the first switch must control the fan to ensure it remains on until all elements are de-energized

it is not recommended for high-pressure steam service

" Inconsistent fan speeds are also a frequent indicator

It features a fixed 200-degree Fahrenheit trip point

Bell & Gossett 110127 Relief Valve 321042-401 the first switch must controlThe Xylem Bell & Gossett 110127 Relief Valve is designed to provide dependable overpressure protection for commercial hydronic heating and hot water systems. This 3 4 inch pressure relief valve is factory set to open at 125 PSI, helping protect boilers, heat exchangers, pumps, and system piping from excessive pressure conditions that can compromise equipment performance. Rated for systems up to approximately 2,535,000 BTUH, this valve is commonly