utilizing variable speed capabilities to optimize air movement and system static pressure

providing a 0 to 10-second delay to ensure smooth ignition before reaching full modulation

Magnesium is more reactive and provides better protection in soft water environments

While it may appear similar to cartridges used in the WM97+ or Taco 00 series

Lennox 80W57 Pressure Switch 340793-762 utilizing variable speed capabilities toThe Lennox 80W57 Pressure Switch is a critical safety component designed for single stage gas furnaces. This genuine OEM Lennox furnace pressure switch is calibrated to actuate at . 65" WC (water column), ensuring that the combustion air inducer motor is generating sufficient negative pressure before the ignition sequence begins. Engineered with a single pole single throw (SPST) configuration and Normally Open (N. O.) contacts, this switch protects