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It supports critical system functions including mode selection
Professional Grade: Ideal for 208V electrical circuits commonly found in commercial building automation and central plant systems
Precise Thermal Calibration: Features a factory-set 180°F opening point to protect the heat exchanger from excessive internal temperatures
the 19L57 and 19L5701 are identical components and can be used interchangeably in all supported Lennox equipment
Burnham Boiler 109621-01 Gas Valve Els PW 17895 It supports critical system functionsThe Burnham Boiler 109621 01 Gas Valve is a critical OEM replacement component designed for precision fuel regulation in residential and light commercial cast iron boilers. This Honeywell VR8204H1006 equivalent functions as a combination redundant gas valve, integrating a manual valve, two automatic operators, and a pressure regulator into a single compact footprint. This specific model is a high capacity 1 2" x 1 2" NPT intermittent pilot gas valve
US$ 72.50
US$ 60.00
US$ 115.03