Boxed and brand new

Separate Heat and Cool Setpoints, Up to 3 Stage Heat, 2 Stage Cool, Remote control of all functions via RS-485 remote interfaces, 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,

The TR16, or TR60, connects to, monitors and controls an HVAC mechanical system via it's standard thermostat connections. The TR16, or TR60, 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 its typical thermostat like user interface. The TCU provides all HVAC mechanical systems outputs as well as the RS-485 remote systems interface. The WDU and TCU connect to each other, via a 4-wire RCSLink (2 power, 2 data) using the existing thermostat wiring. The TCU connects to an automation system via cat-5 wiring. PDF's and protocol here: http://www.resconsys.com/products/stats/serial.htm

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.

Fuse protected relay outputs to the mechanical systems.

Serial Interface

RS-485, 9600 N81, half-duplex

Uses ASCII based freeform character strings