Trane HUV Installation Operation & Maintenance

UV-PRC001-EN

Trane HUV and VUV

Classroom Unit Ventilators

Horizontal and Vertical

Classroom Unit Ventilators

2 UV-PRC001-EN

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:

• Tracer

TM

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

UV-PRC001-EN 3

Contents

Introduction

Features and Benefits

Options

Coil Types

Piping and Valves

Controls

Application Considerations

Selection Procedure

How to Select

Glycol Adjustment Factors

Model Number Description

General Data

Performance Data

Sound Performance Data

A-Coil/D-Coil Data

H-Coil Data

X-Coil Data

DK, R1, R2 Cooling Coil Data

FA, R1, R2 Heating Coil Data

DX Coil Data

Electric Heat Coil Data

K1, K2 Steam Coil Data

DK, FK Steam Coil Data

Electrical Data

Control Wiring

Dimensions and Weights

Accessories

Sensors

Unit Accessories

Mechanical Specifications

2

4

8

15

23

35

45

49

51

59

67

68

74

75

76

77

78

80

81

83

84

86

97

124

126

128

4 UV-PRC001-EN

Features and

Benefits

Configuration

The 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.

Cabinet

The 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 Panels

The 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 Pockets

The 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 Pan

The 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.

Fanboard

The 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 Motor

The 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

UV-PRC001-EN 5

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.

Filter

Standard 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 Dampers

Trane 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 W

Holding: 1 W

Tranformer

Sizing

5 VA (class 2-power source)

Overload

Protection

Electronic throughout 0 to

95-degree rotation

Control Signal 2 to 10 VDC

3-point floating with Trane controls

Angle of

Rotation

Maximum 95-degree

Adjustable 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

Features and

Benefits

Figure 4: Sampling chamber

Figure 5: Vertical filter removal

Figure 6: OA/RA splitter

and seal

6 UV-PRC001-EN

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-degree

Adjustable 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

Features and

Benefits

Figure 7: Horizontal with face

and bypass

Figure 8: Actuator mounting

locations (vertical)

Figure 9: Actuator mounting

locations (horizontal)

UV-PRC001-EN 7

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 Design

A 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.

Features and

Benefits

Blow-thru Design

A 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) conditions

Outside Air

Temperature

Percent Outside Air

16-2/3 20 25 33-1/2 50

-10 Degree 56.80 54.00 50.00 43.40 30.00

0 Degree 58.50 56.00 52.50 46.80 35.00

10 Degree 60.10 58.00 55.00 50.00 40.00

20 Degree 61.90 60.00 57.60 53.40 45.00

8 UV-PRC001-EN

Varying Coil Combinations

By 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 Types

Single Coil Module Coupled Coil Module

Main/Auxiliary Coils are

opposite End Connections

AA, AB, AC, AD, AE

Combination hot water/cold water coil

DA, DC, DD, DE

Cold water/preheat hot water coil

H1, H2, H3, H4, H5, H6

Hot water ONLY coil

DK

Cold water/preheat steam coil

K1, K2

Steam ONLY coil

X3, X4, X6

Cold water/preheat electric heat coil

E4, E6, E7, E9

Electric heat ONLY coil

FA

Refrigeration/preheat hot water coil

F0

Refrigeration ONLY coil

FK

Refrigeration/preheat steam coil

F3, F4, F6

Refrigeration/preheat electric heat coil

R1, R2

Cold water/reheat hot water coil

Figure 10: Typical header

assembly

Drain

Air Vent

Plug

UV-PRC001-EN 9

Hydronic Main Coils

All 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) data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Cooling

(main)

Rows

Heating

(main)

Face

&

Bypass

HW/CW

Main

Changeover

Coil

AA 12 2 2

H&V

AB 16 2 2

AC 12 3 3

AD 12 4 4

AE 16 4 4

HW ONLY

Main

Coil

H1 12 0 1

H&V

H2 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

075-200075-200

Table 6: Coupled coil (4-pipe) data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Cooling

(main)

Face

&

Bypass

CW-Main

HW-Preheat

Auxiliary

Coil

DA

075-200

12 2

H&V

DC 16 2

DD 12 3

DE 16 3

CW-Main

E-Heat-Aux.

Coil

X3-X6

075-100 12 3

Not

Available

125 16 2

150 12 3

200 16 3

CW-Main

Steam-Aux.

Coil

DK 075-150 12 3 Not

Available

DK 200 12 3

CW-Main

HW (reheat)-

Aux. Coil

R1 075-200 12 3 Not

Available

R2 075-200 16 3

10 UV-PRC001-EN

Hydronic Auxiliary Coils

All 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 data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Heating

(Aux.)

