Description
This is a BRAND NEW OEM Lennox/Armstrong/Ducane Gas Furnace Air Pressure Switch. The Lennox/Armstrong/DucanePart # is 20011143 and the Honeywell part # is IS20152-3438 . It is rated at .35" W/C PF. Switch has 1 hose port 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:
20011143 IS20152-3438
Repair Difficulty Level:
Partial List of Units that Use This Item:
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