as these larger frames prioritize terminal security and enclosed safety

preventing intermittent loss of flame signal

The PRBUP-3-T is configured for On/Off or Floating point control

check your specific unit's wiring diagram to ensure the limit switch is correctly integrated into the safety string

Always verify lead lengths and mounting offsets before securing

Watts 0276980 Valve 318172-701 as these larger frames prioritizeThe Watts 0276980 is a high capacity boiler pressure relief valve engineered for industrial and commercial hot water heating systems. Part of the Watts Series 174A, this 1 1 2 inch NPT valve is ASME Section IV certified and specifically designed to provide emergency safety relief for high output equipment. With a fixed pressure setting of 125 psi, it delivers a massive steam discharge capacity of 6,460,000 BTU hr, ensuring system protection during