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Simplified installation footprint reduces labor hours during preventative maintenance and coil replacements
What is the difference between a manual and automatic reset switch
It is primarily used in hydronic heating
the valve must be installed with the stem in the vertical position
Resideo FM911 Valve Els PW 17895 Simplified installation footprint reduces laborThe 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
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