Trane TSC036E, TSC060E, THC036E, THC060E, TSC072F Installation And Maintenance Manual

Installation, Operation,
and Maintenance

Packaged Rooftop Air Conditioners
Precedent™- Electric/Electric

3 – 10 Tons – 60 Hz

Model Numbers

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

July 2012 RT-SVX22J-EN

TSC036E - TSC060E THC036E - THC060E
TSC072F - TSC1 20F THC092E - THC120E

THC048F - THC092F

SAFETY WARNING

Warnings, Cautions and Notices

Warnings, Cautions and Notices. Note that warnings,

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

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

Read this manual thoroughly before operating or servicing
this unit.

ATTENTION: Warnings, Cautions and Notices appear at

appropriate sections throughout this literature. Read
these carefully:

WARNING

CAUTIONs

NOTICE:

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

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

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

Important
Environmental Concerns!

Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may 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
such as HCFCs and HFCs.

Responsible Refrigerant Practices!

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

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

WARNING

Proper Field Wiring and Grounding
Required!

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

WARNING

Personal Protective Equipment (PPE)
Required!

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

• Before installing/servi cin g th is un it, technicians
MUST put on all P ersonal Protective Equipmen t (PPE)
recommended for the work being undertaken.
AL W A YS r efer to appr opriate MSDS sheets and OSHA
guidelines for proper PPE.

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

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

Failure to f ollow recommendations could result in death
or serious injury.

Revision Summary

RT-SVX22J-EN (18 July 2012)

• MERV 8 filter with filter removal tool

• Stainless steel drain pan, condensate overflow switch

• Updated Model Number Description, Maintenance,
Troubleshooting

© 2012 Trane All rights reserved RT-SVX22J-EN

Table of Contents

Model Number Description . . . . . . . . . . . . . . . 5

Model Number Notes . . . . . . . . . . . . . . . . 6

General Information . . . . . . . . . . . . . . . . . . . . . 7

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . 7

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Unit Nameplate . . . . . . . . . . . . . . . . . . . . . 7

Compressor Nameplate . . . . . . . . . . . . . . . 7

Microchannel Condenser Barcode ID . . . . 7

Unit Description . . . . . . . . . . . . . . . . . . . . . 7

Economizer Control Actuator (Optional) . 7

System Input Devices & Functions . . . . . . 8

Low Pressure Control . . . . . . . . . . . . . . . . . 9

High Pressure Control . . . . . . . . . . . . . . . . 9

Power Exhaust Control (Optional) . . . . . . 9

Lead/Lag Control (Dual Circuit Only) . . . . 9

Evaporator Frost Control . . . . . . . . . . . . . 10

Discharge Line Temp Switch (DLTS) . . . 11

Smoke Detector Sensor (Optional) . . . . . 11

Phase Monitor . . . . . . . . . . . . . . . . . . . . . 11

Single Zone Variable Air Volume / Displace-

ment Ventilation (Optional) . . . . . . . . . . . 11

Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 12

Unit Clearances . . . . . . . . . . . . . . . . . . . . . . 12

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Horizontal Units . . . . . . . . . . . . . . . . . . . . 21

Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

RoofCurb . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Downflow . . . . . . . . . . . . . . . . . . . . . . . . . 23

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

General Unit Requirements . . . . . . . . . . . . 25

Factory Installed Economizer . . . . . . . . . 25

Temperature Limit Switch Usage for Electric

Heat Units . . . . . . . . . . . . . . . . . . . . . . . . . 25

Horizontal Discharge Conversion (3 Through 5

Ton Units)

. . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Horizontal Discharge Conversion (6 Through
10 Ton Units)

TCO-A Instructions . . . . . . . . . . . . . . . . . . .26

. . . . . . . . . . . . . . . . . . . . . . . . .25

Return Air Smoke Detector . . . . . . . . . . . . .27

Main Electrical Power Requirements . . . .28

Electric Heat Requirements . . . . . . . . . . . .28

Low Voltage Wiring

(AC & DC) Requirements . . . . . . . . . . . . . .28

Condensate Drain Configuration . . . . . . . . .28

Filter Installation . . . . . . . . . . . . . . . . . . . . . .29

Field Installed Power Wiring . . . . . . . . . . . .29

Main Unit Power . . . . . . . . . . . . . . . . . . . . . .30

Standard Wiring . . . . . . . . . . . . . . . . . . . . .30

Optional TBUE Wiring (Through the Base

Electrical Option) . . . . . . . . . . . . . . . . . . . .30

Field Installed Control Wiring . . . . . . . . . .30

Control Power Transformer . . . . . . . . . . .31

Controls using 24 VAC . . . . . . . . . . . . . . . .31

Controls using DC Analog
Input/Outputs (Standard Low Voltage Multi

conductor Wire) . . . . . . . . . . . . . . . . . . . . .31

Smoke Detector Customer Low Voltage Wir­ing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Space Temperature Averaging (ReliaTel™ on­ly)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Voltage Imbalance . . . . . . . . . . . . . . . . . . . . .40

Electrical Phasing (Three Phase Motors) . .40

Compressor Crankcase Heaters (Optional) 41

ReliaTel™ Controls . . . . . . . . . . . . . . . . . .41

Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Electromechanical Controls

Test Procedure . . . . . . . . . . . . . . . . . . . . . .42

Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Verifying Proper Air Flow . . . . . . . . . . . . . . .43

Units with 5-Tap Direct Drive Indoor Fan .43

Units with Belt Drive Indoor Fan . . . . . . . .43

Units with Direct Drive Indoor Fan - Electro-

RT-SVX22J-EN 3

Table of Contents

mechanical Control . . . . . . . . . . . . . . . . . 44

ReliaTel units with Direct Drive Indoor Fan
(7.5 - 10 Ton High Efficiency, 10 Ton Standard

Efficiency) . . . . . . . . . . . . . . . . . . . . . . . . . 44

Units with Constant CFM Direct Drive Indoor

Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Return Air Smoke Detector . . . . . . . . . . . . . 45

