Trane UniTrane, Force-Flo, FC, FF, FCKB Installation, Operation And Maintenance Manual

...

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

SAFETY WARNING

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be h azardous an d r equir es specific kno wledg e and training. Impro perly installed, adjusted or altered equipment b y an unqualified person could r esult in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that ar e attached to the equipment.

June 2018

UNT-SVX07J-EN

Introduction

Read this manual thoroughly before operating or servicing this unit.

Warnings, Cautions, and Notices

Safety advisories appear throughout this manual as required. Y our personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:

WARNING

Proper Field Wiring and Grounding Required!

Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, y ou MUST f ollow r equir ements for field wiring installation and grounding as described in NEC and your local/state electrica l codes.

WARNING

CAUTIONs

NOTICE:

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

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

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

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 af fect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. T rane advocates the responsible handling of all refrigerants-including industry replacements for CFCs and HCFCs such as saturated or unsaturated HFCs and HCFCs.

Important Responsible Refr igerant 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 according to local rules. F or the USA, the Federal Clean Air Act (Section 608) sets for th the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

WARNING

Personal Protective Equipment (PPE) Required!

Failur e t o w ear pro per PPE f or the job being under taken 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 instructions below:

• Before installing/servi cin g th is un it, technicians MUST put on all PPE required for the work being undertaken (Examples; cut r esistant glo v es/sleeves, butyl gloves, saf ety glasses, hard hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to appropriate Material Safety Data Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.

• When working with or ar ound hazar dous chemi cals, ALWAYS refer to the appropriate MSDS/SDS and OSHA/GHS (Global Harmonized System of Classification and Labelling of Chemicals) guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.

• If there is a risk of ener gized electr ical contac t, arc, or flash, technicians MUS T put on all PPE in accor dance with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED FOR INTENDED VOLTAGE.

WARNING

Follow EHS Policies!

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

• All Ingersoll Rand personnel must f ol low Ingersoll Rand Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/tagout, refrigerant handling, etc. All policies can be found on the BOS

site. Where local regulations ar e more str ingent than

these policies, those regulations supersede these policies.

• Non-Ingersoll Rand personnel should always follow local regulations.

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

Introduction

Trademarks

All trademarks referenced in this document are the trademarks of their respective owners.

Revision History

Updated for valve change.

UNT-SVX07J-EN 3

Table of Contents

Model Number Descriptions . . . . . . . . . . . . . . 5

UniTrane™ Fan Coil/ Force Flo™ Cabinet Heater

UniTrane™ Fan Coil Low Vertical Model . . 8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General Information . . . . . . . . . . . . . . . . . . . . 10

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . 11

Receiving and Handling . . . . . . . . . . . . . . . 11

Jobsite Storage . . . . . . . . . . . . . . . . . . . . . . 11

Site Preparation . . . . . . . . . . . . . . . . . . . . . . 12

Dimensions and Weights . . . . . . . . . . . . . . . . 13

Service Clearances . . . . . . . . . . . . . . . . . . . . 13

Component Data . . . . . . . . . . . . . . . . . . . . . 14

Available Models . . . . . . . . . . . . . . . . . . . . . 15

Coil Connections . . . . . . . . . . . . . . . . . . . . . 41

Fresh Air Opening Locations . . . . . . . . . . . 45

Wall Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Projection Panel . . . . . . . . . . . . . . . . . . . . . . 48

Installation—Mechanical . . . . . . . . . . . . . . . . 49

Installation Checklist . . . . . . . . . . . . . . . . . . 49

Installing the Unit . . . . . . . . . . . . . . . . . . . . . 50

Duct Connections . . . . . . . . . . . . . . . . . . . . . 52

Coil Piping and Connections . . . . . . . . . . . . . 53

Piping Package Components . . . . . . . . . . . 54

Hydronic Coil Piping . . . . . . . . . . . . . . . . . . 54

Water Piping Connections . . . . . . . . . . . . . 54

Condensate Drain Connections . . . . . . . . . 55

External Insulating Requirements . . . . . . . 56

Balancing Manual Circuit Setter Valve . . . 57

Installation - Electrical . . . . . . . . . . . . . . . . . . . 60

Unit Wiring Diagrams . . . . . . . . . . . . . . . . . 60

Supply Power Wiring . . . . . . . . . . . . . . . . . 60

Electrical Grounding Restrictions . . . . . . . 60

Interconnection Wiring . . . . . . . . . . . . . . . . 60

MCA and MOP Calculations . . . . . . . . . . . . 61

ECM Overview and Setup . . . . . . . . . . . . . . . 65

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Electronically Commutated Motor (ECM) 65

VelociTach Motor Control Board . . . . . . . . 66

Installation and Initial Setup . . . . . . . . . . . .67

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . .72

Configurations . . . . . . . . . . . . . . . . . . . . . . . .75

Installation - Controls . . . . . . . . . . . . . . . . . . . .80

Control Options . . . . . . . . . . . . . . . . . . . . . . .80

Installation - Controllers . . . . . . . . . . . . . . . . . .84

Tracer® ZN010 and ZN510 Controllers . . .84

Tracer® ZN520 Controller . . . . . . . . . . . . . .84

Tracer® UC400-B Controller . . . . . . . . . . . .85

Air-Fi® Wireless Communications System 89

Zone Sensor Options . . . . . . . . . . . . . . . . . . . .91

Zone Sensor Installation . . . . . . . . . . . . . . . .92

Zone Sensor Settings . . . . . . . . . . . . . . . . . .95

Sensor Operations . . . . . . . . . . . . . . . . . . . . .97

Wireless Sensor Specifications . . . . . . . . . .98

Agency Compliance . . . . . . . . . . . . . . . . . . .99

Wireless Display Sensor (WDS) . . . . . . . . .99

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

Pre-Startup Checklist . . . . . . . . . . . . . . . . . .103

Unit Startup . . . . . . . . . . . . . . . . . . . . . . . . .104

Tracer® ZN010/ZN510 Controllers . . . . . .104

Tracer® ZN520 Controllers . . . . . . . . . . . .106

Tracer® UC400-B Controller . . . . . . . . . . .114

Routine Maintenance . . . . . . . . . . . . . . . . . . .122

Maintenance Checklist . . . . . . . . . . . . . . . .122

Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

Control Device Replacement . . . . . . . . . . .125

Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . . .125

Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

Diagnostics and Troubleshooting . . . . . . . .130

Fan Coil and Cabinet Heater . . . . . . . . . . .130

Wireless Zone Sensors (WZS) . . . . . . . . . .131

Servicing/Testing Wireless Zone Sensors 136 ZN010, ZN510, and ZN520 Controllers . . .137

Tracer® UC400-B Controller . . . . . . . . . . .143

ECM Motors . . . . . . . . . . . . . . . . . . . . . . . . .150

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . .156

4 UNT-SVX07J-EN

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 = Fan Coil FF = Force Flo

Digit 3 — Model

A = Vertical concealed B = Vertical cabinet C = Horizontal concealed D = Horizontal cabinet E = Horizontal recessed F = Vertical Wall-hung H = Vertical recessed J = Vertical slope-top M = Inverted vertical cabinet N = Inverted vertical recessed P = Compact concealed

Digit 4 — Development Sequence

B = Development B

Digits 5, 6, 7 — Unit Cabinet Size

020= 200 cfm 030= 300 cfm 040= 400 cfm 060= 600 cfm 080= 800 cfm 100 = 1000 cfm 120 = 1200 cfm

Digit 8 — Unit Voltage

1 = 115 V/60 Hz/1 PH 2 = 208 V/60 Hz/1 PH 3 = 277 V/60 Hz/1 PH 4 = 230 V/60 Hz/1 PH 5 = 208 V/60 Hz/3 PH 6 = 230 V/60 Hz/3 PH 7 = 480 V/60 Hz/3 PH 8 = 115 V/50 Hz/1 PH (SOS ONLY) 9 = 220-240 V/50 Hz/1 PH A = 220-240 V/50 Hz/3 PH B = 380-415 V/50 Hz/3 PH

Digit 9 — Piping System / Placement

A = Without pipe, RH, Without

auxiliary

B = Without pipe, LH, Without

auxiliary C = Without pipe, RH, With auxiliary D = Without pipe, LH, With auxiliary

E = Without pipe, RH, Without

auxiliary, Extended end

F = Without pipe, LH, Without

auxiliary, Extended end

G = Without pipe, RH, With auxiliary,

Extended end

H = Without pipe, LH, With auxiliary,

Extended end J = With pipe, RH K = With pipe, LH L = With pipe, RH, Extended end M = With pipe, LH, Extended end N = Without pipe, RH, With auxiliary,

Extended end pipe and control

side P = Without pipe, LH, With auxiliary,

Extended end pipe and control

side Q = With pipe, RH, With auxiliary,

Extended end pipe and control side

R = With pipe, LH, With auxiliary,

Extended end pipe and control

side

Digits 10, 11 — Design Sequence

***= Factory assigned AW = AW design

Digit 12 — Inlet Style

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 exposed fan H = Back stamped louver J = Top duct collar K = Exposed fan L = Bottom filter

Digit 13 — Outside 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 = Economizer, Bottom

opening H = Economizer, Back opening J = Auto, Economizer, Top opening K = No damp, Bottom opening L = No damp, Back opening M = No damp, Top opening

Digit 14 — Outlets Style

A = Front duct collar B = Front bar grille C = Front stamped louver D = Front quad grille E = Bottom duct collar F = Bottom stamped louver G = Top quad grille H = Top bar grille J = Top duct collar K = Bottom bar grille

Digit 15 — Paint Cabinet Color

0 = None (Not painted unit) 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 A = Locking panel B = Keylock access door C = Locking panel, Keylock access

door, Secure grille D = Leveling feet E = Locking panel with

leveling feet

F = Keylock door with

level feet

G = Locking panel, Key access door,

Secure grille, Leveling feet

Digit 17 — Motor Types

A = Free discharge B = High static

Digit 18 — Main 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 or heating

only

H = 3-row cooling only or heating

only

J = 4-row cooling only or heating

only

K = 2-row cooling/heating, Electric

heat L = 3-row cooling/heating, Electric

heat M = 4-row cooling/heating, Electric

heat N = Electric heat only, 1 stage P = 2-row cooling/heating, 1-row

heating

Q = 2-row cooling/heating, 2-row

heating

R = 3-row cooling/heating, 1-row

heating U = Electric heat only, 2 stage V = Electric heat, Low kW, 1 stage W = Steam coil X = 2-row cooling only, Electric

heat

Y = 3-row cooling only, Electric

heat

Z = 4 -row cooling only, Electric

heat

1 = 3-row cooling, 1-row heating

with high capacity

2 = 3-row cooling/

heating, 1-row heating with high capacity

3 = Heat pump

UNT-SVX07J-EN 5

Model Number Descriptions

4 = Heat pump, Auxiliary electric

heat 5 = DX cooling 6 = DX cooling, Electric preheat

Digit 19 — Drain Pan

0 = None - Electric heat only 3 = Polymer drain pan 4 = Stainless steel drain pan

Digit 20 — Air Vent

0=None A = Automatic M= Manual

Digits 21, 22, 23 — Electric Heat kW

000 = None 010 = 1.0 kW (0.75 kW 208 V) 015= 1.5 kW (1.1 kW 208 V) 020= 2.0 kW (1.5 kW 208 V) 025= 2.5 kW (1.9 kW 208 V) 030= 3.0 kW (2.2 kW 208 V) 040= 4.0 kW (3.0 kW 208 V) 045= 4.5 kW (3.3 kW 208 V) 050= 5.0 kW (3.7 kW 208 V) 060= 6.0 kW (4.4 kW 208 V) 070= 7.0 kW (5.3 kW 208 V) 075= 7.5 kW (5.7 kW 208 V) 080= 8.0 kW (6.0 kW 208 V) 090= 9.0 kW (6.6 kW 208 V) 100 = 10.0 kW (N/A 208 V) 105= 10.5 kW (7.9 kW 208 V) 110 = 11.0 kW (9.0 kW 208 V) 120= 12.0 kW (N/A 208 V) 135= 13.5 kW (10.2 kW 208 V) 150= 15.0 kW (N/A 208 V) 180= 18.0 kW (13.5 kW 208 V) 200= 20.0 kW (15.0 kW 208 V) 200= 21.0 kW (15.0 kW 208 V) 220= 22.0 kW (16.4 kW 208 V)

Digit 24 — Reheat Coil

0 = Without reheat A = Steam reheat (4 FPI) B = Hot water reheat (4 FPI) D = High capacity hot water reheat

(12 FPI)

Digit 25 — Unit Mounted Disconnect Switc h

0=None D = With disconnect switch

Digit 26 — Filter Type

0=None 1 = 1-in. throwaway 2 = 1-in. throwaway MERV 8 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 B = 1-in. throwaway MERV 13,

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

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

three extras 6 UNT-SVX07J-EN

Digit 27 — Future Option

0=None

Digit 28 — Future Option

0=None

Digit 29 — Piping Packages

0=None A = Basic - Ball valve supply and

B = Basic - Ball valve supply and E = Deluxe - Ball valve supply and F = Deluxe - Ball valve supply and

return manual circuit setter return manual circuit setter return return with auto flow

Digit 30 — Control Type

A = Fan speed control E = Tracer® ZN010 F = Tracer® ZN510 G = Tracer® ZN520 H = Customer Supplied Terminal -

