Trane HUV and · PDF fileTrane HUV and VUV Classroom Unit ... Power Supply 24 VAC ... The face and bypass option con-sist of an actuator, damper blade and 2-position water valve (op-tion)

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Trane HUV and VUVClassroom Unit Ventilators

Horizontal and VerticalClassroom Unit Ventilators

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Introduction

The vertical unit ventilator is a floor mounted air-conditioner. The unit is mounted flush to the wall with the fresh air opening in the back or top inlet, and the return opening in the front or back. Front panels are retained by Allen wrench operated tamper proof camlocks which open with a 180-degree rotation. The unit is construct-ed of 14 and 16-gauge zinc coated steel. Each unit contains two end pockets which are easily accessible and provide field hook-up to piping and controls. A pipe chase is provided across the back of the unit for field in-stallation of crossover piping. The unit fan board is made of 14-gauge corrosive resistant galvanized metal. All cooling specified units contain a non-corrosive, positively sloped drain pan that is removable for cleaning pur-poses. Leveling legs are provided at both ends of the unit to facilitate alignment and leveling. Feature high-lights include:

• TracerTM ZN520 controls for automation of the mechanical system

• Blow thru supply-air design for freeze avoidance

• Varying coil combinations to fit a variety of applications

• Factory installed piping

• ASHRAE Cycle II

• ARI 840 certification for ventilation control

• Maintenance accessibility for coil fin cleaning

• Factory commissioning of DDC controls

• Field reversible drain pan

• Quality construction

• Indoor air quality features

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Contents

IntroductionFeatures and Benefits

Options

Coil Types

Piping and Valves

Controls

Application ConsiderationsSelection Procedure

How to Select

Glycol Adjustment Factors

Model Number Description

General DataPerformance Data

Sound Performance DataA-Coil/D-Coil DataH-Coil DataX-Coil DataDK, R1, R2 Cooling Coil DataFA, R1, R2 Heating Coil DataDX Coil DataElectric Heat Coil DataK1, K2 Steam Coil DataDK, FK Steam Coil DataElectrical Data

Control WiringDimensions and WeightsAccessories

SensorsUnit Accessories

Mechanical Specifications

2

448

1523354545495159676768747576777880818384

8697

124124126128

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Features andBenefits

ConfigurationThe classroom unit ventilator is available in both a

• horizontal (ceiling mount)

• vertical (floor mount)

configuration. The units range from 750 cfm to 2000 cfm for the horizontal configuration, and from 750 cfm to 1500 cfm for the vertical configuration.

CabinetThe units are constructed of 14- and 16-gauge zinc coated steel. All steel surfaces are cleaned, phos-phatized, rinsed and dried before application of final finish paint. The paint is applied by an electro-static powder spray system, mini-mum thickness of 1.5 mil which results in an appliance grade fin-ish.

Front PanelsThe front panels are retained by Allen wrench operated tamper-proof camlocks which open with a 180-degree rotation. The vertical front panel is constructed of either 14 or 16 gauge material dependent upon model option selected. See Figure 1 for front panel with camlock access.

End PocketsThe roomy 13 1/2-inch wide x 30-inch high x 15 1/4-inch depth end pockets provide easy field installa-tion of valves, piping, and con-trols. The units have a large pipe access opening in both end pock-ets and large knockouts for piping and electrical connections. All electrical connections are made in the left-hand end pocket, with ex-ception of units equipped with the electric heating coil option. See Figure 2 for end pocket sizing.

Drain PanThe drain pan is positively sloped in all planes to assure proper drainage and help eliminate the risk of microbial growth. To help ensure indoor air quality, the drain pan is insulated on the bottom to help prevent condensate forma-tion. The drain pan can be easily removed for cleaning purposes. The drain pan is field reversible by loosening 2-front screws and tilt-ing.

A drain plug is located on each end of the drain pan for the vertical configuration. The plug is drilled-out during assembly per model number selection See Figure 2 for drain pan.FanboardThe fanboard assembly is acousti-cally designed in a single, rigid as-sembly that includes the fans, fan housing, bearings, fan shaft and motor. The fan motor is mounted on the fanboard. The fanboard is made from 14 gauge galvanized steel to resist corrosion and in-crease strength. The fanboard is removed by extracting 2-screws.

115V MotorThe motor is a single speed per-manent split capacitor with ther-mal overload protection. A multiple tap auto-transformer is wired to the motor to provide dif-ferent speed settings. The motor speed is not affected by damper positions. Standard motors are rated up to 0.25 ESP. High static motors are rated from 0.25 ESP to 0.45 ESP.

Motor bearings are permanently lubricated. Isolation of the motor is provided internally at the union shaft. See Figure 3 for motor disconnect.

Figure 1: Front panel with cam-lock access

Figure 2: Roomy end pocket and drain pan

Figure 3: Motor disconnect

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Sampling Chamber (Option)A sampling chamber is provided for housing the room air sensor whenever a unit mounted sensor is specified for TUC or Tracer ZN520 controls. The sampling chamber is placed below the air-coil where room air is continuous-ly drawn into the chamber before being tempered by the coil. This ensures an accurate response to temperature changes in the room. See Figure 4 for sampling chamber.

FilterStandard units are equipped with a single 1-inch thick filter that is ac-cessible without removal of the unit front panel. Units containing dynamic air require front panel re-moval for filter access. See Figure 5 for vertical filter removal. Fil-ter options include throw-away and permanent renewable.

OA/RA DampersTrane unit ventilators are equipped with dual blade type mixing dampers to ensure proper modulation and mixing of return and outdoor air designed in accor-dance to ARI 840. A splitter is placed between the damper blades to separate the fresh-air and return-air compartments to prevent blow-thru.

An ultra low-leak damper seal is applied on all vertical unit configu-rations. The seal consist of a medi-um density, closed-cell neoprene material. The seal is fixed and not part of the damper assembly. The outside-air damper closes into the closed cell neoprene material, providing a positive pressure seal. See Figure 6 for OA/RA damp-er with splitter and seal.

OA/RA Actuator(Option)The OA/RA actuator provides true spring return operation for posi-tive close-off of the OA/RA damp-ers. The spring return system of the actuator closes the outside damper if power is lost to the building. When ordered with fac-tory mounted controls, the actua-tor is 3-point floating. A 2 to 10 VDC actuator is also available when other than Trane controls is required. Table 1 for technical data of the OA/RA actuator. See Page 7 for percentage of ven-tilation on each system.

Table 1: Technical data for OA/RA actuator

Power Supply 24 VAC ± 20% 50/60 HZ

24 VAC ± 10%

Power Consumption

Running: 2.5 WHolding: 1 W

Tranformer Sizing

5 VA (class 2-power source)

Overload Protection

Electronic throughout 0 to 95-degree rotation

Control Signal 2 to 10 VDC3-point floating with Trane controls

Angle of Rotation

Maximum 95-degreeAdjustable with mechanical stop

Torque 35-inch/lb

Direction of Rotation

Spring return reversible with CW/CCW mounting

Position Indication

Visual indicator, 0 to 95-degrees

Run Time(nominal)

90-second constant (independent of load)

Noise Level Running: 30 dB


Figure 4: Sampling chamber

Figure 5: Vertical filter removal

Figure 6: OA/RA splitter and seal

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Face and Bypass(Option)The face and bypass option con-sist of an actuator, damper blade and 2-position water valve (op-tion).

During face and bypass mode, the damper swings to an upward posi-tion, closing off any air travel through the coil. The damper blade is tightly sealed to eliminate heat pickup while in the bypass mode.

A two-position valve control op-tion further enhances this system by closing off all water flow to the coil during the bypass position. This provides a cost savings dur-ing the bypass operation for both 2-pipe and 4-pipe hydronic sys-tems. 2-pipe main steam systems also utilize the face and bypass op-tion with an isolation valve. By uti-lizing the face and bypass option, variable pumping is made possi-ble. See Figure 7 for horizontal unit with face and bypass.

Face and Bypass Actuator (option)The face and bypass damper actu-ator incorporates a direct couple design for both the horizontal and the vertical configurations. See Figures 8 and 9 for mounting locations of the actuator.

The actuator is provided with elec-tronic protection against overload. It does not contain, nor require a limit switch. When reaching the damper end position, the actuator automatically stops. The gears can be manually disengaged with a button on the actuator housing. See Table 2 for technical data of the face and bypass actua-tor.

Table 2: Technical data for face & bypass actuator

Power Supply 24 VAC ± 20% 50/60 HZ

24 VAC ± 10%

Power Consumption

2 W

Tranformer Sizing

3 VA (class 2-power source)

Angle of Rotation

Maximum 95-degreeAdjustable with mechanical stop

Torque 35-inch/lb

Direction of Rotation

Reversible with switch L/R

Position Indication

Clip-on indicator

Run Time(nominal)

90-second constant

Manual Override

External push button

Noise Level Less than 35 dB

Control Signal 3-point floating


Figure 7: Horizontal with face and bypass

Figure 8: Actuator mounting locations (vertical)

Figure 9: Actuator mounting locations (horizontal)

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away from the cold outside air stream, and also mixes this cold air with return air to provide a uni-form coil inlet temperature. An ad-ditional benefit in freeze avoidance is the heat of the fan, motor, and return air are mixed into the air stream before entering the coil, instead of after the coil.

This blow-thru design also acts as a noise attenuator. The coil place-ment near the discharge air allows fan noise absorption which re-stricts sound from the unit’s fan to

pass freely into the conditioned space.

Draw-thru DesignA typical draw-thru design allows little mixing of the return and out-side-air stream while locating the coil very close to the outside air in-let. This process creates cold spots on the coil that could lead to coil freeze-up. See Table 3 for mixed-air temperature at vari-ous outside-air conditions.


Blow-thru DesignA blow-thru unit ventilator design places the blowers below the coil to aid in the elimination of debris (coins, paper clips, etc.) from fall-ing into the spinning fan. This safety consideration helps prevent personal injury, noise or equip-ment damage.

Another key advantage in the blow-thru design is the protection against coil freezing. The blow-thru design keeps the coil farther

Trane - Blow-thru Design Competition - Draw-thru Design

Table 3: Mixed-air temperature at various outside air (OA) conditionsOutside Air

TemperaturePercent Outside Air

16-2/3 20 25 33-1/2 50-10 Degree 56.80 54.00 50.00 43.40 30.000 Degree 58.50 56.00 52.50 46.80 35.00

10 Degree 60.10 58.00 55.00 50.00 40.0020 Degree 61.90 60.00 57.60 53.40 45.00

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Varying Coil CombinationsBy varying coil combinations, room conditions can be met using almost any cooling or heating source. If room requirements change, a higher capacity coil can be interchanged without replacing the installed unit.

All 2-pipe and 4-piping cooling coil assemblies come complete with a deep insulated drain pan. A drain pan is not provided for a heating only system for units not contain-ing the face and bypass option.

See Table 4 for coil types. In a 4-pipe or couple coil situation, main implys COOLING. Therefore, the main coil will contain cooling, and the auxiliary coil will contain heating. All main coils have oppo-

Coils

site supply/return end connections from the auxiliary coil.In a 2-pipe coil situation, the main coil may be either heating or cool-ing.

A manual air-vent is provided on all hydronic coils. The vent allows air to be purged from the coil dur-ing start-up, or maintenance. The air vent is located on the return header of all hydronic coil sys-tems.

Similarly, a drain plug is located at the bottom of the MAIN coil return header. See Figure 10 for typi-cal header assembly.

Table 4: Coil TypesSingle Coil Module Coupled Coil Module

Main/Auxiliary Coils are opposite End Connections

AA, AB, AC, AD, AECombination hot water/cold water coil

DA, DC, DD, DECold water/preheat hot water coil

H1, H2, H3, H4, H5, H6Hot water ONLY coil

DKCold water/preheat steam coil

K1, K2Steam ONLY coil

X3, X4, X6Cold water/preheat electric heat coil

E4, E6, E7, E9Electric heat ONLY coil

FARefrigeration/preheat hot water coil

F0Refrigeration ONLY coil

FKRefrigeration/preheat steam coil

F3, F4, F6Refrigeration/preheat electric heat coil

R1, R2Cold water/reheat hot water coil

Figure 10: Typical header assembly

Drain

Air Vent

Plug

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Hydronic Main Coils

Hydronic Main CoilsAll hydronic coils are wavy plate finned and available in varied ca-pacities (Table 5 and 6 listed be-low). The coils are hydrostatically tested at 350 PSI.

Piping packages for the main coil assembly are always supplied as a 3/4-inch package. See Figure 11 for main coil header sizing for 2-pipe and 4-pipe systems. Left hand configuration shown.

Table 5: Single coil (2-pipe) dataCoil

DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Cooling (main)

Rows Heating (main)

Face&

Bypass

HW/CWMain

ChangeoverCoil

AA 12 2 2

H&VAB 16 2 2

AC 12 3 3

AD 12 4 4

AE 16 4 4

HW ONLYMainCoil

H1 12 0 1

H&VH2 14 0 1

H3 16 0 1

H4 12 0 2

H5 14 0 2

H6 16 0 2

Figure 11: Main coil header sizing for 2-pipe and 4-pipe systems. (Left hand configuration shown.)

Indicates air flow

07

5-2

00

07

5-2

00

Table 6: Coupled coil (4-pipe) dataCoil

DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Cooling (main)

Face&

Bypass

CW-MainHW-Preheat

Auxiliary Coil

DA

075-200

12 2

H&VDC 16 2

DD 12 3

DE 16 3

CW-MainE-Heat-Aux.

CoilX3-X6

075-100 12 3Not

Available125 16 2

150 12 3

200 16 3

CW-MainSteam-Aux.

Coil

DK 075-150 12 3 NotAvailableDK 200 12 3

CW-MainHW (reheat)-

Aux. Coil

R1 075-200 12 3 NotAvailableR2 075-200 16 3

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Hydronic Auxiliary Coils

Hydronic Auxiliary CoilsAll hydronic coils are wavy plate finned and available in varied ca-pacities (Table 7 and 8 listed be-low). The coils are hydrostatically tested at 350 PSI.

A manual air vent is installed on the return header. All auxiliary coils have opposite end supply/re-turn connections from the main coil.

See Figure 12 for auxiliary PREHEAT coil header sizing, and Figure 13 for auxiliary RE-HEAT coil header sizing.

Table 7: Auxiliary preheat coil dataCoil

DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Heating (Aux.)

Face&

Bypass

CW-MainHW-Preheat

Aux. Coil

DA

075-200

12

1 H&VDC 16

DD 12

DE 16

HW ONLYMainCoil FA

075-15012

1Not

Available200 14

Figure 13: Auxiliary REHEAT coil header sizing for 2-pipe and 4-pipe systems. Right hand configuration shown.

Indicates air flow

Table 8: Auxiliary reheat coil dataCoil

DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Heating (Aux.)

Face&

Bypass

CW-MainHW (reheat)-

Aux. Coil

R1 075-200 12 1 HorizONLYR2 075-200 16 1

Figure 12: Auxiliary PREHEAT coil header sizing for 4-pipe systems. (Right hand configuration shown.)

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Steam Main Coils

Steam Main Coils(K1 and K2 coils)The steam heating coil is a 1-row design, tube-in-tube distributing coil. Supply and return connec-tions are on the same side, and are terminated with a 1-inch female pipe connection.

For steam only coils, K1 and K2, Trane provides a face and bypass damper selection. When factory mounted Trane controls are se-lected, an optional 2-position iso-lation valve may be used to close off flow to the steam coil when the damper is in the full bypass posi-tion.

For field installed controls, Trane provides a face and bypass damp-er ONLY. See Figure 14 for main coil header sizing for 2-pipe and 4-pipe systems. Right hand configuration shown.

Figure 14: Main coil header sizing for 2-pipe and 4-pipe systems. (Right hand configuration shown.)

Indicates air flow


DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Heating (main)

Face&

Bypass

Steam only-Main Coil

K1 075-150 8 1

H&VK2 075,125 10 1

K2 100 13 1

K2 150-200 14 1

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Steam Auxiliary Coils

Steam Auxiliary Coils(DK and FK)The steam auxiliary heating coil is a 1-row design, tube-in-tube dis-tributing coil. Supply and return connections are on the opposite end from the main coil. The con-nections are terminated with a 1-inch female pipe connection.

The modulating piping valve (op-tion) is shipped loose and field in-stalled.

Face and bypass in not available when ordering a auxiliary steam coil option because of physical size requirements. See Figure 15 for auxiliary steam coil header sizing.

Table 10: Auxiliary steam coil dataCoil

DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Heating (Aux.)

Face&

Bypass

CW-MainSteam

(preheat)Aux. Coil

DK075,125 11

1 NotAvailable

100 12

150-200 14

DX-MainSteam

(preheat)Aux. Coil

FK075,125

11

1Not

Available100 12

150-200 14

Figure 15: Auxiliary steam coil header sizing. (Right hand configuration shown.)

Indicates air flow

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Electric Heat Coils

Electric CoilsElectric preheat coils consist of special resistance elements insert-ed in the coils fin surface for max-imum element life, heat transfer and safety. Units include a high temperature cut-out with a contin-uous sensing element. This device interrupts electrical power when-ever excessive temperatures are sensed along the leaving air side of the coil. Electric heat units in-clude a panel interlock switch to disconnect power to the heating element when the access panel is opened. Power connection for electric heat is made in the right hand end pocket.

Note: A circuit breaker is also available through model number selection.

Note: Face and bypass is not avail-able when ordering the electric heat option. Coil options: X3, X4, X6, F3, F4, F6, E-4, E6, E7, E9.

See Figure 16 for main coil el-ement location, and Figure 17 for auxiliary coil element loca-tion.

Figure 17: Auxiliary coil element location. (Left hand configuration shown.)

Indicates air flow

Figure 16: Main coil element location. (Right hand configuration shown.)

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Direct Expansion Main Coils

Direct Expansion Main CoilsAll refrigerant coils (Table 11 and 12) include a factory mounted thermal expansion valve and equalizing tube. The direct expan-sion (DX) configuration is avail-able in a left hand cooling configuration ONLY.

Trane also provides a 50 VA trans-former, time delay relay, a frost detection sensor, and a selectable outside air sensor on all DX unit configurations. See Figure 18 for main coil header sizing.


DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Cooling (Main)

Face&

Bypass

DX-MainE-heat

(preheat)Aux. Coil

F3-F6075-150 12

1 NotAvailable200 14

Figure 18: Main DX coil header sizing. (Only available with left hand configuration)Indicates air flow


DescriptionCoilType

UnitSize

Fins per inch FPI

Rows Cooling (Main)

Face&

Bypass

DX-Main Coil FO

075-150 122 Not

Available200 14

DX-MainHW

(preheat)Aux. Coil

FA075-150

12

2Not

Available200 14

Thermal Expansion ValveAll refrigeration coils (F0, FA, F3-F6) come with a thermal expansion valve flow metering device. This thermal expansion valve (TXV) precise-ly meters refrigerant flow through the coil and allows the unit to operate at an entering air temperature from 40 F to 90 F.

Unlike cap-tube assemblies, the expansion valve device allows the exact amount of refrigerant required to meet the coil load demands. This pre-cise metering by the TXV increases the efficiency of the unit. See Figure 19 for expansion valve.

Figure 19: Expansion valve

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Coil Control ValveChilled water, hot water and steam coils accommodate control valves when selecting options 8,9,G,H,Q,R,T,U,V,W and Z for DIGITS 16 and 17. The control valves are available as a three-point modu-lating arrangement. The control valve option includes the following:

Threaded connections on both the 2-way and 3-way configurations;

1/2-and 3/4-inch nominal sizing for both the 2-way and 3-way configurations;

Valve motor leads to include an 18-gauge wire, 6-inches in length, with internal strain relief;

2 1/2-inch clearance above cover required for cover removal

Table 13: Control valve pressure drop

2-Way or 3-WayWater Valves

2GPM

3GPM

4GPM

5GPM

6GPM

7GPM

8GPM

9GPM

10GPM

11GPM

12GPM

13GPM

14GPM

15GPM

16GPM

17GPM

18GPM

19GPM

20GPM

1/2" - 1.8 Cv 2.85(ft)

6.42(ft)

11.41(ft)

17.82(ft)

25.67(ft)

34.94(ft)

1/2" - 4.6 Cv 2.73(ft)

3.93(ft)

5.35(ft)

6.99(ft)

8.84(ft)

10.92(ft)

13.21(ft)

15.72(ft)

18.45(ft)

21.4(ft)

24.56(ft)

27.95(ft)

3/4" - 7.3 Cv 3.51(ft)

4.33(ft)

5.25(ft)

6.24(ft)

7.33(ft)

8.50(ft)

9.75(ft)

11.10(ft)

12.53(ft)

14.04(ft)

15.65(ft)

17.34(ft)

PipingCoil Valve Control

Actuator

Control 3-Point ModulatingElectrical 24 VAC, 60 HZStroke 110 secondsAmbient 140 F at 95% relative

humidity

2-Way Control Valve (3-Point Modulating)1/2-inch FNPT; 1.8, 4.6 Cv (Digit 16 = 8,9,W,G and 17 = W,G)

Valve Body

Connections 1/2-inch threadedStatic Pressure 400 PSIClose-offPressure

1.8 Cv = 80 psig4.6 Cv = 45 psig

Temperature Water 200 F Max.

Actuator


humidity

2-Way Control Valve (3-Point Modulating)3/4-inch FNPT; 7.3 Cv (Digit 16/17 = H)

Valve Body


75 psig


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Actuator


humidity

2-Way Control Valve (3-Point Modulating)1/2 and 3/4-inch FNPT; 1.8, 4.6 and 7.3 Cv (Digit 16 = T,U,V)

Valve Body

Connections 1/2 or 3/4-inch threaded

Static Pressure 400 PSIClose-offPressure

1.8 Cv = 345 psig4.6 Cv = 216 psig7.3 Cv = 138 psig

Actuator


humidity

3-Way Control Valve (3-Point Modulating)3/4-inch FNPT; 7.3 Cv (Digit 16/17 = R)

Valve Body


75 psig


Actuator


humidity

3-Way Control Valve (3-Point Modulating)1/2-inch FNPT; 1.8, 4.6 Cv (Digit 16 = Q,X,Y,Z and 17 = Q,Z)

Valve Body


1.8 Cv = 80 psig4.6 Cv = 45 psig


Note: Allow 2-1/2-inch above the steam valve for removal of the valve cover

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Face and Bypass Coil Isolation ValveClassroom unit ventilators that incorporate the face and bypass option with a coil isolation valve (options 3 and 7) for DIGIT 16, are outfitted with a 2-position isolation control valve.