Economizer Start-Up . . . . . . . . . . . . . . . . . . 46

Compressor Start-Up . . . . . . . . . . . . . . . . . 47

Dehumidification Option . . . . . . . . . . . . . . . 47

Final System Setup . . . . . . . . . . . . . . . . . . . 48

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Fan Belt Adjustment - Belt Drive Units . . . 49

Monthly Maintenance . . . . . . . . . . . . . . . . . 49

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Return Air Smoke Detector Maintenance 50

Cooling Season . . . . . . . . . . . . . . . . . . . . 50

Heating Season . . . . . . . . . . . . . . . . . . . . 50

Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . 50

Annual Maintenance . . . . . . . . . . . . . . . . . . 51

Final Process . . . . . . . . . . . . . . . . . . . . . . . . . 52

Set Point (HSP) . . . . . . . . . . . . . . . . . . . . . .55

Test 3 - System Mode and Fan Selection .55
Test 4 - LED Indicator Test, (SYS ON, HEAT,

COOL & SERVICE) . . . . . . . . . . . . . . . . . . .55

Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Method 2 . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Method 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Relative Humidity Sensor Test . . . . . . . . .55

Programmable & Digital Zone

Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . .56

ReliaTel Refrigeration Module (RTRM) De-

fault Chart . . . . . . . . . . . . . . . . . . . . . . . . . .56

Unit Operation without a Zone Sensor . .56

Unit Economizer Control (ECA) Troubleshoot­ing

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

ReliaTel Control . . . . . . . . . . . . . . . . . . . . .56

Electro Mechanical Control . . . . . . . . . . . .57

Unit Economizer Control (ECA) Test Proce­dures

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Electro Mechanical Control . . . . . . . . . . . .57

Troubleshooting procedures for Direct Drive
Plenum Fan

. . . . . . . . . . . . . . . . . . . . . . . . . . .57

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 53

ReliaTel™ Control . . . . . . . . . . . . . . . . . . . . 53

System Status Checkout Procedure . . . . . 53

Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 53

System failure . . . . . . . . . . . . . . . . . . . . . . 53

Cooling Failure . . . . . . . . . . . . . . . . . . . . . 54

Service Failure . . . . . . . . . . . . . . . . . . . . . 54

Simultaneous Heat and Cool Failure . . . 54
Resetting Cooling and Ignition Lockouts 54

Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Method 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Zone Temperature Sensor (ZTS) Service Indi­cator

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

Clogged Filter Switch . . . . . . . . . . . . . . . . 55

Fan Failure Switch . . . . . . . . . . . . . . . . . . 55

Condensate Overflow Switch . . . . . . . . . 55

Zone Temperature Sensor (ZTS) Test . . . 55

Test 1 - Zone Temperature Thermistor

(ZTEMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Test 2 - Cooling Set Point (CSP) and Heating

Unit Wiring Diagrams Numbers . . . . . . . . . . .59

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . .61

Electric Air Conditioner . . . . . . . . . . . . . . . . .61

TCY, TCX, TCC, TCD, TCH, TCM,TCP, TSC and
THC (Parts Only) Models Less Than 20 Tons

for Residential Use* . . . . . . . . . . . . . . . . . .61

Electric Air Conditioner . . . . . . . . . . . . . . . . .62

TCY, TCX, TCC, TCD, TCH, TCK, TCM, TCP,
TSC and THC (Parts Only) Models Less Than

20 Tons for Commercial Use* . . . . . . . . . .62

4 RT-SVX22J-EN

Model Number Description

TSC 036 E 3 R Z B **
123 456 7 8 9 10 11 1213

Digit 1 - Unit Type

T DX Cooling

Digit 2 - Efficiency

S Standard Efficiency
HHigh Efficiency

Digit 3 - Airflow

C Convertible

Digit 4,5,6 - Nominal Gross
Cooling Capacity (MBh)

036 3 Ton
048 4 Ton
060 5 Ton
072 6 Ton
090 7½ Ton, Single Compressor
092 7½ Ton, Dual Compressor
102 8½ Ton
120 10 Ton

Digit 7 - Major Design Sequence

E R-410A Refrigerant
F Microchannel Type Condenser

Coils

23

Digit 8 - Voltage Selection

1 208/230/60/1
3 208-230/60/3
4 460/60/3
W 575/60/3

Digit 9 - Unit Controls

E Electromechanical
R ReliaTel™ Microprocessor

Digit 10 - Heating Capacity

0=No Electric Heat F=14 kW (1 phase)
A=5 kW (1 phase)1G=18 kW (1&3 phase)
B=6 kW (3 phase) J=23 kW (3 phase)
C=9 kW (3 phase) K= 27 kW (3 phase)
D=10 kW (1 phase)
E=12 kW (3 phase) P = 54 kW (3 phase)

1

N = 36 kW (3 phase)

Digit 11 - Minor Design
Sequence

A First Sequence
B Second Sequence

20

19

Digit 12,13 - Service Sequence

** Factory Assigned

Digit 14 - Fresh Air Selection

0No Fresh Air
A Manual Outside Air Damper 0-50%
B Motorized Outside Air Damper

0-50%

27

C Economizer, Dry Bulb 0-100%

without Barometric Relief

D Economizer, Dry Bulb 0-100%

with Barometric Relief

E Economizer, Reference Enthalpy

0-100% without Barometric Relief

F Economizer, Reference Enthalpy

0-100% with Barometric Relief

G Economizer, Comparative

Enthalpy 0-100% without
Barometric Relief

3,7

H Economizer, Comparative

Enthalpy 0-100% with Barometric

3,7

Relief

Digit 15 - Supply Fa n/Drive Type/
Motor

0 Standard Drive
1 Oversized Motor
2 Optional Belt Drive Motor
6 Single Zone Variable Air Volume
7 Multi-Speed Indoor Fan

