ 155.2. Single Valve LEV Assembly ......................................................................................... 16

PAC-LEV24AC-1 ....................................................................................................... 16PAC-LEV48AC-1, PAC-LEV60AC-1 ............................................................................ 16

5.3. Double Valve LEV Assembly ........................................................................................ 176. Wiring Diagram ...................................................................................................................... 187. Microprocessor Control .......................................................................................................... 19

7.1. Cool Operation ............................................................................................................ 197.1.1. How to operate ................................................................................................. 197.1.2. Thermo-regulating function ............................................................................... 217.1.3. Fan .................................................................................................................. 217.1.4. Float switch control ........................................................................................... 22

7.2. Dry Operation ............................................................................................................. 227.2.1. How to operate ................................................................................................. 227.2.2. Thermo-regulating function ............................................................................... 227.2.3. Fan .................................................................................................................. 23

7.3. Fan Operation ............................................................................................................. 237.3.1. How to operate ................................................................................................. 247.3.2. Fan .................................................................................................................. 247.3.3. Float switch control ........................................................................................... 24

7.4. Heat Operation ........................................................................................................... 257.4.1. How to operate ................................................................................................. 257.4.2. Thermo-regulating function ............................................................................... 267.4.3. Fan .................................................................................................................. 277.4.4. Float switch control ........................................................................................... 28

7.5. Auto Operation [Automatic cool / heat change over operation] ........................................ 287.5.1. How to operate ................................................................................................. 287.5.2. Initial operation mode ....................................................................................... 297.5.3. Mode change ................................................................................................... 297.5.4. COOL mode ..................................................................................................... 297.5.5. HEAT mode ..................................................................................................... 29

7.6. Heater Control ............................................................................................................ 30

3 © 2018 Mitsubishi Electric US, Inc.

7.6.1. Control specifications and DIP S/W setting ......................................................... 307.7. Humidifier Control ....................................................................................................... 32

Sequence of operation: .............................................................................................. 32Humidistat: ................................................................................................................ 32

8. Troubleshooting ..................................................................................................................... 348.1. Check Methods ........................................................................................................... 348.2. Address switch setting ................................................................................................. 388.3. Voltage test points ....................................................................................................... 408.4. Dipswitch setting ......................................................................................................... 41

8.4.1. Discharge Air Control (Factory Setting) .............................................................. 418.4.2. Return Air Control (Factory Setting) ................................................................... 428.4.3. SW2 – Capacity Code Setting ........................................................................... 448.4.4. SW5 – Power voltage Setting (Factory Setting) .................................................. 458.4.5. SWA – Controller Type Setting (Factory Setting) ................................................. 458.4.6. SWC - Function Setting (Factory Setting) ........................................................... 458.4.7. SW11, SW12, SW14 - Address Setting (Factory Setting) ..................................... 46

PAC-AH001-1

Specifications are subject to change without notice. 4

1. Safety Precautions

Read before installation and performing electrical work• Thoroughly read the following safety precautions prior to installation.• Observe these safety precautions for your safety.• This equipment may have adverse effects on the equipment on the same power supply system.• Contact the local power authority before connecting to the system.

Symbol explanations

WARNINGThis symbol indicates that failure to follow the instructions exactly as stated poses the riskof serious injury or death.

CAUTIONThis symbol indicates that failure to follow the instructions exactly as stated poses the riskof serious injury or damage to the unit.

Symbols used in the text

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This symbol is displayed on themain unit label.)<Color: yellow>: Beware of electric shock (This symbol is displayed on the main unit label.) <Color: yellow>

WARNINGCarefully read the labels affixed to the main unit.


ii

HWE13010 GB

Safety PrecautionsRead before installation and performing electrical work

Symbol explanations

�Thoroughly read the following safety precautions prior to installation.�Observe these safety precautions for your safety.�This equipment may have adverse effects on the equipment on the same power supply system.�Contact the local power authority before connecting to the system.

WARNINGThis symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or death.

CAUTIONThis symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or dam-age to the unit.

Indicates an action that must be avoided.

Indicates important instructions.

Indicates a parts that requires grounding.

Indicates that caution must be taken with rotating parts. (This symbol is on the main unit label.) <Color: Yellow>

Indicates that the parts that are marked with this symbol pose a risk of electric shock. (This symbol is on the main unit label.) <Color: Yellow>


WARNING

Do not use refrigerant other than the type indicated in the manuals provided with the unit and on the nameplate.

Doing so may cause the unit or pipes to burst, or result in explosion or fire during use, during repair, or at the time of disposal of the unit.It may also be in violation of applicable laws.MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant.

Ask your dealer or a qualified technician to install the unit.

Improper installation by the user may result in water leak-age, electric shock, or fire.

Properly install the unit on a surface that can withstand its weight.

Unit installed on an unstable surface may fall and cause in-jury.

Only use specified cables. Securely connect each cable so that the terminals do not carry the weight of the cable.

Improperly connected cables may produce heat and start a fire.

Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppling over.

Improper installation may cause the unit to topple over and cause injury or damage to the unit.

Only use accessories (i.e., air cleaners, humidifiers, electric heaters) recommended by Mitsubishi Electric.

Do not make any modifications or alterations to the unit. Consult your dealer for repair.

Improper repair may result in water leakage, electric shock, or fire.

Do not touch the heat exchanger fins with bare hands.

The fins are sharp and pose a risk of cuts.

In the event of a refrigerant leak, thoroughly ventilate the room.

If gaseous refrigerant leaks out and comes in contact with an open flame, toxic gases will be generated.

Properly install the unit according to the instructions in the Installation Manual.

Improper installation may result in water leakage, electric shock, or fire.

• Do not use refrigerant other than the type indicated in the manuals provided with the unit and on the nameplate.– Doing so may cause the unit or pipes to burst, or result in explosion or fire during use, during repair, or at the time of disposal of the unit.

It may also be in violation of applicable laws. MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant.

• Ask your dealer or a qualified technician to install the unit.– Improper installation by the user may result in water leakage, electric shock, or fire.

• Properly install the unit on a surface that can withstand its weight.– Unit installed on an unstable surface may fall and cause injury.

• Only use specified cables. Securely connect each cable so that the terminals do not carry the weight of the cable.– Improperly connected cables may produce heat and start a fire.

• Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppling over.– Improper installation may cause the unit to topple over and cause injury or damage to the unit.

• Only use accessories (i.e., air cleaners, humidifiers, electric heaters) recommended by Mitsubishi Electric.

• Do not touch the heat exchanger fins with bare hands.– The fins are sharp and pose a risk of cuts.

• In the event of a refrigerant leak, thoroughly ventilate the room.– If gaseous refrigerant leaks out and comes in contact with an open flame, toxic gases will be generated.

• Properly install the unit according to the instructions in the Installation Manual.– Improper installation may result in water leakage, electric shock, or fire.

• Have all electrical work performed by an authorized electrician according to the local regulations and the instructions in this manual. Use a dedicated circuit.– Insufficient power supply capacity or improper installation of the unit may result in malfunctions of the unit, electric shock, or fire.

• Keep electrical parts away from water.– Wet electrical parts pose a risk of electric shock, smoke, or fire.

• Securely attach the control box cover.– If the cover is not installed properly, dust or water may infiltrate and pose a risk of electric shock, smoke, or fire.

• Only use the type of refrigerant that is indicated on the unit when installing or relocating the unit.– Infiltration of any other types of refrigerant or air into the unit may adversely affect the refrigerant cycle and may cause the pipes to burst or explode.

• When installing the unit in a small space, take appropriate precautions to prevent leaked refrigerant from reaching the limiting concentration.– Leaked refrigerant gas will displace oxygen and may cause oxygen starvation. Consult your dealer before installing the unit.

• Consult your dealer or a qualified technician when moving or reinstalling the unit.– Improper installation may result in water leakage, electric shock, or fire.

• After completing the service work, check for a refrigerant leak.– If leaked refrigerant is exposed to a heat source, such as a fan heater, stove, or electric grill, toxic gases will be generated.

• Do not try to defeat the safety features of the unit.– Forced operation of the pressure switch or the temperature switch by defeating the safety features for these devices, or the use of accessories other than the ones that

are recommended by Mitsubishi Electric may result in smoke, fire, or explosion.

• Consult your dealer for proper disposal method.

• Do not use a leak detection additive.

PAC-AH001-1


Precautions for handling units for use with R410A

ii

HWE13010 GB

Safety PrecautionsRead before installation and performing electrical work

Symbol explanations

�Thoroughly read the following safety precautions prior to installation.�Observe these safety precautions for your safety.�This equipment may have adverse effects on the equipment on the same power supply system.�Contact the local power authority before connecting to the system.