The operation of the powered motor drives the gear assembly, and push-es down on the valve stem against the force of the valve return spring. When power is removed from the motor, the valve retracts and allows the valve spring to move the valve stem up in the direction of its normal position.

The valves motor is removable from the assembly without detaching the piping from the coil. The motor simply screws to the top of the brass body allowing ease of replacement during a service situation. See Fig-ure 20 for face and bypass coil isolation valve.


Figure 20: Face and bypass coil isolation valve

Actuator

Control 2-positionElectrical 24 VAC, 60 HZStroke TimeON/OFF

10 seconds ON5 seconds OFF

Ambient 35 to 122 F, non condensing

2-Way Isolation Valve (2-position)1/2-/3/4-/1-sweat; 1.8 Cv; Htg-NO; Changeover & Clg-NC (Digit 16 = 3,7)

Valve Body

Connections 1/2-sweatOperating Pressure

20.2 lb

Close-offPressure

1/2" = 30 psig3/4" = 15 psig1" = 9 psig

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PipingVUV Stroketime Value

Stroketime ValuesTables 14 and 15 should be used in identifying unit ventilator valve stroketime values for the vertical and hor-izontal units.

Table 14: Vertical unit ventilator (VUV) stroketime value

DIGIT(S) STROKE TIME

ZN520

VALVE 1 VALVE 2TUC

1, 2, 3 12, 13 15 16 17 HEAT byte126 COOL byte 125 byte 132 byte 133VUV FA A - H, Q, R, T - Y 8 1 105 205 0 NA - DX 105 NA - DXVUV FA A - H, Q, R, T - Y 9 1 105 251 0 NA - DX 105 NA - DXVUV FA A - H, Q, R, T - Y X 1 105 254 0 NA - DX 105 NA - DXVUV FA A - H, Q, R, T - Y Y 1 105 208 0 NA - DX 105 NA - DXVUV AA - AE A - H, Q, R, T - Y W 0 105 183 105 78 105 NAVUV AA - AE A - H, Q, R, T - Y G 0 105 149 105 123 105 NAVUV AA - AE A - H, Q, R, T - Y Z 0 105 188 105 126 105 NAVUV AA - AE A - H, Q, R, T - Y Q 0 105 148 105 80 105 NAVUV AA - AE A - H, Q, R, T - Y H 0 45 187 45 121 45 NAVUV AA - AE A - H, Q, R, T - Y R 0 45 149 45 80 45 NAVUV H1 - H6 A - H, Q, R, T - Y W 0 105 183 0 NA 105 NAVUV H1 - H6 A - H, Q, R, T - Y G 0 105 149 0 NA 105 NAVUV H1 - H6 A - H, Q, R, T - Y Z 0 105 188 0 NA 105 NAVUV H1 - H6 A - H, Q, R, T - Y Q 0 105 148 0 NA 105 NAVUV H1 - H6 A - H, Q, R, T - Y H 0 45 187 0 NA 45 NAVUV H1 - H6 A - H, Q, R, T - Y R 0 45 149 0 NA 45 NAVUV DA - DE A - H, Q, R, T - Y 8 105 205 NA 105VUV DA - DE A - H, Q, R, T - Y 9 105 251 NA 105VUV DA - DE A - H, Q, R, T - Y X 105 254 NA 105VUV DA - DE A - H, Q, R, T - Y Y 105 208 NA 105VUV DA - DE A - H, Q, R, T - Y W 105 78 105 NAVUV DA - DE A - H, Q, R, T - Y G 105 123 105 NAVUV DA - DE A - H, Q, R, T - Y Z 105 126 105 NAVUV DA - DE A - H, Q, R, T - Y Q 105 80 105 NAVUV DA - DE A - H, Q, R, T - Y H 45 121 45 NAVUV DA - DE A - H, Q, R, T - Y R 45 80 45 NAVUV DK A - H, Q, R, T - Y T 85 16 NA 85VUV DK A - H, Q, R, T - Y U 85 24 NA 85VUV DK A - H, Q, R, T - Y V 85 16 NA 85VUV DK A - H, Q, R, T - Y W 105 78 105 NAVUV DK A - H, Q, R, T - Y G 105 123 105 NAVUV DK A - H, Q, R, T - Y Z 105 126 105 NAVUV DK A - H, Q, R, T - Y Q 105 80 105 NAVUV DK A - H, Q, R, T - Y H 45 121 45 NAVUV DK A - H, Q, R, T - Y R 45 80 45 NAVUV R1, R2 A - H, Q, R, T - Y W 105 205 NA 105VUV R1, R2 A - H, Q, R, T - Y G 105 251 NA 105VUV R1, R2 A - H, Q, R, T - Y Z 105 254 NA 105VUV R1, R2 A - H, Q, R, T - Y Q 105 208 NA 105VUV R1, R2 A - H, Q, R, T - Y W 105 78 105 NAVUV R1, R2 A - H, Q, R, T - Y G 105 123 105 NAVUV R1, R2 A - H, Q, R, T - Y Z 105 126 105 NAVUV R1, R2 A - H, Q, R, T - Y Q 105 80 105 NAVUV R1, R2 A - H, Q, R, T - Y H 45 121 45 NAVUV R1, R2 A - H, Q, R, T - Y R 45 80 45 NAVUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 W NA - ELC NA - ELC 105 78 105 NAVUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 G NA - ELC NA - ELC 105 123 105 NAVUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Z NA - ELC NA - ELC 105 126 105 NAVUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Q NA - ELC NA - ELC 105 80 105 NAVUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 H NA - ELC NA - ELC 45 121 45 NAVUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 R NA - ELC NA - ELC 45 80 45 NA

UV-PRC001-EN 19

PipingHUV Stroketime Value

Table 15: Horizontal unit ventilator (HUV) stroketime value

DIGIT(S) STROKE TIME

ZN520

VALVE 1 VALVE 2TUC

1, 2, 3 12, 13 15 16 17 HEAT byte126 COOL byte 125 byte 132 byte 133HUV FA A - H, Q, R, T - Y 8 1 105 205 0 NA - DX 105 NA - DXHUV FA A - H, Q, R, T - Y 9 1 105 251 0 NA - DX 105 NA - DXHUV FA A - H, Q, R, T - Y X 1 105 254 0 NA - DX 105 NA - DXHUV FA A - H, Q, R, T - Y Y 1 105 208 0 NA - DX 105 NA - DXHUV AA - AE A - H, Q, R, T - Y W 0 105 183 105 78 105 NAHUV AA - AE A - H, Q, R, T - Y G 0 105 149 105 123 105 NAHUV AA - AE A - H, Q, R, T - Y Z 0 105 188 105 126 105 NAHUV AA - AE A - H, Q, R, T - Y Q 0 105 148 105 80 105 NAHUV AA - AE A - H, Q, R, T - Y H 0 45 187 45 121 45 NAHUV AA - AE A - H, Q, R, T - Y R 0 45 149 45 80 45 NAHUV H1 - H6 A - H, Q, R, T - Y W 0 105 183 0 NA 105 NAHUV H1 - H6 A - H, Q, R, T - Y G 0 105 149 0 NA 105 NAHUV H1 - H6 A - H, Q, R, T - Y Z 0 105 188 0 NA 105 NAHUV H1 - H6 A - H, Q, R, T - Y Q 0 105 148 0 NA 105 NAHUV H1 - H6 A - H, Q, R, T - Y H 0 45 187 0 NA 45 NAHUV H1 - H6 A - H, Q, R, T - Y R 0 45 149 0 NA 45 NAHUV DA - DE A - H, Q, R, T - Y 8 105 205 NA 105HUV DA - DE A - H, Q, R, T - Y 9 105 251 NA 105HUV DA - DE A - H, Q, R, T - Y X 105 254 NA 105HUV DA - DE A - H, Q, R, T - Y Y 105 208 NA 105HUV DA - DE A - H, Q, R, T - Y W 105 78 105 NAHUV DA - DE A - H, Q, R, T - Y G 105 123 105 NAHUV DA - DE A - H, Q, R, T - Y Z 105 126 105 NAHUV DA - DE A - H, Q, R, T - Y Q 105 80 105 NAHUV DA - DE A - H, Q, R, T - Y H 45 121 45 NAHUV DA - DE A - H, Q, R, T - Y R 45 80 45 NAHUV DK A - H, Q, R, T - Y T 85 16 NA 85HUV DK A - H, Q, R, T - Y U 85 24 NA 85HUV DK A - H, Q, R, T - Y V 85 16 NA 85HUV DK A - H, Q, R, T - Y W 105 205 105 NAHUV DK A - H, Q, R, T - Y G 105 251 105 NAHUV DK A - H, Q, R, T - Y Z 105 254 105 NAHUV DK A - H, Q, R, T - Y Q 105 208 105 NAHUV DK A - H, Q, R, T - Y H 45 249 45 NAHUV DK A - H, Q, R, T - Y R 45 208 45 NAHUV R1, R2 A - H, Q, R, T - Y W 105 205 NA 105HUV R1, R2 A - H, Q, R, T - Y G 105 251 NA 105HUV R1, R2 A - H, Q, R, T - Y Z 105 254 NA 105HUV R1, R2 A - H, Q, R, T - Y Q 105 208 NA 105HUV R1, R2 A - H, Q, R, T - Y W 105 78 105 NAHUV R1, R2 A - H, Q, R, T - Y G 105 123 105 NAHUV R1, R2 A - H, Q, R, T - Y Z 105 126 105 NAHUV R1, R2 A - H, Q, R, T - Y Q 105 80 105 NAHUV R1, R2 A - H, Q, R, T - Y H 45 121 45 NAHUV R1, R2 A - H, Q, R, T - Y R 45 80 45 NAHUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 W NA - ELC NA - ELC 105 78 105 NAHUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 G NA - ELC NA - ELC 105 123 105 NAHUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Z NA - ELC NA - ELC 105 126 105 NAHUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Q NA - ELC NA - ELC 105 80 105 NAHUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 H NA - ELC NA - ELC 45 121 45 NAHUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 R NA - ELC NA - ELC 45 80 45 NA

20 UV-PRC001-EN

Factory Installed Piping PackagesTrane has the ability to factory mount piping packages to hydronic coil selections when ordering TUC, Tracer ZN520, pneumatic, or end-device controls. (Note: Valves for steam coils are not factory piped.)

Piping packages are available in either 2-way, or 3-way configurations. The 3-point floating valve is piped on the return side of the coil. Piping packages are factory leak tested to 90 psig to ensure joint integrity. (Note: Insulation for the piping packages is field provided and field in-stalled.)

See Figure 21 for typical piping package.

Piping Package Types

PipingFactory Installed Piping

Figure 21: Typical piping package (package D shown)

CBV = Circuit balancing valve (page 21) P/T Port = Pressure/temperature port BV = Bypass balancing valve

UV-PRC001-EN 21

Circuit Setter Manual Balancing ValveFactory installed piping packages that include the circuit balancing valve (OPTION C or D) feature incorporate a circuit balancing valve.

The circuit balancing valve is available in both 1/2-and 3/4-inch (nominal) piping packages. This flow mechanism is a combination of service shut-off, balancing, and flow measuring device. The flow measurement is achieved by means of a fixed geometry venturi-style orifice. Two pres-sure reading schrader ports are provided for system balancing. The memory stop allows return of the stem/ball to its original set position af-ter use as a servicing shut-off device. The balancing valve stem has wrenching flats for normal setting. The valve stem is capable of opera-tion by a 4:1 turn ratio for stem positioning. The balancing valve is de-signed for use at 300 psi up to 250 F. See Figure 22 for circuit setter balancing valve.

Note: The circuit setter is used as a return shut-off valve. It is not available when selecting the 2-position isolation valve option.

PipingFactory Installed Piping

Figure 22: Circuit setter balancing valve

Water Pressure Drops in (feet) for Unit Vent 2-way and 3-way Piping Packages

Table 16: 1.8 Cv rated valves in 1/2" piping packages

Piping Pkg Cv Rating 2 GPM 3 GPM 4 GPM 5 GPM 6 GPM 7 GPM

A Basic Pkg 1.8 3.2 7.1 12.6 19.5 28.0 38.1

C w/ CBV 1.8 5.2 11.7 20.7 32.3 46.4 63.1

D w/ Strainer & CBV 1.8 5.5 12.4 22.0 34.2 49.2 66.8


Piping Pkg Cv Rating 5 GPM 6 GPM 7 GPM 8 GPM 9 GPM 10 GPM 11 GPM 12 GPM 13 GPM 14 GPM

A Basic Pkg 4.6 4.5 6.3 8.5 11.0 13.7 16.8 20.2 23.9 27.9 32.1

C w/ CBV 4.6 17.2 24.7 33.5 43.6 55.1 67.9 - - - -

D w/ Strainer & CBV 4.6 19.1 27.4 37.2 48.5 61.3 75.5 - - - -


Piping Pkg Cv Rating 9 GPM

10 GPM

11 GPM

12 GPM

13 GPM

14 GPM

15 GPM

16 GPM

17 GPM

18 GPM

19 GPM

20 GPM

A Basic Pkg 7.3 4.8 5.9 7.1 8.4 9.8 11.4 13.0 14.8 16.7 18.7 20.8 23.0

C w/ CBV 7.3 16.8 20.7 25.1 29.8 34.9 40.5 46.5 - - - - -

D w/ Strainer & CBV 7.3 21.2 26.2 31.7 37.7 44.2 51.2 58.8 - - - - -

22 UV-PRC001-EN

The crossover piping option is available for:

• 2-pipe heating/cooling changeover coil. DIGIT 12 = A

• 2-pipe heating ONLY coil DIGIT 12 = H

• 4-pipe heating and cooling coil DIGIT 12 = D. For 4-pipe coils, the crossover is facto-ry supplied for the main cooling coil ONLY.

The type M crossover copper is available as either 1-3/8-inch in-side diameter (I.D.) sweat connec-tion or 2-1/8-inch inside diameter (I.D.) sweat connection. A 7/8-inch inside diameter (I.D.) shut-off ball valve is supplied at both the sup-ply and return connections. These connections can be found in either the right or left hand end pocket.

Insulation of the crossover pipes is provided for all applications. The insulation is 3/8-inch thickness.

Expansion compensation between the factory piping package and the crossover piping is achieved using a flex hose. Trane provides the hoses if factory piping package(s) are selected. Expansion compen-sation for the crossover piping must be handled external to the

unit ventilator. See Figure 23 for 2-pipe crossover

piping.

PipingCrossover Piping

Crossover PipingThe selection of crossover piping allows the contractor the ability to install field piping for unit connec-tion prior to receipt of the vertical unit ventilators. The factory in-stalled crossover pipe is located at the back of the unit along the wall. The crossover pipng extends 1-inch beyond the length of the unit on both sides for ease of field con-nection.

Figure 23: 2-pipe crossover piping

Note:

• For dimensional data, see jobsite connection section on Pages 104 and 105 of this catalog.

• Crossover piping is not available with the end device control package.

UV-PRC001-EN 23

Why Trane Controls?Whether involved in a retrofit or in new construction applications, Trane has the control design to fit the sys-tems requirements. The broad range of control packages offered range from a field convertible end-device package, to a complete building automation system solution by incorporating the ICS (Integrated ComfortTM system) design.

The good news is...Trane ICS controls (both ZN520 and TUC), are factory tested and commissioned with Trane application expertise to provide comfort, efficiency, and reliability, as well as, single-source warranty and ser-vice. With Tranes integrated controls, the installed costs are lower because the equipment has turn-key factory controls and every component of the system is optimized to fit with the controller. Trane installs not only the controller, but also the hardware that works intimately with the controller to allow the system to function prop-erly (i.e., piping package, valves, dampers, actuators, etc.). When a classroom unit ventilator with Trane con-trols arrives to the jobsite, it is completely ready for quick installation and operation.

The following chart explains the difference in the control design.

GRAPHIC DESCRIPTION APPLICATION ICS PROTOCOL WHERE TO FIND

No Controls/Field Installed

Unit comes equipped with an auto transformer, fan speed switch and a damper blade only.

In a retrofit market where a non Trane controller has been applied to the building.

No Not Available

End-Device Package

(EDP)

A pre-wired (to a termi-nal strip) control offer-ing of selected control components. The EDP is ready for a field pro-vided controller and temperature sensor.

Retrofit market where single and multiple unit replace-ment occurs.

New building design where field provided controls are specified.

No Not Available Page 24

Tracer ZN520TM Direct Digital Control board designed to pro-vide control of the HVAC equipment, as well as total building management.

Retrofit market where overall system upgrade is specified.

Multi-unit (±100) installation where units are linked by a common twisted pair of wire for a communication link.

Yes Comm5 Page 26

TUC Direct Digital Control board used in an ICS setting to combine HVAC and building management into one comfort system.

Retrofit market where a full building management sys-tem is specified.

Multi-unit (±100) installation where units are linked to a Tracer or Tracer Summit sys-tem to provide complete building management con-trol.

Yes Comm4 Page 30

Pneumatic The mechanical 24V pneumatic contoller provides a mixed air actuator, discharge air sensor and required solenoids and pneu-matic switches.

Retrofit market where exist-ing units or additions to cur-rent pneumatic controls are specified.

No Not Available Page 33

Controls

24 UV-PRC001-EN

ControlsEnd Device Package

End Device PackageThe direct digital control (DDC) end device package is a prewired control offering of selected control components. This allows any con-trol vendor to easily interface with the Trane unit ventilator.

The DDC end device package con-sists of the following components which are factory wired to a termi-nal strip that is located in the left hand end pocket of the unit venti-lator. The unit is shipped from the factory with a UL listing. See Fig-ure 24 for end device controls.

• A NEC Class 2 type trans-former with a primary side of 120 VAC and a secondary side of 24 VAC at 90 VA. The transformer is manually re-settable.

• The fan start/stop relay is a double pole/double throw relay rated for 20-amps at 120/240 VAC.

• A 10-pole terminal block is rated for 20-amps at 300 volts.

• An optional low temperature detection thermostat has a vapor pressure type element strung along the face of the coil. If one inch of this ele-ment falls below 38-degrees F, it is designed to shut the outside air damper and turn off the fan motor. The device is manually reset and has a contact rating of 8.3 FLA at 240 volts.

Once the basic package is select-ed, the following options are also available:

• Control valve(s). 3-point floating ONLY. 2-way and 3-way.

• Face and bypass isolation valve. 2-position, 2-way spring return ONLY.

• Face and bypass damper ac-tuator. 3-point ONLY.

• OA/RA actuator. 3-point float-ing or 2-10 V available.

• Piping package

Figure 24: End device controls

UV-PRC001-EN 25

ControlsEnd Device Package

Valves/Piping PackageControl valves are mounted in a factory piping package to include unions at the coil, p/t ports on the supply and return lines, and shut-off ball valve on the supply and re-turn.

Cooling and heating coil valves are only available as 3-point modulat-ing, non-spring return type valves. Stroke time is approximately 105-seconds for 1/2-inch valves, and 85-seconds for 3/4-inch valves. The ambient temperature range is -30 F to 130 F. The valve body con-nections are NPT threaded, and the maximum pressure is 300 psi. The maximum water temperature is 200 F with a close-off pressure of 133 psi.

Note: See Page 15 in the piping section for more information.

Damper ActuatorsThere are three types of damper actuators used with the End De-vice Package:

• Optional face and bypass ac-tuator is 24-volt, 3-point modulating, non-spring re-turn. In-coming power is 24 VAC with a consumption of 2-watts. Maxmum torque of 35 in/lb and drive time is 180-seconds.

Note:Face and bypass is available on 2-pipe coils ONLY.

An isolation valve is not available with the end de-vice package.

• Optional outside-air/return-air actuator is spring return and takes a 3-point floating signal. A 2-10 VDC option is also available. It provides 25 in/lb of torque with a drive time of 90-seconds. The power consumption is 7 VA with temperature limits of -25 F to 125 F.

Fan Start/Stop RelayThe fan start/stop relay enables the fan start and stop. The fan’s speed is controlled by a unit mounted fan switch. See Figure 25 for end device control package.

Note: Factory installed crossover piping is not available when order-ing end device controls. The low temperature sensor and the cool-ing relay location prohibits cross-over piping.

Figure 25: End device control package

26 UV-PRC001-EN

ControlsTracer ZN520

Tracer ZN520 Zone ControllerThe ZN520 is a factory installed and tested direct digital control (DDC) board designed to provide control of the classroom unit ven-tilator, and the fan coil products.

The ZN520 controller is designed to be used in the following applica-tions:

• As part of the Trane Tracer Summit building automation system, the Tracer ZN520 be-comes an important part of the Trane Integrated Comfort system (ICS).

• The ZN520 can function as a completely standalone con-troller in situations where a building automation system (BAS) is not present.

• For situations when a non-Trane BAS is present, the ZN520 can be used as an in-teroperable unit controller.

Through building management of the HVAC system, optimizing en-ergy consumption becomes possi-ble at a classroom level. Each unit is capable of functioning indepen-dently of one another during occu-pied and unoccupied hours of the day. This allows the temperature setpoint and ventilation setting to be changed automatically based on classroom usage. See Figure 26 for Tracer ZN520 system.

Figure 26: Tracer ZN520 system

UV-PRC001-EN 27


Two Systems in OneIn an ICS environment, the ZN520 is pre-designed to install quickly and easily into the system. Since the controller and the unit are fac-tory tested and commissioned, the start-up time for the entire system is minimized. Trane becomes the single source of responsibility for the equipment, unit controls, and building automation system.

As a standalone controller, the ZN520 is ideally suited for fix-on-fail replacement of units with old pneumatic controllers, or in situa-tions where a BAS will be added at a later date. Once power is applied to the controller, it will automati-cally start up and run based upon the setpoint on the local zone sen-sor. An individual time clock can be added to the unit for local scheduling.

The ZN520 is certified to the in-teroperable LonMark Space Com-fort Controller profile. This allows the controller to be used with an-other vendor’s BAS and thereby still provide the high quality of fac-tory installation and testing. In ad-dition, the ZN520 provides one of the most extensive interoperable data lists of any controller of its type in the industry.

Tracer ZN520 features in-clude:

Automatic Fan and Ventilation ResetThe ZN520 can be selected to auto-matically choose the best fan speed for the classroom load. The goal is to keep the fan speed as low as possible and thereby mini-

mize air noise to the occupants. In the conjunction with this feature, the controller can automatically adjust the outside air damper with changes in fan speed. This helps maintain the proper amount of ventilation air to the occupants in-dependent of the fan speed.

