Trane UniTrane Fan Coil, Force Flo Cabinet Heater Installation, Operation And Maintenance Manual

Page 1

Installation, Operation, and Maintenance

UniTrane™ Fan Coil and Force-Flo™ Cabinet Heater

200 - 1200 CFM Models FC and FF, Low Vertical Models FCKB and FCLB

Only qualified personnel should install and service the equipment. The ins tallation, starting up, and servicing of heating, ventilating, and airconditioning 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 w orking on the equipment, observe all preca utions in the literature and on the tags, stickers, and labels that are attached to the equipment.

Marc h 2014

SAFETY WARNING

UNT-SVX07E-EN

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Warnings, Cautions and Notices

Warnings, Cautions and Notices.

cautions and notices appear at appropriate intervals throughout this manual. Warnings are provided to alert installing contractors to potential hazards that could result in death or personal injury. Cautions are designed to alert personnel to hazardous situ ations 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 servicing this unit.

ATTENTION:

appropriate sections throughout this literature. Read these carefully:

WARNING

CAUTION

NOTICE:

Warnings, Cautions, and Notices appear at

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 accidents.

Note that warnings,

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 oz one 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. T rane advocates the responsible handling of all refrigerants-including industry replacements for CFCs such as HCFCs and HFCs.

municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

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 r equirements f or field wiring installat ion 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 coul d result in exposure to electrical, mechanical and chemical hazards.

• Before installing/servi cing this unit, technicians MUST put on all P ersonal Protectiv e Equipment (PPE) recommended for the work being undertaken. AL WAYS r efer to appropr iate MSDS sheets and OSHA guidelines for proper PPE.

• When work ing with or ar ound hazar dous c hemicals, ALWAYS refer to the appropriate MSDS sheets and OSHA guidelines for information on allowable personal exposure levels, proper respiratory protection and handling recommendations.

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

Failur e to f ollow r ecommendation s could resul t in death or serious injury.

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

Page 3

Table of Contents

Warnings, Cautions and Notices Model Number Descriptions

. . . . . . . . . . 2

. . . . . . . . . . . . . . 7

UniTrane™ Fan Coil/ Force Flo™ Cabinet Heater

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

UniTrane™ Fan Coil Low Vertical Model

General Information Pre-Installation

Receiving and Handling

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 13

Packaging/Shipping . . . . . . . . . . . . . . . . . 13

Identification . . . . . . . . . . . . . . . . . . . . . . . 13

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Receiving Checklist . . . . . . . . . . . . . . . . . 13

Jobsite Storage Site Preparation

Dimensions and Weights

Service Clearances Component Data Available Models

Model A Vertical Concealed . . . . . . . . . . 18

Model B Vertical Cabinet . . . . . . . . . . . . . 20

Model C Horizontal Concealed . . . . . . . . 22

Model D Horizontal Cabinet . . . . . . . . . . 24

Model E Horizontal Recessed . . . . . . . . . 26

Model F Vertical Wall Hung Cabinet . . . . 28

Model H Vertical Recessed . . . . . . . . . . . 30

Model J Vertical Slope Top Cabinet . . . . 32

Model K Low Vertical Concealed . . . . . . 34

Model L Low Vertical Cabinet . . . . . . . . . 36

Model M Inverted Vertical Cabinet . . . . . 38

Model N Inverted Vertical Recessed . . . . 40

Mode P Compact Concealed . . . . . . . . . . 42

Coil Connections

Fan Coil Vertical Units . . . . . . . . . . . . . . . 43

Fan Coil Horizontal Units . . . . . . . . . . . . . 44

Force Flo Vertical Units . . . . . . . . . . . . . . 45

Force Flo Horizontal and Inverted Uni ts . 46

Fresh Air Opening Locations

Horizontal Units . . . . . . . . . . . . . . . . . . . . 47

. . . . . . . . . . . . . . . . . . . . 12

. . . . . . . . . . . . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . . . . . . . . 14

. . . . . . . . . . . . . . . . 15

. . . . . . . . . . . . . . . . . . . . 15

. . . . . . . . . . . . . . . . . . . . . 16

. . . . . . . . . . . . . . . . . . . . . 17

. . . . . . . . . . . . . . . . . . . . . 43

. . . . . . . . . . . 47

. 10

Vertical Units . . . . . . . . . . . . . . . . . . . . . . .48

Wall Box Projection Panel

Installation—Mechanical

Installation Checklist Installing the Unit

Vertical Units . . . . . . . . . . . . . . . . . . . . . . .52

Horizontal Units . . . . . . . . . . . . . . . . . . . . .52

Cabinet Units . . . . . . . . . . . . . . . . . . . . . . .53

Recessed Units . . . . . . . . . . . . . . . . . . . . . .53

Duct Connections

Ductwork Recommendations . . . . . . . . . .54

Coil Piping and Connections

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

. . . . . . . . . . . . . . . . . . . . . . .50

. . . . . . . . . . . . . . . . .51

. . . . . . . . . . . . . . . . . . .51

. . . . . . . . . . . . . . . . . . . . .52

. . . . . . . . . . . . . . . . . . . . . .54

. . . . . . . . . . . . . .55

Factory-Installed Piping Packages Hydronic Coil Piping

Connecting Field Piping to Coil . . . . . . . . .56

Water Piping Connections

Connecting to Factory Piping . . . . . . . . . .56

. . . . . . . . . . . . . . . . . . .56

. . . . . . . . . . . . . .56

Condensate Drain Connections

Condensate Overflow Detection Device . .57

Automatic Changeover Sensor . . . . . . . . .57

Venting the Hydronic Coil . . . . . . . . . . . . .58

External Insulating Requirements Balancing Manual Circuit Setter Valve

Installation - Zone Sensors

Zone Sensor Options

ZN010 Controller Options . . . . . . . . . . . . .61

ZN510, ZN520, UC400 Controller Options 61

Installation Considerations

Location . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Placement . . . . . . . . . . . . . . . . . . . . . . . . . .63

Height Requirements . . . . . . . . . . . . . . . . .63

Mounting Surfaces . . . . . . . . . . . . . . . . . . .63

Installation

Fan Mode Switch . . . . . . . . . . . . . . . . . . . .63

Wired Zone Sensor . . . . . . . . . . . . . . . . . .64

Wireless Zone Sensors . . . . . . . . . . . . . . .64

Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . .65

. . . . . . . . . . . . . . . . . . . . . . . . . . .63

. . . . . . . . . . . . . . .61

. . . . . . . . . . . . . . . . . .61

. . . . . . . . . . . . .62

. . . . . . .55

. . . . . . . . . .56

. . . . . . . .58

. . . .58

UNT-SVX07E-EN 3

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Zone Sensor Settings

Address Setting . . . . . . . . . . . . . . . . . . . . 65

Observing Receiver for Readiness . . . . . 66

Associating Sensor to Receiver . . . . . . . 67

Testing Signal Strength and Battery . . . 67

Sensor Operations

Temporary Occupancy (Timed Override) 68

End-of-Range Temperature Values . . . . . 68

Receiver Power-up Sequence . . . . . . . . . 68

Transmission Variables . . . . . . . . . . . . . . 68

Wireless Sensor Specifications Agency Compliance Wireless Display Sensor (WDS)

Configuration Procedure . . . . . . . . . . . . . 70

Displaying Setpoint or Temperature . . . 71

Locking or Unlocking Settings . . . . . . . . 72

WDS Operating Mode . . . . . . . . . . . . . . . 72

Changing Room Temperature . . . . . . . . . 72

Changing Heating/Cooling Settings . . . . 73

Changing Fan Settings . . . . . . . . . . . . . . . 73

Requesting Temporary Occupancy . . . . 73

Error Codes . . . . . . . . . . . . . . . . . . . . . . . . 73

Lock Symbol . . . . . . . . . . . . . . . . . . . . . . . 73

Testing Signal Strength . . . . . . . . . . . . . . 73

Testing Battery Status . . . . . . . . . . . . . . . 73

Installation - Controllers

Tracer ZN510 and ZN520 Controllers

Communication Wire Specifications . . . 74

General Wiring Guidelines . . . . . . . . . . . 74

Recommended Wiring Practices . . . . . . . 74

Device Addressing . . . . . . . . . . . . . . . . . . 74

Tracer UC400 Controller

Communication Wire Specifications . . . 75

General Wiring Guidelines . . . . . . . . . . . 75

Setting the Address . . . . . . . . . . . . . . . . . 75

Power Supply

Transformer Recommendations . . . . . . . 76

Wiring Requirements . . . . . . . . . . . . . . . . 77

Connecting Wires . . . . . . . . . . . . . . . . . . . 77

Power ON Check . . . . . . . . . . . . . . . . . . . . 77

4 UNT-SVX07E-EN

. . . . . . . . . . . . . . . . . . . . . . . . 76

. . . . . . . . . . . . . . . . . 65

. . . . . . . . . . . . . . . . . . . . 68

. . . . . . . . . 69

. . . . . . . . . . . . . . . . . . . 69

. . . . . . . . . 70

. . . . . . . . . . . . . . . . . 74

. . . . 74

. . . . . . . . . . . . . . . 75

Wireless Comm Interface (WCI)

Quantity of WCIs per Network . . . . . . . . .78

Quantity of Networks per Tracer SC . . . . .78

Automatic Network Formation . . . . . . . . .78

Specifications . . . . . . . . . . . . . . . . . . . . . . .78

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . .78

Wireless protocol . . . . . . . . . . . . . . . . . . . .78

Installation - Electrical

Unit Wiring Diagrams Supply Power Wiring

. . . . . . . . . . . . . . . . . . . .79

. . . . . . . . . . . . . . . . . .79

. . . . . . . . .78

Electrical Grounding Restrictions Interconnection Wiring MCA and MOP Calculations

ECM Overview and Setup

Overview

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

. . . . . . . . . . . . . . . . .79

. . . . . . . . . . . . .81

. . . . . . . . . . . . . . . .83

Electronically Commutated Motor (ECM) VelociTach Motor Control Board Manual Fan Speed Switch (FSS)

. . . . . . . . .84

. . . . . . . . .85

Customer Supplied Thermostat Interface Installation and Initial Setup Safety Requirements Setup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

VelociTach Motor Control Board . . . . . . .88

User Interface . . . . . . . . . . . . . . . . . . . . . . .89

Priority/Error Display . . . . . . . . . . . . . . . . .91

Adjustments . . . . . . . . . . . . . . . . . . . . . . . .92

. . . . . . . . . . . . . . . . . . .87

. . . . . . . . . . . .86

CSTI Adapter Board Configuration VelociTach Control Board Configuration

Motor Control Board Settings . . . . . . . . . .98

Fan Speed Response Verification . . . . . .101

Startup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Pre-Startup Checklist

General Checks . . . . . . . . . . . . . . . . . . . . .102

Fan-Related Checks . . . . . . . . . . . . . . . . .102

Coil-Related Checks . . . . . . . . . . . . . . . . .102

Electrical Checks . . . . . . . . . . . . . . . . . . . .102

Ductwork Checks . . . . . . . . . . . . . . . . . . .102

Unit Startup

. . . . . . . . . . . . . . . . . . . . . . . . .103

. . . . . . . . . . . . . . . . . .102

Tracer ZN010 and ZN510 Controllers

ZN510 Stand-Alone Operation . . . . . . . .103

. . . . . . . .79

.83

.86

. . . . . . .95

. .97

. . . .103

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ZN010 and ZN510 Operation . . . . . . . . . 103

Sequence of Operation . . . . . . . . . . . . . 103

Binary Inputs . . . . . . . . . . . . . . . . . . . . . . 104

Binary Outputs . . . . . . . . . . . . . . . . . . . . 104

Zone Sensors . . . . . . . . . . . . . . . . . . . . . 104

Tracer ZN520 Controllers

ZN520 Stand-Alone Operation . . . . . . . 105

ZN520 Operation . . . . . . . . . . . . . . . . . . 105

Sequence of Operation . . . . . . . . . . . . . 106

Occupancy Modes . . . . . . . . . . . . . . . . . 106

Cooling Operation . . . . . . . . . . . . . . . . . 107

Heating Operation . . . . . . . . . . . . . . . . . 107

Fan Mode Operation . . . . . . . . . . . . . . . 108

Electric Heat Operation . . . . . . . . . . . . . 109

Damper Options . . . . . . . . . . . . . . . . . . . 109

Dehumidification . . . . . . . . . . . . . . . . . . 110

Data Sharing . . . . . . . . . . . . . . . . . . . . . . 110

Binary Inputs . . . . . . . . . . . . . . . . . . . . . . 110

Zone Sensor . . . . . . . . . . . . . . . . . . . . . . 112

Tracer UC400 Controller

UC400 Stand-Alone Operation . . . . . . . 113

UC400 Operation . . . . . . . . . . . . . . . . . . 114

Sequence of Operation . . . . . . . . . . . . . 114

Occupancy Modes . . . . . . . . . . . . . . . . . 114

Timed Override Control . . . . . . . . . . . . . 115

Zone Temperature Control . . . . . . . . . . 115

Discharge Air Tempering . . . . . . . . . . . . 116

Heating or Cooling Mode . . . . . . . . . . . 116

Fan Operation . . . . . . . . . . . . . . . . . . . . . 116

Exhaust Control . . . . . . . . . . . . . . . . . . . 117

Valve Operation . . . . . . . . . . . . . . . . . . . 117

Modulating Outdoor/Return Air Damper 118

Electric Heat Operation . . . . . . . . . . . . . 119

Dehumidification Operation . . . . . . . . . 119

Peer-to-Peer Communication . . . . . . . . 119

Unit Protection Strategies . . . . . . . . . . . 119

Routine Maintenance

Maintenance Checklist Air Filters Coils

. . . . . . . . . . . . . . . . . . . . . . . . . . . 121

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

. . . . . . . . . . . . . 105

. . . . . . . . . . . . . . 113

. . . . . . . . . . . . . . . . . . 121

. . . . . . . . . . . . . . . 121

Steam and Water Coils . . . . . . . . . . . . . .122

Coil Winterization . . . . . . . . . . . . . . . . . . .122

Moisture Purge Cycle . . . . . . . . . . . . . . . .123

Cleaning Non-Porous Surfaces . . . . . . . .123

Cleaning Porous Surfaces . . . . . . . . . . . .124

Control Device Replacement Drain Pans

Removing Main Drain Pan . . . . . . . . . . .124

Removing Auxiliary Drain Pan . . . . . . . .124

Replacing Drain Pan . . . . . . . . . . . . . . . . .125

Cleaning Drain Pan . . . . . . . . . . . . . . . . .125

Fans

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

Inspecting and Cleaning Fans . . . . . . . . .126

Fan Motors . . . . . . . . . . . . . . . . . . . . . . . .126

Torque Rating . . . . . . . . . . . . . . . . . . . . . .126

Fan Board Assembly . . . . . . . . . . . . . . . .126

Replacing Motors . . . . . . . . . . . . . . . . . . .127

. . . . . . . . . . . . . . . . . . . . . . . . . . .124

. . . . . . . . . . .124

Diagnostics and Troubleshooting

Fan Coil and Cabinet Heater

. . . . . . . . . . .129

Wireless Zone Sensors (WZS)

Receiver Diagnostics . . . . . . . . . . . . . . . .131

Sensor Diagnostics . . . . . . . . . . . . . . . . .131

Testing Signal Strength . . . . . . . . . . . . . .132

Testing Battery Status . . . . . . . . . . . . . . .133

24 V Power Status Indicator . . . . . . . . . .133

Check Signal Strength on a Site . . . . . . .133

Replacing Sensor Batteries . . . . . . . . . . .133

Manual Association . . . . . . . . . . . . . . . . .134

Disassociation . . . . . . . . . . . . . . . . . . . . .134

Sensor/Receiver Compatibility . . . . . . . .134

Replacing a Failed Sensor or Receiver . .134

Servicing and Testing WZS

Servicing and Testing Tools . . . . . . . . . .135

Procedure for Testing Zone Sensor . . . .135

Procedure for Testing Receiver . . . . . . . .135

Forcing a Sensor to Transmit . . . . . . . . .135

Output Power Level . . . . . . . . . . . . . . . . .135

Failure and Default Modes . . . . . . . . . . .135

Measuring Output Resistance . . . . . . . . .136

Cleaning the Sensor . . . . . . . . . . . . . . . . .136

. . . . . . . . . . . .135

. . . . . . . .129

. . . . . . . . . .130

UNT-SVX07E-EN 5

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ZN010, ZN510, and ZN520 Controllers

LED Activity . . . . . . . . . . . . . . . . . . . . . . . 136

Manual Output Test . . . . . . . . . . . . . . . . 137

Manual Output Test Procedure . . . . . . . 137

Diagnostics

Translating Multiple Diagnostics . . . . . 138

Resetting Diagnostics . . . . . . . . . . . . . . 138

Cycling Power . . . . . . . . . . . . . . . . . . . . . 139

Controller Diagnostics . . . . . . . . . . . . . . 139

. . . . . . . . . . . . . . . . . . . . . . . . . 138

Troubleshooting ZN010, ZN510, and ZN520 Controllers

Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Electric Heat . . . . . . . . . . . . . . . . . . . . . . 142

Fresh Air Damper . . . . . . . . . . . . . . . . . . 142

. . . . . . . . . . . . . . . . . . . . . . . . . . 141

. . . 136

Troubleshooting Other Unit Functions .153

Wiring Diagrams

. . . . . . . . . . . . . . . . . . . . . . .154

Tracer UC 400 Controller

LED Activity . . . . . . . . . . . . . . . . . . . . . . . 143

Overriding Outputs . . . . . . . . . . . . . . . . 144

Diagnostics

Diagnostics Types . . . . . . . . . . . . . . . . . 144

Controller Diagnostics . . . . . . . . . . . . . . 145

. . . . . . . . . . . . . . . . . . . . . . . . . 144

. . . . . . . . . . . . . . . 143

Troubleshooting UC400 Controller

Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

DX Coils or Electric Heat . . . . . . . . . . . . 147

Outdoor Air Dampers . . . . . . . . . . . . . . . 148

ECM Motors

General Information . . . . . . . . . . . . . . . . 149

Troubleshooting Tips . . . . . . . . . . . . . . . 149

Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

. . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Replacing ECM Components

Replacement Guidelines . . . . . . . . . . . . 151

Replacement Checklist . . . . . . . . . . . . . . 151

Circuit Module Replacement . . . . . . . . . 152

Application Notes

RPM Mode . . . . . . . . . . . . . . . . . . . . . . . 153

Field Power Wiring . . . . . . . . . . . . . . . . . 153

Performance Boundaries . . . . . . . . . . . . 153

MCA/MOP and Power Draw . . . . . . . . . 153

Electric Heat Relays . . . . . . . . . . . . . . . . 153

. . . . . . . . . . . . . . . . . . . 153

. . . . . 146

. . . . . . . . . . 151

6 UNT-SVX07E-EN

Page 7

Model Number Descriptions

UniTrane™ Fan Coil/ Force Flo™ Cabinet Heater

Following is a complete description of the UniTrane fan coil and Force Flo cabinet heater model number. Each digit in the model number has a corresponding code that identifies specific unit options.

Note: Not all options are available on all

cabinet styles. Contact your local Trane sales representative for more information.

Digits 1, 2 — Unit Type

FC = UniTrane fan coil FF = Force Flo cabinet heater

Digit 3 — Cabinet Type

A = Vertical concealed B = Vertical cabinet C = Horizontal concealed D = Horizontal cabinet E = Horizontal recessed F = Wall-hung cabinet (FF only) H = Vertical recessed J = Vertical slope-top cabinet M = Inverted vertical cabinet

(FF only)

N = Inverted vertical recessed

(FF only)

P = Compact concealed

Digit 4 — Development Sequence “B”

Digits 5, 6, 7 — Unit Size

020 040 080 030 060 100 120

Digit 8 — Unit Voltage

1 = 115/60/1 2 = 208/60/1 3 = 277/60/1 4 = 230/60/1 5 = 208/60/3 (FF only) 6 = 230/60/3 (FF only) 7 = 480/60/3 (FF only) 8 = 110-120/50/1 (FF only) 9 = 220/50/1 A = 220-240/50/3 (FF only) B = 380-415/50/3 (FF only)

Digit 9 — Piping System/ Placement

A = No piping, RH, no auxiliary

drain pan

B = No piping, LH, no auxiliary

drain pan

C = No piping, RH, with auxiliary

drain pan

D = No piping, LH, with auxiliary

drain pan

E = No piping, RH, no auxiliary

drain pan, Extended End Pocket

F = No piping, LH, No Auxiliary

Drain Pan, extended end pocket

G = No piping, RH, with auxiliary

drain pan, extended end pocket

H = No piping, LH, with auxiliary

drain pan, extended end pocket J = With piping package, RH K = With piping package, LH L = With piping package, RH,

extended end pocket M = With piping package, LH,

extended end pocket

Digits 10, 11 — Design Sequence

Digit 12 — Inlets

A = Front toe space B = Front bar grille C = Front stamped louver D = Bottom stamped louver E = Bottom toe space F = Back duct collar G = Back open return H = Back stamped louver J = Top duct collar (FF only) K = Exposed fan (Model P only) L = Bottom filter (Model P only)

Digit 13 — Fresh Air Damper

0=None A = Manual, bottom opening B = Manual, back opening C = Manual, top opening D = Auto, 2-position, bottom

opening E = Auto, 2-position, back opening F = Auto, 2-position, top opening G = Auto, economizer, bottom

opening H = Auto, economizer, back opening J = Auto, economizer, top opening K = No damper, bottom opening L = No damper, back opening M = No damper, top opening

Digit 14 — Outlets

A = Front duct collar B = Front bar grille C = Front stamped louver D = Front quad grille E = Bottom duct collar (FF only) F = Bottom stamped louver

(FF only) G = Top quad grille H = Top bar grille J = Top duct collar

Digit 15 — Color

0 = No paint (concealed units only) 1 = Deluxe Beige 2=Soft Dove 3=Cameo White 4 = Driftwood Grey 5 = Stone Grey 6=Rose Mauve

Digit 16 — Tamperproof Locks/ Leveling Feet

0=None B = Keylock access door C = Keylock panel and access door D = Leveling feet F = Keylock access door with

G = Keylock panel and access door

leveling feet with leveling feet

Digit 17 — Motor

A = Free discharge ECM B = High static ECM

Digit 18 — Coil

A = 2-row cooling/heating B = 3-row cooling/heating C = 4-row cooling/heating D = 2-row cooling/1-row heating E = 2-row cooling/2-row heating F = 3-row cooling/1-row heating G = 2-row cooling only H = 3-row cooling only J = 4-row cooling only K = 2-row cooling/heating

L = 3-row cooling/heating M = 4-row cooling/heating N = Electric heat, single-stage P = 2-row cooling/heating Q = 2-row cooling/heating R = 3-row cooling/heating U = Electric heat, two-stage V = Electric heat, low kW, one-stage W = Steam distributing (FF only)

X = 2-row cooling only, electric Y = 3-row cooling only, electric Z = 4-row cooling only, electric

Note:

electric heat electric heat electric heat (FF only) 1-row heating 2-row heating 1-row heating (FF only) (FF only)

heat heat heat

Designates coils provided with a

changeover sensor.

