Go to content

EvoControl Ventilation - Counterflow

Models: C125T G1, C250T G1

6.7 External inputs

The capacity and heat of the unit can be changed via potential-free contacts on the terminal block inputs. E.g. occupancy sensor, timer.

The External 1 and External 2 operating modes can only be selected by closing the terminal block and by timer.

Termination on the terminals for Economy, Comfort and Forced corresponds to the same operating mode as when changing on the display.

Operating mode:

  • Fire function, terminals 9 & 10 open.
  • Display operating mode Stop.
  • Stop, terminal 7 & 8 open.
  • External 2, terminal 1 & 6 closed.
  • External 1, terminal 1 & 5 closed.
  • Forced, terminals 1 & 4 closed.
  • Comfort, terminal 1 & 3 closed.
  • Spar, terminal 1 & 2 closed.
  • Display.

If the priority order, parameters 470-472, is set to “Priority”, the order as above applies if more inputs are active. If the priority order, parameter 470-472, is set to “Last input”, the last command is valid until the next command.

If parameter 470 is “Prio”, parameters 471-472 are automatically set to “Prio” as well and become hidden in the control panel.

For external control to be active, an operating mode must be activated or in Standby
To activate Standby, press Stop one more time.

The unit is overridden by the Stop operating mode except for the fire function!

See wiring diagram.

Reservation for errors or linguistic discrepancies that may have arisen during printing, translation or assisted text processing. In case of discrepancies between language versions, the original Swedish version applies. See conditions.

© 2026 Acetec AB. All rights reserved.