Carrier HH18HA420 Limit Switch 320735-701 sending a microamp signal to

sending a microamp signal to the gas control valve to ensure safe operation

Always cross-reference your compressor's model and serial number against the HVAC part specifications to ensure a match

This motor is critical for maintaining the proper draft required to satisfy safety circuits and prevent soot buildup on the burner assembly

this valve is optimized for maximum throughput in laundry equipment

it typically pairs with a TE-6300 Series plastic or metal conduit box

Carrier HH18HA420 Limit Switch 320735-701 sending a microamp signal toThe Carrier HH18HA420 Auto Limit Switch is a critical HVAC safety device designed to monitor internal furnace temperatures and protect the heat exchanger from thermal stress. This OEM Carrier replacement part operates with a fixed 90 120F temperature range, ensuring the burner cycles off if the unit exceeds safe operating parameters. As a precision calibrated 90 120 degree limit switch, it features an automatic reset function that restores continuity