Trane FCV, Installation, Operation And Maintenance Manual

Page: 55 / 96

Installation - Controls
UNT-SVX041D-EN 55
3. For model WDS, determine the signal strength and
battery status by viewing the symbols on the sensor
display. Record the results in your commissioning
statement.
Sensor Operations
Temporary Occupancy (Timed Override)
Temporary occupancy (timed override) is available on
model
WDS . Temporary occupancy is selected for after-
business-hours adjustment of temperature setting, fan
settings, or heat/cool settings, when the system has
changed to unoccupied mode. System control will revert
to unoccupied after a pre-determined time period.
Note: Not all systems support the occupancy function.
To request and cancel temporary occupancy on a model
WDS sensor, see “Requesting Temporary Occupancy,”
p. 62 .
End-of-Range Temperature Values
Receiver: The end-of-range temperature limits of the
receiver for all models are 32°F to 122°F. The receiver
cannot replicate temperature values outside this range. If
the sensor transmits a temperature value to the receiver
that is out of the receiver replication range, the receiver
will “freeze” the output at the end-of-range values. This
value will remain frozen until the transmitted temperature
moves to between the end-of-range temperature limits.
Sensor: The end-of-range temperature setpoint limits for
the WDS is 50°Fto 89.6°F.
Receiver Power-up Sequence
When power is applied to the receiver, one of the following
sequences occurs. The sequence is dependent on the
address setting and the association status of the receiver.
Address set to 000 and receiver is not
associated with a sensor
• LED5 is constantly On, indicating power is applied and
the receiver is functional.
• All models : Zone temperature and cooling setpoint
default to 72.5°F.
WDS only : The heating setpoint defaults to 70.5°F and
the fan/system output will be 2230

(see “Failure and
Default Modes,” p. 77 ).
• Status LED3 will display a 2-blink pattern diagnostic.
Address set from 001 to 999 and receiver is not
associated with a sensor
• LED5 is constantly On, indicating power is applied and
the receiver is functional.
• All models : Zone temperature and cooling setpoint
default to 72.5°F.
WDS only : The heating setpoint defaults to 70.5°F and
the fan/system output will be 2230

(see “Failure and
Default Modes,” p. 77 ).
• The receiver conducts an energy scan for 20 seconds to
determine the clearest channel on which to operate.
Figure 50. Wireless Zone Sensor (WZS) with LED lights
to test for battery strength
Figure 51. Wireless Display Sensor (WDS) showing
battery strength
LED1
LED2
LED3
LED5
Test button
Push firmly, then release
Test button
Push firmly, then release