Trane Touch-Screen Programmable Thermostat Owner's manual

Trane™ Touch-screen Programmable Thermostat

July 2011 BAS-SVX44A-EN

Installation and Operation

Trane Part Number:

X13511538-01

Clarksville Part Number:

BAYSTAT152A

Service Part Number:

THT02775

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 hazardous and requires specific knowledge and

training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or

serious injury. When working on the equipment, observe all precautions in the literature and on the tags,

stickers, and labels that are attached to the equipment.

2 BAS-SVX44A-EN

Copyright

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 the written permission of Trane. 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.

Trademarks

Trane and its logo are trademarks of Trane in the United States and other countries. All

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

Warnings, Cautions, and Notices

Warnings, cautions, and notices are provided in appropriate places throughout this

document:

WARNING: Indicates a potentially hazardous situation which, if not avoided,

could result in death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided,

could result in minor or moderate injury. It could also be used to alert against

unsafe practices.

NOTICE: Indicates a situation that could result in equipment or property-

damage-only accidents.

Table of Contents

BAS-SVX44A-EN 3

Overview .............................................................. 5

Packaged Contents and Tools ............................................ 5

Packaged Contents ................................................. 5

Tools ............................................................. 5

Specifications and Dimensions .......................................... 6

Product Features and Functions .......................................... 7

Features .......................................................... 7

Functions ......................................................... 7

Pre-Installation ......................................................... 8

Location Considerations ............................................ 8

Height Requirements ............................................... 8

Mounting Surfaces ................................................. 8

Maximum Wire Length ............................................. 9

Installation and Wiring ................................................. 10

Mounting the Thermostat and Cover Removal ........................ 10

Mounting the Backplate ....................................... 10

Wiring and Wiring Diagrams ....................................... 12

Wiring ...................................................... 12

Terminal Identification ........................................ 13

Wiring Diagrams ............................................. 13

Thermostat Cover Replacement ..................................... 18

Power, System Tests, and Software Reset ...............................19

Applying Power ................................................... 19

Power-up Test .................................................... 19

System Tests ..................................................... 20

Software Reset ................................................... 22

Configuration Option Setup ............................................23

Installation Options ............................................... 24

Operation ............................................................. 27

Thermostat Icon Descriptions ....................................... 27

Functions .............................................................28

Time Setup ...................................................... 28

Dehumidify Setup ................................................ 28

System Mode Setup ..............................................29

Fan Mode ....................................................... 29

4 BAS-SVX44A-EN

Temporary Override (TOV) Setup ................................... 30

General Notes: ............................................... 30

Schedule Setup ................................................... 31

Schedule Display Mode ....................................... 31

Day/Period/Time Schedule Change Mode ........................32

Setpoint/Fan Schedule Change Mode ........................... 33

General Notes for All Schedule Modes ........................... 34

Other Thermostat Functions ............................................ 36

Heat/Cool Indicator Display ......................................... 36

Non-programmable Mode ......................................... 37

Filter Change ..................................................... 38

Clean Screen .....................................................38

Local/Remote/Outdoor Temperature Display and Control .............. 39

Local/Remote Humidity Display and Control .......................... 40

System Lockout ................................................... 41

To lock the thermostat: ........................................ 41

To unlock the thermostat: ...................................... 41

Temperature Cycle Control ............................................. 42

Other Functional Components .......................................... 44

Sleep Mode ...................................................... 44

Changeover Operation ............................................. 44

Changeover Valve Control ......................................... 44

Extension of Fan-on Time .......................................... 45

Economizer/Time of Day (TOD) ..................................... 45

Configuration, Time, and Programming Retention ..................... 45

Heat/Cool Relay Confirmation ......................................45

Deadband ........................................................45

Temperature Display Offset ........................................ 46

Humidity Display Offset ............................................ 46

LCD Backlight .................................................... 46

Compressor Protection ............................................46

Permanent Memory Data .......................................... 46

Compressor and Auxiliary Heat Lockout ............................. 47

Error Codes and Exceptions ............................................ 48

Error Codes ...................................................... 48

Exceptions ....................................................... 49

Troubleshooting ....................................................... 50

BAS-SVX44A-EN 5

Overview

The Trane™ Touch-screen Programmable Thermostat is for use with conventional Rooftop Units

(RTU) air conditioners and heat pumps. These units are compact, easy to install, configure, and

operate.

