Specialist in Climate Control Since 1945

W9-1 BR

Order code: 3004371

Switchbox for controlling 1 air heater with 100% external air supply on the basis of room temperature and minimum inlet temperature monitoring.


  • Steel plate box with cylinder lock; dimensions of switchbox 300x400x150mm (hxwxd).
  • Temperature controller for monitoring the room temperature.
  • Temperature controller for monitoring the minimum inlet temperature.
  • Selector 1/0/2 heating/off/ventilation.
  • Indicator lamp for indicating filter malfunction.
  • Illuminated reset button to indicate and reset a burner malfunction
  • Control of the 230 V open/close servo motor with limit switch.
  • Potential-free contact to operate the extraction unit (24Vmax).
  • Potential-free contact, third-party supply, for the switching of the air heater by the extraction unit.
  • Supplied separately: PT100 duct sensor and room sensor.

Can be used for:

  • G(N)ST/RE
  • G(N)CT/RE

Controls/to be applied for:

GC air heater

Reliable and highly versatile Over the past 70 years, this gas-fired air heater with centrifugal fan has proven itself...

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