Preparing the WRZ Series Sensor for operation - 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

About this task

To prepare the WRZ Series Sensor for operation, and to reinstall the sensor housing on its mounting base, complete the following steps:

Procedure

  1. Place the appropriate DIP switch overlay, based on the application, over the DIP switches. See the following figures.
    Figure 1. Mesh network application DIP switch overlay

    Figure 2. One-to-one network application DIP switch overlay

    Figure 3. Back of WRZ Series Sensor showing DIP switches and batteries

  2. Set the DIP switches located on the back of the sensor.
    For a mesh network application that uses a ZFR and ZFR Pro Series Router , see Preparing the WRZ Series Sensor for operation and Figure 4, and set the DIP switches as indicated in Figure 7. See Commissioning Multiple WRZ Sensors for information on commissioning multiple WRZ Series Sensors in a ZFR18xx Series Wireless Field Bus System.
    1. Set the POWER switch to OFF.
    2. Set the MODE switch to MESH.
    3. Set the PAN OFFSET switches according to the job or system plans.
      Important: Ensure that the PAN OFFSET is the same for each ZFR or ZFR Pro Series Coordinator, ZFR and ZFR Pro Series Router, and WRZ Series Sensor in a mesh network. See Figure 4.
    4. Set the ZONE DIP switches according to the job or system plans.
    5. Set the MS/TP address DIP switches to match the MS/TP address of the controller that the sensor communicates with.
    6. Set the TRANSMIT LEVEL switch to 10 mW.
    Figure 4. Sample DIP switch settings

    For a one-to-one network application with a WRZ-7860 receiver, set the DIP switches as indicated in Figure 4, and ensure that the AREA and TRANSMITTER ID switches on the WRZ-7860 Receiver and the WRZ Series Sensors are set to the same value. See Figure 2.

    1. Set the POWER switch to OFF.
    2. Set the MODE switch to 1-to-1.
    3. Set the SENSOR # to 199 for applications with only one sensor per controller. Use the other settings for additional sensors in applications with a single controller performing temperature averaging or high/low selection in a zone. Refer to the WRZ Series one-to-one Wireless Room Sensing System Technical Bulletin (LIT-12011641) for information on commissioning multiple WRZ Series Sensors in a WRZ Series one-to-one Wireless Room Sensing System.
    4. Set the AREA switches to match the AREA switch on the WRZ-7860 Receiver.
    5. Set the Transmitter ID switches to match the Transmitter ID on the WRZ-7860 Receiver.
  3. Install the two supplied AA alkaline batteries into the battery compartment on the back of the sensor. Ensure to install the batteries in the correct polarity. See Figure 3.
  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. See Figure 1 or Figure 2. Five seconds after the application of power, the red LED flashes to indicate the firmware revision. For example, three flashes of the red LED during the startup process indicates 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 1.
  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. See Figure 1.