1 1 1

with

Digit 19 — Drain Pan Material (Fan Coil) or Coil Series (Force Flo)

1 = 108 FPF (steam only) 2 = 144 FPF (hot water only) 3 = Polymer drain pan 4 = Stainless steel main drain pan

UNT-SVX07E-EN 7

Page 8

Model Number Descriptions

Digit 20 — Coil Air Vent

A = Automatic air vent M = Manual air vent

Digits 21, 22, 23 — Electric Heat kW — ( ) = 208V Derate

00 0= No electric heat 010 = 1.0 kW (0.75 kW) 015 = 1.5 kW (1.1 kW) 020= 2.0 kW (1.5 kW) 025= 2.5 kW (1.9 kW) 030= 3.0 kW (2.3 kW) 040= 4.0 kW (3.0 kW) 045 = 4.5 kW (3.3 kW) (FF only) 050= 5.0 kW (3.8 kW) 060= 6.0 kW (4.5 kW) 070= 7.0 kW (5.3 kW) 075= 7.5 kW (5.7 kW) (FF only) 080= 8.0 kW (6.0 kW) 090 = 9.0 kW (6.6 kW) (FF only) 100 = 10.0 kW 105 = 10.5 kW (7.9 kW) (FF only) 110 = 11.0 kW (9.0 kW) (FF only) 120= 12.0 kW (FF only) 135= 13.5 kW (10.2 kW) (FF only) 150= 15.0 kW (FF only) 180= 18.0 kW (13.5 kW) (FF only) 200= 20.0 kW (15.0 kW) (FF only)

Digit 24 — Reheat Coil (Fan Coil only)

0=None A = Steam coil B = Hot water coil D = High capacity hot water coil

Digit 25 — Disconnect Switch

0=None D = Disconnect switch

Digit 26 — Filter

0=None 1 = 1-in. throwaway filter 2 = 1-in. throwaway MERV 8 filter 3 = 1-in. throwaway, one extra 4 = 1-in. throwaway MERV 8,

one extra 5 = 1-in. throwaway, two extras 6 = 1-in. throwaway MERV 8,

two extras 7 = 1-in. throwaway, three extras 8 = 1-in. throwaway MERV 8,

three extras A = 1-in. throwaway MERV 13 filter B = 1-in. throwaway MERV 13,

one extra C = 1-in. throwaway MERV 13,

two extras D = 1-in. throwaway MERV 13,

three extras

Digit 27 — Main Control Valve

0=None A = 2-way, 2-position, NO (30 psig) B = 3-way, 2-position, NO (28 psig) C = 2-way, 2-position, NC (30 psig) D = 3-way, 2-position, NC (20 psig) E = 2-way, 2-position, NO (50 psig) F = 3-way, 2-position, NO (28 psig) G = 2-way, 2-position, NC (50 psig) H = 3-way, 2-position, NC (28 psig) J = 2-way, 3-wire modulating,

0.6 Cv (60 psig)

K = 3-way, 3-wire modulating,

0.6 Cv (60 psig)

L = 2-way, 3-wire modulating,

1.1 Cv (60 psig)

M = 3-way, 3-wire modulating,

1.1 Cv (60 psig)

N = 2-way, 3-wire modulating,

2.3 Cv (60 psig)

P = 3-way, 3-wire modulating,

2.7 Cv (60 psig)

Q = 2-way, 3-wire modulating,

3.3Cv (60 psig)

R = 3-way, 3-wire modulating,

3.8 Cv (60 psig) X = Field-supplied, NO Y = Field-supplied, NC Z = Field-supplied 3-wire modulating 1 = Field supplied analog valve 2 = 2-way, analog (2-10VDC),

CV=0.6 (60 psig)

3 = 3-way, analog (2-10VDC),

CV=0.6 (60 psig)

4 = 2-way, analog (2-10VDC),

CV=1.1 (60 psig)

5 = 3-way, analog (2-10VDC),

CV=1.1 (50 psig)

6 = 2-way, analog (2-10VDC),

CV=2.3 (50 psig)

7 = 3-way, analog (2-10VDC),

CV=2.7 (60 psig)

8 = 2-way, analog (2-10VDC),

CV=3.3 (60 psig)

9 = 3-way, analog (2-10VDC),

CV=3.8 (60 psig)

Digit 28 — Auxiliary Control Valve (Fan Coil only)

0.6 Cv (60 psig)

K = 3-way, 3-wire modulating,

0.6 Cv (60 psig)

L = 2-way, 3-wire modulating,

1.1 Cv (60 psig)

M = 3-way, 3-wire modulating,

1.1 Cv (60 psig)

N = 2-way, 3-wire modulating,

2.3 Cv (60 psig)

P = 3-way, 3-wire modulating,

2.7 Cv (60 psig)

Q = 2-way, 3-wire modulating,

3.3Cv (60 psig)

R = 3-way, 3-wire modulating,

3.8 Cv (60 psig) X = Field-supplied, NO Y = Field-supplied, NC Z = Field-supplied 3-wire modulating 1 = Field supplied analog valve 2 = 2-way, analog (2-10VDC),

CV=0.6 (60 psig)

3 = 3-way, analog (2-10VDC),

CV=0.6 (60 psig)

4 = 2-way, analog (2-10VDC),

CV=1.1 (60 psig)

5 = 3-way, analog (2-10VDC),

CV=1.1 (50 psig)

6 = 2-way, analog (2-10VDC),

CV=2.3 (50 psig)

7 = 3-way, analog (2-10VDC),

CV=2.7 (60 psig)

8 = 2-way, analog (2-10VDC),

CV=3.3 (60 psig)

9 = 3-way, analog (2-10VDC),

CV=3.8 (60 psig)

Digit 29 — Piping Packages

0=None A = Basic ball valve supply and

return

B = Basic ball valve supply/manual

circuit setter

C = Basic ball valve supply and

return with auto circuit setter

D = Deluxe ball valve supply and

return

E = Deluxe ball valve supply/manual

circuit setter

F = Deluxe ball valve supply and

return with auto circuit setter

8 UNT-SVX07E-EN

Page 9

Model Number Descriptions

Digit 30 — Control Type

A = Fan mode switch E = Tracer ZN010 F = Tracer ZN510 G = Tracer ZN520 H = Customer Supplied Terminal

Interface (CSTI) J = Tracer UC400, single-zone VAV K = Tracer UC400 with WCI

Digit 31 — Control Option

D = Unit-mounted fan mode switch K = Wall-mounted fan mode switch V = Unit-mounted fan speed switch

with setpoint dial zone sensor W = Wall-mounted fan speed switch

with setpoint dial zone sensor X = Unit-mounted fan speed switch

with wall-mounted setpoint dial

zone sensor Y = Unit-mounted fan speed switch

and wall-mounted setpoint dial

with comm. Z = Unit-mounted fan speed switch,

On/Cancel, setpoint dial

with comm. 1 = Wall-mounted On/Cancel

with comm. 2 = Wall-mounted fan speed switch,

setpoint dial, On/Cancel

with comm. 0 = Without control option 3 = Unit-mounted low voltage fan

speed switch (Off /Hi /Med /Low) 4 = Wall-mounted digital zone

sensor (OALMH, setpoint,

On/Cancel, comm jack) 5 = Wall-mounted digital zone

sensor (On/Cancel, comm jack) 6 = Wireless zone sensor 7 = Wireless display sensor, unit-

mounted receiver

Digit 32 — IAQ Options (Fan C oil only)

0 = Without IAQ options 1 = Dehumidification 4 = Dehumidification with sensor

Digit 33 —FLA Motor Option

0 = Standard FLA ECM mode A = Reduced FLA ECM mode

Digit 34

0 = None

Digit 35 — Control Function #3 (Fan Coil only)

0=None 2 = Condensate overflow detection

Digit 36 — Control Function #4 (Fan Coil only)

0=None 2 = Low temperature detection

Digits 37, 38 — Future Control Functions

Digit 39 — Projection Panels and Falsebacks

0=None A = 5/8-in. standard recessed panel

(vertical recessed units only) B = 2-in. projection panel C = 2.5-in. projection panel D = 3-in. projection panel E = 3.5-in. projection panel F = 4-in. projection panel G = 4.5-in. projection panel H = 5-in. projection panel J = 5.5-in. projection panel K = 6-in. projection panel L = 2-in. Falseback M = 3-in. Falseback N = 4-in. Falseback P = 5-in. Falseback Q = 6-in. Falseback R = 7-in. Falseback T = 8-in. Falseback

Digit 40 — Main Autoflow GPM

0=None H=3.5 A=0.5 J=4.0 B = 0.75 K = 4.5 C=1.0 L=5.0 D=1.5 M=6.0 E=2.0 N=7.0 F=2.5 P=8.0 G=3.0

Digit 41 — Auxiliary Autoflow GPM (Fan Coil only)

0 = None H = 3.5 A=0.5 J=4.0 B = 0.75 K = 4.5 C=1.0 L=5.0 D=1.5 M=6.0 E=2.0 N=7.0 F=2.5 P=8.0 G=3.0

Digit 42 — Subbases

0=None A = 2-in. subbase B = 3-in. subbase C = 4-in. subbase D = 5-in. subbase E = 6-in. subbase F = 7-in. subbase

Digit 43 — Recessed Flange

0=None A = Recessed flange

Digit 44 — Wall Boxes

0=None A = Anodized wall box

UNT-SVX07E-EN 9

Page 10

Model Number Descriptions

UniTrane™ Fan Coil Low Vertical Model

Following is a complete description of the UniTrane fan coil low height vertical model.

Digits 1, 2 — Unit Type

FC = UniTrane Fan Coil

Digit 3 — Cabinet Type

K = Low vertical concealed L = Low vertical cabinet

Digit 3 — Development Sequence

B = Development sequence B

Digit 4, 5, 6 — Unit Size

030= Size 030 040= Size 040 060= Size 060

Digit 7 — Unit Voltage

1 = 115v/60hz/1ph 2 = 208v/60hz/1ph 3 = 277v/60hz/1ph 4 = 230v/60hz/1ph

Digit 8 — Piping system/ placement

C = Without piping, right hand, with

aux drain pan

D = Without piping, left hand, with

aux drain pan J = With right hand piping K = With left hand piping

Digit 9, 10 — Design Sequence

** = Factory assigned

Digit 11 — Inlet Style

A = Front toe space inlet B = Front bar grille inlet

Digit 12 — Fresh Air Damper

0 = Without fresh air damper B = Manual fresh air damper, back

opening E = Auto, 2 position damper, back

opening

Digit 13 — Outlet Style

G = Top quad grille outlet H = Top bar grille outlet J = Top duct collar outlet

Digit 14 — Unit Color

0 = Unpainted unit (concealed units) 1 = Deluxe Beige 2=Soft Dove 3=Cameo White 4 = Driftwood Grey 5 = Stone Grey 6=Rose Mauve

Digit 15 — Tamperproof Locks and Leveling Feet

0 = Without locks or leveling feet B = Keylock access door D = Leveling feet F = Keylock access door with

leveling feet

Digit 16 — Main Coil Type

A = 2-row cooling/heating B = 3-row cooling/heating C = 4-row cooling/heating D = 2-row cooling, 1-row heating coil E = 2-row cooling, 2-row heating coil F = 3-row cooling, 1-row heating coil K = 2-row cooling/heating

P = 2-row cooling/heating Q = 2-row cooling/heating R = 3-row cooling/heating X = 2-row cooling only, electric heat

Note:

electric heat coil 1-row heating coil 2-row heating coil 1-row heating coil

Designates coils provided with a

changeover sensor.

1 1 1

with

Digit 17 — Coil air vent

A = Auto air vent M = Manual air vent

Digit 18, 19, 20 — Electric Heat

000= Without electric heat 010 = 1.0 kW [0.75 208v] 015= 1.5 kW [1.1 208v] 020= 2.0 kW [1.5 208v] 025= 2.5 kW [1.9 208v] 030= 3.0 kW [2.2 208v] 040= 4.0 kW [3.0 208v]

Digit 21 — Auxiliary Coil Type

0 = Without auxiliary option C = Electric heat

Digit 22 — Disconnect Switch

0 = Without disconnect switch D = With disconnect switch

Digit 23 — Filter Type

0 = Without filter 1 = 1 inch. throwaway filter

Digit 24 — Main Control Valve

X = Field-supplied N/O control valve Y = Field-supplied N/C control valve Z = Field-supplied 3-wire modulating

control valve

1 = Field-supplied analog valve

(2-10VDC)

A = 2-way, 2-position, NO (30 psig)

Cv = 2.3

B = 3-way, 2-position, NO (28 psig)

Cv = 3.0

C = 2-way, 2-position, NC (30 psig)

Cv = 2.3

D = 3-way, 2-position, NC (20 psig)

Cv = 4.4

E = 2-way, 2-position, NO (50 psig)

Cv = 1.0

F = 3-way, 2-position, NO (28 psig)

Cv = 1.5

G = 2-way, 2-position, NC (50 psig)

Cv = 1.0

H = 3-way, 2-position, NC (28 psig)

Cv = 1.5

J = 2-way, modulating Cv=0.6

(60 psig)

K = 3-way, modulating Cv=0.6

(60 psig)

L = 2-way, modulating Cv=1.1

(60 psig)

M = 3-way, modulating Cv=1.1

(60 psig)

N = 2-way, modulating Cv=2.3

(60 psig)

P = 3-way, modulating Cv=2.7

(60 psig)

Q = 2-way, modulating Cv=3.3

(60 psig)

R = 3-way, modulating Cv=3.8

(60 psig) 0 = Without cooling control valves 2 = 2 way, analog(2-10VDC), Cv=0.6

(60 psig) 3 = 3 way, analog(2-10VDC), Cv=0.6

(60 psig) 4 = 2 way, analog(2-10VDC), Cv=1.1

(60 psig) 5 = 3 way, analog(2-10VDC), Cv=1.1

(60 psig) 6 = 2 way, analog(2-10VDC), Cv=2.3

(60 psig) 7 = 3 way, analog(2-10VDC), Cv=2.7

(60 psig) 8 = 2 way, analog(2-10VDC), Cv=3.3

(60 psig) 9 = 3 way, analog(2-10VDC), Cv=3.8

(60 psig)

10 UNT-SVX07E-EN

Page 11

Model Number Descriptions

Digit 25 — Auxiliary Control Valve

X = Field-supplied N/O control valve Y = Field-supplied N/C control valve Z = Field supplied 3-wire modulating

control valve

1 = Field-supplied analog valve

(2-10VDC)

A = 2-way, 2-position, NO (30 psig)

Cv = 2.3

B = 3-way, 2-position, NO (28 psig)

Cv = 3.0

C = 2-way, 2-position, NC (30 psig)

Cv = 2.3

D = 3-way, 2-position, NC (20 psig)

Cv = 4.4

E = 2-way, 2-position, NO (50 psig)

Cv = 1.0

F = 3-way, 2-position, NO (28 psig)

Cv = 1.5

G = 2-way, 2-position, NC (50 psig)

Cv = 1.0

H = 3-way, 2-position, NC (28 psig)

Cv = 1.5

J = 2-way, modulating, Cv=0.6

(60 psig)

K = 3-way, modulating, Cv=0.6

(60 psig)

L = 2-way, modulating, Cv=1.1

(60 psig)

M = 3-way, modulating, Cv=1.1

(60 psig)

N = 2-way, modulating, Cv=2.3

(60 psig)

P = 3-way, modulating, Cv=2.7

(60 psig)

Q = 2-way, modulating, Cv=3.3

(60 psig)

R = 3-way, modulating, Cv=3.8

(60 psig) 0 = Without heating control valves 2 = 2-way, analog(2-10VDC), Cv=0.6

(60 psig) 3 = 3-way, analog(2-10VDC), Cv=0.6

(60 psig) 4 = 2-way, analog(2-10VDC), Cv=1.1

(60 psig) 5 = 3-way, analog(2-10VDC), Cv=1.1

(60 psig) 6 = 2-way, analog(2-10VDC), Cv=2.3

(60 psig) 7 = 3-way, analog(2-10VDC), Cv=2.7

(60 psig) 8 = 2-way, analog(2-10VDC), Cv=3.3

(60 psig) 9 = 3-way, analog(2-10VDC), Cv=3.8

(60 psig)

Digit 26 — Piping Packages/End Valves

0 = Without piping A = Basic ball valve supply and

return

B = Basic ball valve supply, manual

circuit setter return

D = Deluxe ball valve supply and

return

E = Deluxe ball valve supply, manual

circuit setter return

Digit 27 — Control Type

A = Fan speed switch D=Tracer ZN 010 E=Tracer ZN 510 F = Tracer ZN 520 H = CS T-Stat Interface J = Tracer UC400, single zone VAV K = Tracer UC400, with wireless

comm

Digit 28 — Control Option

0=None D = Unit-mounted fan speed switch,

line voltage

K = Wall-mounted fan speed switch,

line voltage

V = Unit-mounted zone sensor

(OALMH and setpoint dial)

3 = Unit-mounted fan speed switch,

low voltage

W = Wall-mounted zone sensor

(OALMH and setpoint dial)

X = Unit-mounted fan switch and

wall-mounted setpoint dial

Y = Unit-mounted fan switch and

wall-mounted (setpoint, comm)

Z = Unit-mounted temp sensor

(OALMH, SP, ON/CNC)

1 = Wall-mounted temp sensor

(OCC/UNOCC, COMM)

2 = Wall-mounted temp sensor

(OALMH,SP,O/C,COMM)

4 = Wall-mounted sensor (SP,

OALMH, O/C,COM)

6 = Wireless temp sensor, unit

receiver (SP)

7 = Wireless display sensor, unit

rec (OALMH)

Digit 29 — Drain Pan Material

3 = Polymer drain pan 4 = Stainless steel drain pan

Digit 30 — FLA Motor Option

0 = Standard FLA ECM A = Reduced FLA ECM

Digit 31 — Control Function 2

0 = Without occupant call or IAQ

status

Digit 32 — Control Function 3

0 = Without occupied/unoccupied or

condensate overflow

2 = Condensate overflow detection

Digit 33 — Control Function 4

0 = Without smoke input or low limit

detect

2 = Low limit detection

Digit 34 — Control Function 5

0 = Without external interlock or fan

status

Digit 35 — Control Function 6

0 = Without motion input or filter

status

2 = Filter status

UNT-SVX07E-EN 11

Page 12

General Information

Smaller unit footprint

Factory-installed and

tested controls

Removable, noncorrosive,

positively-sloped drain pan

Built-in field service

tool with real language LED

Easy-to-remove

fan assembly

18 gage steel

construction

Easy filter access with front panel removal

Energy efficient electronically commutated motor (ECM)

Damper allows up to 100 percent fresh air

Cleanable closedcell insulation (non-fiberglass)

Factory-assembled, -installed, and

-tested piping package with IAQ drain pan to collect condensate

Two-, three-, or four-row coils

Quiet operation

UniTrane™ fan coils and Force Flo™ cabinet heaters are intended for single zone applications. These units have load capabilities of 200 to 1200 cfm. See Figure 1 for unit components.

Fan coils provide cooling and heating, and are available as two-pipe, with or without electr ic heat (one hydronic circuit) or four-pipe (two hydronic circuits).

Cabinet heaters are for heating only, and feature two-pipe hydronic, electric heat only, or steam only.

These units feature a variety of factory mounted piping packages.

three-speed switch option, whic h ships separately, comes with a low voltage (24 volt AC) transformer.

The T racer ZN010, ZN510, ZN520, and UC400 controllers are included inside the units control box assembly. These controllers utilize analog signals from a unit-mounted control device or from a control device mounted in the occupied space.

The Customer Supplied Terminal Interface (CSTI) option, includes a 24 volt AC transformer, and an interface terminal board. Controls provided by an external source can be tied into the interface terminal board utilizing the integrated terminal block with 3mm screw connections.

Units with the three-speed fan switch only, are available with the switch mounted on the unit, or shipped separately, to be mounted in the occupied space. The

Figure 1. UniTrane fan-coil and Force Flo cabinet heater components (vertical cabinet model shown)

12 UNT-SVX07E-EN

Page 13

Pre-Installation

Receiving Checklist

WARNING

Hazardous Voltage w/Capacitors!

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. V er i fy with an appropr iate v oltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

Receiving and Handling

Inspection

Upon delivery, thoroughly inspect all components for any shipping damage that may have occurred, and confirm that the shipment is complete. See “Receiving Chec klist” section for detailed instructions.

Note: Delivery cannot be refused. All units are shipped

F.O.B. factory . T rane is not responsible for shipping

damage.

Packaging/Shipping

UniTrane fan coils and Force-Flo cabinet heaters ship in individual cartons for handling and storage ease.

Field-installed sensors ship separately inside the unit’s main control panel. Piping pac kages and mixing boxes are packaged separately and ship on the same skid as the unit.

Identification

Each carton has tagging information such as the model number, sales order number, serial number, unit size, piping connections, and unit style to help properl y locate the unit in the floor plan. If specified, the un it will ship with tagging designated by the customer.

Complete the following checklist immediately after receiving shipment to detect possible shipping damage.

 Check to ensure that the shipment is complete. Small

components may ship inside the unit or ship separately. Chec k the parts list to ensure all materials are present.

 Check all uni ts, components, connections, and pipi ng.

Check fan wheel for free rotation by spinning manually. Chec k all doors, latc hes and hinges. Inspect interior of each unit or section. Inspect coils for damage to fin surface and coil connections. Check for rattles, bent corners, or other visible indicati ons of shipping damage. Tighten loose co nnections.

 If a unit is damaged, make specific notations

concerning the damage on the freight bill. Do not refuse delivery.

 Notify the carrier’s terminal of the damage

immediately by phone and mail. Request an immediate joint inspection of the damage by the carrier and consignee.

 Notify your Trane sales representative of the damage

and arrange for repair. Do not attempt to repair the unit without consulting the Trane representative.

 Inspect the unit for concealed damage as soon as

possible after delivery. Report concealed damage to the freight line. It is the receiver’s responsibility to provide reasonable evidence that concealed damage did not occur after delivery. Take photos of damaged material if possible.

Note: Concealed damage must be reported within 15

days of receipt.

Jobsite Storage

This unit is intended for indoor use only. It is the sole responsibility of the customer to provide the necessary protection to prevent vandalism and weather protection of the equipment. Under no circumstance shoul d the unit be left unprotected from the elements.

Handling

Trane recommends leaving units and acces sories in their shipping pac kages/skids for protection and handling ease until installation. Remove the skids before placing the unit in its permanent location.

UNT-SVX07E-EN 13

NOTICE:

Microbial Growth!

Wet interior unit insulation can become an amplification site for microbial growth (mold), which could result in o dors and damag e t o the equipm ent and building materials. If there is evidence of microbial growth on the interior insulation, it shou ld be removed and replaced prior to operating the system.

Page 14

Pre-Installation

If indoor storage is not possible, Trane makes the following recommendations to prevent damage:

Note: Keep the equipment on the original wooden blocks/

skid for protection and ease of handling.

• Select a well-drained area, preferably a concrete pad or

blacktop surface.

• Place the unit on a dry surface or raised off the ground

to assure adequate air circulation beneath the unit and to assure no portion of the unit will contact standing water at any time.

• Cover the unit securely with a canvas tarp.

NOTICE:

Corrosion!

Use only canvas tarps to cover air handlers. Plastic tarps can cause condensation to form in and on the equipment, which could result in corrosion damage or wet storag e stains.

• Do not stack units.

• Do not pile other material on the unit.

Site Preparation

• Ensure the installation site can support the total weight

of the unit (see “Dimensions and Weigh ts” on page 15 for approximate section weights; refer to the unit submittals for actual weights).

• Allow sufficient space for adequate free air and

necessary service access (see “Service Clearances” on

page 15). Refer to submittals for specific minimums.

• Allow one and one half fan diameters above the un it

before the discharge ductwork makes any turns.

• Allow room for supply and return piping, ductwork,

electrical connections, and coil removal. Support all piping and ductwork independently of the unit to prevent excess noise and vibration.

• Ensure there is adequate height for coil piping and

condensate drain requirements. See “Condensate

Drain Connections,” on page 56.

• Consider coil piping and condensate drain

requirements. Verify condensate line is continuously pitched one inch per 10 feet of condensate line run to adequately drain condensate.

• Confirm the floor or foundation is level. For proper unit operation, the unit must be level (zero tolerance) in both horizontal axis.

NOTICE:

Microbial Growth!

The floor or foundation must be level and the condensate drain at the proper height for proper coil drainage and condensate flow. Standing water and wet surfaces inside the equipment can become an amplification site for microbial growth (mold), which could cause odors and damage to the equipment and building materials.

• If the unit is to be ceiling mounted, the installer/ contractor must provide threaded suspension rods. All units must be installed level.

• Vertical recessed/concealed units require wall/ceiling openings. Refer to submittal for specific dimensions before attempting to install.

• Horizontal recessed/concealed units must meet the requirements of the National Fire Protection Association (NFPA) Standard 90A or 90B concerning the use of concealed ceiling spaces as return air plenums. Refer to the submittal for specific dimensions of ceiling openings.

• Touch up painted panels if necessary. If panels need paint, sanding is not necessary. However, clean the surface of any oil, grease, or dirt residue so the paint will adhere. Purchase factory approved touch up epoxy paint from your local Trane Service Parts Center and apply.

• Units have either right or left hand piping. Reference piping locations by facing the front of the unit (airflow discharges fr om the front). The control panel is always on the end opposite the piping.

• The fan board assembly and main drain pan are easily removable for cleaning. See “Routine Maintenance,”

on page 121 for more details on servicing.

14 UNT-SVX07E-EN

Page 15

Dimensions and Weights

Model B Vertical Cabinet Model L Low Vertical Cabinet

Model A Vertical Concealed Model K Low Vertical Concealed Model H Vertical Recessed

36 in.

8.5 in.

both sides

12 in.

both sides

24 in.

3 in.

Model D Horizontal Cabinet

Model C Horizontal Concealed Model E Horizontal Recessed

28 in.

8.5 in.

both sides

12 in.

both sides

24 inches front discharge

28 in.

Service Clearances

Service access is available from the front on vertical units and from the bottom on horizontal units. Cabinet and recessed units have removable front or bottom panels to

Figure 2. Recommended service clearances for vertical units

allow access into the unit. See Figure 2 and Figure 3 for recommended service and operating clearances.

Figure 3. Recommended service clearances for horizontal units

UNT-SVX07E-EN 15

Page 16

Dimensions and Weights

Component Data

Table 1. Fan coil and cabinet heater component data

Unit Size 02 03 04 06 08 10 12

Coil Data Face Area (ft2) 0.80 0.80 1.10 1.60 2.10 3.20 3.20 L x D x H (in.)

2-Row 15 x 1.7 x 8 15 x 1.7 x 8 20 x 1.7 x 8 29.5 x 1.7 x 8 38 x 1.7 x 8 57 x 1.7 x 8 57 x 1.7 x 8 3-Row 15 x 2.6 x 8 15 x 2.6 x 8 20 x 2.6 x 8 29.5 x 2.6 x 8 38 x 2.6 x 8 57 x 2.6 x 8 57 x 2.6 x 8 4-Row 15 x 3.5 x 8 15 x 3.5 x 8 20 x 3.5 x 8 29.5 x 3.5 x 8 38 x 3.5 x 8 57 x 3.5 x 8 57 x 3.5 x 8

Volume (gal.)

