3. Connect the SA bus cable.
Five seconds after you applied power, the red
LED flashes to indicate the firmware revision.
For example, the LED flashing three times
during the startup process indicates firmware
revision 3.
Result
For each WRZ-7860-0 Receiver, record the following:
• the
AREA
and
TRANSMITTER I.D
. DIP switch settings
• the location or identification of the controller that the
WRZ-7860-0 Receiver connects to with the SA bus cable
Use this information to adjust the DIP switch settings of
the WRZ Series Wireless Room Sensor assigned to the
WRZ-7860-0 Receiver, and to associate the room sensor
and receiver with the correct controller.
Figure 5: WRZ-7860-0 Receiver, back view
Refer to the
WRZ-7860-0 Receiver for One-to-One Wireless
Room Sensing Systems Technical Bulletin (LIT-12011641)
for
more information about how to determine the settings for
the
AREA
and
TRANSMITTER I.D.
DIP switches for a WRZ
Series Wireless Room Sensor and a WRZ-7860 Receiver.
Troubleshooting
Use the status LEDs illustrated in Figure 1 with the
information in the following table to troubleshoot the
WRZ-7860-0 Receiver.
Table 2: Status LEDs
Name
Color
Normal
Description
Flickering = SA bus
activity
SA bus
Green Flickering
Off steady = no SA
bus activity
Green = good
room sensor
battery
1 blink = marginal
RF signal strength
2 blinks = good RF
signal strength
3 blinks = excellent
RF signal strength
RF
wireless
signal
strength
and
power
status
Green
or red
bi-color
1
Green – On,
blinks signal
strength every
60 seconds
1
Red = weak room
sensor battery
1
Pressing the occupancy override button on the associated
WRZ Series Wireless Room Sensor causes the RF LED on the
WRZ-7860-0 Receiver to blink.
Repair information
If The WRZ-7860-0 Receiver fails to operate in its
specifications, replace the unit. For a replacement
receiver, contact the nearest Johnson Controls
representative.
Ordering information
To order a WRZ Receiver, contact the nearest Johnson
Controls representative. Specify the required product
code number from Table 3 and accessories from Table 4.
WRZ-7860-0 Receiver for One-to-One Wireless Room Sensing Systems Installation Guide
4