STAT Interface (CSTI) L = Tracer® UC400-B M = Tracer® UC400-B with

N = CSTI with fan status

Wireless Communications Interface (WCI)

Digit 31 — Control Options

0=None V = Unit-mounted zone sensor

module (OALMH and Setpoint

dial) W = Wall-mounted zone sensor

X = Unit-mounted fan mode switch,

Y = Unit-mounted fan mode switch,

Z = Unit-mounted zone sensor

1 = Wall-mounted zone sensor

2 = Wall-mounted zone sensor

4 = Wall-mounted digital zone

6 = Wireless zone sensor (Setpoint

7 = Wireless display sensor, Unit8 = Unit-mounted variable speed 9 = Wall-mounted variable speed

module (OALMH and Setpoint dial)

Wall-mounted zone sensor

(Setpoint dial)

Wall-mounted zone sensor

(Setpoint dial, On/CANCEL,

Comm. jack)

module (OALMH, Setpoint dial, On/CANCEL buttons)

module (On/CANCEL buttons,

Comm. jack)

module (OALMH, Setpoint dial, On/CANCEL, Comm. jack)

sensor (O/A/H/M/L, Setpoint dial,

On/CANCEL, Comm. jack)

dial, Occupied/Unoccupied buttons)

receiver (OALMH) control control

Digit 32 — IAQ Options

0=None 1 = Dehumidification 2 = VOC/CO 3 = Dehumidification and VOC/CO 4 = Dehumidification with sensor

5 = Air-Fi® Dehumidification and 6 = Air-Fi® Dehumidification with 7=Air-Fi® CO

VOC/CO sensor

Digit 33 — FLA Motor Options

0 = Standard ECM A = Reduced FLA

Digit 34 - Control Options

0 = None A = Low limit sensor B = Condensate overflow C = Low limit and condensate

overflow

Digit 35 — Main Valve Type

0=None A = 2-way, 2-position N.C B = 2-way, 2-position N.O C = 3-way, 2-position N.C D = 3-way, 2-position N.O E = 2-way, Modulating F = 3-way, Modulating G = 2-way, Analog (2-10 VDC) H = 3-way, Analog (2-10 VDC) J = Field supplied, 2-position N.C K = Field supplied, 2-position N.O L = Field supplied, Modulating M = Field supplied, Analog (2-10

VDC)

Digit 36 — Cv Main Valve

0=None A = 2-way 1.4 Cv B = 2-way 2.4 Cv C = 2-way 3.4 Cv D = 3-way 1.0 Cv E = 3-way 2.7 Cv F = 3-way 4.6 Cv

Digits 37 — Auxiliary Valve Type

0=None A = 2-way, 2-position N.C. B = 2-way, 2-position N.O. C = 3-way, 2-position N.C. D = 3-way, 2-position N.O. E = 2-way, Modulating F = 3-way, Modulating G = 2-way, Analog (2-10 VDC) H = 3-way, Analog (2-10 VDC) J = Field supplied, 2-position N.C. K = Field supplied, 2-position N.O. L = Field supplied, Modulating

M = Field supplied, Analog (2-10

VDC)

Digits 38 — Cv Auxiliary Valve

0=None A = 2-way 1.4 Cv B = 2-way 2.4 Cv C = 2-way 3.4 Cv D = 3-way 1.0 Cv E = 3-way 2.7 Cv F = 3-way 4.6 Cv

Model Number Descriptions

Digit 39 — Recessed Options

0=None A = 5/8 in. standard recessed panel 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 Auto Flow GPM

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

Digit 41 — Auxiliary Auto Flow GPM

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

Digit 42 — Subbases

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

Digit 43 — Recessed Flange

0=None A = With recessed flange

Digit 44 — Wall Box

0=None A = Clear anodized

UNT-SVX07J-EN 7

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 = Fan Coil

Digit 3 — Unit Model Type

K = Low vertical concealed L = Low vertical cabinet

Digit 4 — Development Sequence

B = Development B

Digit 5, 6, 7— Unit cfm

030= 300 cfm 040= 400 cfm 060= 600 cfm

Digit 8 — Unit Voltage

1 = 115 V/60 Hz/1 PH 2 = 208 V/60 Hz/1 PH 3 = 277 V/60 Hz/1 PH 4 = 230 V/60 Hz/1 PH

Digit 9 — Piping system placement

C = Without piping, Right hand, With

aux drain pan

D = Without piping, Left hand, With

aux drain pan

J = With piping, Right hand, With

aux drain pan

K = With piping, Left hand, With

aux drain pan

Digit 10, 11— Design Sequence

** = Factory assigned

Digit 12 — Inlet

A = Front toe space B = Front bar grille

Digit 13 — Outside Air Damper

0=None B = Manual, Back opening E = Auto, 2-position, Back

opening

Digit 14 — Outlet

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

Digit 15 — Unit Color

0=None 1 = Deluxe beige 2=Soft dove 3=Cameo white 4 = Driftwood grey 5 = Stone grey 6=Rose mauve 7 = To be selected later

Digit 16 — Tamperproof Locks/ Leveling Feet

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

leveling feet

Digit 17 — Coil Type

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 K = 2-row cooling/heating, Electric

P = 2-row cooling/heating, 1-row Q = 2-row cooling/heating R = 3-row cooli ng/heating,1-row X = 2-row cooling only, Electric heat

heat heating heating heating

2-row

Digit 18 — Air Vent (Coil)

0=None A=Auto M= Manual

Digit 19, 20, 21 — Electric Heat kW

000= None 010 = 1.0 kW (0.75 kW 208 V) 015= 1.5 kW (1.1 kW 208 V) 020= 2.0 kW (1.5 kW 208 V) 025= 2.5 kW (1.9 kW 208 V) 030= 3.0 kW (2.2 kW 208 V) 040= 4.0 kW (3.0 kW 208 V)

Digit 22 — Reheat

0=None C = Electric Heat (N/A)

Digit 23 — Disconnect Switch

0=None D = With disconnect switch

Digit 24 — Filter Type

0=None 1 = 1 in. throwaway filter

Digit 25 — Future Option

0=None

Digit 26 — Future Option

0=None

Digit 27 — Piping Packages

0=None A = Basic - Ball valve supply and

B = Basic - Ball valve supply and E = Deluxe - Ball valve supply and F = Deluxe - Ball valve supply and

return manual circuit setter return manual circuit setter return return with auto flow

Digit 28 — Control Type

0=None A = Fan speed switch D = Tracer®ZN010 E = Tracer® ZN510

F = Tracer® ZN520 H = Customer Supplied Terminal -

STAT Interface L = Tracer® UC400-B M = Tracer® UC400-B with Wireless

Communications Interface

(WCI) N = CSTI with fan status P = Tracer® UC400-B - WCI and CO

Digit 29 — Control Options

0=None V = Unit-mounted zone sensor

module (OALMH and Setpoint

dial) W = Wall-mounted zone sensor

module (OALMH and Setpoint

dial) X = Unit-mounted fan mode switch,

Wall-mounted (Setpoint dial) Y = Unit-mounted fan mode switch,

Wall-mounted zone senor

(Setpoint dial, ON/CANCEL,

Comm. jack) Z = Unit-mounted zone sensor

module (OALMH, Setpoint dial,

ON/CANCEL buttons) 1 = Wall-mounted zone sensor

module (ON/CANCEL buttons,

Comm. jack) 2 = Wall-mounted zone sensor

module (OALHMH, Setpoint dial,

ON/CANCEL, Comm. jack) 4 = Wall-mounted digital zone

sensor (OALMH, Setpoint,

ON/CANCEL, Comm. jack) 6 = Wireless zone sensor (Setpoint

dial, Occupied/Unoccupied

buttons) 7 = Wireless display sensor, unit

receiver (OALMH) 8 = Unit-mounted variable speed

control 9 = Wall-mounted variable speed

control

Digit 30 — IAQ (N/A)

0=None 1 = Dehumidification 3 = Polymer drain pan 4 = Stainless steel drain pan

Digit 31 — FLA Motor Option

0 = Standard ECM A = Reduced FLA

Digit 32 - Control Option

0 = None A = Low limit sensor B = Condensate overflow C = Low limit and condensate

Overflow

Digit 33 — Main Valve Type

8 UNT-SVX07J-EN

Model Number Descriptions

K = Field supplied, 2-position N.O. L = Field supplied, Modulating M = Field supplied, Analog (2-10

Digit 34 — Cv Main Valve

0=None A = 2-way 1.4 Cv B = 2-way 2.4 Cv C = 2-way 3.4 Cv D = 3-way 1.0 Cv E = 3-way 2.7 Cv

Digits 35 — Auxiliary Valve Type

0=None A = 2-way, 2-position N.C. B = 2-way, 2-position N.O. C = 3-way, 2-position N.C. D = 3-way, 2-position N.O. E = 2-way, Modulating F = 3-way, Modulating G = 2-way, Analog (2-10 VDC) H = 3-way, analog (2-10 VDC) J = Field supplied, 2-position N.C. K = Field supplied, 2-position N.O. L = Field supplied, Modulating M = Field supplied, Analog (2-10

Digits 36 — Cv Auxiliary Valve

0=None A = 2-way 1.4 Cv B = 2-way 2.4 Cv C = 2-way 3.4 Cv D = 3-way 1.0 Cv E = 3-way 2.7 Cv

Digit 37 — Main Auto Flow GPM

0=None A = 0.75 B=1.0 C=1.5 D=2.0 E=2.5 F=3.0 G=3.5 H=4.0 J=4.5

Digit 38 — Auxiliary Auto Flow GPM

0=None A = 0.75 B=1.0 C=1.5 D=2.0 E=2.5 F=3.0 G=3.5 H=4.0 J=4.5

VDC)

UNT-SVX07J-EN 9

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 gauge 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 cooli ng and heating, and are available as two-pipe, with or without electric 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.

variable speed switch option, which ships separately, comes with a low voltage (24 volt AC) transformer.

The Tracer® ZN010, ZN510, ZN520, and UC400-B controllers are included inside the units control box assembly . These contr olle rs 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 variable 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)

10 UNT-SVX07J-EN

Pre-Installation

WARNING

Hazardous Vo ltage 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. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manuf a cturer’s literature f or allowable waiting periods for discharge of capacitors. V e r ify with an appropr iate v oltmeter that all capacitors have discharged.

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 the Receiving Checklist section below for detailed instructions.

Note: Delivery cannot be refused. All units are shipped

F.O.B. factory. Trane 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.

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 properly locate the unit in the floor plan. If specified, the un it will ship with tagging designated by the customer.

Handling

Receiving Checklist

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

 Check to ensure that the sh ipment is co mplete. Small

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

 Check all units, components , connections, and piping.

Check fan wheel for free rotation by spinning manually. Chec k all doors, latches 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 indications of shipping damage. Tighten loose connections.

 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 should the unit be left unprotected from the elements.

T r ane recommends leaving units and acces sories in their shipping packages/skids for protection and handling ease until installation. Remove the skid s before placing the unit in its permanent location.

UNT-SVX07J-EN 11

Microbial Growth! (1 of 2)

Wet interior unit insulation can become an amplification site for microbial growth (mold), which could result in odors an d damage t o the equipment and building materials. If there is evidence of microbial growth on the int erior insulation, it should be removed and replaced prior to operating the system.

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

NOTICE:

Pre-Installation

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!

To prevent corrosion damage or wet stains, use only canvas tarps to cover air handlers. Plastic tarps can cause condensation to form in and on the equipment.

• 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 the Dimensions and Weights chapter for approximate section weights; refer to the unit submittals for actual weights).

• Allow sufficient space for adequate free air and necessary service access as shown in the Dimensions and Weights chapter. Refer to submittals for specific minimums.

• Allow one and one half fan diameters above the unit 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,” p. 55.

• 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 (z ero tolerance) in both horizontal axis.

NOTICE:

Microbial Growth! (2 of 2)

Failure to follow instructions below could result in odors and damage to the equipment and building materials.The floor or foundation must be level and the condensate drain at the proper height for proper coil drainage and condensat e flow. Standing water and wet surfaces inside the equipment can become an amplification site for microbial growth (mold).

• 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 submit tal 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 from the front). Th e control panel is always on the end opposite the piping.

• The fan board assembly and main drain pan are easily removable for cleaning. See the Routine Maintenance chapter for more details on servicing.

12 UNT-SVX07J-EN

Dimensions and Weights

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 B Vertical Cabinet Model L Low Vertical Cabinet

Model D Horizontal Cabinet

Model C Horizontal Concealed Model E Horizontal Recessed

8.5 in.

both sides

12 in.

both sides

28 in.

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 bot tom panels to

Figure 2. Recommende d serv i c e clearances for vertical units

allow access into the unit. See the figures below for recommended service and operating clearances.

Figure 3. Recommended serv ice clearances for horizontal units

UNT-SVX07J-EN 13

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

Volu me (g al .)

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 Refrigerant volume (cubic in.) 3-Row ---- ---- ---- 76.23 97.02 143.22 --- 4-Row ---- ---- ---- ---- ---- ---- 191.73 Fins per inch

2-Row 12121212121212

3-Row 12 12 12 12 12 12 12 3/1-Row high capacity 16 16 16 16 16 16 16

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 Volu me (g al .) 0.12 0.12 0.15 0.22 0.28 0.42 0.42 Standard Capacity in. High-Capacity 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

(a) Standard 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

(a)

Fins/

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 Volu me (g al .)

