Lennox 14T65 Switch Kit 322838-753 Key Benefits Optimized Compressor Longevity:

Key Benefits Optimized Compressor Longevity: Enforces a strict five-minute cooldown period to prevent locked rotor amperage (LRA) spikes common in short-cycle scenarios

allowing for precise calibration to match specific internal plenum requirements

This model utilizes a 10k ohm Type II thermistor

Key Benefits OEM Compatibility: Specifically calibrated for York air handler units

Lennox 14T65 Switch Kit 322838-753 Key Benefits Optimized Compressor Longevity:The Lennox 14T65 Switch Kit, specifically the High Alt SwtchKit 7501 10000ft, is a critical high alpine pressure switch conversion designed for Lennox gas furnaces operating at extreme elevations. This kit ensures safe and reliable ignition by adjusting the vacuum pressure thresholds to account for thinner air density at altitudes between 7,500 and 10,000 feet. This Lennox OEM furnace part replaces standard factory switches that may fail to close at