The Lennox 57W79 Pressure Switch is a critical OEM safety component engineered for precise inducer draft monitoring in Lennox gas furnaces

While designed for York and Luxaire (Johnson Controls)

This 1/2-inch standard service kit allows for field-level restoration of valve performance without requiring full body replacement

What is the maximum static pressure rating for this valve

a heavy-duty hub puller is often required to remove galvanized wheels from old motor shafts

Honeywell DP2040A5004 Contactor 326070-701 The Lennox 57W79 Pressure SwitchProfessionals in the field know that reliability is non negotiable when it comes to inductive motor control. The Honeywell DP2040A5004 PowerPro Definite Purpose Contactor is engineered to meet the rigid ARI 780 Standard, rated for a 500,000 cycle mechanical life and a 200,000 cycle electrical life. This 2 pole 40 amp contactor features a 24Vac coil and silver cadmium oxide contacts specifically chosen to withstand high arc duty cycles without welding