Proper calibration of the high limit setting is essential to protect system integrity and optimize fuel consumption in both residential and light commercial boiler plants

High Power Capacity: Delivers 375VA of power

maintaining critical clearance and airflow across the evaporator or heat exchanger

this genuine replacement provides the reliable durability required by trade professionals

and high-temperature resistant wiring to ensure a reliable furnace ignition system interface

Carrier KR11HY818 Motor Pulley 320074-702 Proper calibration of the highThe Carrier KR11HY818 Motor Pulley is a high duty OEM replacement part engineered for large tonnage commercial HVAC systems, including rooftop units and industrial air handlers. Constructed from precision machined heavy duty steel, this 1 2" bore compatible component is critical for maintaining correct V belt tension and drive alignment. As a veteran requested Carrier motor pulley, the KR11HY818 effectively transfers rotational torque from the drive