Direct OEM Replacement: Guaranteed fit for Lennox PCO20-28 air purification units without cabinet modifications

The diagnostic LED indicator facilitates rapid troubleshooting by signaling specific fault codes

Can I use this to replace a Trane D341235P01

always verify the specific wiring requirements of your unit's schematic

Lochinvar & A.O. Smith 100217965 Pressure Switch 30067439-890 Direct OEM Replacement: Guaranteed fitThe Lochinvar & A. O. Smith 100217965 Pressure Switch is a critical safety component designed for precise monitoring of the combustion air sequence in high efficiency water heaters and boilers. This 2. 3" WC blocked inlet pressure switch functions as a normally open contact that closes when the inducer fan generates the required negative pressure, ensuring the venting system is clear of obstructions before ignition. Engineered for compatibility with