6

Digit 16 - Hinged Service
Access/Filters

0 Standard Panels/Standard Filters
A Hinged Access Panels/Standard

Filters
B Standard Panels/2” MERV 8 Filters
C Hinged Access Panels/2” MERV 8

1

Filters
D Standard Panels/2” MERV 13 Filters
E Hinged Access Panels/2” MERV 13

Filters

Digit 17 - Condenser Coil
Protection

0 Standard Coil
1 Standard Coil with Hail Guard
2 Black Epoxy Pre-Coated Condenser

24

Coil
3 Black Epoxy Pre-Coated

Condenser Coil with Hail Guard
4 CompleteCoat™ Condenser Coil
5 CompleteCoat™ Condenser Coil

with Hail Guard

Digit 18 - Through the Base
Provisions

0 No Through-the-Base Provisions
A Through-the-Base Electric

Digit 19 - Disconnect/Circuit
Breaker (three-phase only)

0 No Disconnect/No Circuit Breaker
1 Unit Mounted Non-Fused

Disconnect
2 Unit Mounted Circuit Breaker

8

Digit 20 - Convenience Outlet

0 No Convenience Outlet

4

A Unpowered Convenience Outlet
B Powered Convenience Outlet

(three-phase only)

7

7

3,7

3,7

Digit 21 - Communications

Sensor

29

DCV

3

29

Options

0 No Communications Interface
1 Trane Communications Interface
2 LonTalk® Communications Interface
3 Novar 2024 Controls
4 Novar 3051 Controls without Zone

5 Novar 3051Controls Interface with

9

29

6 BACnet™ Communications Interface

Digit 22 - Refrigeration System
Option

0 Standard Refrigeration System
B Dehumidification Option

10

21,22

Digit 23 - Refrigeration Controls

17

25

26

Note: Applicable to Digit 7 = E, F

0 No Refrigeration Control
1Frostat
2 Crankcase Heater
3Frostat

11,28

11,28

and Crankcase Heater

5

2

Digit 24 - Smoke Detector

0 No Smoke Detector
A Return Air Smoke Detector
B Supply Air Smoke Detector
C Supply and Return Air Smoke

Detectors

12,13

D Plenum Smoke Detector

12,13

16

Digit 25 - System Monitoring
Controls

0 No Monitoring Control
1 Clogged Filter Switch
2 Fan Failure Switch
3 Discharge Air Sensing Tube
4 Clogged Filter Switch and Fan

Failure Switch

24

5 Clogged Filter Switch and Discharge

Air Sensing Tube

6 Fan Failure Switch and Discharge Air

Sensing Tube

14

14

7 Clogged Filter Switch, Fan Failure

Switch and Discharge Air
Sensing Tube

8 Novar Return Air Sensor

8

(NOVAR 2024)

9 Novar Zone Temp Sensor

(NOVAR 3051)

14

15,29

18,29

A Condensate Drain Pan Overflow

Switch

B Clogged Filter Switch

Condensate Drain Pan Overflow

8

Switch

C Fan Failure Switch

Drain Pan Overflow Switch

D Discharge Air Sensing

Condensate Drain Pan Overflow

14

14

14

14

14

14

14

and

and Condensate

14

and

2

RT-SVX22J-EN 5

Model Number Description

Switch

E Clogged Filter Switch

F Clogged Filter Switch

G Fan Failure Switch, Discharge Air

H Clogged Filter Switch

14

Switch
Overflow Switch

Air Sensing Tube
Drain Pan Overflow Switch

Sensing Tube
Drain Pan Overflow Switch

Switch
and Condensate Drain Pan Overflow
Switch

and Condensate Drain Pan

14

, Discharge Air Sensing

14

, Fan Failure

14

, Discharge

14

and Condensate

14

and Condensate

14

, Fan Failure

14

Digit 26 - System Monitoring
Controls

0 No Monitoring Controls
A Demand Control Ventilation

(CO

2

30,31

)

Digit 27 - Unit Hardware
Enhancements

0 No Enhancements
1 Stainless Steel Drain Pan

Model Number Notes

1. Available on 3-5 ton models.

2. Standard on 4-5 Ton E3,4,W and
6-10 Ton Heat Pumps and all High
Efficiency models.

3. Not available with
electromechanical controls.

4. Manual outside air damper will
ship factory supplied within the
unit, but must be field installed.

5. High pressure control is standard
on all units.

6. On 3-5 ton, multispeed direct
drive is standard on single phase
and 15 SEER. On 6-10 ton,
multispeed direct drive is
standard on all 10 ton and 7.5-8.5
ton high efficiency. Belt drive is
standard on all other units.

Digit 15 = 0

Standard Efficiency
1 Phase = High Efficiency Multispeed Direct
Drive Motor
3 Phase (3-8½ Ton) = Belt Drive
3 Phase (10 T on) = Ultra High Efficiency Direct
Drive Plenum Fan
High Efficiency
1 Phase = High Efficiency Multispeed Direct
Drive Motor
3 Phase (3-5 ton) = High Efficiency Multispeed
Direct Drive Motor
3 Phase (3-5 ton w/Dehumidification) = Belt
Drive Motor
3 Phase (7½-10 ton) = Ultra High Efficiency
Direct Drive Plenum Fan

7. Economizer with Barometric
Relief is for downflow configured
units only. Order Economizer

without Barometric Relief for
horizontal configuration.
Barometric Relief for horizontal
configured units must be ordered
as field installed accessory.

8. Through the base electric
required when ordering
disconnect/circuit breaker
options.

9. Requires use of Disconnect or
Circuit Breaker.

Not Available

Standard Efficiency
10 Ton w/575V
High Efficiency
3-5 ton w/Standard Indoor Motor w/460V

10. Standard metering devices are
TXVs.

1 1 . Fro stat cannot be field installed in

electro-mechanical units.

12. The return air smoke detector
may not fit up or work properly on
the Precedent units when used in
conjunction with 3rd party
accessories such as bolt on heat
wheels, economizers and power
exhaust. Do not order the return
air smoke detectors when using
this type of accessory.

