Output Values-Failure And Default Modes Of Operation; Measuring Output Resistance - Trane WDS Installation, Operation And Maintenance Manual

Maintenance and Troubleshooting
Output Values—Failure and Default Modes of Operation
The following table provides output values for failure and default modes of operation,
which can be used for troubleshooting.
Situation
Receiver address = 000
Receiver address = 001 to 999 and:
• Receiver is powered up, but not is associated, or
• Receiver has received a disassociation request
from the associated sensor.
Receiver address = 001 to 999 and receiver has
not received a communication within 35 minutes
from the associated sensor.
Receiver has no power.
Thermistor in sensor has failed to either open or
close.
Setpoint potentiometer has failed to either open or
close.

Measuring Output Resistance

To measure the resistance of receiver outputs for zone temperature and setpoints for all
models, and heating setpoint and fan/system for the WDS:
1.
2. Disconnect the ZONE (white) and SETPOINT (RED) wires from the controller.
3. Measure resistance as follows:
44
Ensure that the GND-SIGNAL (black) wire and the GND-POWER (yellow) wire are
grounded to the transformer (see
diagrams).
Disconnect the HEAT SETPOINT (brown) and FAN/SYSTEM (green) wires from the
controller, if applicable.
a. All models: Measure between the grounded GND-SIGNAL (black) wire and either
the SETPOINT (red) or ZONE (white) wire. Compare resistance measurements to
those in Table 8.
b. WDS only: Measure between the grounded GND-SIGNAL (black) wire and the
FAN/SYSTEM (green) wire. Compare resistance measurements to those given in
Table 9.
Zone
temperature Zone setpoint
output output
11.17 kΩ, 451 Ω, 72.5°F
72.5°F (22.5°C), (22.5°C),
indefinitely indefinitely
11.17 kΩ, 451 Ω, 72.5°F
72.5°F (22.5°C) (22.5°C),
Hold for 15 Hold for 15
minutes, then minutes, then
open open
Open Open
Open Open
Open Normal value
Normal value Open
Figure 4, p. 16
Heating
setpoint Fan/System
output output
501 Ω, 70.5°F 2320 Ω
(21.4°C),
Fan = Auto
indefinitely
System = Off
501 Ω, 70.5°F 2320 Ω
(21.4°C),
Fan = Auto
indefinitely
System = Off
Open Open
Open Open
Normal value N/A
Open N/A
or Figure 3, p. 16 for wiring
Wireless Sensors • BAS-SVX04C-EN