Home -> UPB Devices Serial RS-485 Thermostat Our Price $299.95 Product Variation TR16 Serial RS-485 Thermostat $299.95 Buy item(s) The TR16 Serial RS-485 Thermostat connects to, monitors and controls an HVAC mechanical system via it's standard thermostat connections. The TR16 consists of two components, the Wall Display Unit (WDU) and the Thermostat Control Unit (TCU). Normal local control of the HVAC system is provided by the WDU with is typical thermostat like user interface. The TCU provides all HVAC mechanical systems outputs as well as the RS-485 remote systems interface. HVAC Systems Compatibility: Works with standard Gas/Electric or Heat Pump HVAC mechanical Systems 2-stage Heating, 2-stage Cooling for Gas/Electric systems 3-stage Heating, 2-stage Cooling for Heat Pump systems Fan selection for fan w/heat operation Heat Pump Changeover selectable for Heat or Cool operation Features: Separate Heat and Cool Setpoints Up to 3 Stage Heat, 2 Stage Cool Two part design Backlit LCD Wall Display Unit For standard gas/electric or heat pump HVAC systems Replaces existing 4 or more wire thermostats without the need for additional wiring Optional Remote Temperature Sensor Uses UPB powerline protocol UPB powerline communications module not included Power: 24VAC supplied from HVAC system Serial Interface RS-485, 9600 N81, half-duplex Uses ASCII based freeform character strings TR16 Serial RS-485 Thermostat Manual: Download the TR16 Serial RS-485 Thermostat Manual Related Items Worth Considering RCS TXB16 X-10 Controlled Thermostat UPB Thermostat Product Variation TR16 Serial RS-485 Thermostat $299.95 Buy item(s)