13. Return Air Smoke Detector
cannot be ordered with Novar
Controls.

14. These options are standard when
ordering Novar Controls.

15. This option is used when
ordering Novar Controls.

16. Not available with high
temperature duct sensor
accessory.

17. Digit 15 = 2

Standard Efficiency
1 Phase = Not Available
3 Phase = Not Available
High Efficiency
1 Phase = Not Available
3 Phase (3-5 ton) = May be Ordered
3 Phase (3-5 ton w/Dehumidification) = Not
Available
3 Phase (6-10 ton) = Not Available

18. Novar Sensor utilized with
Digit 21 = (4) Novar 3051 Controls
without Zone Sensor.

19. Available for 10 ton standard
efficiency models only .

20. Available for 3, 4, 5, 6, 7½, 8½ ton
standard/high efficiency models
only.

21. Requires selection of 2” Pleated
Filters (option B or C) for Digit 16.

22. Not available on 6 ton units and
all single phase or standard
efficiency.

23. Standard on TSC 6, 7½ (single
and dual systems), 8½, 10 ton
standard efficiency mo de ls and
THC 4, 5, 6, 7½ ton high efficiency
models (except for
dehumidification models).

24. Epoxy coil and epoxy with
hailguard options are not
available for units with
microchannel condenser coil.

25. Single Zone VA V is only available
on 7.5-10 ton high efficiency and
10 ton standard efficiency
products with ReliaT el™ controls.

26. Multi-speed indoor fan ava ilable
only on 7.5 & 8.5 ton high
efficiency, and 10 ton products
with ReliaTel™ controls.

27. Motorized Outside Air Damper is
not available on Multi-Speed or
SZVAV (Single Zone Variable Air
Volume) products.

28. Frostat standard on Multi-Speed
and SZVA V (Single Zone V ariable
Air Volume)

products.

29. Novar is not available with SZVA V
products.

30. Demand Control Venti latio n no t
available with electromechanical
controls.

31. Demand Control Ventilation
Option includes wiring only. The

sensor is a field-installed only

C0

2

option.

6 RT-SVX22J-EN

General Information

Unit Inspection

As soon as the unit arrives at the job site

• V erify that the nameplate data matches the data on the
sales order and bill of lading (includin g electrical data).

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

• Visually inspect the exterior of the unit, including the
roof, for signs of shipping damage.

If the job site inspection of the unit reveals damage or
material shortages, file a claim with the carrier
immediately. Specify the type and extent of the damage on
the “bill of lading” before signing.

• Visually inspect the internal components for shippi ng
damage as soon as possible after delivery and before
it is stored. Do not walk on the sheet metal base pans.

• If concealed damage is discovered, notify th e carrier’s
terminal of damage immediately by phone and by
mail. Concealed damage must be reported within 15
days.

• Request an immediate joint inspection of the damage
by the carrier and the consignee. Do not remove
damaged material from the receiving location. Take
photos of the damage, if possible. The owner must
provide reasonable evidence that the damage did not
occur after delivery.

• Notify the appropriate sales representative before
installing or repairing a damaged unit.

Storage

Take precautions to prevent condensate from forming
inside the unit’s electrical compartments and motors if:

1. the unit is stored before it is installed; or,

2. the unit is set on the roof curb, and temporary heat is
provided in the building. Isolate all sid e panel service
entrances and base pan openings (e.g., conduit holes,
Supply Air and Return Air openings, and flue
openings) from the ambient air until the unit is ready
for start-up.

Note: Do not use the unit’s heater for temporary heat

without first completing the start-up procedure
detailed under ““Unit Start-Up,” p. 46”.

The manufacturer will not assume any responsibility for
equipment damage resulting from condensate
accumulation on the unit’s electrical and/or mechanical
components.

Unit Nameplate

A Mylar unit nameplate is located on the unit’s corner
support next to the filter access panel. It includ es the unit
model number, serial number, electrical characteristics,
refrigerant charge, as well as other pertinent unit data.

Compressor Nameplate

The nameplate for the compressors are located on the side
of the compressor.

Microchannel Condenser Barcode ID

Barcode decal used for condenser coil part identification
can be located on the vertical header and top of coil's inlet/
outlet side.

Unit Description

Before shipment, each unit is leak tested , dehydrated,
charged with re fr igerant and compressor oil, and run
tested for proper control operation.

The condenser coils are either aluminum fin, mechanically
bonded to copper tubing or all aluminum microchannel.

Direct-drive, vertical discharge condenser fans are
provided with built-in thermal overload protection.

There are two control systems offered for these units. The
electromechanical control option uses a thermostat to
perform unit functions. The ReliaTel™ Control Module is a
microelectronic control system that is referred to as
“Refrigeration Module” (RTRM). The acronym RTRM is
used extensively throughout this document when
referring to the control system network.

These modules through Proportional/Integral control
algorithms perform specific unit functions that governs
unit operation in response to; zone temperature, supp ly air
temperature, and/or humidity conditions depending on
the application. The stages of capacity control for these
units are achieved by starting and stopping the
compressors.

The RTRM is mounted in the control panel and is factory
wired to the respective internal components. The RTRM
receives and interprets information from other unit
modules, sensors, remote panels, and customer binary
contacts to satisfy the applicable request for cooling.

Economizer Control Actuator (Optional)

Electromechanical Control

The ECA monitors the mixed air temperature, ambient dry
bulb temperature and local minimum position setpoint
sensors, if selected, to control dampers to an accuracy of
+/- 5% of stroke. The actuator is spring returned to the
closed position any time that power is lost to the unit. It is
capable of delivering up to 25 inch pound s of to rque an d
is powered by 24 VAC.

ReliaTel™ Control

The ECA monitors the mixed air temperature, return air
temperature, minimum position setpoint (local or
remote), power exhaust setpoint, CO
ambient dry bulb/enthalpy sensor or comparative
humidity (return air humidity against ambient humidity)

setpoint, CO2, and

2

RT-SVX22J-EN 7

General Information

sensors, if selected, to control dampers to an accuracy of
+/- 5% of stroke. The actuator is spring returned to the
closed position any time that power is lost to the unit. It is
capable of delivering up to 25 inch pounds of torque and
is powered by 24 VAC.

RTCI - ReliaTel™ Trane Communication
Interface (Optional)

This module is used when the application calls for an
ICSTM building management type control system. It
allows the control and monitoring of the system through
an ICS panel. The module can be ordered from the factory
or ordered as a kit to be field installed. Follow the
installation instruction that ships with each kit when field
installation is necessary.

