Description

The WRZ Series Wireless Room Sensors are designed to sense room or zone temperature

and transmit wireless temperature control data. Some models also sense and transmit

relative humidity (RH).

Several models include an onboard passive infrared (PIR) occupancy sensor that detects

motion to determine if a space is occupied.

This feature maximizes up to 30% energy savings in high-energy usage environments

such as schools, dormitories, offices, and hospitals by adjusting the temperature of the

space based on the occupancy status. In addition, the PIR occupancy sensor facilitates

trending of floor space usage in these environments.

In a ZFR1800 Series Wireless Field Bus System application, the sensors communicate

with FAC26 Series, FEC16 Series, FEC26 Series, and VMA16 Series Controllers by

means of the ZFR18xx Series Router.

In wired field bus applications, the sensors communicate with a WRZ-7860 Wireless

Receiver. The WRZ-7860 Receiver transfers data to the controller by means of the Sensor

Actuator (SA) communication bus. In a typical application, one WRZ Series Sensor reports

to one WRZ-7860 Receiver, but up to five WRZSeries Sensors can be associated with a

single WRZ-7860 Receiver for multi-sensor averaging or high/low temperature selection.

The WRZ Series Wireless Room Sensors include models with either a temperature

setpoint dial or the setpoint adjustment pushbuttons and LCD that allows occupants

to view the zone temperature, Relative Humidity (RH), and view and adjust the zone

temperature setpoint. Some temperature and humidity models include a %RH pushbutton

to toggle between temperature and RH on the display. These models also have the capability

to set the desired default display to either temperature or RH. Some models also include

a °F/°C button, which provides a choice between degrees Fahrenheit (F) and degrees

Celsius (C).