Trane VUV 750 CFM, VUV 1500 CFM User Manual

Installation Owner Maintenance

Vertical Unit Ventilator

Classroom Unit Ventilator Model VUV

Models

VUVE

750 CFM

“A” and later Design Sequence

– 1500 CFM

UV-SVN03D-ENOctober 2007

Notice

NOTICE:

Warnings and Cautions appear at appropriate sections throughout this manual. Read these carefully.

WARNING – Indicates a potentially hazardous situation

which, if not avoided, could result in death or serious injury.

CAUTION – Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

CAUTION – Indicates a situation that may result in equipment or property-damage-only accidents.

Important!

Equipment is shipped FOB (Free on Board) at the manufacturer. Therefore, freight claims for damages against the carrier must be initiated by the receiver.

Contents

Installation/Startup/Commissioning

Pre-installation Checklist

General Information

Dimensions/Weights

Installation Instructions

Electrical Requirements

Pre-Startup Checklist

Maintenance

Warranty Information

Troubleshooting Checklist

Unit Wiring

UV-SVN03D-EN 3

Pre-installation Checklist

Jobsite Inspection

Always perform the following checks before accepting a unit:

1. Verify that the nameplate data matches the data on the sales order and bill of lading (including electrical data).

2. Verify that the power supply complies with the unit nameplate specifications.

3. Visually inspect the exterior of the unit, for signs of shipping damage. Do not

sign the bill of lading accepting the unit(s) until inspection has been com pleted. Check for damage promptly after the unit(s) are unloaded. Once the bill of lading is signed at the jobsite, the unit(s) are now the property of the SOLD TO party and future freight claims MAY NOT be accepted by the freight company.

Microbial Growth!

Wet interior unit insulation can become an amplification site for microbial growth (mold), which may cause odors and damage to the equipment and building materials. If there is evidence of microbial growth (mold) on the interior insulation, the insulation should be removed and replaced prior to operating the system.

Jobsite Storage

This unit is intended for indoor use only. To protect the unit from damage due to the elements, and to prevent possible IAQ contaminant sources from growing.

1. Place the unit(s) on a dry surface or raise above the ground to assure adequate air circulation beneath the unit.

2. Cover the unit(s) with a water proof tarp to protect them from the elements.

3. Make provisions for continuous venting of the covered units to prevent moisture from standing on the unit(s) surfaces. Wet interior unit insulation can become an amplification site for microbial growth (mold) which can be a cause of odors and possible indoor air quality problems.

4. Do not stack units.

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General Information

Unit Nameplate

The unit nameplate is located in the left hand end pocket, behind the control box. It includes the unit model number, serial number, electrical characteristics, and other pertinent unit data.

Factory Shipment

Before shipment, each unit is leak tested, and run tested for proper control operation.

Access

A three panel front access of the unit ventilator allows for speedy set-up during field commissioning. This design allows for the end pocket of the unit ventilator to be open while the fan (airside) section stays closed.

End Pockets

Access for piping and controls is made through the unit ventilator’s end pockets.

Coil Connections

The coil headers and drain connections are made within the unit chassis to allow a tight seal and help prevent air leakage around the coil. The connection sizes vary dependent upon type of coil combination specified.

Coil Type Size (in.) Hydronic Cooling (Main) Coil or

Heating/Cooling Changeover Coil Heating (Auxiliary) Coil Steam Heating Coil 1" FNPT Direct Expansion Coil

3/4" Nominal

7/8" I.D.

1/2" Nominal

5/8" I.D.

3/8" O.D. Liquid

7/8" O.D. Suction

Unit Drain Pan

The drain pan is dual-sloped for effective condensate removal. It is made from a non-corrosive material to help eliminate issues associated to leaking or standing water. It may be easily re moved for cleaning. The drain pan connection size for all Trane VUVE models is 7/8" O.D.

