Specialist in Climate Control Since 1945

Switchbox C10


Switchbox for Mark Calflo

Switchbox for controlling a Calflo with on/off fan based on room temperature with minimum inlet temperature restriction.


  • Steel box with cylinder lock
  • Regulator for the room temperature and minimum inlet temperature restriction using 2-10Vdc control signal.
  • Selector for heat/off/ventilate.
  • Failure lamps for:
  •     Burner failure.
  •     Intake air failure
  •     Burner fan thermally off
  •     Maximum failure
  •     Dirty filter
  • Operating lamps for:
  •     Burner on
  •     Burner in operation
  •     Release of control
  • Reset button to reset a burner failure.
  • voltage free contact to operate extraction (24Vmax).
  • voltage free contact (supply to third parties) to check whether extraction is operating.
  • A room temperature sensor supplied separately.
  • A duct temperature sensor supplied separately for the minimum inlet temperature restiction.

Order code

  • 3002231


Controls/to be applied for:

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