including Bryant

Designed with a focus on field efficiency

check your system's head pressure before installation

allowing for precise management of multiple heating or cooling stages

or a significant discrepancy between the controller's displayed temperature and actual conditions caused by resistive drift

Carrier HH18HA504 Limit Switch Freon including BryantThe Carrier HH18HA504 Limit Switch is a critical OEM replacement part designed for high limit temperature monitoring in HVAC furnaces. This automatic reset limit switch is engineered to open the burner control circuit when internal plenum temperatures reach the 180F to 220F threshold, effectively preventing heat exchanger damage and ensuring safe operational cycles. As a specialized furnace safety switch, this component features a cut out temperature