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or auxiliary fans within demanding HVACR environments
dry refrigerant flow
Use a calibrated manometer to verify it closes at -0
low-resistance electrical pathway to the gas valve
McDonnell & Miller 250-3/4-15 Valve Els PW 17895 or auxiliary fans within demandingThe McDonnell & Miller 250 3 4 15 is a high performance 3 4" NPT Pressure Relief Valve engineered for critical over pressure protection in hydronic heating systems and storage tanks. Featuring a robust bronze body and seat, this valve is factory set at 15 PSI with a substantial thermal discharge capacity of 515,000 BTU hr. Designed to meet ASME Section IV code requirements for heating boilers, it utilizes an EPDM rubber diaphragm and seat disc to
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