Description
This is a BRAND NEW Lennox/Armstrong/Ducane Gas Furnace Air Pressure Switch. The Part # is 92L21 (also 92L2101 20293412 & Honeywell # IS20151-3440) & it is rated at 1.61" 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:
IS20151-3440
Repair Difficulty Level:
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