Heat Pump Thermostat Wiring Chart Diagram – HVAC Heat Pump Thermostat Wiring Chart. This is for use for heatpumps. You should 100% make sure that you have a heat pump system and not an air conditioner with electric heating strips as it is a common mistake for people to misidentify their HVAC systems. How to Wire a Heat Pump for Control [ Thermostat Wiring How to Wire a Heat Pump for Control - There may be a time when you will want to change your old heat pump thermostat with a new heat pump thermostat. We have other articles here that will help you with thermostat wiringe other articles help you with thermostat wiring colors and thermostat wiring diagrams this article, we will provide specific information for wiring a heat pump for control.