1-Row (Heat) 0.06 0.06 0.08 0.11 0.14 0.21 0.21 2-Row 0.120.120.150.220.280.420.42 3-Row 0.18 0.18 0.23 0.33 0.42 0.62 0.62 4-Row 0.240.240.300.440.560.830.83

Fins per inch

2-Row 12121212121212 3-Row 12 12 12 12 12 12 12 4-Row 12121212121212

Reheat Coil Data (1-Row), Standard or High-Capacity Hot Water or Steam Face Area (ft2) 0.60 0.60 0.80 1.20 1.60 2.40 2.40 L x D x H (in.) 15 x 1.5 x 6 15 x 1.5 x 6 20 x 1.5 x 6 29.5 x 1.5 x 6 38 x 1.5 x 6 57 x 1.5 x 6 57 x 1.5 x 6 Volume (gal.) 0.12 0.12 0.15 0.22 0.28 0.42 0.42

Standard Capacity High-Capacity1 Fins/in. 12 12 12 12 12 12 12

Fan/Motor Data

Fan Quantity 1 1 1 2 2 3 3 Size — Dia x Width (in.) 6.31 x 4 6.31 x 6.5 6.31 x 7.5 6.31 x 6.5 6.31 x 7.5 (1) 6.31 x 7.5 6.31 x 7.5 Size — Dia x Width (in.) (2) 6.31 x 6.5 Motor Quantity 1111122

Filter Data 1-in. Throwaway and Pleated Media

Quantity 1 1 1 1 1 1 1 Size (in.) 8-7/8 x 19-1/8 8-7/8 x 19-1/8 8-7/8 x 24-1/8 8-7/8 x 33-5/8 8-7/8 x 42-1/8 8-7/8 x 61-1/8 8-7/8 x 61-1/8

1-in. Fresh Air Filter (only on cabinet styles D, E, and H with bottom return and fresh air opening)

Quantity 1111111 Size (in.) 5-1/2 x 19-1/8 5-1/2 x 19-1/8 5-1/2 x 24-1/8 5-1/2 x 33-5/8 5-/2 x 42-1/8 5-1/2 x 61-1/8 5-1/2 x 61-1/8

Note:1Standard and high-capacity reheat coils share the same component data except that standard capacity reheat coils have 4 fins/in. while high-capacity

reheat coils have 12 fins/in.

Fins/in. 4444444

Table 2. Low vertical fan coil component data

Unit Size 03 04 06

Coil Data Face Area (ft2) 1.10 1.60 2.10 L x D x H (in.)

2-Row 20 x 1.7 x 8 29.5 x 1.7 x 8 38 x 1.7 x 8 3-Row 20 x 2.6 x 8 29.5 x 2.6 x 8 38 x 2.6 x 8

Volume (gal.)

1-Row (Heat) 0.08 0.11 0.14 2-Row 0.15 0.22 0.28 3-Row 0.230.330.42

Fins per inch

2-Row 121212 3-Row 12 12 12

Fan/Motor Data

Fan Quantity 1 1 1 Size — Dia x Width (in.) 5.00 x 23.00 5.00 x 32.00 5.00x 41.00 Motor Quantity 1 1 1

Filter Data 1-in. Throwaway

Quantity 111 Size — in. 8-7/8 x 24-1/8 8-7/8 x 33-5/8 8-7/8 x 42-1/8

Note: Low vertical model not available for Force Flo cabinet heaters.

16 UNT-SVX07E-EN

Page 17

Available Models

Figure 4. Available UniTrane fan coils and Force Flo cabinet heaters

Dimensions and Weights

Model A: Vertical Concealed

Model E: Horizontal Recessed

Model K: Low Vertical Concealed

Model B: Vertical Cabinet

Model F: Wall Hung Cabinet (Force-Flo units only)

Model L: Low Vertical Cabinet

Model C: Horizontal Concealed

Model H: Vertical Recessed

Model M: Inverted Vertical Cabinet (Force-Flo units only)

Model D: Horizontal Cabinet

Model J: Vertical Slope Top Cabinet

Model N: Inverted Vertical Recessed (Force-Flo units only)

Model P: Compact Concealed

UNT-SVX07E-EN 17

Page 18

Top View

Power wiring

bottom

only

1 3/32 in. KO

7/8 in. KO

1 3/4 in. 1 3/4 in.

3 3/8 in.

5 5/16 in.

Top outlet

duct collar

1 in.

Auxiliary control box opt.

6 1/4 in.

Control

box

1 3/8 in.

2 7/8 in.

Front View RH Piping

5/8 in. bolt hole

7/8 in. KO

control wiring

Optional

disconnect switch

Auxiliary

control box

optional

5 1/4 in.

6 7/8 in.

Control

box

6 15/16 in.

6 7/16 in.

9/16 in.

4 1/2 in.

7 in.

15 1/2 in.

26 1/4 in.

1 5/8 in.

1 in. duct collar

(4) 5/8 in. dia keyslot hanger holes

3/4 in.

Front inlet

open

4 7/16 in.

3/4 in.

1 3/4 in.

Side View

10 1/16 in.

Air flow

Secondary drain connection for 3/8 in. ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

5 7/16 in.

1 9/16 in.

10 1/16 in.

Front View LH Piping

Coil connections

1 1/8 in. Auxiliary drain pan

Power wiring 7/8 in. or 1 3/32 in. KOs

Aux Box

Control

Box

Filters

Dimensions and Weights

Model A Vertical Concealed

Figure 5. Model A Vertical Concealed

18 UNT-SVX07E-EN

Page 19

Dimensions and Weights

Table 3. Model A Vertical concealed unit dimensions (inches)

Unit Size 200-300 400 600 800 1000-1200

No. Fans1122 3

No. Motors 1 1 1 1 2

A 32 11/16 37 11/16 47 3/16 55 11/16 74 11/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 22 13/16 27 13/16 37 5/16 45 13/16 64 13/16

D 17 5/16 22 5/16 2’-7 13/16 40 5/16 59 5/16

E 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 19

Page 20

Dimensions and Weights

Top View

(4) 5/8 in dia keyslot hanger holes

(4) Unit leveling devices (optional)

6 5/8 in.

1 in.

6 5/8 in.

6 1/2 in.

Unit control top

Top outlet quadrifuser

or bar grille

Power wiring bottom only

2 7/8 in.

1 3/8 in.

6 1/4 in.

7/8 in. KO 1 3/32 in. KO

(2) 5/8 in. bolt holes

6 in.

(4) 5/8 in. dia keyslot

hanger holes

7/8 in. KO

Control

wiring

Front View RH Piping

Optional

disconnect

switch

Auxiliary

control box

optional

5 1/4 in.

6 7/8 in. Front inlet

open or bar grille

4 7/16 in.

7 in. E

7 in.

8 in.

Control

box

F Optional extended end pocket

Front View LH Piping

Coil connections

Auxiliary

drain pan

1 1/8 in.

Filters

Control

box

Aux box

Power wiring 7/8 in.

or 1 3/32 in. KOs

1 5/8 in.

25 3/16 in.

15 1/2 in.

6 15/16 in.

5 1/16 in.

Secondary drain connection for 3/8 in. ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

5 7/16 in.

1 9/16 in.

10 in.

Air flow

9 7/8 in.

Side View

Model B Vertical Cabinet

Figure 6. Model B vertical cabinet

20 UNT-SVX07E-EN

Page 21

Dimensions and Weights

Table 4. Model B Vertical cabinet unit dimensions (i nches)

Unit Size 200-300 400 600 800 1000-1200

No. Fans1122 3

No. Motors 1 1 1 1 2

A 33 5/16 38 5/16 47 13/16 56 5/16 75 5/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 7 5/8 7 1/8 8 7/8 7 1/8 7 5/8

D 1’-16 24 30 42 60

E 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

F 41 5/16 46 5/16 55 13/16 64 5/16 83 5/16

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for locations.

All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 21

Page 22

Dimensions and Weights

Top View

2 5/16 in.

Back inlet duct collar

9/16 in.

Optional disconnect switch

Aux box

5 1/4 in.

15 1/2 in.

7/8 in. KO control wiring

1 5/8 in.

3 1/4 in.

2 in.

1 3/4 in.

2 5/16 in.

3 1/4 in.

(4) 5/8 in. dia keyslot hanger holes

Secondary drain connection for 3/8 in. ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

Control

box

(2) 5/8 in. bolt holes

3/4 in. 3/4 in.

Front View RH Piping

6 15/16 in.

1 11/16 in. 1 11/16 in.

6 3/8 in.

Aux box optional

6 1/4 in.

Control box

1 3/8 in.

2 7/8 in.

1 3/32 in. KO

7/8 in. KO

Power wiring bottom only

2 7/16 in.

8 7/8 in.

5 5/16 in.

Front outlet

duct collar

Front View LH Piping

1 1/8 in.

Aux box optional

Control box

Auxiliary

drain pan

Coil connections

26 3/4 in.

4 7/8 in. x F

Bottom inlet

open

10 1/16 in.

Filters

Air flow

1 in. duct collar

27 3/16 in.

Back duct collar

5/8 in.

Filter door used with back duct collar only

Back inlet duct collar

14 1/8 in.

6 1/8 in.

5/8 in.

1 in. duct collar

Side View

Inlet Options

Model C Horizontal Concealed

Figure 7. Model C Horizontal concealed unit

22 UNT-SVX07E-EN

Page 23

Dimensions and Weights

Table 5. Model C Horizontal concealed unit dimensions (inches)

Unit Size 200-300 400 600 800 1000-1200

No. Fans1122 3

No.Motors 1 1 1 1 2

A 32 11/16 37 11/16 47 3/16 55 11/16 74 11/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 22 13/16 27 13/16 37 5/16 45 13/16 64 13/16

D 19 3/8 24 3/8 33 7/8 42 3/8 61 3/8

E 18 1/8 23 1/8 32 5/8 41 1/8 60 1/8

F 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 23

Page 24

Top View

Back inlet duct collar

8 in. 8 in.

Back and bottom

inlet louvers

Optional

disconnect

switch

Aux box

Control

box

(4) 5/8 in. dia keyslot hanger holes

Secondary drain connection for 3/8 in. ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

15 1/2 in.

7/8 in.

KO control

wiring

(2) 5/8 in.

bolt holes

Front View RH Piping

Unit control front

Front outlet

duct collar (optional)

6 in.

3 3/4 in.

13 3/4 in.

3 3/4 in.

1 5/8 in.

Front outlet

quadrifuser or bar grille

8 in.

F Optional extended end pocket

2 7/8 in.

1 3/8 in.

Aux box opt.

6 1/4 in.

Control box

1 3/32 in. KO

7/8 in. KO

Power wiring bottom only

Front View LH Piping

Coil connections

1 1/8 in.

Aux Box optional

Control boxAuxiliary

drain pan

Filters

2 1/4 in.

Bottom inlet

louvers

7 5/16 in.

1 in. duct

collar

Side View

Inlet and outlet

options

1 3/4 in.

7 in.

Filters

Back inlet

duct collar

1 in. front outlet duct collar

27 13/16 in.

26 13/16 in.

1 3/4 in.

7 in.

10 5/16 in.

Back inlet

louvers

Bottom access panel - all units

90° to fully open

8 7/8 in.

3 5/8 in.

4 in.

Air

flow

Filters

Dimensions and Weights

Model D Horizontal Cabinet

Figure 8. Model D Horizontal Cabinet

24 UNT-SVX07E-EN

Page 25

Dimensions and Weights

Table 6. Model D Horizontal cabinet dimensions (inches)

Unit Size 200-300 400 600 800 1000-1200

No. of Fans 1 1 2 2 3

No. of Motors 1 1 1 1 2

A 33 5/16 38 5/16 47 3/16 56 5/16 75 5/16 B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16 C 7 5/8 7 1/8 8 7/8 7 1/8 7 5/8 D 18 24 30 42 60 E 17 1/4 22 1/4 19 3/4 40 1/4 40 1/4 F 41 1/4 46 5/16 55 3/16 64 5/16 83 5/16 G 8 5/8 8 1/8 9 7/8 8 1/8 8 5/8 H 16 22 28 40 58

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for locations.

J 19 3/4 23 3/4 31 3/4 39 3/4 59 3/4

All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 25

Page 26

Dimensions and Weights

Top View

8 13/16 in.

(4) 5/8 in. dia keyslot hanger holes

Optional disconnect switch

5 1/4 in.

Aux box

3 1/4 in.

15 1/2 in.

Control box

Back inlet duct collar

Bottom inlet louvers

8 13/16 in.

1 1/2 in.

3/4 in.

29 7/8 in.

1 5/8 in.

5 5/16 in.

2 in.

7/8 in. KO control wiring

1 11/16 in.

3/4 in.

1 3/4 in.

3/4 in.

F Access Panel

G Ceiling opening

Secondary drain connection for 3/8 in. ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

28 3/8 in.

ceiling

opening

26 7/8 in.

bottom

access panel

Side View

Inlet Options

15 5/16 in.

Front View

RH Piping

1 1/2 in.

3/4 in.

1 11/16 in.

3/4 in.

2 7/8 in.

1 3/8 in. Aux box optional

6 1/4 in.

Control

box

8 3/16 in.

1 7/16 in.

7/8 in. KO

1 3/32 in. KO

Power wiring back only

1 1/8 in.

Coil connections

Auxiliary

drain pan

Front View

LH Piping

Ctrl box

1 11/16 in.1 11/16 in.

(4) 5/8 in. dia keyslot hanger holes

2 7/16 in.

8 7/8 in.

5 5/16 in.

8 3/16 in.

1 7/16 in.

Bottom access panel - all units

90° to full open

Back inlet duct collar

1 7/16 in.

1 1/8 in.

Front outlet

duct collar

1 in. duct collar

27 3/16 in.

back duct collar

26 3/16 in.

bottom inlet louvers

2 3/16 in.

1 in. duct collar

5/8 in.

6 1/8 in.

Filters

Air

flow

7 5/16 in.

Bottom inlet

louvers

3 13/16 in.

11 1/2 in. - 12 3/4 in.

bottom inlet

10 1/2 in. - 12 1/2 in.

back inlet

Filters

Model E Horizontal Recessed

Figure 9. Model E Horizontal Recessed

26 UNT-SVX07E-EN

Page 27

Dimensions and Weights

Table 7. Model E Horizontal recessed unit dimensions (inches)

Unit Size 200-300 400 600 800 1000-1200

No. Fans 1 1 2 2 3

No. Motors 1 1 1 1 2

A 35 13/16 40 13/16 50 5/16 58 13/16 77 13/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 22 13/16 27 13/16 37 5/16 45 13/16 64 13/16

D 19 3/8 24 3/8 33 7/8 42 3/8 61 3/8

E 18 1/8 23 1/8 32 5/8 41 1/8 60 1/8

F 32 7/16 37 7/16 46 15/16 55 7/16 74 7/16

G 34 5/16 39 5/16 48 13/16 57 5/16 76 5/16

H 19 3/4 23 3/4 31 3/4 39 3/4 59 3/4

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 27

Page 28

Dimensions and Weights

Top View

Unit control top

Top outlet quadrifuser

or bar grille

6 in.

7 in.

Front View RH Piping

(4) 5/8 in. dia keyslot hanger holes

Power wiring

bottom

only

7/8 in. KO

1 3/32 in. KO

6 1/4 in.

1 3/8 in.

2 7/8 in.

(2) 5/8 in. bolt holes

Side View

10 5/16 in.

1 5/8 in.

15 1/2 in.

26 13/16 in.

8 9/16 in.

Bottom and front

inlet and outlet louvers

8 5/16 in.

5 1/4 in.

Front inlet louvers

Front outlet louvers

(optional)

Optional

disconnect

switch

Auxiliary control box optional

Control box

Air

flow

1 1/4 in.

4 in.

Bottom inlet

louvers

Front View LH Piping

Coil connections

7/8 in. KO control wiring

Control

box

1 1/8 in.

Filters

Model F Vertical Wall Hung Cabinet

Force Flo Units Only

Figure 10. Model F Vertical Wall Hung Cabinet (Force Flo only)

28 UNT-SVX07E-EN

Page 29

Dimensions and Weights

Table 8. Model F Vertical wall hun g ca bin et unit dimensions (inches)

Unit Size 200-300 400 600 800 1000-1200

No. Fans 1 1 2 2 3

No. Motors 1 1 1 1 2

A 33 5/16 38 5/16 47 13/16 56 5/16 75 5/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 7 5/8 7 1/8 8 7/8 7 1/8 7 5/8

D 18 24 30 42 60

E 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

F 19 3/4 23 3/4 31 3/4 39 3/4 59 3/4

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for locations.

All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 29

Page 30

Dimensions and Weights

Top View

Front View RH Piping

Front View LH Piping

Side View

5 1/2 in.

1 3/4 in. 1 3/4 in.

(4) 5/8 in. dia keyslot hanger holes

3 7/16 in.

5 5/16 in.

Top outlet

duct collar (optional)

6 5/8 in.

Power wiring bottom only

7/8 in. KO 1 3/32 in. KO

2 5/16 in.

4 9/16 in.

1 in.

3/4 in.

1 3/4 in.

3/4 in.

1 3/4 in.

6 5/8 in.

7/8 in. KO

control wiring

Front outlet louvers

Control

box

Optional

disconnect

switch

7 5/8 in.

4 7/16 in.

6 15/16 in.

Front inlet louvers

6 7/16 in.

H Wall opening

F Front panel

Wall

opening

15 1/2 in.

7 in.

(4) 5/8 in. dia keyslot

hanger holes

1 in.

4 15/16 in.

7 in.

E Front panel

Coil connections

Auxiliary

drain pan

1 1/8 in.

1 in.

Wall opening

Power wiring 7/8 in.

or 1 3/32 in. KOs

Front

control

access

(optional)

15 3/8 in.

4 15/16 in.

Control

box

5/8 in.

1 in. duct collar

25 1/4 in.

10 1/16 in.

1 9/16 in.

5 7/16 in.

Filters

Main drain connection

for 7/8 in. OD copper

tube and clamp

Secondary

drain connection

for 3/8 in. ID tube

9 3/4 in.

1 in.

Model H Vertical Recessed

Figure 11. Model H Vertical Recessed

30 UNT-SVX07E-EN

Page 31

Dimensions and Weights

Table 9. Model H Vertical Recessed Unit

Unit Size 200-300 400 600 800 1000-1200

No. Fans 1 1 2 2 3

No. Motors 1 1 1 1 2

A 32 11/16 37 11/16 47 3/16 55 11/16 74 11/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 22 13/16 27 13/16 37 5/16 45 13/16 64 13/16

D 17 5/16 22 5/16 31 13/16 40 5/16 59 5/16

E 47 51 63 65 1/2 89 1/2

F 30 30 30 33 1/2 33 1/2

G 2 3/8 2 3/8 2 3/8 4 1/8 4 1/8

H 42 48 57 63 87

J 26 1/2 26 1/2 26 1/2 27 1/2 27 1/2

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 31

Page 32

Dimensions and Weights

Top View

6 5/8 in.

1 1/16 in.

6 1/2 in.

(4) Unit leveling devices

(optional)

6 5/8 in.

2 7/8 in.

1 3/8 in.

6 1/4 in.

Power wiring

bottom

only

7/8 in. KO

1 3/32 in. KO

Unit control top

Top outlet

Quadrifuser or bar grille

Front View RH Piping

6 in.

7/8 in. KO

control wiring

Optional

disconnect

switch

Auxiliary

control box

optional

5 1/4 in.

6 11/16 in.

Control

box

Front inlet

open or bar grille

4 7/16 in.

7 in.

8 in.

F Optional extended end pocket

Front View LH Piping

Coil connections

Auxiliary

drain pan

1 1/8 in.

Filters

Control

box

Aux box

Power wiring 7/8 in.

or 1 3/32 in. KOs

(4) 5/8 in. dia keyslot hanger holes

(2) 5/8 in. bolt holes

10 in.

Side View

Air flow

28 1/2 in.

15 1/2 in.

24 7/8 in.

6 15/16 in.

5 1/16 in.

Secondary drain connection for 3/8 in ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

5 7/16 in.

1 9/16 in.

1 5/8 in.

10 in.

Model J Vertical Slope Top Cabinet

Figure 12. Model J Vertical Slope Top

32 UNT-SVX07E-EN

Page 33

Dimensions and Weights

Table 10. Model J Vertical slope top cabinet unit dimensions

Unit Size 200-300 400 600 800 1000-1200

No. Fans 1 1 2 2 3

No. Motors 1 1 1 1 2

A 33 5/16 38 5/16 47 13/16 56 5/16 75 5/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 7 5/8 7 1/8 8 7/8 7 1/8 7 5/8

D 18 24 30 42 60

E 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

F 41 5/16 46 5/16 55 13/16 64 5/16 81 5/16

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 33

Page 34

Dimensions and Weights

9-5/16

(2) 7/8 in. KO Power wiring bottom only

Top View

(2) 5/8 in. dia keyslot hanger holes

2 3/8 in.

12 1/4 in.

12 1/2 in.

2 9/16 in.

3 3/8 in.

1 1/16 in. 1 1/16 in.

7 in.

9 5/16 in.

Top outlet duct collar

6 1/4 in.

6 in.

1 13/16 in.

(2) 1 3/32 in. KOs control

wiring bottom only

12 9/16 in.

2 11/16 in.

Front View

RH Piping

Control

box

3 9/16 in.

7 1/4 in.

13 1/4 in.

7/8 in.

(2) 5/8 in. dia keyslot hanger holes

7/8 in.

Front inlet

open

10 11/16 in.

3 1/4 in.

6 7/16 in.

1 1/8 in.

1 5/16 in.

14 1/4 in.

Control

box

Auxiliary drain pains

Coil connections

Front View LH Piping

Side

View

14 1/2 in.

13 1/2 in.

1 15/16 in.

14 in.

Main drain connection

for 7/8 in. OD copper

tube and clamp

Secondary drain connection

for 3/8 in. ID tube

2 in.

Air flow

Filters

5/8 in. duct collar

Model K Low Vertical Concealed

Figure 13. Model K Low Vertical Concealed

34 UNT-SVX07E-EN

Page 35

Dimensions and Weights

Table 11. Model K Low vertical concealed unit dimensions (in.) and weights (lb)

Unit Size 03 04 06

A 41-7/16 50-15/16 59-7/16

B 26-1/4 35-3/4 44-1/4

C 27-15/16 36-13/16” 45-15/16

D 22-5/16 31-13/16 40-5/16

E 24-1/4 33-3/4 42-1/4

Operating Weight 109 139 147

Shipping Weight 96 123 131

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings. Serviceability for some components within this unit may require panel or drain pan removal.

UNT-SVX07E-EN 35

Page 36

4-7/16"

10 15/16 in. 10 15/16 in.

3 1/16 in.

12 1/4 in.

12 1/2 in.

3 7/8 in.

7 1/2 in.

9 13/16 in.

13 3/16 in.

2 3/8 in.

(2) 7/8 in. KO power wiring bottom only

(2) 1 3/32 in. KOs control wiring bottom only

(4) Unit leveling devices (optional)

(2) 5/8 in. dia keyslot hanger holes

Top outlet quadrifuser

or bar grille

13 1/2 in.

1 15/16 in.

Air

flow

Side View

(2) 5/8 in. dia keyslot hanger holes

7/8 in.

Front View

LH Piping

Front View

RH Piping

Unit control top

8 1/2 in.

Top View

1 13/16 in.

7/8 in.

2 11/16 in.

11 5/16 in.

6 7/16 in.

3 1/4 in.

Front inlet bar grille

Bottom of control box

Control

box

1 5/16 in.

14 1/2 in.

1 1/8 in.

Main drain connection

for 7/8 in. OD copper

tube and clamp

Secondary drain connection

for 3/8 in. ID tube

Control

box

2 in.

Auxiliary

drain pan

Coil connections

Filters

Dimensions and Weights

Model L Low Vertical Cabinet

Figure 14. Model L Low vertical cabinet

36 UNT-SVX07E-EN

Page 37

Dimensions and Weights

Table 12. Model K Low vertical cabinet unit dimensions (in.) and weights (lb)

Unit Size 03 04 06

A 46 15/16 56 7/16 64 15/16

B 26 1/4 35 3/4 44 1/4

C 11 7/16 13 5/16 11 7/16

D 24 30 42

E 24 1/4 33 3/4 42 1/4

Operating Weight 125 155 164

Shipping Weight 112 139 148

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

UNT-SVX07E-EN 37

Page 38

Dimensions and Weights

Top View

Unit control top

4 9/16 in.

2 5/16 in.

6 5/8 in.

Power wiring

bottom

only

7/8 in.

1 3/32 in.

Top outlet quadrifuser

or bar grille

6 in.

7 in.

6 in.

7 in.

Front view

RH Piping

Optional

disconnect

switch

9 1/4 in.

Front outlet louvers

(optional)

Front inlet louvers

Bottom and front

inlet and outlet louvers

15 1/2 in.

26 13/16 in.

8 9/16 in.

(4) 5/8 in. dia keyslot

hanger holes

Control

box

10 5/16 in.

Bottom inlet louvers

1 1/4 in.

4 in.

Air

flow

Side View

Front View LH Piping

Coil connections

1 1/8 in.

Filters

Control box

7/8 in. KKO control wiring

Model M Inverted Vertical Cabinet

Force-Flo Unit Only

38 UNT-SVX07E-EN

Page 39

Dimensions and Weights

Table 13. Model M Inverted vertical cabinet unit dimensions (in.) and weights (lb)

Unit Size 02–03 04 06 08 10–12

A 33 5/16 38 5/16 47 13/16 56 5/16 75 5/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 7 5/8 7 1/8 8 7/8 7 1/8 7 5/8

D 18 24 30 42 60

E 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

F 19 3/4 23 3/4 31 3/4 39 3/4 59 3/4

Operating Weight 97 125 155 164 218

Shipping Weight 84 112 139 148 200

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 39

Page 40

Dimensions and Weights

Front View LH Piping

Front View RH Piping

Side View

Top View

1 3/4 in.

(4) 5/8 in. dia keyslot hanger holes

5 1/2 in.

6 5/8 in.

Power wiring bottom only

7/8 in. KO

1 3/32 in. KO

2 5/16 in.

4 9/16 in.

3/4 in.

1 3/4 in.

Optional disconnect switch

3/4 in.

1 3/4 in.

6 5/8 in.

5/8 in. 9 3/4 in.

Front

panel

Wall

opening

15 1/2 in.

2 1/8 in.

(4) 5/8 in. dia keyslot hander holes

1 in.

Front outlet louvers

Control box

7/8 in. KO

control

wiring

6 15/16 in.

H Wall opening

E Front panel

7 in.

4 15/16 in.

Filters

Coil connections

4 15/16 in.

15 3/8 in.

1 1/8 in.

1 in. Wall opening

Control box

Front control access (optional)

25 1/4 in.

