According to Arzel, "The contractor will see an immediate simplification of the installation." No additional controls are needed. Everything necessary for proper installation is built into the zone control, including: outdoor thermostats, a low ambient kit, outdoor reset, bypass control, and smart staging. Contractors can use a standard heat-cool thermostat, or a heat pump thermostat. The setup wizard provided guides installers through the setup process.
The Heat PumPRO stages compressors on demand by the thermostat or when it senses that the air in the ductwork is not warm or cold enough. This occurs independently from the air handler.