c. Set the SENSOR# to 199 for applications with only one sensor for each controller. Use the
other settings for additional sensors in applications with a single controller performing
temperature averaging or high/low selection within a zone. Refer to the
FX-WRZ7860
One-to-One Wireless Sensing System Technical Bulletin (LIT-12011663)
for information on
commissioning multiple FX-WRZ Series Sensors in an FX-WRZ Series One-to-One Wireless
Room Sensing System.
d. Set the AREA switches to match the AREA switch on the FX-WRZ7860 Receiver.
e. Set the Transmitter ID switches to match the Transmitter ID on the FX-WRZ7860
Receiver.
3. Install two AA alkaline batteries (supplied) into the battery compartment on the back of the
sensor. Ensure that the batteries are installed in the proper polarity (Figure 5).
4. If the address DIP switches are set to the correct positions and the temperature sensing
system is ready for operation or testing, set the POWER DIP switch to the ON position (Figure 3
Five seconds after the power is applied, the red LED flashes to indicate the firmware revision.
For example, the red LED flashes three times to indicate firmware revision 3.
5. Align the tabs on the bottom edge of the mounting base with the slots on the bottom edge
of the sensor housing, and rotate the sensor assembly onto its mounting base. (Reverse the
procedure shown in Figure 2.)
6. Use a 1.6 mm (1/16 in.) Allen wrench or Johnson Controls T-4000-119 Allen-Head Adjustment
Tool to tighten the tamper-resistant set screw and secure the sensor assembly onto its
mounting base (Figure 2).
Testing signal strength
Once the FX-WRZ sensor is communicating with the FX-ZFR18xx Series Router of FX-WRZ7860
Receiver, press and release the manual occupancy override button to display signal strength.
Press and hold the manual occupancy override button on the FX-WRZ Series Sensor (Figure 1) for
5 seconds or more to place the sensor into Rapid Transmit Mode and initiate a signal strength test
with the associated FX-ZFR18xx Series Router or FX-WRZ7860 Receiver. See
.
Table 1: FX-WRZ Sensor to FX-ZFR18xx Series Router or FX-WRZ7860 Receiver Wireless Signal
Strength
Flashes
Signal strength
3
Excellent/Sensor has joined network
2
Good/Sensor has joined network
1
Weak/Sensor has joined network
0
None/Sensor has not joined network
Fast Flash Rate
(8)
Unable to locate associated wireless enabled controller
On LCD models, the signal strength is shown on the display on the face of the sensor (callout in
Figure 7).
Temperature and Relative Humidity FX-WRZ Series Wireless Room Sensors Installation Instructions
8