Active DehumidificationOn unit ventilators with reheat coils, the ZN520 can provide active dehumidification to the class-room. This means that the classroom relative humidity can be kept below an adjustable set-point independent outdoor weath-er conditions. Indoor humidity levels are recommended by ASHRAE to be kept below 60% in order to minimize microbial growth and the life span of air-borne illness causing germs.

28 UV-PRC001-EN

Filter MaintenanceFilter status for the controller is based on the cumulative run hours of the unit fan. The controller com-pares the amount of fan run time against an adjustable fan run hour (stored in the controller) to deter-mine when maintenance is recom-mended for the unit. The run-hours value may be user edited as required (through Rover). The val-id range for the fan run hours limit is 0 to 5000 hours with a default of 600 hours. Once the run hours lim-it has been exceeded, the control-ler generates a maintenance required diagnostic (unit will not shut-down). The user will be noti-fied of this diagnostic through the building automation system or when a Trane Service Tool is com-municating with the controller.

Master Slave(Data Sharing)Because the ZN520 controller uti-lizes LonWorksTM technology, the controller can send or receive data (setpoint, heat/cool mode, fan re-quest, space temperature, etc.) to and from other controllers on the communication link with or with-out the existence of a building au-tomation system. This applies to applications where multiple units might share one zone sensor for both stand-alone (with communi-cation wiring between units) and a building automation system. See Figure 27 for ZN520 master slave system layout.


Manual Output TestThe ZN520 controller includes a manual output test function. This function may be initiated from the blue test push button on the con-troller or through RoverTM. This feature is used to manually exer-cise the outputs in a defined se-quence.

The purpose of this test sequence is to verify output and end device operation. The manual output test function may also be used in thefollowing situations:

• Reset latching diagnostics

• Verify output wiring and op-eration

• Force the water valve(s) open to balance the hydronic sys-tem during installation set-up or service.

Figure 27: ZN520 master slave system

UV-PRC001-EN 29

Water Valve OverrideThe ZN520 can be commanded via the Rover service tool to open all hydronic valves 100%. This allows for the faster water balancing of each unit and the entire system when the command is sent global-ly to all controllers. A properly bal-anced system is essential for proper and efficient operation.

Hydronic Coil Freeze Protection (Freeze Avoidance)Unit ventilator systems in cold cli-mates need to take precautions to avoid hydronic coil freeze-up. The ZN520 does this from three differ-ent aspects. Any of these methods of protections will result in the unit fan being disabled, the outside air damper being shut, and the hy-dronic valves being opened 100%.

The three methods of freeze avoid-ance include:

1 A binary freeze protection thermostat is mounted on the coil and will cause a latching diagnostic if the coil temperature falls below 35 F.

2 An analog discharge air sen-sor monitors the tempera-ture of the air coming off of the coil and if the tempera-ture falls below 40 F the out-side air damper is closed, the fan is turned off and the valves are fully opened.

3 When in the unoccupied mode the ZN520 has an ad-justable freeze avoidance setpoint. If the outside air temperature is below the setpoint the unit will open the valves to allow water to flow through the coils.

InteroperabilityInteroperability allows the owner freedom to select multiple ven-dors, and multiple products. With this advantage, the owner can choose the best products, the best application, and the best service from a variety of suppliers to meet their evolving building control needs in a cost effective manner.

Generic Binary Input/OutputThe three generic binary inputs/outputs are not part of the normal control, but are actually controlled through he Tracer Summit system (when present) to issue com-mands to the ZN520 control to turn the generic inputs/outputs of add-on equipment (such as baseboard heating, exhaust fans, occupancy sensor, lighting, etc.) on and off. This binary port is not affected when other binary diagnostics in-terrupt unit operation.


30 UV-PRC001-EN

TUC ControllerThe terminal unit control (TUC) board is a factory in-stalled DDC offering for class-

room unit ventilator systems. It is designed to support either:

• An Integrated Comfort system (ICS)

• A standalone configuration

The classroom unit ventilator con-trols will be configured at the fac-

tory per the application. Additionally, the configuration can be adjusted by using the service tool software, EveryWareTM in the field.

Integrated Control SystemWhen classroom unit ventilators are applied in combination with an integrated controller, like the TUC, and the Tracer Summit system, the unit ventilator will operate as part of a large building automation system. Diagnostics can be re-ceived remotely by a modem, al-lowing the service or maintenance technician to diagnose a failure or maintenance situation before comfort is compromised…thus re-ducing the number of on-site ser-vice calls. See Figure 28 for TUC/ICS control system.

ControlsTUC

Figure 28: TUC/ICS control system

UV-PRC001-EN 31

Standalone ConfigurationAs a standalone controller, the TUC is ideally suited for fix-on-fail replacement of units with old pneumatic controllers, or in situa-tions where a BAS will be added at a later date. Once power is applied to the controller, it will automati-cally start up and run based upon the setpoint on the local zone sen-sor. An individual time clock can be added to the unit for local scheduling.

TUC vs. ZN520 (What’s the Difference?)

When selecting an ICS system, It is often difficult to differentiate which system will better suit the comfort requirement within the building. There are very few differ-ences in the TUC and the ZN520 controller. And yet, these differ-ences should be evaluated prior to selecting the best-suited ICS sys-tem design.

Master SlaveA single zone sensor may be used to control multiple TUC controllers in a stand alone situation. The TUC controllers must be wired in paral-lel to respond properly to the zone sensor’s setpoint. See Figure 29 for a TUC master slave set-up.

With the master slave set-up, the common zone sensor cannot provide a set point to all the units.

ControlsTUC

Figure 29: TUC master slave set-up

Therefore, a unit mounted thermostat should be used on each unit to provide an adjustable set point for prop-er operation.

Note: When establishing the master slave sensor connection, it is critical to mention that the jumper (W1) on all TUC controllers wired in parallel to the master controller must be cut. If at a later time, a BAS is designed into the control system, a reinstallation of the jumper will be required.

32 UV-PRC001-EN

Dirty Filter ProofThe TUC controller provides posi-tive proof of a dirty filter via a dif-ferential pressure switch. The pressure switch contains two ports that reside on each side of the air filter. Unlike the ZN520 (which tracks fan time usage), the TUC control system gives the own-er positive proof of air resistance through the filter to notify the building owner of a filter mainte-nance situation

Active Humidity ControlTrane’s active dehumidification control strategy automatically de-termines the proper control se-quence and continuously resets the unit ventilator’s leaving air temperature, as needed, to man-age both the temperature and the relative humidity sensed in the space. This approach overcomes the deficiencies of other means of control based on temperature alone.

The active dehumidification con-trol, which includes a cooling coil with post conditioning (reheat) control, is available with the TUC.

The algorithms associated with this control option are specifically designed to govern both space temperature and relative humidi-ty. These algorithms minimize the amount of reheat needed to main-tain the space humidity below a preset limit. Reheat is used only when required, and is operated in the most energy efficient manner for the system. This reheat energy can be recovered from the chilled water system (most preferred), or provided as a new energy. See the Engineering Bulletin:UV-EB-11-497 (EN) for Active Humidity Control with Unit Venti-lator Systems.

Modulating Valve ControlConfiguration of a modulating an-alog actuator is possible with the TUC control selection. Unlike the ZN520 which controls as 2-posi-tion and 3-wire floating, the TUC allows a field supplied analog volt-age input from 0 to 10-volts (also, 4 to 20 mA, 2 to 10-volts, 1 to 5 VDC) to drive outside air control, and water valve control for true modulation of an outside air damper and/or coil control.

ControlsTUC

UV-PRC001-EN 33

About the Pneumatic ControlsTrane’s pneumatic control pack-age provides an ideal replacement and retrofit in existing units or ad-ditions currently designed with pneumatic controls.

Located in the right hand end pocket of the classroom unit venti-lator, the pneumatic package sup-ports a mixed air actuator, discharge air sensor, and required solenoids and pneumatic electric (PE) switches required for proper operation. See Figure 30 pneu-matic package. Trane provides the following selectable options are also available with the control-ler:

• Heating only room or zone control

• 2-pipe zone control

• 4-pipe zone control

• Electric low limit thermostat

• Valve or face and bypass control

• Valve or face and bypass con-trolDX

Note: Face and bypass is available for 2-pipe CW and HW systems only.

Zone vs. Room ControlZone control provides the ability to link several units together with a single unoccupied night thermo-stat. This enables the Unoccupied cycle from one central thermostat location.

Room control provides flexibility with a dual setpoint thermostat for each unit. This provides the ability to set a day temperature (occupied mode) and a night temperature (unoccupied mode) for each unit.

A single thermostat per unit is pro-vided for day (occupied mode) temperature setting with both zone and room control.

During the unoccupied cycle for zone control, the unit ventilators are cycled on a zone basis (zone in-dexing to be done by others). When the unit ventilator is off, the outside air damper is closed and the heating valve is in an open po-sition.

During the unoccupied cycle for room control, the outside air damper is closed and the hot wa-ter valve is open. As the space temperature drops below the un-occupied setpoint, the fan will cy-cle on and the outdoor air damper will remain closed. The fan remains

on until the space temperature ex-ceeds the unoccupied setpoint.

Note: The day/night changeover system is field supplied and in-stalled.

Morning Warm-upWhen the space temperature is greater than 3-degrees F below setpoint, the outside air damper remains closed. If the space tem-perature comes within 3-degrees F of setpoint the outside air damper will modulate to minimum posi-tion.

Low Temperature Protection(manual reset device)The low temperature thermostat option senses the discharge air temperature. Should the tempera-ture drop below 38-degrees F (ad-justable), the unit ventilator will become disabled.

ControlsPneumatic Controls

Figure 30: Pneumatic package

34 UV-PRC001-EN

Control Cycles-GeneralThere are a variety of control sys-tems available today in unit venti-lators. The exact method of controlling the amount of outside air and heating element capacity can vary. However, all systems provide a sequence of operation designed to provide rapid class-room warm-up and increasing amount of ventilation air to offset classroom overheating.

Classroom air conditioners are normally controlled according to ASHRAE Cycle I, II or III and varia-tions of these control cycles. The Trane classroom unit ventilators only utilize cycles I and II. See Fig-ure 31 for cycle charts.

ASHRAE Cycle I(Spring Return)ASHRAE Cycle I admits 100% out-door air at all times except during a warm-up cycle. During warm-up, the outside air damper is closed. As room temperature approaches the thermostat setting, the outside air damper opens fully, and the unit handles 100% outside air. Unit capacity is then controlled by modulating the heating element capacity.

ASHRAE Cycle I can be used in those areas where a large quantity of outdoor air is required to offset the air being exhausted relieving the room of unpleasant odors and particles.

ASHRAE Cycle II(spring return)

ASHRAE Cycle II is the most wide-ly used of the three types of series. Similar to ASHRAE Cycle I, the outside air damper is closed dur-ing warm-up. But with Cycle II, the unit handles recirculated air through the return-air system. As temperature approaches the com-fort setting, the outside air damp-er opens to admit a predetermined minimum amount of outside air. This minimum has been established by local code re-quirements and good engineering practices per ARI 840 to provide adequate ventilation. Unit capaci-ty is controlled by varying the heating element output. If room temperature rises above the ther-mostat setting, the heating ele-ment is turned off and an increasing amount of outside air is admitted until only outside air is being delivered.

This cycle may incorporate a min-imum discharge air temperature sensor that overrides the other controls to maintain an acceptable discharge temperature. When the outside air temperature is very cold, the minimum air tempera-ture control modulates the amount of outside air being deliv-ered. This keeps the mixture tem-perature delivered to the room at 55 F or 60 F.

ASHRAE Cycle II is a very econom-ical control sequence since only the minimum amount of outside air is heated and free natural cool-ing is available to offset the heat gains in occupied classrooms.

Figure 31: Cycle charts

ControlsASHRAE Cycles

UV-PRC001-EN 35

Application Considerations

Standard Depth UnitThe vertical unit ventilator is a floor mounted classroom air con-ditioner. Its main application is in the perimeter rooms of a school. Typically, the vertical unit is mounted flush with the wall with the fresh air opening in the back and the return air opening in the front. This allows for the fresh air to come straight through the wall to the unit.

An optional fully insulated back is available on the standard depth units for added protection in cold climates.

1-Inch Falseback UnitAn optional 1-inch falseback unit ventilator is designed to replace unit with similar depths (16 1/4-inch). It is ideal for matching a unit to existing shelving. This 1-inch extended depth is not recom-mended to be used as an air ple-num. The 1-inch added depth will not fit requirements as an air ple-num and should not be used in the design of this type of application.

Side View

Side View

36 UV-PRC001-EN


6-Inch Falseback UnitA 6-inch falseback unit increases the size of the fresh air opening to accommodate sunken rooms or wall openings that are difficult to reach. Wallbox location is more versatile with a 6-inch falseback because of the air plenum created by the added 6-inch depth. This application is often used to elevate the outside air (OA) opening above the snow line.

Trane offers an optional horizontal baffle to close-off outside air from the crossover piping and exterior surfaces in colder climates.

6-Inch Falseback UnitThe above picture features a 6-inch falseback with a standard insulated pipe chase cover.

6-Inch Falseback Unit with BaffleThe above picture features a 6-inch falseback with a standard insulated pipe chase cover and an optional insulated baffle.

Side Views

Exploded View

UV-PRC001-EN 37


Vertical Unit Ventilatorwith SubbaseA subbase is available in all 15 1/4-inch, 16 1/4-inch and 21 1/4-inch unit depths. The subbase will in-crease the over all unit height from 30 inches up to 32, 34, or 36-inches dependent upon subbase height ordered. The added height raises the outside air (OA) opening to aid in eliminating snow or debris from entering the unit ventilator.

Note: The subbase is shipped sep-arate from the unit (not connected to the unit) and installed at the job site for leveling purposes.

6-inch Falseback Unit withDucted TopAn optional ducted top inlet ar-rangement or discharge is also available. For the ducted applica-tion, it may be necessary to in-clude a motor with high external static pressure capabilities.

Caution:Applying high-static motors when the external static to the units is below 0.25-inch may cause objec-tionable noise.

Side View

Side View

38 UV-PRC001-EN


Dynamic Air Barrier UnitThe dynamic air barrier unit is tra-ditionally applied in cold climates. The dynamic air barrier unit pull the cold drafts from the windows through the shelving (by Trane) to be intercepted at both ends of the unit ventilator. The unit ventilator then draws the falling draft in as return-air to be circulated into the standard cycle.

When selecting the dynamic air barrier option, the face and bypass coil control is not available be-cause of space limitations of the unit when applying the face and bypass damper.

The dynamic air barrier’s return-air design does not include a damper in the unit ventilator’s up-per opening. This option only per-mits a free return-air design through the back of the unit ventilator.

UV-PRC001-EN 39


Energy RecoveryCompatible Unit VentilatorThe energy recovery unit ventila-tor (ERS) is designed to work with a classroom unit ventilator. This energy recovery design allows up to 500 cfm of outside air to be cir-culated into the space while cut-ting the ventilation load by 75-

percent on the classroom unit ventilator.

The ERS contains an air-to-air heat exchanger (desic-cant heat wheel) with two separate air streams flowing

in a counter-clockwise direc-tion. The desiccant wheel has a

75-percent efficiency that transfers both latent and sensible loads from the outside air in the summer to the exhaust air. In the winter, the wheel adds the room’s latent

and sensible loads to the in-coming ventilation air.

The energy recovery unit ven-tilator allows owners to bring the required outside air and save energy. The unit also provides a reliable solution to

ASHRAE 62-89 outside air require-ments.

The energy recovery system allows the unit

ventilator to be down-sized along with the chiller, boil-er and pip-ing.

Exploded View

Top View

Side View

Typical Application

40 UV-PRC001-EN

Complete SystemTrane provides an extensive selection of rug-

ged, versatile accessories matched to the styling of the Trane unit ventilator. With these accessories, an attrac-

tive wall-to-wall installation is possible that provides valu-able classroom storage. Trane accessory components adapt to

wall irregularities.


Outside Air LeakageIrregular or unlevel flooring along with an uneven wall may cause air leakage below the vertical classroom unit ven-tilator. To help prevent cold drafts from entering the classroom, Trane recommends an insulated pad to be placed below the unit ventilator. This field supplied pad aids in blocking the cold air from entering the room. This pad is not needed in most applications.

UV-PRC001-EN 41


Fully Recessed UnitThe horizontal unit ventilator is a ceiling hung air conditioner. The typical application is in an interior zone of a school. Trane offers sev-eral inlet and discharge arrange-ments to allow for numerous application needs.

For a totally concealed unit, Trane offers duct collars on the outside air inlet, return air inlet and dis-charge air outlet.

Partially Exposed UnitThe bottom discharge arrange-ment adds an overall width di-mension of 13 1/8-inch for unit sizes 075-150, and an added width of 14 1/8-inch for unit size 200.

To give the unit a finished appear-ance, recessing flanges may be selected.

42 UV-PRC001-EN


Partially Exposed UnitAnother example of a partially ex-posed unit ventilator is a fresh-air upper back, with a return-air lower back, and a bottom double deflec-tion discharge (option F in Digit 20).

This application requires field supplied ductwork to be run to the unit ventilator.

Fully Exposed UnitThe typical combination for a fully exposed unit application is a fresh-air ducted upper back, with a return-air bar grille on the bot-tom, and front discharge (option H in Digit 20).

Note: All horizontal unit configu-rations contain an appliance grade paint finish.

UV-PRC001-EN 43


Ducted DischargeWhen selecting ducted discharge for a horizontal unit ventilator, the location of the discharge ducting could be critical to other design features of the job. Recessed lighting may interfere with unit ductwork when working within the tight constraints above the ceiling grid. Trane offers three dif-ferent ducted discharge locations to aid in the design layout of the job.

Note: When a high external static pressure motor is used on a ducted system, the return-air should enter through a rear duct connection. The return-air should pass through a lined return-air duct with at least one 90-degree elbow to lower noise.

Condensate Piping The unit ventilator drain pan con-nection is located on the same side as the cooling coil connec-tions on all hydronic or DX units. The stubout connection size is 3/4-inch O.D.

All field supplied condensate lines to the unit should contain a 1/4-inch in 12-inch slope away from the unit ventilator. This is typical for most local codes. A trap is also typically provided somewhere in the system.

Note: Drain pan connections are field convertible.

44 UV-PRC001-EN

Ducted ApplicationsDuctwork to the unit ventilator may include outdoor air (OA), return air (RA) and/or discharge air (DA). The unit ventilator is designed to operate against external static pressures (ESP) thru 0.45”. The ESP is determined by adding the discharge air static pressure to the greater of either the outdoor air static pressure or the return air static pressure.A well designed duct system is beneficial to obtaining satisfactory fan performance. Determining resistance losses for the duct work system is also necessary for acceptable fan performance. Assistance in the design of duct work can be found in the ASHRAE Handbook.

Table 19: Static Pressure Percent Air Flow Reduction with Standard Motors

ESP - Inch Water 750 CFM 1000 CFM 1250 CFM 1500 CFM 2000 CFM

0.0625 8 7 10 9 6

0.125 15 14 18 17 12

0.1875 20 20 23 25 16

0.25 25 26 30 31 20

Table 20: Static Pressure Percent Air Flow Reduction with Hi-ESP Motors*

ESP - Inch Water 750 CFM 1000 CFM 1250 CFM 1500 CFM 2000 CFM

0.30 17 11 10 12 12

0.35 20 25 18 20 16

0.40 30 35 26 28 22

0.45 40 45 34 38 29

* Rated airflow @ .25” of static.Note: It is very important not to over-estimate the ESP and oversize the motor. Too large of a motor may result in operation problems such as noise, vibration and motor overloading. An example would be non-ducted application.A Hi ESP motor is typically specified when a supply-air duct is required. It is not recommended to use a Hi ESP motor in a non ducted application.


Figure 32:Part load capacity

UV-PRC001-EN 45

Trane classroom air conditioners provide air delivery and capacities necessary to meet the require-ments of modern school class-rooms. They are available with the industry’s widest selection of coils to precisely satisfy heating, venti-lating and air conditioning loads with the best individual type of system. Unit ventilator selection involves three basic steps.

• Determine classroom unit cooling and/or heating loads

• Determine unit size

• Select the coil

Capacity RequiredThe first step in unit ventilator se-lection is to determine room heat-ing and, in the case of air conditioned schools, air condition-ing loads. Accurate determination of heating requirements and air conditioning load is essential if the equipment is to be economical in first cost and operating cost.

Adequate ventilation is mandatory in classroom air conditioning de-sign. The amount is often specified by local or state codes and, in air conditioned schools, may be ei-ther the same or less than that specified for heating systems. The usual requirement is for between 15 and 25 cfm of outside air per oc-cupant, based on the intended use of the room. For instance, a chem-istry laboratory normally requires more ventilation for odor control than a low occupancy speech clin-ic.

Ventilation is an important con-cern and should be accurately de-

termined to assure good indoor air quality. Purposely oversizing units should be avoided, since it can cause comfort and control prob-lems.

Unit SizeUnit ventilator size is determined by three factors:

• Total air circulation

• Ventilation cooling economizer capacity required

• Total cooling or heating capac-ity required

Total air circulation, if not speci-fied by code, should be sufficient to ensure comfort conditions throughout the room. This is usu-ally from six to nine air changes per hour, but can vary with room design and exposure. Often rooms with large sun exposure require additional circulation to avoid hot spots.Ventilation cooling capacity is de-termined by the amount of outside air delivered with the outside air damper fully open, and the tem-perature difference between the outside air and the classroom. In air conditioning applications, ven-tilation cooling capacities should maintain the comfort setting in the classroom whenever the outside air temperature is below the unit or system changeover tempera-ture.

Example:Ventilation cooling capacity =

1.085 x cfm t x (T1 - T2)

cfmt = Total air capacity of unit with outside air damper open 100%.

T1 = Room temperature.

T2 = Outside air temperature.

In classrooms with exceptionally heavy air conditioning loads, unit size may be determined by the to-tal cooling requirement. Good practice dictates 375 to 425 cfm per ton of hydronic cooling capac-ity. Normally, however, Trane classroom air conditioner coils have sufficient capacities.

Example:Given: Air circulation specified = 8 air changes per hour

Classroom size = 35 ft long x 25 ft wide x 10 ft high

Inside design air temperature = 75 degrees F

Ventilation cooling required at 58 degrees F = 29,000 BTU

CFM required =

8 changes/hr x (35 x 25 x 10)ft3

60 Minutes/hr

= 1170 cfm

Checking ventilation cooling capacity:

29,800 BTU = 1.085 x CFM x (80-58)

CFM = 1250

This indicates that a 1250 cfm (size 12 unit) would have satisfactory ventilation cooling capacity at the design changeover point of 58-de-grees F. Coil capacity will become confirmed when the coil is select-ed.