This installation and operation manual provides information about the following:

• Specifications and dimensions

• Product features and functions

• Pre-installation requirements

• Installation and wiring

• Power, system tests, and software reset

• Configuration option setup

• Other thermostat functions

• Temperature cycle control

• Other functional components

• Error codes and exceptions

• Troubleshooting

Note: Before beginning installation, visually inspect all parts for obvious defects for damage. All

components are thoroughly inspected before leaving the factory. Any claims for damage

incurred in shipping should be filed immediately with the carrier.

Packaged Contents and Tools

Packaged Contents

Each programmable thermostat ships with the following:

• One (1) Trane Touch-screen Programmable Thermostat

• One (1) Installation/Configuration Instructions (X39641190-01)

• One (1) Setup/Programming Instructions (X39641189-01)

• One (1) bag of:

- Two (2) machine screws

- Two (2) wood screws

- One (1) security screw

- Two (2) wall anchors

- Two (2) terminal blocks; an 8-pin and a 6-pin

Tools

• One (1) 1/8 inch, flat-bladed service screwdriver

• One (1) small Phillips screwdriver

• Level

• Drill

• Hammer

• Wire cutter/stripper

6 BAS-SVX44A-EN

Specifications and Dimensions

The following table and illustration provides the thermostat specifications and dimensions.

Table 1. Specifications and dimensions

Storage

Temperature: –4°F to 158°F (–20°C to 70°C)

Relative Humidity: Between 5% and 95% (noncondensing)

Operating

Temperature: 32°F to 122°F (0°C to 50°C)

Humidity: Between 5% and 95% (noncondensing)

Input Power:

24 Vac (minimum 18 Vac/maximum 32 Vac), 50Hz to 60Hz

Note: Frequency is selected using Configuration Option #0190.

Power Consumption: <2 Watts @24 Vac RMS nominal

Wire Size: 18 to 22 AWG

Output Terminal Rating: 1A @ 30 Vac

Temperature Accuracy: ±1.4°F (0.8°C) from 50°F to 90°F (10°C to 32.2°C)

Temperature Resolution: Configurable @1°F, 0.5°F, 1°C, 0.5C, 0.1°C

Humidity Accuracy: ±3% RH from 20% to 80% RH

Humidity Resolution: 1%

Housing Material:

• Polycarbonate/ABS Blend

• UV protected

• U.L. 94-5VA flammability rating

Mounting: 3.24 in (8.26 cm) for two mounting screws (supplied)

Dimensions

5.90 in

(150 mm)

1.30 in

(33 mm)

0.3 in

(8 mm)

4.65 in

(118 mm)

BAS-SVX44A-EN 7

Product Features and Functions

The following is a list of features and functions of the programmable thermostat.

Features

Liquid Crystal Display (LCD) Touch Screen: with symbols for temperature, setpoints, and system

operating modes. In addition, the thermostat has settings for the day of the week, time of day, and

occupancy.

• System Modes:

- Heat

- Cool

- Auto

- Off

- Emergency heat

• Fan Modes:

- On

- Auto

• System Configurations:

- 1 heat/1 cool conventional

- 1 heat/1 cool heat pump

- 1 heat conventional (with and without fan)

- 1 cool conventional

- 2 heat/1 cool heat pump

- 2 heat/2 cool conventional

- 2 heat/1 cool conventional

- 1 heat/2 cool conventional

- 2 heat/2 cool heat pump

- 3 heat/2 cool heat pump

• Time and Dehumidify Settings

• Temporary Override (TOV)

• Scheduling:

- All days: (Mo, Tu, We, Th, Fr, Sa, Su)

- Five (5) days, plus one day, plus one day: (Mo, Tu, We, Th, Fr), (Sa),(Su)

- Five (5) days, plus two days,: (Mo, Tu, We, Th, Fr,) (Sa, Su)

- Seven (7) individual days [default]: (Mo) (Tu) (We) (Th) (Fr) (Sa) (Su)

• Temperature Cycling Control (Patent Pending):

- Integrated adjustable deadband staging

- Configurable cycles per hour (CPH) heat/cool cycles

Functions

The touch-screen programmable thermostat provides additional functions that provide more

flexibility and control. Refer to the sections, “Other Thermostat Functions,” p. 36 and “Other

Functional Components,” p. 44.