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.

14 UNT-SVX07J-EN

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-SVX07J-EN 15

Dimensions and Weights

Top V i e w

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

3 3/8 in.

5 5/16 in.

1 in.

Top Outlet Duct Collar

Bottom View

Front View RH Piping

Side View

Front View LH Piping

Power wiring

bottom

only

Power wiring

bottom

and side

Electric heat only Non-electric heat only

1 3/32 in. KO

7/8 in. KO

6 1/2 in.

Back

Front

1 3/8 in.

2 7/8 in.

Front

1 in.

2 5/8 in.

Detail A Detail B

Back

6 1/4 in.

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.

Coil connections

Auxiliary

drain pan

1 1/8 in.

Control box

Aux box ((EH only)

Junction box (non EH only)

Filters

3/4 in.

(2) 5/8 in. Bolt hole

7/8 in. KO

Control wiring

Control

box

Junction box

(non EH only)

Auxiliary

control box

(electric heat only)

10 in.

6 7/8 in.

See Detail A and B

for Field power

connnections

6 15/16 in. E

6 7/16 in.

9/16 in.

4 7/16 in.

Front inlet

open

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.

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

Model A Vertical Concealed

Figure 5. Model A Vertical Concealed

16 UNT-SVX07J-EN

Dimensions and Weights

Ta ble 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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 17

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

(2) 5/8 in. bolt holes

6 in.

6 in.B

(4) 5/8 in. dia keyslot

hanger holes

7/8 in. KO

Control

wiring

Front View RH Piping

Auxiliary

control box

optional

5 1/4 in.

6 11/16 in.

Front inlet

open or bar grille

4 7/16 in.

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

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

Power wiring bottom only

2 7/8 in.

1 3/8 in.

7/8 in.

1 3/32 in.

Bottom View

Power wiring

bottom

and side

7/8 in.

6 1/4 in.

6 1/2 in.

Back

Front

1 in.

2 5/8 in.

Front

Back

DETAIL A

Electric heat only

DETAIL B

Non-electric heat only

G Optional double extended end pocket

8 in.

See Detail A and Detail B

for field power

connections

Junction box

(non-EH only)

Auxiliary box (EH only)

Junction box (Non-EH only)

Model B Vertical Cabinet

Figure 6. Model B vertical cabinet

18 UNT-SVX07J-EN

Dimensions and Weights

Table 4. Model B Vertical cabinet unit dimensions (inches)

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 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 83 5/16

G 49 5/16 54 5/16 63 13/16 72 5/16 n/a

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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 19

Dimensions and Weights

Top V i e w

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

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

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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

20 UNT-SVX07J-EN

Dimensions and Weights

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

Unit Size 200-300 400 600 800 1000-1200

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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 21

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

22 UNT-SVX07J-EN

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 the Coil Connections

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

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 23

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

24 UNT-SVX07J-EN

Dimensions and Weights

Ta ble 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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 25

Dimensions and Weights

Top V i e w

Bottom View

Front View RH Piping

Side View

Front View LH Piping

Unit control

top

Top outlet quadrifuser

or bar grille

Detail A Detail B

Power wiring

bottom

only

1 3/32 in. KO

7/8 in. KO

Power wiring

bottom

and side

7/8 in. KO

Back

Front

Back

Front

6 1/4 in.

1 3/8 in.

2 7/8 in.

6 1/2 in.

1 in.

2 5/8 in.

Electrical heat only Non electric heat only

10 5/16 in.

Air flow

1 1/4 in.

4 in.

Bottom inlet louvers

6 in. B

6 in.

7 in.

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

(2) 5/8 in.

Bolt holes

Front outlet louvers

(optional)

Front inlet louvers

Junction box

(non EH only)

Auxiliary control box

(electric heat only)

5 1/4 in.

Control

box

8 5/16 in.

See Detail A and B

for Field power

connections

Bottom and front

inlet and outlet louvers

8 9/16 in.

26 13/16 in.

15 1/2 in.

1 5/8 in.

Coil connections

7/8 in. KO

Control wiring

Control

box

1 1/8 in.

Filters

Auxiliary box (EH only)

Junction Box (non EH only)

Model F Vertical Wall Hung Cabinet

Force Flo Units Only

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

26 UNT-SVX07J-EN

Dimensions and Weights

Table 8. Model F Vertical wall hung cabinet unit dimensio ns (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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 27

Dimensions and Weights

Top V i e w

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

28 UNT-SVX07J-EN

Dimensions and Weights

Ta ble 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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 29

Dimensions and Weights

Top V i e w

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. KO

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

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

10 in.

Side View

Air flow

24 7/8 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.

Bottom View

Back

Front

Power

wiring

bottom

and side

7/8 in. KO

6 1/2 in.

1 in.

2 5/8 in.

DETAIL A

Electric heat only

DETAIL B

Non-electric heat only

Front View

RH Piping

6 in. B

6 in.

Auxiliary

control box

(electric heat only)

5 1/4 in.

6 11/16 in.

Control

box

Front inlet

open or bar grille

7 in.

8 in.

F Optional extended end pocket

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

(2) 5/8 in. bolt holes

15 1/2 in.

6 15/16 in.

5 1/16 in.

1 5/8 in.

Front outlet louvers

(optional)

8 in.

See Detail A and Detail B

for field power

connections

G Optional double extended end pocket

Junction box

(non-electric heat only)

Model J Vertical Slope Top Cabinet

Figure 12. Model J Vertical Slope Top

30 UNT-SVX07J-EN

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

G 49 5/16 54 5/16 63 13/16 72 5/16 n/a

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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 31

Dimensions and Weights

Top V i e w

(2) 5/8-in. dia Keyslot

hander holes

9 1/4 in.

Power wiring

bottom only

3 in. x 3 in.

opening

8 5/16 in.

1 1/16 in.

Top outlet duct collar

6 1/4 in.

6 in.

11 5/8 in. HR

10 3/4 in. HS

9 5/8 in. CR

8 5/16 in. CS

Side

View

9 3/16 in.

6 7/8 in.

9 3/16 in.

8 11/16 in.

Right hand coil connections

shown. Left hand connection

locations are mirror image.

14 1/2 in.

16 in.

5/8 in. duct collar

14 9/16 in.

1 15/16 in.

2 in.

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

14 in.

1 5/16 in.

15 1/8 in.

13 1/4 in.

Filters

Airflow

Front View RH Piping

7/8 in.

7/8 in. KO

Control wiring

1 13/16 in.

7/8 in.

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

3 9/16 in.

7 1/4 in.

3 1/4 in.

6 7/16 in.

10 3/4 in.

Front inlet

open

Main

power

access

Control

box

12 3/16 in.

9/16 in.

1 1/8 in.

Front View

LH Piping

Coil connections

Auxiliary

drain pan

Control

box

CS Cooling coil supply CR Cooling coil return HS Heating coil supply HR Heating coil return

Model K Low Vertical Concealed

Figure 13. Model K Low Vertical Concealed

32 UNT-SVX07J-EN

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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions. Serviceability for some components within this unit may require panel or drain pan removal.

UNT-SVX07J-EN 33

Dimensions and Weights

11 5/8 in. HR

10 3/4 in. HS

9 5/8 in. CR

8 5/16 in. CS

9 3/16 in.

6 7/8 in.

9 3/16 in.

8 11/16 in.

Right hand coil connections shown.

Left hand connection locations

are mirror image.

HR-heating coil return

HS-heating coil supply

CR-cooling coil return

CS-cooling coil supply

Main drain connection for

7/8 in. OD copper tube and clamp

Air flow

14 9/16 in.

1 15/16 in.

2 in.

14 1/2 in.

1 5/16 in.

Filters

9 11/16 in.

Power wiring

bottom

only

7/8 in. KO

6 7/8 in.

1 1/8 in.

Coil connections

Auxiliary

drain pan

Control

box

Front View

LH Piping

Front View

RH Piping

7/8 in.

7/8 in. KO Control wiring

1 13/16 in.

(2) 5/8 in dia Keyslot hanger holes

Control box

Main power

access

Bottom of

control box

2 11/16 in.

Front inlet bar grille

3 1/4 in.

6 7/16 in.

11 5/16 in.

13 3/16 in.

Top V i e w

(2) 5/8 in. dia Keyslot

hanger holes

10 15/16 in.

(4) Unit leveling devixces

(optional)

10 15/16 in.

4 7/16 in.

8 1/2 in.

Unit control

top

C CD

Top outlet quadrifuser

or bar grille

Side View

Model L Low Vertical Cabinet

Figure 14. Model L Low vertical cabinet

34 UNT-SVX07J-EN

Dimensions and Weights

Ta ble 12. Model L 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 the Coil Connections

UNT-SVX07J-EN 35

Dimensions and Weights

Model M Inverted Vertical Cabinet

Force-Flo Unit Only

Figure 15. Model M inverted vertical cabinet (Force-Flo unit only)

Top Vie w

Unit control

top

Front View RH Piping

See Detail A and B

for Field power connections

7 5/16 in.

5 1/4 in.

Auxiliary control box

(electric heat only)

Junction box

(non electric heat only)

Front View LH Piping

Top outlet quadrifuser

GHG

Control

box

7 1/8 in.

6 in.

or bar grille

Front inlet and

outlet louvers

Top inlet duct collar

(optional)

Bottom outlet

duct collar (optional)

Junction box (Non EH only)

Auxiliary box (EH only)

7 1/8 in.

6 in.

Bottom View

Power wiring

bottom

only

1 3/8 in.

2 7/8 in.

Side View Inlet and outlet

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

15 1/2 in.

1 5/8 in.

3 11/16 in.

(2) 5/8 in. bolt holes

Front

28 3/4 in.

Power wiring

bottom

and side

6 1/2 in.

1 in.

2 5/8 in.

7/8 in. KO

10 5/16 in.

4 in.

Air flow

6 in.

1 3/32 in. KO

7/8 in. KO

6 1/4 in.

Detail A Detail B

Electric heat only Non electric heat only

options

BackBack

Front

Top inlet duct collar

3 11/16 in.

26 13/16 in.

2 5/8 in. Bottom inlet duct collar

Filters

Control

box

Coil connections

1 1/8 in.

36 UNT-SVX07J-EN

Dimensions and Weights

Ta ble 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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 37

Dimensions and Weights

Top Vie w

Front View RH Piping

Side View

Front View LH Piping

Bottom View

9 3/4 in.

5/8 in.

25 1/4 in.

Air flow

Power

wiring

bottom

only

Power wiring

bottom

and side

7/8 in. KO

Back

Front

Non electric heat onlyElectric heat only

Detail A Detail B

Back

Front

1 3/8 in.

2 7/8 in.

1 in.

2 5/8 in.

6 1/2 in.

6 1/4 in.

1 3/32 in. KO

7/8 in. KO

1 in. Wall opening

4 15/16 in.7 in.

See Detail A and B for Field power connections

4 15/16 in.

15 3/8 in.

Front control access (optional)

1 1/8 in.

Control

box

Coil connections

Filters

3/4 in.

1 3/4 in.

3/4 in.

1 3/4 in.

6 5/8 in.

Auxiliary box

(EH only)

Junction box

(non EH only)

Control

box

7/8 in. KO

Control

wiring

6 15/16 in.

(2) 5/8 in. Bolt holes

H Wall opening

E Front panel

1 in.

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

Front outlet louvers

1 5/8 in.

2 1/8 in.

Wall

opening

Front

panel

15 12 in.

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

5 7/8 in.

Model N Inverted Vertical Recessed

Force-Flo Unit Only

Figure 16. Model N inverted vertical recessed (Force-Flo unit only)

38 UNT-SVX07J-EN

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 the Coil Connections

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

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

UNT-SVX07J-EN 39

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 17. Model P Compact Concealed

40 UNT-SVX07J-EN

Dimensions and Weights

8 3/16 in. RHS

5 5/16 in. CS

4 7/8 in. RHR

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

23 1/4 in.

RHR

19 15/16 in.

RHS

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 the Coil Connections

section for locations. All duct collar dimensions are to the outside of the collar. See the Fresh Air Openings Locations section for dimensions.

Coil Connections

Fan Coil Vertical Units

Figure 18. Coil connections for fan coil vertical units

UNT-SVX07J-EN 41

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.

RHS

Horizontal Cabinet

RHR

RHS

20 9/16 in. RHS

23 7/8 in. RHR

2 5/16 in. HR

4 in. HS

Fan Coil Horizontal Units

Figure 19. Coil connections for fan coil horizontal units

42 UNT-SVX07J-EN

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 20. Coil connections for Force Flo cabinet heater vertical units

Dimensions and Weights

UNT-SVX07J-EN 43

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 21. Coil connections for Force Flo cabinet heater horizontal units and inverted vertical units

44 UNT-SVX07J-EN

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 V i e w

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

Table 16. Fresh air opening dimensions (inches) 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-SVX07J-EN 45

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

Table 17. Fresh air opening dimensions (inches) for v e rtical units

46 UNT-SVX07J-EN

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

Wall Box

Figure 24. Wall box

1/8 in.

1/2 in.