Selection ProcedureHydronic Coils

46 UV-PRC001-EN

Selection ProcedureHydronic Coils

Coil SelectionSelecting the correct hydronic coil is done by using the Trane Official Product Selection System TOPSS.

Figure 33: TOPSS Icon.DX and steam coils are not avail-able in TOPSS. Refer to pages 78, 79, 81, 82, and 83.

Entering Conditions-CoolingIn cooling applications, the mixture of wet bulb and dry bulb tempera-tures are determined by the return air temperature, outside air tem-perature and percentage of outside air. The percentage of outside air is simply the cfm of outside air re-quired for ventilation, divided by the total air delivery of the unit.

Wet Bulb Mixed =

WBr +% OA(WBo - WBr)

Dry Bulb Mixed =

DBr +% OA(DBo - DBr)

WBr = Wet Bulb Return Air

WBo = Wet Bulb Outside Air

DBr = Dry Bulb Return Air

DBo = Dry Bulb Outside Air

% OA = Outside Air Percentage

For convenience, TOPSS has a mixed air calculator built into the program.

Hydronic SelectionsHydronic coil selections are deter-mined from:

• The entering wet and dry bulb (EWB and EDB) temperatures for cooling applications

• The entering dry bulb (EDB) temperature for heating appli-cations

• The entering water tempera-ture (EWT) in both heating and cooling applications

• Either the desired gallons per minute (GPM) or the water temperature change +T

UV-PRC001-EN 47

• The classroom application requires special consider-ations in order to prevent objectionable discharge air temperatures and nuisance trips. Because of the high number of occupants in a classroom, the space will require cooling even when the outside air temperature is very mild. With the mild ambient conditions, the system can create colder discharge air temperatures than what is desired by the occupants and can even trip the frost stat on the unit. A common way to prevent this is to order the condensing unit with a head pressure control device. Other preventative measures include field installation of either hot gas bypass or an evaporator minimum pressure regulator.

Another problem with split sys-tems is OVERSIZING. If the unit ventilator is oversized for the loads in the space, the compressor will have exceedingly short run times. Since unit ventilator provides con-tinuous ventilation in the occupied mode, the space will be heated by

the ventilation air and then the compressor will be enabled for a short time to cool down the space. This short cycling is detrimental to the compressor in the condensing unit. Additionally, in humid cli-mates the ventilation air will be full of moisture and the short run times for the compressor will keep the unit from extracting the hu-midity. This can result in class-room humidities above 60 percent.

If the condensing unit is oversized, the suction temperature of the re-frigerant will be excessively low and will cause nuisance trips on the frost stat. The best solution for DX unit sizing, is 400 cfm per ton of cooling capacity. If 400 cfm per ton is followed, then most prob-lems can be avoided. It is also wise to not only look at the design se-lection for the system, but also look at a typical low ambient con-dition to see if the suction temper-atures are below an acceptable level.

Selection ProcedureDirect Expansion Coils

Direct Expansion Refrigerant Cooling Coil SelectionTrane unit ventilators are available with direct expansion refrigerant cooling coils. These coils come complete with a thermal expan-sion valve. Trane unit ventilators with refrigerant coils will operate as a system with most properly sized condensing units.

The proper selection of a DX split system unit ventilator for a class-room application versus an office application requires different con-siderations. This is due to the dif-ference in the ventilation as well as the cooling requirements for the two applications.

• The office application is more like a DX split system that is applied in a residence than the typical classroom. The ventila-tion air introduced into the unit ventilator is small and the number of occupants per square foot of office space is less than the classroom. In most cases this application is relatively trouble free if the unit ventilator and the con-densing unit are sized prop-erly.

48 UV-PRC001-EN

Electric Heat Coil SelectionThe heating capacity of the electric fin-tube coil depends solely on the kW rating of the coil. For selection, refer to Table P16 or the TOPPS se-lection program. This table lists the kW rating of each coil and the MBh equivalent. Determine the smallest electric coil that will meet room heating capacity require-ments.

Example:Given: Total heating requirement = 86.5 MBh

Outside design conditions = 0 F

Inside design conditions = 70 F

Outside air = 33%

Classroom air conditioner previously selected = Size 125

Electric classroom air conditioners provide safe, functional and eco-nomical operation, utilizing a new concept of electric heat coil de-sign. The Trane electric coil is built by placing electric heating ele-ments inside a specially designed extended surface fin-tube bundle. This design results in a consider-

Selection ProcedureElectric Heat Coils/Steam Coils

able reduction in fin and element surface temperatures. Also, the Trane coil has more even temper-ature distribution across the ele-ment. Since coil life expectancy is dependent upon watt density (watts per inch of element), tem-perature at which the coil is oper-ating and air distribution over the coil, the unique Trane coil design helps maximize coil life.

Steam Coil SelectionThe capacity of steam heating coils is determined by the entering (mix-ture) air temperature to the coil and the pressure of saturated steam to the coil. Select the coil with a capacity equal to or greater than the total heating require-ments. Steam pressures of less than 5 psi may adversely affect coil performance.

Example:Given:Total heating requirement = 110.5 MBh

Outside design conditions = 20 F

Inside design conditions = 70 FOutside air = 27%

Saturated steam pressure = 5 lbs

Classroom air conditioner previously selected = Size 125

Entering air temp to coil = 70 - [.27 x (70-20)] = 56.5 F

The K2 coil at these conditions has a capacity of 111.0 MBh. Therefore, a K2 coil meets the room heating require-ments.

The air temperature rise = 80 F.Leaving air temperature = 45.7 + 95 = 125.7 F

Outside design conditions = 20 F.

UV-PRC001-EN 49

having laminar flow in the coil in-creases. This again is because gly-col is more viscous than water.With these effects in mind it is im-portant to use a minimum amount of glycol to protect the HVAC sys-tem.Burst Protection vs. Freeze Protection • Burst protection is sufficient in

systems where there is ade-quate space to accommodate the expansion of an ice/slush mixture. The protection works as follows: As the temperature drops below the solution’s freeze point, ice crystals begin to form. Because the water freezes first, the remaining glycol solution is further con-centrated and remains fluid. The combination of ice crys-

tals and fluid make a flowable slush. The volume increases as this slush forms and flows into the available expansion volume (usually an expansion tank). When a sufficient con-centration of glycol is present, no damage to the system will occur.

• Freeze protection is required in cases where no ice crystals can be permitted to form or where there is inadequate expansion volume available. HVAC systems intended to start-up in cold weather after prolonged winter shutdowns may require freeze protection. Table 21 is provided by Dow Chemical Co for its ethylene and propylene glycol prod-ucts:

Selection ProcedureGlycol Adjustment Factors

Glycol in an HVAC SystemBecause the detrimental effects of glycol are lower at high tempera-tures, little concern is given to ca-pacity loss or increased pump power when glycol is added to heating systems. This is why it is not uncommon to see glycol per-centages up to 40 percent in the heating loop of a system. Howev-er, the same is not true for cooling systems. Concentrations of this level are intolerable in cooling sys-tems where fluid temperatures are lower. The viscosity of the glycol increases as the temperature of the mixture drops. This not only decreases the effectiveness of the heat transfer, but it also makes the mixture more difficult to pump. To make things worse, as the percent-age of glycol increases, the risk of

Table 21 shows that a 30 percent ethylene glycol solution is enough to burst protect a system down to -60 de-gree F. Because of the benefits of burst protection, excessive glycol only degrades the heat transfer and in-creases the pressure drop of the fluid without providing additional system protection. Use glycol correctly.

Table 21: Percentage Volume Glycol Concentration

Temperature

Degree F

For Freeze Protection For Burst Protection

Ethylene Glycol Propylene Glycol Ethylene Glycol Propylene Glycol

20 16% 17% 11% 11%

10 25% 26% 17% 18%

0 33% 34% 22% 23%

-10 39% 41% 26% 28%

-20 44% 45% 30% 30%

-30 48% 49% 30% 33%

-40 52% 51% 30% 35%

-50 56% 53% 30% 35%

-60 60% 55% 30% 35%

50 UV-PRC001-EN

Glycol Correction FactorsThe following four charts give the correction factors for capacity and water pressure drops for both ethylene and propylene glycol. There are two charts for chilled water and two for hot water. The charts are approxima-tions of coil performance for any Trane coil selected for a unit ventilator. The correction factor lines grow broader as the percentage of glycol increases to include all coils in the chart. For example, a one row coil and a four row coil will have different operating characteristics, but the correction factors are usually within 5% of each other.(See Charts 1-4)

Selection ProcedureGlycol Adjustment Factors

Chart 1: Correction factors for Ethylene Glycol inchilled water at a constant gpm

Chart 2: Correction factors for Propylene Glycol inchilled water at a constant gpm

Chart 3: Correction factors for Ethylene Glycol inhot water at a constant gpm

Chart 4: Correction factors for Propylene Glycol inhot water at a constant gpm

UV-PRC001-EN 51

DIGIT 1-3: UNIT CONFIGURATIONSHL = Classroom Shelving

DIGIT 4: DEVELOPMENT SEQUENCE

A = Current Sequence

DIGIT 5: SHELVING STYLE0 = Continuous Top ONLY/No

Shelving2 = 18-inch Cut-to-Fit Filler3 = 36-inch Cut-to-Fit Filler4 = 12-inch Piping Compartment5 = 18-inch Piping CompartmentA = 2-ft Open ShelvingB = 3-ft Open ShelvingC = 4-ft Open ShelvingD = 5-ft Open ShelvingE = 3-ft Closed ShelvingF = 4-ft Closed ShelvingG = 5-ft Closed ShelvingH = 3-ft Open Shelving

with Dynamic Air BarrierJ = 4-ft Open Shelving

with Dynamic Air BarrierK = 5-ft Open Shelving

with Dynamic Air BarrierL = 3-ft Closed Shelving

with Dynamic Air BarrierM = 4-ft Closed Shelving

with Dynamic Air BarrierN = 5-ft Closed Shelving

with Dynamic Air Barrier

DIGIT 6: SHELVING TOP DEPTH/GRILLE

0 = Not Required1 = 15 1/4-inch Shelving and Top

Depth2 = 21 1/4-inch Top Depth w/o Grille3 = 21 1/4-inch Top Depth w/ Steel

Grille4 = 21 1/4-inch Top Depth w/Alumi-

num Grille and Damper5 = 21 1/4-inch Top Depth w/Alumi-

num Grille6 = 21 1/4-inch Deep Piping Com-

partment

DIGIT 7&8: LENGTH of FORMICA TOP

00 = No Formica Top for Shelving Selected

01 = Formica Top w/Same Size and Shelving

02 = 2-ft Top Only (no shelving)03 = 3-ft Top Only (no shelving)04 = 4-ft Top Only (no shelving)05 = 5-ft Top Only (no shelving)06 = 6-ft Continuous Top07 = 7-ft Continuous Top08 = 8-ft Continuous Top09 = 9-ft Continuous Top10 = 10-ft Continuous Top11 = 11-ft Continuous Top12 = 12-ft Continuous Top18 = 18-inch Top Only (no shelving)

DIGIT 9&10: DESIGN SEQUENCED0 = Current Sequence

DIGIT 11: DECORATOR FORMICA TOPS

0 = No TopA = Champagne Papyrus Formica®

TopC = Bordeaux Formica TopE = Almond Formica TopF = Ivory Blushing Formica TopG = Natural Canvas Formica TopH = Glacier Slate Formica TopJ = Birch Formica TopK = Folkstone Formica TopM = Fog Formica TopN = Tundra Terra Formica TopP = Light Mink Formica TopQ = Stone Dust Formica Top

DIGIT 12: SHELVING PAINT COLOR

0 = No Color Shelving FinishA = Cameo White Shelving FinishB = Soft Dove Shelving FinishC = Deluxe Beige Shelving FinishD = Driftwood Grey Shelving FinishE = Rose Mauve Shelving FinishF = Stone Grey Shelving FinishG = Bronze Tone Shelving Finish

DIGIT 13: END COVERS0 = No End CoversA = 15 1/4-inch Deep End Covers

w/o CutoutsB = 15 1/4-inch Deep End Covers w/

std CutoutsC = 15 1/4-inch Deep End Covers w/

Extended CutoutsD = 21 1/4-inch Deep End Covers

w/o CutoutsE = 21 1/4-inch Deep End Covers w/

std CutoutsF = 21 1/4-inch Deep End Covers w/

Extended Cutouts

DIGIT 14: SUBBASE0 = No Subbase Feature2 = 2-inch Subbase4 = 4-inch Subbase6 = 6-inch Subbase

DIGIT 15: KICKPLATE0 = Standard Kickplate1 = Side Kickplate2 = Solid Front Kickplate3 = Solid Front and Side Kickplate

DIGIT 16: KEY LOCK0 = Standard Lock1 = Master Key for Lock

ADDITIONAL ACCESSORIES

SGRL: Extra Steel Grille2ft: Extra 2-ft Steel Grille3ft: Extra 3-ft Steel Grille4ft: Extra 4-ft Steel Grille5ft: Extra 5-ft Steel Grille

AGRL: Extra Steel Grille2ft: Extra 2-ft Aluminum Grille3ft: Extra 3-ft Aluminum Grille4ft: Extra 4-ft Aluminum Grille5ft: Extra 5-ft Aluminum Grille

Model NumberShelving

Unit Ventilator Shelving

10 15SHL A G 2 05 D0 0 F A D 0 0 0

5

52 UV-PRC001-EN

Model NumberVertical Unit Ventilator

DIGIT 1-3: UNIT CONFIGURATIONVUV = Vertical Unit Ventilator


C = Third Generation

DIGIT 5-7: NOMINAL CAPACITY075 = 750 CFM100 = 1000 CFM125 = 1250 CFM150 = 1500 CFM

DIGIT 8: UNIT INCOMING POWER SUPPLY

1 = 120V/1-Phase Power Supply2 = 208V/1-Phase Power Supply3 = 208V/3-Phase Power Supply4 = 240V/1-Phase Power Supply5 = 240V/3-Phase Power Supply6 = 277V/1-Phase Power Supply8 = 480V/3-Phase 4-Wire Power

Supply

DIGIT 9: PSC MOTOR/DISCONNECT

0 = Std. Motor, No Disconnect1 = Std. Motor with Non-Fused

Toggle 2 = Std. Motor with Manual Starter3 = Std. Motor with Circuit Breaker

(E-Ht)A = Hi-ESP Motor, No DisconnectB = Hi-ESP Motor with Non-Fused

ToggleC = Hi-ESP Motor with Manual

StarterD = Hi-ESP Motor with Circuit Break-

er (E-Ht)

DIGIT 10&11: DESIGN SEQUENCEE0 = Factory Assigned

DIGIT 12&13: COIL CONFIGURATION

(Single Coil Options)AA = 2-Pipe CW/HW CoilAB = 2-Pipe CW/HW CoilAC = 2-Pipe CW/HW CoilAD = 2-Pipe CW/HW CoilAE = 2-Pipe CW/HW CoilH1 = 2-Pipe HW CoilH2 = 2-Pipe HW CoilH3 = 2-Pipe HW CoilH4 = 2-Pipe HW CoilH5 = 2-Pipe HW CoilH6 = 2-Pipe HW CoilK1 = 2-Pipe Steam Distributing CoilK2 = 2-Pipe Steam Distributing CoilE4 = 4-Element Electric Heat CoilE6 = 6-Element Electric Heat CoilE7 = 7-Element Electric Heat CoilE9 = 9-Element Electric Heat CoilF0 = 2-Pipe Direct Expansion Coil

(Coupled Coil Options)DA = 4-Pipe CW/Preheat HW CoilDC = 4-Pipe CW/Preheat HW CoilDD = 4-Pipe CW/Preheat HW CoilDE = 4-Pipe CW/Preheat HW CoilDK = 4-Pipe CW/Steam PreheatX3 = 2-Pipe CW/3-Element PreheatX4 = 2-Pipe CW/4-Element PreheatX6 = 2-Pipe CW/6-Element PreheatFA = 4-Pipe DX/HW Preheat CoilFK = 4-Pipe DX/Preheat Steam CoilF3 = 2-Pipe DX/3-Element PreheatF4 = 2-Pipe DX/4-Element PreheatF6 = 2-Pipe DX/6-Element PreheatR1 = 4-Pipe CW/Reheat HW CoilR2 = 4-Pipe CW/Reheat HW Coil

DIGIT 14: COIL CONNECTIONS(Single Coil Options)A = Right Hand SupplyB = Left Hand Supply

(Coupled Coil Options)C = Left Hand Cool/Right Hand HeatD = Right Hand Cool/Left Hand Heat

DIGIT 15: CONTROL TYPES0 = None/Field Installed Controls

(Terminal Unit Controller, Standalone)

A = TUC Std. PackageB = TUC Std. Package w/ Low TempC = TUC Std. Package w/Time ClockD = TUC Std. Package w/Low Temp

& Time Clock

(Terminal Unit Controller, Integrated Comfort System)

E = TUC Std. PackageF = TUC Std. Package w/Fan & Filter

StatusG = TUC Std. Package w/Low TempH = TUC Std. Package w/Low Temp,

Fan & Filter Status

(Pneumatic Control System)M = Pneumatic Room Control w/

Low TempP = Pneumatic Zone Control w/Low

Temp

(TracerTM ZN520, Standalone System)

Q = Tracer ZN520 Std. PackageR = Tracer ZN520 Std. Package w/

Low TempT = Tracer ZN520 Std. Package w/

Time ClockU = Tracer ZN520 Std. Package w/

Low Temp & Time Clock

(TracerTM ZN520, Integrated Comfort System)

V = Tracer ZN520 ICSW = Tracer ZN520 ICS w/Low TempX = Tracer ZN520 ICS w/Fan Status

ProofY = Tracer ZN520 ICS w/Low Temp &

Fan Status Proof

(End Device Package)8 = DDC Std. Package9 = DDC Std. Package w/Low Temp

Vertical Unit Ventilator

10 15VUV C 100 2 0 A0 DA C 0 0 0 0 0 1 1 A 0 1 0 0 0 0 1 1 1 0

5 20 25 30

UV-PRC001-EN 53


DIGIT 16: HEATING/CHANGE OVER COIL CONTROL

0 = None/Field Installed Controls1 = Face & Bypass Damper Only/Field

Installed Controls2 = Face & Bypass Damper w/2-Pipe

Control7 = Face & Bypass Damper w/2-Pipe

Control w/Isolation Valve3 = Face & Bypass Damper w/4-Pipe

Control w/Isolation Valve4 = Single Stage Electric Heat5 = Dual Stage Electric Heat

Modulating Spring Return ValveTwo-way Valve Pneumatic

Control OnlyD = 1/2-inch Valve, Cv = 1.8E = 1/2-inch Valve, Cv = 4.6F = 3/4-inch Valve, Cv = 7.3

Three-Point Modulating ValveTwo-way Valve DDC Control

8 = 1/2-inch Valve, Cv = 1.89 = 1/2-inch Valve, Cv = 4.6W = 1/2-inch Valve, Cv = 1.8 (A/R/H Coil)G = 1/2-inch Valve, Cv = 4.6 (A/R/H Coil)

H = 3/4-inch Valve, Cv = 7.3

Modulating Spring Return ValveThree-way Valve Pneumatic

Control OnlyM = 1/2-inch Valve, Cv = 1.8N= 1/2-inch Valve, Cv = 4.6P = 3/4-inch Valve, Cv = 7.3

Three-Point Modulating ValveThree-way Valve DDC Control

X = 1/2-inch Valve, Cv = 1.8Y = 1/2-inch Valve, Cv = 4.6Z = 1/2-inch Valve, Cv = 1.8 (A/R/H Coil)Q = 1/2-inch Valve, Cv = 4.6 (A/R/H Coil)

R = 3/4-inch Valve, Cv = 7.3

Three-Point Modulating ValveSteam Coil

DDC/Pneumatic ControlsT = 1/2-inch Valve, Cv = 1.8U= 1/2-inch Valve, Cv = 4.6V = 3/4-inch Valve, Cv = 7.3

DIGIT 17: COOLING COIL CONTROL

0 = None/Field Installed Controls1 = Single Stage DX Controls




W = 1/2-inch Valve, Cv = 1.8 G = 1/2-inch Valve, Cv = 4.6 H = 3/4-inch Valve, Cv = 7.3




Z = 1/2-inch Valve, Cv = 1.8 Q = 1/2-inch Valve, Cv = 4.6 R = 3/4-inch Valve, Cv = 7.3

DIGIT 18: DAMPER CONFIGURATION

0 = Field Installed Damper Actuator1 = 100% Return Air/No Damper or

Actuator

(Modulating ASHRAE Cycle II)3 = ERS without EconomizerF = RA/OA Damper and Actuactor (2-

10 VDC)A = RA/OA Damper and Actuator (3-

Point Modulating)E = RA/OA Damper and Actuator

with Exhaust (3-Point Mod)

(Two Position Control)B = RA/OA Damper and Actuator

(Fix-Min)C = 100% OA Damper and Actuator

(manual Control) D = Damper w/Manual Quad Adjust

DIGIT 19: ZONE SENSOR/FAN SPEED SWITCH

0 = No Sensor; Unit Mtd Manual Fan Speed Switch

1 = No Sensor; Unit Mtd Concealed Manual Fan Speed Switch

DDC Control Options-Wall Mtd Sensor and Speed Switch

A = Sensor w/External Setpoint, TOV & Cancel, 1-Spd Fan Switch

B = Sensor w/External Setpoint, TOV & Cancel, 2-Spd Fan Switch

D = Sensor w/Internal Setpoint, 2-Spd Fan Switch

DDC Control Options-Unit Mtd Sensor and Speed Switch

E = Sensor w/External Setpoint, TOV & Cancel, 1-Spd Fan Switch

F = Sensor w/External Setpoint, TOV & Cancel, 2-Spd Fan Switch

H = Sensor w/Internal Setpoint, 2-Spd Fan Switch

Tracer ZN520 Options-Wall Mtd Sensor & Speed Switch

T = Sensor w/External Setpoint, TOV, w/Fan High-Low-Auto-OFF

U = Sensor w/External Setpoint, TOV, w/Fan Auto-OFF

V = Sensor w/Internal Setpoint, TOV, w/Fan High-Low-Auto-OFF

W = Sensor w/External Setpoint, w/Fan High-Low-Auto-OFF

X = Sensor w/ Internal Setpoint, w/Fan Auto-OFF

Tracer ZN520 Options-Unit Mtd Sensor & Speed Switch

Y = Sensor w/External Setpoint, TOV, w/Fan High-Low-Auto-OFF

Z = Sensor, w/External Setpoint, TOV, w/Fan Auto-OFF

Pneumatic Options-Zone Sensor & Unit Mtd Manual Fan Spd

5 = Unit Mounted Sensor6 = Wall Mounted Sensor w/Internal

Setpoint

54 UV-PRC001-EN


DIGIT 20: INLET ARRANGEMENT1 = Return-Air Front/Fresh-Air Back3 = Return-Air Front/Fresh-Air Top

