Testing signal strength - Johnson Controls - WRZ-THJ - WRZ-THN - WRZ-TTJ - WRZ-TTK - WRZ-TTP - WRZ-TTR - WRZ-TTS - Wireless Device - WRZ one-to-one Wireless Room Sensing System

WRZ Series Wireless Room Sensors Installation Guide

Brand
Johnson Controls
Product name
WRZ one-to-one Wireless Room Sensing System
Document type
Installation Guide
Part number
24-10332-2
Document revision
V
Revision date
2020-07-09
Language
English

When the WRZ sensor communicates with the ZFR or ZFR Pro Series Router, or WRZ-7860 Receiver, press and release the manual occupancy override button to display signal strength.

Press and hold the manual occupancy override button on the WRZ Series Sensor for 5 seconds or more to place the sensor into Rapid Transmit Mode and initiate a signal strength test with the associated ZFR or ZFR Pro Series Router, or WRZ-7860 Receiver. See Figure 1 and Rapid Transmit Mode for additional information.

Table 1. WRZ Sensor to ZFR or ZFR Pro Series router, or WRZ-7860 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 field controller

On LCD models, the signal strength shows on the display on the face of the sensor as shown in Figure 1.

Figure 1. Sensor LCD

Note: For WRZ Series Sensors with an LCD display, the humidity value may appear as 0.0% when the sensor is joining a network. This condition is transitory and does not transfer to the Building Automation System (BAS).

Before installation, use an optional Wireless Sensing System Tool with any WRZ Series Sensor as a site survey tool, to determine potential locations for system devices and to determine the wireless signal strength between the system devices in the application.

Refer to the WRZ-SST-120 Wireless Sensing System Tool Installation Instructions (Part No. 24-10563-71) for more information about testing signal strength. Use the Wireless Sensing System Tool to determine signal strength between the sensor and the wireless controller. For additional location consideration details, also refer to the following documents:

  • ZFR18xx Series Wireless Field Bus System Technical Bulletin (LIT-12011295)
  • WNC1800/ZFR182x Pro Series Wireless Field Bus System Technical Bulletin (LIT-12012356)
  • WRZ Series one-to-one Wireless Room Sensing System Technical Bulletin (LIT-12011641)

Refer to the ZFR-HPSST-0 High Power Wireless Survey Tool Document for use with the WRG1830/ZFR183x Pro Series Wireless Field Bus System. Use the Wireless Survey Tool to determine signal strength between the wireless controllers.