Durable Construction: Built to withstand high-cycling environments common in residential HVAC heating cycles

utilizing R

At a total length of 8

Thermal Protection: Actively pulls heat away from the inducer motor

Ease of installation provided by field-wired screw terminals and a compact footprint for tight mechanical spaces

Lochinvar & A.O. Smith 100111056 Prover Switch 322838-753 Durable Construction: Built to withstandThe Lochinvar & A. O. Smith 100111056 Blower Prover Switch is a critical safety component engineered for precise airflow monitoring in high efficiency commercial gas water heaters. As a direct replacement for the NS2 0544 00 air pressure switch, this assembly ensures the inducer fan effectively clears combustion gases before the ignition sequence initiates. This OEM replacement part is built with a rugged pneumatic diaphragm that converts pressure