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Safety Notice – Proposition 65
preventing motor burnout without requiring manual reset
Operating at a nominal 575 VAC
Audible humming or excessive heat often indicates an overloaded HVAC transformer or a partial short in the secondary circuit
Using genuine OEM replacement parts like the P322660 ensures the unit maintains its safety agency listings and performance profiles
Lennox 15P85 Pressure Switch 318423-701 Safety Notice – Proposition 65The Lennox 15P85 Pressure Switch is a critical safety component designed for precise combustion air pressure monitoring in HVAC systems. Specifically calibrated with a 0. 55" WC set point (Water Column), this OEM replacement part (also identified by part number 105078 01 and 101859 07) ensures that the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed. Engineered for reliability in Lennox gas furnaces, this