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Technicians should inspect the filter during every annual maintenance visit
allowing for field-calibrated setpoints that optimize chiller efficiency and prevent low head pressure issues during low ambient operations
this 1-inch assembly enables an infinite 4:1 turndown ratio to accurately track heating loads and eliminate temperature overshooting
4 to 12 Psi Spring Range
Durable Construction: Stainless steel enclosed magnetic plunger prevents sticking and corrosion
Lochinvar & A.O. Smith 100113144 Switch 321042-401 Technicians should inspect the filterThe Lochinvar & A. O. Smith 100113144 Blower Prover Switch is a critical safety component designed for high efficiency water heaters and commercial boilers. As a direct OEM replacement for NS2 1333 01, this pressure switch (often referred to as an air pressure switch or draft prover switch) monitors the differential pressure created by the inducer motor. By verifying stable airflow, it ensures the sequence of operation proceeds to ignition safely.