Air

flow

Model N Inverted Vertical Recessed

Force-Flo Unit Only

40 UNT-SVX07E-EN

Page 41

Dimensions and Weights

Table 14. Model N Inverted vertical recessed unit dimensions (in.) and weights (lb)

Unit Size 02–03 04 06 08 10–12

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

A 27 7/8 32 7/8 42 3/8 50 7/8 69 7/8 B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16 C 22 13/16 27 13/16 37 5/16 45 13/16 64 13/16 D 2 3/8 2 3/8 2 3/8 4 1/8 4 1/8 E 47 51 63 65 1/2 89 1/2 F 30 30 30 33 1/2 33 1/2 G 26 1/2 26 1/2 26 1/2 27 1/2 27 1/2 H 42 48” 57 63 87

Operating Weight 78 88 128 139 253

Shipping Weight 68 78 118 129 243

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

UNT-SVX07E-EN 41

Page 42

Dimensions and Weights

Top View

Front View RH Piping

Front View LH Piping

Side View Inlet Options

2 5/16 in.

Back inlet duct collar

9/16 in. 9/16 in.

Optional discoonect switch

15 1/2 in.

7/8 in. KO control wiring

3 1/4 in.

2 in.

3/4 in.

1 3/4 in. 1 3/4 in.

D6 15/16 in.

Control box

2 5/16 in.

3 1/4 in.

(4) 5/8 in. dia keyslot hanger holes

Secondary drain connection for 3/8 in. ID tube

Main drain connection for 7/8 in. OD copper tube and clamp

1 in. duct collar

5/8 in.

6 1/8 in.

14 1/8 in.

Back inlet duct collar

Filter door used with back duct collar only

Filters

3/4 in.

1 11/16 in. 1 11/16 in.

6 3/8 in.

2 7/16 in.

8 7/8 in.

5 5/16 in.

6/5/8 in.

Control box

2 5/16 in.

4 9/16 in.

1 3/32 in. KO

7/8 in. KO

Power wiring bottom only

1 1/8 in.

Coil connections

Auxiliary drain pan

Control box

27 3/16 in.

Back duct collar

5/8 in.

1 in. duct collar

Air flow

10 1/16 in.

4 7/8 in. x F

26 3/4 in.

Bottom inlet open

Filters

(4) 5/8 in. dia keyslot hanger holes

Front outlet

duct collar

Mode P Compact Concealed

Figure 15. Model P Compact Concealed

42 UNT-SVX07E-EN

Page 43

Dimensions and Weights

8 3/16 in. RHR

5 5/16 in. CS

4 7/8 in. RHS

4 3/8 in. CR

4 in. HS

2 5/16 in. HR

Dimensions are typical to vertical unit styles.

Vertical Concealed

Vertical Recessed (recess panel not shown)

Vertical Cabinet

Vertical Slope Top

RHS

RHR

RHS

RHR

23 1/4 in.

RHS

19 15/16 in.

RHR

18 11/16 in.

20 1/2 in.

20 13/16 in.

21 13/16 in.

Bottom of Vertical Units

Table 15. Compact concealed unit dimensions (in.)

Unit Size 200-300 400 600 800 1000-1200

A 32 11/16 37 11/16 47 3/16 55 11/16 74 11/16

B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

C 22 13/16 27 13/16 37 5/16 45 13/16 64 13/16

D 19 3/8 24 3/8 33 7/8 42 3/8 61 3/8

E 18 1/8 23 1/8 32 5/8 41 1/8 60 1/8

F 19 5/16 24 5/16 33 13/16 42 5/16 61 5/16

Notes: Coil connections are always on the drain pan side and opposite the control box. Coil connections are 5/8-in. O.D. sweat. See page 43 for

locations. All duct collar dimensions are to the outside of the collar. See page 47 for dimensions for outside air openings.

Coil Connections

Fan Coil Vertical Units

Figure 16. Coil connections for f an coil vertical units

UNT-SVX07E-EN 43

Page 44

Dimensions and Weights

Horizontal Concealed

Horizontal Recessed (Recess panel not shown)

RHS

RHR

1 in.

7/16 in.

22 3/8 in. CS

21 3/8 in. CR

21 1/16 in. HR

19 5/16 in. HSDimensions are typical

to horizontal unit styles.

5 5/16 in.

4 7/8 in.

RHS

4 3/8 in.

8 3/16 in.

RHR

Horizontal Cabinet

RHR

RHS

20 9/16 in. RHR

23 7/8 in. RHS

2 5/16 in. HR

4 in. HS

Fan Coil Horizontal Units

Figure 17. Coil connections for fan coil horizontal units

44 UNT-SVX07E-EN

Page 45

Force Flo Vertical Units

5 5/16 in. HS

4 3/8 in. HR

5 5/16 in. HS

4 3/8 in. HR

5 3/8 in. HS

4 7/16 in. HR

5 5/16 in. HS

4 3/8 in. HR

23 3/8 in.

22 3/8 in.

20 13/16 in.

21 13/16 in.

Vertical Concealed Vertical Recessed

(recess panel not shown)

Vertical Cabinet Vertical Slope

Top Cabinet

Vertical Wall Hung Cabinet

Bottom of

Vertical Units

Figure 18. Coil connections for Force Flo cabinet heater vertical units

Dimensions and Weights

UNT-SVX07E-EN 45

Page 46

Dimensions and Weights

Horizontal Concealed

Horizontal Recessed

(recess panel not shown)

1 in.

4 3/8 in.

5 5/16 in.

7/16 in.

22 3/8 in. HS

21 3/8 in. HR

Horizontal Cabinet

4 3/8 in.

5 5/16 in.

Inverted Vertical Cabinet

4 7/16 in.

5 7/16 in.

4 3/8 in. HR

5 5/16 in. HS

Inverted Vertical Recessed

2 13/16 in.

3 13/16 in.

Force Flo Horizontal and Inverted Units

Figure 19. Coil connection s for Force Flo cabinet heater horizontal units and inverted vertical units

46 UNT-SVX07E-EN

Page 47

Dimensions and Weights

1 5/8 in.

Outside air

opening - back

Outside air

opening - top

Keyslot hanger holes

Outside air

opening - back

1 5/8 in.

Outside air

opening - top

Keyslot hanger holes

1 5/8 in.

2 15/16 in.

Top View

Horizontal

Cabinet

Horizontal Concealed

and Recessed

Outside air

opening - top

3 in.

1 in.

11/16 in. 3 in.

Side View

Outside air

opening - top

3 in.

1 5/8 in.

11/16 in.

1 5/8 in.

2 15/16 in.

Side View

Outside air

opening - back

3 in.

Outside air

opening - back

Fresh Air Opening Locations

Horizontal Units

Figure 20. Fresh air openings for horizontal units (models C, D, E, and P (back duct collar only)

Table 16. Fresh air opening dimensions (inc hes) for horizontal units

Unit Size 02–03 04 06 08 10–12

A 18 23 32 1/2 41 60 B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

UNT-SVX07E-EN 47

Page 48

Dimensions and Weights

1 5/8 in.

Outside air

opening - back

Outside air

opening - back

Outside air

opening - bottom

1 5/8 in.

Outside air

opening - back

Outside air

opening - back

Outside air

opening - bottom

2 15/16 in.

Keyslot hanger holes

1 5/8 in.

Vertical Cabinet and

Vertical Slope Top Cabinet

Front View

Side View

Vertical Concealed

and Recessed

Keyslot hanger holes

2 15/16 in.

1 5/8 in.

3 in. 3/4 in.

1 in.

3 in.

Outside air opening - back

Outside air

opening - bottom

Outside air

opening - bottom

3 in.

11/16 in.

1 in.

Outside air

opening - back

3 in.

Vertical Units

Figure 21. Fresh air openings for vertical units (models A, B, F, H, J, K, L, M, and N

Table 17. Fresh ai r ope ning dimensions (inches) for v e rtical units

Unit Size 02–03 04 06 08 10–12

A 18 23 32 1/2 41 60 B 21 5/16 26 5/16 35 13/16 44 5/16 63 5/16

48 UNT-SVX07E-EN

Page 49

Additional internal supports equally spaced not to exceed 12 inches O.C.

Continuous drip lip top and bottom

5/8 in.

1/2 in.

1 3/8 in.

1/8 in.

Woven aluminum insect screen

Clearance for drainage

4 in.

1/2 in.

3/4 in.

1/8 in.

Continuous mortar ribs top and bottom

Dimensions and Weights

Wall Box

Figure 22. Wall box

Table 18. Wall box dimensions (inches)

Unit Size (ref. only) Dimensions A x B Internal Supports

02–03 24 3/8 x 4 3/4 1

04 24 3/8 x 7 1/2 1 06 33 1/8 x 7 1/2 2 08 37 1/2 x 7 1/2 3

10–12 58 1/4 x 7 1/2 4

UNT-SVX07E-EN 49

Page 50

Dimensions and Weights

Finished wall

Unit chasis end panel

Projection panel

7/8 in.

2 in. min. 6 in. max.

Front View ISO

Rear view ISO

Projection Panel

Figure 23. Projection panel

Table 19. Projection panel dimensions (inches)

Unit Size 02–03 04 06 08 10–12

A 47 51 63 65 1/2 89 1/2 B 30 30 30 33 1/2 33 1/2

Table 20. Projection panel dimensions (inches)

Unit Size All sizes

C 2 2-1/2 3 3 1/2 4 4 1/2 5 5 1/2 6 2 D 1 1/8 1 5/8 2 1/8 2 5/8 3 1/8 3 5/8 4 1/8 4 5/8 5 1/8 1 1/8 E 8 5/8 8 1/8 7 5/8 7 1/8 6 5/8 6 1/8 5 5/8 5 1/8 4 5/8 8 5/8

50 UNT-SVX07E-EN

Page 51

Installation—Mechanical

Installation Checklist

The following checklist is only an abbreviated guide to the detailed installation procedures given in this manual. Use this list to ensure all necessary procedures are complete. For more detailed information, refer to the appropriate sections in this manual.

WARNING

Hazardous Voltage w/Capacitors!

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

 1. Inspect the unit for shipping damage.  2. Level installation location to support the unit

weight adequately. Make all necessary wall or ceiling openings to allow adequate air flow and service clearances.

 3. Ensure the unit chassis is installed level.

NOTICE:

Unit Leveling!

The unit must be installed level (zero tolerance) in both horizontal axis for pr oper operation. Do not use the coil or drain pan as the refer ence point because the coil may be pitched and the drain pan has an inherent positiv e slope to provide proper drainage.

 7 . Chec k field sweat connections for leaks and tighten

the valve stem pac king, and piping pac kage unions if necessary.

 8. Install the auxiliary drain pan, if ordered, properly

under piping package on fan-coil units.

 9. Complete condensate drain line connections on

fan-coil units.

 10. Pitch condensate drain line away from fan-coil one-

inch drop per ten feet of pipe.

 1 1. Install automatic c hangeo ver sensor option on the

supply water line, if applicable.

 12. Install condensate overflow switc h option correctly

on the auxiliary drain pan, if applicable.

 13. Ensure the low temperature detection device

option is correctly installed.

 14. Complete all necessary duct connections.  15. Complete all interconnection wiring for the wall-

mounted fan mode switch or zone sensor per the wiring schematic and guidelines established in

“Interconnection Wiring,” page 79 .

 16. Install the wall-mounted fan m ode swit ch, or zone

sensor module options properly. For wireless zone sensors, be sure to set the

address (see “Address Setting,” page 77).

 17. Make field mounted controller / fan speed switch

connections to CSTI / FSS as indicated on unit schematic.

 18. Connect electrical supply power according to the

NEC and unit wiring diagrams.

 19. Remove any miscellaneous debris, such as

sheetrock dust, that may have infiltrated the unit during construction.

 20. Replace the air filter as required.

 4. Verify that wall and ceiling openings are properly

cut per the unit submittals.

 5. Verify that installation of horizontal concealed units

meets the national Fire Protection Association (N.F.P.A.) Standard 90A or 90B concerning the use of concealed ceiling spaces as return air plenums. Verify correct ceiling opening dimensions on unit submittals.

Secure the unit and any accessory items properly to the wall or ceiling support rods.

 6. Complete all piping connections correctly.

UNT-SVX07E-EN 51

Page 52

Installation—Mechanical

Installing the Unit

Follow the procedures below to install the unit properly. Refer to “Dimensions and Weights,” page 15 for specific unit dimensions and mounting hole locations.

Note: Any modifications, additions or changes to the

control box could void the factory war ranty and UL certification. Such modification, additions or changes will become the responsibly of the modifying contractor.

Vertical Units

NOTICE:

Electrical Wiring!

Do not allow electrical wire t o f all between the unit and installation surface. Failure to comply may result in electrical shorts or difficulty accessing wires.

Note: Any modifications, additions or changes to the

control box could void the factory war ranty and UL certification. Such modification, additions or changes will become the responsibly of the modifying contractor.

Install vertical units in an upright position using the 5/8inch diameter double key slot hanger holes or 5/8-inch bolt holes, located on the bac k of unit. The hanger h oles allow a maximum shank size of 5/16-inch diameter threaded rods or lag screws (installer provides).

1. Prepare wall openings for recessed units. Reference unit submittal for each unit size dimensions. When installing vertical units, considerat ion should be given for units with an outside air intake.

2. If the unit has leveling legs, adjust them correctly to level unit.

3. Mark the po sition of the hanger holes on the wall according to the dimensions given in “Dimensions and

Weights,” page 12 for each unit mo de l a nd size. Align

the hole locations evenly.

4. Insert the threaded rods or lag screws in the wall before setting the unit in place.

5. Remove the front panel (cabinet unit only) by lifting it upward.

6. Position the hanger holes, located on the back of the unit, over the rod or lag screw heads, pushing the unit downward to properly position.

7 . Complete piping and wiring co nnections, in addition to

any necessary ductwork to the unit as instructed in the following sections. Ensure that the auxiliary drain pan is in position on fan-coil units.

8. Install the front panel before starting the unit.

On cabinet units, replace the front panel by aligning the bottom tabs on the unit with the respective slots on the panel bottom. Slide the front panel down onto the tabs

while holding the panel close as possible to the cabinet. While the bottom tabs are engaged, slide the front panel upward enough to allow the to p engaging edge of the front panel to lap over the engagi ng edg e of the uni t . Thi s should allow the panel to drop down and lock into position.

On recessed units, install the front panel by aligning and locking together the interlocking support channel of the panel and unit. While holding the panel against the unit, tighten the screws at the top of the panel until it fits tight against the unit’s front. Do not over tighten the screws.

NOTICE:

Motor Overload!

All unit panels and filters must be in place prior to unit startup. Failure to have panels and filters in place may cause motor overload.

Horizontal Units

Install horizontal units suspende d fr om the ce iling using the four 5/8-inch diameter double key slot hanger holes or the 5/8-inch bolt holes located on the top of the unit. The hanger holes allow a maximum shank size of 5/16-inch diameter threaded rods or lag screws (installer provided). Follow the installation procedure below.

Note: Follow the requirements of National Fire Protection

Association (NFPA) Standard 90A or 90B, concerning the use of concealed ceiling spaces as return air plenums.

1. Prepare the ceiling openin g for recessed units. Reference the unit submittals for dimensions.

2. Position and install the suspension rods or a suspension device (supplied by installer) according to the unit model and size in “Dimensions and W eights,”

page 12.

3. On cabinet units, remove the bottom panel by using a 5/32-inc h Allen wrench to unscrew fasteners. Swing the panel down and lift outward.

4. Level the unit by referencing the chassis end panels. Adjust the suspension device.

5. Complete piping and wiring connections, in addition to any necessary ductwork as instructed in the following sections. Ensure that the auxiliary drain pan is in position on fan-coil units.

6. Install the bottom panel before starting the unit.

7. Ensure condensate drain line is pitched one inch per ten feet of pipe away from the fan-coil unit.

52 UNT-SVX07E-EN

Page 53

Installation—Mechanical

0.25-20 x 0.50 in. retaining screw

S-hook

0.25-20 x 3.50 in. mounting bolt

Trim ring assembly

S-hook

Tinnerman clips

Horizontal recessed unit (front discharge unit shown)

Angle bracke

Expansion collar assembly (See notes)

Typical opposite

Panel brackets

1 in. x 1 in. open cell insulation

Retaining ring

Bottom panel door

See notes

Cabinet Units

Install the bottom p anel by pla cing the hin ged end on the unit’s hinged end (always at the return end of the unit). Refer to “Dimensions and Weights,” page 12 for keyslot hanger hole locations. Swing the panel upward into position. Secure the panel with the fasteners provided. Do not overtighten the fasteners.

Recessed Units

Refer to “Dimensions and W eights,” page 12 for mounting locations and unit weights. Follow the procedure below and see Figure 24, p. 53.

1 . Insert the mounting bolts through the panel brackets of

the trim ring and secure to the hanger holes on the unit. Tighten the mounting bolts to pull the trim ring snug against the finished ceiling.

2. Install the bottom panel by placing the hinged end on the trim ring hinged end (always at the unit’s return end).

3. Adjust the expansion collar’s inner duct (only on fancoil units with a bottom return) to ensure a tight fit against the insulation located on the perimeter of the bottom panel’s return louver.

4. Close the s-hook on each end of safety c hain assembly. Insert s-hooks through holes in unit and door. Close shook on door.

5. Insert retaining screws through bot tom panel door and place retaining rings on screws.

6. Swing the bottom panel upward into position . Ho ok the safety chain to the bottom panel and the unit. Tighten the panel to the unit with the fasteners provided.

NOTICE:

Unit Leveling!

All unit panels and filters must be in place prior to unit start-up. Failure to have panels and filters in place may cause motor overload.

Figure 24. Installing the trim ring assembly on

horizontal recessed units

Notes:

• The trim ring assembly cannot accommodate unlevel ceilings.

• On sizes 8, 10, and 12 center installation position and use 2- or 3.5inch bolts, whichever is best suited for installation. Also, install two safety chains assemblies on these sizes.

• Expansion collar is furnished with fan-coil with bottom return only. The collar is not necessary for Force-Flo units.

Table 21. Parts list for trim ring assembly

Part description Quantity

Bottom panel door 1 Trim ring assembly 1

Installation drawing 1 Unit size 02-06 08-12

0.25 - 20 x 0.50 in. retaining screw 2 3 Retaining ring 23 Safety chain assembly 1 2

0.25-20 x 3.50 in. bolt 4 5

0.25-20 x 2.00 in. bolt 0 1 Tinnerman clip 4 5

UNT-SVX07E-EN 53

Page 54

Installation—Mechanical

Duct Connections

Install all air ducts according to National Fire Protection Association standards for the Installation of Air Conditioning and Ventilating Systems (NFPA 90A and 90B).

Install all air ducts according to the National Fire Protection Association standards for the “Installation of Air Conditioning and Ventilation Systems other than Residence T ype (NFP A 90A) and Residence T ype Warm Air Heating and Air Conditioning Systems (NFPA 90B).

WARNING

Hazardous Voltage w/Capacitors!

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

The unit’s airflow configuration varies dependent on the model and options ordered. A one-inch duct collar is provided on units with a ducted return and/or discharge to attach ductwork to the unit.

Trane recommends using galvanized sheet metal ductwork with fan-coil and cabinet heater units. Slide the sheet metal duct over the duct collar flange of the unit, seal the joint and fasten with sheet metal screws.

Note: Do not run screws through the removable front

panel on concealed units.

Ductwork Recommendations

Follow the general recommendations listed below when installing ductwork for the unit.

• Discharge ductwork should run in a straight line,

unchanged in size or direction, for a minimum equivalent distance of three fan diameters fro m the unit (approximately 20 inches).

• When making duct turns and transitions avoid sharp

turns and use proportional splits, turning vanes, and air scoops when necessary.

• When possible, construct, and orient supply ductwork

turns in the same direction as the fan rotation.

54 UNT-SVX07E-EN

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Coil Piping and Connections

Auto Circuit Setter (C)

Factory-Installed Piping Packages

Figure 25. Piping package arrangem ents

This figure shows piping package components and basic arrangement. It is not an accurate pictorial of what factoryinstalled piping packages look like.

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Coil Piping and Connections

Hydr onic Coil Piping

Before installing field piping to the coil, consider the following:

• All coil connections are 5/8-inch O.D. (or 1/2-inch nominal) female copper connections.

• The supply and return piping should not interfere with the auxiliary drain pan or condensate line. See “Connecting the Condensate Drain” section for more detailed information.

• The installer must provide adequate piping system filtration and water treatment.

• Exterior condensate may be an issue (fan-coils only) if field piping does not have a control valve. Refer to the supply and return header locations in the “Dimensions and Weights” section.

Note: When using a field supplied piping package in a

fan-coil unit, allow sufficient room to install the auxiliary drain pan. In addition, piping package must not extend over edges of auxiliary drain pan.

Connecting Field Piping to Coil

1. Remove the auxiliary drain pan, if it is in place, to prevent exposure to dripping solder or excessi ve temperatures.

2. Slide a 1/2-inch sweat connection coupling (installer provided) onto the coil headers.

Note: For vertical fan-coil units, push the main

condensate drain hose and overflow condensate drain hose through the inside of the chassis end panel to prevent them from getting burned when making sweat connections. Be sure to pull the hoses back through and route to the auxiliary drain pan wh en the end panel has cooled.

3. Solder the joint using bridgit lead-free solder (ASTM B32-89) to provide a watertight connection. Avoid overheating factory soldered joints when soldering field connections to the coil to prevent leakage from occurring.

4. Insulate all piping to coil connections as necessary after connections are complete.

Note: Maintain a minimum distance of one foot

between the reduction fitting for the diameter line and the fan-coil unit piping connections.

5. Install the optional auxiliary drain pan, which ships in the accessory packet.

/2-inch

Water Piping Connections

Before installing water piping supply and return lines to factory piping package, note the following items.

• All piping connections are 5/8-inch O.D. (1/2-inch nominal) female copper connections.

• The fan-coil supply and return piping should not interfere with the auxiliary drain pan or condensate line. See “Condensate Drain Connections,” page 56 for more information.

• The installer must provide adequate piping system filtration and water treatment.

• If the unit has a factory deluxe piping package, the piping includes a strainer with a 20-mesh siz e screen, which allows minimal protection from debris. Therefore, clean the strainer regularly.

Note: Maintain a minimum distance of one foot between

the reduction fitting for the and the fan-coil piping connections.

/2-inch diam eter line

Connecting to Factory Piping

1. The factory installed piping package ships with brackets to adequately support the piping during shipment. Remove these brackets before connecting water piping to the unit.

2. Close the piping end valves to the fully open position to prevent damage to the valve seat during brazing.

3. Remove the auxiliary drain pan, if it is in place, to prevent exposure to dripping solder or excessive temperatures.

4. Solder water piping connections to supply and return end connections. Avoid overheating factory soldered joints to prevent the possibility of leakage.

5. Insu late fan-coil piping to auxiliary drain pan connections and any piping that is not above the auxiliary drain pan.

Condensate Drain Connections

1 . De-burr the pipe end befo re making the connection to

the drain pan.

2. Connect a 7/8-inch O.D. copper pipe or tube, with a 0.02 inch wall thickness, to the auxiliary drain pan. This should be a mechanical connection that allows easy removal of the auxiliary drain pan when servicing the piping end pocket.

3. Slide the copper pipe over the drain pan nipple and tighten the collar on the pipe with a hose clamp (installer supplied).

4. Maintain a continuous drain line pitch of one inch per ten feet of drain line run to provide adequate condensate drainage. Extend the drain line straig ht from the drain pan a minimum distance of six inches before making any turns. The installer must provide proper support for the drain line to prevent undue stress on the auxiliary drain pan.

5. Install a secondary overflow drain line if necessary by punching out the overflow drain nipple on the aux iliary drain pan. Next, place a 3/8-inch inside diameter

56 UNT-SVX07E-EN

Page 57

Coil Piping and Connections

flexible plastic tube over the nipple and secure with a field supplied hose clamp.

Note: The installer is responsible for adequately

insulating field piping. See “External Insulating

Requirements,” page 58 for more information.

Condensate Overflow Detection Device

The condensate overflow detection device is an option on fan-coil units with either a Tracer ZN010, ZN510, ZN520, UC400, or the customer-supplied control interface. The float switch, mounting bracket, and coiled leads ship attached inside the piping end poc ket of the unit. Install the switch by placing the hole or slot in the bracket over the condensate overflow drain (of the auxiliary drain pan) with the switch float extending over the pan. Secure the drain pan by attaching the pan’s bracket with the factory provided clip. See Figure 26 and Figure 27.

Figure 26. Condensate float switch installed in

horizontal auxiliary drain pan

Automatic Changeover Sensor

Two-pipe changeover units with either the Tracer ZN010, ZN510, ZN520, and UC400 and CSTI controls have an automatic changeover sensor that determines heating or cooling mode based on the supp ly water temperatur e. On units with a factory piping package, the factory straps the changeover sensor to the piping supply water pipe. See

Figure 28, p. 57 and Figure 29, p. 57.

Figure 28. Attach the changeover sensor to the enter ing

water pipe a s sh own for changeover to work properly

Figure 27. Condensate float switch installed in vertical

auxiliary drain pan

Figure 29. Close-up view of the changeover sensor

If the unit does not have a factory piping package, the factory attaches the sensor and coiled lead wires to the piping side end panel. The installer should attach the sensor parallel to and in direct contact with the supply water pipe.

Note: The installer is responsible to ensure the

changeo ver sensor is installed in a location that can sense active water temperature. Otherwise, the unit may fail to sense the correct operating mode and disable temperature control.

When using field supplied three-way valves, install the changeover sensor upstream of the valve on the supply water pipe. When using field supplied two-way control valves, install the changeover sensor in a location that will detect active water temperature. The unit must always be

UNT-SVX07E-EN 57

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Coil Piping and Connections

able to sense the correct system water temperature, regardless of the control valve position.

