Use the WRZ-7860-0 Receiver for One-to-One Wireless Room Sensing Systems to receive wireless Radio Frequency (RF) temperature and humidity data from WRZ Series Wireless Room Sensors, and provide single zone temperature and humidity control data to specified system digital controllers in building HVAC systems. The WRZ Series Wireless Room Sensor and WRZ-7860-0 Receiver combination is a functional equivalent to a wired network sensor, such as an NS8000 Network Sensor, but eliminates the need for communications wiring, usually placed inside the wall, between the room sensor and receiver.
Like a network sensor, the WRZ-7860-0 Receiver communicates over a Sensor Actuator (SA) bus interface through the MS/TP BACnet® protocol with Johnson Controls® field controllers. The receiver supplies the sensed zone temperature and humidity, temperature setpoint, and occupancy override data.
In an application, one WRZ Series Wireless Room Sensor reports to one WRZ-7860-0 Receiver. However, up to five WRZ Series Wireless Room Sensors can associate with a single WRZ-7860-0 Receiver. In multi-sensor applications, the receiver passes all the room sensors data to the controller. Configure the controller to either average the room sensors temperature and humidity input, or select the highest or lowest sensed temperature and humidity for control of the target zone.
The WRZ-7860-0 Receiver uses direct-sequence, spread-spectrum RF technology, and operates 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. A WRZ-7860-0 Receiver operates as a transceiver, to create a bidirectional association with a WRZ Series Wireless Room Sensor.
Refer to the WRZ-7860-0 Receiver for One-to-One Wireless Room Sensing Systems Product Bulletin (LIT-12011640) for important product application information.