Carrier HN61HB545 Start Relay 322056-301 Industrial-Grade Build: Features a die-cast

Industrial-Grade Build: Features a die-cast aluminum inlet base and a moisture-resistant electrical housing for long-term reliability

this valve is specifically calibrated for the pressure characteristics of R-410A refrigerant and should not be used in legacy R-22 equipment

Improved Fuel Efficiency: Precise gas modulation helps reduce wasted propane through better burner control

non-programmable digital thermostat engineered for straightforward reliability in 1-heat/1-cool conventional systems and heat pumps without auxiliary heat

Common Questions What is the difference between the Model 51 and the 51-2

Carrier HN61HB545 Start Relay 322056-301 Industrial-Grade Build: Features a die-castThe Carrier HN61HB545 Start Relay is a mission critical potential relay designed for high starting torque applications in Carrier, Bryant, and Payne HVAC units. Engineered to provide the necessary phase shift for starting PSC and CSCR compressors, this HVAC start relay features a precise pick up and drop out voltage calibration to prevent capacitor overheating and winding damage. This genuine OEM Carrier replacement part ensures the compressor motor