For automatic changeover applications

This switch is designed for the high-temperature environments found in wall furnace blower assemblies

If the furnace ignites but shuts down after only a few seconds

This beige plastic assembly is engineered to restore the professional appearance and functional interface of Honeywell pneumatic thermostats

Lennox 51W92 Pressure Switch For automatic changeover applicationsWhen you're dealing with a Lennox furnace that won't cycle past the inducer stage, the Lennox 51W92 Pressure Switch is the primary diagnostic point for proving draft. This genuine OEM Lennox 51W92 is a single pole, single throw (SPST) normally open switch calibrated to close at 1. 00" WC. Engineering wise, this component is critical for 80% and 90% AFUE mid to high efficiency gas furnaces, ensuring that the combustion blower is moving enough air to