The TZ40 Thermostat provides typical thermostat functions as well as the capability to send and receive information via ZWave communications. This communications capability allows the thermostat’s setpoint, mode and fan operation to be changed or monitored remotely.

The thermostat consists of three parts, a Wall Display Unit (WDU), a HVAC Control Unit andthe ZWB ZWave Adapter. The Wall Display Unit looks like a traditional thermostat and is the wall mounted user interface for the TZ40. It provides display, control pushbuttons, and the temperature sensor. The WDU connects to the Control Unit by a 4 wire cable. The Control Unit connects to the HVAC system in place of a standard thermostat and provides thermostatic control of the system. The ZWB ZWave communications adapter connects to the control unit RS485 port and can be located in a convenient location up to several hundred feet from the HVAC system.