WARNINGThis symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or death.

CAUTIONThis symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or dam-age to the unit.

Indicates an action that must be avoided.

Indicates important instructions.

Indicates a parts that requires grounding.

Indicates that caution must be taken with rotating parts. (This symbol is on the main unit label.) <Color: Yellow>

Indicates that the parts that are marked with this symbol pose a risk of electric shock. (This symbol is on the main unit label.) <Color: Yellow>


WARNING

Do not use refrigerant other than the type indicated in the manuals provided with the unit and on the nameplate.

Doing so may cause the unit or pipes to burst, or result in explosion or fire during use, during repair, or at the time of disposal of the unit.It may also be in violation of applicable laws.MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant.

Ask your dealer or a qualified technician to install the unit.

Improper installation by the user may result in water leak-age, electric shock, or fire.

Properly install the unit on a surface that can withstand its weight.

Unit installed on an unstable surface may fall and cause in-jury.

Only use specified cables. Securely connect each cable so that the terminals do not carry the weight of the cable.

Improperly connected cables may produce heat and start a fire.

Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppling over.

Improper installation may cause the unit to topple over and cause injury or damage to the unit.

Only use accessories (i.e., air cleaners, humidifiers, electric heaters) recommended by Mitsubishi Electric.

Do not make any modifications or alterations to the unit. Consult your dealer for repair.

Improper repair may result in water leakage, electric shock, or fire.

Do not touch the heat exchanger fins with bare hands.

The fins are sharp and pose a risk of cuts.

In the event of a refrigerant leak, thoroughly ventilate the room.

If gaseous refrigerant leaks out and comes in contact with an open flame, toxic gases will be generated.

Properly install the unit according to the instructions in the Installation Manual.

Improper installation may result in water leakage, electric shock, or fire.

• Do not use the existing refrigerant piping.– A large amount of chlorine that may be contained in the residual refrigerant and refrigerator oil in the existing piping may cause the refrigerator oil in the new unit to

deteriorate.

• Use refrigerant piping materials made of phosphorus deoxidized copper. Keep the inner and outer surfaces of the pipes clean and free of such contaminants as sulfur,oxides, dust, dirt, shaving particles, oil, and moisture.– Contaminants in the refrigerant piping may cause the refrigerator oil to deteriorate.

• Store the piping materials indoors, and keep both ends of the pipes sealed until immediately before brazing. (Keep elbows and other joints wrapped in plastic.)– Infiltration of dust, dirt, or water into the refrigerant system may cause the refrigerator oil to deteriorate or cause the compressor to malfunction.

• Use a small amount of ester oil, ether oil, or alkyl benzene to coat flares and flanges.– Infiltration of a large amount of mineral oil may cause the refrigerator oil to deteriorate.

• Charge the system with refrigerant in the liquid phase.– If gaseous refrigerant is drawn out of the cylinder first, the composition of the remaining refrigerant in the cylinder will change and become unsuitable for use.

• Only use R410A.– The use of other types of refrigerant that contain chloride may cause the refrigerator oil to deteriorate.

• Use a vacuum pump with a check valve.– If a vacuum pump that is not equipped with a check valve is used, the vacuum pump oil may flow into the refrigerant cycle and cause the refrigerator oil to deteriorate.

• Prepare tools for exclusive use with R 410A. Do not use the following tools if they have been used with the conventional refrigerant: gauge manifold, charging hose, gasleak detector, check valve, refrigerant charge base, vacuum gauge, and refrigerant recovery equipment.– If the refrigerant or the refrigerator oil that may be left on these tools are mixed in with R410A, it may cause the refrigerator oil in the new system to deteriorate.

Infiltration of water may cause the refrigerator oil to deteriorate. Leak detectors for conventional refrigerants will not detect an R410A leak because R410A is free of chlorine.

• Do not use a charging cylinder.– If a charging cylinder is used, the composition of the refrigerant in the cylinder will change and become unsuitable for use.

• Exercise special care when handling tools for use with R410A.– Infiltration of dust, dirt, or water into the refrigerant system may cause the refrigerator oil to deteriorate.

PAC-AH001-1


2. Features

PAC-AH001-1 PAC-LV24AC-1

PAC-LV48AC-1, PAC-LV60AC-1 PAC-LV96AC-1, PAC-LV120AC-1

LEV AssemblyLEV Assembly Design Capacity Range Capacity Code

Model [Btu/h] [kW] Setting [Ton]PAC-LV24AC-1 4,800 - 24,000 1.8 - 7.0 0.5, 0.7, 1, 1.25, 1.5, 2PAC-LV48AC-1 24,000 - 48,000 7.0 - 14.1 2.25, 2.5, 3, 4PAC-LV60AC-1 48,000 - 60,000 14.1 - 17.6 4.5, 5PAC-LV96AC-1 60,000 - 96,000 17.6 - 28.1 6, 8PAC-LV120AC-1 96,000 - 120,000 28.1 - 35.2 10

PAC-LV96AC-1 (x2) 120,000 - 192,000 35.2 - 56.3 12, 14, 16PAC-LV120AC-1 (x2) 192,000 - 240,000 56.3 - 70.3 18, 20

PAC-AH001-1


3. Part Names and Functions

3.1. System Assembly

Contro

B

L

HI

J

K

G

F

A

CD

E

Ⓐ Air handling unitcontroller PAC-AH001-1Ⓑ Air handling unit (fieldsupply)Ⓒ Controller (field supply)Ⓓ Outdoor unitⒺ Heat exchanger (fieldsupply)Ⓕ Gas Pipe (field supply)Ⓖ Liquid Pipe (fieldsupply)Ⓗ LEV AssemblyⒾ Thermistor (gas pipe)Ⓙ Thermistor (liquid pipe)Ⓚ Thermistor (suction air)Ⓛ Thermistor (dischargeair)

3.2. Installation Detail for Single LEV Assembly[Fig. 6.2.2]

B

A

D

C

C E

Ⓐ AHU Heatexchanger(field supplied)Ⓑ LEVAssembly Ⓒ BrazingⒹ LEVⒺ To OutdoorUnit

PAC-AH001-1


3.3. Installation Detail for 2 LEV Assemblies in ParallelPiping configuration with Y-Distributors

A

B

B

E

C D C FF

G

H

G

H

Piping configuration with T-Joints

A

B

B

E

C D C FF

G

H

G

H

Ⓐ To AHU Heat exchanger (fieldsupply) Ⓑ LEV Assembly Ⓒ Brazing Ⓓ LEVⒺ To Outdoor unit Ⓕ Refrigerant pipe size ø1/2”(field supply) Ⓖ Distributor (field supply) Ⓗ Refrigerant pipe size (fieldsupply) based on outdoor unitpiping specification

PAC-AH001-1


3.4. Remote ControllerThe AHU Controller can be installed to operate using either a Mitsubishi remote controller or a 3rd partycontroller. The AHU controller cannot be operated by a Mitsubishi remote controller and a 3rd partycontroller at the same time.

3.4.1. City Multi® Remote Controller, PAC-YT53CRAU

• To operate the system using a Mitsubishi controller, disconnect the jumper connector “CNRM” locatedinside the AHU controller. Disconnecting “CNRM” activates the Mitsubishi controller.

• Once the operation mode is selected, the unit will remain in the selected mode until changed.

1. City Multi Remote Controller Buttons

.

Backlit LCD

TEMP. button

MODE button

ON/OFF lamp

ON/OFF button

FAN button

VANE button

The lamp will light up in green when turned on, and blink during startup and when an error occurs.

Pressing this button starts and stops the operation.

*1

Function not available for PAC-AH001-1*1

• Keep the remote controller out of the direct sunlight to ensure accurate measurement of roomtemperature.

• The thermistor at the lower right-hand section of the remote controller must be free from obstructionsto ensure accurate measurement of room temperature.

• To set the functions that are not available on this controller (PAC-YT53CRAU), use MA remotecontroller or the centralized controller.

PAC-AH001-1


2. City Multi Remote Controller Display

*2 icon

For City Multi, when an error occurs, power indicator will blink, and unit address (three digits) and error code (four digits) will blink.Check the error status, stop the operation, and consult your dealer.

When only error code blinks, air conditioning units stay in operation, but an error may have occurred.Check the error code, and consult your dealer.

RoomSet to

AUTO COOLHEATFAN

DRYING VENTI. SETBACK

Unit address

blinks.

Error code

blinks.

RoomSet to

AUTO COOLHEATFAN


Error code

blinks.

icon appears while the unit is operated in the energy-save mode

* All icons are displayed for explanation.

icon appears when Operation lock setting is effective.

icon appears when indoor unit functions are set up. (Refer to the Installation Manual.)

