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Common Questions: Is the ZP42LXE-PFV-800 a direct fit for older ZP42K5E models
as it effectively eliminates the risk of simultaneous heating and cooling overlap
you must follow local electrical codes and use appropriate conduit seals within the hazardous area installation
Applied System Compatibility: Specifically calibrated for York applied equipment
Lennox 78W57 Pressure Switch 322056-301 Common Questions: Is the ZP42LXE-PFV-800The Lennox 78W57 Pressure Switch is a high precision, factory authorized OEM replacement engineered for draft proving and airflow safety monitoring in Lennox heating and cooling systems. Specifically calibrated to actuate at 0. 27" WC (Water Column), this SPST pressure switch features a 1 4" barb connection for secure integration into existing 24V control circuits. Designed as a direct replacement for Lennox part number 101572 04, it is a critical
