Trane VUVE Installation and Maintenance Manual

Installation, Operation, and Maintenance

Vertical Unit Ventilator

Classroom Unit Ventilator—Model VUV

Models VUVE

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

January 2013 UV-SVN03F-EN

“A” and later Design Sequence 750 cfm—1500 cfm

SAFETY WARNING

Warnings, Cautions and Notices

Warnings, Cautions, and Notices. Note that

warnings, cautions, and notices appear at appropriate intervals throughout this manual. Warnings are provide to alert installing contractors to potential hazards that could result in death or personal injury. Cautions are designed to alert personnel to hazardous situations that could result in personal injury, while notices indicate a situation that could result in equipment or property-damage-only accidents.

Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

Read this manual thoroughly before operating or servici ng this unit.

ATT EN TI ON : Warnings, Cautions, and Notices appear at

appropriate sections throughout this literature. Read these carefully:

WARNING

CAUTIONs

NOTICE:

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

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

Indicates a situation that could result in equipment or property-damage only

Important Environmental Concerns!

Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs such as HCFCs and HFCs.

Responsible Refrigerant Practices!

Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that

must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

WARNING

Contains Refrigerant!

System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure before opening the system. See unit nameplate for refrigerant type. Do not use non-approved refrigerants, refrigerant substitutes, or refrigerant additives.

Failure to follow proper procedures or the use of nonapproved refrigerants, refrigerant substitutes, or refrigerant additives could result in death or serious injury or equipment damage.

WARNING

Proper Field Wiring and Grounding Required!

All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes. Failure to follow code could result in death or serious injury.

WARNING

Personal Protective Equipment (PPE) Required!

Installing/servicing this unit could result in exposure to electrical, mechanical and chemical hazards.

• Before installing/servicing this unit, technicians MUST put on all PPE required for the work being undertaken. ALWAYS refer to appropriate MSDS sheets and OSHA guidelines for proper PPE.

• When working with or around hazardous chemicals, ALWAYS refer to the appropriate MSDS sheets and OSHA guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.

• If there is a risk of arc or flash, technicians MUST put on all PPE in accordance with NFPA 70E or other country-specific requirements for arc flash protection, PRIOR to servicing the unit.

Failure to follow instructions could result in death or serious injury.

WARNI NG

Hazard of Explosion and Deadly Gases!

Never solder, braze or weld on refrigerant lines or any unit components that are above atmospheric pressure or where refrigerant may be present. Always remove refrigerant by following the guidelines established by the EPA Federal Clean Air Act or other state or local codes as appropriate. After refrigerant removal, use dry nitrogen to bring system back to atmospheric pressure before opening system for repairs. Mixtures of refrigerants and air under pressure may become combustible in the presence of an ignition source leading to an explosion. Excessive heat from soldering, brazing or welding with refrigerant vapors present can form highly toxic gases and extremely corrosive acids. Failure to follow all proper safe refrigerant handling practices could result in death or serious injury.

Introduction

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.

Warnings, Cautions and Notices

Trademarks

ComfortLink, EarthWise, Rover, Tracer, Tracer Summit, Trane, and the Trane logo are trademarks or registered trademarks of Trane in the United States and other countries. All trademarks referenced in this document are the trademarks of their respective owners.

BACnet is a registered trademark of American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE); Echelon, LonTalk, and L trademarks of Echelon Corporation; Energizer is a registered trademark of Eveready Battery Company, Inc.; National Electrical Code, National Fire Protection Association, and NEC are registered trademarks of the National Fire Protection Association.

UV-SVN03F-EN 3

ONWORKS are registered

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Model Number Descriptions . . . . . . . . . . . . . . 6

General Information . . . . . . . . . . . . . . . . . . . . . 8

Unit Description . . . . . . . . . . . . . . . . . . . . . 8

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

ECM Application Notes . . . . . . . . . . . . . . . . . . 10

Dimensions and Weights . . . . . . . . . . . . . . . . 11

Unit Location and Clearances . . . . . . . . . 11

Receiving and Handling . . . . . . . . . . . . . . . . . 18

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . 19

Jobsite Inspection . . . . . . . . . . . . . . . . . . 19

Jobsite Storage . . . . . . . . . . . . . . . . . . . . 19

Installation—Mechanical . . . . . . . . . . . . . . . . 20

Wall Box Installation . . . . . . . . . . . . . . . . 20

General Installation Checks . . . . . . . . . . . 20

Location Considerations . . . . . . . . . . . . . 21

Unit Mounting . . . . . . . . . . . . . . . . . . . . . 21

Installation—Piping . . . . . . . . . . . . . . . . . . . . . 24

Piping Installation . . . . . . . . . . . . . . . . . . . 24

Refrigerant Piping . . . . . . . . . . . . . . . . . . 25

Steam Piping . . . . . . . . . . . . . . . . . . . . . . 25

Modulating Water Valves (Option) . . . . . 25

Heating Coils with Direct Expansion Cooling

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Installation—Sensors . . . . . . . . . . . . . . . . . . . 29

Control Options . . . . . . . . . . . . . . . . . . . . . . 29

Installing Wall-Mounted Wired Sensors . 30

Location Considerations . . . . . . . . . . . . . 31

Location Considerations for Wireless zone

sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Fan Mode Switch Installation . . . . . . . . . 31

Zone Sensor Installation . . . . . . . . . . . . . 31

Wireless Sensors . . . . . . . . . . . . . . . . . . . . . 32

Address Setting . . . . . . . . . . . . . . . . . . . . 32

Observing the Receiver for Readiness to As-

sociate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Associating the Sensor to the Receiver . 33

Testing Signal Strength and Battery Status

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Configuring the Wireless Display Sensor

(Model WDS only) . . . . . . . . . . . . . . . . . . .35

Sensor Operations . . . . . . . . . . . . . . . . . . .37

Wireless Sensor Specifications . . . . . . . . . 40

Installation—Electrical . . . . . . . . . . . . . . . . . . .42

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Electrical Wiring . . . . . . . . . . . . . . . . . . . . .42

Electric Heat (Option) . . . . . . . . . . . . . . . . .43

DX System . . . . . . . . . . . . . . . . . . . . . . . . .43

Split System Start-Up . . . . . . . . . . . . . . . .43

ECM Overview and Setup . . . . . . . . . . . . . . . . 45

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

General Information . . . . . . . . . . . . . . . . . . . 45

Trane BLDC Motor . . . . . . . . . . . . . . . . . . .45

ECM Engine Controller . . . . . . . . . . . . . . .45

Standard Adapter Board . . . . . . . . . . . . . .46

CSTI Adapter Board . . . . . . . . . . . . . . . . . .46

Installation and Initial Setup . . . . . . . . . . . .47

Installation and Initial Setup . . . . . . . . . . .47

Adjustment and Configuration of the Engine

Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Status Display . . . . . . . . . . . . . . . . . . . . . . .50

Initial Setup and Configuration . . . . . . . . .55

Configuration . . . . . . . . . . . . . . . . . . . . . . . . .55

Configuring the ECM Engine Controller . .55

Configuring the ECM Engine Board . . . . .60

Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Setting the Time Clock . . . . . . . . . . . . . . . .65

Wired Controllers—Communication Wiring 67

Wiring Installation (ZN520) . . . . . . . . . . . . .67

Device Addressing . . . . . . . . . . . . . . . . . . .67

Recommended Communication Wiring Prac-

tices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Wiring Installation (Tracer UC400) . . . . . . .67

Wiring Overview Outline . . . . . . . . . . . . . .68

General Instructions . . . . . . . . . . . . . . . . . .68

BACnet MS/TP Link . . . . . . . . . . . . . . . . . .68

Power Supply . . . . . . . . . . . . . . . . . . . . . . .69

Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

4 UV-SVN03F-EN

Pre-Start-up Checklist . . . . . . . . . . . . . . . 71

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Tracer ZN520 Unit Startup . . . . . . . . . . . . 72

