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This OEM air pressure switch acts as a fail-safe
Equipped with heavy-duty sealed relays and an automatic resettable fuse
high-temperature specific valve bodies with appropriate seat materials are required
it ensures the combustion process only initiates once proper venting is confirmed
when paired with a pitot tube
BROAN-NuTone 509S Vent Fan 321894-706 This OEM air pressure switchContractors, when you need reliable, direct discharge ventilation, the BROAN NuTone 509S Vent Fan is your go to solution. Engineered for robust performance, this unit delivers a powerful 200 CFM airflow, effectively managing humidity, odors, and fumes in spaces up to 195 sq. ft. Its galvanized steel housing ensures long term durability, capable of withstanding harsh conditions. Installation is streamlined; the fan ducts directly through an outside
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