![266932 – Dungs AA-A2-6-2 Air Pressure Switch, 0.16-1.2″ W.C.](http://combustionsupplies.com/cdn/shop/products/Dungs_Air_Switch_Threaded_10210ec3-0aaf-475e-9c5e-2f5bb1fe21d3_{width}x.jpg?v=1576283796)
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Dungs AA-A2… Differential Air Pressure Switches are field adjustable, compact pressure switches for automatic burner controls. Available with hose or NPT threaded connections.
The AA-A2-6… differential pressure switches are suitable for making and/or breaking a circuit when the medium pressure changes relative to the setpoint. The AA-A2-6… versions feature NPT threaded connections that also include a test button in the lower housing.
Application:
Differential pressure monitoring in firing, ventilation and air-conditioning systems. The AA…A2/A4 can be used as a pressure, vacuum or differential pressure switch for air and nonaggressive gases. Not suitable for natural gas, propane, butane and other combustible gases.