Motor

Motors for the VUVE model do not include an external fan bearing on the end of the fan shaft. This helps avoid issues related to fan bearing mainte

nance (oiling is not needed), and/or bearing replacement.

Filters

Filter sizing for the unit ventilator are an off-the-shelf design to reduce or help eliminate local stocking of the filters.

Sliding Fan Deck

Convenient access to the fan motor and wheels for maintenance and ser viceability may be made through Trane’s easy-slide fan deck design.

Outside/Return-Air Dampers

The outside-air/return-air damper is a one piece, linkage free design resulting in a superior air-tight seal.

Field Installed Controls

(Option)

The unit comes equipped with a fan speed switch, damper blade (only), and an optional low temperature detection.

End Device Control Package

(Option)

Units containing the End Device control design will incorporate a prewired, selected control components to a terminal strip for wiring a field pro vided controller and temperature sensor.

Note: for controller operation malfunction of any non-Trane, field installed controls, consult the literature or technical support of the controls manufacturer.

Tracer™ ZN520 Control Package

(Option)

The ZN520 electronic digital controller is a factory installed, tested and commissioned LonTalk™ certified design. It may be used in a stand-alone control scheme, or as part of a building auto

mation system. The controller is pre-

wired to Trane selected control com ponents best suited for room comfort. For more information on the ZN520 unit controller operation and service issues, refer to CNT-SVX04A-EN (ZN520 control manual).

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General Information

OA/RA Actuator (Option)

Table 1: OA/RA actuator specification

Table 2: Face-bypass actuator specification

The OA/RA actuator provides true spring return operation for positive close-off of the OA/RA damper. The spring return system of the actuator closes the outside damper if power is lost to the building. When ordered with factory controls, the actuator is a 3-point floating design. A 2 to 10 VDC actuator is available when other than Trane controls are specified. See Table 1 for OA/RA technical data.

Note: Because the damper actuator is a spring return type an inner spring will close the damper upon loss of power. If the need to service or replace the actuator is required, the spring must be "loaded" for the damper to function properly. The term loaded means that the blade must be held in the return air position upon replace ment of the actuator.

Power Supply

Power Consumption

Transformer Sizing

Overload Protection Control Signal 2 to 10 VDC

Angle of Rotation

Torque 35-inch/lb Direction of Rotation Position

Indication Run Time

(nominal) Noise Level Running: 30 dB

24 VAC ± 20% 50/60 HZ 24 VAC ± 10%

Running: 2.5 W Holding: 1 W

5 VA (class 2-power source)

Electronic throughout 0 to 95-degree rotation

3-point floating with Trane controls Maximum 95-degree

Adjustable with mechanical stop

Spring return reversible with CW/ CCW mounting Visual indicator, 0 to 95-degrees

90-second constant (independent of load)

Power Supply

Power Consumption

Transformer Sizing Angle of Rotation Torque 35-inch/lb Direction of Rotation Position Indication Run Time (nominal) Manual Override Noise Level Less than 35 dB Control Signal 3-point floating

24 VAC ± 20% 50/60 HZ 24 VAC ± 10%

2 W

3 VA (class 2-power source)

Maximum 95-degree Adjustable with mechanical stop

Reversible with switch L/R

Clip-on indicator

90-second constant

External push button

Face and Bypass Actuator (Option)

The face and bypass damper actuator

Table 3: Mod. water valve specification.

Table 4: Isolation valve specification.

incorporates a direct couple design. It provides electronic protection against overload. A limit switch is not includ

ed, nor required as part of the design. When reaching the damper end position, the actuator automatically stops. The gears can be manually disen

gaged with a button on the housing. See Table 2 for face and bypass actua tor specifications.