RLCI - ReliaTel™ LonTalk Communication
Interface (Optional)

This module is used when the application calls for an
ICSTM building management type control system that is
LonT alk. It allows the control and monitoring of the system
through an ICS panel. The module can be ordered from the
factory or ordered as a kit to be field installed. Follow the
installation instruction that ships with each kit when field
installation is necessary.

RBCI - ReliaTel™ BACnet Communications
Interface (Optional)

This module is used when the application calls for an open
BACnet protocol. It allows the control and monitoring of
the system through an ICS panel. The module can be
ordered from the factory or as a kit to be field installed.
Follow the installation instructions that ships with eac h kit
when field installation is necessary.

RTOM - ReliaTel™ Options Module (Standard
on 17 Plus, 7.5 Ton & 8.5 Ton High Efficiency
with ReliaTel, 10 Ton with ReliaTel)

The RTOM monitors the supply fan proving, clogged filter,
supply air temperature, exhaust fan setpoint, supply air
tempering, Frostat™, smoke detector, and V ariable Speed
Fan Control (17 Plus units only). Refer to system input
devices and functions for operation.

System Input Devices & Functions

The RTRM must have a zone sensor or thermostat input in
order to operate the unit. The flexibility of having several
mode capabilities depends upon the type of zone sensor or
thermostat selected to interface with the RTRM.

The descriptions of the following basic Input Devices used
within the RTRM network are to acquaint the operator with
their function as they interface with the various modules.
Refer to the unit’s electrical schematic for the specific
module connections.

The following controls are available from the factory for
field installation.

Supply Fan Failure Input (Optional)

The Fan Failure Switch can be connected to sense indoor
fan operation:

FFS (Fan Failure Switch) If air flow through the unit is not
proven by the differential pressure switc h connected to the
RTOM (factory set point 0.07 “w.c.) within 40 seconds
nominally, the RTRM will shut off all mechanical
operations, lock the system out, send a diagnostic to ICS,
and the SERVICE output wi ll flash. The system will remain
locked out until a reset is initiated either manually or
through ICS.

Clogged Filter Switch (Optional)

The unit mounted clogged filter switch monitors the
pressure differential across the return air filters. It is
mounted in the filter section and is connected to the
RTOM. A diagnostic SERVICE signal is sent to the remote
panel if the pressure differential across the filters is at least

0.5" w.c. The contacts will automatically open when the
pressure differential across the filters decreases to
approximately 0.4" w.c. The clogged filter output is
energized when the supply fan is operating and the
clogged filter switch has been closed for at least 2 minutes.
The system will continue to operate regardless of the
status of the filter switch.

Note: On units equipped with factory installed MERV 13

filters, a clogged filter switch with different
pressure settings will be installed. This switc h will
close when the differential pressure is
approximately 0.8' w.c. and open when the
differential falls to 0.7" w.c.

Condensate Drain Pan Overflow Switch
(Optional)

ReliaTel Option

This input incorporates the Condensate Overflow Switch
(COF) mounted on the drain pan and the ReliaTel Options
Module (RTOM). When the condensate level reaches the
trip point for 6 continuous seconds, the RTOM will shut
down all unit functions until the overflow condition has
cleared. The unit will return to normal operation after 6
continuous seconds with the COF in a non-tripped
condition. If the condensate level causes unit shutdown
more than 2 times in a 3 days period, the unit will be
locked-out of operation requiring manual reset of
diagnostic system through Zone Sensor or Building
Automation System (BAS). Cycling unit power will also
clear the fault.

Electromechanical Option

This input incorporates the condensate overflow switch
(COF), COF Relay , COF Time Delay . When the condensate
level reaches the trip point, the COF relay energizes and
opens the 24VAC control circuit which disables the unit.
Once the 24VA C control circuit is opened, a delay timer will
prevent unit start-up for three minutes.

8 RT-SVX22J-EN

General Information

Compressor Disable (CPR1/2)

This input incorporates the low pressure control (LPC) of
each refrigeration circuit and can be activated by opening
a field supplied contact installed on the LTB.

If this circuit is open before the compressor is started, the
compressor will not be allowed to operate. Anytime this
circuit is opened for 1 continuous second during
compressor operation, the compressor for that circuit is
immediately turned “Off”. The compressor will not be
allowed to restart for a minimum of 3 minutes should the
contacts close.

If four consecutive open conditions occur during the first
three minutes of operation, the compressor for that circuit
will be locked out, a diagnostic communicated to the
remote panel (if installed), and a manual reset will be
required to restart the compressor.

Low Pressure Control

ReliaTel Control

When the LPC is opened for 1 continuous second, the
compressor for that circuit is turned off immediately . The
compressor will not be allowed to restart for a minimum
of 3 minutes.

If four consecutive open conditions occur during an active
call for cooling, the compressor will be locked out, a
diagnostic communicated to ICS™, if applicable, and a
manual reset required to restart the compressor. On dual
compressor units only the affected compressor circuit is
locked out.

Electromechanical Control

When the LPC is opened, the compre ssor for that circuit is
turned off immediately . The compressor will restart when
the LPC closes.

High Pressure Control

ReliaTel Control

The high pressure controls are wired in series between the
compressor outputs on the RTRM and the compress or
contactor coils. If the high pressure control switc h opens,
the RTRM senses a lack of current while calling for cooling
and locks the compressor out.

If four consecutive open conditions occur during an active
call for cooling, the compressor will be locked out, a
diagnostic communicated to ICS™, if applicable, and a
manual reset required to restart the compressor. On dual
compressor units only the affected compressor circuit is
locked out.

Electromechanical Control

When the HPC is opened, the compressor for that circuit is
turned off immediately . The compressor will restart when
the HPC closes.

Power Exhaust Control (Optional)

ReliaTel Control

The power exhaust fan is started whenever the position of
the economizer dampers meets or exceed the power
exhaust setpoint when the indoor fan is on.

With the optional ventilation override accessory, the
power exhaust fan is independent of the indoor fan.