Note: The maximum length of the automatic changeover

wire cannot exceed ten feet from the control pa nel. If the sensor extends beyond the unit chassis, use shielded conductors to eliminate radio frequency interference (RFI).

Venting the Hydronic Coil

The hydronic coil contains a vent, either manual or automatic, to release air from the unit. This vent is not sufficient for venting the water piping system in the building.

The coil air vent is on the piping side, above the coil connections on the unit. See Figure 30 and Figure 31. Perform the following steps to vent the coil af ter installing the unit.

Figure 30. Manual coil air vent with set screw

2. For units with manual air vents, back the set screw out to expel air from the unit and then re-tighten the set screw.

The automatic air vent should require no adjustment for the coil to vent. However, if the coil does not vent immediately, unscrew the outer portion of the fitting to expel air from the port.

If debris has become trapped in the vent, completely remove the outer portion of the fitting and clean.

External Insulating Requirements

Insulate and vapor seal surfaces colder than surrounding air dew-point a to prevent unplanned condensation. Trane recommends field-insulation of the following areas to prevent potential condensate problems:

• Supply and return water piping connections

• Condensate drain lines and connections

• Fresh air intake duct connections

• Discharge duct connections

• Wall boxes

Balancing Manual Circuit Setter

Figure 31. Manual coil air vent with Shrader fitting

Valve

The manual circuit setter valve is an optional end valve supplied on the return pipe of the factory piping package. The valve allows the operator to regulate water flow through the hydronic coil, balance the water flow through the unit with other units in the piping system, and serves as a shutoff or end valve. See Figure 32.

Figure 32. Manual circuit setter valve

Figure 33. Automatic circuit setter valve

1. Pressurize the building pipi ng system with water and vent any trapped air at system vents.

58 UNT-SVX07E-EN

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Coil Piping and Connections

Figure 34. Automatic circuit setter valve

Perform the following procedure to set maximum water flow through the coil:

1 . Establish water flow through the coil. Perform an open

override of the valve if the control valve is closed to the coil, either manually or by Tracer.

If the piping package has two-position, normally closed valves: Drive open the valve using a 24 V signal.

If the piping pac kage has two-positio n, normally open valves: Manually drive open the valve by removing power to the valve.

If the piping package has modulating valves: To manually drive the valve open, depress the button stem on top of the valve and push the lever located on the side of the valve to the full open position.

2. For presetting, use the appropriate valve curve shown in Figure 35, p. 59 to determine which setting is necessary to achieve the appropriate pressure drop. The “M” line is the appropriate line .

3. Carefully remove the Schrader pressure port connection caps on the manual circuit setter , since they will be at the same temperature as the pipeline.

4. Bleed all air from the hoses and meter before reading the pressure drop. Refer to the gauge operating instructions.

5. Adjust the circuit setter valve by turning the valve stem until the appropriate pressure drop is achieved.

6. After achieving the proper setting, slightly loosen the two socket head cap screws and rotate the memory stop around until it touches the back side of the indicator. Then tighten the screws to securely set the open memory position. The memory stop indicates the last set open position.

7 . If using a three-way valve: close the control valve to the

coil, with the differential pressure meter still connected. This will divert flow to the bypass side of a three-way valve.

UNT-SVX07E-EN 59

Adjust the balancing fitting to obtain the same pressure drop across the circuit setter valve as in step two when the control valve was open to the coil.

Figure 35. Manual circuit setter valve, differential

pressure vs. flow

Note: Instructions for using this chart appear on the

preceding page. For the manua l circuit setter provided with fan-coil or Force-Flo units, use the ‘M’.

NOTICE:

Coil Damage!

In all steam coil installations, the condensate return connections must be at the low point of the coil to ensure condensate flows freely from the coil at all times. Failure to do so could cause physical coil damage from water hammer, unequal thermal stresses, freeze-up and/ or corrosion.

1 . Make piping connections to the steam coil as shown in

Figure 37. Cap the unused connection.

2. The coil is already pitched within the unit to provide proper pitch to drain condensate out of the coil. V erify that the unit has been properly leveled.

3. Install a 1/2-inch, 15-degree swing check vacuum breaker in the unused condensate return tapping as close as possible to the coil.

Page 60

Coil Piping and Connections

Full size of coil connection

Steam main

Pitch down

Airflow

12 in. min.

Full size

main

Return main

Full size of steam trap connection

vacuum breaker (if desired)

steam supply

plugged

condensate return

4. Vent the vacuum breaker line to atmosphere or connect it into the return main at the disc harge side of the steam trap.

5. Pitch all steam supply and return mains down a minimum of one inch per ten feet in the direction of flow.

6. Do not dra in th e steam mains or take-off through the coils. Drain the mains ahead of the coils through a steam trap to the return line.

7. Overhead returns require one psig of pressure at the steam trap discharge for each two-feet elevation to ensure continuous condensate removal.

8. Proper steam trap selection and installation is necessary for satisfactory coil performance and service life. For installation, use the following steps:

a. Position the steam trap discharge at least 12 inc hes

below the condensate return connection. This provides sufficient hydrostatic head pressure to overcome trap losses and ensure complete condensate removal.

b. Trane recommends using flat and thermostatic

traps because of gravity drain and continuous discharge operation.

c. Use float and thermostatic traps with atmospheric

pressure gravity condensate return, with automatic controls or where the possibility of low pressure supply steam exists.

d. Always install strainers as close as possible to the

trap inlet side. Reference Figure 36 for an example of a properly piped steam coil.

Figure 36. Typical piping for steam coils

Table 22. Code of system components in piping diagram

FT Float and thermostatic steam trap BT Bucket steam trap GV Gate valve OV Automatic two-position (on-off) control valve TV Automatic three-way control valve VB Vacuum breaker CV Check valve ST Strainer AV Automatic or manual air vent

60 UNT-SVX07E-EN

Figure 37. Main steam coil connection diagram

Page 61

Installation - Zone Sensors

X13790843-01 Unit mounted zone sensor

X13790841-01 Wall-mounted sensor

X13511529-01 Wall-mounted sensor

X13790849-01 Unit-mounted sensor

X13511530-01 Wall-mounted sensor

X13651467-02

X13790842-01 Wall-mounted sensor

X13651467-02 Comm module

Zone Sensor Options

Control sensor options include both unit-mounted (factory-installed) and wall-mounted sensors. Tracer™ controller options available for the zone sensors are:

• Tracer ZN010 is a stand-alone microprocessor controller that controls fan coils and cabinet heaters.

• T racer ZN51 0 is a discrete speed controller that can be used in a stand-alone application or can communicate with a building automation system using LonTalk Communication

• T racer ZN520 is a discrete speed controller that can be used in a stand-alone application or can communicate with a building automation system using LonTalk Communication

• Tracer UC400 delivers single zone VAV control in a stand-alone operation or as part of a building

automation system using BACnet

communications

Zone sensors have an internal thermistor and operate on 24 Vac. Options with setpoint knobs are available in Fahrenheit or Celsius. See Figure 38 through Figure 47 for available options and model number references.

ZN010 Controller Options

ZN010 are standalone controllers.

Figure 40. Digit 30 = E and Digit 31 = X

Split-mounted zone sensor, unit-mounted fan mode and wall-mounted setpoint dial

ZN510, ZN520, UC400 Controller Options

ZN510, ZN520, and UC400 controllers communicate with a building automation system.

Figure 41. Digit 30 = F, G, J or K and Digit 31 = 1

Wall-mounted zone sensor

Figure 38. Digit 30 = E and Digit 31 = V

Unit-mounted zone senso r

Figure 39. Digit 30 = E and Digit 31 = W

Wall-mounted zone sensor

Comm module

Figure 42. Digit 30 = F, G, J or K and Digit 31 = 2

Wall-mounted zone sensor

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Installation - Zone Sensors

X13511527-01 Wall-mounted sensor

X13790849-01 Unit-mounted sensor

X13651467-02 Comm module

X13790844-01 Unit-mounted zone sensor

X13790886-04 Wall-mounted wired display sensor

X13790821-01 Wall-mounted wireless sensor

X13790860-02 Unit mounted receiver

X13790822-04 Wall-mounted wireless display sensor

X13790860-02 Unit mounted receiver

Figure 43. Digit 30 = F, G, J or K and Digit 31 = Y

Split-mounted zone sensor, unit-mounted fan mode and wall-mounted setpoint dial

Figure 44. Digit 30 = F, G, J or K and Digit 31 = Z

Unit-mounted zone senso r

Figure 46. Digit 30 = F, G, J or K and Digit 31 = 6

Wall-mounted wireless temperature sensor (WZS) (setpoint adjustment, no fan speed adjustment) and unit-mounted receiver

Note:1When the Wireless Communication Interface (WCI) is ordered, the

wireless receiver (X13790860-02) is replaced by the flush mount WCI X13790902-01

Figure 47. Digit 30 = F, G, J or K and Digit 31 = 7

Wall-mount ed wireless displa y sensor (WDS) and unit-mounted r eceiver

Figure 45. Digit 30 = F, G, J or K and Digit 31 = 4

Wall-mounted wired display sensor with setpoint adjustment

Note:1When the Wireless Communication Interface (WCI) is ordered, the

wireless receiver (X13790860-02) is replaced by the flush mount WCI X13790902-01

Installation Considerations

Location

Reference the wall-mounted zone sensor dimensions in

Figure 48. 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.

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Installation - Zone Sensors

0.31 in.

Typ R.07 in. (R1.9)

Typ 0.24 in.

2.9 in.

1.08 in.

0.12 in.

3.39 in.

4.68 in.

2.48 in.

0.63 in.

1.45 in.

2.62 in

Figure 48. Wall-mounted wired and wireless zone

sensor dimensions

When selecting a sensor location, avoid the following:

• Areas of direct sunlight

• Areas in the direct airstream of air diffusers

• Unheated or uncooled spaces behind the controller, such as exterior walls or unoccupied spaces have a temperature differential between the two sides.

• Areas that are close to heat sources such as sunlight, appliances, concealed pipes, fireplaces, chimneys, or other heat-generating equipment

• Drafty areas, such as near stairwells, outside doors, or unsectioned hollow walls.

• Dead spots behind doors, projection screens, or corners that do not allow free air circulation.

• Walls that are subject to high vibration

• Areas with high humidity

• High traffic areas (to reduce accidental damage or tampering)

• Metal barriers between the receiver and the sensor, such as plastered wall s with metal lathe or metal roof decks, walls with concealed pipes

• Thick, solid concrete walls between the receiver and the sensor

• Placing the sensor inside metal enclosures

Placement

Placement of the sensor is critical to proper operation (the receiver is factory-mounted on fan coil units). For most installations, barriers limit proper radio sign al strength more than distance. For best radio transmission range and reliability, mount the receiver and sensor in line of sight. Where this is not possible, try to minimize the number of barriers between the pair of devices. In ge neral, sheetroc k walls and ceiling tiles offer little restriction to the transmission range for the sensor is as follows:

• Open range: 2,500 ft (packet error rate = 2 percent)

• Usable range: 200 ft

• Typical range: 75 ft

Height Requirements

It is recommended that you mount the back plate a maximum distance of 54 inches above the floor. If a parallel approach by a person in a wheelchair is required, reduce the maximum height to 48 inches.

Note: Consult section 4.27.3 of the 2002 ADA (Americans

with Disability Act) guideline, and local building codes, for further details regarding wheelchair requirements.

Mounting Surfaces

Using the hardware pr ovided, mount the bac k plate of the sensor to a flat surface suc h as sheetroc k or plaster , or an electrical junction box. The sensor must be mounted plumb for accurate temperature control and to ensure proper air movement through the sensor.

• If mounting onto sheetrock or plaster, use the plastic threaded anchors (pre-drilling holes is not usually necessary) and the two M3.5 x 20 mm mounting screws.

• For mounting onto an electrical junction box, use the two 6-32 x 3/4 in. screws.

Installation

Fan Mode Switch

The fan mode switch can be unit mounted or wall mounted. It includes a knob to indi cate OFF/HI /MED/L ow. A wall-mounted fan mode switch ships loose inside the unit accessory bag. Follow the steps below to install the fan mode switch.

Items needed:

• 2 x 4 electrical junction box

1. Remove the brown wire if not us ing a field-supplied damper.

2. Remove the terminals, cut and strip wires as required for installation.

3. Level and position a 2 x 4 electrical junction box.

UNT-SVX07E-EN 63

Page 64

Installation - Zone Sensors

Security screw

4. Follow the instructions given in “Interconnection

Wiring,” page 79 and rout e the wires as shown in the

wiring diagram. Refer to the typical wiring diagram or to the unit specific diagram on the unit.

5. Position the fan mode switch over the junction box with the two screws supplied.

Wired Zone Sensor

Refer to the unit wiring schematic for specific wiring details and point connections.

1 . Note the position of the setpoint adjustment knob and

gently pry the adjustment knob from the cover using the blade of a small screwdriver.

2. Insert the screwdriver blade behind the cover at the top of the module and carefully pry the cover away from the base.

3. To mount the sensor back plate: (see Figure 49). a. Hold the back plate against the mounting surface

and mark the screw locations.

b. Secure the back plate against the mounting surface

using included hardware.

4. To install the zone sensor module to a standard junction box:

a. Level and install a 2 x 4-in. junction box (installer

supplied) vertically on the wall.

b. Pull the control wires through the cutout. Attac h the

module to the wall using the screws provided.

5. Strip the insulation on the interconnection wires back

0.25-inch and connect to TB1 (for wired sensors).

6. Screw down the termin al blocks (for wired sensors).

7. To replace the cover: a. Hook the cover over the top of the back plate. Apply

light pressure to the bottom of the cover until it snaps in place.

b. Install the security screw into the bottom of the

cover if desired (see Figure ).

Figure 49. Mounting sensor base plate

Figure 50. Security screw on bottom of sensor

64 UNT-SVX07E-EN

Wireless Zone Sensors

1 . Note the position of the setpoint adjustment knob and

gently pry the adjustment knob from the cover using the blade of a small screwdriver.

2. Insert the screwdriver blade behind the cover at the top of the module and carefully pry the cover away from the base.

3. To mount the sensor back plate: (see Figure 49)

Page 65

a. Hold the back plate against the mounting surface

B1 +

WIRELESS INSTALL

ADDRESS

STATUS

BATTERY

LED5

SIGNAL

LED3

ED2

LED1

Pb-FREE

STATUS

LED4

Sensor

Set address before removing insulation strip.

and mark the screw locations.

b. Secure the back plate against the mounting surface

using included hardware.

4. To replace the cover: a. Hook the cover over the top of the back plate. Apply

light pressure to the bottom of the cover until it snaps in place.

b. Install the security screw into the bottom of the

cover if desired (see Figure ).

Note: For more detailed information for wireless sensors,

please see BAS-SVX04E-EN

Receivers

Receivers ship installed on the unit. To remove the receiver, press in the retention tabs on the underside of the receiver enclosure (see Figure 51) and push upward.

Figure 51. Retention tabs on underside of receiver

enclosure

Installation - Zone Sensors

Figure 52. Set address before removing insulation strip

from the sensor.

Zone Sensor Settings

Address Setting

The process of establishing communication between a receiver and sensor is referred to as association. The following limitations apply:

• Each associated receiver/sensor set that

• It is not possible to associate more than one sensor to

• To associate a receiver and sensor, the two devices

Important: Set the addresses before applying power to

communicates within the reception range of the wireless system must have a unique address.

a receiver, nor is it possible to associate more than one receiver to a sensor.

must have their rotary address switches set to the same address.

the receiver and before removing the insulation strip (Figure 53) from the sensor.

To set the receiver and sensor addresses: 1 . Using a small screwdriver, set the three rotary address

switches (locations S1, S2, S3) on the receiver to an address between 001 and 999 (see Figure 53). You do not have to remove the covers to access the rotary address switches.

Note: Do not use 000 as an address. An address of

000 returns the receiver outputs to their factory defaults (zone temperature and setpoint outputs: 72.5°F, removes all association knowledge, and prevents association with a sensor.

UNT-SVX07E-EN 65

Page 66

Installation - Zone Sensors

GND

R77

C35

C33

LED4

LED1

LED2

LED3

LED5

C34

COMM -

24VAC/DC

SETPOINT

HEATING SET

SIGNAL

POWER

FAN/SYSTEM

ZONE

COMM +

INSTALL

WIRELESS

GND

ADDRESS

Receiver

Sec.

LED3

Figure 53. Set the rotary address switches on the

receiver

2. Set the three rotary address switches (locations S1, S2, S3) on the sensor to the same address as the receiver (see Figure 52).

Note: Do not use 000 as an address. An address of

000 removes all association knowledge, reverts the sensor to a low-power hibe rn a t io n mod e, and sends a disassociation request to the receiver.

3. Record the address and location of the receiver and sensor pair.

Figure 54. Receiver conducts 20 second channel scan

After the channel scan is finished, LED3 begins blinking (one-blink pattern) to show that the receiver is ready to be associated with a sensor. (See Figure 55)

Figure 55. LED3 blinks after c ha nnel scan to show

receiver is ready

Observing Receiver for Readiness

After initial power up, the receiver conducts a channel scan for 20 seconds. See Figure 54). During this time, the receiver selects from 16 available channels the clearest channel on whic h to operate. LED1, LED2, and LED3 flash rapidly in succession (round-robin style) while the c hannel scan is in progress.

Important: Do not attempt association (leave the

insulation strip in place) until the channel scan is finished.

66 UNT-SVX07E-EN

Page 67

Installation - Zone Sensors

LED1 LED2 LED3

LED5

Test button

Push firmly, then release

Test button

Push firmly,

Associating Sensor to Receiver

To associate the sensor to the receiver: 1 . Remove the sensor cover by firmly pressing the thumb

tab at the bottom of the cover and pulling the cover away from the back plate.

2. Verify that the sensor is set to the same address as the receiver it is to be associated with.

3. Power the sensor by removing the insulation strip from between the two batteries. See Figure 56.

Figure 56. Power sensor by removing insulation strip

Note: The LEDs will turn Off after 5 seconds to

conserve battery strength.

Figure 57. Wireless Zone Sensor (WZS) with LED lights

to test for battery strength

For model WDS, determine the signal strength and battery status by viewing the symbols on the sensor display (see Figure 58 for model WDS sensors).

3. Record the results in your com missioning statement.

Figure 58. Wireless Display Sensor (WDS) showing

battery strength

Association is automatically initiated between the sensor and the receiver. When LED3 on the receiver stops blinking, association has been established.

If the first association attempt is unsuccessful, the sensor automatically re-attempts association with the receiver every 10 minutes.

Note: An associated sensor that has lost communication

with the receiver will transmit an association request every 50 minute s . You can manually initiate association (see “Manual Association,”

page 134”).

Testing Signal Strength and Battery

To verify that the association process was successful and that the batteries have adequate charge:

1 . Firmly press and release the Test button on the bot tom

of the sensor as illustrated in Figure 57.

2. For model WZS, view LED1, LED2, and LE D3 to determine the signal strength. View LED5 to determine the battery status (see Figure 57 for model WZS sensors).

UNT-SVX07E-EN 67

then release

Page 68

Installation - Zone Sensors

Sensor Operations

Temporary Occupancy (Timed Override)

Temporary occupancy (timed override) is available on model WDS. Temporary occupancy is selected for afterbusiness-hours adjustment of temperature setting, fan settings, or heat/cool settings, when the sys tem ha s changed to unoccupied mode. System control will rever t to unoccupied after a pre-determined time period.

Note: Not all systems support the occupancy function.

To request and cancel temporary occupancy on a model WDS sensor, see “Requesting Temporary Occupancy,”

page 73.

End-of-Range Temperature Values

Receiver: The end-of-range temperature limits of the

receiver for all models are 32°F to 122°F. The receiver cannot replicate temperature values outside this range. If the sensor transmits a temperature value to the receiver that is out of the receiver replication range, the recei ver will “freeze” the output at the end-of-range values. This value will remain froz en until the transmitted temperature moves to between the end-of-range temperature limits.

Sensor: The end-of-range temperature setpoint limits for the WDS is 50°Fto 89.6°F.

Receiver Power-up Sequence

When power is applied to the receiver, one of the following sequences occurs. The sequence is dependent on the address setting and the association status of the receiver.

Address set to 000 and receiver is not associated with a sensor

• LED5 is constantly On, indicating power is app lied and the receiver is functional.

• All models: Zone temperature and cooling setpoint default to 72.5°F. WDS only: The heating setpoint defaults to 7 0.5°F and the fan/system output will be 2230 Ω (see “Failure and

Default Modes,” page 135).

• Status LED3 will display a 2-blink pattern diagnostic (Table 45, page 118).

Address set fr om 00 1 to 999 and r eceiver is not associated with a sensor

• LED5 is constantly On, indicating power is app lied and the receiver is functional.

• All models: Zone temperature and cooling setpoint default to 72.5°F. WDS only: The heating setpoint defaults to 7 0.5°F and the fan/system output will be 2230 Ω (see “Failure and

Default Modes,” page 135).

• The receiver conducts an energy scan for 20 seconds to determine the clearest channel on which to operate.

• LED3 flashes On every 2 seconds when it is ready to accept a sensor association request. When an association request is made by a sensor, the receiver instructs the sensor on which power level to operate. Then the receiver and sensor begin operation at the appropriate channel and power level (see “Observing

Receiver for Readiness ,” page 66).

Address set from 001 to 999 (and not changed since most recent power-up) and receiver is associated with a sensor

• LED5 is constantly On, indicating power is applied and the receiver is functional.

• Zone temperature and setpoint default to 72.5°F. WDS only: Heating setpoint defaults to 70.5°F, Fan = Auto, System = Off.

• The receiver waits for a broadcast transmission from its associated sensor. When a transmission is received, the receiver positions its zone temperature and setpoint outputs appropriately.

• If the receiver does not receive a communicated signal from its associated sensor within 35 minutes, zone temperature and setpoint outputs fail, generating a unit controller alarm (see “Failure and Default Modes,”

page 135).

Note: Once a receiver communicates to a WZS sensor,

the receiver disables (opens) its zone setpoint output indefinitely.

Transmission Variables

Sensor transmission time variables are as follows:

• The maximum time between sensor temper ature transmissions is 15 minutes.

• The minimum time between sensor temperatu re transmissions is 30 seconds.

• The minimum time for transmitting temperature setpoint changes is 10 seconds.

Note: If a sensor transmits a message to the receiver and

the receiver does not reply, the sensor will retransmit the message to the receiver every 30 seconds until communication to the receiver is reestablished.

Sensor temperature time variables are as follows:

• The minimum change in zone temperature required to force a sensor transmission is:

– 0.2°F when the temperature range is between 60°F

and 80°F

– 0.5°F when the temperature range is between 32°F

and 60°F or between 80°F and 122°F

• The minimum change in temperature setpoint required to force a sensor transmission is: 0.1°C for a model WDS sensor

68 UNT-SVX07E-EN

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Installation - Zone Sensors

Wireless Sensor Specifications

Table 23. Wireless sensor specifications

Component Type

Sensor operating temperature 32°F to 122°F Receiver operating temperature -40°F to 158°F Storage temperature -40°F to 185°F Storage and operating humidity range 5% to 95%, non-condensing Accuracy 0.5°F over a range of 55ºF to 85°F Resolution 0.125°F over a range of 60°F to 80°F 0.25°F when outside this range Setpoint functional range (WDS only) 50°F to 89.6°F Receiver voltage 24 V nominal ac/dc ±10% Receiver power consumption <1 VA Housing Polycarbonate/ABS blend, UV protected, UL 94-5VA flammability rating, suitable for application in a

Mounting 3.24 in (8.26 cm) for 2 mounting screws (supplied) Sensor battery (2) AA, 1.5 V, 2800 mAh, lithium, 5-year life, UL listed

(a)

Range

Output power 100 mW Radio frequency 2.4 GHz (IEEE Std 802.15.4-2003 compliant)

Radio channels 16 Address range 000 to 999 Minimum time between transmissions 30 seconds Maximum time between transmissions 15 minutes

(a) Range values are estimated transmission distances for satisfactory operation. Actual distance is job specific and must be determined during site eval-

uation.

plenum

Open range: 2,500 ft (762 m) (packet error rate = 2 percent) Usable: 200 ft (61 m) Typical: 75 ft (23 m)

(2405 to 2480 MHz, 5 MHz spacing)

Agency Compliance

Table 24. Agency compliance information for wireless sensors

Agency Compliance

United States compliance (all models)

Canada compliance (all models)

IEEE compliance for radio frequency range (all models)

UL listed: UL 94-5VA Flammability rating UL 916: Energy management equipment FCC CFR47, Section 15.247 & Subpart E Digital Modulation Transmission with no SAR (FCC Identification TFP-

13651127) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may cause undesired operation.

Warning: Changes or modifications not expressly approved by the party responsible for compli ance could void the user’s authority to operate the equipment.

20 cm separation distance: To comply with FCC’s RF exposure limits for general population/uncontrolled exposure, the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must

not be co-located or operating in conjunction with any other antenna or transmitter. CSA22.2 No. 205-M1983 Signal Equipment Industry Canada (Certification no: IC: 6178A-13651127) Industry Canada statement: the term “IC” before the certification/registration number signifies only that the Industry Canada technical specifications were met. Section 14 of RSS-210: The installer of this radio equipment must ensure that the antenna is located or pointed such that it does not emit RF field in excess of Health Canada limits for the general population. IEEE 802.15.4-2003, IEEE Standard for Information Technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements, Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low Rate Wireless Personal Area Networks (LR-WPANs)

UNT-SVX07E-EN 69

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Installation - Zone Sensors

Configuration button

Wrench

Center button

Wireless Display Sensor (WDS)

Configuration Procedure

Note: Sensors shipped with the fan coil are pre-

configured for three speeds.

