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The 120Vac solenoid is protected by a NEMA 4X enclosure
Engineered for high-performance HVAC gas furnace models
reliable installation in the field
As a genuine BASO Gas Products component
Lennox 73W33 Pressure Switch 318518-761 The 120Vac solenoid is protectedThe Lennox 73W33 is a high precision dual stage pressure switch engineered for specific Lennox furnace models and air handlers. This OEM replacement pressure switch serves as a critical safety component, monitoring the pressure differential within the combustion blower. With setpoints calibrated at . 68 . 35 WC, it ensures proper venting and blower performance before allowing the ignition sequence to proceed. As a two stage pressure switch, it manages
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