The setpoint panel is located in the return air section and
is factory set at 25%.

Electromechanical Control

The power exhaust fan is started whenever the indoor fan
is on and the adjustable damper limit switc h DLS is closed.

Lead/Lag Control (Dual Circuit Only)

ReliaTel Control Only

Lead/Lag is a selectable input located on the RTRM. The
RTRM is configured from the factory with the Lead/Lag
control disabled. T o activate the Lead/Lag function, simply
cut the wire connected to J3-8 at the RTRM. When it is
activated, each time the designated lead compressor is
shut off due to the load being satisfied, the lead
compressor or refrigeration circuit switches. When the
RTRM is powered up, i.e. af ter a power failure, the control
will default to the number one circuit compressor. Lead/
Lag is not available on Multi-Speed Indoor Fan, or Single
Zone Variable Air Volume (SZVAV) products.

Zone Sensor Module (ZSM) (BAYSENS106*)

This electronic sensor features three system switch
settings (Heat, Cool, and Off) and two fan settings (On

and Auto). It is a manual changeover control with single
setpoint. (Cooling Setpoint Only)

Zone Sensor Module (ZSM) (BAYSENS108*)

This electronic sensor features four system switch settings
(Heat, Cool, Auto, and Off) and two fan settings (On and
Auto). It is a manual or auto changeover control with dual
setpoint capability. It can be used with a remote zone
temperature sensor BAYSENS077*.

Zone Sensor (BAYSENS110*)

This electronic sensor features four system switch settings
(Heat, Cool, Auto, and Off) and two fan settings (On and
Auto) with four system status LED’ s. It is a manual or auto
changeo ver control with dual setpoint capabili ty. It can be
used with a remote zone temperature sensor
BAYSENS077*.

Wall Mounted Relative Humidity Sensor
(BAYSENS036*)

Field installed, wall mounted humi dity sensor is used to
control activation of Enhanced Dehumidification and the
Hot Gas Reheat Dehumidification options. Humidity set
points can be selected for relative humidity levels between

RT-SVX22J-EN 9

General Information

40% and 60% by adjusting the DEHUMID setting on the
ReliaTel Options Module. See Figure 42, p. 34.

Duct Mounted Relative Humidity Sensor
(BAYSENS037*)

Field installed, duct mounted humidity sensor is used to
control activation of Enhanced Dehumidification and the
hot gas reheat dehumidification options. Humidity set
points can be selected for relative humidity levels between
40% and 60% by adjusting the DEHUMID setting on the
ReliaTel Options Module. See Figure 42, p. 34.

Programmable Zone Sensor - (BAYSENS119*)

This 7 day programmable sensor features 2, 3 or 4 periods
for Occupied or Unoccupied programming per d ay. If the
power is interrupted, the program is retained in
permanent memory. If power is off for an extended period
of time, only the clock and day may have to be reset.

The Zone Sensor allows selection of 2, 3 or 4 system
modes (Heat, Cool, Auto, and Off), two fan modes (On and
Auto). It has dual temperature selection with
programmable start time capability.

The occupied cooling set point ranges between 45 and 98
º F. The heating set point ranges between 43 and 96ºF.

A liquid crystal display (LCD) displays zone temperature,
temperature set points, day of the week, time, and
operational mode symbols.

The Option Menu is used to enable or disable applicable
functions, i.e.; Morning Warm-up, Economizer minimum
position override during unoccupied status, Fahrenheit or
Centigrade, Supply air tempering, Remote zone
temperature sensor, 12/24 hour time display, Smart fan,
and Computed recovery.

During an occupied period, an auxiliary relay rated for 1.25
amps @ 30 volts AC with one set of single pole double
throw contacts is activated.

Status Inputs (4 Wires Optional)

The ZSM can be wired to receive four (4) operating status
signals from the RTRM (HEAT, COOL, SYSTEM “ON”,
SERVICE).

Four (4) wires from the RTRM should be connected to the
appropriate terminals (7, 8, 9 & 10) on the ZSM.

Remote Zone Sensor (BAYSENS073*)

This electronic sensor features remote zone sensing and
timed override with over ride cancellation. It is used with a
Trane Integrated Comfort™ building management
system.

Remote Zone Sensor (BAYSENS074*)

This electronic sensor features single setpoint capability
and timed override with override cancellation. It is used
with a Trane Integrated Comfort™ building management
system.

Remote Zone Sensor (BAYSENS016*)

This bullet type temperature sensor can be used for
outside air (ambient) sensing, return air temperature
sensing, supply air temperature sensing, remote
temperature sensing (uncovered). Wiring procedures vary
according to the particular application and equipment
involved. Refer to the unit’s wiring diagrams for proper
connections.

Remote Zone Sensor (BAYSENS077*)

This electronic sensor can be used with BAYSENS106*,
108*, 110*, 119* Remote P anels. When this sensor is wired
to a BA YSENS119* Remote P anel, wiring must be 18 A WG
Shielded Twisted P air (Belden 8760 or equivalent). Refer to
the specific Remote Panel for wiring details.

Wireless Zone Sensor (BAYSENS050)

This electronic sensor features five system settings (Auto,
Off, Cool, Heat, and Emerg ency Heat) and with On and
Auto fan settings. It is a manual or auto c hangeover control
with dual setpoint capability. Other features include a
timed override function, lockable system settings, and
Fahrenheit or Celsius temperature display. Included with
the wireless zone sensor will be a receiver that is to be
mounted inside the unit, a mounting bracket, and a wire
harness.

Electromechanical Control

The unit must have a thermostat to operate.

•BAYSTAT151

• Single Stage - 1 Heat/1 Cool

•BAYSTAT155

• Multi Stage - 3 Heat/2 Cool - Can be Used for
Economizer Operation

• BAYSENS150

• Multi stage - 3 Heat/2 Cool Programmable
Thermostat

High Temperature Sensor (BAYFRST001*)

This sensor connects to the RTRM Emergency Stop Input
on the L TB and provides high limit “sh utdown” of the unit.
The sensor is used to detect high temperatures due to a
high thermal event in the air conditioning or ventilation
ducts. The sensor is designed to mount directly to the
sheet metal duct. Each kit contains two sensors. The return
air duct sensor (X1310004001) is set to open at 135ºF. The
supply air duct sensor (X1310004002) is set to open at
240ºF. The control can be reset after the temperature has
been lowered approximately 25ºF below the cutout
setpoint.