The configuration of the sensor determines which system features can be accessed and changes can be made by the tenant (for example, changes to cooling/heating mode, setpoint, or fan speed. Verify system and associated unit features before configuring the sensor.

The building owner or operator may choose to limit tenant access to certain features. This can be done through configuration. Or, if a sensor is configured to mat ch all control capabilities of the building automation system, the locking feature can be used to restrict the tenant from making changes.

To configure settings on the wireless display sensor (WDS), follow this procedure in the order presented.

1. Press the configuration button for three seconds.

Figure 59. Configuration button

Figure 60. Wrench is shown in configuration mode

2. Press the center button on the keypad to begin the configuration process.

Figure 61. Center button of keypad

The display will change to configuration mode. When the sensor is in configuration mode, a wrench symbol appears on the display and the menus are separated by lines, as shown in Figure 60.

3. Configure the sensor options in the order shown in the table.

• Press or to scroll to the next selection (as

illustrated).

• Press or to move to the next menu (as

illustrated in Table 25).

4. Review the display to ensure that you have selected the correct configuration.

5. To return the display to operating mode, press the configuration button (see Step 1).

Note: The sensor will revert to operating mode if no

buttons are pressed for 10 minutes.

70 UNT-SVX07E-EN

Page 71

Table 25. Configuration options for wireless display sensors

. .

setpoint

Single

setpoint

No system

options enabled

Auto/Off/Low

Med/High

Auto/Off/ Low/High

Auto/Off

Off/High (On)

Off/Low/High Off/Low/

Med/High

No fan options

enabled

Occupancy

Temperature Setpoint

Arrow indicates setpoint display

Setting Configuration Options

Temperature

• Choose Fahrenheit or Celsius

• Choose the degree resolution (whole degrees, half degrees, or tenths of degrees).

Setpoint

System

Installation - Zone Sensors

Fan

Note: Not all fan options are available

for all systems.

Occupancy (timed override)

enabled

Displaying Setpoint or Temperature

You can configure the sensor to display either the temperature (default) or setpoint. To select either option:

1. Verify that the sensor is in operating mode and at the

home screen.

2. Press the up and down arrows for 3 seconds. The arrow

indicates setpoint display, as shown in Figure 62.

disabled

Figure 62. Displaying setpoint or temperature

UNT-SVX07E-EN 71

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Installation - Zone Sensors

Setpoint

Fan Menu

Test symbols

(appear when Test button is pushed)

Occupancy indicator/ Error code

Test button

Keypad

Temperature

Fan settings

Locking or Unlocking Settings

Y ou can loc k or unloc k the setpoint, system, or fan set ting to prevent changes. To lock or unlock a setting:

1. Verify that the sensor is in operating mode and at the

home screen.

2. Choose a setting to lock or unlock:

• Select the setpoint by pressing the up or down ar row .

• From the system menu press the down arrow to select

the fan menu. Use the left or right arrow to c hoose the setting.

3. Press the left and right arrows for 4 seconds.

Figure 63. Locking and unlocking settings

Figure 64. Wireless display sensor (model WDS) in

operating mode

Note: If you try to access a feature that is locked, the

locked symbol will appear on the display . If you press a keypad button to try change a locked setting, the locked symbol will flash.

–

WDS Operating Mode

This section describes how to operate the wireless display sensor (WDS). Figure 64 shows an example of a WDS that has been configured and is in operating mode.

Changing Room Temperature

This symbol shows the current room

temperature, or your setpoint selection while you are making an adjustment.

When you select a setpoint, this symbol appears.

1. To increase the room temperature, press .

To decrease the room temperature, press .

2. To confirm, press or wait 5 seconds. The display will return to the home screen.

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Installation - Zone Sensors

Fan Menu

Changing Heating/Cooling Settings

(does not apply to all systems)

Some systems allow you to select both heating and cooling room temperature settings. If your system has this option, this symbol appears when you adjust the temperature setting.

When you adjust the cooling setting, the top arrow and snowflake flash.

When you adjust the heating setting, the bottom arrow and flame flash.

1. Press or to select the heating/ cooling setting.

2. If in cooling mode, press

to change to heating mode. If in heating mode, press to change to cooling mode.

3. Press or to select the heating/ cooling setting.

4. To confirm, press or wait 5 seconds. The home screen will appear.

Changing Fan Settings

Indicates that the fan will operate as needed to reach the selected temperature.

Indicates that the fan setting is On. The number of arrows indicates fan speed (3: high, 2: medium, 1: low). The example shown indicates a fan on high speed. Not all systems offer all three speeds.

Indicates that the fan setting is Off.

1. From the home screen, activate the fan setting menu by pressing and then .

2. Press or to choose the desired fan setting.

3. When the symbol for the desired setting appears, confirm your choice by

• Pressing (the

home screen will appear), or

• Pressing or

(the next menu

will appear), or

• Waiting five seconds.

Requesting Temporary Occupancy

Select to request occupancy

Select to cancel occupancy

• If you need heating or cooling after normal business hours, you can “request” temporary occupancy by pressing and holding it for 2 seconds. The occupied symbo l remains on the screen and the unoccupied symbol disappears. After 30 seconds, the unoccupied symbol will re-appear.

• To cancel temporary occupancy, press and hold for 2 seconds. The unoccupied symbol will remain on the screen and the occupied symbol will disappear. Af ter 30seconds, the occupied symbol will re-appear.

Error Codes

Indicates an error code

If an error code (E0–E7) is displayed, technical assistance may be required.

Lock Symbol

Indicates that a setting is locked

The lock symbol appears if you try to adjust a setting that cannot be changed.

Testing Signal Strength

Indicates excellent signal strength

Indicates satisfacto ry signal strength

Press the Test button to display the signal strength symbols.

Indicate s poor signal strength

Testing Battery Status

Indicates full battery power

Indicates 50 percent of battery life left.

Press the T est button to display the bat tery status symbols. Use only UL-listed non-rechargeable 1.5 V lithium AA batteries (Trane p/n X13770035010 or equivalent).

Indicates 25 percent of battery life left. Replace batteries. Flashing symbol indicates that approximately 14 days of operation remain.

UNT-SVX07E-EN 73

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Installation - Controllers

Tracer ZN510 and ZN520 Controllers

Trace ZN510 and ZN520 controllers are LonTalk® devices that interface with the Trane Tracer Summit building management system. Reference the unit wiring diagram or submittals.

Ground shields at each T racer ZN510 and ZN520, taping the opposite end of each shield to prevent any connection between the shield and anther ground.

Note: For more detailed information, refer to:

• CNT-SVX04A-EN Tracer ZN.520 Unit Controller: Installation, Operation and Programming Guide for the communication wiring diagram

Note: For Wireless Communication Interface (WCI) see

the following reference documents:

• BAS-SVX40A-EN - Wireless Comm Installation, Operation and Maintenance manual

• BAS-SVX55A-EN - Wireless Comm Network Design Best Practices Guide

Communication Wire Specifications

Communication wire must conform to the following specification:

• Shielded twisted pair 18 AWG

• Capacitance 23 (21–25) picofarads (pF) per foot

• Listing/Rating—300 V 150C NEC 725-2 (b) Class 2 Type CL2P

• Trane Part No. 400-20-28 or equivalent, available through T rane BAS Buyi ng Group Accessories catalog.

Note: Communication link wiring is a shielded, twisted

pair of wire and must comply with applicable electrical codes.

Controller communication-link wiring must be low capacitance, 18-gage, shielded, twisted pair with stranded, tinned-copper conductors. For daisy c hain configurations, limit the wire run length to 5,000 ft. Truck and branch configurations are significantly shorter. LonTalk wire length limitations can be extended through the use of a link repeater.

General Wiring Guidelines

Follow these general guidelines when installing communication wiring on units with a Tracer ZN510 or ZN520 controller:

• Maintain a maximum 5000 ft. aggregate run.

• Install all communication wiring in accordance with the NEC and all local codes.

• Solder the conductors and insulate (tape) the joint sufficiently when splicing communication wire. Do not use wire nuts to make the splice.

• Do not pass communication wiring between buildin gs because the unit will assume different ground potentials.

• Do not run power in the same conduit or wire bu ndle with communication link wiring.

Note: You do not need to observe polarity for LonTalk

communication links.

Recommended Wiring Practices

The following guidelines should be followed while installing communication wire.

• LonTalk is not polarity sensitive. Trane recommends that the installer keep polarity consistent throughout the site.

• Only strip away two inches maximum of the outer conductor of shielded cable.

• Make sure that the 24 Vac power supplies are consistent in how they are grounded. Avoid sharing 24 Vac between LonTalk UCMs.

• Avoid over-tightening cable ties and other forms of cable wraps. A tight tie or wrap could damage the wires inside the cable.

• Do not run LonTalk cable alongside or in the same conduit as 24 Vac power.

• In an open plenum, avoid lighting ballasts, especially those using 277 Vac.

• Do not use a trunk and branch configuration, if possible. T runk and br anch co nfigurations shorte n the distance cable can be run.

Device Addressing

LonTalk devices are given a unique address by the manufacturer. This address is called a Neuron ID. Each T racer ZN510 and ZN520 controller can be identified by its unique Neuron ID, which is printed on a label on the controller’s logic board. The Neuron ID is also displayed when communication is established using Tracer Summit or Rover service tool. The Neuron ID format is 00-01-64-1C-2B-00.

74 UNT-SVX07E-EN

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Installation - Controllers

VAC

XFRM

BI4

AO1

AO2

1UI2

P1P

CNCNO

BO3

CNCNO

BO2

CNCNO

BO1

RELAYS

ADDRESS

TRIAC SUPPLY TRIACS

BO9BO8BO7BO6BO5BO4

ABB

LINK

IMC

SERVI

SERVICE TOOL

CONNECT AC POWER TO THE TRAIC SUPPLY TO POWER THE TRIACS

BO1 BO2 BO3 BO4 BO5 BO6 BO7 BO8 BO9

x10

x100

Tracer UC400 Controller

This section provides information about wi ring the UC400 controller.

Note: For more detailed information, refer to:

• BAS-SVX20C-EN Tracer UC400 Programmable Controller Installation, Operation, and Maintenance manual

Note: For Wireless Communication Interface (WCI) see

the following reference documents:

• BAS-SVX40A-EN - Wireless Comm Installation, Operation and Maintenance manual

• BAS-SVX55A-EN - Wireless Comm Network Design Best Practices Guide

Communication Wire Specifications

All wiring must comply with the National Electrical Code (NEC™) and local electrical codes.

Field-supplied BACnet MS/TP l ink wiring must be installed in compliance with NEC and local codes. The wire must be low-capacitance, 18-gauge, stranded, tinned-copper, shielded, twisted-pair.

Note: For more details, refer to Wiring Guide: Unit

Controller Wiring for the Tracer SC™ System Controller (BAS-SVN03D-EN, or the most recent

revision).

General Wiring Guidelines

Figure 65. Connecting wires to terminal

Setting the Address

The rotary address dials on the UC400 controller serve one or two purposes depending upon the netwo rk: they are always used for the MAC Address, which is sometimes all or part of the BACnet Device ID (See Figure 66).

Use a 1/8 inch (3.2 mm) flathead screwdriver to set rotary address dials. Dials rotate in either direction.

Figure 66. Setting rotary address dials

MAC Address

The MAC Address is required by the RS-485 communication protocol on which BACnet operates. A UC400 controller can use a MAC Address from 001 to 120.

Important: Each device on the link must have a unique

MAC Address/Device ID. The controller rotary addresses should be sequentially set, with no gaps in the numbering, starting with 001 on each link (for example 001, 002, 003, 004 and so on). A duplicate address or a 000 address setting will interrupt communications and cause the Tracer SC device installation process to fail.

T o connect wires to the UC400 controller or the expansion modules:

1 . Strip the wires to expose 0.28 inch (7 mm) of bare wire.

2. Insert the wire into a terminal connector.

3. Tighten the terminal screw to 0.5 to 0.6 N-m (71 to 85 ozf-in or 4.4 to 5.3 lbf-in.).

4. Tug on the wires after tightening the screws to ensure all wires are secure as shown on the right.

UNT-SVX07E-EN 75

BACnet Device ID

The BACnet Device ID is required by the BACnet network. Each device must have a unique number from 001 to

4094302. See Figure 67.

BACnet networks without a Tracer SC system controller

On BACnet networks without a Tracer SC system controller, the Device ID can be assigned one of two ways:

• It can be the same number as the MAC Address, determined by the rotary address dials on the UC400 controller. For example, if the rotary address dials are set to 042, both the MAC Address and the BACnet Device ID are 042.

• It can be soft set using the Tracer TU service tool. If the BACnet Device ID is set using the Tracer TU service tool, the rotary address dials only affect the MAC Address, they do not affect the BACnet Device ID.

Page 76

Installation - Controllers

ADDRESS

x10

x100

001 0201

ADDRESS

x10

x100

ADDRESS

x10

x100

001 0201

ADDRESS

x10

x100

Link 1

Link 2

BACnet device

ID for this

UC400

= 0012001

Last three digits determined

by rotary addesss dials on

the UC400 controller

First three digits determined

by rotary address dials on

Tracer SC system controller

Fourth digit determined

by link number to which the

UC400 controller is attached

UC400

BI LINK IMC

+ VDC

AIAI AI AI

P P

LINK IM

SERVI

SERVICE TOOL

BI LINK IMC

+ VDC

AIAI AI AI

P P

LINK IM

SERVI

SERVICE TOOL

BI LINK IMC

+ VDC

AIAI AI AI

P P

LINK IM

SERVI

SERVICE TOOL

BI LINK IMC

+ VDC

AIAI AI AI

P P

LINK IM

SERVI

SERVICE TOOL

BI LINK IMC

+ VDC

AIAI AI AI

P P

LINK IM

SERVI

SERVICE TOOL

Tracer SC UC 400 UC 400 UC 400

Zone

Sensor

Zone

Sensor

Zone

Sensor

Trane BACnet

terminator

Zone sensor communications jack wiring

BACnet networks with a Tracer SC system controller

On BACnet networks with a Tracer SC system controller, the Device ID for the UC400 controller is always soft set by the system controller using the following scheme illustrated below.

Note: The BACnet Device ID is displayed as the Software

Device ID on the Tracer TU Controller Settings page in the Protocol group.

Figure 68 shows an example of BACnet link wiring with

multiple UC400 controllers.

Figure 67. BACnet device ID shown in controller

settings

Power Supply

Please read all of the warnings, cautions, and notices below before proceeding with this section.

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

CAUTION

Personal Injury and Equipment Damage!

After installation, make sur e to check that the 24 Vac transformer is grounded through the controller. Failure to check could result in personal injury and/or damage to equipment. Measure the voltage between chassis ground and any ground terminal on the UC400 controller. Expected result: Vac £ 4.0 V

NOTICE:

Avoid Equipment Damage!

Sharing 24 Vac power between controllers could cause equipment damage.

Figure 68. Example of BACnet link wiring with multiple

UC400 controllers

76 UNT-SVX07E-EN

A separate transformer is recommended for e ach UC400 controller. The line input to the transformer must be equipped with a circuit breaker sized to handle the maximum transformer line current.

If a single transformer is shared by multiple UC400 controllers:

• The transformer must have sufficient capacity.

• Polarity must be maintained for every UC400 controller powered by the transformer.

Important: If the polarity is inadvertently reversed

between two controllers powered by the same transformer, a difference of 24V ac will occur between the grounds of each controller, which can result in:

• Partial or full loss of communication on the entire BACnet MS/TP link

• Improper function of the UC400 controller outputs

• Damage to the transformer or a blown transformer fuse

Transformer Recommendations

A 24Va c power supply must be used for prop er operation of the binary inputs, which requires 24Vac detection. In addition, the spare 24Vac outputs may be used to power relays and TRIACS.

Page 77

Installation - Controllers

VAC

XFRM

VAC

BI1BI2BI

LINK

IMC

VDC

BI4

AO1

AO2

1UI2

AI3AI2AI

P1P

CNCNO

BO3

CNCNO

BO2

CNCNO

BO1

RELAYS

ADDRESS

TRIAC SUPPLY TRIACS

BO9BO8BO7BO6BO5BO4

ABB

LINK

IMC

SERVI

SERVICE TOOL

CONNECT AC POWER TO THE TRAIC SUPPLY TO POWER THE TRIACS

BO1 BO2 BO3 BO4 BO5 BO6 BO7 BO8 BO9

24Vac transformer

Alternate ground method

• AC transformer requirements: UL listed, Class 2 power transformer, 24Vac ±15%, device max load 24VA. The transformer must be sized to provide adequate power to the controller (12VA) and outputs (maximum 12VA per binary output).

• CE-compliant installations: The transformer must be CE marked and SELV compliant per IEC standards.

Wiring Requirements

T o ensure proper operation of the UC400 controller, install the power supply circuit in accordance with the following guidelines:

• A dedicated power circuit disconnect switch must be near the controller, easily accessible by the operator, and marked as the disconnecting device for the controller.

• 18 AWG (0.823 mm

) copper wire is recommended for

the circuit between the transformer and the controller.

Important: The controller must receive AC power from

a dedicated power circuit; failure to comply may cause the controller to malfunction. DO NOT run AC power wires in the same wire bundle with input/output wires; failure to comply may cause the controller to malfunction due to electrical noise.

Connecting Wires

Figure 69. Grounding the controller

2. Conn ect th e 24Vac secondary wires from the transformer to the 24Vac and terminals on the UC400 controller (refer to the illustration below).

3. Do one of the following to ensure the controller is adequately grounded:

• Connect a grounding pigtail at some point along the

secondary wire that runs between the controller terminal and the transformer.

• Ground one of the terminals on the controller to

the enclosure (if the enclosure is adequately grounded) or to an alternate earth ground.

Note: A pigtail connection may be necessary between

earth ground and/or e nclosure ground if the device is not grounded through one leg of the transformer

wiring.

Power ON Check

To perform a Power ON check: 1 . Verify that the 24Vac connector and the chassis ground

are properly wired.

2. Remove the lockout/tagout from the line voltage power to the electrical cabinet.

3. Energize the transformer to apply power to the UC400 controller.

4. Observe the UC400 controller when power is applied to verify the power check sequence as follows:

a. The power LED lights red for 1 second b. The power LED lights green

• If the sequence above is completed as described,

the controller is properly booted and ready for the application code.

If the power LED flashes red, a fault condition exists.

To connect the wires:

1. Disconnect power to the transformer.

UNT-SVX07E-EN 77

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Installation - Controllers

Wireless Comm Interface (WCI)

Figure 70. WCI unit-mounted receiver

The Wireless Comm Interface (WCI) enables wireless communication between system controls, unit controls, and wireless sensors for the new ge neration of Trane control products.The WCI replaces the need for communication wire in all system applications.

Note:

• BAS-SVX40A-EN - Wireless Comm Installation,

• BAS-SVX55A-EN - Wireless Comm Network Design

Quantity of WCIs per Network

Each Trane wireless network can h ave a total of 31 WCIs (30 member WCIs plus one coordinator WCI). Each network requires one WCI to function as network coordinator.

Quantity of Networks per Tracer SC

A Tracer SC can support up to eight wireless networks.

Automati c Network Formation

When a WCI is connected to a T racer SC, it is auto-assigned as the coordinator.To enable the coordinator, Tracer SC must be configured for wireless communication.The coordinator WCI opens the network to allow all WCIs having matching addresses to automatically join the network. If no T racer SC is present, a centrally located WCI must be designated to act as the coordinator.You can manually set the coordinator WCI so all WCIs having matching addresses automatically join the network.

For more detailed information, refer to:

Operation and Maintenance manual

Best Practices Guide

Voltage: 24 Vac/Vdc nominal ± 10 percent. If using 24 Va c, polarity must be maintained.

Receiver power consumption: <2.5 VA Housing material: Polycarbonate/ABS (suitable for

plenum mounting), UV protected, UL 94: 5VA flammability rating

Mounting: Snaps into sheet metal opening. Range: Open range: 2,500 ft (762 m) with packet error rate

of 2 percent. Indoor: Typical range is 200 ft (61 mm); actual range is

dependent on the environment. See BAS-SVX55-EN for more detail.

Note: Range values are estimated transmission distances

for satisfactory operation. Actual distance is job specific and must be determined during site evaluation. Placement of WCI is critical to proper system operation. In most general office space installations, distance is not the limiting factor for proper signal quality. Signal quality is affected by walls, barriers, and general clutter. For more information os available at www.trane.com.

Output power: North America: 100 mW Radio frequency: 2.4 GHz (IEEE Std 802.15.4-2003

compliant) (2405–2480 MHz, 5 MHz spacing) Radio channels: 16 Address range: Group 0–8, Network 1–9

Mounting

Fits a standard 2 in. by 4 in. junction box (vertical mount only). Mounting holes are spaced 3.2 in. (83 mm) apart on vertical center line. Includes mounting screws for junction box or wall anchors for sheet-rock walls. Overall dimensions: 2.9 in. (74 mm) by 4.7 in. (119 mm)

Wireless protocol

ZigBee PRO—ZigBee Building Automation Pr ofile, ANSI/ ASHRAE Standard 135-2008 Addendum q (BACnet™/ ZigBee)

Wireless Zone Sensors

The WCI also communicates with Trane wireless zone sensors, eliminating the need for analog receivers.

Wired Zone Sensors

Systems using WCI can also use wired zone sensors.

Specifications

Operating Temperature: -40 to 158ºF (-40 to 70ºC) Storage temperature: -40 to 185ºF (-40 to 85°C) Storage and operating humidity range: 5 percent to 95

percent relative humidity (RH), non-condensing

78 UNT-SVX07E-EN

Page 79

Installation - Electrical

Note: Any modifications, additions or changes to the

control box could void the factory war ranty and UL certification. Such modification, additions or changes will become the responsibly of the modifying contractor.

Unit Wiring Diagrams

Specific unit wiring diagrams, based on unit options ordered, are provided inside each unit and can be easily removed for reference. Use these diagrams for connections or trouble analysis. Wiring diagrams are attach ed on the inside of the front panel of vertical cabinet and recessed models and on the fan and motor panel of vertical concealed and all horizontal models. For typical wiring information, see “Wiring Diagrams,” page 154.

Note: Any modifications, additions or changes to the

control box could void the factory war ranty and UL certification. Such modification, additions or changes will become the responsibly of the modifying contractor.

Supply Power Wiring

WARNING

Hazardous Voltage w/Capacitors!

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

Refer to the unit nameplate to obtain the minimum circuit ampacity (MCA) and maximum overcurrent protection (MOP) to properly size field supply wiring and fuses or circuit breakers.

Refer to the unit operating voltage listed on the unit wiring schematic, submittal, or nameplate. R eference the wiring schematic for specific wiring connections.

NOTICE:

Use Copper Conductors Only!

Unit terminals are not designed to accept other types of conductors. Failure to use copper conductors may result in equipment damage.

Note: All field wiring should conform to NEC and all

applicable state and local code requirements. The control panel box is always on the end opposite the piping connections. Access the control box by removing the two screws that secure the front cover. This will allow the panel to be removed, to provide access to the electrical components.

WARNING

Hazardous Electrical Shorts!

Insulate all power wire from sheet metal ground. Failure to do so may cause electrical shorts that could result in death or serious injury.

If the unit does not have a disconnect switch, the power leads and capped ground wire are inside the control panel.

If the unit has a disconnect switch, the power leads are wired to the disconnect switch on the control panel.

Electrical Grounding Restrictions

All sensor and input circuits are normally at or near ground (common) potential. When wiring sens ors and other input devices to the Tracer controller, avoid creating ground loops with grounded conductors external to the unit control circuit. Ground loops can affect the measurement accuracy of the controller.

NOTICE:

Equipment Damage!

Unit transformer IT1 provides power to fan-coil unit only. Field connections directly to the transformer IT1 may create immediate or premature unit component failure.

All input/output circuits (except isolated relay contacts and optically isolated inputs) assume a grounded source, either a ground wire at the supply transformer to control panel chassis, or an installer supplied ground.

Interconnection Wiring

The installer must provide interconne ctio n wir i n g to connect wall-mounted devices such as a fan mode switc h or zone sensor module.

Refer to the unit wiring schematic for specific wiring details and point-to-point wiring connections. Dashed lines indicate field wiring on the unit wiring sc hematics. All interconnection wiring must conform to NEC Class 2 wiring requirements and any state and local requirements.

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Installation - Electrical

Refer to Table 26 for the wire size range and maximum wiring distance for each device.

Table 26. Maximum wiring distances for low voltage

controls (ft)

Device Wire Size Range

Fan Speed Switch 14–22 AWG 500

Zone Sensor 16–22 AWG 200

Recommendation: Do not bundle or run interconnection wiring in parallel with or in the same conduit with any high-voltage wires (110 V or greater). Exposure of interconnection wiring to high voltage wiring, inductive loads, or RF transmitters may cause radio frequency interference (RFI). In addition, improper separation may cause electrical noise problems. Therefore, use shielded wire (Belden 83559/83562 or equivalent) in applicat ions that require a high degree of noise immunity. Connect the shield to the chassis ground and tape at the other end.

Note: Do not connect any sensor or input circuit to an

external ground connection.