Fan speed icon

Vane icon

icon appears when the power is on.

Return Air Temperature

Operation modes

CENTRAL icon *1

CHECK icon *2

Preset temperature *3

*1 icon

Appears when one of the following local operations is prohibited: ON/OFF; operation mode; preset temperature; fan speed; vane.

CENTRAL

*3 Preset temperature

* Centigrade or Fahrenheit is selectable. Refer to the Installation Manual for details.

In COOL, DRYING, HEAT, or AUTO (single set point) modes

In AUTO (dual set point) or SETBACK modes

RoomSet to

AUTO COOLHEATFAN


Preset

temperature

RoomSet to

AUTO COOLHEATFAN


Heating preset

temperature

Cooling preset

temperature

PAC-AH001-1


3.4.2. 3rd Party Controller

• To operate the system using a 3rd party controller, connect the jumper connector “CNRM” located insidethe AHU controller as shown below. Connecting “CNRM” activates the control of the 3rd party controller.

• When using a 3rd party controller, a Mitsubishi remote controller is still required to set the operationmode, fan speed, and function settings. A Mitsubishi remote controller is not required after the initialsetting of the unit. Initial setting can be performed using the M-NET remote controllers connected to otherindoor units.

• Once the operation mode is selected, the unit will remain in the selected mode until changed.• A 3rd party controller can be installed to control the following functions of the AHU controller:

– ON/OFF (Operation) function– Temperature set point (Analog Input) function

• The AHU controller can either be controlled by a Mitsubishi controller or a 3rd party controller; it cannotbe installed to be controlled by both.

• Wiring for ON/OFF (Operation) functionConnection circuit

Operation contact specifications

SW1: Operation command(field supply)Minimum applicable loadDC5 V, 1 mA

Use a relay when the electrical wire exceeds 10 m.

X: Relay (field supply)Minimum applicable loadDC5 V, 1 mA

SW1: Operation command (field supply)

A1

A2

SW1

Maximum 10 m

SW2

A1

A2

X

X

Maximum 10 m

Relaypowersource

• Wiring for temperature set point (Analog Input)Connection circuit

Analog input

TBY Wiring: AWG22~26

B1 +DC0~10V

-DC0~10VB2

PAC-AH001-1


4. Specifications

4.1. AHU Controller SpecificationsModel PAC-AH001-1

Power Supply 208/230 VAC, 60 Hz, 1-Phase

External Finish Galvanized Steel Plate

Power Input kW 0.012

Current A 0.055

Dimension

Height

in (mm)

19.5 (496)

Width 12.8 (326)

Depth 4.7 (119)

Control Box Net Weight (without packaging) lbs (kg) 11.5 (5.2)

IP class 00

Operational Temperature Range °F (°C) -4 to 115 (-20 to 46)

Gas Pipe ThermistorResistance (B0/80 = 3460K)

0°C/15k, 10°C/9.6k20°C/6.3k, 25°C/5.2k30°C/4.3k, 40°C/3.0k

Liquid Pipe Thermistor

Return Air Thermistor

Discharge Air Thermistor

Fuse SOC, MQ4

Outdoor Units J Models:PUHY-P-T(Y)JMU-A(-BS)PURY-P-T(Y)JMU-A(-BS)PUHY-HP-TJMU-A(-BS)

K Models:PUHY-P-T(Y,Z)KMU-A(-BS)PURY-P-T(Y,Z)KMU-A(-BS)

PURY-HP-T(Y)KMU-A-H

L Models:PUHY-P-T(Y,Z)LMU-A(-BS)PURY-P-T(Y,Z)LMU-A(-BS)

PQHY-P-T(Y,Z)LMU-APQRY-P-T(Y,Z)LMU-A

PQHY-P-T(Y,Z)LMU-A1PQRY-P-T(Y,Z)LMU-A1

Refrigerant Type R410A

Installation manual PA79D271H01

4.2. LEV Assembly SpecificationsModel PAC-LV24AC-1 PAC-LV48AC-1 PAC-LV60AC-1 PAC-LV96AC-1 PAC-LV120AC-1

LEV Model EFM-40 EFM-80 EFM-A0 EFM-80 (x2) EFM-A0 (x2)

LEV Motor 12VDC Stepping motor drive (0~1400 pulse)Lock nut fastening torque: 14 N∙m

Cable Length ft [m] 16 [5]

Connection Pipe Di-ameter

in (mm) 3/8 (9.52) 1/2 (12.7)

PAC-AH001-1


5. Outlines and Dimensions

5.1. AHU ControllerPAC-AH001-1

12.8

in

[326]

19.5 in

[496]

17.3 in

[440]

12.1

in

[307]

4.7

in

[119]

19.5 in

[496]

4.7 in

[119]

11.7

in

[296]

4.5 in

[114]

11.3

in

[288]

PAC-AH001-1


5.2. Single Valve LEV AssemblyPAC-LEV24AC-1

4.5

in

[114]

16.4 in

[416]

4.1

in

[104]

6.7

in

[171]

PAC-LEV48AC-1, PAC-LEV60AC-116.5 in

[419]

4.5

in

[114]

7.2

in

[183]

PAC-AH001-1


5.3. Double Valve LEV AssemblyPAC-LEV96AC-1, PAC-LEV120AC-1

23.2 in

[590]

5.6 in

[142]

6.4

in

[163] 9.1

in

[232]

4.0

in

[102]

PAC-AH001-1


6. Wiring DiagramS

YM

BO

L E

XP

LA

NA

TIO

N

Sym

bo

lN

am

e

I.BIn

do

or c

on

trol b

oa

rd

LE

D 1

LE

D (P

ow

er s

up

ply

)

LE

D 2

LE

D (re

mo

te c

on

trolle

r su

pp

ly)

SW

1S

witc

h (fo

r mo

de s

ele

ctio

n)

SW

2S

witc

h (fo

r ca

pa

city

co

de

)

SW

3S

witc

h (fo

r mo

de s

ele

ctio

n)

SW

4S

witc

h (fo

r mo

de

se

lectio

n)

SW

AS

witc

h (fo

r mo

de

se

lectio

n)

SW

5S

witc

h (N

o fu

nctio

n)

SW

CS

witc

h (N

o fu

nctio

n)

SW

ES

witc

h (F

an

Fo

rce

d O

N)

SW

11

Sw

itch

(1st d

igit a

dd

ress s

et)

SW

12

Sw

itch

(10

ths d

igit a

dd

ress s

et)

SW

14

Sw

itch

(Bra

nch

No

.)

CN

10

5C

on

ne

cto

r (IT te

rmin

al)

CN

FH

um

idifie

r Inp

ut

CN

25

Hu

mid

ifier O

uto

ut

P.B

Po

we

r su

pp

ly b

oa

rd

TB

2P

ow

er s

up

ply

term

ina

l blo

ck

TB

5M

-NE

T te

rmin

al b

lock

TB

-ATe

rmin

al b

lock A

TB

-BTe

rmin

al b

lock B

TB

-CTe

rmin

al b

lock C

TB

-DTe

rmin

al b

lock D

TH

21

Th

erm

isto

r (inle

t air)

TH

22

Th

erm

isto

r (liqu

id p

ipe

)

TH

23

Th

erm

isto

r (ga

s p

ipe

)

TH

24

Th

erm

isto

r (ou

tlet a

ir)

F1

, F2

Fu

se

AC

25

0V

10

A

X0

1, X

02

, X0

3R

ela

y (F

an

ou

tpu

t sig

na

l)

CN

RM

Co

nn

ecto

r (Re

mo

te O

N/O

FF

)

Vi

Po

we

r su

pp

ly (F

ield

su

pp

lied

, exte

rna

l)[M

ax D

C3

0V

1 A

, Ma

x A

C2

50

V 1

A]

Xi

Re

lay (F

ield

su

pp

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PAC-AH001-1


7. Microprocessor Control

7.1. Cool Operation7. Microprocessor Control

7.1. Cool Operation

Cool Operation (Available Control Modes)

Control Mode

Return Air Control Discharge Air Control

Controller Type

City Multi Controller ● ●

3rd

Party Controls

Type 1 *1 ●

Type 2 *1 ●

*1 Return Air Control not available when operating with 3rd

Party Controls

1.) How to operate

(1)Using City Multi Controller

1) Press POWER ON/OFF button.

2) Press the operation MODE button to display COOL.

3) Press the TEMP. button to set the desired temperature.

Note:

The set temperature changes 2 °F when the TEMP. button is pressed one

time.

Cooling Set-point Range with City Multi Controller

• Return Air Control: 67~86 °F [19~30 °C]

• Discharge Air Control: 46~86 °F [8~30 °C]

(2)Using 3rd

Party Controller

1) Close the contact for “Remote Signal Input” on TB-B to turn unit ON.

