A Bell And Gossett 112013 Airtrol Fitting manages air and water separation at the tank connection, supporting steady flow and balanced performance in the system.
The airtrol fitting manages air control at the expansion tank connection so the HVAC system can maintain stable pressure and reduce unwanted air movement through the piping. Its design for a 24-inch tank matters because the proper fit and flow characteristics support reliable separation of air and water, which promotes smoother performance in heating and cooling equipment.
The airtrol fitting may be wearing out if the heating and cooling unit shows pressure instability, recurring air noise in the lines or less consistent system performance. Physical signs can include corrosion, leakage or damaged threads and you might notice moisture buildup or rust forming around the tank connection area.
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