Lennox 69M18 Pressure Switch Freon a start capacitor and relay

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Lennox 69M18 Pressure Switch Freon a start capacitor and relayThe Lennox 69M18 Pressure Switch, also identified by part number 69M1801, is a critical safety component engineered for high pressure monitoring in professional HVACR applications. As a Lennox OEM replacement part, this high pressure cutout switch is factory calibrated to trigger a manual reset (M R) cutout at 640 PSI. This precise threshold is essential for protecting the compressor from catastrophic failure due to excessive discharge pressure,