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Air Flow Controls

  • Johnson P32 Series-1

Johnson P32 Series

Air proving with electric duct heaters, humidifiers etc. Maximum air flow controller for variable volume systems. Reheat duct powered systems. Clogged filter detection. Detection of icing of air conditioning coils and initiation of defrost cycle.

  • Ambient Temperature: Minimum -40°C Maximum 75°C.
  • Connector: HP Metal 1/8 inch FNPT inside x 1/2inch NPSM outside. LP moulded FNPT.
  • Maximum Pressure: 7 kPa.
  • Mounting: Direct or with L or U bracket supplied.

P32 Series Air Differential Pressure Switch

Cat.No. Part No. Switch Action Range Pa Sensitivity at Minimum Set Point Pa Set Point Scale Plate Bracket Type
143075 P32AC-2 SPDT 12 to 1240 10 Adjustable Yes U
143077 P32AF-2 SPDT 12 to 1240 6 Adjustable Yes U

Supplied with 1/4 inch compression fitting. 100mm extension tube, 2 mounting screws, 0 gasket, angle barb fitting installed.


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