Carrier Infinity Thermostat Wiring Diagram

The basic ABCD wiring stays the same, but where those wires go changes depending on your equipment. Below are the most common scenarios.

However, the wiring diagram changes completely. The Infinity thermostat is backward compatible, but you must configure it correctly during setup (via the "Advanced Setup" menu) to tell it that it is controlling "Non-communicating" equipment. Carrier Infinity Thermostat Wiring Diagram

Run a 4-wire cable from the ABCD terminals on the back of the thermostat to the matching ABCD terminals on the furnace or fan coil control board. The basic ABCD wiring stays the same, but

A comprehensive diagram will include callouts for: The Infinity thermostat is backward compatible, but you

Because of this, the wiring diagram is fundamentally different. The Infinity Thermostat (such as the Touch-N-Go series) is designed to talk to an Infinity Furnace and an Infinity Air Conditioner or Heat Pump.