Tracer UC400 Unit Startup . . . . . . . . . . . 72

General Information . . . . . . . . . . . . . . . . . 72

Fan Mode Switch Operation . . . . . . . . . . 72

Tracer ZN520 Operation . . . . . . . . . . . . . 72

UC400 Controller Operation . . . . . . . . . . 73

Tracer ZN520 Sequence of Operation . . . 73

Cooling Operation (Tracer ZN520) . . . . . 74

Fan Mode Operation (Tracer ZN520) . . . 75

UC400 Sequence of Operation . . . . . . . . . 80

Power-up Sequence (UC400) . . . . . . . . . 80

Random Start (UC400) . . . . . . . . . . . . . . . 80

Occupancy Modes (UC400) . . . . . . . . . . . 80

Timed Override Control (UC400) . . . . . . 81

Zone Temperature Control (UC400) . . . . 81

Discharge Air Tempering (UC400) . . . . . 82

Heating or Cooling Mode (UC400) . . . . . 82

Entering Water Temperature Sampling Func-

tion (UC400) . . . . . . . . . . . . . . . . . . . . . . . 82

Fan Operation (UC400) . . . . . . . . . . . . . . 82

Exhaust Control (UC400) . . . . . . . . . . . . . 83

Valve Operation (UC400) . . . . . . . . . . . . . 83

Modulating Outdoor/Return Air Damper

(UC400) . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Two-position Control Of A Modulating Out-

door Air Damper (UC400) . . . . . . . . . . . . 85

Electric Heat Operation (UC400) . . . . . . . 85

Dehumidification Operation (UC400) . . . 85

Peer-to-peer Communication (UC400) . . 85

Unit Protection Strategies (UC400) . . . . . 85

Output Testing (UC400) . . . . . . . . . . . . . . .95

Diagnostics (UC400) . . . . . . . . . . . . . . . . . 95

Troubleshooting (Wireless Controls) . . . . .96

Troubleshooting (Tracer ZN520) . . . . . . .102

Troubleshooting (UC400) . . . . . . . . . . . .103

Troubleshooting (ECM) . . . . . . . . . . . . . .105

General Information (ECM) . . . . . . . . . . .106

Troubleshooting Information (ECM) . . .106

Replacing ECM Components . . . . . . . . . . . .108

Circuit Modules Replacement Notes/Work In-

structions . . . . . . . . . . . . . . . . . . . . . . . . .109

Softsetting the IMC Address of an ECM En-

gine Module . . . . . . . . . . . . . . . . . . . . . . . 110

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Service Access . . . . . . . . . . . . . . . . . . . . . 87

Periodic Maintenance . . . . . . . . . . . . . . . 87

Preventive Maintenance . . . . . . . . . . . . . 89

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Troubleshooting Checklist . . . . . . . . . . . . 90

Output Testing and Diagnostics (Tracer ZN520)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Output Testing and Diagnostics (UC400) . 95

UV-SVN03F-EN 5

Model Number Descriptions

Vertical Unit Ventilator Model Number

Digits 1, 2, 3 — Unit Configuration

VUV= Vertical Unit Ventilator

Digit 4 — Development Sequence

Digits 5, 6, 7 — Nominal Airflow

075 = 750 cfm 100 = 1000 cfm 125 = 1250 cfm 150 = 1500 cfm

Digit 8 — Voltage (Volts/Hz/ Phase)

0 = 115/60/1 1 = 208/60/1 2 = 230/60/1 3 = 208/60/3 4 = 460/60/3 7 = 277/60/1 8 = 230/60/3

Digit 9 — Open Digit = 0

Digits 10, 11 — Current Design Sequence

Digit 12 — Face & Bypass

Y = Yes, Include Damper N= No Damper

Digit 13 — Unit Arrangement

1 = Return Air Front / Fresh Air Back 2 = 100% Return Air Front 3 = 100% Fresh Air Back 4 = Dynamic Air Barrier 5 = ERS-Compatible w/RH

Connection

6 = ERS-Compatible w/LH

Connection

Digit 14 — Preheat / Reheat / Changeover

A = 4-Pipe Preheat (RH Clg/LH Htg) B = 4-Pipe Preheat (LH Clg/RH Htg) C = 4-Pipe Reheat (RH Clg/LH Htg) D = 4-Pipe Reheat (LH Clg/RH Htg) E = 2-Pipe (RH Connections) F = 2-Pipe (LH Connections)

Digit 15 — Cooling / 2-Pipe Coil

0=None B = 2-Row, 12 F.P.I. C = 2-Row, 16 F.P.I. D = 3-Row, 12 F.P.I. E = 3-Row, 16 F.P.I. F = 4-Row, 12 F.P.I. G = 4-Row, 14 F.P.I. H = 3-Row, 16 F.P.I, EarthWise™ Coil J = 3-Row, DX (R-410A) Cooling Coil

Digit 16 — Heating Coil

0=None A = 1-Row, 12 F.P.I. B = 2-Row, 12 F.P.I. C = 2-Row, 16 F.P.I. D = 3-Row, 12 F.P.I. E = 3-Row, 16 F.P.I. F = 4-Row, 12 F.P.I. G = 4-Row, 14 F.P.I. H = 3-Row, 16 F.P.I, EarthWise Coil K=Steam Low L=Steam High M = Electric Heat - Low N = Electric Heat - Med P = Electric Heat - High

Digit 17 — Motor

0=ECM 1 = ECM & Low Acoustic Option 2 = ECM & Low FLA Option 3 = ECM & Low Acoustic & Low FLA

Option

Digit 18 — Other Motor Items

A= None B=Toggle C = Circuit Breaker

Digit 19 — 2- or 3-Way Valve Cooling Changeover Coil

0=None 2 = 2-Way; 3-Point Floating 3 = 3-Way; 3-Point Floating 4 = 2-Way; 2–10 Volt 5 = 3-Way; 2–10 Volt 6 = Isolation Valve; 2-Way 7 = Isolation Valve; 3-Way

Digit 20 — CV - Cooling or Changeover Coil

0=None L=Low Cv M = Medium Cv H= High Cv

Digit 21 — 2- or 3-Way Valve Preheat or Reheat Heating Coil

0=None 2 = 2-Way; 3-Point Floating 3 = 3-Way; 3-Point Floating 4 = 2-Way; 2–10 Volt 5 = 3-Way; 2–10 Volt 6 = Isolation Valve; 2-Way 7 = Isolation Valve; 3-Way

Digit 22 — CV - Preheat or Reheat Heating Coil

0=None L=Low Cv M = Medium Cv H= High Cv

Digit 23 — Discharge Arrangement

0 = Opening Only, No Grille A = Discharge Grille B = Double Deflection Discharge

Grille

C = Grille Discharge with Wire Mesh

Digit 24 — Outside Air Damper Control

0=None A = 3-Wire Actuator B = 2–10 Volt Actuator

Digit 25 — Face and Bypass Damper Control

0=None A = 3-Wire Actuator B = 2–10 Volt Actuator

Digit 26 — Controls

0 = None, Unit-Mounted Speed

Switch

2 = Customer Supplied Terminal

Interface (CSTI) 3 = CSTI w/Low Temp Detection 4 = Tracer™ ZN520 5 = Tracer ZN520 w/Time Clock 6 = Tracer ZN520 w/Fan Status 7 = Tracer UC400 8 = Tracer UC400 w/Time Clock

Digit 27 — Unit- or WallMounted Controls

0=None 1 = Unit-Mounted 2 = Wall-Mounted 3 = Unit-Nounted Fan Speed

Switch & Wall-Mounted

Temperature Sensor 4 = Wireless Zone Sensor

Note: The wall-mounted room sensor is

ordered as separate line item in

Job Configurator.