Face

&

Bypass

CW-Main

HW-Preheat

Aux. Coil

DA

075-200

12

1 H&V

DC 16

DD 12

DE 16

HW ONLY

Main

Coil FA

075-150

12

1

Not

Available

200 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 data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Heating

(Aux.)

Face

&

Bypass

CW-Main

HW (reheat)-

Aux. Coil

R1 075-200 12 1 Horiz

ONLY

R2 075-200 16 1

Figure 12: Auxiliary PREHEAT coil header sizing for 4-pipe

systems. (Right hand configuration shown.)

UV-PRC001-EN 11

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

Table 9: Single coil (2-pipe) data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Heating

(main)

Face

&

Bypass

Steam only-

Main Coil

K1 075-150 8 1

H&V

K2 075,125 10 1

K2 100 13 1

K2 150-200 14 1

12 UV-PRC001-EN

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 data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Heating

(Aux.)

Face

&

Bypass

CW-Main

Steam

(preheat)

Aux. Coil

DK

075,125 11

1 Not

Available

100 12

150-200 14

DX-Main

Steam

(preheat)

Aux. Coil

FK

075,125

11

1

Not

Available

100 12

150-200 14

Figure 15: Auxiliary steam coil header sizing. (Right

hand configuration shown.)

Indicates air flow

UV-PRC001-EN 13

Electric Heat Coils

Electric Coils

Electric 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.)

14 UV-PRC001-EN

Direct Expansion Main Coils

All 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.

Table 11: Single coil (4-pipe) data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Cooling

(Main)

Face

&

Bypass

DX-Main

E-heat

(preheat)

Aux. Coil

F3-F6

075-150 12

1 Not

Available

200 14

Figure 18: Main DX coil header sizing. (Only available with left

hand configuration)

Indicates air flow

Table 12: Single coil (4-pipe) data

Coil

Description

Coil

Type

Unit

Size

Fins per

inch FPI

Rows

Cooling

(Main)

Face

&

Bypass

DX-Main

Coil FO

075-150 12

2 Not

Available

200 14

DX-Main

HW

(preheat)

Aux. Coil

FA

075-150

12

2

Not

Available

200 14

Thermal Expansion Valve

All 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

UV-PRC001-EN 15

Coil Control Valve

Chilled 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-Way

Water Valves

2

GPM

3

GPM

4

GPM

5

GPM

6

GPM

7

GPM

8

GPM

9

GPM

10

GPM

11

GPM

12

GPM

13

GPM

14

GPM

15

GPM

16

GPM

17

GPM

18

GPM

19

GPM

20

GPM

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)

Piping

Coil Valve Control

Actuator

Control 3-Point Modulating

Electrical 24 VAC, 60 HZ

Stroke 110 seconds

Ambient 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 threaded

Static Pressure 400 PSI

Close-off

Pressure

1.8 Cv = 80 psig

4.6 Cv = 45 psig

Temperature Water 200 F Max.

Actuator

Control 3-Point Modulating

Electrical 24 VAC, 60 HZ

Stroke 50 seconds

Ambient 140 F at 95% relative

humidity

2-Way Control Valve (3-Point Modulating)

3/4-inch FNPT; 7.3 Cv (Digit 16/17 = H)

Valve Body

Connections 3/4-inch threaded

Static Pressure 400 PSI

Close-off

Pressure

75 psig

Temperature Water 200 F Max.

16 UV-PRC001-EN

Piping

Coil Valve Control

Actuator

Control 3-Point Modulating

Electrical 24 VAC, 60 HZ

Stroke 95 seconds

Ambient 140 F at 95% relative

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 PSI

Close-off

Pressure

1.8 Cv = 345 psig

4.6 Cv = 216 psig

7.3 Cv = 138 psig

Actuator

Control 3-Point Modulating

Electrical 24 VAC, 60 HZ

Stroke 50 seconds

Ambient 140 F at 95% relative

humidity

3-Way Control Valve (3-Point Modulating)

3/4-inch FNPT; 7.3 Cv (Digit 16/17 = R)

Valve Body

Connections 3/4-inch threaded

Static Pressure 400 PSI

Close-off

Pressure

75 psig

Temperature Water 195 F Max.

Actuator

Control 3-Point Modulating

Electrical 24 VAC, 60 HZ

Stroke 110 seconds

Ambient 140 F at 95% relative

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

Connections 1/2-inch threaded

Static Pressure 400 PSI

Close-off

Pressure

1.8 Cv = 80 psig

4.6 Cv = 45 psig

Temperature Water 195 F Max.

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

UV-PRC001-EN 17

Face and Bypass Coil Isolation Valve

Classroom 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.