Dimensions and Weights

Continuous mortar ribs top and bottom

1/8 in.

1/2 in.

3/4 in.

1 3/8 in.

4 in.

Clearance for drainage

Continuous drip lip top and bottom

1/8 in.

Woven aluminum insect screen

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

5/8 in.

Table 18. Wall box dimensions (inches)

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

UNT-SVX07J-EN 47

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

Dimensions and Weights

Projection Panel

Figure 25. Projection panel

Unit chasis end panel

Front View ISO

2 in. min. 6 in. max.

Projection panel

7/8 in.

Rear view ISO

Finished wall

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

48 UNT-SVX07J-EN

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 co mplete. For more detailed information, refer to the appropriate sections in this manual.

WARNING

Hazardous Vo ltage w/Capacitors!

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

Inspect the unit for shipping damage.

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 f or pr oper oper ation. Do not use the coil or drain pan as the ref er ence point because the coil ma y be pitched and the drain pan has an inherent positive slope to provide proper drainage.

6. Complete all piping connections correctly.

7. Check field sweat connections for leaks and tighten the valve stem packing, 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 oneinch drop per ten feet of pipe.

11. Install entering water temperat ure senso r 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 wallmounted fan mode switch or zone sensor per the wiring schematic and guidelines established in

“Interconnection Wiring,” p. 60.

16. Install the wall-mounted fan mode switc h, or zone sensor module options properly.

For wireless zone sensors, be sure to set the address (see “Address Setting,” p. 95).

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.

UNT-SVX07J-EN 49

Installation—Mechanical

Installing the Unit

Follow the procedures below to install the unit properly. Refer to for specific unit dimensions and mounting hole locations.

Note: Any modifications, additions or changes to the

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

Vertical Units

NOTICE:

Electrical Wiring!

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

Note: Any modifications, additions or changes to the

control box could void the factory warranty 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 holes 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, consideration should be given for units with an outside air intake.

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

3. Mar k the position of the hanger holes on the wall according to the dimensions given in the Dimensions and Weights chapter for each unit model and 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 connections, in addition t o

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 top eng aging edge of the front panel to lap over the engaging edge of the unit. This 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!

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

Horizontal Units

Install horizontal units suspended from the ceili ng using the four 5/8-inch diam eter 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 Na tional Fire Protection

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

1. Prepare the ceiling opening 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 the Dime nsions and Weights chapter.

3. On cabinet units, remove the bottom panel by using a 5/32-inch Al len wren ch 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.

50 UNT-SVX07J-EN

Installation—Mechanical

Horizontal recessed unit (front discharge unit shown)

0.25-20 x 0.50 in. retaining screw

See notes

0.25-20 x 3.50 in. mounting bolt

Trim ring assembly

S-hook

Retaining ring

Bottom panel door

Panel brackets

1 in. x 1 in. open cell insulation

Expansion collar assembly (See notes)

Typical opposite side

Angle bracket (2)

See notes

S-hook

Tinnerman clips

Cabinet Units

Install the bottom panel by p lacing the hinged end o n the unit’s hinged end (always at the return end of the unit). Refer to the Dimensions and Weights chapter 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 the Dimensions and Weights c hapter for mounting locations and unit weights. Follow the procedure below and see the figure below.

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 (onl y 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 chain assembly . Insert s-hooks through holes in unit and door. Close shook on door.

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

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

Figure 26. 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 3.5-inch 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.

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.

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-SVX07J-EN 51

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 W arm Air Heating and Air Conditioning Systems (NFPA 90B).

WARNING

Hazardous Vo ltage 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 from 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.

52 UNT-SVX07J-EN

Coil Piping and Connections

Figure 27. Piping package arrangements

Basic

2-way

Typical coil

2-way

Typical coil

2-way

Union

Typical coil

2-way

Union

2-way main or auxilliary water valve

P/T port

2-way main or auxilliary water valve

Strainer

Ball valve

Return connection

Ball valve

Supply connection

Basic with manual circuit setter

Circuit setter

Return connection

Ball valve

Supply connection

Deluxe with manual circuit setter

Circuit setter

Return connection

Ball valve

Supply connection

Deluxe with autoflow

P/T port

Ball valve

3-way

Typical coil

Typ ic a l coil

Union

Union Typical coil

Union

3-way main or auxilliary water valve

Balancing fitting

3-way main or auxilliary water valve

Balancing fitting

Ball valve

Supply connection

Return connection

Balance fitting

Ball valve

Supply connection

P/T port

Strainer

Ball valve

Return connection

Ball valve

Supply connection

Circuit setter

Return connection

Circuit setter

Union

Typical coil

P/T port

Autoflow

Strainer

Return connection

Ball valve

Supply connection

Union

Typical coil

Autoflow

Balancing fitting

P/T port

Strainer

P/T port

Ball valve

Supply connection

Return connection

Circuit setter

UNT-SVX07J-EN 53

Coil Piping and Connections

Piping Package Components

Control valves are mounted in all factory piping packages. All piping packages are factory installed and come in a variety of options:

• Basic: Shut-off ball valve on the supply line, control valve and shut-off ball valve on the return line.

• Basic with manual circuit setter: Shut-off ball valve on the supply line, control valve and manual circuit setter on the return line.

• Deluxe with manual circuit setter: Union, strainer , P/T port, and shut-off ball valve on the supply line. Union, control valve, and manual circuit setter on the return line.

• Deluxe with auto flow: Union, strainer, P/T port, and shut-off ball valve on the supply line. Union, control valve, auto flow valve, P/T port, and shut-off b all valve on the return line.

Hydronic 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. R efer 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 excessive 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 whe n 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 the Condensate Drain Connections section below 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 size 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.

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. Turn 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. Av o id 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.

/2-inch diameter lin e

54 UNT-SVX07J-EN

Coil Piping and Connections

Condensate Drain Connections

1. Connect a 3/4-inch I.D. rubber or plastic hose 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.

2. Slide the hose over the drain pan nipple and tighten the hose on the nipple with a hose clamp (installer supplied).

3. 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 straight from the drain pan a minimum distance of six i nches before making any turns. The installer must provide proper support for the drain line to prevent undue stress on the auxiliary drain pan.

4. Install a secondary overflow drain line if necessary by punching out the overflow drain nipple on the auxiliary drain pan. Next, place a 3/8-inch inside diameter 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,” p. 56 for more information.

Condensate Overflow Detection Device

The condensate overflow detection device is an option on fan-coil units with either a Tracer® ZN01 0, ZN510, ZN520, UC400-B, or the customer-supplied control interface. The float switch, mounting bracket, and coiled leads ship attach ed inside the piping end pocket 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 the figures below.

Figure 29. Condensate float switch installed in vertical

auxiliary drain pan

Entering Water Temperature Sensor

T wo-pipe changeover units with either the T racer® ZN01 0, ZN510, ZN520, and UC400-B and CSTI controls have an entering water temperature sensor that senses supply water temperature. On units with a factory piping package, the factory straps the entering water temperature sensor to the piping supply water pipe.

Tracer® Controls use entering water temperature sampling eliminating the need for entering water temperature sensor relocation. If there are problems sensing accurate temperature for non-flowing water, move entering water temperature sensor as far down the supply line as possible to get accurate water temperatures. See the figures below.

Figure 30. Attach the entering water temperature

sensor to the entering water pipe as shown for changeover to work properly

Figure 28. Condensate float switch installed in

horizontal auxiliary drain pan

UNT-SVX07J-EN 55

Coil Piping and Connections

Figure 31. Close-up view of the entering water

temperature 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 entering

water temperature 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 entering water temperature sensor upstream of the valve on the supply water pipe. When using field supplied twoway control valves, install the entering water temperature sensor in a location that will detect active water temperature. The unit must always be 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 panel. If the sensor extends beyond the unit c hassis, use shielded conductors to eliminate radio frequency interference (RFI).

Figure 32. Manual coil air vent with set screw

Figure 33. Manual coil air vent with Shrader fitting

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 the figures below. Perform the following steps to vent the coil after installing the unit.

1. Pressurize the building piping system with water an d vent any trapped air at system vents.

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 unplan ned condensation. T rane recommends field-insulation of the following areas to prevent potential condensate problems:

56 UNT-SVX07J-EN

Coil Piping and Connections

• Supply and return water piping connections

• Condensate drain lines and connections

• Fresh air intake duct connections

• Discharge duct conn ect ion s

• Wall boxes

Balancing Manual Circuit Setter Valve

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

Figure 34. Manual circuit setter valve

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.

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

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

1 . Establish water flow through the coil. P erform an open

override of the v alve 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-position, normally op en 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, lift off the actuator and turn the valve stem. Actuator can be used to turn the valve stem.

2. For presetting, use the appropriate valve curve shown in Figure 35, p. 57 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.

Note: Instructions for using this chart appear on the

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

UNT-SVX07J-EN 57

Coil Piping and Connections

Valve and Actuator Operation

• T wo position actuators are different for normally open (N.O) and normally closed (N.C) and are capacitor discharge return.

• Valve operation is the same.

• All actuators are clockwise to close and counterclockwise to open with wire harness facing you and looking at the top of the actuator.

Table 22. Valve stroke time (continued)

Valve Selection

1/2 in. 3-way 2.7 Cv No end stop 75

3/4 in. 3-way 4.6 Cv No end stop 75

End Stop Position

Stroke Time (Seconds)

Field-Set Flow Capacity Adjustment

• If a different Cv is required, align the clip to the notch scale found on the underside of the actuator to the

Valve Stroke Time

Table 22. Valve stroke time

Valve Selection

1/2 in. 2-way 1.4 Cv No end stop 75

1/2 in. 2-way 2.4 Cv 5 55

3/4 in. 2-way 3.4 Cv 6 62

1/2 in. 3-way 1.0 Cv No end stop 75

End Stop Position

Stroke Time (Seconds)

corresponding Cv in the table below.

• For 3-point floating, control signals adjust the controller stroke time parameter to match the stroke time of the final clip position.

• For all 3-way valves, the stroke time is 75 seconds and there is no end stop on the actuator.

• The Cv can not be changed for 3-way valves.

Table 23. Actuator clip setting

2-way Valve Body 1 2 3- 3+ 4 4+ 5 5+ 6 N No End Stop

1/2 in. Z2050QS-F Cv 0.1 0.2 0.4 0.6 0.8 1.2 1.4(a)

1/2 in. Z2050QS-J Cv 0.5 0.7 1.2 1.7 2.4

3/4 in. Z2075QS-K Cv 0.5 1 1.5 2.3 3.3 4.6 6.6 9.8

Stroke time (seconds) 30 37 41 43 49 51 55 58 62 68 75

(a) This Cv shows the standard Cv offering for 2-way valves.

(a)

3.4(a) 4.8 5.9

Figure 36. Cv adjustments

Notice

Coil Damage!

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

58 UNT-SVX07J-EN

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

1 . Making piping connections to the steam coil as shown

in the figure below. Cap the unused connections.

Figure 37. Main steam coil connection diagram

d. Always install strainers as close as possible to the

trap inlet side. See the following figure for an example of a properly piped steam coil.

Figure 38. Typical piping for steam coils

Vacuum breaker (if desired)

Steam supply

Plugged

Condensate return

2. The coil is already pitched within the unit to provide proper pitch to drain co ndensate out of the coil. Verify 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.

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 drain the steam mains or take-off through the

Table 24. 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

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 eac h 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.

UNT-SVX07J-EN 59

Installation - Electrical

Note: Any modifications, additions or changes to the

control box could void the factory warranty 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 attached 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 the Wiring Diagrams chapter.

Note: Any modifications, additions or changes to the

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

Supply Power Wiring

WARNING

Hazardous Vo ltage 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, submit tal, or nameplate. R eference the wiring schematic for specific wiring connections.

NOTICE:

Use Copper Conductors Only!

Failure to use copper conductors could result in equipment damage as unit terminals are not designed to accept other types of conductors.

Note: All field wiring should conform to NEC and all

applicable state and local code requ irements. 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 electric heat, the power leads and capped ground wire are inside the junction box directly beneath the control panel.

If the unit has electric heat, the power leads are in the electric heat control box directly beneath the control panel.

Lowboy power leads are in the compartment to the side of the control box.

Electrical Grounding Restrictions

All sensor and input circuits are normally at or near ground (common) potential. When wiring sensors 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 interconnection wiring to connect wall-mounted devices suc h as a fan control switch 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 schematics. All interconnection wiring must conform to NEC Class 2 wiring requirements and any state and local requirements.

Refer to the table below for the wire size range and maximum wiring distance for each device.