Inlet4 = 100% Return-Air Front5 = 100% Fresh-Air Back6 = 100% Fresh-Air Top Inlet7 = Dynamic Air BarrierA = ERS Compatible w/RH

ConnectionB = ERS Compatible w/ LH

Connection

DIGIT 21: DISCHARGE ARRANGEMENT

1 = Bar Grille Discharge2 = Duct Collar Discharge3 = Double Deflection Discharge4 = Bar Grille Discharge w/Wire

Mesh

DIGIT 22: UNIT DEPTHA = 15 1/4-inch Deep UnitB = 16 1/4-inch Deep UnitC = 21 1/4-inch Deep UnitD = 21 1/4-inch Deep Unit

w/Insulated Horizontal BaffleE = 21 1/4-inch Deep Unit w/Full

Sheetmetal BackF = 21 1/4-inch Deep Unit (ERS

Compatible)G = 15 1/4-inch Deep Unit

w/Insulated Back Panel

DIGIT 23: END COVERS0 = No End CoversA = 15 1/4-inch Depth w/o CutoutsB = 15 1/4-inch Depth

w/3 x 7 1/4-inch CutoutsC = 15 1/4-inch Depth

w/3 1/4 x 16 7/8-inch CutoutsD = 16 1/4-inch Depth w/o CutoutsE = 16 1/4-inch Depth

w/3 x 7 1/4-inch CutoutsF = 16 1/4-inch Depth

w/3 1/4 x 16 7/8-inch CutoutsG = 21 1/4-inch Depth w/o CutoutsH = 21 1/4-inch Depth

w/3 x 7 1/4-inch CutoutsJ = 21 1/4-inch Depth

w/3 1/4 x 16 7/8-inch Cutouts

DIGIT 24: FRONT PANEL1 = 16 Gauge Front Panel2 = 14 Gauge Front Panel

DIGIT 25: SUBBASE0 = No SubbaseA = 2-inch SubbaseB = 4-inch SubbaseC = 6-inch Subbase

DIGIT 26: RECESSING FLANGE0 = No Recessing Flange1 = Standard Recessing Flange

DIGIT 27: PIPING PACKAGE0 = No Factory Installed Piping

PackageA = Package 1; Standard PackageB = Package 2; Standard Package w/

Circuit Balancing ValveC = Package 3; Standard Package w/

Strainer and Circuit Balancing Valve

DIGIT 28: CROSSOVER PIPING0 = No Crossover Piping1 = 1 3/8-inch Crossover Piping2 = 2 1/8-inch Crossover Piping

DIGIT 29: FILTER1 = Throwaway Filter2 = Permanent/Renewable Polyure-

thane w/Metal Frame

DIGIT 30: COLOR SELECTION1 = Std. Deluxe Beige Cabinet2 = Cameo White Cabinet3 = Soft Dove Cabinet4 = Stone Gray Cabinet5 = Driftwood Gray Cabinet6 = Rose Mauve Cabinet7 = Bronzetone Cabinet

DIGIT 31: UL LISTING0 = Non UL Listed Unit1 = UL Listed Unit

DIGIT 32: DDC CONTROL ACCESSORIES

0 = No AccessoriesA = C0-2 SupportB = Wall Mounted Relative Humidity

SensorC = Baseboard Heat (ZN520 ONLY)D = Wall Mounted Relative Humidity

Sensor w/CO-2 Support (TUC ONLY)

UV-PRC001-EN 55

Model NumberHorizontal Unit Ventilator

DIGIT 1-3: UNIT CONFIGURATIONHUV = Horizontal Unit Ventilator


C = Third Generation

DIGIT 5-7: NOMINAL CAPACITY075 = 750 CFM100 = 1000 CFM125 = 1250 CFM150 = 1500 CFM200 = 2000 CFM


1 = 120V/1-Phase Power Supply2 = 208V/1-Phase Power Supply3 = 208V/3-Phase Power Supply4 = 240V/1-Phase Power Supply5 = 240V/3-Phase Power Supply6 = 277V/1-Phase Power Supply8 = 480V/3-Phase 4-Wire Power

Supply

DIGIT 9: PSC MOTOR/DISCONNECT

0 = Std. Motor, No Disconnect1 = Std. Motor with Non-Fused

Toggle 2 = Std. Motor with Manual Starter3 = Std. Motor with Circuit Breaker

(E-Ht)A = Hi-ESP Motor, No DisconnectB = Hi-ESP Motor with Non-Fused

ToggleC = Hi-ESP Motor with Manual

StarterD = Hi-ESP Motor with Circuit Break-

er (E-Ht)

DIGIT 10&11: DESIGN SEQUENCEE0 = Factory Assigned

DIGIT 12&13: COIL CONFIGURATION

(Single Coil Options)AA = 2-Pipe CW/HW CoilAB = 2-Pipe CW/HW CoilAC = 2-Pipe CW/HW CoilAD = 2-Pipe CW/HW CoilAE = 2-Pipe CW/HW CoilH1 = 2-Pipe HW CoilH2 = 2-Pipe HW CoilH3 = 2-Pipe HW CoilH4 = 2-Pipe HW CoilH5 = 2-Pipe HW CoilH6 = 2-Pipe HW CoilK1 = 2-Pipe Steam Distributing CoilK2 = 2-Pipe Steam Distributing CoilE4 = 4-Element Electric Heat CoilE6 = 6-Element Electric Heat CoilE7 = 7-Element Electric Heat CoilE9 = 9-Element Electric Heat CoilF0 = 2-Pipe Direct Expansion Coil

(Coupled Coil Options)DA = 4-Pipe CW/Preheat HW CoilDC = 4-Pipe CW/Preheat HW CoilDD = 4-Pipe CW/Preheat HW CoilDE = 4-Pipe CW/Preheat HW CoilDK = 4-Pipe CW/Steam PreheatX3 = 2-Pipe CW/3-Element PreheatX4 = 2-Pipe CW/4-Element PreheatX6 = 2-Pipe CW/6-Element PreheatFA = 4-Pipe DX/HW Preheat CoilFK = 4-Pipe DX/Preheat Steam CoilF3 = 2-Pipe DX/3-Element PreheatF4 = 2-Pipe DX/4-Element PreheatF6 = 2-Pipe DX/6-Element PreheatR1 = 4-Pipe CW/Reheat HW CoilR2 = 4-Pipe CW/Reheat HW Coil

DIGIT 14: COIL CONNECTIONS(Single Coil Options)A = Right Hand SupplyB = Left Hand Supply

(Coupled Coil Options)C = Left Hand Cool/Right Hand HeatD = Right Hand Cool/Left Hand Heat

DIGIT 15: CONTROL TYPES0 = None/Field Installed Controls

(Terminal Unit Controller, Standalone)

A = TUC Std. PackageB = TUC Std. Package w/ Low TempC = TUC Std. Package w/Time ClockD = TUC Std. Package w/Low Temp

& Time Clock

(Terminal Unit Controller, Integrated Comfort System)

E = TUC Std. PackageF = TUC Std. Package w/Fan & Filter

StatusG = TUC Std. Package w/Low TempH = TUC Std. Package w/Low Temp,

Fan & Filter Status

(Pneumatic Control System)M = Pneumatic Room Control w/

Low TempP = Pneumatic Zone Control w/Low

Temp

(TracerTM ZN520, Standalone System)

Q = Tracer ZN520 Std. PackageR = Tracer ZN520 Std. Package w/

Low TempT = Tracer ZN520 Std. Package w/

Time ClockU = Tracer ZN520 Std. Package w/

Low Temp & Time Clock

(TracerTM ZN520, Integrated Comfort System)

V = Tracer ZN520 ICSW = Tracer ZN520 ICS w/Low TempX = Tracer ZN520 ICS w/Fan Status

ProofY = Tracer ZN520 ICS w/Low Temp &

Fan Status Proof

(End Device Package)8 = DDC Std. Package9 = DDC Std. Package w/Low Temp

Horizontal Unit Ventilator

10 15HUV C 125 2 0 A0 AA B 0 0 0 0 0 1 1 A 0 1 0 0 0 0 1 1 1 0

5 20 25 30

56 UV-PRC001-EN


DIGIT 16: HEATING/CHANGE OVER COIL CONTROL

0 = None/Field Installed Controls1 = Face & Bypass Damper Only/Field

Installed Controls2 = Face & Bypass Damper w/2-Pipe

Control7 = Face & Bypass Damper w/2-Pipe

Control w/Isolation Valve3 = Face & Bypass Damper w/4-Pipe

Control w/Isolation Valve4 = Single Stage Electric Heat5 = Dual Stage Electric Heat




8 = 1/2-inch Valve, Cv = 1.89 = 1/2-inch Valve, Cv = 4.6W = 1/2-inch Valve, Cv = 1.8 (A/R/H Coil)G = 1/2-inch Valve, Cv = 4.6 (A/R/H Coil)

H = 3/4-inch Valve, Cv = 7.3




X = 1/2-inch Valve, Cv = 1.8Y = 1/2-inch Valve, Cv = 4.6Z = 1/2-inch Valve, Cv = 1.8 (A/R/H Coil)Q = 1/2-inch Valve, Cv = 4.6 (A/R/H Coil)

R = 3/4-inch Valve, Cv = 7.3

Three-Point Modulating ValveSteam Coil

DDC/Pneumatic ControlsT = 1/2-inch Valve, Cv = 1.8U= 1/2-inch Valve, Cv = 4.6V = 3/4-inch Valve, Cv = 7.3

DIGIT 17: COOLING COIL CONTROL

0 = None/Field Installed Controls1 = Single Stage DX Controls




W = 1/2-inch Valve, Cv = 1.8 G = 1/2-inch Valve, Cv = 4.6 H = 3/4-inch Valve, Cv = 7.3




Z = 1/2-inch Valve, Cv = 1.8 Q = 1/2-inch Valve, Cv = 4.6 R = 3/4-inch Valve, Cv = 7.3


0 = Field Installed Damper Actuator1 = 100% Return Air/No Damper or

Actuator

(Modulating ASHRAE Cycle II)F = RA/OA Damper and Actuator (2-

10 VDC)A = RA/OA Damper and Actuator (3-

Point Modulating)E = RA/OA Damper and Actuator

with Exhaust (3-Point Mod)

(Two Position Control)B = RA/OA Damper and Actuator

(Fix-Min)C = 100% OA Damper and Actuator

(manual Control) D = Damper w/Manual Quad Adjust

DIGIT 19: ZONE SENSOR/FAN SPEED SWITCH

0 = No Sensor; Unit Mtd Manual Fan Speed Switch

1 = No Sensor; Unit Mtd Concealed Manual Fan Speed Switch

DDC Control Options-Wall Mtd Sensor and Speed Switch

A = Sensor w/External Setpoint, TOV & Cancel, 1-Spd Fan Switch

B = Sensor w/External Setpoint, TOV & Cancel, 2-Spd Fan Switch

D = Sensor w/Internal Setpoint, 2-Spd Fan Switch

DDC Control Options-Unit Mtd Sensor and Speed Switch

E = Sensor w/External Setpoint, TOV & Cancel, 1-Spd Fan Switch

F = Sensor w/External Setpoint, TOV & Cancel, 2-Spd Fan Switch

H = Sensor w/Internal Setpoint, 2-Spd Fan Switch

Tracer ZN520 Options-Wall Mtd Sensor & Speed Switch

T = Sensor w/External Setpoint, TOV, w/Fan High-Low-Auto-OFF

U = Sensor w/External Setpoint, TOV, w/Fan Auto-OFF

V = Sensor w/Internal Setpoint, TOV, w/Fan High-Low-Auto-OFF

W = Sensor w/External Setpoint, w/Fan High-Low-Auto-OFF

X = Sensor w/ Internal Setpoint, w/Fan Auto-OFF

Tracer ZN520 Options-Unit Mtd Sensor & Speed Switch

Y = Sensor w/External Setpoint, TOV, w/Fan High-Low-Auto-OFF

Z = Sensor, w/External Setpoint, TOV, w/Fan Auto-OFF

Pneumatic Options-Zone Sensor & Unit Mtd Manual Fan Spd

5 = Unit Mounted Sensor6 = Wall Mounted Sensor w/Internal

Setpoint

UV-PRC001-EN 57

DIGIT 20: INLET ARRANGEMENTA = FA Duct Top/RA Duct Lower

BackB = FA Duct Top/RA Duct BottomC = FA Duct Top/RA Bar Grille Bot-

tomD = FA Duct Top/RA Open BottomE = 100% FA Duct TopF = FA Duct Upper Back/RA Duct

Lower BackG = FA Duct Upper Back/RA Duct

BottomH = FA Duct Upper Back/RA Bar

Grille BottomJ = FA Duct Upper Back/RA Open

Bottom (no grille)K = 100% FA Duct Upper BackL = 100% RA Duct Lower BackM = 100% RA Duct BottomN = 100% RA Bar Grille BottomP = 100% RA Open Bottom (no grille)

DIGIT 21: DISCHARGE ARRANGEMENT

1 = Bar Grille Discharge2 = Duct Collar Discharge 7 1/8-inch

from Top3 = Duct Collar Discharge 3/4-inch

from Top4 = Duct Collar Discharge 3 5/8-inch

from Top5 = Double Deflection Grille

Discharge6 = Double Deflection Opening Only

(no grille)7 = Bottom w/Double Deflection

Grille

DIGIT 22: UNIT ACCESS PANEL0 = Std. Horizontal Access Panel1 = Safety Chain/Std. Access Panel2 = Removable Access Panel3 = Safety Chain/Removable

Access Panel

DIGIT 23: RECESSING FLANGE0 = No Recessing Flange1 = Standard Recessing Flange

DIGIT 24: PIPING PACKAGE0 = No Factory Installed Piping

PackageA = Package 1; Standard PackageB = Package 2; Standard Package w/

Circuit Balancing ValveC = Package 3; Standard Package w/

Strainer and Circuit Balancing Valve

DIGIT 25: FILTER1 = Throwaway Filter2 = Permanent/Renewable Polyure-

thane w/Metal Frame

DIGIT 26: COLOR SELECTION1 = Std. Deluxe Beige Cabinet2 = Cameo White Cabinet3 = Soft Dove Cabinet4 = Stone Gray Cabinet5 = Driftwood Gray Cabinet6 = Rose Mauve Cabinet7 = Bronzetone Cabinet

DIGIT 27: UL LISTING0 = Non UL Listed Unit1 = UL Listed Unit

DIGIT 28: DDC CONTROL ACCESSORIES

0 = No AccessoriesA = C0-2 SupportB = Wall Mounted Relative Humidity

SensorC = Baseboard Heat (ZN520 ONLY)D = Wall Mounted Relative HumiditySensor w/CO-2 Support (TUC ONLY)


58 UV-PRC001-EN

DIGIT 1-3: UNIT CONFIGURATIONERS = Energy Recovery System


A = First Generation

DIGIT 5-7: NOMINAL CAPACITY050 = 500 CFM


1 = 120V/1-Phase Power Supply2 = 208V/1-Phase Power Supply3 = 240V/1-Phase Power Supply4 = 277V/1-Phase Power Supply

DIGIT 9: ETL LISTING0 = No ETL Listing1 = ETL Listing

DIGIT 10&11: DESIGN SEQUENCEBO = Factory Assigned

DIGIT 12: ELECTRIC DEFROST0 = None2 = 1.00 kW 208V/1-Phase3 = 2.00 kW 208V/1-Phase4 = 2.44 kW 208V/1-Phase5 = 1.07 kW 240V/1-Phase6 = 2.00 kW 240V/1-Phase7 = 3.25 kW 240V/1-Phase8 = 1.42 kW 277V/1-Phase9 = 2.73 kW 277V/1-PhaseA = 3.25 kW 277V/1-Phase

DIGIT 13: SUPPLY-AIR INLET to UNIT VENT

A = LH Inlet to UV (4-Pipe, Pipe Chase)

B = RH Inlet to UV (4-Pipe, Pipe Chase)

C = LH Inlet to UV (2-Pipe, Pipe Chase)

D = RH Inlet to UV (2-Pipe, Pipe Chase)


0 = No Damper1 = Backdraft Damper on Exhaust2 = Shut-Off Damper on Supply3 = Backdraft Damper on Exhaust &

Shut-Off Damper on Supply

DIGIT 15: Controls1 = Field Supplied/End Device2 = Field Supplied w/Economizer3 = DDC Controls

DIGIT 16: SUPPLY-AIR FILTER SIZE

2 = 1-inch Pleated Media (Std.)

DIGIT 17: COLOR SELECTION1 = Std. Deluxe Beige2 = Cameo White3 = Soft Dove4 = Stone Grey5 = Driftwood Grey6 = Rose Mauve7 = Bronze Tone

DIGIT 18: END COVER0 = No End CoverA = 21 1/4-inch Deep w/o CutoutsB = 21 1/4-inch Deep w/Std. Cutouts

(2-pipe)C = 21 1/4-inch Deep w/Extended

Cutouts (4-pipe)

DIGIT 19: SUBBASE0 = No Unit SubbaseA = 2-inch SubbaseB = 4-inch SubbaseC = 6-inch Subbase

DIGIT 20: OPEN DIGIT0 = Open Digit

DIGIT 21: WALL BOX and WALL BOX FINISH

00 = No WallboxCA = Clear Anodized FinishLB = Light Bronze FinishMB = Medium Bronze FinishDB = Dark Bronze FinishB1 = Brick (BR1) FinishB3 = Brick (BR3) FinishB5 = Brick (BR5) FinishWH = White FinishBL = Black Finish

Model NumberEnergy Recovery System

Energy Recovery Unit Ventilator

10 155 20ERS A 050 2 0 A0 0 A 1 2 1 0 0 CA

UV-PRC001-EN 59

General Data

Table 22: Weights & Measurements: Vertical Unit Ventilator

Unit Size 075 100 125 150

Unit Length w/o End Covers 69” 81” 93” 105”

Unit Height (Standard) 30” 30” 30” 30”

Unit Height (w/ 2” Subbase) 32” 32” 32” 32”



Unit Depth (Standard) 15 1/4” 15 1/4” 15 1/4” 15 1/4”

Unit Depth (1” Falseback) 16 1/4” 16 1/4” 16 1/4” 16 1/4”

Unit Depth (6” Falseback) 21 1/4” 21 1/4” 21 1/4” 21 1/4”

Shipping Weight (lbs.) 320 405 450 470

Filter Size (inches-actual) 41 1/2 x 13 3/8 x 1 53 1/2 x 13 3/8 x 1 65 1/2 x 13 3/8 x 1 77 1/2 x 13 3/8 x 1

Filter Size (dynamic-air) inches (2) 5 1/2 x 40 1/2 x 3/4 (2) 5 1/2 x 52 1/2 x 3/4 (2) 5 1/2 x 64 1/2 x 3/4 (2) 5 1/2 x 76 1/2 x 3/4

Table 23: Weights & Measurements: Horizontal Unit Ventilators

Unit Size 075 100 125 150 200

Unit Length 70 1/4” 82 1/4” 94 1/4” 106 1/4” 106 1/4”

Unit Height 16 5/8” 16 5/8” 16 5/8” 16 5/8” 17 5/8”

Unit Width (Front Discharge) 35 5/8” 35 5/8” 35 5/8” 35 5/8” 43 1/8”

Unit Width (Bottom Discharge) 48 3/4” 48 3/4” 48 3/4” 48 3/4” 57 1/4”

Shipping Weight (lbs.) * 340* 375* 435* 500* 600*

Filter Size (inches-actual) 41 1/2 x 15 1/4 x 1 53 1/2 x 15 1/4 x 1 65 1/2 x 15 1/4 x 1 77 1/2 x 15 1/4 x 1 77 1/2 x 15 1/4 x 1

*Working weight is approximately 10% less than shipping weight.

*Trane recommends 1/4-inch rods for hanging suspension.

Table 24: Standard Motor Data (Typical for AA Coil)

Unit Size Volts RPM (Nominal)

CFM (Nominal)

Amps (FLA)

Watts HP

075 115/60/1 1075 750 2.3 222 1/6

100 115/60/1 1075 1000 2.3 222 1/6

125 115/60/1 1075 1250 2.6 287 1/4

150 115/60/1 1075 1500 2.6 287 1/4

200 115/60/1 940 2000 5.7 639 1/3

Table 25: Hi-ESP Motor Data (Typical for AA Coil)

Unit Size Volts RPM (Nominal)

CFM (Nominal)

Amps (FLA)

Watts HP

075 115/60/1 1360 750 4.8 597 1/3

100 115/60/1 1360 1000 4.8 597 1/3

125 115/60/1 1410 1250 7.0 844 1/2

150 115/60/1 1410 1500 7.0 844 1/2

200 115/60/1 1140 2000 8.1 936 3/4

60 UV-PRC001-EN

GeneralData

Table 26: Coil Volume (Gallons)

Coil Type Unit Size Volume (Ga.)

AA,AB 075 0.72

AA,AB 100 0.85

AA,AB 125 0.99

AA,AB 150-200 1.57

AC 075 0.97

AC 100 1.17

AC 125 1.40

AC 150-200 2.27

AD & AE 075 1.25

AD & AE 100 1.51

AD & AE 125 1.80

AD & AE 150-200 2.96

DA-DC 075 0.86

DA-DC 100 0.98

DA-DC 125 1.13

DA-DC 150-200 1.71

DD-DE 075 1.11

DD-DE 100 1.30

DD-DE 125 1.53

DD-DE 150-200 2.39

DK 075 0.97

DK 100 1.17

DK 125 1.39

DK 150-200 2.25

H1-H3 075 0.24

H1-H3 100 0.30

H1-H3 125 0.35

H1-H3 150-200 0.68

H4-H6 075 0.72

H4-H6 100 0.85

H4-H6 125 0.99

H4-H6 150-200 1.57

R1-R2 075 1.21

R1-R2 100 1.47

R1-R2 125 1.73

R1-R2 150-200 2.94

X3-X6 075 0.97

X3-X6 100 1.17

X3-X6 125 0.99

X3-X6 150-200 2.26

UV-PRC001-EN 61

GeneralData

Table 27: Coil Area

Unit Size Length (inch)

Width (inch)

Face Area(Square-inch)

075 42 12 504

100 54 12 648

125 66 12 792

150 78 12 936

200 78 12 936

Table 28: Basic comments about the classroom unit ventilator

Model Number Designation What you should know about this designation...

