maintaining alignment and calibration over extended duty cycles without the frequent need for field adjustments

Advanced Valve Technology: High-grade valves reduce noise and increase volumetric efficiency

this #57 drill size orifice offers the reliable performance required to prevent improper combustion

Featuring a 3/4-inch ODF suction connection and 1/2-inch ODF discharge and liquid lines

Durable Construction: Heavy-duty resistance wire with welded terminals prevents typical failure points at connection blocks

Carrier HH18HA141 Limit Switch 340793-762 maintaining alignment and calibration overThe Carrier HH18HA141 Limit Switch is a critical OEM safety component engineered for precision thermal monitoring in Carrier, Bryant, and Payne gas furnaces. As a normally closed SPST disc style switch, it serves as the primary high limit defense against heat exchanger overheating. This L140 40F limit switch is designed to automatically open the electrical circuit when internal plenum temperatures reach 140F, effectively shutting down the gas valve to