Lennox 80W53 Pressure Switch R-134A Its full range extends from

Its full range extends from a cold-off setting of -7°F to a warm-on setting of 40°F

For contractors performing a York heat pump repair

the H15DA-3 simplifies inventory while ensuring high-capacity performance

ensuring precise valve seating and alignment

and GeneralAire EAC models that require 1856-3 or part number 4744 inserts

Lennox 80W53 Pressure Switch R-134A Its full range extends fromThe Lennox 80W53 Pressure Switch is a critical OEM replacement part engineered for high efficiency furnace applications. This single pole single throw (SPST) switch is factory calibrated to a 0. 68" WC (water column) set point, ensuring precise monitoring of the inducer motor's draft. A failure in this component often results in a sequence of operation lockout, as the control board must verify proper venting before allowing gas valve ignition.