Resideo RC845 Heat Pump Add-On Fossil Fuel Relay

The Resideo RC845 Heat Pump Add-on Fossil Fuel Relay is a specialist component that enhances HVAC systems by allowing heat pumps to be seamlessly integrated with fossil fuel heating systems. This relay allows the switch between the heat pump and an additional heat source depending on the temperatures, allowing energy efficiency and improved comfort. With an operating temperature of -4°F to 140°F the RC845 functions optimally in different climates. It is a UL-rated relay and operates at 60 Hz to conform to safety standards. The flexibility of use is further enhanced by its capability to work in conditions of humidity from 0% to 95% (non-condensing).