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65" WC Setpoint: Pre-calibrated for exact differential pressure monitoring to prevent ignition during improper venting
the thermocouple generates the millivoltage necessary to hold the gas valve open
What is the difference between 60L27 and 60L2701
you generally require the AV-400 or AV-401 series
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Utica-Dunkirk 14622011 Relief Valve R-407C 65" WC Setpoint: Pre-calibrated forFor veteran HVAC technicians and mechanical contractors service maintaining hydronic heating systems, the Utica Dunkirk 14622011 Relief Valve is the specified OEM replacement part for ensuring critical overpressure protection. This 3 4" relief valve 30# is engineered with a high grade durable brass construction, designed to withstand the rigorous thermal cycles of residential and commercial boiler operations. With a fixed pressure rating of 30 PSI and