2) Input 0-10 VDC signal to “Analog Input” on TB-A to set the temperature set point

Control Type

Type 1 (For Temperature Control) (SWA-2)

Type 2 (For Capacity Control) (SWA-3)

Control Relationship

(COOL)

Set point temperature = 5.6 X Ain + 40.96 [°F] [Ain = Input Temperature]

Set point temperature = -5.6 X Ain + 100.32 [°F] [Ain = Input Temperature]

Note:

COOL operation mode must be set using City Multi controller

2.) Thermo-regulating function

(1) Thermo-regulating function (Function to prevent restarting for 3 minutes)

When indoor units are connected to the PUHY/PURY/PQHY/PQRY series of outdoor units.

• Thermo-ON/OFF conditions

7.1.1. How to operate

(1) Using CITY MULTI Controller

.

1. Press POWER ON/OFF button.2. Press the operation MODE button to display COOL.3. Press the TEMP. button to set the desired temperature.

NOTEThe set temperature changes 2 °F whenthe TEMP. button is pressed one time.

Cooling Set-point Range with City Multi Controller

• Return Air Control: 67~86 °F [19~30 °C]• Discharge Air Control: 46~86 °F [8~30 °C]

(2) Using 3rd Party Controller

1. Close the contact for “Remote Signal Input” on TB-B to turn unit ON.2. Input 0-10 VDC signal to “Analog Input” on TB-A to set the temperature set point

PAC-AH001-1


Control TypeType 1 (For Temperature Control)

(SWA-2)Type 2 (For Capacity Control)

(SWA-3)

ControlRelationship

(COOL)

Set point temperature = 5.625 X Ain+ 40.775 [°F]

[Ain = Input Temperature]

Set point temperature = -5.625 X Ain+ 100.4 [°F]


Input Voltage

Setting Temperature

Input Voltage

Setting Temperature

NOTECOOL operation mode must be set using City Multi controller

Cooling Set-point Range with 3rd Party Controller

• Discharge Air Control: 46.4~82.4 °F [8~28 °C]

PAC-AH001-1


7.1.2. Thermo-regulating function



• Thermo-ON/OFF conditions TH24: Discharge air temperature TH21: Return air temperature (Thermistor or remote controller) To: The set point temperature on the remote controller

Return Air Control Discharge Air ControlThermo OFF TH21 < To - 0.9 °F [0.5 °C] [a) or b) or c)]

a) TH21 < To b) TH21 < 57.2 °F [14 °C] c) TH24 < To – 3.6 °F [2 °C] continues over 10 minutes

Thermo ON TH21 > To +0.9 °F [0.5 °C] [a) & b) & c) & d)] a) TH24 > To +1.8 °F [1 °C] b) TH21 > 59 °F] [15 °C] c) TH21 > To +1.8 °F [1 °C] d) Thermo-OFF continues over 3 minutes

(2) Anti-freezing control

• Detected condition:When the liquid pipe temp. (TH22) is 33.8° F or less 16 minutes after compressors start up, anti-freezingcontrol starts and unit goes to thermo OFF.

• Released condition: The timer which prevents reactivating is set for 3 minutes, and anti-freezing control is cancelled when anyone of the following conditions is satisfied. 1) Liquid pipe temp. (TH22) reaches 50° F or above.2) The condition of the thermo OFF has become complete by thermo-regulating, etc.3) The operation mode is changed to mode other than COOL.4) The operation is stopped.

7.1.3. Fan(1) Set the fan speed using the remote controller

Type Fan speed notch3 speeds [Low], [Med], [High]

• [Auto] fan speed control is not available.

PAC-AH001-1


7.1.4. Float switch control[ VII Microprocessor Control ]

- 13 -HWE13010 GB

In the air : Detected that the float switch is OFF for 15 seconds.

2. Dry operation

1. Termoregulating function(1) Thermo regulating function (Function to prevent restarting for 3 minutes)

�Setting the Dry thermo by the thermo regulating signal and the room temperature (TH21).Dry thermo ON Room temperature desired temperature + 2°FDry thermo OFF Room temperature desired temperature

(2) Frozen prevention control�No control function

2. Fan(1) Indoor fan operation controlled depends on the compressor conditions.

<How to operate>1. Press POWER [ON/OFF] button.2. Press the operation [Mode] button to display DRY.3. Press the [Set Temperature] button to set the desired tempera-

ture.

The set temperature changes 2°F when the [Set Temperature] button is pressed one time. Dry 67 to 87°F

Room temperature3 min. passed since starting operation Dry thermo

ON time (min)Dry thermo

OFF time (min)Thermo regulating signal Room temperature (T1)

Over 64°FON

T1 83°F 9 3

83°F > T1 79°F 7 3

79°F > T1 75°F 5 3

75°F > T1 3 3

OFF Unconditional 3 10

Less than 64°F Dry thermo OFF

Dry thermo Fan speed notch

ON [Low]

OFFExcluding the following Stop

Room temp. < 64°F [Low]

ON

OFF

15sec. 15sec. 15sec. 1min.30sec. 1min.30sec.

Float SW

In the water In the air In the water Error

postponement

Drain pump

abnormal

PAR-21MAAU

ON/OFF

FILTER

CHECK

OPERATION CLEAR

TEST

TEMP.

MENU

BACK DAYMONITOR/SET

CLOCK

ON/OFF

˚F˚C

˚F˚C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

ON

OFF

Hr

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLYSIMPLE

AUTO OFF

7.2. Dry Operation7.2. Dry Operation

Dry Operation (Available Control Modes)

Control Mode


Controller Type

City Multi Controller ● *1

3rd

Party Controls

Type 1 *1 *1

Type 2 *1 *1

*1 Dry mode only available when using City Multi Controller set to Return Air Control

1.) How to operate


2) Press the operation MODE button to display DRY.


Note:


time.

Dry Set-point Range


2.) Thermo regulating function

(1) Thermo regulating function (Function to prevent restarting for 3 minutes)

Setting the Dry thermo by the thermo regulating signal and the room temperature (TH21).

• Room temperature ≥ desired temperature + 2° F ···Dry Thermo ON • Room temperature < desired temperature ···Dry Thermo OFF

Room

temperature

3 min. passed since starting operation Dry thermo

ON time (min) Dry thermo

OFF time (min) Thermo regulating

signal Room temperature

(TH21)

Over 64 °F ON

T1 ≥ 83°F 9 3

83°F > T1 ≥ 79°F 7 3

79°F > T1 ≥ 75°F 5 3

75°F > T1 3 3


Less than 64°F DRY thermo OFF

(2) Frozen prevention control

• No control function

3.) Fan

(1) Indoor fan operation controlled depends on the compressor conditions.


ON [Low]

OFF Room temp. ≥ 64°F Stop




.

1. Press POWER ON/OFF button.2. Press the operation MODE button to display DRY.3. Press the TEMP. button to set the desired temperature.


Dry Set-point Range




Control of Dry Thermo ON and Dry Thermo OFF by the thermo regulating signal and the room temperature(TH21).

• Room temperature ≥ desired temperature + 2° F ∙∙∙Dry Thermo ON• Room temperature < desired temperature ∙∙∙Dry Thermo OFF

PAC-AH001-1


Roomtemperature

3 min. passed since starting operationDry thermo

ON time(min)

Dry thermoOFF time

(min)Thermo

regulatingsignal

Room temperature(TH21)

Over 64 °FON

TH21 ≥ 83°F 9 383°F > TH21 ≥ 79°F 7 379°F > TH21 ≥ 75°F 5 3

75°F > TH21 3 3OFF Unconditional 3 10

Less than 64°F DRY thermo OFF

(2) Frozen prevention control

• No control function

7.2.3. Fan(1) Indoor fan operation control depends on the compressor conditions.

Dry thermo Fan speed notchON [Low]

OFFRoom temp. ≥ 64°F StopRoom temp. < 64°F [Low]

7.3. Fan Operation

Fan Operation(Available Control Modes)

Control ModeReturn Air Control Discharge Air Control

Controller TypeCity Multi Controller ● ●

3rd Party ControlsType 1 ● ●Type 2 ● ●

PAC-AH001-1



.

1. Press POWER ON/OFF button.2. Press the operation MODE button to display FAN.

7.3.2. Fan(1) Set by remote controller




- 13 -HWE13010 GB


2. Dry operation






ture.





Over 64°FON

T1 83°F 9 3

83°F > T1 79°F 7 3

79°F > T1 75°F 5 3

75°F > T1 3 3




ON [Low]



ON

OFF


Float SW


postponement

Drain pump

abnormal

PAR-21MAAU

ON/OFF

FILTER

CHECK

OPERATION CLEAR

TEST

TEMP.

