Switchbox C20

Switchbox for Mark Calflo

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

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
• Failure lamps for:
  • Burner failure
  • Intake air failure
  • Burner fan thermally off
  • Maximum/gas pressure failure
  • Dirty filter
• Operating lamps for:
  • Burner on
  • Burner in operation
  • 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