Description
This is a BRAND NEW OEM Trane/American Standard Gas Furnace Air Pressure Switch. The Trane/American Standard Part # is SWT03221 or SWT3221 (Honeywell # IS20428-6006). It is rated at 1.40" W/C with 2 witing terminals and 2 hose ports. It works on many Trane/American Standard gas furnaces.
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:
IS20428-6006 IS204286006
Repair Difficulty Level:
Partial List of Units that Use This Item:
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