Wiring Carrier furnace with Nest Learn thermostat. We have a Carrier Infinity thermostat (last pic) but want to change to a smart one. In pics from the furnace, left side is where the Infinity is connected. Can I switch the wires from chip to motherboard: D>R, C>W, B>Y, A>G for Nest to work?. First and foremost, it is important to understand the wiring diagram for the Carrier Infinity Thermostat. This diagram shows the different wires and their corresponding terminals on both the thermostat and the HVAC unit.
Thermostatic Controls - Rewire carrier infinity to Nest Thermostat - Hello I am a novice trying to hook up my nest thermostat to my carrier infinity system ABOVE is the original wiring in the indoor Unit ABOVE is the wiring connections between the Handler, condensor and thermostat.. Customer: I want to replace my Carrier Infinity thermostat with a Nest Learning thermostat. My understanding is I need to rewire my furnace to work with Nest.What rewiring do I need to do?Here is my current equipment: 1. Current Model of thermostat: Carrier TSTATCCPRH01-B 2. System type: Heat Pump (propane backup) and AC 3. Carrier Furnace Infinity 96 model #58MVB100-20Here is the current.