Description
This is a Brand New OEM Upgraded 2 Stage Lennox/Armstrong/Ducane furnace air pressure switch. One switch is rated at .35" w/c and the other is rated at .60".
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:
93W78 93W7801
Repair Difficulty Level:
Partial List of Units that Use This Item:
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