Evaporator Frost Control

ReliaTel™ Option

This input incorporates the Frostat™ control (FOS)
mounted in the indoor coil circuit and can be activated by

10 RT-SVX22J-EN

General Information

closing a field supplied contact installed in parallel with
the FOS.

If this circuit is open before the compressor is started, the
compressor will not be allowed to operate. Anytime this
circuit is opened for 1 continuous second during
compressor operation, the compressor for that circuit is
immediately turned “Off”. The compressor will not be
allowed to restart for a minimum of 3 minutes should the
FOS close.

Frostat is standard on multi-speed indoor motors and
single zone VAV products (SZVAV).

Electromechanical Option

This input incorporates the Frostat™ control (FOS)
mounted in the indoor coil circuit and can be activated by
opening a field supplied contact installed in series with the
FOS.

If this circuit is open before the compressor is started, the
compressor will not be allowed to operate. Anytime this
circuit is opened during compressor operation, the
compressor for that circuit is immediately turned “Of f”. The
compressor will restart when the FOS closes.

Discharge Line Temp Switch (DLTS)

The DL TS is looped in series with HPC and LPC. It prevents
compressor from overheating (over 300 Fº dome temp) in
case of indoor fan failure (cooling) or outdoor fan failure
(heating).

Smoke Detector Sensor (Optional)

This sensor provides high limit “shutdown” of the unit and
requires a manual reset. The sensor is used to detect
smoke in the air conditioning or ventilation ducts.

Notes:

• The supply air smoke detector samples supply air. The

return and plenum air smoke detectors sample return
air. The smoke detectors are designed to shut off the
unit if smoke is sensed. This function is performed by
sampling the airflow enteri ng the unit at the return air
opening. Follow the instructions provided below to
assure that the airflow through the unit is sufficient for
adequate sampling. Failure to follow t hese instructions
will prevent the smoke detectors from performing its
design function.

• Airflow through the unit is affected by the amount of
dirt and debris accumulated on the indoor coil and
filters. To insure that airflow through the unit is
adequate for proper sampling by the return air smoke
detector, complete adherence to the maintenance
procedures, including recommended intervals
between filter changes, and coil cleaning is required.

• Periodic chec ks and maintenance procedures must be
performed on the smoke detector to insure that it will
function properly . For detailed instructions concerning
these checks and procedures, refer to the appropriate
section(s) of the smoke detector Installation and

Maintenance Instructions provided with the literature
package for this unit.

In order for the supply air smoke detector or return air
smoke detector to properly sense smoke in the supply air
stream or return air stream, the air velocity entering the
smoke detector unit must be between 500 and 4000 feet
per minute. Equipment covered in this manual will
develop an airflow velocity that falls within these limits
over the entire airflow range specified in the evaporator
fan performance tables.

Phase Monitor

This sensor monitors voltage between the 3 conductors of
the 3 phase power supply. Two LED lights are provided:

• The green light indicates that a balanced 3 phase
supply circuit is properly connected.

• The red light indicates that unit operation has been
prevented. There are two conditions that will prevent
unit operation:

• The power supply circuit is not balanced with the

proper phase sequence of L1, L2, L3 for the 3
conductors of a 3 phase circuit.

• The line to line voltage is not between 180 v olts and

633 volts.

Single Zone Variable Air Volume /
Displacement Ventilation (Optional)

This sensor offers full supply fan modulation across the
available airflow range. In addition to full supply fan
modulation, the unit controls the discharge air
temperature to a varying discharge air temperature
setpoint in order to maintain Space Temperature.

RT-SVX22J-EN 11

Unit Dimensions

TSC036-060E & THC036-037E UnitsTSC036-060E & THC036-037E Units

TSC072-120F, THC047-120E, & THC048-092F UnitsTSC072-120F, THC047-120E, & THC048-092F Units

Unit Clearances

Figure 1, p. 12 illustrates the minimum operating and

service clearances for either a single or multiple unit

Figure 1. Typical installation clearances for single & multiple unit applications

installation. These clearances are th e minimum distances
necessary to assure adequate serviceability, cataloged
unit capacity, an d peak operating efficiency.

Providing less than the recommended clearances may
result in condenser coil starvation, “short-circuiting” of
exhaust and economizer airflows, or recirculation of hot
condenser air.

12 RT-SVX22J-EN

Figure 2. 3-5 ton standard efficiency, 3 ton high efficiency

7

4444 MMMM

4444 MMMM

10381038 MMMM

10531053 MMMM

Note: All dimensions are in inches/millimeters.

Unit Dimensions

Figure 3. 3-5 ton standard efficiency, 3 ton high efficiency - roof curb

Note: All dimensions are in inches/millimeters.

RT-SVX22J-EN 13

Unit Dimensions

CLEARANCE 36” (914 MM)

Figure 4. 3-5 ton standard efficiency, 3 ton high efficiency - unit clearance and roof opening

Note: All dimensions are in inches/millimeters.

Figure 5. 6, 7½ (single) ton standard efficiency, 4 - 5 ton high efficiency

Note: All dimensions are in inches/millimeters.

14 RT-SVX22J-EN

Figure 6. 6, 7½ (single) ton standard efficiency, 4 - 5 ton high efficiency - roo f curb

(2130 MM)

(356 MM)

Note: All dimensions are in inches/millimeters.

Unit Dimensions

Figure 7. 6, 7½ (single) ton standard efficiency, 4 - 5 ton high efficiency - unit clearance and roof opening

Note: All dimensions are in inches/millimeters.

RT-SVX22J-EN 15

Unit Dimensions

(2130 MM)

(356 MM)

Figure 8. 7½ ton (dual) - 10 ton standard efficiency, 6 & 7½ (microchannel) ton high efficiency

Note: All dimensions are in inches/millimeters.