Digit 8: Unit Incoming Power 1 Classroom unit ventilators that contain an electric heat coil are only available with a 3-phase power supply selection.

2 All unit power connections are in the left hand end pocket of the unit ventilator with an exception to units that contain an electric heat selection. The power connection for the electric heat option is located in the right hand end pocket.

3 A 120V incoming power is not available with an electric heat selection.

4 An incoming power of 480V/3-phase, 4-wire selection indicates that the building must contain a neutral wire in addition to an equipment ground.

Digit 9: PSC Motor/Disconnect 1 A non-fused toggle disconnect is not considered to be a true service disconnect because of its location inside the left hand end pocket of the cabinet (i.e. not located somewhere on the outside of the unit). This disconnect works similar to a light switch, in that it is convenient for turning off the unit when cleaning or performing other minor maintenance to the unit ventilator.

2 For electric heat units, a unit circuit breaker is available. This disconnect is located in the right hand end pocket of the unit ventilator.

3 All unit transformers are internally fused for basic unit protection. This eliminates the need for a circuit breaker for non-electric heat units.

4 Hi-static (HI-ESP) motors should only be applied to ducted units that require an ESP above .15" of water.

Digit 12&13: Coil Configuration 1 The A-style (2-pipe auto changeover) and H-style (2-pipe hot water) coils contain 3/4-inch headers and piping. These coils are available with valve, or face and bypass economizing control.

2 The K-style (steam) coils are available with face and bypass control ONLY (an isolation valve is option-al). Valve control is not available when ordering the K-style coil due to stratification and flooding during operation. Factory piping for the steam coil selections are not provided.

3 The E-style (electric heat ONLY) coils are provided with right hand connections. This coil selection is not available in a 120V incoming power option. Face and bypass is not provided with the E-style coil because of possible damage to the elements and overheating hazards.

4 The F0-style (direct expansion) coil is provided with a left hand connection ONLY. Face and bypass is not available with the F0 coil option.

5 The DA-DE (4-pipe) coils are available with a left cool/right heat connection, or vise-versa. The connec-tions are opposite end connections (NOT same-side connections). The cooling side of the coil is con-sidered the "main" coil connection…it is a 3/4-inch piping connection. The heating side of the coil is

considered the "auxiliary" coil connection…it is a 1/2-inch piping connection. Face and bypass control with an isolation valve is available on the DA-DE coils. Modulating valve control is also available with the DA-DE coil selection…but face and bypass with valve modulation isolation is not a valid option.

6 The vertical unit with DK (2-pipe CW/Steam preheat) coil selection is available with valve control…face and bypass is not allowed. The horizontal unit with DK coils may have valve control or face and bypass.

7 The X3-X6 (2-pipe CW/electric heat) coil selections are available as a left hand cool/right hand heat ONLY. Face & bypass is not available with the X3-X6 coil selections.

8 The FA, FK and F3-F6 coil selections are available with a left hand cool/right hand heat ONLY. Face and bypass is not valid with these coil selections.

9 The R-style (reheat) coil selections are available with dehumidification control. Face and bypass is not available when selecting the reheat coil selections.

62 UV-PRC001-EN

GeneralData


Digit 14: Coil Connections 1 Opposite-end coil piping connections are provided when selecting the 4-pipe or coupled coil option. Same-side coil connections are not provided from Trane.

2 If a cooling coil is selected in DIGIT 12, the drain pan slopes toward the cooling coils piping connection.

Digit 15: Unit Controls TUC and ZN520 Controls

1 If DDC (TUC or ZN520) controls are selected, the coil control valves and actuators must be ordered from the factory. This is to ensure that the system hardware is capable of working intimately with the con-troller to allow the system to function properly.

2 Fan and filter status is available when selecting the Integrated Comfort System ONLY. Standalone con-trols do not contain a device for status report for this option.

3 All internal sensors are provided in the unit if factory mounted DDC controls are selected.

Pneumatic Controls

1 Pneumatic controls are available with face and bypass coil control with exception of 4-pipe and steam coil selections. This is due to the need for isolation valve control for the coils…which is not available on a pneumatic system.

2 Because the pneumatic package is factory calibrated from Johnson Controls®, an end-device is not possible.

End Device Controls

1 The end device control package is available with factory wired valves, actuators and freeze-stat (but not required). A 24-volt transformer and a start/stop relay is provided with this control option.

2 Face and bypass is not a selectable option with the end device package because of terminal strip wiring limitations.

3 Trane zone sensors will not be provided with this control option.

4 DX, electric heat, and steam coils will not be allowed when selecting end device controls.

5 Crossover piping is not allowed when selecting end device controls.

Digit 16: Cooling Coil Control 1 The face and bypass selection (Digit 16 = 2,3,4,5,7) is allowed with the TUC and ZN520 controls ONLY. All E, F, X, R and DK-style coils are not available with the face and bypass selection.

2 Isolation valves may be factory piped or shipped loose to the job site. They are of open or closed op-eration ONLY. Modulating valves are not available. The valves spring return to their "normal" or non-energized state (either normally open for heating, or normally closed for cooling).

3 Valve control for pneumatic controls is provided when Digit 16 = D,E,F,M,N,P. The valves may be fac-tory piped, or shipped loose.

4 Valve control for TUC, ZN520 and end device controls is provided when Digit 16 = 8,9,W,G,H,X,Y,Z,Q,R. The valves may be factory piped, or shipped loose.

5 Valve control for steam coils are provided when Digit 16 = T,U,V. These valves are shipped loose ONLY, and are used with TUC, ZN520, end device and pneumatic controls.

Digit 17: Heating Coil Control 1 Single stage DX control (Digit 17 = 1) is allowed with the TUC and ZN520 controls ONLY.

2 Isolation valves may be factory piped or shipped loose to the job site. They are of open or closed op-eration ONLY. Modulating valves are not available. The valves spring return to their "normal" or non-energized state (either normally open for heating, or normally closed for cooling).

3 Valve control for pneumatic controls is provided when Digit 17 = D,E,F,M,N,P. The valves may be fac-tory piped, or shipped loose.

4 Valve control for TUC, ZN520 and end device controls is provided when Digit 17 = W,G,H,Z,Q,R. The valves may be factory piped, or shipped loose.

Digit 18: Damper Configuration 1 The 2-10 VDC and 3-point modulating actuator (Digit 18 = F, A, E) is only available when selecting end device controls.

2 2-position damper control (Digit 18 = B,C) is only available when selecting TUC or ZN520 controls.

3 The manual quadrant adjust damper control (Digit 18 = D) remains in a fixed position. The unit must be physically opened, and manually adjusted to a new position.

UV-PRC001-EN 63

GeneralData


Digit 19: Zone Sensor/Fan Speed Switch

1 The concealed, or rotated fan speed switch (Digit 19 = 1) is adjustable via the unit front panel. By se-lecting a unit ventilator with a ducted discharge, the fan speed switch must be ordered as concealed. Because the unit is ducted (not grilled), the user will be unable to adjust the "non-rotated" switch. Therefore, the switch must be rotated towards the unit front panel for panel removal, and switch ad-justment. Unit ventilators ordered with Digit 19 as 0 or 1 must contain field installed/end device con-trols.

2 Unit ventilators with TUC controls utilize sensors A-H.

3 Unit ventilators with ZN520 controls utilize sensors T-Z.

4 Unit ventilators with Pneumatic controls utilize sensors 5 & 6.

5 Steam coils are not compatible with unit mounted sensors (Digit 19 = E,F,H,Y,Z,5) because of the radi-ant heat that is produced by these coils may shorten the sensor life.

Digit 20: Inlet Arrangement 1 When selecting an inlet arrangement, specify a compatible damper configuration (Digit 18) for unit to function properly. (Example: If Digit 20 = 4 (100% RA front), then Digit 18 must = 1 (100% return, no damper or actuator).

2 A unit that contains a dynamic air barrier inlet (Digit 20 = 7), allows the return-air to be brought into the back of the unit ventilator above the outside-air section. Because of the space limitations in the unit with the dynamic air selection, the face and bypass (economizing) option will not be available.

3 A unit that contains a ERS compatible inlet (Digit 20 = A,B), allows the unit ventilator to be prewired with a crossover to run cohesively with an energy recovery system .

Digit 27: Piping Packages 1 A valve must be selected (Digit 15 and 16) for unit to contain factory piping. These packages are built and optimized with 2-way or 3-way valves.

2 Piping packages C and D are only available with the modulating valve selections. Isolation valves (Digit 16 = 2,3,7 are not available with piping packages C and D.

Digit 28: Crossover Piping 1 Crossover piping is only available on vertical unit ventilators.

2 The crossover selection is not available with the following coils (FA,X3,X4,X6,K1,K2,FK).

Digit 32: DDC Control Accessories

1 Unit ventilators that contain reheat coil (Digit 12 = R1,R2) and TUC controls must contain the wall mounted relative humidity sensor (option B or D) in Digit 32 for proper functionality.

64 UV-PRC001-EN

General DataHorizontal Inlet Arrangements

Inlet Arrangements

UV-PRC001-EN 65

Inlet Arrangements

General DataVertical Inlet Arrangements

66 UV-PRC001-EN

Discharge Arrangements

General DataVertical/Horizontal Discharge

UV-PRC001-EN 67

Tables S1 and S2 reflect sound power ratings for the vertical and horizontal classroom unit ventilator. To cal-culate the noise criteria (NC) for a unit, subtract the actual room effect from the sound power number in each octave band. These numbers may be graphed on a NC chart. Note: Because room affects vary greatly, request exact numbers per the specific job from the design engineer. By obtaining these exact numbers, the most ac-curate results of the installed unit may be calculated.

Data obtained in the reverberant rooms conforming to ANSI S12.31 and ANSI S12.32

Table S2: Horizontal octave band sound power ratings (sound power in db ref: 10-12 watts)

Table S1: Vertical octave band sound power ratings (sound power in db ref: 10-12 watts)

Octave Band 1 2 3 4 5 6 7 8

Center of Fre-quency

63 125 250 500 1000 2000 4000 8000

075 High Speed 61 68 65 53 56 52 48 43

075 Low Speed 57 67 60 55 51 47 42 34

100 High Speed 62 68 65 60 56 53 48 41

100 Low Speed 52 65 57 52 47 43 35 25

125 High Speed 61 69 66 62 56 53 48 41

125 Low Speed 55 64 60 56 50 47 40 31

150 High Speed 62 75 67 63 57 53 49 40

150 Low Speed 54 70 60 56 49 44 37 29

Octave Band 1 2 3 4 5 6 7 8

Center of Fre-quency

63 125 250 500 1000 2000 4000 8000

075 High Speed 66 67 61 60 56 53 48 41

075 Low Speed 62 64 58 57 52 49 43 35

100 High Speed 66 67 61 60 56 52 48 41

100 Low Speed 59 61 55 54 43 45 38 29

125 High Speed 70 71 65 64 60 56 51 44

125 Low Speed 65 67 61 62 55 50 44 36

150 High Speed 65 68 62 60 56 52 45 38

150 Low Speed 57 63 54 53 47 42 33 25

200 High Speed 73 75 68 64 60 57 53 45

200 Low Speed 64 74 59 60 49 45 37 29

Table S3: Inlet grille free area

Unit Size Vertical Minimum Free Area Horizontal Minimum Free Area

OutletSq. In.

InletSq. In.

OutletSq. In.

InletSq. In.

075 290 113 232 144

100 370 145 296 192

125 450 188 364 240

150 and 200 530 210 430 288

Performance DataAcoustic Ratings

68 UV-PRC001-EN

Performance DataVertical Cfg. (A-Coil/D-Coil)

Table P1: VUV; 2-pipe coil with free dischargeVUVSize

CoilType

CFM Cooling (80/67 EAT, 45 EWT/55 LWT) Heating (70 EAT, 180 EWT/140 LWT)WattTMBH SMBH GPM WPD TMBH GPM WPD

075

AA 835 18.5 14.8 3.70 1.5 50.4 2.52 0.6 170

AB 800 22.3 16.7 4.46 2.1 56.5 2.83 0.8 170

AC 800 28.4 19.3 5.67 4.7 63.0 3.15 1.3 170

AD 760 24.1 17.5 4.82 0.9 65.8 3.29 0.4 160

AE 710 25.6 17.5 5.12 1.0 67.5 3.37 0.4 160

100

AA 1085 26.3 19.6 5.27 3.4 66.8 3.34 1.2 205

AB 1050 30.2 21.7 6.03 4.4 75.4 3.77 1.5 205

AC 1040 36.9 24.7 7.37 9.0 82.8 4.14 2.6 205

AD 1005 35.8 24.3 7.16 2.2 88.7 4.44 0.8 205

AE 950 37.3 24.4 7.45 2.3 91.9 4.59 0.8 205

125

AA 1275 34.1 25.6 6.81 6.3 80.5 4.03 2.0 230

AB 1235 38.8 27.9 7.76 7.9 90.9 4.55 2.5 230

AC 1230 42.0 29.0 8.40 4.7 97.6 4.88 1.5 230

AD 1265 49.3 32.6 9.86 4.4 112.6 5.63 1.3 260

AE 1190 50.1 32.1 10.01 4.5 116.0 5.80 1.4 260

150

AA 1655 42.4 30.5 8.49 10.6 102.7 5.13 3.5 290

AB 1595 47.5 33.0 9.50 12.9 115.8 5.79 4.3 290

AC 1585 53.0 35.4 10.61 8.0 124.4 6.22 2.5 290

AD 1530 59.6 38.4 11.93 6.9 136.7 6.84 2.1 280

AE 1455 61.3 38.5 12.26 7.2 142.2 7.11 2.3 280

Table P2: VUV; 4-pipe coil with free dischargeVUVSize

CoilType


075

DA 800 17.4 13.9 3.47 1.4 50.6 2.53 0.5 170

DC 760 21.3 15.9 4.27 2.0 55.6 2.78 0.6 160

DD 760 27.4 18.6 5.49 4.4 48.7 2.44 0.5 160

DE 710 28.2 18.8 5.64 4.7 52.8 2.64 0.6 160

100

DA 1040 25.6 18.9 5.11 3.3 67.0 3.35 1.0 205

DC 1005 29.1 20.9 5.82 4.1 74.6 3.73 1.2 205

DD 1005 35.9 23.9 7.17 8.5 65.4 3.27 0.9 205

DE 950 37.0 24.5 7.41 9.0 70.3 3.51 1.1 205

125

DA 1230 32.8 24.5 6.56 5.9 81.2 4.06 1.6 230

DC 1265 38.6 27.7 7.72 7.9 94.5 4.73 2.1 260

DD 1265 42.8 29.6 8.56 5.1 82.8 4.14 1.6 260

DE 1190 44.1 30.1 8.82 5.6 90.3 4.51 1.9 260

150

DA 1585 41.4 29.6 8.28 10.1 103.1 5.15 2.6 290

DC 1530 46.3 32.1 9.26 12.3 114.8 5.74 3.2 280

DD 1530 51.9 34.6 10.37 8.0 100.5 5.03 2.5 280

DE 1455 54.1 35.7 10.83 9.0 110.6 5.53 3.0 280

UV-PRC001-EN 69

Performance DataVertical Cfg. (A-Coil/D-Coil)

Table P3: VUV; 2-pipe coil with high static motorVUVSize

CoilType


075

AA 805 18.0 14.4 3.61 1.5 49.1 2.45 0.6 330

AB 785 22.1 16.5 4.42 2.1 55.7 2.79 0.8 330

AC 785 28.3 19.2 5.66 4.7 62.0 3.10 1.3 330

AD 870 28.8 20.6 5.77 1.3 73.6 3.68 0.5 380

AE 830 31.1 21.0 6.23 1.5 77.4 3.87 0.5 380

100

AA 1005 25.8 19.1 5.16 3.3 63.3 3.16 1.1 430

AB 980 29.2 20.9 5.84 4.1 71.7 3.58 1.4 430

AC 980 36.0 24.0 7.19 8.6 79.1 3.95 2.4 430

AD 1055 37.8 25.7 7.57 2.4 92.3 4.62 0.8 465

AE 1010 40.0 26.2 8.00 2.7 96.9 4.84 0.9 465

125

AA 1365 36.4 27.6 7.29 7.1 84.5 4.22 2.2 530

AB 1335 41.3 29.8 8.25 8.8 96.3 4.81 2.8 530

AC 1330 45.6 31.8 9.12 5.5 103.6 5.18 1.6 530

AD 1300 50.7 33.6 10.14 4.6 115.1 5.75 1.4 520

AE 1250 53.3 34.2 10.65 5.1 121.0 6.05 1.5 510

150

AA 1550 43.1 31.0 8.62 10.9 98.1 4.90 3.2 565

AB 1525 47.6 33.1 9.51 12.9 112.1 5.60 4.1 565

AC 1520 53.2 35.5 10.64 8.1 120.4 6.02 2.4 565

AD 1490 60.8 39.3 12.16 7.1 133.8 6.69 2.0 565

AE 1805 76.5 48.5 15.30 10.8 170.9 8.54 3.2 680

Table P4: VUV; 4-pipe coil with high static motorVUVSize

CoilType


075

DA 785 17.3 13.8 3.46 1.4 49.9 2.49 0.5 330

DC 870 24.2 18.2 4.84 2.5 61.4 3.07 0.8 380

DD 870 30.7 21.0 6.14 5.4 53.6 2.68 0.6 380

DE 830 32.4 21.7 6.47 5.9 59.3 2.97 0.7 380

100

DA 980 24.9 18.4 4.98 3.1 64.2 3.21 0.9 430

DC 1055 30.5 21.9 6.10 4.5 77.3 3.87 1.3 465

DD 1055 37.4 25.1 7.49 9.2 67.7 3.39 1.0 465

DE 1010 39.3 26.0 7.86 10.0 73.6 3.68 1.2 465

125

DA 1330 35.2 26.6 7.05 6.7 85.8 4.29 1.7 530

DC 1300 39.6 28.5 7.92 8.2 96.5 4.82 2.2 520

DD 1300 43.9 30.4 8.77 5.3 84.4 4.22 1.7 520

DE 1250 46.7 32.0 9.34 6.2 93.7 4.68 2.0 510

150

DA 1520 41.5 29.7 8.30 10.2 100.1 5.00 2.5 565

DC 1490 47.1 32.8 9.42 12.7 112.6 5.63 3.1 565

DD 1490 52.8 35.2 10.55 8.3 98.6 4.93 2.4 565

DE 1805 66.4 44.4 13.28 13.0 129.5 6.48 4.0 680

70 UV-PRC001-EN

Performance DataHorizontal Cfg. (A-Coil)

Table P5: HUV; 2-pipe coil with free dischargeVUVSize

CoilType


075

AA 875 19.0 15.3 3.8 1.6 52.0 2.60 0.7 160

AB 825 21.1 16.2 4.22 1.9 57.8 2.89 0.8 160

AC 815 27.9 19.2 5.58 4.6 63.9 3.19 1.4 160

AD 780 21.0 16.6 4.20 0.7 67.2 3.36 0.4 160

AE 760 19.9 15.5 3.97 0.6 71.7 3.58 0.5 160

100

AA 1090 25.6 19.0 5.13 3.3 67.0 3.35 1.2 210

AB 1030 27.7 20.0 5.54 3.8 74.4 3.72 1.5 210

AC 1025 34.6 23.1 6.93 8.0 81.9 4.09 2.5 210

AD 975 31.0 21.4 6.19 1.7 86.6 4.33 0.7 210

AE 1015 31.7 21.6 6.35 1.8 97.3 4.87 0.9 210

125

AA 1240 34.1 25.5 6.82 6.3 79.0 3.95 1.9 225

AB 1300 38.5 27.7 7.69 7.8 94.4 4.72 2.7 240

AC 1290 43.2 30.0 8.65 5.0 101.2 5.06 1.6 240

AD 1240 47.1 31.4 9.42 4.0 110.7 5.54 1.3 240

AE 1265 47.1 31.0 9.43 4.1 122.3 6.11 1.6 265

150

AA 1600 42.9 31.7 8.58 10.8 100.3 5.01 3.3 260

AB 1525 44.9 31.8 8.98 11.7 112.1 5.60 4.1 260

AC 1510 51.0 34.3 10.20 7.5 119.9 5.99 2.4 260

AD 1600 56.9 36.9 11.39 6.3 141.8 7.09 2.3 295

AE 1485 55.3 35.3 11.06 6.0 144.8 7.24 2.3 295

200

AA 2085 51.1 38.9 10.23 14.7 120.0 6.00 4.6 570

AB 1985 56.3 40.9 11.27 17.5 135.4 6.77 5.7 560

AC 1970 63.9 44.1 12.77 11.2 146.4 7.32 3.4 560

AD 1885 71.0 46.8 14.20 9.5 161.7 8.08 2.9 540

AE 1785 68.6 44.3 13.73 8.9 169.3 8.47 3.1 530

UV-PRC001-EN 71

Performance DataHorizontal Cfg. (D-Coil)

Table P6: HUV; 4-pipe coil with free dischargeVUVSize

CoilType


075

DA 815 18.1 14.5 3.63 1.5 51.2 2.56 0.5 160

DC 780 20.3 15.6 4.06 1.8 56.7 2.83 0.7 160

DD 780 27.1 18.6 5.42 4.3 49.7 2.48 0.5 160

DE 760 27.7 18.7 5.54 4.5 55.6 2.78 0.6 160

100

DA 1025 24.7 18.2 4.95 3.1 66.3 3.32 1.0 210

DC 975 26.3 18.9 5.25 3.4 73.0 3.65 1.2 210

DD 975 33.3 22.1 6.66 7.5 64.0 3.20 0.9 210

DE 1015 35.5 23.4 7.09 8.4 73.9 3.69 1.2 210

125

DA 1290 34.7 26.0 6.93 6.5 84.0 4.20 1.7 240

DC 1240 37.6 27.1 7.52 7.5 93.1 4.66 2.0 240

DD 1240 42.4 29.4 8.48 5.0 81.6 4.08 1.6 240

DE 1265 45.3 31.0 9.06 5.8 94.5 4.73 2.1 265

150

DA 1510 41.0 30.0 8.20 9.9 99.6 4.98 2.5 260

DC 1600 44.9 31.8 8.98 11.7 118.6 5.93 3.4 295

DD 1600 51.1 34.4 10.23 7.8 103.7 5.19 2.7 295

DE 1485 52.9 35.2 10.58 8.6 112.3 5.61 3.1 295

200

DA 1970 49.6 37.6 9.93 13.9 119.8 5.99 3.5 560

DC 1885 54.8 39.7 10.96 16.6 133.6 6.68 4.3 540

DD 1885 62.4 42.9 12.47 11.2 116.2 5.81 3.3 540

DE 1785 64.8 43.8 12.96 12.5 128.5 6.43 4.0 530

72 UV-PRC001-EN

Performance DataHorizontal Cfg. (A-Coil)