Digit 28 — Internal or External Set Point

0=None 1=Internal 2=External 3 = Digital Display

Digit 29 — Timed Override

0=No 1=Yes

Digit 30 — Exhaust Control

A = No Exhaust Control with

3-Speed Supply Fan B = Exhaust Control with 2-Speed

Supply Fan C = No Exhaust Control with 1-Speed

Supply Fan (DX/EH Units) D = Exhaust Control with 1-Speed

Supply Fan (DX/EH Units)

Digit 31 — DDC Programming

0=None 1 = Humidity Sensor Programming 2=CO

Note: The humidity and CO

Sensor Programming

sensor must be ordered as a separate line item in Job Configurator.

6 UV-SVN03F-EN

Model Number Descriptions

Digit 32 — Unit Depth

A = Standard (16-5/8 in.) B = 21-1/4 in. Depth with Baffle C = 21-1/4 in. Depth with Full Sheet

Metal Back and Baffle

D = 21-1/4 in. Depth with 25 in. High

Falseback

E = 21-1/4 in. Depth with 26 in. High

Falseback

F = 21-1/4 in. Depth with 27 in. High

Falseback

G = 21-1/4 in. Depth with 28 in. High

Falseback

H = 21-1/4 in. Depth with 29 in. High

Falseback

J = 21-1/4 in. Depth without Baffle

Note: Selection “J” should be applied if

OA opening is raised above standard baffle location.

Digit 33 — End Covers

0=None 1 = 16-5/8 in. Depth without Cutouts 2 = 16-5/8 in. Depth with 3 x 7-1/4 in.

Cutout 4 = 21-1/4 in. Depth without Cutouts 5 = 21-1/4 in. Depth with 3 x 7-1/4 in.

Cutout 6 = 21-1/4 in. Depth with 3-1/4 in. x

16-7/8 in. Cutout

Digit 34 — Front Panel

1 = Standard Front Panel 2 = Heavy Gauge Front Panel

Digit 35 — Subbase

0=No Subbase 2 = 2 in. Subbase 4 = 4 in. Subbase 6 = 6 in. Subbase

Digit 36 — Piping Package

0=None 1 = Ball Valves & P/T Ports 2 = Ball Valve & Circuit-Setter with

P/T Ports 3 = Ball Valve, Circuit-Setter with

P/T Ports & Strainer

Digit 37 — Flow Control Cooling/Changeover Coil

0=None

Digit 38 — Flow Controls Heating Coil

0=None

Digit 39 — Auxiliary Drain Pan Piping

Y = Yes, Auxiliary Drain Pan N = No Auxiliary Drain Pan

Digit 40 — Crossover Piping

0=None 1=Internal 2 = External 1-3/8 in. Crossover

Piping 3 = External 2-1/8 in. Crossover

Piping

Digit 41 — Filter

1 = Standard Throwaway Filter 2 = MERV 8 Filter 3 = MERV 13 Filter

Digit 42 — Color

1 = Deluxe Beige 2 = Cameo White 3=Soft Dove 4 = Stone Gray 5 = Driftwood Gray

UV-SVN03F-EN 7

General Information

Unit Description

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

Hydronic cooling (main) coil or Heating/cooling changeover coil

Heating (auxiliary) coil

Steam heating coil 1 in. FNPT Direct expansion coil

Unit Drain Pan. The drain pan is dual-sloped for

effective condensate removal. It is made from a noncorrosive material to help eliminate issues associated to leaking or standing water. It may be easily removed for cleaning. The drain pan connection size for all Trane VUVE models is 7/8

in. OD.

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 maintenance (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. Options include throwaway filters, MERV 8, and MERV 13 filters.

Sliding Fan Deck. Convenient access to the fan motor

and wheels for maintenance and serviceability may be made through Trane’s easy-slide fan deck design.

Note: Ground wire must be reconnected if removed for

service of fan deck.

Outside-Air/Return-Air Dampers. The outside-air/

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

Size (in.)

3/4 in. nominal 7/8 in. ID

1/2 in. nominal 5/8 in. ID

3/8 in. OD liquid 7/8 in. OD suction

Options

Field-Installed Controls (Option). The unit comes

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

Customer Supplied Terminal Interface (CSTI) (Option).

will incorporate a pre-wired, selected control components to a terminal strip for wiring a field-provided controller and temperature sensor.

Note: For controller operation malfunction of any non-

Tracer ZN520 Control Package (Option). The Tracer

ZN520 electronic digital controller is a factory installed, tested and commissioned LonTalk may be used in a stand-alone control scheme, or as part of a building automation system. The controller is pre-wired to Trane selected control components best suited for room comfort. For more information on the Tracer ZN520 unit controller operation and service issues, refer to CNT-SVX04A-EN (Installation, Operation, and Programming Guide: Tracer ZN520 Unit Controller), or the most recent version.

Tracer UC400 Control Package (Option). The Tracer

UC400 electronic digital controller is a factory installed, tested and commissioned BACnet® certified design. The Tracer UC400 operates as a single zone VAV controller and ramps fan speed based on space load. It may be used in a stand-alone control scheme, or as part of a building automation system. The controller is mounted, pre-wired, and pre-programmed to selected control components best suited for room comfort. For more information on the Tracer UC400 unit controller operation and service issues, refer to BAS-SVX48B-EN (Installation, Operation, and

Programming Manual: Tracer UC400 Programmable Controller), or the most recent version.

OA/RA Actuator (Option). 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. Refer to Table 1, p. 9 for OA/RA technical data.

Note: Because the damper actuator is a spring return

Units containing the end device control design

Trane, field installed controls, consult the literature or technical support of the controls manufacturer.

certified design. It

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 replacement of the actuator.

8 UV-SVN03F-EN

General Information

Power supply 24 Vac ±20% 50/60 Hz

24 Vac ±10%

Power consumption Running: 2.5 W

Holding: 1 W

Transformer sizing 5 VA (class 2-power source) Overload protection Electronic throughout 0° to 95° rotation Control signal 2 to 10 Vdc

3-point floating with Trane controls

Angle of rotation Maximum 95°

Adjustable with mechanical stop

Torque 35 in·lb Direction of rotation Spring return reversible with cw/ccw

mounting

Position indication Visual indicator, 0° to 95° Noise level Running: 30 dB

Power supply 24 Vac ± 20% 50/60 Hz

24 Vac

± 10%

Power consumption 2 W Transformer sizing 3 VA (class 2-power source) Angle of rotation Maximum 95-degree

Adjustable with mechanical stop

Torque 35 in./lb Direction of rotation Reversible with switch L/R Position indication Clip-on indicator Manual override External push button Noise level Less than 35 dB Control signal 3-point floating

Power supply 24 Vac - 50/60 Hz

Power consumption 4 W Max. duty cycle 15% Operating ambient temp. 0 to 65°C

32 to 150°F

Min./max. fluid temp. 1 to 95°C

34 to 203°F

Operating pressure differential

Max. - 4 bar (60 psi)

Pressure rating Static - 20 bar (300 psi)

Burst - 100 bar (1500 psi)

Flow characteristic Linear

Power supply 24 Vac - 50/60 Hz

Power consumption 5 W Max. fluid temp. 94°C

200°F

Min. fluid temp. 1°C

34°F Max. operating pressure 300 psi Max. close-off pressure 1/2 in. = 30 psi

3/4 in. = 20 psi

1 in. = 15 psi

Face and Bypass Actuator (Option). The face and

bypass damper actuator incorporates a direct couple design. It provides electronic protection against overload. A limit switch is not included, nor required as part of the design. When reaching the damper end position, the actuator automatically stops. The gears can be manually disengaged with a button on the housing. Refer to Table 2,

p. 9 for face and bypass actuator specifications.

Modulating Water Valves (Option). The modulating

control valve provides optimum control of hot and chilled water flow in various heating and cooling applications. They are designed to provide sinusoidal valve actuator travel and operate silently, resisting water hammer.

The actuator on the valve is a 24V, 3-point floating type. Refer to Tabl e 3 for modulating water valve specifications.

Isolation Valve (Option). The isolation valve is a two

position 24V, spring return type valve. It provides added control in heating and cooling applications when used in conjunction with the face and bypass damper.

