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making it the standard replacement for the 221455A/U part number
Because of the increased surface area of the deep pleats
Critical Safety Compliance: Ensures the fan/limit control sequence operates within OEM specifications to prevent heat exchanger fatigue
ensuring correct mounting and limit switch wiring
this component is a primary solution for technicians troubleshooting "stuck" systems or electrical failures within the reversing circuit
Nordyne 632424R Pressure Switch Els PW 17895 making it the standard replacementThe Nordyne 632424R Pressure Switch is a critical safety component for HVAC technicians servicing Nordyne gas furnaces and air handlers. Engineered as a genuine OEM replacement part, this normally open SPST switch is factory calibrated to a 0. 77" WC (water column) trip point. It establishes a 24V control signal when the draft inducer motor successfully generates sufficient negative pressure, ensuring the combustion blower is operational before the