Piping

Coil Valve Control

Figure 20: Face and bypass

coil isolation valve

Actuator

Control 2-position

Electrical 24 VAC, 60 HZ

Stroke Time

ON/OFF

10 seconds ON

5 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-sweat

Operating

Pressure

20.2 lb

Close-off

Pressure

1/2" = 30 psig

3/4" = 15 psig

1" = 9 psig

18 UV-PRC001-EN

Piping

VUV Stroketime Value

Stroketime Values

Tables 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 2

TUC

1, 2, 3 12, 13 15 16 17 HEAT byte126 COOL byte 125 byte 132 byte 133

VUV FA A - H, Q, R, T - Y 8 1 105 205 0 NA - DX 105 NA - DX

VUV FA A - H, Q, R, T - Y 9 1 105 251 0 NA - DX 105 NA - DX

VUV FA A - H, Q, R, T - Y X 1 105 254 0 NA - DX 105 NA - DX

VUV FA A - H, Q, R, T - Y Y 1 105 208 0 NA - DX 105 NA - DX

VUV AA - AE A - H, Q, R, T - Y W 0 105 183 105 78 105 NA

VUV AA - AE A - H, Q, R, T - Y G 0 105 149 105 123 105 NA

VUV AA - AE A - H, Q, R, T - Y Z 0 105 188 105 126 105 NA

VUV AA - AE A - H, Q, R, T - Y Q 0 105 148 105 80 105 NA

VUV AA - AE A - H, Q, R, T - Y H 0 45 187 45 121 45 NA

VUV AA - AE A - H, Q, R, T - Y R 0 45 149 45 80 45 NA

VUV H1 - H6 A - H, Q, R, T - Y W 0 105 183 0 NA 105 NA

VUV H1 - H6 A - H, Q, R, T - Y G 0 105 149 0 NA 105 NA

VUV H1 - H6 A - H, Q, R, T - Y Z 0 105 188 0 NA 105 NA

VUV H1 - H6 A - H, Q, R, T - Y Q 0 105 148 0 NA 105 NA

VUV H1 - H6 A - H, Q, R, T - Y H 0 45 187 0 NA 45 NA

VUV H1 - H6 A - H, Q, R, T - Y R 0 45 149 0 NA 45 NA

VUV DA - DE A - H, Q, R, T - Y 8 105 205 NA 105

VUV DA - DE A - H, Q, R, T - Y 9 105 251 NA 105

VUV DA - DE A - H, Q, R, T - Y X 105 254 NA 105

VUV DA - DE A - H, Q, R, T - Y Y 105 208 NA 105

VUV DA - DE A - H, Q, R, T - Y W 105 78 105 NA

VUV DA - DE A - H, Q, R, T - Y G 105 123 105 NA

VUV DA - DE A - H, Q, R, T - Y Z 105 126 105 NA

VUV DA - DE A - H, Q, R, T - Y Q 105 80 105 NA

VUV DA - DE A - H, Q, R, T - Y H 45 121 45 NA

VUV DA - DE A - H, Q, R, T - Y R 45 80 45 NA

VUV DK A - H, Q, R, T - Y T 85 16 NA 85

VUV DK A - H, Q, R, T - Y U 85 24 NA 85

VUV DK A - H, Q, R, T - Y V 85 16 NA 85

VUV DK A - H, Q, R, T - Y W 105 78 105 NA

VUV DK A - H, Q, R, T - Y G 105 123 105 NA

VUV DK A - H, Q, R, T - Y Z 105 126 105 NA

VUV DK A - H, Q, R, T - Y Q 105 80 105 NA

VUV DK A - H, Q, R, T - Y H 45 121 45 NA

VUV DK A - H, Q, R, T - Y R 45 80 45 NA

VUV R1, R2 A - H, Q, R, T - Y W 105 205 NA 105

VUV R1, R2 A - H, Q, R, T - Y G 105 251 NA 105

VUV R1, R2 A - H, Q, R, T - Y Z 105 254 NA 105

VUV R1, R2 A - H, Q, R, T - Y Q 105 208 NA 105

VUV R1, R2 A - H, Q, R, T - Y W 105 78 105 NA

VUV R1, R2 A - H, Q, R, T - Y G 105 123 105 NA

VUV R1, R2 A - H, Q, R, T - Y Z 105 126 105 NA

VUV R1, R2 A - H, Q, R, T - Y Q 105 80 105 NA

VUV R1, R2 A - H, Q, R, T - Y H 45 121 45 NA

VUV R1, R2 A - H, Q, R, T - Y R 45 80 45 NA

VUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 W NA - ELC NA - ELC 105 78 105 NA

VUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 G NA - ELC NA - ELC 105 123 105 NA

VUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Z NA - ELC NA - ELC 105 126 105 NA

VUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Q NA - ELC NA - ELC 105 80 105 NA

VUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 H NA - ELC NA - ELC 45 121 45 NA

VUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 R NA - ELC NA - ELC 45 80 45 NA