Table P7: HUV; 2-pipe coil with high static motorVUVSize

CoilType


075

AA 780 17.3 13.9 3.47 1.4 48.0 2.40 0.6 305

AB 760 19.7 15.1 3.93 1.7 54.4 2.72 0.7 305

AC 755 26.3 18.0 5.25 4.1 60.2 3.01 1.2 305

AD 740 18.9 15.3 3.78 0.6 64.2 3.21 0.4 305

AE 795 22.2 16.8 4.44 0.8 74.5 3.73 0.5 335

100

AA 1115 28.5 21.3 5.70 3.9 68.0 3.40 1.3 500

AB 1090 31.4 22.8 6.29 4.7 77.5 3.88 1.6 500

AC 1085 39.1 26.4 7.83 10.0 85.5 4.28 2.7 500

AD 1055 37.4 25.9 7.49 2.4 92.4 4.62 0.8 500

AE 1005 36.0 24.4 7.20 2.2 96.4 4.82 0.9 480

125

AA 1255 35.0 26.3 7.01 6.6 79.6 3.98 2.0 470

AB 1225 38.1 27.5 7.62 7.7 90.4 4.52 2.5 470

AC 1220 42.8 29.7 8.57 4.9 96.9 4.85 1.4 470

AD 1350 51.6 34.6 10.32 4.8 118.7 5.93 1.5 525

AE 1295 50.0 32.9 10.00 4.5 124.8 6.24 1.6 525

150

AA 1490 38.7 28.1 7.73 9.0 95.4 4.77 3.1 550

AB 1450 41.2 29.0 8.23 10.0 108.0 5.40 3.8 550

AC 1445 46.9 31.3 9.38 6.5 115.8 5.79 2.2 550

AD 1715 56.6 36.6 11.32 6.3 150.0 7.50 2.5 680

AE 1635 54.1 34.5 10.82 5.8 157.2 7.86 2.7 680

200

AA 2095 50.4 38.3 10.08 14.3 120.4 6.02 4.6 810

AB 2005 55.4 40.2 11.08 17.0 136.4 6.82 5.8 790

AC 1990 62.7 43.2 12.54 10.8 147.4 7.37 3.4 790

AD 1895 69.1 45.5 13.82 9.0 162.4 8.12 2.9 770

AE 1770 66.5 42.9 1331 8.4 168.1 8.40 3.1 750

UV-PRC001-EN 73

Performance DataHorizontal Cfg. (D-Coil)

Table P8: HUV; 4-pipe coil with high static motorVUVSize

CoilType


075

DA 755 16.9 13.6 3.38 1.3 48.5 2.43 0.5 305

DC 740 19.2 14.7 3.83 1.6 54.4 2.72 0.6 305

DD 740 25.8 17.7 5.16 4.0 47.8 2.39 0.5 305

DE 795 29.3 19.9 5.85 5.0 57.5 2.87 0.7 335

100

DA 1085 27.8 20.8 5.57 3.8 69.0 3.45 1.1 500

DC 1055 30.7 22.3 6.15 4.5 77.4 3.87 1.3 500

DD 1055 38.5 25.9 7.69 9.7 67.7 3.39 1.0 500

DE 1005 39.2 26.1 7.84 10.0 73.3 3.66 1.2 480

125

DA 1220 34.4 25.7 6.88 6.4 80.7 4.03 1.5 470

DC 1350 40.8 29.6 8.16 8.7 99.2 4.96 2.3 525

DD 1350 46.0 32.1 9.21 5.8 86.7 4.34 1.8 525

DE 1295 47.8 32.8 9.57 6.4 96.2 4.81 2.1 525

150

DA 1445 38.1 27.7 7.63 8.7 96.5 4.83 2.3 550

DC 1715 44.7 31.6 8.93 11.6 124.8 6.24 3.8 680

DD 1715 50.9 34.2 10.17 7.8 108.9 5.45 2.9 680

DE 1635 51.8 34.5 10.37 8.3 120.6 6.03 3.5 680

200

DA 1990 48.9 36.9 9.77 13.6 120.6 6.03 3.5 790

DC 1895 53.4 38.6 10.68 15.9 134.1 6.71 4.3 770

DD 1895 60.8 41.8 12.17 10.7 116.7 5.83 3.3 770

DE 1770 63.0 42.5 12.59 11.8 127.7 6.38 3.9 750

74 UV-PRC001-EN

Performance DataH-Coil Heating

Table P9: 2-pipe coil, HW coilUnit Size Coil

TypeHeating (60 EAT, 180 EWT/140 LWT)

TMBH GPM WPD

075

H1 41.18 2.06 2.85

H2 45.12 2.26 3.36

H3 48.74 2.44 3.86

H4 53.49 2.67 0.70

H5 57.95 2.90 0.81

H6 61.84 3.09 0.91

100

H1 52.90 2.65 0.97

H2 57.98 2.90 1.15

H3 62.65 3.13 1.33

H4 71.90 3.59 1.41

H5 77.92 3.90 1.63

H6 83.19 4.16 1.84

125

H1 66.45 3.32 1.67

H2 72.85 3.64 1.98

H3 78.73 3.94 2.28

H4 90.36 4.52 2.45

H5 97.97 4.90 2.83

H6 104.61 5.23 3.19

150

H1 99.89 4.99 2.70

H2 124.35 6.22 4.03

H3 131.66 6.58 4.48

H4 108.87 5.44 3.88

H5 118.05 5.90 4.49

H6 126.08 6.30 5.05

200

H1 120.35 6.02 3.80

H2 152.05 7.60 5.84

H3 161.68 8.08 6.54

H4 132.52 6.63 5.52

H5 144.37 7.22 6.44

H6 154.87 7.74 7.32

UV-PRC001-EN 75

Performance DataX-Coil Cooling

Table P10: 2-pipe, CW cooling dataUnit Size Coil

TypeCooling (80/67 EAT, 45 EWT/55 LWT)

TMBH SMBH GPM WPD

075X1 25.20 17.50 5.04 3.80

X2 25.20 17.50 5.04 3.80

X3 25.20 17.50 5.04 3.80

100

X1 34.90 23.70 6.98 8.10

X2 34.90 23.70 6.98 8.10

X3 34.90 23.70 6.98 8.10

125X1 37.50 26.80 7.50 7.50

X2 37.50 26.80 7.50 7.50

X3 37.50 26.80 7.50 7.50

150X1 49.50 33.80 9.91 7.40

X2 49.50 33.80 9.91 7.40

X3 49.50 33.80 9.91 7.40

200X1 68.55 48.58 13.71 13.25

X2 68.55 48.58 13.71 13.25

X3 68.55 48.58 13.71 13.25

76 UV-PRC001-EN

Performance DataDK, R1, R2-Coil Cooling

Table P11: 4-pipe DK coil, CW cooling data Unit Size Coil

TypeCooling (80 EDB/67 EWB, 45 EWT/55 LWT)

TMBH SMBH GPM WPD

075

DK

16.60 13.30 3.33 1.30

100 24.70 18.30 4.94 3.10

125 34.00 24.50 6.79 6.30

150 39.40 27.70 7.87 9.20

200 45.24 33.11 9.04 11.83

Table P12: 4-pipe R1, R2 coil, CW cooling dataUnit Size Coil

TypeCooling (80 EDB/67 EWB, 45 EWT/55 LWT)

TMBH SMBH GPM WPD

075R1 25.19 17.89 5.04 3.82

R2 28.08 19.79 5.62 4.62

100R1 35.52 24.60 7.10 8.40

R2 39.29 27.12 7.86 10.04

125R1 41.75 29.61 8.35 4.85

R2 46.73 32.88 9.35 5.93

150R1 52.11 36.32 10.42 8.11

R2 58.02 40.24 11.60 9.82

200R1 62.79 44.78 12.56 11.32

R2 71.72 50.61 14.34 14.37

UV-PRC001-EN 77

Performance DataFA, R1, R2-Coil Heating

Table P13: 4-pipe FA coil, HW heating data Unit Size Coil


TMBH GPM WPD

075

FA

53.61 2.68 0.59

100 72.06 3.60 1.14

125 90.57 4.53 1.91

150 102.98 5.15 2.63

200 136.30 6.81 4.45

Table P14: 4-pipe R1, R2 coil, HW heating dataUnit Size Coil


TMBH GPM WPD

075R1 30.38 1.52 1.66

R2 36.27 1.81 2.29

100R1 38.03 1.90 0.54

R2 45.30 2.27 0.74

125R1 48.31 2.42 0.94

R2 57.62 2.88 1.30

150R1 68.42 3.42 1.36

R2 81.16 4.06 1.85

200R1 81.33 4.07 1.86

R2 96.80 4.84 2.56

78 UV-PRC001-EN

Performance DataDX-Coil Cooling

DX Coils are rated at the following conditions:

• 95 F ambient outside air temperature

• 25-feet of tubing

• 400 CFM per ton maximum

Table P15: Direct expansion cooling capacityUnit Size Condensing

unit EWB

Degrees FTMBH EDB 72 F

SMBH

EDB 76 F

SMBH

EDB 80 F

SMBH

075

TTB018

10.00 SEER

63 15.70 10.10 12.30 14.60

67 17.00 7.70 10.00 12.20

71 18.30 5.30 7.50 9.80

TTP018

12.00 SEER

63 16.40 10.40 12.70 14.90

67 17.90 8.10 10.30 12.50

71 19.40 5.70 7.90 10.10

TTP024

12.00 SEER

63 20.20 11.80 14.00 16.30

67 22.00 9.50 11.70 13.90

71 23.90 7.10 9.40 11.60

100

TTP024

12.00 SEER

63 21.20 13.80 16.80 19.80

67 23.00 10.60 13.60 16.60

71 24.90 7.30 10.30 13.30

TTB024

10.00 SEER

63 20.00 14.60 18.10 20.50

67 21.60 10.90 14.40 17.90

71 23.30 7.00 10.60 16.90

TTP030

12.00 SEER

63 25.40 16.50 19.90 23.40

67 27.60 12.90 16.30 19.80

71 29.90 9.20 12.60 16.10

125

TTB030

10.00 SEER

63 27.60 19.10 23.50 27.70

67 29.80 14.50 18.90 23.20

71 32.10 9.80 14.10 18.50

TTP030

12.00 SEER

63 27.70 17.40 21.10 24.90

67 30.00 13.40 17.20 20.90

71 32.40 9.40 13.20 16.90

TTA030

10.00 SEER

63 27.80 19.20 23.50 27.80

67 30.00 14.50 18.90 23.20

71 32.30 9.80 14.10 18.50

TTB036

10.00 SEER

63 32.40 20.90 25.20 29.50

67 34.80 16.20 20.50 24.90

71 37.30 11.50 15.80 20.10

UV-PRC001-EN 79

Performance DataDX-Coil Cooling

Table P15: Direct expansion cooling capacity (continued)Unit Size Condensing

unit EWB

Degrees FTMBH EDB 72 F

SMBH

EDB 76 F

SMBH

EDB 80 F

SMBH

150

TTB036

10.00 SEER

63 33.80 23.30 29.20 33.70

67 36.20 17.70 22.90 28.10

71 38.70 11.90 17.10 22.30

TTP036

12.00 SEER

63 34.10 22.70 27.70 31.50

67 36.80 17.40 22.40 27.40

71 39.60 12.00 17.00 22.00

TTA036

10.00 SEER

63 33.80 23.30 28.50 33.70

67 36.40 17.70 22.90 28.10

71 39.10 12.00 17.20 22.40

TTB042

10.00 SEER

63 40.50 25.90 31.00 36.20

67 43.50 20.30 25.40 30.60

71 46.60 14.60 19.70 24.90

TTP042

12.00 SEER

63 37.90 24.80 30.00 35.10

67 41.00 19.30 24.50 29.70

71 44.20 13.70 18.90 24.10

TTA042

10.00 SEER

63 40.30 25.80 30.90 36.10

67 43.50 20.30 25.40 30.60

71 46.90 14.70 19.80 25.00

200

TTP042

12.00 SEER

63 38.30 26.30 32.50 36.90

67 41.50 19.60 25.80 32.10

71 44.80 12.80 19.00 25.30

TTP048

12.00 SEER

63 44.30 29.50 36.00 42.60

67 48.00 22.50 29.00 35.60

71 51.80 15.40 21.90 28.50

TTA060

10.00 SEER

63 50.90 32.00 38.50 45.00

67 54.50 24.80 31.30 37.90

71 58.20 17.50 24.00 30.60

80 UV-PRC001-EN

Performance DataElectric Heat Coils

Table P16: Electric heat capacity

Unit Size Coil Type No of Elem Elem kW Total kW TMBH

075

F3, X3 3 1.95 5.85 19.98

E4, F4, X4 4 1.95 7.80 26.64

E6, F6, X6 6 1.95 11.70 39.96

E7 7 1.95 13.65 46.61

E9 9 1.95 17.55 59.93

100

F3, X3 3 2.60 7.80 26.64

E4, F4, X4 4 2.60 10.40 35.52

E6, F6, X6 6 2.60 15.60 53.27

E7 7 2.60 18.20 62.15

E9 9 2.60 23.40 79.91

125

F3, X3 3 3.25 9.75 33.30

E4, F4, X4 4 3.25 13.00 44.40

E6, F6, X6 6 3.25 19.50 66.60

E7 7 3.25 22.75 77.69

E9 9 3.25 29.25 99.89

150

F3, X3 3 3.80 11.40 38.91

E4, F4, X4 4 3.80 15.20 51.91

E6, F6, X6 6 3.80 22.80 77.86

E7 7 3.80 26.60 90.84

E9 9 3.80 34.20 116.79

200

F3, X3 3 3.80 11.40 38.93

E4, F4, X4 4 3.80 15.20 51.91

E6, F6, X6 6 3.80 22.80 77.86

E7 7 3.80 26.60 90.84

E9 9 3.80 34.20 116.79

UV-PRC001-EN 81

Performance DataSteam Coils

Table P17: K1, K2 coils

Unit Size Coil Type EAT TMBH5 PSIG

TMBH10 PSIG

TMBH15 PSIG

075

K1 -20 85.89 89.98 93.48

K1 0 78.94 83.04 86.54

K1 20 72.00 76.10 79.59

K1 40 65.06 69.16 72.65

K1 60 58.12 62.21 65.71

K1 70 54.65 58.74 62.24

K2 -20 101.18 106.01 110.12

K2 0 93.00 97.83 101.94

K2 20 84.82 89.65 93.77

K2 40 76.64 81.47 85.59

K2 60 68.46 73.29 77.41

K2 70 64.38 69.20 73.32

100

K1 -20 112.93 118.31 122.91

K1 0 103.80 109.19 113.78

K1 20 94.67 100.06 104.65

K1 40 85.54 90.93 95.52

K1 60 76.41 81.80 86.40

K1 70 71.85 77.24 81.83

K2 -20 158.08 165.61 172.05

K2 0 145.30 152.84 159.27

K2 20 132.52 140.06 146.49

K2 40 119.74 127.28 133.71

K2 60 106.96 114.50 120.93

K2 70 100.57 108.11 114.55

125

K1 -20 139.94 146.61 152.31

K1 0 128.63 135.30 140.99

K1 20 117.31 123.99 129.68

K1 40 106.00 112.68 118.37

K1 60 94.69 101.36 107.06

K1 70 89.03 95.71 101.40

K2 -20 164.93 172.79 179.50

K2 0 151.60 159.46 166.17

K2 20 138.26 146.13 152.84

K2 40 131.78 132.80 139.51

K2 60 111.60 119.47 126.18

K2 70 104.93 112.80 119.51

82 UV-PRC001-EN

Performance DataSteam Coils

Notes:• Condensate trap for the steam coil option is field installed.

• Static pressure for the K1, K2 options should be modeled after the H1-coil option.

• Steam coils that function at 5 psig or less should not utilize valve control. Valve control may starve the coil, causing stratification.

Table P17: K1, K2 coils (continued)Unit Size Coil Type EAT TMBH

5 PSIGTMBH

10 PSIGTMBH

15 PSIG

150

K1 -20 166.93 174.89 181.68

K1 0 153.44 161.40 168.19

K1 20 139.94 147.90 154.70

K1 40 126.45 134.41 141.20

K1 60 112.96 120.92 127.71

K1 70 106.21 114.17 120.96

K2 -20 243.70 256.14 263.74

K2 0 224.72 236.38 246.33

K2 20 204.96 216.62 226.57

K2 40 185.20 196.86 206.80

K2 60 165.43 177.09 187.04

K2 70 155.55 167.21 177.16

200

K2 -20 286.51 306.05 317.93

K2 0 266.20 282.43 294.32

K2 20 244.09 258.82 270.71

K2 40 221.28 235.21 274.09

K2 60 197.66 211.59 223.48

K2 70 185.86 199.79 211.67

UV-PRC001-EN 83

Performance DataDK, FK Steam Coils

84 UV-PRC001-EN

Table E1: Minimum Circuit Ampacity (MCA) for Electric Heat Coils with Standard Motors

Unit Size No of ElemCoilkW

208V1ph

240V1ph

277V1ph

208V3ph

240V3ph

480V*3ph

075

3

5.85 36.49 31.63 27.40 21.66 18.77 9.38100 7.8 48.21 41.78 36.20 28.43 24.64 12.32

125 9.75 60.32 52.28 45.29 35.59 30.85 15.42150 11.4 70.23 60.87 52.87 52.74 41.33 35.82

17.91 11.4 72.35 62.70 54.33 43.44 37.65 18.82

075

4

7.8 48.21 41.78 36.20 32.34 28.03 14.01100 10.4 63.83 55.32 47.93 42.67 36.98 18.49125 13.0 79.85 69.20 59.96 53.40 46.28 23.14

150 15.2 93.07 80.66 69.89 62.14 53.86 26.93200 15.2 95.19 82.49 71.48 64.26 55.69 27.85075

6

11.7 NA 62.09 53.80 41.98 36.38 18.19

100 15.6 NA 82.41 71.40 55.52 48.12 24.06125 19.5 NA 103.06 89.29 69.46 60.20 30.10150 22.8 NA 120.24 104.18 80.93 70.14 35.07

200 22.8 NA 122.08 105.77 83.04 71.97 35.98075

7

13.65 NA NA 62.60 52.41 45.43 22.71100 18.2 NA NA 83.13 69.44 60.18 30.09

125 22.75 NA NA 103.96 86.86 75.28 37.64150 26.6 NA NA 121.33 101.27 87.76 43.88200 26.6 NA NA 122.92 103.38 89.60 44.80

075

9

17.55 NA NA NA 62.30 53.99 27100 23.4 NA NA NA 82.62 71.60 35.80125 29.25 NA NA NA 103.33 89.55 44.78

150 34.2 NA NA NA 120.53 104.46 52.23200 34.2 NA NA NA 122.64 106.29 53.15

For Trane Controls, add the following values to determineTOTAL MCA

Volts Amps120 0.94

208 0.55

240 0.48

277 0.41

480 0.41

Electrical Data Minimum Circuit Ampacity

UV-PRC001-EN 85

Table E2: Minimum Circuit Ampacity (MCA) for Electric Heat Coils with High Static Motors

For Trane controls, add the following values to determine TOTAL MCA

Unit Size No of ElemCoilKW

208V1ph

240V1ph

277V1ph

208V3ph

240V3ph

480V*3ph

075

3

5.85 38.74 33.58 29.09 23.91 20.72 10.36100 7.8 50.46 43.73 37.89 30.68 26.59 13.30

125 9.75 63.67 55.18 47.81 38.94 33.75 16.87150 11.4 73.58 63.77 55.25 44.67 38.72 19.36200 11.4 74.13 64.25 55.67 45.23 39.20 19.60

075

4

7.8 50.46 43.73 37.89 34.59 29.98 14.99100 10.4 66.09 57.28 49.63 44.93 38.94 19.47125 13.0 83.20 72.10 62.47 56.75 49.18 24.59

150 15.2 96.42 83.56 72.40 65.49 56.76 28.38200 15.2 96.97 84.04 72.82 66.04 57.24 28.62075

6

11.7 NA 64.05 55.49 44.23 38.33 19.17

100 15.6 NA 84.36 73.09 57.78 50.07 25.04125 19.5 NA 105.96 91.81 72.81 63.10 31.55150 22.8 NA 123.15 106.70 84.27 73.04 36.52

200 22.8 NA 123.63 107.11 84.83 73.52 36.76075

7

13.65 NA NA 64.29 54.67 47.38 23.69100 18.2 NA NA 84.82 71.70 62.14 31.07

125 22.75 NA NA 106.47 90.21 78.18 39.09150 26.6 NA NA 123.84 104.61 90.67 45.33200 26.6 NA NA 124.26 105.17 91.14 45.57

075

9

17.55 NA NA NA 64.55 55.95 27.97100 23.4 NA NA NA 84.87 73.56 36.78125 29.25 NA NA NA 106.68 92.46 46.23

150 34.2 NA NA NA 123.87 107.36 53.68200 34.2 NA NA NA 124.43 107.84 53.92

Volts Amps120 0.94

208 0.55

240 0.48

277 0.41

480 0.41

Electrical Data Minimum Circuit Ampacity

86 UV-PRC001-EN

Control Wiring Field Installed Controls

UV-PRC001-EN 87

Control WiringElectric Heat

88 UV-PRC001-EN

Control WiringEnd Device Controls

UV-PRC001-EN 89

Control WiringPneumatic 2-Pipe Room

90 UV-PRC001-EN

Control WiringPneumatic 4-Pipe Zone

UV-PRC001-EN 91

Control WiringTracer ZN520-208V

92 UV-PRC001-EN

Control WiringTracer ZN520 w/E-heat

UV-PRC001-EN 93

Control WiringTUC-Standalone

94 UV-PRC001-EN

Control WiringTUC-ICS

UV-PRC001-EN 95

Control WiringTUC-with Electric Heat

96 UV-PRC001-EN

Control WiringTUC-with Reheat

UV-PRC001-EN 97

Dimensional DataVUV-15 1/4" Depth

Unit Size No of Fans

A B

075 2 69" 42"

100 3 81" 54"

125 4 93" 66"

150 5 105" 78"

98 UV-PRC001-EN



A B

075 2 69" 42"

100 3 81" 54"

125 4 93" 66"

150 5 105" 78"

UV-PRC001-EN 99



A B

075 2 69" 42"

100 3 81" 54"

125 4 93" 66"

150 5 105" 78"

100 UV-PRC001-EN

Dimensional DataVUV-Ducted Inlet


A B

075 2 69" 42"

100 3 81" 54"

125 4 93" 66"

150 5 105" 78"

UV-PRC001-EN 101

Dimensional DataVUV-Ducted Inlet/Discharge


A B

075 2 69" 42"

100 3 81" 54"

125 4 93" 66"

150 5 105" 78"

102 UV-PRC001-EN

Dimensional DataVUV-Dynamic Air

Unit Size

No of Fans

A B C

075 2 69" 42" 42 1/2"

100 3 81" 54" 54 1/2"

125 4 93" 66" 66 1/2"

150 5 105" 78" 78 1/2"

UV-PRC001-EN 103

Dimensional DataVUV-End Covers

104 UV-PRC001-EN

Dimensional DataCrossover Pipe-1 3/8" O.D.

