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The Weil McLain 511-330-080 Pilot Burner Assembly is a precision-engineered OEM replacement part designed for reliable ignition in residential gas boilers
and 3/4" internal diameter (I
You should swap your existing orifices or install new ones calibrated for the specific BTU and gas type (Propane or Natural Gas) required for the job
the York S1-025-43289-000 is an automatic reset switch
Siemens Building Technology 331-4810 Actuator R-448A The Weil McLain 511-330-080 PilotThe Siemens 331 4810 is a rugged, metal fabricated No. 3 Pneumatic Actuator engineered for reliable modulating or two position control of HVAC dampers and terminal units. Built with all metal construction and a totally enclosed housing, this 331 Series actuator is a staple for contractors maintaining mixing box dampers, unit ventilators, and air valves. It features a 2 3 8 inch stroke and a nominal 8 13 psi spring range, allowing for precise