Lochinvar & A.O. Smith 100163259 Sight Glass Kit 326058-758 the J997MDA-2 and J997MDA-2H are

the J997MDA-2 and J997MDA-2H are functionally identical and serve as direct replacements for one another in standing pilot circuits

Smith GCV and GVR series tanks

5% of the selected range

this 1/20 HP shaded pole motor operates at 3300 RPM to establish the necessary static pressure for the furnace pressure switch to prove the combustion cycle

allowing for efficient vertical mounting and quick calibration

Lochinvar & A.O. Smith 100163259 Sight Glass Kit 326058-758 the J997MDA-2 and J997MDA-2H areThe Lochinvar & A. O. Smith 100163259 Sight Glass Kit is a critical OEM replacement part designed for high performance visual monitoring in Lochinvar Knight and A. O. Smith residential and commercial boilers. Engineered for high pressure HVACR environments, this kit allows technicians to verify flame ignition and combustion stability without compromising the integrity of the heat exchanger seal. As a direct replacement for obsolete part numbers