UV-PRC001-EN 105

Dimensional DataCrossover Pipe-2 1/8" O.D.

106 UV-PRC001-EN

Dimensional DataHUV-Ducted Front Discharge

Size A B C D

075 70 1/4" 36" 46" 43 1/4"

100 82 1/4" 48" 58" 55 1/4"

125 94 1/4" 60" 70" 67 1/4"

150 106 1/4" 72" 82" 79 1/4"

Unit Sizes 075-150

UV-PRC001-EN 107

Dimensional DataHUV-Ducted Front Discharge

Unit Size 200

108 UV-PRC001-EN

Dimensional DataHUV-Bottom Double Deflection Discharge

Size A B C D

075 70 1/4" 36" 46" 43 1/4"

100 82 1/4" 48" 58" 55 1/4"

125 94 1/4" 60" 70" 67 1/4"

150 106 1/4" 72" 82" 79 1/4"

Unit Sizes 075-150

UV-PRC001-EN 109

Dimensional DataHUV-Bottom Double Deflection Discharge

Unit Size 200

110 UV-PRC001-EN

Dimensional DataHUV-Inlet Arrangements

UV-PRC001-EN 111

Dimensional DataInlet Arrangements

112 UV-PRC001-EN

Dimensional DataHUV-Drain Pan Connection

Unit Size A

075-150 25 1/2"

200 34 3/4"

UV-PRC001-EN 113

Dimensional DataVUV-RH Drain Pan Connection

114 UV-PRC001-EN

Dimensional DataVUV-LH Drain Pan Connection

UV-PRC001-EN 115

Dimensional DataERS-Energy Recovery Unit Vent

116 UV-PRC001-EN

Dimensional DataSWE-Side Wall Power Exhaust

UV-PRC001-EN 117

Size A B C

050 30 1/8" 29 7/8" 7 3/4"

075 42 1/8" 41 7/8" 13 3/4"

100 54 1/8" 53 7/8" 16 3/4"

125 66 1/8" 65 7/8" 19 3/4"

150/200 78 1/8" 77 7/8" 22 3/4"

Dimensional DataGravity Relief Damper

118 UV-PRC001-EN

Dimensional DataShelving-Open or Closed

A Type Available

2’ Open

3’ Open & Closed

4’ Open & Closed

5’ Open & Closed

UV-PRC001-EN 119

A Type Available

3’ Open & Closed

4’ Open & Closed

5’ Open & Closed

Dimensional DataShelving-with Grille

120 UV-PRC001-EN

Dimensional DataShelving

UV-PRC001-EN 121

Dimensional DataWall Boxes-Horizontal Louver

122 UV-PRC001-EN

Dimensional DataWall Boxes Vertical Louver

UV-PRC001-EN 123

Dimensional DataWall Box-Vertical Louver

124 UV-PRC001-EN

AccessoriesSensors

Sensor Part Number Available onX13510606020 Option 7 (2-spd) or 9 (1-spd)

• Wall mounted sensor with ex-ternal adjusting temperature wheel.

• Thermostat Override (TOV) and Cancel

• The single or 2-speed fan switch is unit mounted on the class-room unit ventilator

• TUC• ZN520

X13510618010Option T (A,H,D,K,R coils)



• Fan switching includes HIGH-LOW-AUTO-OFF (2-speed)

• ZN520

X13510621010Option A (E,F,X coils)



• Fan switching includes RUN-OFF (1-speed)

• TUC• ZN520

X13510622010Option B (A,H,D,K,R coils)



• Fan switching includes HIGH-LOW-OFF (2-speed)

• TUC• ZN520

X13510627010Option 8 (A,H,D,K,R coils)

• Wall mounted sensor with inter-nal adjusting temperature wheel.


• The 2-speed fan switch is unit mounted on the classroom unit ventilator

• TUC• ZN520

UV-PRC001-EN 125

AccessoriesSensors

Sensor Part Number Available onX13510631010 Option D (A,H,D,K,R coils)


• Fan switching includes HIGH-LOW-OFF (2-speed)

• TUC• ZN520

X13510635010Option U (E,F,X coils)



• Fan switching includes AUTO-OFF (1-speed)

• ZN520

X13511045010Option V (A,H,D,K,R coils)




• ZN520

X13511046010Option W (A,H,D,K,R coils)



• ZN520

X13511047010Option X (E,F,X coils)


• Fan switching includes AUTO-OFF (1-speed)

• ZN520

126 UV-PRC001-EN

ShelvingTrane’s classroom shelving is composed of four different styles. These styles include:

• A shelving unit (open or closed)

• A piping compartment

• A cut-to-fit-filler

• Formica® laminate tops

The shelving unit(s) are made of 16-gauge paint grip galvanized steel. Each piece is finished with a baked-on, industrial grade powder paint with a coordinating selection of colors to match the classroom unit ventilator. All selections are equipped with leveling legs for proper mating to the classroom unit ventilator. For units that in-clude the dynamic air option, a floor spacer will be installed at the back of the shelving unit in order to block air flow under the unit. See shelving model number, page 51 for complete selection.

The Formica top is a 1-inch particle board, finished with a choice of Formica laminate to compliment and coordinate with the finish available on the metal shelving units. The laminate is available in sectional or continuous lengths for an esthetically pleasing appear-ance.

Each shelving component ships from the factory with a standard set of installation hardware to help minimize the need for field sup-plied components. Note: See shelving installation instructions UV-SVN001-EN for more informa-tion.

AccessoriesShelving

Open ShelvingThe open shelving design is avail-able in 2, 3, 4 and 5-feet lengths. Shelving depth includes 15 1/4-inch or 21 1/4-inch. The units are equipped with adjustable shelves that are reinforced with a formed channel for maximum strength.

Closed ShelvingThe closed shelving design is avail-able in 3, 4 and 5-feet lengths. Shelving depth includes 15 1/4-inch or 21 1/4-inch. The units are equipped with adjustable shelves that are reinforced with a formed channel for maximum strength. Closed shelving doors are equipped with two locks as stan-dard.

Cut-to-Fit FillerThe cut-to-fit filler piece may be ap-plied to fit smaller spaces. The filler is available in an 18-inch or 36-inch length, but may be cut-to-fit an area as small as 4-inches. The fill-in section has a removable front pan-el to allow access to piping or elec-trical connections.

Piping CompartmentThe piping compartment shelving is manufactured from 18-gauge cabinet steel and painted in deco-rator colors. The compartment is equipped with a metal top, leveling legs and a locking front panel. It is a standalone piece that is best suit-ed for housing piping equipment for units.

Formica Laminate TopThe laminate top selection is avail-able in 12-decorator colors. It may be cut-to-fit the shelving selection, or ordered as a standalone piece (up to 12-feet). The laminate top is available with or without a grille.

UV-PRC001-EN 127

AccessoriesERS, SWE and Wall boxes

Sidewall Power ExhaustThe sidewall power exhaust is pro-vided with a cabinet and an ex-haust damper. The cabinet is constructed of 16-gauge steel with adjustable leveling legs at four corners to match-up with the classroom unit ventilator. A re-movable front panel is secured by three camlock fastener. The cabi-net is coated with an appliance grade powder paint finish in the same selectable colors as the classroom unit vent. The exhaust unit provides nominal 500 (single fan system) or 750 CFM (dual fan system) with a 2-speed switch. All motors are 115/60/1 voltage and fan(s) are direct drive. See page 116 for dimensional data.

Gravity Relief DamperThe gravity relief damper is baro-metrically operated. It contains aluminum blades that are de-signed to be used with the class-room unit ventilator. The dampers are typically located in a plenum or behind shelving. Dampers can be ordered with an optional wall box. See page 117 for dimensional da-ta.

Pipe CoverThe pipe cover assembly consists of the pipe enclosure, mounting strip, and pipe hangers. The enclo-sure is constructed from 18-gauge steel that is locked to the mounting strip without visible fasteners. The mounting strip is a continuous, roll formed 20-gauge steel and con-tains a full length channel for the enclosure and pipe hangers. The pipe hangers are .148-inch in di-ameter, zinc-plated steel wire. They are designed to support up to two, 2 1/8-inch O.D. insulated pipes. See page 120 for dimen-sional data.

Wall Boxes

The wall box accessory provides a year-round outdoor air intake di-rectly to the unit ventilator, side-wall exhaust, or energy recovery system through an exterior wall.

Wall boxes are constructed of heavy gauge aluminum and de-signed to last the life of the build-ing. Internal parts are interlocked, in addition to being held securely in place by the frame-within-a-frame design. This assures proper louver alignment. The wall box frame is formed by four extruded aluminum channels. The corners are secured by screws to provide right angle corners. Louvers are stacked vertically, and held in posi-tion by an integral spacing guide. The boxes are available with an anodized aluminum finish, or a baked enamel finish. The wall box arrangements are furnished with a diamond pattern expanded alumi-num bird screen to eliminate trash from blowing into the building. The grilles are aluminum, and the same finish as the frame.

ERS-Energy Recovery SystemThe Trane energy recovery system allows up to 500 cfm of outside

air to be brought into the space without putting a large ventilation load on the unit ventilator system. The unit may be controlled through a TUC, ZN520 or a 24V binary signal. The cabinet is made of 16-gauge galvanized steel with the same finish as the classroom unit ventilator. The fans are of the double-inlet, forward-curved centrifugal variety. They are equipped with a 3-speed switch for air balancing. The air-to-

air heat exchanger is constructed to allow two separate air streams in a counter-flow direction. The matrix of this heat exchanger prevents

less than 1-percent of cross contamination between the airstreams.

128 UV-PRC001-EN

MechanicalSpecifications

GeneralThe classroom unit ventilator shall be certified for ventilation at ARI 840 or tested by an independent testing and balancing lab wit-nessed by owner’s representative. All non-ARI manufacturers shall be within 10 percent of catalog air-flow and capacities, or removal of these units from the jobsite may be required at the expense of the manufacturer or contractor.

CabinetCabinetry shall be16-gauge furni-ture quality steel, with exposed edges rounded. A 16-gauge re-movable front panel with quick-acting, key operated camlocks shall be provided for service or maintenance access. Steel bar dis-charge grilles shall be welded in place as an integral part of unit structure. Internal parts and sur-faces exposed to conditioned air stream shall be insulated with moisture resistant insulation.

Piping and control end pockets shall be a minimum of 12-inches wide to facilitate piping and ser-vice. If standard end pocket is less than 12-inches wide, an extended cabinet unit shall be provided.

Cabinet insulation shall be 1/2-inch thick dual density bonded glass fiber. The exposed side shall be a high density erosion proof material suitable for use in air-streams up to 4500 feet per minute (FPM). Insulation shall meet the following Underwriters’ Laborato-ries Fire Hazard Classification:

• Flame Spread = 20

• Fuel Contributed = 15

• Smoke Developed = 0

Cabinet accessories shall include a matching steel construction, rein-forced for use with unit ventilators. Steel alignment pins, adjustable leveling bolts, shelves and option-

al sliding doors, kickplate, and wall filler sections as required.

Access for inspection and cleaning of the unit drain pan, coils and fan section shall be provided. The unit shall be installed for proper ac-cess. Procedures for proper ac-cess, inspection and cleaning of the unit shall be included in the maintenance manual.

Final finish shall be applied by an electrostatic powder spray sys-tem, with a minimum thickness of 1.5 mil with no visible run marks. Each unit is supplied in one of sev-en decorator colors as selected by the architect.

Fan Board AssemblyThe unit ventilator fan board as-sembly shall be a single, rigid as-sembly made from corrosion resistive material. It shall include the fans, fan housings, bearings, fan shaft and motor. The fan motor shall be mounted on the fan board.

MotorsThe motors shall be a single speed permanent split capacitor with thermal overload protection. A multiple tap auto transformer is wired to the motor to provide dif-ferent rpm settings and to ensure rated capacity with all coil combi-nations. The motor shall also be provided with a quick-disconnect plug and permanently lubricated bearing.

FansFans shall be centrifugal forward-curved double width, double-inlet corrosion resistant galvanized wheels, statically and dynamically balanced, direct driven. Fans shall be in the blow-through configura-tion.

Hydronic Coil and Drain PansAll hydronic coils shall be plate-fin type and manufactured by the unit ventilator manufacturer. All hy-

dronic coils shall be hydrostatical-ly tested to 350 psi and burst tested to 450 psi. The coils shall be rated in accordance with ARI 440 or 220.

The standard four pipe heating coil shall be in the preheat location. Optional four pipe heating coils shall have the heating coil in the reheat position so that it can be controlled for dehumidification.

A drain pan shall be provided un-der the cooling coil, with drain connection. The drain pan shall be easily removable for cleaning. The drain pan shall be constructed of corrosion resistant material, or galvanized steel and insulated to prevent sweating. The bottom of the drain pan shall be sloped in two planes which pitches the con-densate to the drain connection. The drain pan, when the unit is in-stalled and trapped per the manu-facturers installation manual, shall be designed to leave puddles no more than 2-inch in diameter and no more than 1/8-inch deep no longer than 3 minutes following step 3 of the following test. The test steps are:

1. Temporarily plug the drain pan.

2. Fill the drain pan with 1/2” of water or the maximum allowed by the drain pan depth, whichever is smaller.

3. Remove the temporary plug.

Electric CoilUnits equipped for electric heat shall have a heating element con-sisting of special resistance ele-ments inserted in an extended surface fin-tube bundle for maxi-mum element life and safety. Units equipped for electric heat shall in-clude, as standard, a high temper-ature cutout with a continuous sensing element. This device inter-rupts electrical power whenever

UV-PRC001-EN 129

excessive temperatures are sensed anywhere along the leaving side of the coil. A contactor shall also be included as standard to ensure positive disconnect of electric power whenever fan motor power is interrupted. A dead front switch shall also be provided by the manufacturer to disconnect power when the access panel is opened. All electric units shall have a power wiring console in the right hand end pocket to facilitate field wiring of the unit.

Refrigerant CoilsDirect expansion coils shall con-tain copper tubes mechanically ex-panded into evenly spaced aluminum fins. All coils are to be proof and leak tested. The proof test must be performed at 1.5 times the maximum operating pressure and the leak test at the maximum operating pressure. In addition, the tubes are to be com-pletely evacuated of air to check for leaks in a vacuum.

The refrigerant coil distributor as-semblies shall be Venturi or orifice style with round copper distributor tubes. Distributors shall be sized consistently with capacity of coil. Suction headers shall be fabricat-ed from round copper pipe.

A thermostatic expansion valve (TXV) shall be factory selected and installed for a wide range of con-trol to maintain optimum control of superheat.

Refrigerant access ports shall be factory supplied on high and low side for easy refrigerant pressure or temperature testing.

Steam Heating CoilsThe steam coil shall be a 5/8-inch design sigma-flow, tube-in-tube distributing coil. All steam coil copper tubing shall be mechani-cally expanded into evenly spaced

aluminum fins. The supply and re-turn connections shall be on the same side with a 1-inch female pipe thread (FPT) termination. The coil shall be pitched to provide condensate drainage for freeze protection.

Fresh Air / Return Air DampersThe classroom unit ventilator shall be equipped with a dual blade mixing damper with a compress-ible seal to ensure proper modula-tion and mixing of the return and outdoor air. The damper shall be capable of varying proportion of mixed air from 100 percent room air to 100 percent outside air. On floor mounted units, an ultra low leak damper seal made of closed cell EPDM material shall be provid-ed. Leakage shall be less than 1 percent against 0.5 inches external static pressure.

Damper shall contain a continuous divider placed between the damp-er blades to separate the fresh air and return air compartments to prevent blow-through.

Bypass DamperThe face and bypass damper shall be of aluminum and insulated for sound attenuation to prevent for-mation of condensate. Dampers shall be tightly sealed and de-signed to minimize heat pickup in bypass.

Field Installed ControlsClassroom unit ventilators that contain field installed controls shall be operated with automatic controls provided by the control contractor and installed in the field.

Pneumatic ControlsThe pneumatic package shall in-corporate a heat/cool changeover mode for 4-pipe and 2-pipe heat/cool options. The pneumatic con-troller shall be factory furnished

and mounted for operation of the classroom unit ventilator. The unit shall be U.L. listed. The following options shall be provided to work with the pneumatic controller.

• Valve control

• Face and bypass control

• Night setback

• Morning warm-up

• Low limit thermostat

Direct Digital ControlsFactory mounted direct digital controls shall contain a Comm 4 or a Comm 5 communication proto-cal. Both communication proto-cals shall be capable of combining HVAC and building management into one comfort system. The di-rect digital controls shall be facto-ry commissioned to include wiring, configuration and testing for the system selected. The unit shall be ready for hook-up to a building automation system at hardware set-up. The following options shall be selectable with DDC controls:

• Valve control


• Economizer

• Dehumidification

• Water temperature sensor

• Night setback

• Morning warm-up


• Mixed air and discharge sens-ing

• Fan, filter status switch

• Timed override

• Integrated ComfortTM system capabilities


130 UV-PRC001-EN

End Device ControlsAn end device control option shall utilize factory selected control components to allow other control vendors to easily interface with a classroom air conditioning unit. The factory supplied components shall be installed in the unit venti-lator and wired to a terminal strip before shipment. The following options shall be selectable with end device controls:

• Valve control



• 24 volt transformer

• Fan start/stop relay

• 10 pole terminal block for field hook-up

FiltersEach unit shall be equipped with a single 1-inch thick, throwaway or permanent, filter accessible with-out removal of the unit front panel.

Units that contain a dynamic air option, shall provide access to the filters through the unit front panel. See page 38 for filter location.

Shelving and AccessoriesUnit ventilator shelving shall be manufactured from 16-gauge cab-inet steel and painted in decorator colors as specified by the architect. Shelving shall be equipped with adjustable shelves reinforced with a formed channel for maximum strength. Closed shelving doors shall be equipped with a locking device.

The unit ventilator shelving shall be equipped with a decorative and protective FormicaTM tops avail-able in twelve colors. Shelving op-tions shall include:

• Matching grilles

• Dynamic air barrier shelving

• Cut-to-fit filler section

• Piping compartment

Shelving shall be equipped with leveling legs and hardware re-quired to mate-up with the class-room unit ventilator.

Sidewall Power ExhaustA sidewall power exhaust shall be provided with a cabinet similar to the unit ventilator. The cabinet shall be constructed of 16-gauge steel with adjustable leveling legs at four corners. The front panel shall be constructed of 16-gauge steel and secured by three cam-lock fasteners. The exhaust unit shall provide a nominal 500 or 750 cfm with a two speed switch. All motors shall be 115/60/1 voltage with direct drive fan(s).

Energy Recovery UnitThe energy recovery heat ex-changer shall be constructed to have two separate air streams flowing in counter flow configura-tion. The heat exchanger shall have a minimum effectiveness of 75 percent enthalpy energy ex-change. Sensible energy only heat recovery is not acceptable.

Energy recovery heat exchanger shall be maintenance free and rat-ed for the life of the unit. Units uti-lizing rotating wheel heat exchanger design shall have a self-adjusting belt drive and motor(s) with permanently lubricated bear-ings.

Units shall not require a defrost heater for operation with outside air temperatures above the frost threshold temperature dependent on the winter room relative humid-ity (RH) of:

1. 5 degrees F at 30% RH.



Units provided with outside air

damper must have factory mount-ed damper actuator.

Units without electric defrost shall receive power from space me-chanical air conditioning unit for all unit functions including fan mo-tors and controls. Energy recovery units with separate power source shall include warning labels indi-cating that more than one discon-nect is required to disable all power to air conditioning units

The units shall be interlocked with space mechanical air conditioning units to ensure space ventilation during all occupied periods.

Wall boxesTrane wall boxes shall provide year-around moisture free, out-door air intake directly to the unit ventilator through the exterior classroom wall. Wall boxes shall be available in six standard ar-rangements to meet installation requirements on virtually any type of building construction.

All Trane wall boxes shall be con-structed of extremely heavy gauge material and designed to last the life of the building. Internal parts shall be interlocked in addition to being held securely in place by the frame-within-a-frame design. This assures proper louver alignment. In addition, the strength of the ver-tical louver design shall simplify installation by eliminating the need for a lintel. Wall boxes shall contain a 1/2-inch square mesh galvanized screen on the inside of the louver.

Gravity Relief DampersThe gravity relief dampers shall be barometrically operated, alumi-num bladed designed to be used with each Trane unit ventilator. The gravity relief damper shall be provided with optional wall boxes.


UV-PRC001-EN 131

Horizontal Configuration

The horizontal unit ventilator is a ceiling hung air-conditioner. It can ei-ther be totally exposed, partially recessed or completely hidden. The unit is constructed of 16-gauge zinc coated steel. Each unit contains two end pockets which are easily accessible and provide field hook-up to piping and controls. The unit fan board is made of 14-gauge corrosive resistant galvanized metal. All cooling specified units contain a non-corrosive, positively sloped drain pan that is removable for cleaning purposes.

Since The Trane Company has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice.

Literature Order Number UV-PRC001-EN

Date August 2001

Supersedes UV-DS-1-11-97

Stock Location La CrosseThe Trane Company An American Standard Companywww.trane.com

For more information, contactyour local district office oremail us at [email protected]

Documents

Trane HUV and · PDF fileTrane HUV and VUV Classroom Unit ... Power Supply 24 VAC ... The face and bypass option con-sist of an actuator, damper blade and 2-position water valve (op-tion)