MENU

BACK DAYMONITOR/SET

CLOCK

ON/OFF

˚F˚C

˚F˚C

ERROR CODE

AFTER

TIMER


ON

OFF

Hr

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLYSIMPLE

AUTO OFF

PAC-AH001-1


7.4. Heat Operation7.4. Heat Operation

Heat Operation (Available Control Modes)

Control Mode


Controller Type


3rd

Party Controls

Type 1 *1 ●

Type 2 *1 ●


Party Controls

1.) How to operate



2) Press the operation MODE button to display HEAT.


Note:


time.

Heating Set-point Range with City Multi Controller



(2)Using 3rd

Party Controller



Control Type

Type 1 (For Temperature Control)(SWA-2)

Type 2 (For Capacity Control)(SWA-3)


(HEAT)


Note:

HEAT operation mode must be set using City Multi controller

Heating Set-point Range with 3rd

Party Controller


2.) Thermo-regulating function





.

1. Press POWER ON/OFF button.2. Press the operation MODE button to display HEAT.3. Press the TEMP. button to set the desired temperature.

NOTEThe set temperature changes 2 °F when theTEMP. button is pressed one time.

Heating Set-point Range with City Multi Controller



1. Close the contact for “Remote Signal Input” on TB-B to turn unit ON2. Input 0-10 VDC signal to “Analog Input” on TB-A to set the temperature set point



(SWA-3)

Control Relationship(HEAT)

Set point temperature = 5.625 X Ain + 40.775 [°F][Ain = Input Temperature]

Input Voltage

Setting Temperature

PAC-AH001-1


NOTEHEAT operation mode must be set using City Multi controller

Heating Set-point Range with 3rd Party Controller





• Thermo-ON/OFF conditions TH24: Discharge air temperature TH21: Return air temperature (Thermistor or remote controller) To: The set point temperature on the remote controller

Return Air Control Discharge Air ControlThermo OFF TH21 > To + 0.9 °F [0.5 °C] [a) or b) or c)]

a) TH21 > To b) TH21 > 59 °F [15 °C]*1

c) TH24 > To + 5 °F [9 °C] continues over 10 minutes

Thermo ON TH21 < To - 0.9 °F [0.5 °C] [a) & b) & c) & d)] a) TH24 < To - 1.8 °F [1 °C] b) TH21 < 57.2 °F] [14 °C]*1

c) TH21 < To - 1.8 °F [1 °C] d) Thermo-OFF continues over 3 minutes

*1 The value indicated in bold can be changed by dip-switch SW3-8 and SW3-9.

PAC-AH001-1


7.4.3. Fan(1) Set the fan speed using the remote controller



(2) Hot adjust mode

The fan controller enters the hot adjust mode when any of the following conditions are met.

1. When starting the HEAT operation2. When the thermo regulating function changes from OFF to ON.3. After defrosting operation

[ VII Microprocessor Control ]

- 15 -HWE13010 GB

4. Heat operation

1. Termoregulating function(1) Thermoregulating function (Function to prevent restarting for 3 minutes)

�Room temperature desired temperature -2°F ···Thermo ON�Room temperature desired temperature ···Thermo OFF

2. Fan(1) By the remote controller setting (switch of 3 speeds+Auto)

�When [Auto] is set, fan speed is changed depending on the value of:Desired temperature - Room temperatureGive priority to under-mentioned controlled mode

1) Hot adjust mode2) Preheating exclusion mode3) Thermo OFF mode (When the compressor off by the thermoregulating)4) Cool air prevention mode (Defrosting mode)5) Capacity increasing mode

(2) Hot adjust mode�The fan controller becomes the hot adjuster mode for the following conditions.

1) When starting the HEAT operation2) When the thermoregulating function changes from OFF to ON.3) When release the HEAT defrosting operation

A: Hot adjust mode starts.B: 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95°F or more.C: 2 minutes have passed since the condition A. (Terminating the hot adjust mode)

*1 "STAND BY" will be displayed during the hot adjust mode.

(3) Preheating exclusion mode�When the condition changes the auxiliary heater ON to OFF (thermoregulating or operation stop, etc.), the indoor fan operates in [Low] mode for 1 minute.

<How to operate>1. Press POWER [ON/OFF] button.2. Press the operation [Mode] button to display HEAT.3. Press the [Set Temperature] button to set the desired tempera-

ture.

The set temperature changes 2°F when the [Set Temperature] button is pressed one time. Heating 63 to 83°F.

<Display in HEAT operation>[DEFROST]The [DEFROST] symbol is only displayed during the defrost op-eration.[STANDBY]The [STANDBY] symbol is only displayed during the hot adjust mode.

Type Fan speed notch

3 speeds + Auto type [Low], [Med], [High], [Auto]

PAR-21MAAU

ON/OFF

FILTER

CHECK

OPERATION CLEAR

TEST

TEMP.

MENU

BACK DAYMONITOR/SET

CLOCK

ON/OFF

˚F˚C

˚F˚C

ERROR CODE

AFTER

TIMER


ON

OFF

Hr

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLYSIMPLE

AUTO OFF

CA B

[OFF]

[Low]

Set fan speed by the remote controller

Hot adjust mode *1

*1 "STAND BY" will be displayed during the hot adjust mode.A: Hot adjust mode starts.B: 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95°F ormore.C: 2 minutes have passed since the condition A. (Terminating the hot adjust mode)

(3) Preheating exclusion mode

When the condition changes the auxiliary heater from ON to OFF (thermo regulating or operation stop,etc.), the indoor fan operates in [Low] mode for 1 minute.

(4) Thermo OFF mode

1. Return Air ControlWhen the thermo regulating function changes to OFF, the indoor fan operates according to SW1-8 andSW1-7.

2. Discharge Air ControlWhen the thermo regulating function changes to OFF, the indoor fan speed does not change.

(5) Heat defrosting mode

The indoor fan stops.

PAC-AH001-1



- 13 -HWE13010 GB


2. Dry operation






ture.





Over 64°FON

T1 83°F 9 3

83°F > T1 79°F 7 3

79°F > T1 75°F 5 3

75°F > T1 3 3




ON [Low]



ON

OFF


Float SW


postponement

Drain pump

abnormal

PAR-21MAAU

ON/OFF

FILTER

CHECK

OPERATION CLEAR

TEST

TEMP.

MENU

BACK DAYMONITOR/SET

CLOCK

ON/OFF

˚F˚C

˚F˚C

ERROR CODE

AFTER

TIMER


ON

OFF

Hr

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLYSIMPLE

AUTO OFF

7.5. Auto Operation [Automatic cool / heat change over operation]7.5. Auto Operation [Automatic cool / heat change over operation]

Auto Operation (Available Control Modes)

Control Mode


Controller Type


3rd

Party Controls

Type 1 *1 ●

Type 2 *1 *2


Party Controls *2 Auto mode not available in Discharge Air Control with Type 2 operation using 3

rd Party Controls

1.) How to operate



2) Press the operation MODE button to display AUTO.


Note:


time.

Auto Set-point Range with City Multi Controller



(2)Using 3rd

Party Controller



Control Type

Type 1 (For Temperature Control) (SWA-2)

Type 2 (For Capacity Control) (SWA-3)


(COOL & HEAT)


Auto mode N/A for Type 2 Control


Note:

HEAT operation mode must be set using City Multi controller

Auto Set-point Range with 3rd

Party Controller


2.) Initial operation mode

(1) HEAT Mode: Room temperature < Desired temperature

(2) COOL Mode: Room temperature ≥ Desired temperature



.

1. Press POWER ON/OFF button.2. Press the operation MODE button to display AUTO.3. Press the TEMP. button to set the desired temperature.


Auto Set-point Range with City Multi Controller



1. Close the contact for “Remote Signal Input” on TB-B to turn unit ON2. Input 0-10 VDC signal to “Analog Input” on TB-A to set the temperature set point

PAC-AH001-1




(SWA-3)

Control Relationship(COOL & HEAT)

Set point temperature = 5.625 X Ain+ 40.96 [°F]



Input Voltage

Setting Temperature Auto mode N/A for Type 2 Control

NOTEAUTO operation mode must be set using City Multi controller

Auto Set-point Range with 3rd Party Controller


7.5.2. Initial operation mode(1) HEAT Mode: Room temperature < Desired temperature

(2) COOL Mode: Room temperature ≥ Desired temperature

7.5.3. Mode change(1) HEAT Mode -> COOL Mode: Room temperature > Desired temperature + 3°F (continued over 3 min)

(2) COOL Mode -> HEAT Mode: Room temperature < Desired temperature - 3°F (continued over 3 min)

7.5.4. COOL mode(1) Same control as cool operation

7.5.5. HEAT mode(1) Same control as heat operation

The value "3°F" is modifiable from 1.8°F to 9°F by maintenance tool.

