10 • UK 3001736-EFC21-EFC25-UK
3.1 Service mode
!In service mode the PDS and Air inlet safety function are disabled.
• Open control panel.
• Press ON/OFF button (Fig. 1-C).
• If the re has to be lit during the commissioning then wait until GREEN LED is on, but not ashing.
• Press the service mode button (Fig. 1-I) on the back of the cover. Alarm LED (Fig. 1-A) will ash
RED, and the operating LED (Fig. 1-B) will ash according to the position of the pressure switch –
see the table below:
RED Insucient chimney draught (C-NC)
GREEN Sucient chimney draught (C-NO)
YELLOW No signal from pressure switch. Check the wiring
NB
The service mode will deactivate automatically after 30 minutes or the next time
the ON/OFF button is pressed.
3.2 Setting the potentiometer
• The potentiometer (Fig. 1-K) is set to maximum by turning clockwise.
• Slowly adjust the fan speed using the potentiometer. Check there are no spillages by
thoroughly checking the edge of the replace.
• If there is some leakage, increase the fan speed until leakage from the replace is no longer
detectable.
• If Step 2 is connected to the EFC25, then it can be controlled by the remote (Fig. 2-C).
3.3 Setting the pressure switch
The pressure switch is normally tted in the chimney fan.
• Set the pressure switch to a minimum by turning anti-clockwise.
• Slowly increase the pressure switch setting until it cuts out (you will hear a click) or until the
operating LED (Fig. 1-B) changes from GREEN to RED.
• Make a note of the pressure switch setting at cut-o.
• Set the pressure switch to 10 Pa below the previously noted cut-o value.
• Press ON/OFF button (Fig. 1-C). Service mode is now deactivated.
3.4 Testing the commissioning set-up
• Check the start-up function after the commissioning by pressing the ON/OFF button.
• Start replace.
• Check there is no leakage (all doors and windows must be closed) If some other type of ventila-
tion is installed, it must be on and running at full speed.
• If a leak is detected, repeat the commissioning.
• After running for ten minutes with no leakage, turn the isolation switch o and the fail-safe
function is being checked. The replace should cut-out after 15 seconds after the pressure
switch has cut-o. Remember to switch the isolation switch back on.
• Fit the cover.
• Inform the end user about the controller functions and leave the instructions with the end user.
