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By managing the rate of air escape
If your current burner suffers from poor centering or a damaged flame lock
Industrial Grade Construction: Features high-temperature bearings and a balanced assembly to minimize vibration and audible noise in residential applications
preventing low-ambient cooling issues and extending the service life of your fleet's compressor and motor components
ensuring consistent superheat levels in both high and low ambient temperatures
Lennox 69W42 Limit Switch 318518-761 By managing the rate ofThe Lennox 69W42 Limit Switch, also identified as the L220 30 Limit Switch, is a critical OEM safety component engineered for precise thermal regulation within Lennox, Armstrong, and Ducane furnaces. This furnace high limit switch features a 220F opening threshold to interrupt the electrical circuit immediately upon detecting an over temperature condition, effectively preventing heat exchanger damage and ensuring operational safety. With an automatic