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Optimized Flow Dynamics: The 4 Cv flow coefficient ensures minimal pressure drop across the 1/2 inch orifice for efficient system performance
The balanced port construction compensates for changes in head pressure
this unit features a durable housing and a precision-balanced wheel to minimize vibration and bearing wear
Technicians should check for 24V output on the secondary side of the transformer
it provides the high-voltage arc necessary to bridge the gap between electrodes
Lennox 78L42 Gas Valve Els PW 17895 Optimized Flow Dynamics: The 4The 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,