Figure 9. 7½ ton (dual) - 10 ton standard efficiency, 6 & 7½ (microchannel) ton high efficiency - roof curb

Note: All dimensions are in inches/millimeters.

16 RT-SVX22J-EN

Unit Dimensions

Figure 10. 7½ ton (dual) - 10 ton standard efficiency, 6 & 7½ (microchannel) ton high efficiency - unit clearance and

roof opening

Note: All dimensions are in inches/millimeters.

Figure 11. 7½ (dehumidification) - 10 ton high efficiency

Note: All dimensions are in inches/millimeters.

RT-SVX22J-EN 17

Unit Dimensions

13/4”

(

44 MM

)

2”

(

51 MM

)

84 1/2”

(2146 MM)

83 7/8”

(2130 MM)

60 3/8”

(1534 MM)

59 7/8”

(

1521 MM

)

14”

(

356 MM

)

2”

(

51 MM

)

56 3/8”

(1432 MM)

34 3/8”

(873 MM)

34 3/8”

(873 MM)

18 1/2”

(470 MM)

18 1/2”

(470 MM)

1”

(

25 MM

)

1”

(

25 MM

)

1”

(

25 MM

)

65/8”

(

168 MM

)

80 1/2”

(2045 MM)

CL

EARANCE 18” (4

57 MM

)

FO

R

H

O

RIZO

NTAL

CLEARAN

C

E36”(914 MM)

FO

R

DO

WNFLOW

99 11/16”

(2532 MM)

63 3/16”

(1605 MM)

Figure 12. 7½ (dehumidification) - 10 ton high efficiency - roof curb

Note: All dimensions are in inches/millimeters.

Figure 13. 7½ (dehumidification) - 10 ton high efficiency- unit clearance and roof opening

Note: All dimensions are in inches/millimeters.

18 RT-SVX22J-EN

Installation

Pre-Installation

WARNING

Fiberglass Wool!

Product contains fiberglass wool. Disturbing the
insulation in this product during installation,
maintenance or rep air will expose you to airborne
particles of glass wool fibers and ceramic fibers known
to the state of California to cause cancer through
inhalation. You MUST wear all necessary Personal
Protective Equipment (PPE) including gloves, eye
protection, mask, long sleeves and pants when working
with products containing fiber glass w ool. Exposition t o
glass wool fibers without all necessary PPE equipment
could result in cancer, respiratory, skin or eye irritation,
which could result in death or serious injury.

Precautionary Measures

• Avoid breathing fiberglass dust.

• Use a NIOSH approved dust/mist respirator.

• Avoid contact with the skin or eyes. W ear long-sleeved,
loose-fitting clothing, gloves, and eye protection.

• Wash clothes separately from other clothing: rinse
washer thoroughly.

• Operations such as sawing, blowing, tear-out, and
spraying may generate fiber concentrations requiring
additional respiratory protection. Use the appropriate
NIOSH approved respiration in these situations.

First Aid Measures

Eye Contact - Flush eyes with water to remove dust. If
symptoms persist, seek medical attention.

Skin Contact - Wash af fected areas gently with soap and
warm water after handling.

If an element has detached from its ceramic insulator,
carefully put it back into place.

Replace the heater elements if they present symptoms
noted in item 2 or 3 above.

Procedure

WARNING

Heavy Objects!

Ensure that all the lifting equipment used is properly
rated for the we ight of th e unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician whic h coul d result in death or serious injury.

WARNING

Improper Unit Lift!

Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or ser i ous injury and possi ble equipmen t
or property-only damage.

Figure 14. Corner weights

WARNING

Hazardous Voltage!

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

Remove power to the unit and gain access to the electric
heat elements by removing the horizontal supply cover.
Visually inspect the heater elements for the following:

• Elements that are no longer secured to the white
ceramic insulator.

• Elements touching each other or touching metal.

• Severely kinked, drooping, or broken elements.

RT-SVX22J-EN 19

Installation

Table 1. Maximum unit & corner weights (lbs) and center of gravity dimensions (in.) - cooling models

Maximum Model

Unit

Ton Shipping Net A B C D Length Width

3 TSC036E/THC036E 555 481 157 122 95 107 31 19
4 TSC048E 586 511 167 129 101 114 31 19
5 TSC060E 636 561 183 142 111 125 31 19

6 TSC072F 762 667 218 186 131 132 44 21
7½ TSC090F 781 686 222 195 136 134 44 21
7½ TSC092F 940 797 249 235 163 149 46 21
8½ TSC102F 999 856 264 239 177 175 45 22

10 TSC120F 1058 960 320 218 233 189 40 24

3 THC037E 614 544 163 144 111 125 33 19

4 THC048E/THC047E 787 692 220 178 132 163 40 23

4 THC048F 737 642 208 177 128 130 44 22

5 THC060E/THC067E 841 746 241 193 139 173 39 22

5 THC060F 774 679 219 189 135 137 43 21

6 THC072F 883 740 228 219 155 138 47 21
7½ THC092E 1445 1228 347 330 269 283 49 28
7½ THC092F 1026 928 315 209 224 180 40 24
8½ THC102E 1472 1255 359 335 271 290 48 28

10 THC120E 1462 1245 353 332 271 288 48 28

(a) Weights are approximate.
(b)Corner weights are given for information only.

Model No.

Weights

(a)

Corner Weights

(b)

Center of Gravity

(in.)

Figure 15. Rigging and center of gravity

Table 2. Facto r y in sta lled options (fiops)/accessory net weights (lbs)

TSC036E-060E

THC036E/

THC037E

Net Weight Net Weight Net Weight Net Weight Net Weight

Accessory 3-5 Ton 4-5 Ton 6-8½ Ton 7½-10 Ton 7½-10 Ton

Barometric Relief 7 10 10 10 10
Belt Drive Option (3 phase only) 31 31 — — —
Coil Guards 12 20 20 20 30

continued on next page

THC047E-067E

THC048E/F-

060E/F

(a),(b)

TSC072F-102F

THC072F

THC092F,

TSC120F

THC092E-

120E

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