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 cooling. Refer to Tab l e 4 , p. 9 for isolation valve specifications.

Table 2. Face-bypass actuator specification

Table 3. Mod. water valve specification

Table 1. OA/RA actuator specification

UV-SVN03F-EN 9

Table 4. Isolation valve specification

ECM Application Notes

The new Trane BLDC system has some notable differences to traditional designs.

RPM Mode

The motors are programmed from the factory to run in rpm mode and will not change rpm based on external static pressure, except at the performance limits of the motor/controller. For ducted units, the units are shipped with the rpm set for 0.2 in. ESP for High, Medium, and Low speeds. The speeds can for high, medium, and low operation, but should not be changed for the electric heat actuation speeds.

Generally, the fans deliver less cfm for the same rpm, if the static is increased and the power will decrease. The fan will deliver more cfm for the same rpm, if the static is decreased and the fan power will increase. A unit with high static configuration should not be used to free-deliver air (i.e., with no ducting attached).

Field Power Wiring

Note: This product uses an electronic variable speed

motor control, which includes a line reactor to minimize power line harmonic currents. It is recommended that good wiring practices be followed to manage building electrical power system harmonic voltages and currents to avoid electrical system problems or other equipment interaction.

Performance Boundaries

While the speeds of the fan motors can be adjusted, never program a fan speed higher than 1700 rpm, or lower than 450 rpm. In many cases, units configured for high-static operation will not achieve the desired rpm if the ESP of the unit is too low, or the unit is allowed to “free-discharge.” The ECM engine contains settings that will limit the output power of the motor under these overload conditions. If the motors cannot achieve rpm close to the target for a specific period of time, the unit will disable electric heat and fanstatus indicators.

perform the function of a two 3-pole contactors.

Figure 1. Sample arrangement: electric heat relay

Troubleshooting Other Unit Functions

In some cases, the normal or abnormal operation of the BLDC system may interact with other components in the system. Generally, verification of the engine and adapter boards’ wiring and configuration should be checked if there are unexplained abnormalities in other areas of the unit:

1. Valve operation

2. Electric Heat operation

3. Changeover sensor operation

4. Damper operation

5. Condensate overflow switch

A high degree of protection is provided on electric heat

nits. If electric heat fails to actuate, it may be because of

u one of the following events:

1. Fans are failing to meet target speed. If a second motor is not present, all settings for speeds for Motor 2 should be set to 0000.

2. Hot water may be available in the changeover coil.

3. The connection to analogue input 1 on the Tracer ZN controlle

4. Target speeds for motor a. The  parameter may be set incorrectly.

b. The

r may be reversed in polarity.

s may be set too high:

 parameter may be set incorrectly.

MCA/MFS and Power Draw

The Trane BLDC motors have variable output but are shipped at specific settings to deliver proper performance and reliability. The power draw indicated in the catalogue indicates the power consumed when applied properly (as shipped and with the nominal ESP applied). However, the nameplate of the unit indicates the maximum input draw of the motor, as the motor settings can be changed to draw more power.

Electric Heat Relays

For quiet operation, the new BLDC units employ power relays instead of definite purpose contactors for electric heat actuation. The coils of multiple relays are hooked in parallel to simulate a multi-pole contactor, as shown in

Figure 1. In Figure 1, two sets of three relays are used to

10 UV-SVN03F-EN

Dimensions and Weights

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.

Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring!

NOTICE:

Equipment Damage!

Do not locate the unit in areas subject to freezing. Pipes could burst at lower temperature resulting in equipment damage.

Attention should be given to service clearance and technician safety. The unit should contain enough space for service personnel to perform maintenance or repair. Provide sufficient room to make water, and electrical connection(s).

Table 5. VUVE general data

Description

Unit length w/o end covers (in.)698193105 Unit depth - standard (in.) 16-5/8 16-5/8 16-5/8 16-5/8

Unit depth - with false back (in.) 21-1/4 21-1/4 21-1/4 21-1/4 Unit height - standard (in.) 30303030 Shipping weight (lb) 320 405 450 470 Nominal filter size (in.) and quantity 14 x 20 x 1 (2) 14 x 24 x 1 (1) 14 x 20 x 1 (2) 14 x 24 x 1 (2)

Dynamic air filter nominal size (in.) and quantity 7 x 42 x 1 (1) 7 x 54 x 1 (1) 7 x 66 x 1 (1) 7 x 78 x 1 (1) Drain connection size (in.) 7/8 I.D. hose 7/8 I.D. hose 7/8 I.D. hose 7/8 I.D. hose Fan type / quantity FC / 2 FC / 2 FC / 4 FC / 4 Motor data

Quantity1122

Horsepower (each) 1/4 1/4 1/4 1/4

Coil volume (gal)

Coil type A0.178 0.228 0.277 0.327

0750 1000 1250 1500

B0.311 0.410 0.510 0.610 C0.311 0.410 0.510 0.610 D0.444 0.571 0.704 0.931 E0.444 0.571 0.704 0.931

F0.610 0.809 1.014 1.213 G0.610 0.809 1.014 1.213 H0.395 0.593 0.742 0.837

Improperly installed and grounded field wiring poses FIRE & ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes. All field wiring MUST be performed by qualified personnel.

Failure to follow these requirements could result in death or serious injury.

A 36-inch clearance at the unit front is sufficient for maintenance and service of the equipment.

Unit size

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

WARNING

Table 6. Control Methodology

Fan Speed

FSS 3 or infinite CSTI 3 or infinite ZN520 3 UC400 Infinite

(a) With a field-supplied 2–10 Vdc controller.

UV-SVN03F-EN 11

(a) (a)

Table 7. Control Sequences

Fan Speeds

(b)

(a)

(b)

(a)

1 1 2 2

DX operation Electric heat operation Sidewall Exhaust ERSA

(a) Fan speed during sequence operation. (b) Unit Ventilator when operating with option.

Dimensions and Weights

UNIT SIZE

075

100

125

150

NO. FANS

69"

81"

93"

105"

42"

54"

66"

78"

NOTE:

1. THE UNIT LENGTH DOES NOT INCLUDE 5/8" END PANELS.

2. THE POWER CONNECTION IS MADE IN THE LEFT HAND END POCKET FOR ALL OPTIONS BUT ELECTRIC HEAT.

3. THE POWER CONNECTION FOR ELECTRIC HEAT OPTION IS MADE IN THE RIGHT HAND END POCKET.

8 1/8"

(4)K.O. FOR PIPING OR ELECTRICAL

FRESH AIR OPENING (OPTIONAL)

5 3/4"

21/4"

13 1/2"

12 1/2"

22 5/8"

3/4"

3 3/4"

BACK VIEW

12 1/4"

FRONT OF UNIT

GRILLE

RETURN AIR

(OPTIONAL)

UNIT MOUNTED

FAN SWITCH

(OPTIONAL)

21/4"

16 5/8"

(2)9" x 9"[229mm x 229mm] KNOCKOUTS IN BOTTOM

10 7/8"

3 3/4"

TOP VIEW

13"

5 1/4"

9 1/4"

14 3/8"

21/4"

21/2"

23/8"

30"

SIDE VIEW

7/8" O.D. AUX. DRAIN CONN.

(optional)

PIPE CHASE

11"

7/8" O.D. DRAIN CONN.

16 5/8"

Figure 2. Standard depth unit

9 1/4

12 UV-SVN03F-EN

Figure 3. Falseback unit

UNIT SIZE

075

100

125

150

NO. FANS

69"

81"

93"

105"

42"

54"

66"

78"

25" to 29"

NOTE:

1. THE UNIT LENGTH DOES NOT INCLUDE 5/8" END PANELS.

2. THE POWER CONNECTION IS MADE IN THE LEFT HAND END POCKET FOR ALL OPTIONS BUT ELECTRIC HEAT.

3. THE POWER CONNECTION FOR ELECTRIC HEAT OPTION IS MADE IN THE RIGHT HAND END POCKET.

14 3/8"

21/4"

21/2"

16 5/8"

23/8"

30"

21 1/4"

SIDE VIEW

Depicting Step-down

Falseback

18"

STEP-DOWN

IS IN 1"

INCREMENTS

21/4"

21/2"

16 5/8"

23/8"

30"

21 1/4"

SIDE VIEW

18"

5 1/4"

PIPE CHASE

14 3/8"

11"

9 1/4"

PIPE

CHAS

7/8" O.D. DRAIN CONN.

