Description
This is a BRAND NEW Lennox/Armstrong/Ducane Gas Furnace Air Pressure Switch. The Part # is 57M67 (also 57M6701 20293416 & Honeywell # IS22171091S5083) & it is rated at 1.71" W/C PF. Switch has 2 hose ports and 2 wiring terminals.
Function:
An air switch is safety designed to ensure that your inducer motor is running at the proper RPM, and creating the proper vacuum for your furnace to flue safely.
Replaces Old Part #s:
IS22171091S5083 20293416
Repair Difficulty Level:
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