Carrier HH18HA508 Limit Switch 320788-704 ensuring consistent airflow and thermal

ensuring consistent airflow and thermal management within HVACR cycles

For technicians servicing steam or hydronic systems

and P331-2108

including ducts and plenums

Carrier HH18HA508 Limit Switch 320788-704 ensuring consistent airflow and thermalThe Carrier HH18HA508 Limit Switch is a critical OEM replacement part designed for precision thermal monitoring in Carrier, Bryant, and Payne gas fired furnaces. As a primary safety component, this 120 160 degree limit switch features an automatic reset function, ensuring the burner circuit interrupts if internal plenum temperatures exceed the 160F threshold and restores operation once the system cools to 120F. Engineered for high cycle reliability in