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With a NEMA 2 rated housing and a universal bolt-on clamp that fits shafts from 1/2 inch to 1
maintaining tight tolerances and improving energy efficiency on the line
The CCW rotation (lead end) and 1/2" x 3" shaft make it a standard drop-in replacement for failed induction motors in compatible furnace and air handler units
Built to withstand the high static pressure environments of mobile and manufactured home heating systems
providing a wide operating envelope for R-134a
Lochinvar & A.O. Smith 100187858 Switch 319848-301 With a NEMA 2 ratedThe Lochinvar & A. O. Smith 100187858 Blower Prover Switch is a critical safety component designed for high efficiency gas fired boilers and commercial water heaters. This 1. 0" WC air pressure switch serves as a high limit safety device, ensuring the combustion air blower is generating sufficient airflow before allowing many Lochinvar Knight or A. O. Smith Cyclone models to proceed with the ignition sequence. Acting as a OEM replacement pressure