7/8" O.D. AUX. DRAIN CONN.

(optional)

FRONT OF UNIT

RETURN AIR

(OPTIONAL)

FALSEBACK

(4)K.O. FOR PIPING OR ELECTRICAL

5 3/4"

12 1/2"

22 5/8"

21/4"

BACK VIEW

8 1/8"

12 1/4"

FRESH AIR OPENING (OPTIONAL)

13 1/2"

3/4"

3 3/4"

STEP-DOWN FALSEBACK FOR RETROFIT APPLICATIONS WHERE WINDOW SEAL MAY INTERFERE WITH UNIT INSTALLATION

(OPTIONAL)

STEP-DOWN FALSEBACK

4. THE UNIT SHOWN INCLUDES THE INSULATED HORIZONTAL BAFFLE OPTION.

21/4"

(2)9" x 9"[229mm x 229mm] KNOCKOUTS IN BOTTOM

10 7/8"

3 3/4"

TOP VIEW

13"

FALSEBACK

Dimensions and Weights

UV-SVN03F-EN 13

Dimensions and Weights

UNIT SIZE

075

100

125

150

NO. FANS

69"

81"

93"

105"

42"

54"

66"

78"

NOTE:

1. THE UNIT LENGTH DOES NOT INCLUDE 5/8" END PANELS.

2. THE POWER CONNECTION IS MADE IN THE LEFT HAND END POCKET FOR ALL OPTIONS BUT ELECTRIC HEAT.

3. THE POWER CONNECTION FOR ELECTRIC HEAT OPTION IS MADE IN THE RIGHT HAND END POCKET.

21/2"

16 5/8"

23/8"

30"

21 1/4"

SIDE VIEW

PIPE CHASE

14 3/8"

21/4"

5 1/4"

11"

9 1/4"

3/8

9 1/

2/2

0"CHASE

7/8" O.D. DRAIN CONN.

7/8" O.D. AUX. DRAIN CONN.

(optional)

(4)K.O. FOR PI PING OR ELECTRICAL

FRESH AIR OPENING

5 3/4"

21/4"

13 1/2"

12 1/2"

22 5/8"

3/4"

3 3/4"

RETURN AIR OPENING

BACK VIEW

8 1/8"

12 1/4"

FALSEBACK

BARRIER

21/4"

13"

(2)9" x 9"[229mm x 229mm] KNOCKOUTS IN BOTTOM

10 7/8"

3 3/4"

TOP VIEW

FALSEBACK

Figure 4. Dynamic air barrier unit

14 UV-SVN03F-EN

Figure 5. End covers

Dimensions and Weights

UV-SVN03F-EN 15

Dimensions and Weights

Figure 6. Wall boxes

16 UV-SVN03F-EN

Figure 7. Crossover piping

16 5/8" DEPTH UNIT

FLUSH

7/8" I.D. FIELD

CONN. W/ SHUT

OFF VALVE

Dimensions and Weights

1 1/2"

RETURN

SUPPLY

TOP VIEW

21 1/4" DEPTH UNIT

FLUSH

TOP VIEW

Note: 1-3/8 in. OD and 2-1/8 in. ID crossover piping

1. Crossover piping is available for all 2- or 4-pipe coils selections. Trane provides the crossover for the hot water only. The crossover pipe is factory insulated with 3/8 in.-thick insulation.

2. Expansion compensation between the factory piping package and the crossover piping is achieved using a flex hose rated at 250 psi working pressure. Flex hose

s only available with factory mounted piping

i packages.

3. Expansion compensation for the must be handled external to the unit ventilator.

4. Crossover connections term pocket as the heating coil on all 2- and 4-pipe coils.

crossover piping

inate in the same end

3 1/2" 4 1/2"

7/8" I.D. FIELD

CONN. W/ SHUT

OFF VALVE

3 1/2" 4 1/2"

SIDE VIEW

1 1/4"

8 1/4" 10"

SIDE VIEW

19 3/8"

3 5/8" 5 3/8"

24"

RETURN

SUPPLY

24"

19 3/8"

UV-SVN03F-EN 17

Receiving and Handling

The unit ventilator is packaged in clear stretch wrap and protective cardboard.

Note: Before unwrapping, make a visual inspection of the

unit for any damage that may have occurred during shipping. All orders are shipped FOB (Freight on Board) from the factory, therefore any claims must be made with the delivering carrier.

Following visual inspection, carefully begin the following procedures:

1. Carefully remove the stretch wrap and the top cardboard cover.

2. Remove remaining cardboard blocking.

3. Remove the bottom access panel with a 7/32-in. Allen

wrenc

4. Verify nameplate sales order number is correct.

5. Remove shipping bracket from the lower rear corners

f the unit and shipping skid. Access to the screws

o holding unit to the skid is obtained inside the unit.

Figure 8. Shipping skid removal

6. Rotate fan wheels manually. Wheels should move freely and be in proper alignment. Visually inspect the fan area for obstructions or shipping damage.

7. Remove all applicable knock-outs for coil piping and electrical connections

Figure 4, p. 14).

18 UV-SVN03F-EN

(see Figure 2, p. 12 through

Pre-Installation

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 shipping damage. Do not sign the bill of lading

accepting the unit(s) until inspection has been completed. 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.

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

from the elements.

them

of the unit, for signs of

NOTICE:

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 on the interior insulation, the insulation should be removed and replaced prior to operating the system.

3. Make provisions for continuous venting of the covered units to prevent moisture from standing on the unit(s) surfaces.

4. Do not stack units.

UV-SVN03F-EN 19

Installation—Mechanical

Grout

Weep Holes

Rubber Seals

Unit

Outside Wall

Floor

Interior Wall w/ sheetrock

Water dam sloped toward exterior

Weep Holes

Caulking

Outside Wall

Rubber Seals

Unit

Interior Wall w/ sheetrock

Water dam sloped toward exterior

Flanged wallbox

Wall Box Installation

The following instructions are general recommendations for installing wall intake boxes. Consult the architectural plans for specific requirements.

Additional materials required to complete any specific installations (such as duct connections, metal mounting plates, or flanges) are not furnished by Trane.

For best results, all air intake boxes should be removable from outside of the building. Weep holes must be at the bottom to permit free drainage. A positive air and moisture seal should be provided around all edges.

General Instructions. Trane wall boxes are illustrated in

the dimensional section of this manual. Dimensions are actual, and may be used to define the wall opening.

Vertical louvers in the wall intake box provide extra strength for a high load bearing capacity. The lintel may be omitted on masonry wall installations.

Weep holes are provided in the outside face of the bottom channel in the wallbox frame. Install all wall boxes to permit free drainage through the weep holes to the outside of the building.

All wallboxes are furnished with diamond pattern expanded aluminum bird screen.

Note: V1 and V2 (vertical) wall models are all unflanged.

H2, V3, and V6 are flanged.

Figure 9. Masonry wall installation

Figure 10. Flanged wall box installation in 2-in. curtain

wall

Installation in Masonry Walls. A typical method of

installing the wall box in a masonry wall opening is shown in Figure 9.

Grout the top and bottom of the wall box frame as noted. A sloped water dam located in the space between the unit and wall facilitates moisture drainage. Grouting at the ends of the intake box will complete the seal between the wall box frame and the masonry opening.

Installation in Curtain Walls. In all cases, the wall

intake box should be caulked to provide a tight, weatherproof seal (see Figure 10).

