Trane WDS, WZS, WTS Installation, Operation And Maintenance Manual
Installation, Operation, and
Maintenance
Wireless Sensors
Models WTS, WZS, and WDS
April 2008
BAS-SVX04C-EN
Copyright
© 2008 Trane All rights reserved
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,
may result in minor or moderate injury. It may also be used to alert against
unsafe practices.
NOTICE: Indicates a situation that may result in equipment or property-damage-
only accidents.
Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Height Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Address Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mounting the Receiver Back Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Wiring the Receiver to the Unit Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacing the Receiver Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Applying Power to the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Observing the Receiver for Readiness to Associate . . . . . . . . . . . . . . . . . . . 18
Associating the Sensor to the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Testing Signal Strength and Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . 20
Mounting the Sensor Back Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Configuring the Wireless Sensor (Model WDS only) . . . . . . . . . . . . . . . . . . 22
Configuration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Replacing the Sensor Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Temporary Occupancy (Timed Override) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Model WZS Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Model WDS Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Service Pin Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Model WZS Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Model WDS Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Star(*)/Double Star(**) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
End-of-Range Temperature Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Receiver Power-up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sensor Transmission Time and Temperature Variables . . . . . . . . . . . . . . . 32
BAS-SVX04C-EN • Wireless Sensors 3
Contents
Operating Mode (Model WDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Changing Room Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Changing Heating and Cooling Room Temperature Settings (applies to
some systems) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Changing the System Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Changing the Fan Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Requesting Temporary Occupancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Lock Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Testing Signal Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Testing Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Locations of LEDs, Test button, Test Symbols, and Error Codes . . . . . . . . 35
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Testing Signal Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Testing Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
24 V Power Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Using the Wireless Sensor System to Check Signal Strength on a Site . . 39
Replacing Sensor Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Battery Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Manual Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Disassociation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Sensor/Receiver Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Replacing a Failed Sensor or Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Servicing and Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Servicing and Testing Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Procedure for Testing the Wireless Sensor System . . . . . . . . . . . . . . . . . 43
Procedure for Testing the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Forcing a Sensor to Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Output Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Output Values—Failure and Default Modes of Operation . . . . . . . . . . . . . . 44
Measuring Output Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cleaning the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Appendix A: Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Single Transformer Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Multiple Transformer Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4 BAS-SVX04C-EN • Wireless Sensors
Contents
Appendix B: Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
BAS-SVX04C-EN • Wireless Sensors 5
General Information
This section provides a description of the sensors, as well as part numbers and
dimensions.
Product Description
Tra ne® wireless sensor sets are compatible with any Trane unit controller that uses a
standard 10 kΩ temperature input. The sets include sensor, receiver, wiring harness, and
two AA lithium batteries. No further software or hardware is necessary for site
evaluation, installation, or maintenance. Zone temperature is standard on all models.
Notes:
• The information in this manual applies to both factory and field installed versions of
the Trane wireless sensor sets.
• A service tool cannot be connected to a Trane wireless sensor.
Trane wireless sensors include the following models:
Model WDS
This configurable sensor has an LCD display. It provides the same functions as many
currently available Trane wired sensors. Configurable features include:
– Temperature units: Fahrenheit (ºF) or Celsius (ºC)
– Temperature resolution: 1.0, 0.5, or 0.1 degrees
– Ability to display setpoint only (zone temperature does not display)
– Single, dual, or no setpoint
– System settings: auto, off, cool, heat, emergency heat
– Dead band (heat/cool setpoint offset for dual setpoint systems)
– Fan settings: high, medium, low, auto, off
– Timed override request function
– Lockable settings to protect agains unauthorized use
– Service pin request
Model WTS
This sensor measures and transmits the zone temperature only.
Model WZS
This sensor set transmits the zone temperature, all zone temperature setpoint functions,
temporary occupancy (timed override), and unoccupied (cancel) information to the
receiver. The receiver electrically reproduces the zone temperature resistance, all zone
temperature setpoint function resistances, and temporary occupancy/unoccupied
information as sent by the sensor.
BAS-SVX04C-EN • Wireless Sensors 7
General Information
Part Numbers
The following table lists available models by part number:
Part number Description
X1379082101 Model WTS sensor only
X1379082201 Model WDS sensor only
X1379082301 Model WTS sensor set
X1379082401 Model WDS sensor set
X13790492 Model WZS, sensor only, Fahrenheit
X13790494 Model WZS, sensor only, Celsius
X13790496 Model WZS sensor set, Fahrenheit
X13790498 Model WZS sensor set, Celsius
X13790854 Receiver only, all models
X1905211201 Wire harness, seven conductor, for wireless receiver
8 Wireless Sensors • BAS-SVX04C-EN
Dimensions
2.9 in (73.5 cm)
1.08 in (27.5 mm)
4.68 in (118.9 mm)
1.45 in (36.8 mm)
0.63 in (15.9 mm)
0.31 in (8 mm)
0.12 in (3 mm)
TYP R.07 in
(R1.9) mm)
3.39 in (86 mm)
2.48 in (63 mm)
2.62 in (66.5 mm)
TYP 0.24 in (6 mm)
General Information
The following illustration provides specific dimension details. The dimensions are the
same for all models.
BAS-SVX04C-EN • Wireless Sensors 9
Pre-Installation
This section provides the following pre-installation information:
• Location considerations
• Height requirements
• Mounting surfaces
• Address settings
Location Considerations
Placement of the sensor and the receiver is critical to proper operation. 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 of the radio signal throughout the building.
Receiver
Sensor
The transmission range for the sensor is as follows:
• Open range: 2,500 ft (762 m) (packet error rate = 2%)
• Usable range: 200 ft (61 m)
• Typical range: 75 ft (23 m)
When selecting a receiver location, avoid the following:
• Locations that are outside the operating temperature and humidity range (refer to
“Specifications,” p. 47)
• 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
• Placing the receiver inside metal enclosures
• Mounting on rooftop without a careful site evaluation and confirmation
When selecting a sensor location, avoid the following:
• Areas of direct sunlight
• Areas in the direct airstream of air diffusers
• Exterior walls and other walls that have a temperature differential between the two
sides
• Areas that are close to heat sources such as sunlight, appliances, concealed pipes,
chimneys, or other heat-generating equipment
• Drafty areas
• Dead spots behind doors, projection screens, or corners
• Walls that are subject to high vibration
• Areas with high humidity
10 Wireless Sensors • BAS-SVX04C-EN
• 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
• Placing the sensor inside metal enclosures
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
Pre-Installation
Using the hardware provided, mount the back plate of the receiver and the sensor to a
flat surface such as sheetrock 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.
• Receivers: Use the included hardware.
•Sensors:
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
• It is not possible to associate more than one sensor to a receiver, nor is it possible to
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
– 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.
the wireless system must have a unique address.
associate more than one receiver to a sensor.
removing the insulation strip (Figure 1, p. 12) from the sensor.
BAS-SVX04C-EN • Wireless Sensors 11
S
5
GND
R77
C35
S1
S2
C33
LED4
S4
S5
S3
LED1
LED2
LED3
LED5
C34
J1
COMM -
24VAC/DC
SETPOINT
HEATING SET
SIGNAL
POWER
ADDDRESS
FAN/SYSTEM
ZONE
COMM +
IN
S
TAL
L
WIRELESS
GND
!
B1 +
INSTALL
WIRELESS
S4
S3
S2
S1
ADDRESS
STATUS
BATTERY
LED5
SIGNAL
LED3
L
ED2
LED1
Pb
Pb-FREE
STATUS
LED4
T
A
S
S
Do not remove the
insulation strip yet.
