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Specialist in Climate Control Since 1945

Switchbox C22

Switchbox

Switchbox for Mark Calflo

Order code: 3002243

Switchbox for controlling a Calflo with high/low fan based on room temperature with minimum inlet temperature restriction. With day/night temperature monitoring.

Specifications:

  • 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
  • High/low selector supply fan selector
  • Digital time switch with weekly programme
  • A holiday switch to allow the device to be operated at the night-time temperature over longer periods
  • A digital timer (0-6 hours) to switch to the daytime mode temporarily outside the clock programme
  • Failure lamps to indicate:
    • A burner failure;
    • A supply air pressure failure
    • A burner fan thermally off failure
    • A maximum/gas pressure failure
    • A dirty filter failure
  • Operating lamps to indicate:
    • Burner on
    • Burner off
    • Supply fan low
    • Supply fan high
    • Release control
  • Reset button to reset a burner failure
  • voltage free contact to start extraction (24V max)
  • voltage free contact to switch extraction to high (24V max)
  • voltage free contact (supply to third parties) to check whether extraction is operating at low
  • voltage free contact (supply to third parties) to check whether extraction is operating at high
  • A room temperature sensor supplied separately
  • A duct temperature sensor supplied separately for the minimum inlet temperature restiction

Controls/to be applied for:

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