8 BAS-SVX44A-EN

Pre-Installation

This section provides the following pre-installation information:

• Location considerations

• Height requirements

• Mounting surfaces

• Maximum wire length

Location Considerations

When selecting a location, avoid the following areas when installing the thermostat:

• Direct sunlight

• Direct airstream of air diffusers

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

• Close proximity to heat sources such as sunlight, appliances, concealed pipes, chimneys, or

other heat-generating equipment

• Drafty regions

• Dead spots behind doors, projection screens, or corners

• Walls subject to high vibration

• High humidity regions

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

Height Requirements

It is recommended to mount the thermostat a maximum distance of 54 inches (137 cm) above the

floor. If a parallel approach by a person in a wheelchair is required, reduce the maximum height

to 48 inches.

Note: For further details regarding wheelchair requirements, refer to ADA Standards for

Accessible Design/4.27 Controls and Operating Mechanisms/4.27.3 Height online at

www.ADA.gov and to local building codes.

Mounting Surfaces

The thermostat can be mounted to any sturdy, vertical surface. Plastic-threaded anchors and M3.5

x 20 mm screws are provided for mounting to plaster or wallboard; 6-32 x 3/4 inch machine screws

are provided for mounting directly to a standard electrical device box. For other surface types, the

user must provide fasteners that are appropriate for the surface.

BAS-SVX44A-EN 9

Pre-Installation

Maximum Wire Length

The thermostat may not function properly if the total resistance of any of the thermostat wires

exceeds 2.5 ohms (refer to Table 2).

Important: Ensure

that the wires from the thermostat to the HVAC equipment do not exceed

lengths shown in Table 2. Best

practice: use shorter wire lengths.

18 AWG (0.75 mm

2

) 385 ft (117 m) 2,500 ft (762 m) 385 ft (117 m)

20 AWG (0.50 mm

2

) 240 ft (73 m) 1,500 ft (457 m) 240 ft (73 m)

22 AWG (0.33 mm

2

) 150 ft (46 m) 1,000 ft (305 m) 150 ft (46 m)

Table 2. Maximum wire lengths

Copper Wire size

Maximum Recommended Wire

Length From Thermostat to HVAC

Equipment

Remote

Temperature Sensor

to Thermostat

(Max

(a)

)

Remote Humidity Sensor to

Thermostat (Max

(a)

)

(a) Temperature and humidity readings can be adjusted in the configuration setup for longer wire runs.

10 BAS-SVX44A-EN

Installation and Wiring

This section provides information about the following:

• Mounting the thermostat and cover removal

• Wiring and wiring diagrams

• Thermostat cover replacement

Mounting the Thermostat and Cover Removal

Before beginning installation, it is recommended to re-read the section, “Pre-Installation,” p. 8 and

then ensure that the following conditions are met:

• A wire access hole is available at the thermostat location

• The wires are accessible through the hole

• The wires are attached to the appropriate terminals on the HVAC equipment

• There is continuity (and not more than 2.5 ohms resistance) between the thermostat location

and the HVAC equipment

• The wires are accurately labeled or color coded

Mounting the Backplate

WARNING

Hazardous voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper

lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to

disconnect power before servicing could result in death or serious injury.

NOTICE

Equipment damage!

Applying excessive voltage to the thermostat can permanently damage it.

To mount the backplate:

1. Shut off the power to all HVAC equipment. If the security screw was previously installed,

remove it (refer to

Figure 1, p. 11).

BAS-SVX44A-EN 11

Installation and Wiring

Figure 1. Security screw removal and cover release

2. Push the cover thumb tab to release the cover from the backplate as shown above.

3. Route the wires through the opening in the backplate as shown below. Wires should be marked

to

ensure proper connection to terminals.

Figure 2. Wire routing, mounting, and mounting dimensions

4. If mounting the backplate directly to a wall surface, hold the backplate against the surface and

then

level and mark the fastener locations.

