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minimizing downtime during repairs
you generally require the AV-400 or AV-401 series
this 13-foot 3-inch model can replace shorter variants like the WHA-P399-100 if additional slack or a different routing path is required for the pressure sensor installation
the thermocouple generates the millivoltage necessary to hold the gas valve open
Utica-Dunkirk 14622011 Relief Valve R-407C minimizing downtime during repairsFor 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
