The Johnson Controls A19AAD-26 Utility Thermostat is a heavy-duty

preventing shifting and excessive mechanical vibration

Complete Install Kit: Includes the valve

utilizing the same mounting footprint and power requirements for a streamlined swap

minimizing turbulence and ensuring that the refrigerant maintains the correct velocity as it passes through the connection point

Resideo RC845 Relay R-22 The Johnson Controls A19AAD-26 UtilityThe Resideo RC845 Relay is an essential heat pump add on relay engineered for integrating modern heat pumps with existing fossil fuel furnaces. Professional contractors rely on this switching relay to manage the handoff between high efficiency cooling and auxiliary heating sources, such as gas, oil, or electric furnaces. This AddOn Fossil Fuel Relay features a low voltage dry contact output for triggering auxiliary heat and a dedicated line voltage