Note: A minimum of 2-1/8 in. of clearance must be

maintained between the exterior wall and back of the unit. Failure to provide this gap will not allow the wall box to fit properly.

20 UV-SVN03F-EN

General Installation Checks

The checklist below is a summary of the steps required to successfully install a unit. This checklist is intended to acquaint the installing personnel with procedures required in the installation process. It does not replace the detailed instructions called out in the applicable sections of this manual.

1. Carefully remove the stretch wrap and top cardboard cover. Check the unit for shipping damage and material shortage; file a freight claim and notify appropriate sales representation. If end panels have been ordered, the panel will already be mounted to the unit.

Note: The unit ventilator is packaged in clear stretch

wrap to allow for immediate visual inspection. A protective cardboard cover helps prevent scratching and other cosmetic blemishes during transport.

2. Remove remaining cardboard blocking.

3. Remove the unit’s left front panel sales order number is correct. It is located behind the control box.

to verify nameplate/

Installation—Mechanical

4. Remove shipping bracket from the lower rear corners of the unit to separate the unit from the skid. Access to the screws holding the bracket to the skid is obtained inside the unit.

5. Rotate the fan wheels manually move freely and be in proper alignment. Visually inspect the fan area for obstructions or shipping damage.

6. Remove all applicable knockouts for coil electrical connections.

. The wheels should

piping and

Location Considerations

Selecting the appropriate location for installing a unit is very important. The following factors should be considered:

WARNI NG

Heavy Object!

Floor structure must be strong enough to support the weight of the unit. Consult the structural plans, and have a structural engineer ensure the floor can withstand the weight of the unit. Inadequate structural support could result in unit falling.

Failure to follow recommendations could result in death or serious injury.

5. Internal access to the unit is pr front panel. Sufficient space should be allowed to lift the panel for maintenance purposes.

6. Ensure the floor surface is level.

Note: The unit leveling legs can be adjusted to

accommodate slight out-of-level installation surfaces.

ovided by the removable

Unit Mounting

Note: All wall intake boxes should be installed prior to

mounting the unit ventilator. Refer to p. 20 for wall box installation instructions.

The 1/2 in. mounting or anchoring holes are located on the back of the unit on each end (see Figure 11, p. 22).

Note: All mounting fasteners are to be provided by the

installer.

1. Floor design must have sufficient structure to withstand the weight of the unit while allowing for openings in the floor for a return air duct, electrical and piping supply lines fed through the floor. Refer to

“Dimensions and Weights,” p. 11 for unit weights.

2. Wall space design should allow the unit to be mounted

the wall securely. The wall surface behind the unit

to should be smooth and level. Wall and floor moldings should be removed prior to installation. A wall slightly out of level may cause problems with unconditioned air leaking into the room. Remove any object projecting more then 1/8 in. (0.3175 cm) from the wall surface.

Note: Ad

3. There are two removable knock unit, on either end, for piping and electrical supply lines. A pipe chase is located in the upper back portion of the unit for crossover piping. The outside air opening is located in the lower back of the unit and the path to the wallbox on the outside wall should be unobstructed.

4. The physical layout of the any accessories ordered with the unit. Conditioned air is distributed through the grille on top of the unit and returned through the return air grille on the bottom of the unit. Avoid placing any objects that may obstruct either grille or interfere with airflow.

ditional gasket or furr strips may be installed

to accommodate for an uneven wall.

-outs in the rear of the

room should accommodate

UV-SVN03F-EN 21

Installation—Mechanical

Figure 11. Mounting hole location

075 Standard unit (no falseback) 1.31 13.50 2.75 66.39 10.38 45.64

Standard falseback 1.00 2.13 26.00 67.00 10.00 47.00 29 in. stepdown falseback 1.00 2.13 24.44 67.00 10.00 47.00 28 in. stepdown falseback 1.00 2.13 23.44 67.00 10.00 47.00 27 in. stepdown falseback 1.00 2.13 22.44 67.00 10.00 47.00 26 in. stepdown falseback 1.00 2.13 21.44 67.00 10.00 47.00 25 in. stepdown falseback 1.00 2.13 20.44 67.00 10.00 47.00

100 Standard unit (no falseback) 1.31 13.50 2.75 78.39 10.38 57.64

Standard falseback 1.00 2.13 26.00 79.00 10.00 59.00 29 in. stepdown falseback 1.00 2.13 24.44 79.00 10.00 59.00 28 in. stepdown falseback 1.00 2.13 23.44 79.00 10.00 59.00 27 in. stepdown falseback 1.00 2.13 22.44 79.00 10.00 59.00 26 in. stepdown falseback 1.00 2.13 21.44 79.00 10.00 59.00 25 in. stepdown falseback 1.00 2.13 20.44 79.00 10.00 59.00

125 Standard unit (no falseback) 1.31 13.50 2.75 90.39 10.38 69.64

Standard falseback 1.00 2.13 26.00 91.00 10.00 71.00 29 in. stepdown falseback 1.00 2.13 24.44 91.00 10.00 71.00 28 in. stepdown falseback 1.00 2.13 23.44 91.00 10.00 71.00 27 in. stepdown falseback 1.00 2.13 22.44 91.00 10.00 71.00 26 in. stepdown falseback 1.00 2.13 21.44 91.00 10.00 71.00 25 in. stepdown falseback 1.00 2.13 20.44 91.00 10.00 71.00

150 Standard unit (no falseback) 1.31 13.50 2.75 102.39 10.38 81.64

Standard falseback 1.00 2.13 26.00 103.00 10.00 83.00 29 in. stepdown falseback 1.00 2.13 24.44 103.00 10.00 83.00 28 in. stepdown falseback 1.00 2.13 23.44 103.00 10.00 83.00 27 in. stepdown falseback 1.00 2.13 22.44 103.00 10.00 83.00 26 in. stepdown falseback 1.00 2.13 21.44 103.00 10.00 83.00 25 in. stepdown falseback 1.00 2.13 20.44 103.00 10.00 83.00

ABCDE F

falseback metal. Use these holes rather than the holes

WARNI NG

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.

located in the unit’s end pockets.

Note: Ensure the unit is level. Coils and drain pans

inside the unit are pitched properly for draining before shipment.

9. Ensure the unit rests tightly ag proper seal and that air does not leak underneath the unit.

ainst the wall. Check for

7. Set the unit into selected location and adjust leveling legs if necessary to ensure level fit.

Note: Care

should be taken when handling the unit to ensure that the front return air grille does not bend.

8. Push the unit tightly against

the wall to compress the

seal on the back edge of the unit and intake opening.

Subbase (Option)

A subbase may be used to increase the unit height and aid in leveling the unit. The subbase is shipped separately for field installation. Slots and leveling screws are provided on the subbase.

1. Remove the leveling legs provided with the unit (see

Figure 12).

Anchor the unit by using the 1/2 in. mounting holes in

th end pockets.

Units containing a falsebac

k: The falseback unit

ventilator contains mounting holes located on the

22 UV-SVN03F-EN

Figure 12. Subbase with leveling legs

Unit Base

Installation—Mechanical

Weld Nuts

2"- 6"

Subbase

For leveling legs

2. Set the unit on the subbase and fasten with four, 3/8 in. x 16 ft x 1 in. hex head cap screws and 3/8 in. lock washers.

Note: Hex

screws and lock washers are provided by the factory. They are located in a baggy and are used to attach the base to the unit ventilator. Pre-drilled slots in the subbase flange will line up with the weld nuts in the bottom of the unit.

3. The bottom of the subbase has weld nuts in four slots. Place the leveling le

gs in those slots and level the unit.

End Panels

When ordered as an option, end covers ship already attached to the vertical unit ventilator. The following section is for installing end covers purchased as an addon.

It is recommended end panels be installed on the unit ventilator after all piping, wiring and accessory installation is completed. To install the end panel:

1. Insert the four factory provided metal studs into the four pre-mounted nuts on the inside of the panel.

2. Align each stud with the four pre-drilled holes on the

de of the unit.