PAC-AH001-1


7.6. Heater Control7.6. Heater Control

Heater Operation (Available Control Modes)

Control Mode


Controller Type

City Multi Controller ● *1

3rd

Party Controls

Type 1 *1 *1

Type 2 *1 *1

*1 Heater operation only available when operating in Return Air Control using a City Multi Controller

1.) Control specifications and DIP S/W setting

• Table 1 shows the function settings the field-installed heater. Select the desired pattern in the table below, and set the

DIP SW on the outdoor and indoor units as shown in Table 1.

Table 1.

• Table 2 shows how the field-installed heater is controlled.

Table. 2 [Heater Control Table]

7.6.1. Control specifications and DIP S/W setting

• Table 1 shows the function settings for the field-installed heater. Select the desired pattern in the tablebelow, and set the DIP SW on the outdoor and indoor units as shown in Table 1.Table 1. [DIP S/W]

8.5 Electric Heater Control

NOTE

• Electric heat will only operate when DIP SW are set for AHU controller to operate in Return Air Control.• If DIP SW are set for AHU controller to operate in Return Air Control, Damper Signal Output can be used to control 2nd stage electric heat (EH2).

• Control specifications and DIP S/W setting• Table 1 shows the function settings the field-installed heater. Select the desired pattern in the table below, and set the DIP SW on the outdoor and indoor units as shown in Table 1.

Table 1. [DIP S/W]

Outdoor unit setting Condition of outdoor unit

PAC-AH001-1

DIP SW(AHU controller)a

Heater Control

SW3-2 SW3-4 Mode Defrost Error

DIP S/W OFF In the case of: TKMU/YKMU: SW4: 932 OFF TLMU/YLMU: SW4: 932 OFF

N / A

OFF - Heater not Available

ON OFF Heater Available OFF OFF

ON ON Heater Available ON ONb

DIP S/W ON In the case of:

TKMU/YKMU:

SW4: 932 ON

TLMU/YLMU:

SW4: 932 ON Parameters a/b/c/d are set by

maintenance tool.

Normal drive

Defrost drive

H/P drive

H/P drive

Conditio

n o

f O

/U

Outdoor temp.

Normal DriveOFF - Heater not Available


ON ON Heater Available ON

Defrost drive

H/P drive

H/P stop

OFF - Heater not Available


ON ON Heater Available ON

aDefault settings: SW3-2 OFF, SW3-4 OFbHeater will not operate during all error modes. Heater will only operate during a communication error between indoor unit and outdoor unit.cHeater will not operate during all error modes. Heater will only operate during a communication error between indoor unit and outdoor unit.dHeater will not operate during all error modes. Heater will only operate during a communication error between indoor unit and outdoor unit.

• Table 2 shows how the field-installed heater is controlled

1

ONb

ONb

• Table 2 shows how the field-installed heater is controlled.Table 2. [Heater Control Table]

Table 2

Table 2. [Heater Control Table]

1

Mode Change

Condition

(TO -TRA)

> 2.7 °F[1.5 °C]AND

TRA has not

increased by

0.9 °F [0.5°C]

in X min

EH1 ON for

> 5 minAND

(TO -TRA)

> 2.7 °F [1.5 °C]AND

TRA has not

increased by

0.9 °F [0.5°C]

in 5 min

(TO -TRA)

< 0.9 °F [0.5°C]

EH1 ON ● AND ●

EH2 ON ● AND ● AND ●

EH1 OFF ●

EH2 OFF ●

KEY

� EH1: Electric Heater 1 (CN24)

� EH2: Electric Heater 2 (CN27)

� TO: Set point temperature

� TRA: Return Air temperature

� X: Time delay (Selectable. Default is 20 min. Selectable to 10, 15, or 25 min)

NOTEWhen electric heat signal is ON, Fan speed signal output will automatically go to HIGH.

PAC-AH001-1


• Table 3 shows how the time delay is selectedTable 3. [Time Delay Selection Table]

Function Settinga Actionb

108-1 Set Time Delay to 10 minutes108-2 Set Time Delay to 15 minutes108-3 Set Time Delay to 20 minutesc

108-4 Set Time Delay to 25 minutesaTime delay can only be selected with MA controller. If use of a non-MA controller is desired, the time delay must first be selectedwith the MA controller. Then the non-MA controller can be attached and used.bTime delays are approximate.cThe default time delay setting is 20 minutes.

• Chart 1 and Table 4 show an example of heater operation.Chart 1 [Heater Operation Example]

EH2ON

OFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ON

OFFEH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

> 5

min

Table. 4 [Heater Operation Example]

24Specifications are subject to change without notice. © 2017 Mitsubishi Electric US, Inc.

• Chart 1 and Table 4 show an example of heater operation.

Chart 1 [Heater Operation Example]

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

> 5 min

Table. 4 [Heater Operation Example] Step Condition Result

(To -TRA) > 2.7 °F [1.5 °C] AND TRA has not increased by 0.9 °F [0.5°C] in X min EH1 ON

(To -TRA) < 2.7 °F [1.5 °C] AND TRA increasing faster than 0.9 °F [0.5°C] in 5 min EH2 not ON

(To -TRA) < 0.9 °F [0.5°C] EH1 OFF

(To -TRA) > 2.7 °F [1.5 °C] AND TRA has not increased by 0.9 °F [0.5°C] in X min EH1 ON

(To -TRA) > 2.7 °F [1.5 °C] AND TRA not increasing faster than 0.9 °F [0.5°C] in 5 min EH2 ON

(To -TRA) < 0.9 °F [0.5°C] EH1 OFFEH2 OFF

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

EH2 ONOFF

To - 0.9 °F [0.5 °C]

To - 2.7 °F [1.5 °C]

ONOFF

EH1

To

TRA

X min X min X min

①

②

③

④ ⑤

⑥

①

②

③

PAC-AH001-1


7.7. Humidifier Control13.5. Humidiier

Humidiier Control

1. The humidistat closes CNF

3. CN25 provides 12VDC to turn on the Humidiier

5. If defrost starts during humidiier operation CN25 de-energizes

Non-Voltage a-contact inputContact rating voltage >=15VDCContact Rating Current > = 0.1 AMinimum Applicable Load =< 1mA at DC

OFF*OFF

Heat operation & Thermo OFFOFF

Heat operation & Thermo ON

ONHeat operation & Thermo OFF OFFHeat operation & Thermo ON ON

ONOFF

Heat operation & Thermo OFFOFF


ONHeat operation & Thermo OFF

ONHeat operation & Thermo ON

OFF

The fan continues to run for 30 seconds after the humidiier stops.*Factory Setting

max 30 ft.

Sequence of operation:

1. The humidistat closes CNF2. The fan starts on high3. CN25 provides 12VDC to turn on the Humidifier (do not exceed 1 Watt draw per relay)4. When the Humidistat opens, the fan continues to run for 30 seconds to clear the ductwork of moist air5. If defrost starts during humidifier operation CN25 de-energizes

Humidistat:Non-Voltage a-contact input

Contact rating voltage >=15VDC

Contact Rating Current > = 0.1 A

Minimum Applicable Load =< 1mA at DC

PAC-AH001-1


DipSwitchSetting

HumidistatOutput Condition

(No Defrost/No Error)CN25

Output Fan Speed

SW1-6 CNF Input

OFFa

OFFHeat operation & Thermo OFF

OFF RC SettingHeat operation & Thermo ON

ONHeat operation & Thermo OFF OFF RC SettingHeat operation & Thermo ON ON High

ONOFF

Heat operation & Thermo OFFOFF RC Setting


ONHeat operation & Thermo OFF

ON HighHeat operation & Thermo ON

─ ─ Except for heat operation OFF RC SettingaFactory Setting

RC: Remote controller

The fan continues to run for 30 seconds after the humidifier stops.

PAC-AH001-1


8. Troubleshooting

8.1. Check Methods1. Component and check points

(1) Thermistor

• Return air thermistor (TH21)• Liquid pipe thermistor (TH22)• Gas pipe thermistor (TH23)• Discharge air thermistor (TH24)

Rt: Thermistor Resistance [kΩ]

t: Thermistor Measurement Temperature [°C]

Disconnect the connector and measure the resistance between terminals with a tester.

(Ambient temperature 10°C - 30°C [50°F-86°F])

Normal Abnormal4.3kΩ - 9.6kΩ Open or Short

(Refer to the thermistor characteristic graph below.)

