Dungs AA C2 Air Pressure Switch

  • Differential Pressure Switch
  • Field adjustable
  • Hose connection
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Dungs AA-C2 Differential Air Pressure Switches are field adjustable, compact pressure switches for automatic gas burning equipment controls.

Dungs AA…C2 differential pressure switches are suitable for making and/or breaking a circuit when the medium pressure changes relative to the set point. The set point can be set in the field by the adjustable dial and an integrated scale.

Differential pressure monitoring in firing, ventilation and air-conditioning systems. The Dungs AA…C2 can be used as a pressure, vacuum or differential pressure switch for air and non-aggressive gases. Not suitable for natural gas, propane, butane and other combustible gases.

Hose mount; air pressure switch for differential, vacuum or positive pressure; field adjustable setpoint; Screw terminals with 1/2 NPT Conduit connection.

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UL, CSA and FM

Dungs AA…C2 Series NEMA 4, Hose Connection
266940 – Dungs AA-C2-4-2 Air Pressure Switch, 0.16-1.2″ W.C.
266941 – Dungs AA-C2-4-3 Air Pressure Switch, 0.4-4″ W.C.
266939 – Dungs AA-C2-4-1 Air Pressure Switch, 0.8-0.6″ W.C.

Technical Documentation

AA C2 Air Pressure Switch