3. Secure the panel to the unit by fastening wit factory provided nuts.

4. Do not overtighten screws.

h the four

NOTICE:

Equipment Damage!

Do not run units for any length of time without all panels and filters properly installed. Failure to do so could result in equipment failure.

UV-SVN03F-EN 23

Installation—Piping

Piping Installation

Before installation of piping package, the shipping bracket holding the piping in place, must be removed.

Proper installation of piping is necessary to provide efficient coil operation and to prevent damage during operation. Follow standard piping practices and include all accessories as necessary.

Piping connection knockouts are shown in “Dimensions

and Weights,” p. 11. Field connection types and sizes for

unit coils are listed in Tab le 8. These sizes are provided for field piping connection.

Table 8. Coil data for field piping

Coil type Connection location Field connection size

4-pipe chilled water / hot water

2-pipe changeover coil Left or right 7/8 in. OD Hot water only Left or right 7/8 in. OD Steam Left or right 1 in. MPT Chilled water / electric

heat Chilled water / steam Left or right 7/8 in. OD / 1 in. MPT DX Left 7/8 in. suction, 3/8 in. DX / hot water Left cooling / right

DX / steam Left cooling / right

DX / electric heat Left cooling / right

A 7/8 in. OD condensate drain connection is provided on the chilled water supply end of the unit.

1. Attach a flexible condensate drain hose over the drain pan connection and secure with a hose clamp.

The drain pan on the vertical is vacuum-molded with a drain connection and P-trap on the cooling coil, connection side.

Note: Condensate removal to the main system

should be made through the bottom of the unit ventilator. If other location for condensate removal is desired, a specific field cut-out for the connection should be made in the back of the unit ventilator. To help avoid cold air infiltration, the field cut-out should only be large enough to allow for the condensate hose to exit the unit.

To field reverse the slope of a vertical unit drain pan:

2. Slide out fan deck (disconnecting the condensate line and fan plug will release fan deck for sliding).

3. Remove pipe clamp that hold pan.

4. Remove clips that hold the drain pan in-place.

5. Lift and rotate the drain pan.

Left or right (opposite ends)

Left cooling 7/8 in. OD

heating

7/8 in. OD / 5/8 in. OD

7/8 in. suction, 3/8 in. / 5/8 in. OD

7/8 in. suction, 3/8 in. / 1 in. MPT

7/8 in. suction, 3/8 in. / NA

the p-trap to the drain

6. Reconnect p-trap to the drai

n pan and replace clips to

secure the pan to the fan deck.

7. After the condensate drain piping has been completed, heck water flow to ensure the system properly carries

c and away all condensate accumulation.

Note: A P

-trap is factory supplied in every vertical unit

ventilator.

Trane Piping Packages (Option). Trane Standard

Piping Package includes a 2- or 3-way valve with bypass balance valve, ball valves, Pete’s plugs and unions. A strainer and circuit balancing valve are optional.

All union connections should be tightened in the field. Units are shipped with union connections hand tightened only in the factory.

Note: All connections made in the field should be sweat

connections.

Piping packages are not shipped insulated. Any insulation should be provided in the field by the installing contractor.

The auxiliary drain pan (optional) is the main condensate connection to the unit when specified. The chilled water or DX coil drain pan will empty into the auxiliary drain pan if a factory-installed, auxiliary pan is ordered. All field-piping condensate connections should be made at the auxiliary drain pan.

Installation Crossover Piping

Crossover piping is available for all hydronic coils. It is either 1-3/8 in. \[34.9\] or 2-1/8 in. \[54\] in diameter (OD) as specified by the customer. Crossover piping can be found in either the left or right hand end pocket. Refer to

“Dimensions and Weights,” p. 11 for dimensional data.

On 4-pipe coils, crossover piping connects to the main cooling coil.

Factory insulation is provided on all crossover piping.

When a Trane piping package is ordered, it is installed with the connections made to the supply and return of both the coil and the crossover piping. However, supply and return connections must be made in the field when a piping package is furnished by the installer.

The crossover piping is located at the back of the unit along the wall and the ends of the piping are flush with the end of the unit.

Expansion compensation between the piping package and the crossover piping is achieved using flex hoses rated at 250 psi working pressure. Expansion compensation for the crossover piping must be handled external to the unit ventilator.

Split System Units

The following refrigerant piping and interconnecting wiring instructions apply to unit ventilators with direct expansion type cooling coils used in conjunction with aircooled condensing units. Reference must also be made to

24 UV-SVN03F-EN

Installation—Piping

Vacuum Equalizer

H= 12" minimum

F&T Trap

See text for sizing

Gravity flow to vented receiver

Coil

To Condensate

return

Temp. Regulating Valve

the condensing unit installation and wiring manuals which are shipped with the condensing unit.

Note: The ETL listing mark applied to a unit ventilator

does not apply to any associated refrigerant condensing unit.

Refrigerant Piping

WARNI NG

Hazard of Explosion and Deadly Gases!

Unit ventilators with direct expansion cooling contain a nitrogen holding charge in the evaporator coils. Connections are “pinched-off” at the factory.

To connect the condensing unit lines, cut off the stubouts and swage. The condensing unit lines can then be brought into the swage and brazed. Trane recommends the use of nitrogen purge when brazing refrigerant lines to prevent formation of oxides in the lines.

Install the refrigerant suction and liquid lines as described in the condensing unit installation instructions. The TXV is factory installed on the unit ventilator. Piping should be run straight out through the back of the unit. Access piping knockouts are located in the rear panels of the unit, as shown “Dimensions and Weights,” p. 11.

Recommended refrigerant line connections for various unit combinations are given in Table 8, p. 24. Typical Superheat Charging Charts are shown in the Trane Service Facts found in the condensing unit section manual. Refrigerant charge weights can also be determined with your local Trane sales engineer using a valid Trane Selection Program.

There are detailed methods for determining condensate load under various operating conditions. However, in most cases this is not necessary if the coils are piped as shown in Figure 13. Follow the procedure documented in the ASHRAE Systems Handbook, Steam Systems.

Figure 13. Steam piping

Modulating Water Valves (Option)

The actuator on the valve is a 24V, 3-point floating valve. The actuator can be easily removed from the valve body by pressing in on the locking tab and rotating the actuator 45° counter-clockwise (see Figure 14). The 2-way valves are bi-directional flow; the 3-way valves can be mixing or diverting (see Figure 15, p. 26).

Note: The actuator must be removed if soldering is being

conducted near the valve. High heat may cause damage to the actuator’s plastic body/ mechanisms.

Figure 14. Remove modulating valve actuator by

pressing in tab (inset) and turning actuator 45° counterclockwise

Steam Piping

When air, water or another product is heated, the temperature or heat transfer rate can be regulated by a modulating steam pressure control valve. Since pressure and temperature do not vary at the same rate as load, the steam trap capacity, which is determined by the pressure differential between the trap inlet and outlet, may be adequate at full load, but not some lesser load.

UV-SVN03F-EN 25

Installation—Piping

2-way valve 3-way valve

Figure 15. Steam piping: 2- and 3-way valves

Closed

Open

AB<->B

AB<->A

On applications without the optional, factory installed piping packages, it is important to remove the cartridge assembly from the valve body with the provided tool (see

Figure 16).

Figure 16. Cartridge removal tool

Plumbing the Valve

The valve may be plumbed in any angle but preferably not with the actuator below horizontal level of the body. Make sure there is enough room around the actuator for servicing or replacement.

For use in diverting applications, the valve is installed with the flow water entering through the bottom AB port and diverting through end ports A or B. In mixing applications the valve is installed with inlet to A or B and outlet through AB.

Mount directly to the tube or pipe. Do not grip the actuator while making or tightening plumbing connections. Either hold valve body by hand or attach an adjustable spanner (38 mm/1-1/2”) across the hexagonal or flat faces on the valve body (see Figure 17).

