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If there is an open circuit or if the coil does not pull in when 24V is applied
ensuring the air-to-gas mixture remains within stoichiometric limits for peak combustion efficiency
Manufactured to meet OEM electrical specifications
74" WC setpoint
Watts 0881399 Air Gap If there is an openThe Watts 0881399 Air Gap (model 909 AG A) is a heavy duty, cast iron drainage fitting specifically engineered for Watts Series 909 RPZ backflow preventers within the " to 1" and 1 " to 2" size ranges. This genuine OEM component facilitates the physical separation required by plumbing codes between the relief valve discharge port and the drain line. By creating a visible, vertical air gap, it prevents cross contamination and back siphonage in the