5. Secure the backplate using appropriate fasteners (refer to the section, “Mounting Surfaces,”

p. 8.) The thermostat must be level and plumb to ensure proper air movement through the

thermostat enclosure.

Security Screw

NOTE: If the

security screw is

installed, remove

it before

attempting to

remove the cover.

Cover thumb tab

Dimension

Programmable

Touch-screen

H 3.3 in. (85 mm)

W 5.9 in. (150 mm)

D 1.3 in. (33 mm)

M 3.3 in. (85 mm)

W

H

D

M

Two (2) slots for standard #8-32 (M4),

2”x4” junction box mounting screws.

12 BAS-SVX44A-EN

Installation and Wiring

Wiring and Wiring Diagrams

Wiring

WARNING

Hazardous voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper

lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to

disconnect power before servicing could result in death or serious injury.

NOTICE

Equipment damage!

Applying excessive voltage to the thermostat can permanently damage it.

Note: Terminal

blocks are included with the mounting hardware contained in a small plastic bag

(new installation) or remove terminal blocks from pin header (existing installation).

To wire the thermostat:

1. Connect the wires to the terminal block(s) by:

a. Removing approximately 1/4 inch (6 mm) of insulation from the wires.

b. Using the terminal block screws to securely fasten each wire into the terminal block.

Note: Refer

to Table 3, p. 13 and the wiring diagrams on page 14- through 18 to

determine the correct terminal for each wire.

In some cases the terminal labels (such as Y, G, or R) correctly correspond to the

first

letter of the color wire in which they are connected. However, it is important to

verify which equipment terminals are connected at the other ends of the wires

before connecting the wires to the thermostat.

2. Align the pins/label on the circuit board with the holes/label on the terminal blocks and gently

push

the wired terminal blocks into place on the circuit board (refer to Figure 3).

Figure 3. Attaching the wired terminal blocks to the pins on the circuit boards

3. Push the excess wire through the hole in the wall cavity or into the junction box.

Important: Do not coil excess wire between the thermostat and the backplate. Use non-

flammable insulation to prevent air movement between the wall cavity and the

thermostat.

(W1)W2

Y2

S1

S2

Hp

Hs

Dh

A

C

G

(O/B)W

Rc

R

Y

C G Y W Rc R

W2 Y2 A S1 S2 Hp Hs Dh

BAS-SVX44A-EN 13

Installation and Wiring

Terminal Identification

Table 3 identifies the programmable thermostat terminals.

Wiring Diagrams

The following diagrams show typical wiring scenarios for the touch-screen programmable

thermostat.

Use Table 4 and the corresponding figure to correctly wire the thermostat.

Table 3. Terminal identification

Connector

Type

Terminal

Label

(a)

(a) Label order above is how they appear on the thermostat terminal block.

Terminal Description

8-pin Connectors

Dh Dehumidify relay

Hs External humidity sensor input

Hp External humidity sensor power

S2 External temperature sensor

S1 External temperature sensor

A Economizer relay

Y2 Stage 2 compressor control relay

(W1)W2 (Aux or Em heat relay)

(b)

Second stage heat relay

(b) Text in parentheses applies to only heat pump systems.

6-pin connectors

R

24 Vac heating

Important: Terminal shipped with jumper connected. Remove jumper if the 24 Vac

power supplies are separate.

Rc

24 Vac cooling

Important: Terminal shipped with jumper connected. Remove jumper if the 24 Vac

power supplies are separate.

(O/B)W (Changeover valve)

(b)

Heat relay

Y Stage 1 compressor control relay

G Fan relay

C Common

Table 4. System type options for programmable thermostats

System Type Value for Option 130

See Diagram

1-heat/1-cool, conventional 1 Figure 4

1-heat/1-cool, heat pump without auxiliary heat 2 Figure 5

1-heat only, conventional without fan 3 Figure 6

1-heat only, conventional with fan 4 Figure 7

1-cool, conventional 5 Figure 8

2-heat/1-cool, heat pump with auxiliary heat 6 Figure 9

2-heat/2-cool, conventional 7 Figure 10

2-heat/1-cool, conventional 8 Figure 11

1-heat/2-cool, conventional 9 Figure 12

2-heat/2-cool, heat pump without auxiliary heat 10 Figure 13

3-heat/2-cool, heat pump with auxiliary heat 11 Figure 14

14 BAS-SVX44A-EN

Installation and Wiring

Figure 4. Programmable Thermostat, 1H/1C, Conventional (Option 1)

