the Watts ETX series can be installed in either a vertical or horizontal orientation

which allows for direct wall mounting or securing to a standard outlet box

managing both positive and negative pressure environments up to 100 psi

and Tempstar equipment

Lennox 52M46 Control Board Els PW 17895 the Watts ETX series canThe Lennox 52M46 Control Board, also identified by part number 52M4601, is the direct replacement integrated furnace control (IFC) for reliable ignition and blower motor management in Lennox G40, G41, and G50 series units. Optimized for single stage gas furnaces, this circuit board manages the hot surface ignitor (HSI) timing and flame rectification sensing to ensure stable combustion cycles. Contractors often source this for diagnostic code flashes