Application - 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

Johnson Controls
Product name
WRZ one-to-one Wireless Room Sensing System
Document type
Installation Guide
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Use the WRZ Series Wireless Room Sensors to sense room and zone temperature and transmit wireless temperature control data. Some models also sense and transmit relative humidity (RH).

In a mesh application, the WRZ sensor is compatible with the ZFR18xx Wireless Field Bus Systems (ZFR181x, ZFR182x, ZFR183x). See Table 1. Depending on the system controller, the transmitter communicates through the ZFR18xx Router (ZFR or ZFR Pro Series Router). Up to nine WRZ Series Sensors can associate with a single Controller.

In wired Field Bus applications, the sensors communicate with a WRZ-7860 Wireless Receiver. The WRZ-7860 Receiver transfers data to the controller through the Sensor Actuator (SA) communication bus. In a typical application, one WRZ Series Sensor reports to one WRZ-7860 Receiver, but up to five WRZ Series Sensors can associate with a single WRZ-7860 Receiver for multi-sensor averaging or high and low temperature selection.

WRZ Series sensor models are available with or without an LCD. Depending on the sensor model, the WRZ Series Sensor can transmit sensed temperature, setpoint temperature, sensed humidity, occupancy status, and low battery conditions to an associated router or receiver. The WRZ Series Sensors are for indoor,intra-building applications only.

The WRZ Sensors use direct-sequence, spread-spectrum radio frequency (RF) technology, and operate on the 2.4 GHz Industrial, Scientific, and Medical (ISM) band. The receiver meets the IEEE 802.15.4 standard for low power, low duty cycle RF transmitting systems.

Important: The WRZ Series Sensors are intended to provide an input to equipment under normal operating conditions. Where failure or malfunction of the sensor could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the sensor.
Important : Le WRZ Series Sensors est destiné à transmettre des données entrantes à un équipement dans des conditions normales de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du sensor risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du sensor.