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which can be left disconnected if the boiler or pump logic does not require it
this is a 'Less Plug' model
supporting heat pump reversing valves energized in either heating or cooling modes
which protects against thermal shock and ensures immediate heat transfer availability
Lennox 11U71 Pressure Switch 320788-702 which can be left disconnectedThe Lennox 11U71 High Altitude Pressure Switch is a critical safety component designed for furnace pressure switch replacement in systems operating at elevations between 4,500 and 7,500 feet. Calibrated with a precise 0. 85" WC (water column) actuation point, this OEM Lennox part ensures the inducer motor generates sufficient static pressure for safe combustion before allowing the gas valve to energize. This specific 104371 08 model is a SPST N. O.
US$ 37.90
US$ 37.90
US$ 37.90
