Carrier HH18HA420 Limit Switch 322838-754 Optimized Efficiency: Designed for R-410A

Optimized Efficiency: Designed for R-410A refrigerant to maintain precise superheat and improve SEER ratings

This motor

and a 24-inch ignitor/sensor assembly

Is this fan compatible with standard Curtis wiring harnesses

Carrier HH18HA420 Limit Switch 322838-754 Optimized Efficiency: Designed for R-410AThe 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