60 UNT-SVX07J-EN

Installation - Electrical

Table 25. Maximum wiring distances for low voltage

controls (ft)

Device Wire Size Range

Fan Control 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 applications 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 26. Free discharge and high static ECMs

programmed to standard ECM mode

Unit Size

2 2.2 0.13 1.4 0.13 1.6 0.24 3 2.2 0.13 1.4 0.13 1.6 0.24 4 2.2 0.13 1.4 0.13 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 2.2 0.22 0.13 1.8 1.4 0.22 0.13 1.6 1.6 0.24 0.24 12 3.1 2.2 0.22 0.13 1.8 1.4 0.22 0.13 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 27. Free discharge ECMs programmed to reduced

FLA mode

Unit Size

2 0.6 0.13 0.4 0.13 0.3 0.24

3 0.6 0.13 0.4 0.13 0.3 0.24

4 0.8 0.13 0.6 0.13 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 0.13 0.5 0.8 0.22 0.13 0.4 0.6 0.24 0.24 12 0.7 1.3 0.22 0.13 0.5 0.9 0.22 0.13 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 28. High static ECMs programmed t o redu ced FLA

mode

Unit Size

2 1.3 0.13 0.9 0.13 0.7 0.24 3 1.3 0.13 0.9 0.13 0.7 0.24 4 1.7 0.13 1.2 0.13 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 0.13 1 1.4 0.22 0.13 0.7 1.1 0.24 0.24 12 1.5 2.8 0.22 0.13 1.1 1.8 0.22 0.13 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 29. 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 30. Lowboy ver tical 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 31. 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

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

1050 780 580 1080 800 600 1030 780 580 1080 800 600 1050 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

Table 32. 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 1 15 V units. Use 240 V

heater voltage for 230 V units.

UNT-SVX07J-EN 61

Installation - Electrical

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 equal to or less than the MOP. The

selected fuse must be larger than the MCA. Standard fuse sizes are: 15, 20, 25, 30, 35, 40, 45, 50, 60

amps Fan-coil electric heat MBh = (heater kW) (3.413)

Table 33. Force-Flo single-stage, max kW electric heat

Unit

Size

Voltag e # 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

220-240/50/1 2 3.00 12.50

220-240/50/3 3 3.00 7.30

380-415/50/3 4 3.00 4.20

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

220-240/50/1 2 6.00 25.00

220-240/50/3 3 6.00 14.50

380-415/50/3 4 6.00 8.40

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

220-240/50/1 2 7.50 31.30

220-240/50/3 3 7.50 18.10

380-415/50/3 4 7.50 10.50

Heater amps/

Table 33. Force-Flo single-stage, max kW electric heat

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

220-240/50/1 2 10.50 43.80

220-240/50/3 3 10.50 25.30

380-415/50/3 4 10.50 14.70

62 UNT-SVX07J-EN

Installation - Electrical

Table 34. Force-Flo single stage, low kW electric heat

Unit

Size

Voltag e

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

220-240/50/1 2 1.0 4.2 2.0 8.4

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

220-240/50/1 2 3.0 12.5

220-240/50/3 3 3.0 7.3

380-415/50/3 4 3.0 4.2

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

220-240/50/1 2 3.0 12.5

220-240/50/3 3 3.0 7.3

380-415/50/3 4 3.0 4.2

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

220-240/50/1 2 3.0 12.5 4.5 18.8

220-240/50/3 3 3.0 7.3 4.5 10.9

380-415/50/3 4 3.0 4.2 4.5 6.3

208/60/1 2 2.3 10.9 3.3 15.9 5 21.7

240/60/1 2 3.0 12.5 4.5 18.8 6 25.0

277/60/1 2 3.0 10.9 4.5 16.3 6 21.7

208/60/3 3 2.3 6.3 3.3 9.2 5 12.5

240/60/3 3 3.0 7.3 4.5 10.9 6 14.5

480/60/3 4 3.0 3.7 4.5 5.5 6 7.3

220-240/50/1 2 3.0 12.5 4.5 18.8 6 25.0

220-240/50/3 3 3.0 7.3 4.5 10.9 6 14.5

380-415/50/3 4 3.0 4.2 4.5 6.3 6 8.4

Wires

amps/

Table 34. Force-Flo single stage, low kW electric heat

208/60/1 2 2.3 10.9 3.3 15.9 6 27.5

240/60/1 2 3.0 12.5 4.5 18.8 8 31.3

277/60/1 2 3.0 10.9 4.5 16.3 8 27.1

208/60/3 3 2.3 6.3 3.3 9.2 6 15.9

240/60/3 3 3.0 7.3 4.5 10.9 8 18.1

480/60/3 4 3.0 3.7 4.5 5.5 8 9.1

220-240/50/1 2 3.0 12.5 4.5 18.8 8 31.3

220-240/50/3 3 3.0 7.3 4.5 10.9 8 18.1

380-415/50/3 4 3.0 4.2 4.5 6.3 8 10.5

208/60/1 2 2.3 10.9 4.5 21.9 7 31.8

240/60/1 2 3.0 12.5 6.0 25.2 9 37.5

277/60/1 2 3.0 10.9 6.0 21.9 9 32.5

208/60/3 3 2.3 6.3 4.5 12.5 7 18.4

240/60/3 3 3.0 7.3 6.0 14.5 9 21.7

480/60/3 4 3.0 3.7 6.0 7.3 9 10.9

220-240/50/1 2 3.0 12.5 6.0 25.2 9 37.5

220-240/50/3 3 3.0 7.3 6.0 14.5 9 21.7

380-415/50/3 4 3.0 4.2 6.0 8.4 9 12.6

Note: All data based on individual units.

Unit

Size

Voltag e

Wires

amps/

UNT-SVX07J-EN 63

Installation - Electrical

Table 35. Force-Flo two-stage electric heat

Unit

Size

Voltag e # Wires 1st Stage kW Tot a l kW

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

220-240/50/1 2 1.0 3.0 12.5

220-240/50/3 3 1.0 3.0 7.3

380-415/50/3 4 1.0 3.0 4.2

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

220-240/50/1 2 2.0 6.0 25.0

220-240/50/3 3 2.0 6.0 14.5

380-415/50/3 4 2.0 6.0 8.4

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

220-240/50/1 2 2.5 7.5 31.3

220-240/50/3 3 2.5 7.5 18.1

380-415/50/3 4 2.5 7.5 10.5

208/60/1 2 2.2 7.9 38.0

240/60/1 2 3.0 10.5 43.8

277/60/1 2 3.0 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

220-240/50/1 2 3.0 10.5 43.8

220-240/50/3 3 4.5 10.5 25.3

380-415/50/3 4 4.5 10.5 14.7

Tot a l a m p s /

Table 35. Force-Flo two-stage electric heat

Unit

Size

Note: When both stages are on, the electric heat will operate only when fan

Volt ag e # Wires 1st Stage kW Tot a l k W

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

220-240/50/3 3 6.0 13.5 32.5

380-415/50/3 4 6.0 13.5 18.8

480/60/3 4 8.0 18.0 21.7

380-415/50/3 4 8.0 18.0 25.1

480/60/3 4 9.0 20.0 24.1

380-415/50/3 4 9.0 20.0 27.9

is in high speed. All data based on individual units.

Tot al a m p s /

64 UNT-SVX07J-EN

ECM Overview and Setup

Overview

This section addresses integrating the new Trane electronically commutated motor (ECM) and VelociTach™ motor control board. This exciting new series del ivers 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 39. UniTrane fan-coil with Trane ECM motor

Electronically Commutat ed Motor (ECM)

Figure 40. Trane ECM

• The ECM has integrated electronics, overload protection and short circuit protection. The motor contains no user-serviceable components inside.

NOTICE:

Equipment Damage!

Failure to follow this instruction could result in equipment damage. The motor harness attached to the single plug to which the mo tor mat es contains the v ery important motor voltage jumper and should not be modified or substituted.

• The motor mates to the unit electrically via a single

There are four primary components that enable the technology on your product:

•Trane ECM

• VelociTach motor control board

• Standard adapter board

• CSTI adapter board The motors and modules are combined as systems, and

cannot work without each other.

UNT-SVX07J-EN 65

plug that contains both the operating voltage and the control signals that are needed for correct operation.

ECM Overview and Setup

VelociTach Motor Control Board

The VelociTachTM motor control board controls and reports the performance of up to two Trane brushless DC (BLDC) motors.

Figure 41 . V elociTach motor control board

The motor control board also:

• 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.

Figure 43. Screen representation of alphabetic al characters

• Integrates service and troubleshooting tools.

• 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 42. 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, refer to the figures below for the graphical representation of each alphanumeric character.

Figure 44. Screen representation of numerical characters

66 UNT-SVX07J-EN

ECM Overview and Setup

Installation and Initial Setup

WARNING

Hazardous Vo ltage 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 ener gized. For v ar iable frequency dr ives or other energy storing compo nents provided by Trane or others, refer to the appropr iate manuf acturer’ s liter ature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

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

WARNING

Hazardous Service Procedures!

Failure to follow all precautio ns 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 tag s, stickers, and labels, as well as the foll owing 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 th e 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.

• Changes to switch set ting s on the CS TI 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 , mu st 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.

• 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 configured for soft

ramps and transitions between speeds. However, to aid in commissioning of the unit, for approximately 10–15 minutes, 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 -v oltage 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 this 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

UNT-SVX07J-EN 67

ECM Overview and Setup

with 3-mm screws. The field-supplied wires should have an insulation rating of 600 V.

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 hazar dous v oltag es, mo ving par ts 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!

Failure to follow this instruction could result in the unit overheating and becoming hot to the touch, which could result in minor or modera te injury, and/or equipment damage. On electric heat units, certain parameter values ar e loc ked out to prevent overheating of the unit. These functions will appear to be saved; howev e r, they will not be accepted if the Electric Heat Protection setting is “On”. Do not change the Electric Heat Protection setting 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 configur atio n label.

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, remove the two screws at the top of the low voltage a ccess lid and open.The motor control board will be visible. See the figure below.

Figure 45. VelociTach motor control board

The motor control board features a nested menu 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 positions as well that c hange position with each parameter, as appropriate. Under normal conditions (i.e., with no error code displayed), the status will loop the following message:

68 UNT-SVX07J-EN

Figure 46. Operational Status Codes

RPM Mode RUNNING/ FAN STATUS CONTINUOUS LOOP

Displayed when:

1) No error codes are present

2) Motor has completed ramping

(a) Motor 1 is the only motor in fan coil units.

mtr1

0000 → 2000

mtr2

0000 → 2000

Fst1

yes / no

Fst2

yes / no

EhEn

yes / no

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 M otor 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,” p. 150 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

(a)

FPRV mode.

Indicates the status being calculated or F an 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,” p. 150 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

(a).

FPRV mode.

Indicates that the temperature sensing circuit has calculated a logical “on” based on the settings of the following parameters:

Ai2m / ai2b / aipu

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)

The user interface has three input buttons (see the figure below), from left to right:

• Menu/Set

•Decrement

• Increment

UNT-SVX07J-EN 69

Figure 47. User interface input buttons

Each button has several different actuation levels depending on length of press, and what the UI is currentl y displaying.

ECM Overview and Setup

Table 36. Button actuation le vels

Button

Short Press in Status Display

Short Press in Configuration Display

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

Toggles between parameter name and value without saving (abandons value if changed).

>3 sec Enters the configuration menu

If on a parameter name, toggles to the value. If on a parameter value,

>3 sec

Duration Action

<1 sec None

>3 sec n/a

>3 sec

Duration Action

<1 sec None

>3 sec n/a

saves the value settings and returns to the parameter name as confirmation.

Faster scroll through parameter name, or faster decrease of values of parameters.

Faster scroll through parameter name, or faster increase of values of parameters.

Menu/Set

Decrement

Increment

Configuration Examples

Example 1

To view the value of parameter s without saving. In this case we wish to verify that the “Low Speed Value” for Motor 1 is set correctly to 800 rpm.

Figure 48. Verify low speed value

Example 2

We wish to change the change the value of 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.

If the display has timed out and returned to the 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:

70 UNT-SVX07J-EN

ECM Overview and Setup

Figure 49. Change value of low speed value

Example 3

We wish to double check to see if the value of “820 rpm” has been saved.

If the display has timed out and returned to the status loop, repeat Example 1 and Example 2 to arrive back at this example’s starting point.

Figure 51. Change value on electric heat unit

Figure 50. Verify value of 820 rpm

Example 4

We wish to change the value of a protected value on an electric heat unit. See Figure 51.

It would appear that the value has been changed, but if we chec k the value, we notice that the original value has been retained.

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.

UNT-SVX07J-EN 71

ECM Overview and Setup

Table 37. Error Codes

Displayed during abnormal operation.

mtr1 Indicates a locked rotor condition of Motor 1. The motor will be locked out until the LOCK

cause has been resolved, and the power cycled; refer to “ECM Motors,” p. 150 for resolution details.

Fan Status function, if bein g used, w ill repo r t an inoperative motor. Electric heat and changeover heat will be shut down.

mtr2 Indicates a locked rotor condition of Motor2. The motor will be locked out until the LOCK

cause has been resolved, and the power cycled; refer to “ECM Motors,” p. 150 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.

mtr1 Indicates that Motor 1 has experienced a run-away or over speed condition, and has Ospd

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 “ECM Motors,” p. 150 to reset, the cause must be resolved and the power to the unit cycled. Electric heat and changeover heat will be shut down.

mtr2 Indicates that Motor 2 has experienced a run-away or over speed condition, and has Ospd

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 “ECM Motors,” p. 150 to reset, the cause must be resolved and the power to the unit cycled. Electric heat and changeover heat will be shut down.

Ramp Indicates the motor is transitioning between speeds, ramping up or down. The 0000 → 2000 2000 → 0000

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.

v123 On power on, the version of software is briefly displayed, followed by the results of a

POST (power on self test).

Note: Fan coil units have only Motor 1 installed.

Adjustments

After connections of power and hookup of customer installed controls/fan speed control and unde r normal operative conditions, the only adjustme nts 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)

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!