1) Thermistor characteristic graph

Low-temperature thermistor

• Room temperature thermistor (TH21)• Liquid pipe thermistor (TH22)• Gas pipe thermistor (TH23)• Discharge air thermistor (TH24)

• Thermistor R0 = 15 kΩ±2.9%• Multiplier of B = 3460 kΩ±1%

0°C 32°F 15kΩ10°C 50°F 9.6kΩ20°C 68°F 6.3kΩ25°C 77°F 5.2kΩ30°C 86°F 4.3kΩ40°C 104°F 3.0kΩ

(A) Temperature [°C][°F]

(B) Resistance [kΩ]

(2) Linear expansion valve

Disconnect the connector, and measure the resistance between terminals with a tester.

Refer to the next page for details.

Normal Abnormal1-5

White-Red2-6

Yellow-Brown

3-5Green-Red

4-6Black-Brown

Open or short

200 kΩ ± 10%

(A) Brown

(B) Red

(C) Black

(D) Green

(E) Yellow

(F) White

1) Summary of linear expansion valve (LEV) operation

• The LEV is operated by a stepping motor, which operates by receiving a pulse signal from the indoorcontrol board.

• The LEV position changes in response to the pulse signal.

Indoor control board and LEV connection

PAC-AH001-1


PAC-AH001-1


(2) Linear expansion valve

Disconnect the connector, and measure the resistance between terminals with a tester.

Refer to the next page for details.

Normal Abnormal1-5

White-Red2-6

Yellow-Brown

3-5Green-Red

4-6Black-Brown

Open or short

200 kΩ ± 10%

(A) Brown

(B) Red

(C) Black

(D) Green

(E) Yellow

(F) White

1) Summary of linear expansion valve (LEV) operation

• The LEV is operated by a stepping motor, which operates by receiving a pulse signal from the indoorcontrol board.

• The LEV position changes in response to the pulse signal.

Indoor control board and LEV connection

PAC-AH001-1


(A) Brown

(B) Red

(C) Black

(D) Green

(E) Yellow

(F) White

(G) Control board

(H) Connection (CN60, CN7V)

(I) Drive circuit

(J) Linear expansion valve

Pulse signal output and valve operation

Phase numberOutput pulse

1 2 3 4Φ1 ON OFF OFF ONΦ2 ON ON OFF OFFΦ3 OFF ON ON OFFΦ4 OFF OFF ON ON

The output pulse changes in the following order:

When the valve closes 1 -> 2 -> 3 -> 4 -> 1

When the valve opens 4 -> 3 -> 2 -> 1 -> 4

• When the valve position remains the same, all output signals will be OFF.• If any output signal is missing or if the signal remains ON, the motor vibrates and makes clicking noise.

2) LEV operation

(a) Close(b) Open(c) Fully open valve (1400 pulses)(d) No. of pulses(e) Extra tightening (80 - 100 pulse)(f) Valve opening degree

• When the power is turned on, a pulse signal of 2200 pulses is output (valve closure signal), to bring thevalve to position A.

PAC-AH001-1


• When the valve is operating normally, it is free of vibration noise. If the valve locks or when it goes frompoint E to A in the figure, it makes a louder noise than would be heard when there is an open phase.

• Check for abnormal sound/vibration by placing the metal tip of a screwdriver against the valve and thehandle side against your ear.

3) Troubleshooting

Symptom Checking Criteria RemedyCircuit failure onthe microcomputer

Disconnect the connectors on the control board, andconnect LEDs to test the circuit as shown below.

resistance : 0.25W, 1kΩLED : DC15V, 20mA or morePulse signals are output for 10 seconds when the mainpower is turned on. If there are LEDs that do not light upat all or remain lit after the pulses are turned off, there isa problem with the driving circuit.

Replace theindoor controlboard if drivingcircuit failure isdetected.

Locked LEV The motor will idle and make small clicking noise if it isrun while the LEV is locked. If this clicking noise is heardboth when the valve is fully closed and while it is beingopened, it indicates a problem.

Replace the LEV.

Disconnected orshorted LEV motorcoils

Check the resistance between the coils with a tester(white-red, yellow-brown, green-red, black-brown). IfLEV is disconnected or a short exists between LEVcoils, LEV resistance will read abnormal.The normalrange of resistance is 200 Ω±10%.

Replace the LEV.

Valve closurefailure (leakyvalve)

To check the LEV on the indoor unit, check the indoorunit liquid pipe temperature that appears on theoperation monitor on the outdoor unit's multi controlboard while operating the indoor unit in question in theFAN mode and the other indoor units in the coolingmode.(A) Thermistor (TH22)

[ VIII Troubleshooting ]

- 24 -HWE13010 GB

(4) Drain-up mechanismMeasure the resistance between the terminals with a tester. (coil temperature 20°C[68°F])

(5) Drain float switch (CN4F)Disconnect the connector, and measure the resistance between terminals with a tester.

Valve closure fail-ure (leaky valve)

To check the LEV on the indoor unit, check the indoor unit liquid pipe temperature that appears on the operation monitor on the outdoor unit's multi control board while operating the indoor unit in question in the FAN mode and the other indoor units in the cooling mode.

Replace the LEV if the amount of leakage is great.

(A) Termistor (TH22)

Normally, the LEV is fully closed while the unit is in the FAN mode. If the valve is leaky, liquid pipe thermistor reading will be lower than normal. If it is significantly lower than the inlet temperature on the remote controller, valve closure failure is suspected. If the amount of leakage is insignificant, replacement of LEV is unnec-essary unless it is causing a problem.

Misconnections of connectors or con-tact failure

Perform a visual check for disconnected connectors.Perform a visual check of lead wire color.

Disconnect the connectors on the control board and perform a continuity test.

Symptom Checking Criteria Remedy

(A)

LEV

Normal Abnormal

340 Open or short

(A) Moving part

(B) Switch

(C) Magnet

Position of the moving part Normal Abnormal

Up Short (any position but short)

Down Open (any position but open)

13

1234

(A)

(A)

(B)(C)

Replace the LEVif the amount ofleakage is great.

PAC-AH001-1


Symptom Checking Criteria RemedyNormally, the LEV is fully closed while the unit is in theFAN mode. If the valve is leaky, liquid pipe thermistorreading will be lower than normal. If it is significantlylower than the inlet temperature on the remote controller,valve closure failure is suspected. If the amount ofleakage is insignificant, replacement of LEV isunnecessary unless it is causing a problem.

Misconnections ofconnectors orcontact failure

Perform a visual check for disconnected connectors.Perform a visual check of lead wire color.

Disconnect theconnectors onthe control boardand perform acontinuity test.

8.2. Address switch settingMake sure that power to the unit is turned off.

PAC-AH001-1


(A) Indoor unit control board

(B) Factory setting (all models)

1. Address settings vary in different systems. Refer to the section on address setting in the outdoor unitinstallation manual.

2. Address is set with a combination of SW12 (10's digit) and SW11 (1's digit). To set the address to "3,"set SW12 to "0" and SW11 to "3." To set the address to "25," set SW 12 to "2" and SW 11 to "5."

PAC-AH001-1


8.3. Voltage test points

CND F01

CNEC1

CNEC2

CN3A

CN2M

SW4

CN24-1

CN27 (CN24-2)

CN32

Indoor controller board

SW3

CN41

CN51

CN52

CN20

CN22

CN7V

CN4F

CN44

SWE

SW2

SW1

CN2A

CNXB2

CN30

CN60

FMNC

SWA

F01 Fuse (AC 250V 6.3A)

CND Power supply voltage (220 - 240VAC)

CN2M For M-NET transmission cableconnection (24 - 30VDC)

SWE Fan Forced ON

SW1 Mode selection

SW2 Capacity setting

SW3 Mode selection

SW4 Mode selection

SWA Mode selection

CN2A Analog input

CN32 Remote signal input

CN3A For MA remote controller cableconnection(10 - 13 VDC (Between 1 and 3))

CN30 Error signal input

CN52 Connect to indoor power board

CN51 To fan signal relay

CNXB2 To fan signal relay

CN41 No function

CN44 Thermistor (liquid/gas temperature)

CN20 Thermistor (Inlet air temperature)

CN22 Thermistor (Outlet air temperature)

CN4F Float switch input

CN24-1 1st heater control

CN27(CN24-2)

Damper control (2nd heater control)

CNMF No function

CN60 LEV Control

CN7V LEV Control

CNEC1 Connect to the indoor controller board

CNEC2 Operation Signal output

PAC-AH001-1


8.4. Dipswitch setting8.4.1. Discharge Air Control (Factory Setting)8.3. Dipswitch setting1. Discharge Air Control (Factory Setting)

(1) SW1 - Function Setting

Switch

Position Function

Switch Setting

ON OFF

1 Return Air Sensing

Location Remote Controller TH21

2 TH24 Temperature

Offset a = 0 °F

ON OFF

2

3

a = 1 °F

ON OFF

2

3

a = 2 °F

ON OFF

2

3

a = 3 °F

ON OFF

2

3

3

4 Not Available N/A N/A

5 Remote display Thermostat ON signal Fan Output




9 Auto restart after

power failure Enabled Disabled

10 Power start/stop Enabled Disabled

Factory Setting in Gray

Dip switch settings must be made while the unit is stopped. There is no need to power cycle the unit.