Figure 5. Programmable Thermostat, 1H/1C, Heat Pump Without Auxiliary Heat (Option 2)

Fan

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Heat

Economizer/TOD

Dehumidification

Remote Humidity Sensor

Remote Temperature Sensor

Compressor

L2

L1 (hot)

Single Transformer:

(jumper

installed)

Fan

L2

L1 (hot)

24 Vac

Heat

Compressor

L2

L1 (hot)

24 Vac

Cooling Transformer

Heating Transformer

Two Transformers:

(jumper

removed)

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Fan

24 Vac

Changeover Valve

Compressor

L2

L1 (hot)

(jumper

installed)

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

W1

Y2

A

S1

S2

Hp

Hs

Dh

C

G

Y

O/B

Rc

R

BAS-SVX44A-EN 15

Installation and Wiring

Figure 6. Programmable Thermostat, 1H Only, Conventional Without Fan (Option 3)

Figure 7. Programmable Thermostat, 1H, Conventional With Fan (Option 4)

Figure 8. Programmable Thermostat, 1C, Conventional (Option 5)

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Heat

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

L2

L1 (hot)

(jumper

installed)

Fan

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Heat

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

L2

L1 (hot)

(jumper

installed)

Fan

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

Compressor

L2

L1 (hot)

(jumper

installed)

16 BAS-SVX44A-EN

Installation and Wiring

Figure 9. Programmable Thermostat, 2H/1C, Heat Pump With Auxiliary Heat (Option 6)

Figure 10. Programmable Thermostat, 2H/2C, Conventional (Option 7)

Fan

24 Vac

Changeover Valve

Compressor

Auxiliary Heat

L2

L1 (hot)

(jumper

installed)

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

W1

Y2

A

S1

S2

Hp

Hs

Dh

C

G

Y

O/B

Rc

R

Fan

Heat 1

Heat 2

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

Compressor 1

Compressor 2

L2

L1 (hot)

Single Transformer:

(jumper

installed)

Fan

L2

L1 (hot)

24 Vac

Heat 1

Compressor 1

L2

L1 (hot)

24 Vac

Cooling Transformer

Heating Transformer

Two Transformers:

(jumper

removed)

Compressor 2

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

Heat 2

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

BAS-SVX44A-EN 17

Installation and Wiring

Figure 11. Programmable Thermostat, 2H/1C, Conventional (Option 8)

Figure 12. Programmable Thermostat, 1H/2C, Conventional (Option 9)

Fan

Heat 1

Heat 2

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

Compressor

L2

L1 (hot)

Single Transformer:

(jumper

installed)

Fan

L2

L1 (hot)

24 Vac

Heat 1

Compressor

L2

L1 (hot)

24 Vac

Cooling Transformer

Heating Transformer

Two Transformers:

(jumper

removed)

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

Heat 2

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Fan

Heat 1

24 Vac

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

Compressor 1

Compressor 2

L2

L1 (hot)

Single Transformer:

(jumper

installed)

Fan

L2

L1 (hot)

24 Vac

Heat

Compressor 1

L2

L1 (hot)

24 Vac

Cooling Transformer

Heating Transformer

Two Transformers:

(jumper

removed)

Compressor 2

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

C

G

Y

W

Rc

R

W2

Y2

A

S1

S2

Hp

Hs

Dh

18 BAS-SVX44A-EN

Installation and Wiring

Figure 13. Programmable Thermostat, 2H/2C, Heat Pump Without Auxiliary Heat (Option 10)

Figure 14. Programmable Thermostat, 3H/2C, Heat Pump With Auxiliary Heat (Option 11)

Thermostat Cover Replacement

After completing all wiring, replace the thermostat cover. To replace the cover:

1. Hook the cover over the top of the backplate. Apply light pressure to the bottom of the cover

until

it snaps into place.