Table 27. Free discharge and high static ECMs

programmed to standard ECM mode

Unit Size

2 3.1 0.22 1.8 0.22 1.6 0.24 3 3.1 0.22 1.8 0.22 1.6 0.24 4 3.1 0.22 1.8 0.22 1.6 0.24 6 3.1 0.22 1.8 0.22 1.6 0.24

8 3.1 0.22 1.8 0.22 1.6 0.24 10 3.1 3.1 0.22 0.22 1.8 1.8 0.22 0.22 1.6 1.6 0.24 0.24 12 3.1 3.1 0.22 0.22 1.8 1.8 0.22 0.22 1.6 1.6 0.24 0.24

115 Volt 208–230 Volt 277 Volt

FLA HP FLA HP FLA HP

1 2 1 2 1 2 1 2 1 2 1 2

Table 28. Free discharge ECMs progr ammed to reduced

FLA mode

Unit Size

2 0.6 0.22 0.4 0.22 0.3 0.24

3 0.6 0.22 0.4 0.22 0.3 0.24

4 0.8 0.22 0.6 0.22 0.4 0.24

6 1.1 0.22 0.8 0.22 0.6 0.24

8 1.6 0.22 1.1 0.22 0.8 0.24

10 0.7 1.2 0.22 0.22 0.5 0.8 0.22 0.22 0.4 0.6 0.24 0.24 12 0.7 1.3 0.22 0.22 0.5 0.9 0.22 0.22 0.4 0.7 0.24 0.24

115 Volt 208–230 Volt 277 Volt

FLA HP FLA HP FLA HP

1 2 1 2 1 2 1 2 1 2 1 2

Table 29. High static ECMs programmed to reduced FLA

mode

Unit Size

2 1.3 0.22 0.9 0.22 0.7 0.24 3 1.3 0.22 0.9 0.22 0.7 0.24 4 1.7 0.22 1.2 0.22 0.9 0.24 6 2.3 0.22 1.6 0.22 1.2 0.24

8 3.1 0.22 1.8 0.22 1.5 0.24 10 1.4 2 0.22 0.22 1 1.4 0.22 0.22 0.7 1.1 0.24 0.24 12 1.5 2.8 0.22 0.22 1.1 1.8 0.22 0.22 0.8 1.4 0.24 0.24

115 Volt 208–230 Volt 277 Volt

FLA HP FLA HP FLA HP

1 2 1 2 1 2 1 2 1 2 1 2

Table 30. Low vertical free discharge ECMs

Unit Size

3 3.1 0.22 1090 770 560

4 3.1 0.22 1090 750 560

6 3.1 0.22 1115 760 560

Note: Actual rpm will vary with application and configuration.

115 Volt RPM

FLA HP H M L

Table 31. Lowboy vertical free discharge ECMs

programmed with reduced FLA mode

Unit Size

3 0.5 0.22 1090 770 560 4 0.8 0.22 1090 750 560 6 1 0.22 1115 760 560

Note: Actual rpm will vary with application and configuration.

115 Volt RPM

FLA HP H M L

Table 32. Unit RPM

Unit

Free Discharge—Units

Size

2 980 840 655 980 840 655 3 980 780 580 1080 800 600 4 1050 780 580 1080 800 600 6 1030 780 580 1080 800 600 8 1080 800 600 1080 800 600

10 1050 780 580 1080 800 600

12 1050 780 580 1080 800 600

Unit Size

2 1480 1110 865 1480 1110 865 3 1400 1175 860 1500 1355 1110 4 1475 1315 1070 1580 1375 1240 6 1400 1070 855 1475 1285 975 8 1475 1285 975 1475 1285 975

10 1475 1315 1070 1580 1375 1240

12 1475 1315 1070 1580 1375 1240

Note: Actual rpm will vary with application and configuration.

with 2-Row Coils H M L H M L

1030 780 580 1080 800 600

1080 800 600 1080 800 600

High Static—Units with

2-Row Coils

H M L H M L

1400 1070 855 1475 1285 975

1475 1285 975 1475 1285 975

Free Discharge—Units with

3- and 4-Row Coils

High Static—Units with 3-

and 4-Row Coils

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Installation - Electrical

Table 33. Electric heat kW, low vertical fan-coil

Unit Size Unit Voltage kW kW kW kW

3.0 115 1.00 1.50 2.00

4.0 115 1.00 1.50 2.00 2.50

6.0 115 1.00 1.50 2.00 2.50

Note: Low vertical units are only available with electric heat in combination

with the two-row cooling coil.

MCA and MOP Calculations

Minimum circuit ampacity (MCA) and Maximum Overcurrent Protection (MOP) calculations for units with single-phase electric heat:

Heater amps = (heater kW x 1000)/heater voltage

Note: Use 120 V heater voltage for 115 V units. Use 240 V

heater voltage for 230 V units.

MCA = 1.25 x (heater amps + all motor FLAs) MOP = (2.25 x largest motor FLA) + second motor FLA +

heater amps (if applicable) Select a standard fuse size or HACR type circuit breaker

equal to the MCA. Use the next larger standard size if the MCA does not equal a standard size.

Standard fuse sizes are: 15, 20, 25, 30, 35, 40, 45, 50, 60 amps

Fan-coil electric heat MBh = (heater kW) (3.413)

Table 34. Force-Flo single-stage, max kW electric heat

Unit Size

Note: All data based on individual units. Electric heat will operate only with

Voltage # Wires Heater kW

208/60/1 2 2.25 10.90 240/60/1 2 3.00 12.50 277/60/1 2 3.00 10.90 208/60/3 3 2.25 6.30 240/60/3 3 3.00 7.30 480/60/3 4 3.00 3.70 208/60/1 2 4.50 21.70 240/60/1 2 6.00 25.00 277/60/1 2 6.00 21.70 208/60/3 3 4.50 12.60 240/60/3 3 6.00 14.50 480/60/3 4 6.00 7.30 208/60/1 2 5.70 27.50 240/60/1 2 7.50 31.30 277/60/1 2 7.50 27.10 208/60/3 3 5.70 15.90 240/60/3 3 7.50 18.10 480/60/3 4 7.50 9.10 208/60/1 2 7.90 38.00 240/60/1 2 10.50 43.80 277/60/1 2 10.50 38.00 208/60/3 3 7.90 21.90 240/60/3 3 10.50 25.30 480/60/3 4 10.50 12.70

fan at high speed.

Heater amps/

Table 35. Force-Flo single stage, low kW electric heat

Unit Size

Voltage

208/60/1 2 0.8 3.7 1.5 7.3

240/60/1 2 1.0 4.2 2.0 8.4 277/60/1 2 1.0 3.7 2.0 7.3 208/60/1 2 2.3 10.9 240/60/1 2 3.0 12.5 277/60/1 2 3.0 10.9

208/60/3 3 2.3 6.3 240/60/3 3 3.0 7.3 480/60/3 4 3.0 3.7 208/60/1 2 2.3 10.9 240/60/1 2 3.0 12.5 277/60/1 2 3.0 10.9

208/60/3 3 2.3 6.3 240/60/3 3 3.0 7.3 480/60/3 4 3.0 3.7

208/60/1 2 2.3 10.9 3.3 15.9

240/60/1 2 3.0 12.5 4.5 18.8 277/60/1 2 3.0 10.9 4.5 16.3

208/60/3 3 2.3 6.3 3.3 9.2 240/60/3 3 3.0 7.3 4.5 10.9 480/60/3 4 3.0 3.7 4.5 5.5

208/60/1 2 2.3 10.9 3.3 15.9 4.5 21.7

240/60/1 2 3.0 12.5 4.5 18.8 6.0 25.0 277/60/1 2 3.0 10.9 4.5 16.3 6.0 21.7

208/60/3 3 2.3 6.3 3.3 9.2 4.5 12.5 240/60/3 3 3.0 7.3 4.5 10.9 6.0 14.5 480/60/3 4 3.0 3.7 4.5 5.5 6.0 7.3

208/60/1 2 2.3 10.9 3.3 15.9 5.7 27.5

240/60/1 2 3.0 12.5 4.5 18.8 7.5 31.3 277/60/1 2 3.0 10.9 4.5 16.3 7.5 27.1

208/60/3 3 2.3 6.3 3.3 9.2 5.7 15.9 240/60/3 3 3.0 7.3 4.5 10.9 7.5 18.1 480/60/3 4 3.0 3.7 4.5 5.5 7.5 9.1 208/60/1 2 2.3 10.9 3.3 15.9 6.6 31.8 240/60/1 2 3.0 12.5 4.5 18.8 9.0 37.5 277/60/1 2 3.0 10.9 4.5 16.3 9.0 32.5

208/60/3 3 2.3 6.3 3.3 9.2 6.6 18.4 240/60/3 3 3.0 7.3 4.5 10.9 9.0 21.7

Note: All data based on individual units.

480/60/3 4 3.0 3.7 4.5 5.5 9.0 10.9

Wires

amps

/ph

amps

/ph

amps

/ph

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Table 36. Force-Flo two-stage electric heat

Unit Size

Note: When both stages are on, the electric heat will operate only when fan

Voltage # Wires

208/60/1 2 0.8 2.3 10.9

240/60/1 2 1.0 3.0 12.5 277/60/1 2 1.0 3.0 10.9 208/60/3 3 0.8 2.3 6.3 240/60/3 3 1.0 3.0 7.3 480/60/3 4 1.0 3.0 3.7

208/60/1 2 1.5 4.5 21.7

240/60/1 2 2.0 6.0 25.0 277/60/1 2 2.0 6.0 21.7 208/60/3 3 1.5 4.5 12.6 240/60/3 3 2.0 6.0 14.5 480/60/3 4 2.0 6.0 7.3

208/60/1 2 1.9 5.7 27.5

240/60/1 2 2.5 7.5 31.3 277/60/1 2 2.5 7.5 27.1 208/60/3 3 1.9 5.7 15.9 240/60/3 3 2.5 7.5 18.1 480/60/3 4 2.5 7.5 9.1

208/60/1 2 3.4 7.9 38.0

240/60/1 2 4.5 10.5 43.8 277/60/1 2 4.5 10.5 38.0 208/60/3 3 3.4 7.9 21.9 240/60/3 3 4.5 10.5 25.3 480/60/3 4 4.5 10.5 12.7

208/60/1 2 4.5 10.1 48.8

240/60/1 2 6.0 13.5 56.3 277/60/1 2 6.0 13.5 48.8 208/60/3 3 4.5 10.1 28.2 240/60/3 3 6.0 13.5 32.5 480/60/3 4 6.0 13.5 16.3

208/60/1 2 6.0 13.5 65.0

240/60/1 2 8.0 18.0 75.0 277/60/1 2 8.0 18.0 65.0 208/60/3 3 6.0 13.5 37.6 240/60/3 3 8.0 18.0 43.3 480/60/3 4 8.0 18.0 21.7

208/60/1 2 6.8 15.0 72.3

240/60/1 2 9.0 20.0 83.4 277/60/1 2 9.0 20.0 72.3 208/60/3 3 6.8 15.0 41.7 240/60/3 3 9.0 20.0 48.2 480/60/3 4 9.0 20.0 24.1

is in high speed. All data based on individual units.

1st Stage kWTotal kWTotal

amps/ph

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ECM Overview and Setup

Circuit modules ECM motor

Overview

This section addresses integrating the new Trane electronically commutated motor (ECM) and VelociTach™ motor control board. This exciting new series deliver s outstanding comfort, safety , and performance with greatly reduced energy consumption compared to traditional units with induction AC motors.

The new series of units will provide a long service life with proper installation and operation. The new system provides a high degree of flexibility and configurability, but the simplicity of customized factory configuration appropriate to most installations.

Very little intervention is needed by service and installation personnel in most applications; however, installers must read through the entire document before beginning installation of the new equipment.

This literature focuses on unit motors and controls, including three new circuit modules developed specifically for this series.

Figure 71. UniTrane fan-coil with Trane ECM motor

Electronically Commutat ed Motor (ECM)

Figure 72. Trane ECM motor

• The ECM has integrated electronics, overload protection and short circuit protection. The motor contains no user-serviceable components inside.

There are four primary components that enable the technology on your product:

•Trane ECM

• VelociTach motor control board

• Manual fan speed switch (FSS)

• CSTI adapter board The motors and modules are combined as systems, and

cannot work without each other.

NOTICE:

Equipment Damage!

The motor harness attached t o the single plug to which the motor mates contains the very important motor voltage jumper and should not be modified or substituted. Failure to follow this instruction could result in equipment dama ge.

• The motor mates to the unit electrically via a single plug that contains both the operating voltage and the control signals that are needed for correct operation.

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ECM Overview and Setup

Display and Menu/Enter, Increase, and Decrease buttons

VelociTach Motor Control Board

Figure 73. V elociTach motor control board

The motor control board:

• Coordinates the operation of the fan in response to electric heat behavior and electric behavior in response to hydronic heat behavior.

• Incorporates a user interface that allows adjustment of certain unit parameters and provides constant feedback on motor operation.

• Integrates service and trouble shooting tools, including high-precision tachometers, fan status, and electric heat-enabled indicators.

• Integrates a versatile configurable auxiliary temperature sensor.

• Incorporates various safety and lockout features, such as maintaining proper fan speeds if electric heat is called for.

Status Display

Figure 74. Status display

The motor control board contains a four-digit, sevensegment display that is used to present information in a format close to real-world language, while having a smallform factor. Most characters are immediately recognizable; however, please consult Table 37 and

Table 38 for the graphical representation of each

alphanumeric character.

Table 37. Screen representation of alphabetical characters

ABCDEFGHI JKLMNOPQRSTUVWXYZ



Table 38. Screen representation of numeric characters

1234567890



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Page 85

Manual Fan Speed Switch (FSS)

Customer low-voltage interface for fan speeds, variable fan speed, and 24 Vac supply

3 2 1 5 4 3 2 1

Figure 75. S tandard adapter board field connections

ECM Overview and Setup

1. VSP 10V

2. VSP 0–10V

3. VSP DC COM

1. 24 Vac Y (hot) (TB3)

2. 24 Vac Y (gnd) (TB3)

3. High

4. Medium

5. Low

The adapter allows direct customer interfacing through the use of terminal strips. Standard interfacing includes:

• Fan speeds (H, M, L)

• Variable speed (2–10V) inputs The standard adapter board eliminates many separate

wiring harnesses in the panel and allows simple, mistakeproofed single-plug interfacing of:

• VelociTach motor control board

• Transformers

•Motors

• Valves

•Dampers

• Electric heat control

• Fan speed switches The manual fan mode switch is available for fan-coil units

that do not have Trane factory-mounted control pac kages. This four-position switch (off, high, medium, low) allows manual fan mode selection and is available wall mo unted. The wall-mounted option is low-voltage using a factorywired transformer. A cour tesy 10 Vdc supply is provided for use with an external potentiometer or rheostat. The 10 Vdc supply supports up to 10 mA draw.

TB3 (right five positions) is normally used to pro vide 24 V hookup to a wall mounted fan sp eed switch, and to accept the returns from the switch for High, Medium, and Low requests.

TB4 (left three positions) is normally used to control the system with a 0–10Vdc output from a thermostat/ controller, or a fan control rheostat/potentiometer.

The terminal block functional assignments and polarity are shown for reference only, and the schematics that ship with each uni t sh ould be con sul ted before w iring. Wirin g assignments are configured for each unit.

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ECM Overview and Setup

Customer low-voltage interface for fan speeds, variable fan speed, and 24 Vac supply, valve control, EH control, damper control, condensate overflow status

Valve(s), electric heat, and changeover configuration switches (factory-set)

3 2 1 13 12 11 10 9 8 7 6 5 4 3 2 1

Customer Supplied Thermostat Interface

Figure 76. C STI adapter board and field connections

1. VSP 10V (TB4)

2. VSP 0–10V (TB4)

3. VSP DC COM (TB4)

1. 24 VAC B (hot) (TB3)

2. 24 VAC Y (gnd) (TB3)

3. Fan High (TB3)

4. Fan Medium (TB3)

5. Fan Low (TB3)

6. V1 Open (Cooling) (TB3)

7. V1 Close (Modulating Cooling) (TB3)

8. Freezestat (TB3)

9. Freezestat (TB3)

10. V2 Open/EH Stage 1 (Heating) (TB3)

11. V2 Close/EH Stage 2 (Heating) (TB3)

12. Damper Open/Condensate Overflow (TB3)

13. Damper Close/Condensate Overflow (TB3)

Customer Supplied Thermostat Interface (CSTI) is a control interface intended to be used with a field-supplied, low-voltage thermostat or controller. The control box contains a relay board which includes a line voltage to 24volt transformer and disconnect switch (for non-electric heat units). All end devices are wired to a low-voltage terminal block and are run-tested, so the only a power connection and thermostat connection is needed to commission the unit. Changeover sensors and controls are provided whenever a change-over coil is selected. When N.O. valves are selected, inverting relays are provided for use with standard thermostats.

The CSTI adapter board provides all the hookups of the standard adapter board, but in addition, provides hookups for valve control (main and auxiliary coils), electric heat control, and damper control. Screw terminal blocks provide convenient access to fan controls and to end device control. In addition, a courtesy 10-Vdc supply is provided for use with an external potentiometer or rheostat. The 10-Vdc supply supports up to 10 mA draw.

TB3 (right 13 positions) is normally used to provide:

• 24 Vac supply to a wall fan speed switch or

• 24 Vac supply to a field-installed unit-mounted controller, or a wall-mounted controller or thermostat

• Inputs (returns) for thermostatic fan control: High, Medium, and Low

• Inputs (returns) for cooling/heating requests

• Inputs (returns) for electric heat requests

• Inputs (returns) for damper operation requests

TB4 (left three positions) is normally used to control the system with a 0–10Vdc input from a thermostat/controller with a variable speed output, or a fan control rheostat.

Installation and Initial Setup

WARNING

Hazardous Voltage w/Capacitors!

Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. Verify with an appropriate voltmeter that all capacitors have discharged.

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

86 UNT-SVX07E-EN

Page 87

WARNING

Hazardous Service Procedures!

Failure to follow all precautions in this manual and on the tags, stickers, and labels could result in death or serious injury. Technicians, in order to protect themselves from potential electrical, mechanical, and chemical hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well as the following instructions: Unless specified otherwise, disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. When necessary to work with live electrical components, have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks.

Safety Requirements

Follow all recommendations below. Failure to do so could result in death or serious injury.

• The ECM motors contain capacitors which store residual energy. Please keep clear of the fan wheels for 5 minutes after the power has been removed from the system, as a power request with the motor powered off, could result in a very short period of actuation.

• All settings take effect immediately, including fan startup and enabling of electric heat. Caution should be taken to stay clear of hazardous voltages, moving parts and electric heat elements while making adjustments to the VelociTach motor control board. If it is not practical to stay clear of these areas during adjustment of the motor control board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery.

• The adapter boards contain high voltage. Configuration adjustments to the motor control board should be made through the SMALL ER of the two low voltage lids on the front of the control panel, through the low-voltage insulation/shielding.

• Changes to switch settings on the CSTI adapter board take effect immediately. Changes should be made to the CSTI configuration switches with the power off.

• Initial hookups to the CSTI and Standard Adapter board, including low voltage interconnections, must be made with the power off.

• Do not make connections to the motors or the adapter boards while power is ON. Do not remove connections to the motor or the adapter boards while the power is ON.

ECM Overview and Setup

• Do not free spin the fan wheels with your hands while the unit is powered on. The system is constantly scanning and responding to the operational status of the motors.

Setup

Note: Normally, Trane ECMs are configu red for soft

ramps and transitions between speeds. However, to aid in commissioning of the unit, for approximately 10–15minutes, the ramps will be shortened to quickly observe proper unit behavior and response to speeds.

For new installations, all boards and motors are preinstalled and pre-configured according to the unit configuration, indicated by its model number.

Under normal and intended operation, the only required intervention specific to the new ECM units is the wiring of:

• Wall-mounted low-voltage fan speed switch inputs to the adapter boards’ terminal strips and 24 Vac tap to field-installed fan speed switch.

• Field-supplied controllers/thermostats to the adapter boards’ terminal strips and 24 Vac power tap to field-supplied controller/thermostat.

• Adjustment and calibration of the variable speed inputs (VSP/0–10V) on the system.

• Adjustment, calibration or disabling of the optional auto-changeover function on CSTI units.

Otherwise, proceed with the mechanical, electrical and controls installations as defined in other sections of thi s manual, following all warnings and cautions.

After installation, turn power on.

Note: Specifications subject to change without notice.

Consult the unit submittals and unit schematics before determining hookup requirements. Terminal block positions, polarities and assignments are determined for specific unit configurations only. Signal assignments are indicated, for reference only.

Both adapter boards come equipped with integrated terminal blocks to hook up to the field supplied/mounted fan speed switches and external controls. Connections should be made to the screw terminals with wires between 16 AWG and 24 AWG, with a ~4–5-mm wire strip length. The terminal bloc ks have 5-mm spacing, and are equipped with 3-mm screws. The field-supplied wires should have an insulation rating of 600V.

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ECM Overview and Setup

VelociTach Motor Control Board

WARNING

Safety Aler t!

You MUST follow all recommendations below. Failure to do so could result in death or serious injury.

All settings take effect immediately, including fan startup and enabling of electric heat. Caution should be taken to stay clear of hazardous voltages, moving parts and electric heat elements while making adjustments to the motor control board. If it is not practical to stay clear of these areas during adjustment of the motor control board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery.

CAUTION

Burn Hazard!

On electric heat units, certain parameter values are locked out to prevent overheating of the unit. These functions will appear to be saved; however, they will not be accepted if the Electric Heat Prot ection set ting is “On”. Do not change the Electric Heat Protection set ting to “Off” and make changes to the protected settings unless you are programming an unconfigured service replacement board to match the unit settings on a ECM configuration label. F ai lure to follow this instruction could result in the unit overheating and becoming hot to the touch, which could result in minor or mode rate injury, and/or equipment damage.

Figure 77. VelociTach motor control board

The motor control board functions and unit specific settings are summarized on the motor control board configuration label affixed to the back side of the control panel low voltage lid on every unit.

T o chec k status, configuration, or to c hange settings on the motor control board with the power on the unit, detach the low voltage access lid and look or reach through the low voltage access panel. See Figure 77.

88 UNT-SVX07E-EN

The motor control board features a nested me n u integrated user interface (UI) that supports:

• Status display for instant touch-free confirmation of unit operation.

• Configuration parameter and value display and modification changes (using integrated menu/set buttons).

• Error code prioritized reporting.

Note: Characters on the VelociTach motor control board

display appear in red, on a black background.

The display contains decimal po sitions as well that change position with each parameter, as appropriate. Under normal conditions (i.e., with no error code displayed), the status will loop the following message:

Page 89

Figure 78. Operational Status Codes

RPM Mode RUNNING/ FAN STATUS CONTINUOUS LOOP

Displayed when:

1) No error codes are present

2) Motor has completed ramping











/



/



→



ECM Overview and Setup

Indicates the current rpm of Motor 1 in the system. “0” rpm here indicate that no fan speed has been requested.

Indicates the current rpm of Motor 2 in the system. “0” rpm here indicate a fan off condition OR a fan “missing” condition Indicates the status being calculated or Fan Motor 1. If “off,” this indicates that either:

1) No fan speed is being requested or

2) The fan performance is failing to meet the request; refer to “ECM Motors,” page 148 for additional troubleshooting information.

If “ on,” this indicates that the fan is performing correctly and will be used to report fan status correctly, depending on



Indicates the status being calculate d or Fan Motor 2. If “off ,” this indicates that either:

1) No fan speed is being requested or

2) The fan performance is failing to meet the request; refer to “ECM Motors,” page 148 for additional troubleshooting information.

3) If the target speed for Motor 2 is “0,”this is used to indicate a missing motor

If “ on,” this indicates that the fan is performing correctly and will be used to report fan status correctly, depending on



Indicates that the temperature sensing circuit has calculated a logical “on” based on the settings of the following parameters:

(a)

mode.

(a)

///

(a) Motor 1 is the only motor in fan coil units.

User Interface

The VelociTach motor control board’s on-board user interface is easy to use and supports:

• Verification/auditing of on-board parameter settings (read-only)

• Adjustment of the on-board settings (write)

Figure 79. User interface input buttons

UNT-SVX07E-EN 89

The user interface has three input buttons (see Figure 79), from left to right:

•“Menu/Set”

• “Decrement”

• “Increment” Each button has several different actuation levels

depending on length of press, and what the UI is cur rently displaying.

Page 90

ECM Overview and Setup

Table 39. Button actuation leve ls

Button

Short Press in Status Display Short Press in Configuration Display Toggles between parameter name and value without saving

Long Press/Hold in Status Display Long Press/Hold in Configuration Display

Button

Short Press in Status Display

Short Press in Configuration Display <1 sec Scrolls through parameter names, or decreases value of parameter.

Long Press/Hold in Status Display

Long Press/Hold in Configuration Display

Button

Short Press in Status Display

Short Press in Configuration Display <1 sec Scrolls through parameter names, or increases value of parameter.

Long Press/Hold in Status Display

Long Press/Hold in Configuration Display

Duration Action

<1 sec None

(abandons value if changed).

>3 sec Enters the configuration menu

>3 sec If on a parameter name, toggles to the value. If on a parameter value,

saves the value settings and returns to the parameter name as confirmation.

Duration Action

<1 sec None

>3 sec n/a

>3 sec Faster scroll through parameter name, or faster decrease of values of

parameters.

Duration Action

<1 sec None

>3 sec n/a

Faster scroll through parameter name, or faster increase of values of parameters.

Menu/Set

Decrement

Increment

Configuration Examples

Example 1.

saving. In this case we wish to verify that the “Low Speed Value” for Motor 1 is set correctly to 800 rpm.

Figure 80. Verify low speed value

Example 2.

Low Speed to 820 rpm: We will continue from the previous example as shown

below, using a long press to “save” the new desired value.

Note: If the display has timed out and returned to the

To view the value of parameters without

We wish to change the change the value of

status loop, repeat Example 1 to arrive back at this example’s starting point.

We start with the motor control board scrolling status display and proceed as follows:

Figure 81. Change value of low speed

90 UNT-SVX07E-EN

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ECM Overview and Setup

Example 3.

“820 rpm” has been sa ved.

Note: If the display has timed out and returned to the

Figure 82. V erify value of 820 rpm

Example 4.

value on an electric heat unit. See Figure 83. It would appear that the value has been changed, but if we

chec k the value, we notice that the original val ue has been retained.