Pre-Installation
To set the receiver and sensor addresses:
1. Using a small screwdriver, set the three rotary address switches (locations S1, S2, S3)
on the receiver to an address between 001 and 999 (see Figure 1). (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
[22.5°C]), removes all association knowledge, and prevents association with a
sensor.
Figure 1. Setting the rotary address switches on the receiver and the sensor
2. Set the three rotary address switches (locations S1, S2, S3) on the sensor to the same
address as the receiver (see Figure 1).
Note: Do not use 000 as an address. Add 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.
12 Wireless Sensors • BAS-SVX04C-EN
Installation
LEDs
Security screw
This section provides step-by-step installation instructions. Read through the preinstallation information before proceeding with installation.
Important: It is recommended that you install the sensor set in the order presented in
this section.
Mounting the Receiver Back Plate
To mount the receiver back plate:
1. Remove the cover by firmly pressing the thumb tab at the bottom of the cover and
pulling the cover away from the back plate.
Note: If present, remove the security screw before removing the cover.
2. Hold the back plate against the mounting surface and mark the screw locations.
Note: Locate the receiver to ensure that the LEDs are easy to view.
3. Secure the back plate of the mounting surface using the included hardware.
BAS-SVX04C-EN • Wireless Sensors 13
Installation
Wiring the Receiver to the Unit Controller
Power requirements and wiring instructions for the receiver are described in this section.
Power Requirements
The required power for the receiver is 24 Vac or 24 Vdc and less than 1 VA. The receiver
is designed to be powered by the host unit controller. A dedicated transformer to power
the receiver is seldom necessary and is not recommended. It should be used only when
the host transformer does not have enough volt-ampere (VA) capacity to power the
receiver (see “Specifications,” p. 47 for receiver power consumption).
Wiring diagrams for single transformer wiring and multiple transformer wiring are
located in “Appendix A: Wiring Diagrams,” p. 48.
Wiring Procedure
WARNI NG
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 receiver module will permanently damage it.
To wire the receiver to the unit controller:
1. Shut off power to the unit controller to which you are wiring the receiver.
2. Connect the wiring harness (provided) to the receiver (Figure 2, p. 15).
3. Route the wires from the receiver to the unit controller through either:
a. The opening at the back of the back plate (see Figure 3, p. 16 for an example).
b. The hole in the bottom of the cover (see Figure 4, p. 16 for an example).
4. Terminate wires at the unit controller. Refer to Table 1, p. 15 and Figure 2, p. 15 to
determine which wires to use and where to terminate them on the controller.
Notes:
• To maintain agency compliance, ensure that length of the wiring harness is no more
than 3 m.
• Adaptors are provided, which allow connecting multiple wires to the power
terminals of the host unit controller (see Figure 3 and Figure 4, p. 16.
• An anti-short bushing is provided; use it to prevent the wire from shorting out if the
steel penetrates the wiring harness (see Figure 4, p. 16).
5. Trim off any unused terminals. Insulate exposed wire with tape or a wire nut.
14 Wireless Sensors • BAS-SVX04C-EN
Connect wiring
harness to
receiver
Table 1. Wiring harness: Wire identification
Wire label Color Function
HEATING SET Brown Space temperature heating setpoint
(WDS only)
FAN SYSTEM Green Fan and system control (WDS only)
SETPOINT Red Space temperature setpoint
(WDS and WZS only)
ZONE White Zone temperature
GND-SIGNAL Black Ground for setpoint and zone signal
24VAC/DC Blue 24 Vac/Vdc power
GND-POWER Yellow Ground for 24 Vac/dc
Figure 2. Wiring harness
Installation
BAS-SVX04C-EN • Wireless Sensors 15
Installation
Figure 3. Wiring a receiver to a unit controller through the opening in the back of the receiver back plate
Figure 4. Wiring a receiver to a unit controller through the bottom slot in receiver cover
16 Wireless Sensors • BAS-SVX04C-EN
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