Common Questions Is the 971-0329-04 compatible with all Copeland compressors

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

Designed for precise industrial temperature control

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

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

Resideo RC845 Relay R-22 Common Questions Is the 971-0329-04The 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