Figure 83. Change value on electric heat unit

We wish to double check to see if the value of

status loop, repeat Example 1 and Example 2 to arrive back at this example’s starting point.

We wish to change the value of a protected

Priority/Error Display

Under special conditions, the status display will interrupt briefly to prioritize display of events:

Notes:

• During error displays, the user interface will be

disabled, until the error is removed or resolved.

• If changes are made to parameters and saved, most settings take effect immediately. Any change to fan speeds will take effect and cause the configuration menu to exit immediately to begin tracking speeds via the on-board tachometer.

• If a error occurs while the configuration menu is in effect, all unsaved values will be discarded and the error codes will be displayed.

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ECM Overview and Setup

Table 40. Error Codes

Displayed during abnormal operation.

 

 

 

 

  

→ →

 



Note: Fan coil units have only Motor 1 installed.

Indicates a locked rotor condition of Motor 1. The motor will be locked out until the cause has been resolved, and the power cycled; refer to “,” p a g e 14 8 for resolution details.

Fan Status function, if being used, will report an inoperative motor. Electric heat and changeover heat will be shut down. Indicates a locked rotor condition of Motor 2. The motor will be locked out until the cause has been resolved, and the power cycled; refer to “,” p a g e 14 8 for resolution details.

Motor 1 will continue to operate, but will not be monitored. Fan Status function, if being used, will report an inoperative motor. Electric heat and changeover heat will be shut down. Indicates that Motor 1 has experienced a run-away or over speed condition, and has been shutdown. The unit will offer limited “limp-in” performance, and Motor 2 will continue to operate, but will not be monitored. Fan Status function, if being used, will report an inoperative motor.

Refer to “,” p a g e 1 4 8 to reset, the cause must be resolved and the power to the unit cycled. Electric heat and changeover heat will be shut down. Indicates that Motor 2 has experienced a run-away or over speed condition, and has been shutdown. The unit will offer limited “limp-in” performance, and Motor 1 will continue to operate, but will not be monitored. Fan Status function, if being used, will report an inoperative motor.

Refer to “,” p a g e 1 4 8 to reset, the cause must be resolved and the power to the unit cycled. Electric heat and changeover heat will be shut down. Indicates the motor is transitioning between speeds, ramping up or down. The message “RAMP” is briefly displayed, followed by the target speed for “Motor 1” only. Once the target speed has been reached, the status display will resume operation. On power on, the version of software is briefly displayed, followed by the results of a POST (power on self test).

Adjustments

After connections of power and hookup of customer installed controls/fan speed switches and under normal operative conditions, the only adjustments needed to be made to the motor control board during commissioning of the unit are:

• Adjustment and calibration of the variable speed inputs (VSP/0–10V) on the system, where applicable.

• Adjustment, calibration or disabling of the optional auto-changeover function on CSTI units, where applicable.

In addition, the CSTI adapter board offers configurability that can be used in special cases to adjust the following operation of the unit:

• Courtesy cooling/main valve logic inversion relays for use with normally open valves

• Courtesy heating/auxiliary valve logic inversion relays for use with normally open valves

• Changeover function for use with changeover coils (in conjunction with the motor control board)

92 UNT-SVX07E-EN

The switches are factory-set based on the model number configuration as ordered; however, the information is provided below to aid in the understanding of the operation of the system.

Adjusting Variable Speed Inputs

WARNING

Hazardous Voltage w/Capacitors!

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

Page 93

WARNING

Safety Aler t!

You MUST follow all recommendations below. Failure to do so could result in death or serious injury. All settings take effect immediately, including fan startup and enabling of electric heat. Caution should be taken to stay clear of hazardous voltages, moving parts and electric heat elements while making adjustments to the motor control board. If it is not practical t o sta y clear of these areas during adjustment of the motor control board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery.

CAUTION

Burn Hazard!

On electric heat units, certain parameter values are locked out to prevent overheating of the unit. These functions will appear to be saved; however, they will not be accepted if the Electric Heat Protection setting is “On”. Do not change the Electr ic Heat Pr otecti on settin g to “Off” and make changes to the protected settings unless you are programming an unconfigured service replacement board to match the unit settings on a motor control board configuration label. Failure to follow this instruction could result in the unit overheating and becoming hot to the touch, which could result in minor or mod erate injury, and/or equipment damage.

NOTICE:

Equipment Damage!

You MUST follow all recommendations below. Failure to do so could result in equipment damage.

• Care should be taken in the system to use a single 24 Vac su pply system to av oid damage to equipm ent.

• Care should be taken to observe pr oper polar ity and grounding in the hookup of the 0–10V system to avoid damage to equipment.

Notes: Note: Configuration adjustments to the motor control

board should be made through the SMALLER of the two low-voltage li ds on the front of the control panel, through the low-voltage insulation/ shielding.

• The 0–10V (variable speed) inputs are available for use, but are not mandatory. The ECM system comes standard with three to five field-accessible thermostatic inputs (with adjustable speed), so the use of the 0–10V inputs is optional.

• All inputs are independently configurable and simultaneously accessible, and the motor control

ECM Overview and Setup

board will choose the highest user (configured and requested) speed. However, care should be taken with customer controls to avoid contention of signals.

The motor control board and adapter boards offer standard, normalizing 0–1 0V V ariable spee d fan inputs for use with field supplied controllers or thermostats. These inputs can be used as the only input to the system, used in addition to the thermostatic (H, M, L) inputs, or not used at all. The inputs are accessible via 1TB4 on the adapter boards.

The motor control board is factory configured to drive the unit to a minimum speed (catalogue “low speed” value),



and



defined as is honored. As a default, the noise floor/threshold is set to 3 percent (0.3V). At 0.3V, the system will drive the motors to the speeds defined in defined as analogue input goes to 10V, the motor control board will drive the motor to maximum speed (normally catalogue “high speed” value), defined as change speed in response.

Although the Veloci Tach motor control board ships with settings that will work with most 0–10Vdc outputs, calibration should be performed to maximize response range and controller authority. T ypically , the only settings needed for the VSP inputs are calibration of the signal to ensure that the system obeys the following rules:

• The minimum output from the field supplied controller is met with a positive fan response. That is, we do not



want the be higher than the minimum output of the field supplied controller, as the motor control board will “ignore” a portion of the usable range of the customer fan variable speed output.

• The minimum output from the field supplied controller is not significantly greater than the floor setting floor. If the minimum output of the controller is significantly greater than the floor setting, the first point that the motor will turn on will be above the



and will not be fully utilized in this case, as the motor will never reach the low speed motor analogue input scaling value for Motor 1 and Motor 2 (



)

• The maximum output of the controller needs to be 10V , or if lower, needs to be compensated using the analog input scaling value, range. As a default, the scaling value is set to 1.00 (so a voltage of 5V will be graded as 5V); however, to compensate for long runs or lower max voltages (i.e., lower than 10.00), the scaling value can be increased accordingly to maximize operational range.

For example, if the voltage is only reaching a value of

9.0V at the adapter boar ds, t hen the should be set to (10/9=) unit will never attain maximum speeds, defined as



and

setting on the motor control board to





once the analog (0–10V) input



and



. If the



and



, and will



value. The full range of motor control



and



to normalize the operational



parameter



.

. If left un-calibrated, the

UNT-SVX07E-EN 93

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ECM Overview and Setup

• The motor control board can accept slightly over-



biased inputs up to 12 Vdc, and the can be set to a value less than 1.0 to compensate.

parameter

VSP Setup Examples



Figure 84. Example 1:

too high

Figure 85. Example 2:

correctly

set too high and



set too high but



set

Potentio meter/Rheostat For VSP

WARNING

Hazardous Voltage w/Capacitors!

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

WARNING

Safety Alert!

You MUST follow all recommendations below. Failure to do so could result in death or serious injury. All settings take effect immediately, including fan startup, enabling of electric heat. Caution should be taken to stay clear of hazardous voltages, moving parts and electric heat elements while making adjustments to the motor control board. If it is not practical to sta y clear of these areas during adjustment of the motor cont rol board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery.

Figure 86. Example 3:

correctly



set correctly and



set

A courtesy 10-Vdc supply is provided that can support a 10-mA draw. The use of a 1K or a 10K potentiometer is recommended, and only a stand-alone potentiometer (not shared with any other electrical system) should be employed. When a simple potentiometer is used as



depicted in Figure 87, the zone (off).

The typical connection is depicted in Figure 87; however, please consult the unit schematic for the most updated instruction, as Figure 87 is provided as reference only.

Figure 87. Typical connection

setting will define a null-

94 UNT-SVX07E-EN

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ECM Overview and Setup

Adjusting Optional A uto-Chang eov er Function on CSTI Units

WARNING

Hazardous Voltage w/Capacitors!

For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN

The motor control board provides additional temperature controlled logic to help coordinate certain electric-heat and valve logic functions:

• On units with electric heat and a changeover coil, the motor control board and adapter boards are preconfigured to cause hydronic heat and electric heat to be mutually exclusive:

– On units with ComfortLink™ controls (Tracer ZN

controllers) or BacNet™ controls (UC400), the T racer ZN controller board will serve as the primary logic to select the electric heat only if hot water is not available, but the motor control board will service as a backup lockout.

– On units with Customer Supplied Controllers (CSTI

units), the motor control board and CSTI board will serve as the primary lockout.

• On CSTI units selected with a changeover coil configuration, the motor control board is factory configured to work in conjunction with the CSTI adapter board to provide a useful auto-changeover function. T raditionally , a fixed setpoi nt bi-metallic disc temperature switch is used to provide changeover with customer controls; however, the motor control board has defeatable and configurable bi-metallic disc temperature switch emulation when combined with the CSTI adapter board. The motor control board is preconfigured for typical values, so changeover settings do not necessarily need to be changed.

– A n NTC thermistor is supplied and affixed to the

supply pipes where applicable. The motor control board has several settings that affect the operation of the changeover function:



•

parameter should normally be set to





a changeover coil without electric heat.



has a changeover coil with electric heat.

to use the changeover functions.

parameter should be chosen if the unit has

parameter should be chosen if the unit



Generally , this will perform the same as the parameter but in addition, will disable heating function on electric heat and on the c hangeov er coil if there are fan failures. The auxillary heating coil function will continue to operate and respond to the customer heating request.



•

• When combined with the CSTI adapter board, the bi-

parameter should be set to  for CSTI units and



for ComfortLink or BacNet controller units.



parameter defines the temperature at which the motor control board will close the triac onboard the motor control board (if correctly).



parameter defines the temperature at which the motor control board will open the triac onboard the motor control board (if correctly). By leaving a “gap” between the make and break value, we will simulate hysteresis of a real bimetallic disc temperature switch.

metallic disc temperature switch emulation and the electric heat lockout function will work when the switches are set correctly.



parameter is set



parameter is set

CSTI Adapt er Boar d Configuration

CAUTION

Burn Hazard!

If SW4 is turned off, the factory/customer controller/ thermostat will be able to actuate the electric heat while hot water is available or if the fans have failed. This switch should NOT be turned off if the unit schematic indicates that it should be on, to prevent overheating of the unit (due to simultaneous electric heat and hydronic heat actuation, or failure of the fan) and to use the preferred hydronic heating over electric heat. Failure to follow this instruction could result in the unit overheating and becoming hot to the touch, which could result in minor or moderate injury, and/or equipment damage.

For CSTI units, th e board mounted switc hes have to be set appropriately to enable the desired functionality.

Figure 88. C STI adapter board: board-mounted

switches



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ECM Overview and Setup

Table 41. CSTI adapter board: switch functions

Switch (L-R) SW1 SW2 SW3 SW4

Function Valve one operation logic Valve two operation logic Changeover Function

UP position

(towards terminal strip)

DOWN position

(towards black relays)

Normally Open Valve Normally Open Valve Changeover Function ON

Normally Closed Valve Normally Closed Valve Changeover Function OFF

Electric Heat / Fan Proving

Function

• All switches are factory-s et ba se d on cus tom er configuration of the unit model number. The unit will function correctly as shipped; however, the switch functions and positions are depicted for customer convenience and for service and troubleshooting aids.

• SW3 and SW4 work in conjunction with settings on the motor control board controller. Simple activation of changeover and electric heat loc kout function may not work correctly unless the motor control board is configured to perform these functions.

• Customers are advised to locate the changeover coil temperature sensor on the bypass line if possible, to avoid measuring standing water temperature.

• If a 4-pipe unit with changeover function is selected, the heating input will drive the main coil if hot water is detected, but will always drive the auxiliary coil or electric heat (where available).

• Where electric heat is available with a changeover coil, the electric heat is factory-configured to be deactivated if there is hot water available and if there is a fan failure.

The CSTI board comes with courtesy valve inversion relays that allow both normally open and normally closed two-position valves to be used with simple thermostats that do not have the configurability to adapt to the customer choice of valves. Independent switches, SW1 and SW2, are provided for 2-pipe or 4-pipe units, or 2-pipe units with an optional reheat coil. The functions of SW1 and SW2 is downstream of the changeover function (SW3 and motor control board). Decisions made by the changeover circuits will be flowed to the inversion circuits, if they are selected.

SW3 enables or disables the changeover function for 2-pipe changeover coil units, or 4-pipe units where the coil has both a heating/cooling circuit and a heating circuit piped internally. If SW3 is turned off, the changeover function will be disabled, and the unit will then be configured as a cooling only coil, a heating on ly coil, or a combination of cooling only/heating only coil. Thus, customer cooling requests will drive the main valve, and heating requests will drive the auxiliary valve.

The changeover function is designed to work with customer controllers that request heating or cooling (based on customer request), but have coil water temperatures that are “changed over” from heating to cooling (or cooling to heating) depending on the season and the building equipment available. Customer thermostats MUST be hooked to the correct terminal strip locations (V1 and V2) for the changeover functi on to work.

Cooling

In general, the (CSTI) changeover function will provide cooling if:

1. A u nit is factory configured with a changeover coil (cooling/heating) as the only coil or as the main coil portion.

2. SW3 on the CSTI adapter board is turned on, and the



parameter set to

changeover functions.



3. The motor control board has sensed that there is cold water available on the supply/bypass line for the changeover coil. In this case, “cold” water is inferred by the motor control board if:

a. A 10K NTC thermistor (similar to T rane part number

b. The input impedance o f the thermistor circuit must

c. The temperature sensed is lower than the

d. The

e. The temperature is not in the dead-band between

4. The customer thermostat is properly hooked up the input strip 1TB3, and is requesting cooling input (V1) based on the customer cooling setpoint being lower than the space temperature.

parameter should be chosen if the unit has a

changeover coil without electric heat.



parameter should be chosen if the unit has a changeover coil with electric heat. Generally, this will perform the same as the will in addition, disable the heating function on electric heat and on the changeover coil heat if there are fan failures. The auxiliary heating coil valve will continue to respond to customer heatin g re quests .

X13790374010) is wired properly to the motor control board, through the crossover cables and CSTI adapter boards.

be set correctly (the to



for CSTI units).

parameter.



parameter is higher than the

parameter.



the this case, previous state will be retained).

parameter and the





to use the



parameter but



parameter should be set



parameter (in



96 UNT-SVX07E-EN

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ECM Overview and Setup

Heating

In general, the (CSTI) changeover function will provide heating if:

1. A unit is factory-configured with a changeover coil (cooling/heating) as the only coil or as the main coil portion.

2. SW3 on the CSTI adapter board is turned on, and the



parameter set to

changeover functions.



3. The motor control board has sensed that there is hot water available on the supply/bypass line for the changeover coil. In this case, “hot” water is determined if:

a. A 10K NTC thermistor (similar to T rane part number

b. The input impedance of the thermistor circuit must

c. The temperature sensed is higher than the

d. The

e. The temperature is not in the de ad-band between

4. The custo mer thermostat is properly hooked up the input strip 1TB3, and is requesting heating input (V2) based on the customer heating set point being higher than the space temperature.

5. The heating input on 1TB3 will drive the main changeover coil IF conditions 1–4 are satisfied, but will always drive the auxiliary coil valve (if present). Electric heat will be locked out (where present) if hot water is available since SW4 will be factory set to “ON” in these units.

SW4 selects the electric heat lockout function, where we will lock out the electric heat circuit based on either:

1. The presence of hot water in the changeover coil section (if the

2. Abnormal behavior of the fan/s (if the is set to

parameter should be chosen if the unit has a

changeover coil without electric heat.



X13790374010) is wired properly to the motor control board, through the crossover cables and CSTI adapter boards.

be set correctly (the



for CSTI units).

parameter.



parameter is higher than the

parameter.



the this case, previous state will be retained).

parameter and the









to use the



parameter but



parameter should be set



parameter is set to







parameter (in



parameter

3. Or a combination of both the presence of hot water or abnormal behavior of the fan/s (i f the is set to

4. The preceding three examples depend on the inference of the motor control board that hot water is present. In this case, “hot” water is determined if:

a. The temperature sensed is higher than the

b. The

c. The temperature is not in the dead-band between

d. The input impedance o f the thermistor circuit must



parameter.



parameter is higher than the

parameter.



the this case, previous state will be retained).

be set correctly (the to



parameter and the

for CSTI units).



parameter should be set





parameter (in

VelociTach Control Board Configuration

Every Trane unit with ECM motors will have modules specifically configured at the factory for the operation of that unit. The motor control board configuration label is affixed to the low-voltage access lid on the outside of the control panel (see Figure 77, p. 88 and Figure 89, p. 98). The VelociTach motor control board label may be on the back-side of the low voltage access lid, depending on the unit configuration.

The serial number of each unit and the custom configuration settings specific to that unit will be printed on the label for convenient matching of labels/settings to specific units. Programming a unit with the set tings f rom another unit will result in abnormal operation. The label contains four important sections:

1. How to enter the configuration menu

2. The description and meaning of the Error Codes

3. The description and meaning of the status display

4. The parameter names and values specific to that unit

parameter





UNT-SVX07E-EN 97

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ECM Overview and Setup

Figure 89. Motor control board label

Motor Control Board Settings

WARNING

Safety Alert!

You MUST follow all recommendations below. Failure to do so could result in death or serious injury. All settings take effect immediately, including fan startup and enabling of electric heat. Caution should be taken to stay clear of hazardous voltages, moving parts and electric heat elements while making adjustments to the motor control board. If it is not practical to sta y clear of these areas during adjustment of the motor cont rol board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery.

CAUTION

Burn Hazard!

On electric heat units, certain parameter values are locked out to prevent overheating of the unit. These functions will appear to be saved; however, they will not be accepted if the Electric Heat Protection setting is “On”. Do not change the Electric Heat Protection set ting to “Off” and make changes to the protected settings unless you are programming an unconfigured service replacement board to match the unit settings on a ECM configuration label. Failure to follow this instruction could result in the unit overheating and becoming hot to the touch, which could result in minor or moderate injury, and/or equipment damage.

NOTICE:

Equipment Damage!

Do not change the PWM output voltage settings as motor damage could occur.

Note: This label is provided for reference only, as an

example, and should not be used to configure the unit.

98 UNT-SVX07E-EN

Note: The motor control board functions and unit specific

settings are summarized on the motor control board configuration label affixed to the back side of the control panel low voltage lid, on every unit.

Table 42 lists the parameter names and typical settings of

the motor control board, for reference only. Do not change the electric heat protection settings if your

unit has electric heat. If the format setting for rpm values are not correct (i.e., not

four -digit: XXXX), please c hec k the operation mode of the



and





motor control board



output format

Note: The adapter boards contain high voltage.

Configuration adjustments to the motor control board should be made through the SMALLER of the two low-voltage lids on the front of the control panel, through the low-voltage insulation/ shielding.

and

and motor signal

Page 99

ECM Overview and Setup

Table 42. Configuration settings of the motor control board for fan coil and cabinet heater units

Note: These notes are provided for reference only,

and the motor control board label must be used as the ultimate guide for setting up an motor control board on specific units.

Do not exceed 2300 rpm.

Do not set under 600 rpm.

, , , 

locked out on units with electric heat.

Analog inputs below the rejected.

Blower coils have only one motor.

If the unit has only one motor, all seven speed settings for the second motor

(

, , , , 





) should be set to zero.

Must be set to

On blower coil units, the changed.

This setting must NOT be changed, as damage to the motor may occur!

This envelope protection value should not be altered.

This setting has to be correct for proper unit operation of electric heat and changeover units.

  



Description on

Unit Label

Mtr 1 High Spd Mtr 1 Med Spd Mtr 1 Low Spd EHStg1 Mtr1 Spd

EH Stg 2 Mtr 1 Spd

AI High Spd Mtr 1

AI Low Spd Mtr 1

Mtr 2 Hgh Spd Mtr 2 Med Spd Mtr 2 Low Spd EHStg1 Mtr2 Spd

EH Stg 2 Mtr 2 Spd

AI High Spd Mtr 2

AI Low Spd Mtr 2

Op Mode Mtr 1 Op Mode Mtr 2 Mtr 1 Out Format

Mtr 2 Out Format Mtr 1/2 PWM Freq.

Mtr 1 PWM Volt

Mtr 2 PWM Volt

Mt1 Hgh PWM Lt

Mt1 Low PWM Lt

Mt2 Hgh PWM Lt

Mt2 Low PWM Lt

Mt1 Ovspd RPM

Mt2 Ovspd RPM

Fan Proving Fct

User

Interface

Name

Typical User

Interface

Value Description

       

 

 

 

       

 

 

 

     

   

 

 

 

 .

 

 .

 

 

 

Sets the high-speed rpm for Motor 1.

Sets the medium-speed rpm for Motor 1.

Sets the low-speed rpm for Motor 1.

Assigns an rpm to be associated with a call for

stage electric heat, for Motor 1 (only on units

equipped with electric heat). Assigns an rpm to be associated with a call for

stage electric heat, for Motor 1 (only on

electric heat equipped units). Sets the maximum rpm for Motor 1 for the

maximum input value of the analog input.

Sets the minimum turn-on rpm for Motor 1, when the analog input becomes active.

Sets the high-speed rpm for Motor 2.

Sets the medium-speed rpm for Motor 2.

Sets the low-speed rpm for Motor 2.

Assigns an rpm to be associated with a call for

stage electric heat, for Motor 2 (only on

electric heat equipped units).

Assigns an rpm to be associated with a call for

stage electric heat, for Motor 2 (only on

electric heat equipped units). Sets the maximum rpm for Motor 2 for the

maximum input value of the analog input. Sets the minimum turn-on rpm for Motor 2,

when the analog input becomes active. Sets the operational mode for Motor 1.

Sets the operational mode for Motor 2.

Sets the interface type for Motor 1.

Sets the interface type for Motor 2

Sets the PWM frequency, for cases when the PWM outputs are used.

Sets the PWM voltage, for cases when the PWM outputs are used.

Sets the maximum output percentage that the controller will request from Motor 1.

Sets the minimum maximum output percentage that the controller will request from Motor 1.

Sets the maximum output percentage that the controller will request from Motor 2.

Sets the minimum maximum output percentage that the controller will request from Motor 2.

Selects the rpm above which the Motor 1 will be assumed to be in an overspeed condition and will need to be shut down.

Selects the rpm above which the Motor 2 will be assumed to be in an overspeed condition and will need to be shut down.

Selects which mode should be assigned to the Binary output circuit, depending on unit type.

settings are



setting will be

for blower coil units.



must not be

UNT-SVX07E-EN 99

Page 100

ECM Overview and Setup

Table 42. Configuration settings of the motor control board for fan coil and cabinet heater units

Note: These notes are provided for reference only,

and the motor control board label must be used as the ultimate guide for setting up an motor control board on specific units.

A value of compensation is needed (i.e., voltage peak is at 10 Vdc).

Do not change this setting as this is critical to proper unit operation.

Do not change this setting.

Operation also depends on



Operation also depends on



Should be pre-set to “OUT” for Tracer ZN controllers.

Is used to force faster ramps when electric heat is requested.

Overrides the ramp rates the

calculated ramp time exceeds

Not used on fan-coil unit.

This will shut down the affected motor, if rotational response is not detected.

Do NOT change this setting. This setting locks out the following parameters from being changed, for safe operation of the unit.



should be used if no voltage level

settings.

Description on

Unit Label

AI Boost Amp

AI Floor

PulsePerRev

P Value Mtr 1

I Value Mtr 1

P Value Mtr 2

I Value Mtr 2

Ht Sens Mk Val F

Ht Sens Bk Val F

Ht Sens Resistor Mt 1 Ramp %/sec

Mt 2 Ramp %/sec EH Ramp Accel

Ramp MAX Time

EH Fan off delay

Lck Rtr Protect

Protect Funct

User

Interface

Name

Typical User

Interface

Value Description

 

 .

 

 .

 .

 .

 .

 

 

   

   

 

 

 

 

Boosts or attenuates the analog input signal to compensate for long wire runs.

Rejects noise on the analog input lines and sets up the motor control board to turn on if the thermostat or controller is commanding its analog outputs on.

Sets up the tachometer function to be compatible with the on-board motor and for correct speed calculation and calibration.

Sets up the on board closed loop control to control Motor 1 with proper stability.

Sets up the on board closed loop control to control Motor 2 with proper stability.

Sets the make value for the motor control board triac output based on the thermistor input.

Sets the break value for the motor control board triac output based on the thermistor input.

Sets the input impedance of the thermistor input.

Sets the ramp rate for Motor 1, in % per second.

Sets the ramp rate for Motor 2, in % per second

Sets the acceleration factor for the electric heat inputs.

Sets the maximum ramp time for both Motor 1 and Motor 2 (in seconds).

Selects how long the fan needs to stay on after an electric heat request has been turned off.

Selects whether to use the on-board locked rotor protection function.

This function protects settings on the board that affect the safety of the electric heat system.



       

    

, 

, 

and





, and

100 UNT-SVX07E-EN

Trane UniTrane Fan Coil, Force Flo Cabinet Heater Installation, Operation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual