Coleman Digital Thermostat 6535-3442
Functionality: Heat / Cool / Heat Pump
Also known under part number: 6535-344
In order to use the new thermostat: cut the 3-Pin Connector off the old, then cut the 4-Pin Connector off the new. Attach the 3-Pin Connector to the new thermostat but do not include the orange wire. Or you may wish to select the adapter harness from the option box above.