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 pow er cannot be inadvertently energize d. For var iable frequency dr ives or other energy storing components provided by Trane or others, refer t o the appropr iate manuf actur er’ s liter ature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

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

72 UNT-SVX07J-EN

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 boar d. 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!

Failur e t o follow this instruction could r esu lt in the unit overheating and becoming hot to the touch, which could result in minor or modera te injury, and/or equipment damage. On electric heat units, certain parameter values ar e loc k ed out t o pr ev ent o v er heating of the unit. These functions will appear to be saved; howev e r, they will not be accepted if the Electric Heat Protection setting is “On”. Do not change the Electric Heat Protection setting 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.

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 Va c supply system to av oid damage to equipment.

• 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.

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 0–10 V (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 0–10 V inputs is optional.

• All inputs are independently configurable and simultaneously accessible, and the motor control board will choose the highest user (configured and

ECM Overview and Setup

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 speed 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), defined as input 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

AlM1 and AlM2 once the analog (0–10V)

AlM1 and

AlM2. If the analogue input goes to 10V, the motor

control board will drive the motor to maximum speed (normally catalogue “high speed” value), defined as

AhM1 and ahm2, and will change speed in response.

Although the VelociTach motor control board ships with settings that will work with most 0–10 VDC outputs, calibration should be performed to maximize response range and controller authority. T ypicall y , 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 higher than the minimum output of the field su pplied 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

vflr setting on the motor control board to be

vflr

AlM1 and AlM2 value. The full range of motor

control 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 (

AlM2)

and

• 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 reac hing a value of

9.0V at the adapter boards, then the should be set to (10/9=) 1.111 . If left un-calibrated, the unit will never attain maximum speeds, defined as

Aisc to normalize the operational

Aisc parameter

AlM1

AhM1 and ahm2.

UNT-SVX07J-EN 73

ECM Overview and Setup

• The motor control board can accept slightly overbiased inputs up to 12 VDC, and the can be set to a value less than 1.0 to compensate.

Aisc parameter

VSP Setup Examples

Figure 52. Example 1:

too high

Figure 53. Example 2:

correctly

vflr set too high and Aisc set

vflr set too high but Aisc set

Potentiometer/Rheostat For VSP

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 pow er cannot be inadvertently energize d. For var iable frequency dr ives or other energy storing components provided by Trane or others, refer t o the appropr iate manuf actur er’ s liter ature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

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 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.

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

Figure 54. Example 3:

correctly

74 UNT-SVX07J-EN

vflr set correctly and Aisc set

depicted in Figure 55, the zone (off).

The typical connection is depicted in Figure 55; however, please consult the unit schematic for the most updated instruction, as this is provided as reference only.

vflr setting will define a null-

ECM Overview and Setup

Figure 55. Typical connection

Adjusting Optional Auto-Changeover Function on CSTI Units

WARNING

Hazardous Vo ltage 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 ener gized. For v ar iable frequency dr ives or other energy storing compo nents provided by Trane or others, refer to the appropr iate manuf acturer’ s liter ature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

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-B), the Tracer® 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 setpoint bi-metallic disc temperature switc h is used to provide c hangeover 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 pre-configured for typical values, so changeover settings do not necessarily need to be changed.

Note: CSTI board does not support changeover function

with modulating valves.

– An 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:

Fprv parameter should normally be set to EHl

•

or Ehfs to use the changeover functions.

Ehl parameter should be c hosen if the unit has

•

a changeover coil without electric heat.

EhFs parameter should be chosen if the unit

•

has a changeover coil with electric heat. Generally, this will perform the same as the Ehl parameter but in addition, will disable heating function on electric heat and on the c hangeov er coil if there are fan failures. The auxiliary heating coil function will continue to operate and respond to the customer heating request.

AiPU parameter should be set to In for CSTI units

•

and to Out for Comfor tLink or BacNet controller units.

Ai2M parameter defines the temperature at whic h

• the motor control board will close the triac onboard the motor control board (if correctly).

Ai2b 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.

• When combined with the CSTI adapter board, the bimetallic disc temperature switch emulation and the electric heat lockout function will work when the switches are set cor rectly.

Fprv parameter is set

Configurations

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 45, p. 68 and Figure 56, p. 76). The VelociTach motor control board label may be on the back-side of the low voltage access lid, depending on the unit configuration.

UNT-SVX07J-EN 75

ECM Overview and Setup

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 wi th the settings from another unit will result in abnormal operation. The label contains four important sections:

• How to enter the configuration menu

• The description and meaning of the error codes

• The description and meaning of the status display

• The parameter names and values specific to that unit

Figure 56. 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 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!

Failure to f ollo w this instr uction could r esult in the unit overheating and becoming hot to the touch, which could result in minor or moderate injury, and/or equipment damage. On electric heat units, certain parameter values ar e loc k ed out t o pr ev ent o verheating 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 setting to “Off” and make changes to the protect ed settings unless you are progr amm in g an unconfigured service replacement board to match the unit settings on a ECM configuration label.

NOTICE:

Equipment Damage!

Do not change the PWM output voltage settings as motor damage could occur.

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 38 lists the parameter names and typical settings of

the motor control board, for reference only. Do not change the electric heat protection set tings if your

Note: This label is provided for reference only, as an

example, and should not be used to configure the unit.

76 UNT-SVX07J-EN

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 motor control board output format

Note: The following 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.

mod1 and mod 2 and motor signal

SIG1 and SIG2.

ECM Overview and Setup

Table 38. Configuration settings of the motor control board (for reference only)

Description on

Unit Label

Mtr 1 High Spd Hi 1 1080 Sets the high-speed rpm for Motor 1. Do not exceed 2300 rpm. Mtr 1 Med Spd md 1 777 Sets the medium-speed rpm for Motor 1. Mtr 1 Low Spd lo 1 632 Sets the low-speed rpm for Motor 1. Do not set under 600 rpm.

EHStg1 Mtr1 Spd E1m1 0

EH Stg 2 Mtr 1 Spd

AI High Spd Mtr 1 ahm1 0

AI Low Spd Mtr 1

Mtr 2 Hgh Spd Hi 2 0 Sets the high-speed rpm for Motor 2. Blower coils have only one motor.

Mtr 2 Med Spd

Mtr 2 Low Spd Lo 2 0 Sets the low-speed rpm for Motor 2.

EHStg1 Mtr2 Spd E1m2 0

User

Interface

Name

E2m1 0

alm1 0 Md 2 0 Sets the medium-speed rpm for Motor 2.

Typical User

Interface

Value Description

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.

Assigns an rpm to be associated with a call for

stage electric heat, for Motor 2 (only on

electric heat equipped units).

E1M1, E1M2, E2M1, E2M2 settings

are locked out on units with electric heat.

Analog inputs below the vFlr setting will be

rejected.

If the unit has only one motor, all seven speed settings for the second motor

(Hi 2, Md 2, Lo 2, E1M2, E2M2,

ALM2,

Assigns an rpm to be associated with a call for

EH Stg 2 Mtr 2 Spd E2m2 0 AI High Spd Mtr 2 ahm2 0

AI Low Spd Mtr 2 alm2 0 Op Mode Mtr 1 mod1 rpm Sets the operational mode for Motor 1. Op Mode Mtr 2 mod2 rpm Sets the operational mode for Motor 2.

Mtr 1 Out Format

Mtr 2 Out Format sig2 pwM Sets the interface type for Motor 2

Mtr 1/2 PWM Freq.

Mtr 1 PWM Volt M1vl 5

Mtr 2 PWM Volt

Mt1 Hgh PWM Lt M1hi 90

Mt1 Low PWM Lt

Mt2 Hgh PWM Lt M2hi 90

Mt2 Low PWM Lt

Mt1 Ovspd RPM rpm1 2500

Mt2 Ovspd RPM

Fan Proving Fct FPrv Fnst

sig1 pwM

freq 100

M2vl 5

M1Lo 14.5

M2Lo 14.5

rpm2 2500

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 interface type for Motor 1.

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.

AHM2) should be set to zero.

Must be set to

Must be set to rpm for blower coil units.

Must be set to

Must be set to PWM for blower coil units.

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.

rpm for blower coil units.

PWM for blower coil units.

PWM must not be

UNT-SVX07J-EN 77

ECM Overview and Setup

Table 38. Configuration settings of the motor control board (for reference only) (continued)

Description on

Unit Label

User

Interface

Name

Typical User

Interface

Value Description

AI Boost Amp AiSc 1

AI Floor

PulsePerRev Fdbk 18

P Value Mtr 1

I Value Mtr 1 Ivl1 0.03

P Value Mtr 2

I Value Mtr 2 Ivl2 0.03

Ht Sens Mk Val F

Ht Sens Bk Val F Ai2b 90

Ht Sens Resistor

Mt 1 Ramp %/sec M1rp 3 Sets the ramp rate for Motor 1, in % per second. Mt 2 Ramp %/sec m2rp 3 Sets the ramp rate for Motor 2, in % per second

EH Ramp Accel Ehrp 2

vFlr 0.5

pvl1 0.03

pvl2 0.03

Ai2m 85

AiPu out

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 acceleration factor for the electric heat inputs.

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

1 should be used if no voltage level

Fprv, Ai2B , and

Aipu settings.

Operation also depends on Fprv, Ai2m, and

Aipu settings.

Should be pre-set to “OUT” for Tracer® ZN controllers.

Is used to force faster ramps when electric heat is requested.

Ramp MAX Time

EH Fan off delay EHdl 15

Lck Rtr Protect

Protect Funct

Rmp dft (auto rst) rpdf off

Soft Rev

Mhrp 15

Lrpt on

Ehpt on

soft vx.xx Displays the software version.

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.

This function shortens the ramps for faster unit commissioning and auto-resets to off after approximately 15 minutes of power-on operation.

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.

M1rp and M2rp if

Mhrp.

AiPU FPrv AiMK AiBK E1M1 E1M2 E2M1 E2M2 Sig Mod1 Mod2 M1Hi M1Lo

To aid in commissioning of the unit, for approximately 10–15 minutes, the ramps will be shortened to quickly observe proper unit behavior and response to speeds.

Module should be received with most recent version.

78 UNT-SVX07J-EN

ECM Overview and Setup

Fan Speed Response Verification

1. After performing controller specific commissioning, observe the display on the motor control board with the power on, to the unit. The motor control board display should display a looping status indicator as follows:

Mtr1 → 0 → Mtr2 → 0 → FSt1 → Off → Fst2 → Off → EhEn → On

Notes:

• The

• A representative fan speed of “1080” rpm are shown in

EhEn indicator is unit-specific and may indicate

“Of f” at this point; refer to thermistor function for more information.

the example below. Each unit is factory-configured differently and will have different settings for different fan speeds.

2. While the unit remains on, exercise the fan controls on the unit, either directly or indirectly through request for unit heat/cool. Observe the fan spinning, and then observe the fan display on the motor control board. It should display a looping status indicator as follows:

For a size 200, 300, 400, 600, or 800 unit (using typical unit operating fan speeds):

Mtr1 → 1080 → Mtr2 → 0 → FSt1 → On

→ Fst2 →

Off → EhEn → On

For a size 1000 or 1200 unit (using typical unit operating fan speeds):

Mtr1 → 1080 → Mtr2 → 1080 → FSt1 → On → Fst2 → on → EhEn → On

Note: The

3. OPTIONAL: While the fan is running, if practical, change the fan

speeds and observe the display temporarily indicate:

ramp

Exercise all fan speeds to ensure positive unit response and to validate any field wiring.

EhEn indicator is unit-specific and may

indicate “Off” at this point; refer to thermistor function for more information.

UNT-SVX07J-EN 79

Installation - Controls

X1361617010

X13651617020

Customer low-voltage interface for fan speeds, variable fan speed, and 24 Vac supply

Control Options

Available con tr ol options are:

• Fan speed control (provided when no control pac kage is selected)

• Customer-supplied terminal interface (CSTI)

• Tracer

Figure 57. Fan speed control The fan speed control is available for units that do not have T rane factory-

Figure 58. Standard adapter board

ZN010 controller

mounted control packages. This variable fan speed option is low-voltage and has three 24-volt relays using a factory-wired transformer and relays to control the fan motor.

The adapter allows direct customer interfacing through the use of terminal strips. Standard interfacing includes:

Variable speed (0–10V) inputs. The standard adapter boar d elim inates man y separate wiring harnesses

in the panel and allows simple, mistake-proofed single-plug interfacing of:

• VelociTach motor control board

•Transformers

•Motors

• Valves

•Dampers

• Electric heat control

• Fan speed control

• Tracer

Fan Speed Contr o l with Standard Adapter Board

ZN510 controller

ZN520 controller

UC400-B controller with Air-Fi® Wireless

Communications Interface

Customer Supplied Terminal Interface (CSTI)

The control interface is intended to be used with a fieldsupplied, low-voltage thermostat or controller . The control box contains a relay board which includes a line voltage to 24-volt transformer, quiet contactors (for electric heat units), and an optional disconnect switch. All end devices are wired to a low-voltage terminal block and are runtested, so the only a power connection and thermostat connection is needed to commission the unit. Entering water temperature 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.

