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The internal switches are rated for standard line voltage (120V AC) and 240V AC applications
offering seamless backward compatibility for older furnace pressure switch installations
providing an essential fail-safe for building climate control
For contractors managing York HVAC equipment
Lennox 78L42 Gas Valve Els PW 29614 The internal switches are ratedThe Lennox 78L42 is a high performance 24V 2 stage gas valve engineered for precision fuel regulation in residential and light commercial forced air systems. This genuine OEM Lennox replacement part, often cross referenced as 78L4201, is manufactured by Honeywell (Model VR8205Q2662) to ensure seamless integration with Lennox G32 and GHR32 series furnaces. Featuring a 1 2" NPT inlet and outlet, this natural gas valve supports dual stage heating,