The 825 RPM operational speed is critical for matching original equipment air volume requirements

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

this unit ensures reliable exhaust gas removal and vacuum pressure for pressure switch engagement

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

maintaining consistent superheat adjustment across a wide operating range

Resideo RC845 Relay R-22 The 825 RPM operational speedThe 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