80 UNT-SVX07J-EN

Figure 59. CSTI adapter board and field connections

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)

2 1 13 12 11 10 9 8 7 6 5 4 3 2 1

Installation - Controls

1. VSP 10V

2. VSP 0–10V

3. VSP DC COM

1. 24 Vac B (hot)

2. 24 Vac Y (gnd)

3. High

4. Medium

5. Low

6. V1Op/Cooling

7. V1Cl (not std)

8. Not used

9. Not used

10. V2Op/EH1St/Heating

11. V2Cl/EH2St (not std)

12. Damper Open

13. Dmp Cl (not std)

The CSTI adapter board provides all the hookups as 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 convenie nt 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 w al l-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 0–10 VDC input from a thermostat/controller with a variable speed output, or a fan control rheostat.

The terminal block functional assignments and polarity are shown for reference only , and the schematics that ship with each unit should be consulted before wiring. Wiring assignments are configured for each unit.

CSTI Adapter Board Configuration

CAUTION

Burn Hazard!

Failure to f ollo w this instr uction could r esult in the unit overheating and becoming hot to the touch, which could result in minor or moderate injury, and/or equipment damage. 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 hav e f ailed. Th is switch shoul d NO T be tur n ed off i f 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 hea t.

For CSTI units, the board mo unted switches have to be set appropriately to enable the desired functionality.

Figure 60. CSTI board-mounted switches

UNT-SVX07J-EN 81

Installation - Controls

Table 39. 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

Electric Heat /

Fan Proving Function

Electric Heat /

Fan Proving Function

• All switches are factory-set based on customer 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 in version circuits, if they are selected.

SW3 enables or disables the changeover function for 2-pipe changeo ver 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 cool ing (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 function to work.

Cooling

In general, the (CSTI) changeover function will provide cooling if:

• A unit is factory configured with a changeover coil (cooling/heating) as the only coil or as the main coil portion.

• SW3 on the CSTI adapter board is turned on, and the

Fprv parameter set to EHl or Ehfs to use the

changeover functions.

Ehl parameter should be chosen if the unit has a

–

changeover coil without electric heat.

EhFs parameter should be chosen if th e unit has a

–

changeover coil with electric heat. Generally, this will perform the same as the Ehl parameter but 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 heating requests.

• 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 10K NTC thermistor (similar to T r ane part number

X13790374010) is wired properly to the motor control board, through the crossover cables and CSTI adapter boards.

– The input impedance of the thermistor circuit must

be set correctly (the to

in for CSTI units).

– The temperature sensed is lower than the

parameter.

–The

Ai2b parameter is higher than the Ai2M

parameter.

– The temperature is not in the dead-band between

Ai2b parameter and the Ai2M parameter (in

the this case, previous state will be retained).

• 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.

Aipu parameter should be set

Ai2M

82 UNT-SVX07J-EN

Installation - Controls

Heating

In general, the (CSTI) changeover function will provide heating if:

• A unit is factory-configured with a changeover coil (cooling/heating) as the only coil or as the main coil portion.

• SW3 on the CSTI adapter board is turned on, and the

Fprv parameter set to EHl or Ehfs to use the

changeover functions.

Ehl parameter should be chosen if the unit has a

–

changeover coil without electric heat.

EhFs parameter should be chosen if the unit has a

–

changeover coil with electric heat. Generally, this will perform the same as the 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 heating requests.

• 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 10K NTC thermistor (similar to T rane part number

X13790374010) is wired properly to the motor control board, through the crossover cables and CSTI adapter boards.

– The input impedance of the thermistor circuit must

be set correctly (the

in for CSTI units).

– The temperature sensed is higher than the

parameter.

– The

a. The temperature is not in the dead-band between

• The customer 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.

• The heating input on 1TB3 will drive the main changeover co il 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.

Ai2b parameter is higher than the Ai2M

parameter.

Ai2b parameter and the Ai2M parameter (in

the this case, previous state will be retained).

Aipu parameter should be set

Ehl parameter but will

Ai2b

SW4 selects the electric heat lockout function, where we will lock out the electric heat circuit based on either:

• The presence of hot water in the changeover coil section (if the

• Abnormal behavior of the fan/s (if the is set to FnSt).

• Or a combination of both the presence of hot water or abnormal behavior of the fan/s (if the is set to EHFs).

• 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:

– The temperature sensed is higher than the

parameter.

–The

parameter.

– The temperature is not in the dead-band between

Ai2b parameter and the Ai2M parameter (in

the this case, previous state will be retained).

– The input impedance of the thermistor circuit must

be set correctly (the to in for CSTI units).

Fprv parameter is set to EHl).

Fprv parameter

Ai2b

Ai2b parameter is higher than the Ai2M

Aipu parameter should be set

UNT-SVX07J-EN 83

Installation - Controllers

Zone sensor connections

Communications connection

Service button

and LED

Communication

LED

Auto test

Status LED

Power

Generic

Tracer® ZN010 and ZN510 Controllers

Figure 61. Tracer® ZN010 control board

T racer® ZN0 10 controller is a s tand-alone microprocessor controller.

Figure 62. Tracer® ZN51 0 control board

The T racer® ZN520 controller is a factory-installed, -tested and -commissioned LonT alk® control designed to provide control of Trane products. The discrete speed controller can also be used in a stand-alone application. Features include:

• Automatic fan-speed reset

• Automatic ventilation reset

• Active dehumidification

• Manual output test

• Filter maintenance

• Master slave

• Water valve override

• Freeze avoidance

• Interoperability

Three generic I/O ports The T racer® ZN520 controller is designed to be used in the

following applications:

• As part of a Tracer® SC or Tracer® Summit®

building automation system (BAS), the Tracer® ZN520 becomes an important part of the Tracer® control system.

• The T racer® ZN520 can function as a completely standalone controller in situations where a BAS is not present.

• For situations when a non-Trane BAS is present, the Tracer® ZN520 can be used as an inter-operable unit controller.

Tracer® ZN510 controller can be used as either a standalone or communicating microprocessor cont roller.

Tracer® ZN520 Controller

Figure 63. Tracer® ZN520 control board

84 UNT-SVX07J-EN

Installation - Controllers

ZN510 and ZN520 Controllers

Tracer® ZN510 and ZN520 controllers are LonTalk® devices that interface with the Tracer® SC or Tracer® Summit building automation system (BA S). Reference the unit wiring diagram or submittals.

Ground shields at each Tracer® 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® ZN520 Unit Controller: Installation, Operation and Programming Guide for the communication wiring diagram

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 T ype CL2P

• Trane Part No. 400-20-28 or equivalent, available through T rane BAS Buying 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-gauge, shielded, twisted pair with stranded, tinned-copper conductors. For daisy chain 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

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 branc h configu rations shorten 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 Tracer® 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.

Tracer® UC400-B Controller

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 wi re. Do not use wire nuts to make the splice.

• Do not pass communication wiring between buildings because the unit will assume different ground potentials.

• Do not run power in the same conduit or wire bundle with communication link wiring.

Note: You do not need to observe polarity for LonTalk

communication links.

UNT-SVX07J-EN 85

The Tracer® UC400-B single-zone VAV controller can be used in a stand-alone application or as part of a Tracer® control system.

In the stand-alone configuration, Tracer® UC400-B receives operation commands from the zone sensor and/ or the entering water temperature sensor (on auto changeover units).The reading from the entering water temperature sensor and determines if the unit is capable

Installation - Controllers

of cooling or heating. The zone sensor module is capable of transmitting the following information to the controller:

• Timed override on/cancel request

• Zone setpoint

• Current zone temperature

• Fan mode selection (off-auto-high-med-low)

For optimal system performance, units can operate as part of a Tracer® SC building automation system. The controller is linked directly to the T racer ® SC via a twisted pair communication wire, requiring no additional interface device (i.e., a command unit). The Tracer® control system can monitor or override Tracer® UC400-B control points.This includes such points as temperature and output positions.

Note: For more detailed information, refer to:

• BAS-SVX20C-EN Tracer® UC400-B Programmable Controller Installation, Operation, and Maintenance manual

Communication Wire Specifications

All wiring must comply with the National Electrical Code (NEC™) and local electrical codes.

Field-supplied BACnet MS/TP link wiring mu st 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 64. Connecting wires to terminal

4. Tug on the wires after tightening t he screws to ensure all wires are secure as shown on the right.

Setting the Address

The rotary address dials o n the UC400-B controller serve one or two purposes depending upon the network: they are always used for the MAC Address, whic h is sometimes all or part of the BACnet Device ID.

Use a 1/8 inch (3.2 mm) flathead screwdriver to set rotary address dials. Dials rotate in either direction.

Figure 65. Setting rotary address dials

nix

t e

n C

8 J

4 P in P h

11 - AMP

12 - AMP

Zone

x i

oe h

1 J

n Pi

Auxiliary 24

erv Too

onnec

mm In

enso

ion

+ - + -

C D V

n G

mm -

mm +

2 1

rin

Tem

24VD

C A

Phoenix

1 O B

A V

Phoenix

C A

O B

C A V

1 2 3 4 5

C A

O B

14 1312 11 1

24 V

1 2

14 -JST

C A

09876 543

O B

14 Pi n AMP

7 O B

ondens

verow

es s

Addr

BI2

Low

etec

ion

(

)

(

MAC Address

The MAC Address is required by the RS-485 communication protocol on which BACnet operates. A UC400-B 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.

To connect wires to the UC400-B 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.).

86 UNT-SVX07J-EN

Installation - Controllers

BACnet Device ID

The BACnet Device ID is required by the BACnet network. Each device must have a unique number from 001 to

4094302.

Figure 66. BACnet device ID

BACnet networks without a Tracer® SC system controller

On BACnet networks without a Tracer® SC system controller, the Devic e 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-B 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.

BACnet networks with a Tracer® SC system controller

On BACnet networks with a T racer® SC system controller , the Device ID for the UC400-B controller is always soft set by the system controller using the following scheme illustrated below.

Note: The BACnet Device ID is displayed as the Softw are

Device ID on the Tracer® TU Controller Set tings page in the Protocol group.

Figure 67 shows an example of BACnet link wiring with

multiple UC400-B controllers.

Figure 67. Example of BACnet link wiring with m ultiple

UC400-B controllers

Tra ne

BACnet

Ter mi na to r

Gnd24

VDC

BACnet

IMC

Tracer SC UC400-B

Zone Sensor

GND

24VDC

Comm-

Comm+

Gnd24

VDC

BACnet

GND

24VDC

Comm-

Comm+

IMC

Gnd24

VDC

BACnet

Comm-

IMC

UC400-B UC400-B

Zone Sensor Zone Sensor

GND

24VDC

Comm+

Power Supply

Please read all of the warnings, cautions, and notices below before proceeding with this section.

WARNING

Hazardous Voltage!

Failure to disconnec t power before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout pr ocedur es t o ensure the power can not be inadvertently energized.

CAUTION

Personal Injury and Equipment Damage!

After installation, make sure 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 c hassis ground and any ground terminal on the UC400-B controller. Expected result: Vac £ 4.0 V

NOTICE:

Avoid Equipment Damage!

Sharing 24 Vac power between controllers could cause equipment damage.

A separate transformer is recommended for each UC400B 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-B controllers:

• The transformer must have sufficient capacity.

• Polarity must be maintained for every UC400-B controller powered by the transformer .

UNT-SVX07J-EN 87

Installation - Controllers

24VAC

GND2

GND

J15 J16

BO1

24VAC

BO2

4VAC

BO3

24VAC

PhoenixPhoenix

1 2 3 4 5 6 1 2 3 4 5 6

Alternate

Ground Method

24 Vac

Transformer

Important: If the polarity is inadvertently reversed

between two controllers powered by the same transformer, a dif ference of 24Vac will occur between the grounds of each controller, which can result in:

• P artial or full loss of communication on the entire BACnet MS/TP link

• Improper function of the UC400-B controller outputs

• Damage to the transformer or a blown transformer fuse

Transformer Recommendations

A 24Vac power supply must be used for proper operation of the binary inputs, which requires 24Vac detection. In addition, the spare 24Vac outputs may be used to power relays and TRIACS.

• 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

To ensure proper operation of the UC400-B 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 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.

) copper wire is recommended for

Connecting Wires

Figure 68. Grounding the controller

To connect the wires:

1. Disconnect power to the transformer.

2. Connect the 24Vac secondary wires from the transformer to the 24Vac and terminals on the UC400-B 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 enclosure 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 24V ac 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 UC400B controller.

4. Observe the UC400-B 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.

88 UNT-SVX07J-EN

Installation - Controllers

Air-Fi® Wireless Communications System

For more detailed information on Air-Fi® Wireless Communications system and devices, see:

• BAS-SVX40*: Air-Fi® Wireless Installation, Operation,

and Maintenance

• BAS-PRD021*-EN: Air-Fi® Wireless Product Data Sheet

• BAS-SVX55*: Air-Fi® Wireless Network Design

Air-Fi® Wireless Communications Interface (WCI)

A factory-installed Air-Fi® Wireless Communications Interface (WCI) provides wireless communication between the T ra cer® SC and Tracer® unit controllers. The Air-Fi® WCI is the perfect alternative to a T rane BA Cnet® wired communication link. Eliminating the communication wire between terminal products, spac e sensors, and system controllers has substantial benefits:

• Reduced installation time and associated risks.

• Completion of projects with fewer disruptions.

