Resideo HPSR104 Switching Relay 323055-751 making it the go-to component

making it the go-to component for contractors installing Temp-Stat thermostats in 240VAC environments

Helps provide additional starting torque

allowing technicians to optimize the viewing angle in tight mechanical rooms or complex piping layouts

Durable Construction: Built to withstand commercial and residential thermal cycling within Carrier-family furnaces

the 78G10 is the direct 24V equivalent and is functionally identical to the YR DM-2 and 78G1001 part numbers

Resideo HPSR104 Switching Relay 323055-751 making it the go-to componentThe Resideo HPSR104 is a robust four zone switching relay designed for professional hydronic applications. This 120V pump zoning panel provides precise control for up to four circulator pumps, integrating a dedicated priority zone for domestic hot water (DHW) calls. Engineered for versatility, it is fully compatible with most thermostats, including power stealing, electromechanical, and modern smart thermostats like the T6 Pro. Each thermostat