Switch

Position Function

Switch Setting

ON OFF

1 Heat Pump or

Cooling Only Cooling Only Heat Pump



4 Fan Operation

During Defrost ON During Defrost OFF During Defrost


6 Capacity Code Up Capacity Code Up Capacity Code not Up


8 TH21 value for

Thermo ON/OFF in

Heating mode

TH21 Value for Thermo ON/OFF in Heating Mode

SW3-8 SW3-9 Thermo ON Thermo OFF

OFF OFF 68 °F [20 °C] 70 °F [21 °C]

ON OFF N/A N/A

OFF ON 48 °F [9 °C] 50 °F [10 °C]

ON ON 57 °F [14 °C] 59 °F [15 °C]

9




PAC-AH001-1



Switch

Position Function

Switch Setting

ON OFF

1

Model Code

(Not Available)

N/A N/A

2 N/A N/A

3 N/A N/A

4 N/A N/A

5 N/A N/A


7 Control Method

Selection Discharge Air Control Return Air Control 8





8.4.2. Return Air Control (Factory Setting)

Position ON OFF

1

Model Code (Not Available)

N/A N/A

2 N/A N/A

3 N/A N/A

4 N/A N/A

5 N/A N/A


7 Control Method Selection Discharge Air Control Return Air Control

8





2. Return Air Control (Factory Setting (1) SW1 - Function Setting

Switch Position Function

Switch Setting

ON OFF

1 Return Air Sensing Location

Remote Controller TH21

2 Filter clogging detection

Available Unavailable

3 Filter Life 2500 hours 100 hours

4 Outdoor air intake Enabled Disabled

5 Remote display Thermostat ON signal Fan output

6 Humidifier Operation

During heating mode During heating operation

7 Fan Speed Low Stop

8 Fan speed at heating Thermo-

OFF

Preset fan speed Follows the setting of SW1-7

9 Auto restart after power failure

Enabled Disabled

10 Power start/stop Enabled Disabled





Switch Setting

ON OFF

1 Heat Pump or Cooling Only

Cooling Only Heat Pump

2 Heater output Enable Disable

3 Monitor discharge air temperature with TH24

Enable Disable

4 Heater control indefrost or error

Heater ON Heater OFF




8 Heating 4-deg up Disabled Enabled


PAC-AH001-1




Switch Setting

ON OFF

1 Heat Pump or Cooling Only

Cooling Only Heat Pump

2 Heater output Enable Disable

3 Monitor discharge air temperature with TH24

Enable Disable

4 Heater control in defrost or error

Heater ON Heater OFF




8 Heating 4-deg up Disabled Enabled




Dip switch settings must be made while the unit is stopped.



Switch Setting

ON OFF

1

Model Code (Not Available)

N/A N/A

2 N/A N/A

3 N/A N/A

4 N/A N/A

5 N/A N/A


7 Control Method Selection Discharge Air Control Return Air Control

8





PAC-AH001-1


8.4.3. SW2 – Capacity Code SettingDip switch settings must be made while the unit is stopped. There is no need to power cycle the unit.

LEV AssemblyModel

Capacity CodeSetting

Design CapacityRange Cooling

Settingswitches

[Ton] [Btu/h] SW2 SW3-6

PAC-LV24AC-1

0.5 4,800-6,000n

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

.5 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

0.7 6,000-8,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

.7 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

1.0 9,600-12,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

1 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

1.25 12,000-15,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

1.25 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

1.5 15,000-18,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

.5 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

2.0 18,000-24,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

2 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

PAC-LV48AC-1

2.25 24,000-27,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

2.25 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

10

10

10

10

10

10

10

10

10

10

10

10

10

10

2.5 27,000-30,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

.5 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

10

3.0 30,000-36,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

3 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

10

4.0 36,000-48,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

4 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

10

PAC-LV60AC-1

4.5 48,000-54,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

.5 ON ON

OFF OFF

10

10

10

10

10

10

10

10

10

10

5.0 54,000-60,000

Ton

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

0.5 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

0.7 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

1 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

1.25 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

1.5 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

2 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

2.25 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

2.5 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

3 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

4 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

4.5 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

5 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

6 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

8 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

10 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

12 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

14 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

16 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

18 ON ON

OFF OFF

1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

20 ON ON

OFF OFF

10

SW2

10

SW3

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

PAC-LV96AC-1

6.0 60,000-72,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

6 ON ON

OFF OFF

10

10

10

10

10

10

10

10

8.0 72,000-96,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

8 ON ON

OFF OFF

10

10

10

10

10

10

10

PAC-LV120AC-1 10.0 96,000-120,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

10 ON ON

OFF OFF

10

10

10

10

10

10

PAC-LV96AC-1 (x2)

12.0 120,000-144,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

12 ON ON

OFF OFF

10

10

10

10

10

14.0 144,000-168,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

14 ON ON

OFF OFF

10

10

10

10

PAC-AH001-1


LEV AssemblyModel

Capacity CodeSetting

Design CapacityRange Cooling

Settingswitches

[Ton] [Btu/h] SW2 SW3-6

16.0 168,000-192,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

16 ON ON

OFF OFF

10

10

10PAC-LV120AC-1 (x2)

18.0 192,000-216,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

18 ON ON

OFF OFF

10

1020.0 216,000-240,000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9

20 ON ON

OFF OFF

10

8.4.4. SW5 – Power voltage Setting (Factory Setting)Switch

Position Function

Switch Setting

ON OFF

Power voltage

selection 240V(230V) 220V(208V)


Dipswitch settings must be operated with the main power turned OFF.

When the power supply is 230 volts, set SW5 to 240V side.


8.4.5. SWA – Controller Type Setting (Factory Setting)

PAC-LV96AC-1

(x2)

12.0 120,000-144,000

14.0 144,000-168,000

16.0 168,000-192,000

PAC-LV96AC-1

(x2)

18.0 192,000-216,000

20.0 216,000-240,000

4. SW5 – Power voltage Setting (Factory Setting)

Switch

Position Function

Switch Setting

ON OFF

Power voltage

selection 240V(230V) 220V(208V)


Dipswitch settings must be operated with the main power turned OFF.



Switch

Position Function

Switch Setting

ON

1 City Multi Controller 1

2 3rd

Party Controller (Type1) 2

3 3rd

Party Controller (Type2) 3



6. SWC - Function Setting (Factory Setting)

SWC has no use.

7. SW11, SW12, SW14 - Address Setting (Factory Setting)

(1) SW11, SW12 (Rotary switch)

Factory Setting

Address switch settings must be made while the unit is stopped and the remote controller is stopped.

1 2 3 4 5 6

ON

OFF

1 2 3 4 5 6 7 8 9

ON

OFF

10

1 2 3 4 5 6

ON

OFF

1 2 3 4 5 6 7 8 9

ON

OFF

10

1 2 3 4 5 6

ON

OFF

1 2 3 4 5 6 7 8 9

ON

OFF

10

1 2 3 4 5 6

ON

OFF

1 2 3 4 5 6 7 8 9

ON

OFF

10

1 2 3 4 5 6

ON

OFF

1 2 3 4 5 6 7 8 9

ON

OFF

10


8.4.6. SWC - Function Setting (Factory Setting)SWC has no use.

PAC-AH001-1


8.4.7. SW11, SW12, SW14 - Address Setting (Factory Setting)(1) SW11, SW12 (Rotary switch)

Factory Setting


(2) SW14 (Rotary switch)

This switch is used when the unit connected to an R2 series of outdoor unit.

Factory Setting


PAC-AH001-1



Please be sure to put the contact address/telephone number on this manual beforehanding it to the customer.

MITSUBISHI ELECTRIC US, INC.www.mitsubishielectric-usa.com

Toll Free: 800-433-4822

MEUS DOC#MD-1624-K002 Ver02February 2018Specifications are subject to change without notice. © 2018 Mitsubishi Electric US, Inc.

http://www.mitsubishielectric-usa.com

Documents

PAC-AH001-1 - MyLinkDrive · 2018. 2. 28. · PAC-AH001-1 SERVICE MANUAL. Table of Contents 1. ... • After completing the service work, check for a refrigerant leak. – If leaked