2. To help deter tampering, install the security screw into the bottom of the cover as shown below.

Figure 15. Close cover and replace security screw

Fan

24 Vac

Changeover Valve

Compressor 1

Compressor 2

L2

L1 (hot)

(jumper

installed)

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

W1

Y2

A

S1

S2

Hp

Hs

Dh

C

G

Y

O/B

Rc

R

Fan

24 Vac

Changeover Valve

Compressor 1

Auxiliary Heat

Compressor 2

L2

L1 (hot)

(jumper

installed)

Economizer/TOD

Dehumidification

Remote Temperature Sensor

Remote Humidity Sensor

W1

Y2

A

S1

S2

Hp

Hs

Dh

C

G

Y

O/B

Rc

R

Install security screw

to deter tampering.

BAS-SVX44A-EN 19

Power, System Tests, and Software Reset

This section provides information about:

• Applying power

• Power-up test

• System tests

Applying Power

Restore power to the HVAC equipment. The thermostat initiates a power-up test and will display

an error, if one is detected (refer to the sections, “Power-up Test,” p. 19 and “Error Codes,” p. 48).

If no errors are detected, the home screen appears as shown in Figure 16.

Figure 16. Home screens

Power-up Test

The power-up test is performed any time power is applied to the thermostat. At the start of the

power-up test, the thermostat screen will display the following sequence of events, in order:

• All icons for approximately 1.5 seconds and then;

• The firmware version for 1.5 seconds (in

the clock digit location), and finally;

• Self-testing.

If an error is detected, the error code will display whereby, the user can bypass the error by pressing

the Cancel icon

( ). Once the self-testing has completed checking for any errors, the thermostat

will display the Home screen.

During the test, the configuration/test icon ( ) blinks on the LCD screen indicating a test is in

progress. Table 5 lists the sequence of tests that occurs:

Note: For a detailed list and descriptions of error codes, refer to the section, “Error Codes,” p. 48.

Example of Home Screen: Heat OnlyExample of Home Screen: Auto Heat/Cool

20 BAS-SVX44A-EN

Power, System Tests, and Software Reset

System Tests

The system test mode is used to run diagnostics on the thermostat to verify that the unit is

functioning properly.

Referring to Table 6, p. 22, to run a system test:

1. Remove the thermostat cover as shown in the section,“Mounting the Backplate,” p. 10.

2. Press and hold the Configuration button

(refer to Figure 17, p. 21) for 3 seconds. The

configuration/test icon ( ) displays and the thermostat is now in Configuration

Setup

Mode.

3. Press and hold the Configuration button

for 3 seconds again to activate System Test Mode

indicated by the blinking parameter/test icon. When activating system test mode, the first

system test number displayed is always 01.

The test number is changed with the Up ( ) or Down ( ) arrows in the center of the display

screen.

Note: The OK button ( ) functions the same as the Up arrow and steps to the next

higher test number.

The test value is changed with the Up ( ) or Down ( ) arrows on the right-hand side of

the display screen.

Note: Changing

a test value will start/stop the test as described in Table 6. Refer to

Figure 17 for arrow locations and Table 6, p. 22 for a list of test values and test

value descriptions.

4. Exit the System

Test Mode and return to the Home screen by:

a. Pressing the Configuration button

momentarily (less than 3 seconds).

b. Touching and holding for 2 seconds.

c. Powering down the thermostat and then powering it up again.

d. Waiting for a 10-minute time out after the last touch.

Table 5. Error code test sequence

Test

Sequence

Error Code and Description

1 E4;

• Operating range is 18 to 32 Vrms.

• Low error detection is less than 16.6, ±8.5%.

• High error detection is greater than 34, ±8.5%

2 E7;

• Memory error (write and read 0x55 and 0xAA failed).

3 E3;

• Permanent data error. Access error or checksum error is detected.

4 E0;

• Temperature sensor error. Checks internal and/or external temperature sensor depending on

setting of configuration option 0210.

5

E1;

• Humidity sensor error. Checks internal or external humidity sensor depending on setting of

configuration option 0200.

6 E5;

• Real Time Clock (RTC) Error.

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Trane Touch-Screen Programmable Thermostat Owner's manual

Trane Touch-Screen Programmable Thermostat Owner's manual

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