• Easier and more cost-eff ective re-configurations, expansions, and upgrades

Air-Fi® Wireless Communications Sensor (WCS)

routing of communication cable are issues. A WCS allows flexible mounting and relocation.

Wireless Zone Sensor (WZS) Set

A wireless zone sensor (WZS) set (sensor and receiver) communicates wirelessly to a Tracer® unit controller. A wireless zone sensor set is an alternative to a wired sensor when access and routing of communication cable are issues. The sensor allows flexible mounting and relocation.

Note: A wireless zone sensor set is not compatible with

an Air-Fi® wireless system.

The Wireless Comm Interface (WCI) enables wireless communication between system controls, unit controls, and wireless sensors for the new generation of Trane control products.The WCI replaces the need for communication wire in all system applications.

Note: For more detailed information, refer to:

• BAS-SVX40A-EN - Wireless Comm Installation, Operation and Maintenance manual

• BAS-SVX55A-EN - Wireless Comm Network Design Best Practices Guide

Quantity of WCIs per Network

Each Trane wireless network can have 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.

Automatic Network Formation

When a WCI is connected to a Tracer® SC, it is autoassigned 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

Communicates wirelessly to a Tracer® unit controller. A WCS is an alternative to a wired sensor when access and

UNT-SVX07J-EN 89

automatically join the network. If no T racer® SC is present, a centrally located WCI must be designated to act as the coordinator.Y ou can manually set the coordinator WCI so

Installation - Controllers

all WCIs having matching addresses automatically join the network.

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 V oltage: 24 V ac/VDC nominal ± 1 0 percent. If using 24 V ac,

polarity must be maintained. Receiver power consumption: <2.5 V A 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 pac ket error rate

of 2 percent. Indoor: Typical r ange 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 Profile, ANSI/ ASHRAE Standard 135-2008 Addendum q (BACnet™/ ZigBee)

90 UNT-SVX07J-EN

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.

• Tracer® ZN510 is a discrete speed controller that can be used in a stand-alone application or can communicate with a building automation system using LonTalk

• Tracer® ZN520 is a discrete speed controller that can be used in a stand-alone application or can

Figure 69. Unit-mounted temperature

Communication

sensor (SP, OALMH)

Figure 70. Wall-mounted temperature

sensor (SP, OALMH)

communicate with a building automation system using LonTalk Communication

• T racer® UC400-B delivers single zone V AV con trol in a stand-alone operation or as part of a building automation system using BACnet

Zone sensors have an internal thermistor and operate on 24 Vac. Options with setpoint knobs are available in Fahrenheit or Celsius. See Figure 69 through Figure 79 for available options and model number references.

communications

ZN010 Controller Options

Figure 71. Split-mounted zone

sensor, unit-mounted fan speed control, and wallmounted setpoint dial

ZN510, ZN520, UC400-B Controller Options

Figure 72. Unit-mounted temperature

sensor (SP, OALMH, OCC/ UNOCC)

Figure 73. Wall-mounted display

temperature sensor (SP, OCC/UNOCC, OALMH, COMM)

Figure 74. Wall-mounted temperature

(OCC/UNOCC, COMM)

UNT-SVX07J-EN 91

Zone Sensor Options

Figure 75. Wall-mounted temperature

sensor (SP, OCC/UNOCC, OALMH, COMM)

Figure 78. Wall-mounted wireless

display sensor (WDS) and unit-mounted receiver

Figure 76. Split-mounted zone

sensor, unit-mounted fan speed control, wallmounted temperature sensor (SP, OCC/UNOCC, COMM)

Figure 79. Air-Fi® Wireless

Communications Sensor (WCS)

Figure 77. Wall-mounted wireless

zone sensor (WZS) with setpoint adjustment, (OCC/UNOCC) no fan speed adjustment, and unit-mounted receiver

Zone Sensor Installation

Location Considerations

When selecting a location for the zone sensor, avoid the following:

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

• Air drafts from stairwells, outside doors, or unsectioned hollow walls.

• Airflow from adjacent zones or other units.

• Unheated or uncooled spaces behind the controller, such as outside walls or unoccupied spaces.

• Concealed pipes, air ducts, or chimneys in partition spaces behind the controller.

• Areas in the direct airstream of air diffusers

• Exterior walls and o ther walls that ha ve a temperature differential between the two sides

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

92 UNT-SVX07J-EN

• 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 (for example, plastered walls with metal lathe or metal roof decks)

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

Location Considerations for Wireless Zone Sensors

Placement of the sensor is critical to proper operatio n (the receiver is factory mounted). For most installations, barriers limit proper radio signal 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 general, sheetrock 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%)

Zone Sensor Options

1.45 in.

0.63 in.

2.48 in.

4.68 in. 3.39 in.

0.12 in.

1.08 in.

2.90 in.

TYP 0.24 in.

TYP R.07 in. (R1.9)

0.31 in.

2.62 in.

• 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 provided, mount the bac k plate of the sensor to a flat surface such 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.

Figure 80. Wall-mounted wired and wireless zone

sensor dimensions

Zone Sensor Dimensions

Refer the wall-mounted zone sensor dimensions in the figure below. Po sition 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.

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 the figure below). a. Hold the back plate against the mounting surface

and mark the screw locations.

b. Secure the bac k plate against the mounting surface

using included hardware.

UNT-SVX07J-EN 93

Zone Sensor Options

Security screw

Figure 81. Mounting zone sensor base plate

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. Attach 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 terminal 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 the figure below).

Figure 82. Mounting zone sensor security screw

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 81) a. Hold the back plate against the mounting surface

and mark the screw locations.

b. Secure the bac k 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 82).

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 83) and push upward.

94 UNT-SVX07J-EN

B1 +

LED1

Pb-FREE

LED4

Sensor

Set address before removing insulation strip.

Battery status

Address

Wireless

install

Status

LED3

LED2

Signal LED5

Label

R77

C35

C33

LED4

LED1

LED2

LED3

LED5

C34

SIGNAL

POWER

I IN

TAL

WIRELESS

ADDRESS

Receive r

Heating set fan/system setpoint zone GND 24VAC/DC GND COMM + COMM -

Zone Sensor Options

To set the receiver and sensor addresses:

Figure 83. Retention tabs on underside of receiver

enclosure

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 the figure below). 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.

Figure 85. Set the rotary address switches on the

receiver

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

• It is not possible to associate more than one sensor to a receiver, nor is it possible to associate more than one receiver to a sensor.

• To associate a receiver and sensor, the two devices must have their rotary address switches set to the same address.

Important: Set the addresses before applying power to

the receiver and before removing the insulation strip (figure below) from the sensor.

Figure 84. Set address before removing insulation strip

from the sensor.

UNT-SVX07J-EN 95

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

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

000 removes all association knowledge, reverts the sensor to a low-power hibernation mode, and sends a disassociation request to the receiver.

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

Observing Receiver for Readiness

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

Important: Do not attempt association (leave the

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

Zone Sensor Options

Sec.

LED3

Figure 86. 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.

Figure 87. LED3 blinks after channel scan to show

receiver is ready

Figure 88. Power sensor by removing insulation strip

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 minutes. You can manually initiate association (see “Manual Association,”

p. 135”).

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.

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 T est button on the bottom

of the sensor as illustrated in the figure below.

2. For model WZS, view LED1, LED2, and LED3 to determine the signal strength. View LED5 to determine the battery status ( see the figure below for model WZS sensors).

Note: The LEDs will turn Off after 5 seconds to

conserve battery strength.

96 UNT-SVX07J-EN

Zone Sensor Options

Test button

Push firmly, then release

Figure 89. Wireless Zone Sensor (WZS) with LED lights

to test for battery strength

LED1 LED2 LED3

LED5

Test button

Push firmly, then release

3. For model WDS, determine the signal strength and battery status by viewing the symbols on the sensor display. Record the results in your commissioning statement.

Figure 90. Wireless Display Sensor (WDS) showing

battery strength

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 system has changed to unoccupied mode. System control will revert 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,”

p. 102.

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 receiver will “freeze” the output at the end-of-range values. This value will remain frozen 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 P ower-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 applied and the receiver is functional.

• All models: Zone temperature and cooling setpoint default to 72.5°F. WDS only: The heating setpoint defaults to 70.5°F and the fan/system output will be 2230 Ω (see “Failure and

Default Modes,” p. 136).

• Status LED3 will display a 2-blink pattern diagnostic (Table 45, p. 105).

Address set fr om 00 1 to 999 and receiv er is not associated with a sensor

• LED5 is constantly On, indicating power is applied and the receiver is functional.

• All models: Zone temperature and cooling setpoint default to 72.5°F. WDS only: The heating setpoint defaults to 70.5°F and the fan/system output will be 2230 Ω (see “Failure and

Default Modes,” p. 136).

• The receiver conducts an energy scan for 20 seconds to determine the clearest channel on which to operate.

UNT-SVX07J-EN 97

Zone Sensor Options

• 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,” p. 95).

Address set from 001 to 999 (and not chang ed 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,”

p. 136).

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 temperatur e transmissions is 15 minutes.

• The minimum time between sensor temperature 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

Wireless Sensor Specifications

Table 40. 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

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

Range

Output power 100 mW

Radio frequency

Radio channels 16

Address range 000 to 999

Minimum time between transmissions 30 seconds

Maximum time between transmissions 15 minutes

Range values are estimated transmission distances for satisfactory operation. Actual distance is job specific and must be determined during site evaluation.

Polycarbonate/ABS blend, UV protected, UL 94-5VA flammability rating, suitable for application in a plenum

Open range: 2,500 ft (762 m) (packet error rate = 2 percent) Usable: 200 ft (61 m) Typical: 75 ft (23 m)

2.4 GHz (IEEE Std 802.15.4-2003 compliant) (2405 to 2480 MHz, 5 MHz spacing)

98 UNT-SVX07J-EN

Agency Compliance

Wrench

Table 41. Agency compliance information for wireless sensors

Agency Compliance

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 compliance could void the

user’s authority to operate the equipment.

United States compliance (all models)

Canada compliance (all models)

IEEE compliance for radio frequency range (all models)

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)

Zone Sensor Options

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 whic h 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 match 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 91. Configuration button

Configuration button

The display will c hange to configuration m ode. When the sensor is in configuration mode, a wrenc h symbol appears on the display and the menus are separated by lines, as shown in the figure below.

Figure 92. Wrench is shown in configuration mode

UNT-SVX07J-EN 99

Zone Sensor Options

. .

setpoint

Single

setpoint

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

2. Press the center button on the keypad to begin the configuration process.

Figure 93. Center button of keypad

Cente button

3. Configure the sensor options in the order shown in the table.

Table 42. Configuration options for wireless display sensors

Setting Configuration Options

Temperature

• Choose Fahrenheit or Celsius

• Choose the degree resolution (whole

degrees, half degrees, or tenths of degrees).

• Press or to scroll to the next selection (as illustrated).

• Press or to move to the next menu (as illustrated in the table below).

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 on p. 99).

Note: The sensor will revert to operating mode if no

buttons are pressed for 10 minutes.

Setpoint

System

Fan

Note: Not all fan options are available

for all systems.

Occupancy (timed override)

No system

options enabled

Occupancy enabled

Occupancy disabled

100 UNT-SVX07J-EN

Trane UniTrane, Force-Flo, FC, FF, FCKB Installation, Operation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Model Number Descriptions

UniTrane™ Fan Coil/ Force Flo™ Cabinet Heater

UniTrane™ Fan Coil Low Vertical Model

General Information

Pre-Installation

Receiving and Handling

Inspection

Packaging/Shipping

Identification

Handling

Receiving Checklist

Jobsite Storage

Site Preparation

Dimensions and Weights

Service Clearances

Component Data

Available Models

Model A Vertical Concealed

Model B Vertical Cabinet

Model C Horizontal Concealed

Model D Horizontal Cabinet

Model E Horizontal Recessed

Model F Vertical Wall Hung Cabinet

Model H Vertical Recessed

Model J Vertical Slope Top Cabinet

Model K Low Vertical Concealed

Model L Low Vertical Cabinet

Model M Inverted Vertical Cabinet

Model N Inverted Vertical Recessed

Mode P Compact Concealed

Coil Connections

Fan Coil Vertical Units

Fan Coil Horizontal Units

Force Flo Vertical Units

Force Flo Horizontal and Inverted Units

Fresh Air Opening Locations

Horizontal Units

Vertical Units

Wall Box

Projection Panel

Installation—Mechanical

Installation Checklist

Installing the Unit

Vertical Units

Horizontal Units

Cabinet Units

Recessed Units

Duct Connections

Ductwork Recommendations

Coil Piping and Connections

Piping Package Components

Hydronic Coil Piping

Connecting Field Piping to Coil

Water Piping Connections

Connecting to Factory Piping

Condensate Drain Connections

Condensate Overflow Detection Device

Entering Water Temperature Sensor

Venting the Hydronic Coil

External Insulating Requirements

Balancing Manual Circuit Setter Valve

Valve and Actuator Operation

Field-Set Flow Capacity Adjustment

Valve Stroke Time

Installation - Electrical

Unit Wiring Diagrams

Supply Power Wiring

Electrical Grounding Restrictions

Interconnection Wiring

MCA and MOP Calculations

ECM Overview and Setup

Overview

Electronically Commutat ed Motor (ECM)

VelociTach Motor Control Board

Status Display