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as well as heat pumps that do not require auxiliary or emergency heat stages
it can be used in any 5k Ohm thermistor circuit requiring a 4-inch probe
or repeated system lockouts due to weak spark intensity
This is critical for synchronizing the reversing valve
Resideo FM911 Valve Els PW 17895 as well as heat pumpsThe Resideo FM911 (identical to the FM911 U) is a high performance boiler fill valve and backflow preventer combo engineered for precise hydronic heating system maintenance. This 1 2 inch assembly features a pressure regulating valve factory preset at 12 PSI, though it is field adjustable from 4 to 60 PSI to accommodate systems in buildings up to 12 stories. Designed specifically for expansion tank mounting, the unit utilizes a balanced seat piston
US$ 1650.00
US$ 5400.00
US$ 1375.00