Figure 17. Proper plumbing technique for modulating

valves

Use the following steps to complete cartridge assembly removal:

1. Remove valve actuator.

2. Remove the cartridge assembly from the valve body with the enclosed tool.

3. Solder the valve in accordance with practices.

4. Re-install the cartridge after until it bottoms out. The top surface of the cartridge will be flush with the top edge of the body casting.

NOTICE:

Over-tightening!

Do not over-tighten. Maximum torque is 40 in·lb. Overtightening could result in equipment damage.

Manually Opening Valve

The manual opener can be manipulated only when in the up position. The A port can be manually opened by firmly pushing the white manual lever down to the midway position and pushing the lever in. In this position, both A and B ports are open. This “manual open” position may be used for filling, venting and draining the system or opening the valve during power failure.

The valve can be closed by depressing the white lever lightly and then pulling the lever outward. The valve and actuator will return to the automatic position when power is restored.

Note: If the valve is powered open, it cannot be manually

closed, unless the actuator is removed.

normal soldering

soldering by tightening

5. Replace valve actuator and wire in accordance with instructions.

26 UV-SVN03F-EN

Installation—Piping

Wiring the Valve

WARNI NG

Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring!

Failure to follow these requirements could result in death or serious injury.

A controller and a separate transformer is required to operate each valve (see Figure 18 and Figure 19, p. 27). Port A “open” and “closed” denote valve open and closed positions.

Figure 18. Wiring for modulating valve actuator

enough room to remove actuator cover for servicing. Mount the valve on the tube or pipe.

Note: Ensure the flow through the valve is in the direction

indicated by the arrow stamped on the valve body.

Figure 20. Proper mounting for isolation valves

Servicing/Removal of Valves

The actuator can be removed from the valve body. Removing the actuator is recommended if soldering is being conducted near the valve. To remove the actuator:

1. Place the manual operating lever to the Open position (see Figure 21, p. 27).

2. Depress the locking button and lift actuator until it separates from the valve body.

To install the actuator

3. Align the slot on the shaft of the body notch on side of body (see Figure 22, p. 28).

to the valve body:

valve with the valve

Figure 19. Wiring for modulating valve actuator

The typical floating controller is an SPDT controller with a center-off position. On a change in temperature from the set point, the controller will close the normally open (NO) or normally closed (NC) contacts, driving the valve to an intermediate position until a further change at the controller.

The valve is set between the limits of the controller to satisfy various load requirements. In the event of power failure, the valve will stay in the position it was in before loss of power. When power is restored, the valve will again respond to controller demand.

Isolation Valves Installation

The valve can be mounted in any position on a vertical line. If the valve is mounted horizontally, the actuator must be even with or above the center line. Make sure there is

Figure 21. Removing valve actuator

UV-SVN03F-EN 27

Installation—Piping

Figure 22. Installing isolation valve

4. Install body valve into pipe.

WARNI NG

Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring!

Failure to follow these requirements could result in death or serious injury.

Figure 23. Preparation for soldering

3. Sweat the joints, keeping outer surface free from solder.

Note: Do not use silver solder due to high

temperature requirements.

Heating Coils with Direct Expansion Cooling

Heating options for direct expansion cooling in the unit ventilator are hot water, steam or electric heat.

These coils facilitate direct expansion cooling with standard capacities. The supply and return connections are located in the right-hand end pocket. Hot water field connections are made with a 5/8 in. \[15.9\] OD male sweated joint, while steam coils have a 1 in. \[25.4\] male pipe thread (MPT) connection. Refer to Table 8, p. 24 for coil connection sizes.

Electric heat coils provide a third way to supply heating to the direct expansion cooling. The coil utilizes three to six preheat elements which are factory-wired.

5. Wiring connections may be made either before or after actuator installed on body.

6. Place the manual operating leve OPEN position.

7. Align actuator coupling to slot on the shaf body and fit the head onto the valve body to ensure the shaft seats correctly (see Figure 20, p. 27).

8. Press the actuator and valve body until it secures together

r on the actuator in the

t of the valve

Soldering Procedures

1. Remove actuator as stated earlier.

2. Place valves on the pipe. Rotate valve stem so the shaf slot points at the notch in the side of the body (90° to flow direction). This protects the plug inside the valve by removing it from the seat (see Figure 23).

28 UV-SVN03F-EN

Installation—Sensors

X13790844-01 (unit)

X13790886-04 (unit; 3-speed)

X13790886-03 (unit; 2-speed)

X13790842-02 (wall) X13651467-01 (comm)

X13790886-04 (wall; 3-speed)

X13790886-03 (wall; 2-speed)

X13511527-01 (wall) X13790849-01 (unit) X13651467-01 (comm)

X13790886-04 (wall) X13790841-02 (unit)

Control Options

Figure 24. Unit mtd temp sensor

(SP, OCC/UNOCC, OALMH) (Electric heat with auto and off speeds)

Figure 25. Unit mtd display sensor

(SP, OCC/UNOCC, COMM)

Figure 26. Unit mtd display sensor

(SP, OCC/UNOCC, COMM)

Figure 28. Wall mtd display sensor

(SP, OCC/UNOCC, COMM)

Figure 29. Wall mtd display sensor

(SP, OCC/UNOCC, COMM)

Figure 30. Unit mtd FSS (OALMH),

wall mtd temp sensor (SP, OCC/UNOCC, COMM)

Figure 27. Wall mtd temp sensor

(SP, OCC/UNOCC, OALMH, COMM)

UV-SVN03F-EN 29

Figure 31. Unit mtd FSS (OALMH),

wall mtd display temp sensor (SP, OCC/UNOCC, COMM)

Installation—Sensors

X13790886-03 (wall) X13790475-01 (unit)

X13790492-01 (wall) X13790855-01 (unit)

X13790822-04 (wall) X13790855-01 (unit; 3-speed)

X13790822-01 (wall) X13790855-01 (unit; 2-speed)

Figure 32. Unit mtd FSS (OLH),

wall mtd display temp sensor (SP, OCC/UNOCC, COMM)

Figure 33. Wireless temp sensor

(SP, OCC/UNOCC, OALMH, COMM)

Installing Wall-Mounted Wired Sensors

Reference the wall-mounted zone sensor dimensions in

Figure 36, p. 30. Position the sensor on an inside wall three

to five feet above the floor and at least 18 inches from the nearest outside wall. Installing the sensor at a lower height may give the advantage of monitoring the temperature closer to the zone, but it also exposes the sensor to airflow obstructions. Ensure that air flows freely over the sensor.

Figure 36. Wall-mounted wired and wireless zone

sensor dimensions

Figure 34. Wireless temp sensor with display

(SP, OCC/UNOCC, COMM)

Figure 35. Wireless temp sensor with display

(SP, OCC/UNOCC, COMM)

30 UV-SVN03F-EN

1. 0.31 in

2. TYP R.07 in (R1.9)

3. TYP 0.24 in)

4. 2.9 in

5. 1.08 in

6. 0.12 in

7. 3.39 in

8. 4.68 in

9. 2.48 in

10. 0.6 3 in

11. 1.45 in

12. 2.62 in

Sensor

When selecting a sensor location, avoid the following:

• Areas of direct sunlight

• Areas in the direct airstream of air diffusers

• Exterior walls and other walls that have a differential between the two sides

temperature

+ 81 hidden pages

Trane VUVE Installation and Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Warnings, Cautions and Notices

Introduction

Model Number Descriptions

General Information

Unit Description

Options

ECM Application Notes

Dimensions and Weights

Unit Location and Clearances

Receiving and Handling

Pre-Installation

Jobsite Inspection

Jobsite Storage

Installation—Mechanical

Wall Box Installation

General Installation Checks

Location Considerations

Unit Mounting

Installation—Piping

Piping Installation

Refrigerant Piping

Modulating Water Valves (Option)

Steam Piping

Heating Coils with Direct Expansion Cooling

Installation—Sensors

Control Options

Installing Wall-Mounted Wired Sensors