Trane HUV Installation, Operation And Maintenance Manual page 98

Diagnostics
• The receiver receives a disassociation notification
from its associated sensor
• The receiver does not receive a communication from
its associated sensor within 50 minutes.
• The sensor and receiver are associated and
communicating at the time the sensor is set to 000 and
the Test button is pressed.
Note: A disassociated sensor will transit an association
request every 10 minutes.
Sensor/Receiver Compatibility (Wireless
Controls)
Version 1.5 (p/n X13790854 and X13790855) and higher
receivers are compatible with all sensors models and
support all functions. Receivers released prior to version
1.5 are compatible with only model WZS.
Replacing a Failed Sensor or Receiver
(Wireless Controls)
Note: Receivers ship installed on the unit. To remove the
receiver, press in the retention tabs on the
underside of the receiver enclosure and push
upward.
To replace a failed sensor or receiver:
11. Confirm that the device is disassociated (see
and Table 39, p. 95).
12. Set the rotary address switch of the new device to
match the address of the remaining sensor or receiver.
Note: There is no need to remove power from the
remaining device.
13. Apply power to the new device. Association between
the new and the remaining devices will automatically
occur.
Note: When replacing a WDS sensor, the receiver
(version 1.5 or higher) will automatically configure
the sensor to match the last stored configuration, if
the sensor has not been placed into configuration
mode and the factory default configuration is still
valid. If the sensor configuration does not match
the desired system features, it can be manually
configured (see "Manual Association (Wireless
Controls), " p. 97).
Servicing and Testing (Wireless Controls)
If the wireless sensor system is not working as expected,
use the tools and procedure described in this section.
Servicing and Testing Tools (Wireless Controls)
No special tools or software are necessary to service and
test the wireless sensor system. Test the system by using:
• The LEDs on the receiver, LEDs on the model WZS
sensor, and the display on the model WDS sensor
• The Test button on the sensor
• The address test mode on the receiver
98
• A common volt-ohm meter
Procedure for Testing the Wireless Sensor System
(Wireless Controls)
If the wireless sensor system is not working as expected:
1. Observe LED5 on the receiver. LED5 is On solid green
whenever the receiver is powered.
2. Verify that the receiver is properly grounded. Both the
GND-SIGNAL (black) wire and the GND-POWER
(yellow) wire must be grounded.
3. Press the Test button on the sensor.
• Model WZS: LED5 should turn On solid green,
indicating proper battery strength. LED1, LED2, and
LED3 will indicate signal strength.
Note: When checking signal strength, both LED1
• Model WDS: Battery life
(Wireless Controls), " p.
("Testing Signal Strength (Wireless Controls), "
p. 95) are indicated on the display.
Procedure for Testing the Receiver (Wireless
Table 38
Controls)
If the receiver is not working as expected:
1. Verify that the receiver is powered.
2. Set the receiver address to 000 to force the zone
temperature output and zone temperature setpoint
output to their default mode values (see
Values—Failure and Default Modes of Operation
(Wireless Controls), " p.
3. Measure the receiver output resistance (see
"Measuring Output Resistance (Wireless Controls), "
p. 99).
4. When the test is complete, reset the receiver address to
its previous setting.
5. Press the Test button on the sensor to force re-
association.
6. Confirm association and communication by noting
LED1, LED2, and LED3 as described in
Strength (Wireless Controls), " p.
Forcing a Sensor to Transmit (Wireless Controls)
To force a wireless sensor to transmit during servicing,
press the Test button on the sensor.
Output Power Level (Wireless Controls)
The maximum output power level of a wireless sensor set
is controlled by software and restricted by channel of
operation and agency requirements per country or region.
The sensor has a default maximum power level of 10 mW,
and LED3 on the receiver and sensor
illuminate in unison if the sensor and
receiver are associated. Use this feature to
confirm association.
("Testing Battery Status
96) and signal strength
99).
95.
"Output
"Testing Signal
UV-SVN02C-EN