Modulating Water Valves (Option)

The modulating control valve provides optimum control of hot and chilled wa ter flow in various heating and cooling applications. They are designed to provide sinusoidal valve actuator trav

Power Supply

Power Consumption Max. Duty Cycle 15%

Nominal Timing 120 sec. Operating Ambient

Temp. Min./Max. Fluid Temp. 1 to 95°C

Operating Pressure

Differential Pressure Rating Static - 20 bar (300 psi)

Flow Characteristic Linear

24 VAC - 50/60 HZ

4 W

0 to 65°C 32 to 150°F

34 to 203°F Max. - 4 bar (60 psi)

Burst - 100 bar (1500 psi)

Power Supply

Power Consumption

Max. Fluid Temp. 94°C

Min. Fluid Temp. 1°C

Max. Operating Pressure 300 psi Max. Close-off Pressure 1/2" = 30 psi

24 VAC - 50/60 HZ

5 W

200°F

34°F

3/4" = 20 psi 1" = 15 psi

el and operate silently, resisting water hammer. The actuator on the valve is a 24V, 3point floating type. See Table 3 for modulating water valve specifications.

Isolation Valve (Option)

The isolation valve is a two position 24V, spring return type valve. It pro vides added control in heating and cooling applications when used in

On heating coils, and two-pipe changeover applications, the valve is normally open to help prevent the coil from freezing in-case of power loss.

For cooling, the valve is normally closed and opens when there is a call for cool-

ing. See Table 4 for isolation valve specifications.

conjunction with the face and bypass damper.

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Dimensions/Weights/ Clearance

WARNING

Improper Unit Lift!

Test lift unit approximately 24 inches to verify proper center of gravity lift point. To avoid dropping of unit, reposition lifting point if unit is not level. Failure to properly lift unit could result in death or serious injury or possible equipment or property-only damage.

Table G1: VUVE general data

Description Unit Size

0750 1000 1250 150 0 Unit Length w/o end covers (inches) Unit Depth - Standard (inches) Unit Depth - with false back (inches) Unit Height - Standard (inches) Shipping Weight (Lbs.) Nominal Filter Size and Quantity (inches) Dynamic Air Filter Nominal Size (inches) & Qty. Drain Connection Size (inches) Fan Type / Quantity Motor Data

Quantity 1 1 2 2

Horsepower (ea) 1/4 1/4 1/10 1/10

Number of Fan Speeds (Standard)

If DX or electric heat used 1 1 1 1

Number of Fan Speed (ZN520)

If exhaust fan or ERSA used 2 2 2 2

If DX or electric heat used 1 1 1 1

Coil Volume (gal.)

Coil Type A 0.178 0.228 0.277 0.327

B 0.311 0.410 0.510 0.610 C 0.311 0.410 0.510 0.610 D 0.444 0.571 0.704 0.931

E 0.444 0.571 0.704 0.931

F 0.610 0.809 1. 014 1. 21 3 G 0.610 0.809 1. 014 1.213 H 0.395 0.593 0.742 0.837

69 81 93 105 16 5/8 16 5/8 16 5/8 16 5/8 21 1/4 21 1/4 21 1/4 21 1/4

30 30 30 30

320 405 450 470

14 x 20 x 1 (2) 14 x 24 x 1 (1) 14 x 20 x 1 (2) 14 x 24 x 1 (2)

7 x 42 x 1 (1) 7 x 54 x 1 (1) 7 x 66 x 1 (1) 7 x 78 x 1 (1)

7/8 ID Hose 7/8 ID Hose 7/8 ID Hose 7/8 ID Hose

FC / 2 FC / 2 FC / 4 FC / 4

3 3 3 3

14 x 30 x 1 (1) 14 x 24 x 1 (1) 14 x 30 x 1 (1)

Unit Location and Clearances

Locate the unit in an indoor area. The ambient temperature surrounding the unit must not be less than 45°F. Do not locate the unit in areas subject to freezing.

Attention should be given to service clearance and technician safety. The unit should contain enough space for

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service personnel to perform maintenance or repair. Provide sufficient room to make water, and electrical connection(s). Local and national codes should be followed in providing electrical power connections. A 36" clearance at the unit front is sufficient for maintenance and service of the equipment.