UV-PRC001-EN 19

Piping

HUV Stroketime Value

Table 15: Horizontal unit ventilator (HUV) stroketime value

DIGIT(S) STROKE TIME

ZN520

VALVE 1 VALVE 2

TUC

1, 2, 3 12, 13 15 16 17 HEAT byte126 COOL byte 125 byte 132 byte 133

HUV FA A - H, Q, R, T - Y 8 1 105 205 0 NA - DX 105 NA - DX

HUV FA A - H, Q, R, T - Y 9 1 105 251 0 NA - DX 105 NA - DX

HUV FA A - H, Q, R, T - Y X 1 105 254 0 NA - DX 105 NA - DX

HUV FA A - H, Q, R, T - Y Y 1 105 208 0 NA - DX 105 NA - DX

HUV AA - AE A - H, Q, R, T - Y W 0 105 183 105 78 105 NA

HUV AA - AE A - H, Q, R, T - Y G 0 105 149 105 123 105 NA

HUV AA - AE A - H, Q, R, T - Y Z 0 105 188 105 126 105 NA

HUV AA - AE A - H, Q, R, T - Y Q 0 105 148 105 80 105 NA

HUV AA - AE A - H, Q, R, T - Y H 0 45 187 45 121 45 NA

HUV AA - AE A - H, Q, R, T - Y R 0 45 149 45 80 45 NA

HUV H1 - H6 A - H, Q, R, T - Y W 0 105 183 0 NA 105 NA

HUV H1 - H6 A - H, Q, R, T - Y G 0 105 149 0 NA 105 NA

HUV H1 - H6 A - H, Q, R, T - Y Z 0 105 188 0 NA 105 NA

HUV H1 - H6 A - H, Q, R, T - Y Q 0 105 148 0 NA 105 NA

HUV H1 - H6 A - H, Q, R, T - Y H 0 45 187 0 NA 45 NA

HUV H1 - H6 A - H, Q, R, T - Y R 0 45 149 0 NA 45 NA

HUV DA - DE A - H, Q, R, T - Y 8 105 205 NA 105

HUV DA - DE A - H, Q, R, T - Y 9 105 251 NA 105

HUV DA - DE A - H, Q, R, T - Y X 105 254 NA 105

HUV DA - DE A - H, Q, R, T - Y Y 105 208 NA 105

HUV DA - DE A - H, Q, R, T - Y W 105 78 105 NA

HUV DA - DE A - H, Q, R, T - Y G 105 123 105 NA

HUV DA - DE A - H, Q, R, T - Y Z 105 126 105 NA

HUV DA - DE A - H, Q, R, T - Y Q 105 80 105 NA

HUV DA - DE A - H, Q, R, T - Y H 45 121 45 NA

HUV DA - DE A - H, Q, R, T - Y R 45 80 45 NA

HUV DK A - H, Q, R, T - Y T 85 16 NA 85

HUV DK A - H, Q, R, T - Y U 85 24 NA 85

HUV DK A - H, Q, R, T - Y V 85 16 NA 85

HUV DK A - H, Q, R, T - Y W 105 205 105 NA

HUV DK A - H, Q, R, T - Y G 105 251 105 NA

HUV DK A - H, Q, R, T - Y Z 105 254 105 NA

HUV DK A - H, Q, R, T - Y Q 105 208 105 NA

HUV DK A - H, Q, R, T - Y H 45 249 45 NA

HUV DK A - H, Q, R, T - Y R 45 208 45 NA

HUV R1, R2 A - H, Q, R, T - Y W 105 205 NA 105

HUV R1, R2 A - H, Q, R, T - Y G 105 251 NA 105

HUV R1, R2 A - H, Q, R, T - Y Z 105 254 NA 105

HUV R1, R2 A - H, Q, R, T - Y Q 105 208 NA 105

HUV R1, R2 A - H, Q, R, T - Y W 105 78 105 NA

HUV R1, R2 A - H, Q, R, T - Y G 105 123 105 NA

HUV R1, R2 A - H, Q, R, T - Y Z 105 126 105 NA

HUV R1, R2 A - H, Q, R, T - Y Q 105 80 105 NA

HUV R1, R2 A - H, Q, R, T - Y H 45 121 45 NA

HUV R1, R2 A - H, Q, R, T - Y R 45 80 45 NA

HUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 W NA - ELC NA - ELC 105 78 105 NA

HUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 G NA - ELC NA - ELC 105 123 105 NA

HUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Z NA - ELC NA - ELC 105 126 105 NA

HUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 Q NA - ELC NA - ELC 105 80 105 NA

HUV X3, X4, X6 A - H, Q, R, T - Y 4, 5 H NA - ELC NA - ELC 45 121 45 NA

HUV 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 Packages

Trane 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

Piping

Factory 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

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Trane HUV Installation Operation & Maintenance

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