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Setting the potentiometer
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The potentiometer (Fig. 1-K) is set to maximum by turning clockwise.
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Slowly adjust the fan speed using the potentiometer. Check there are no spillages by thoroughly
checking the edge of the fireplace.
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If there is some leakage, increase the fan speed until leakage from the fireplace is no longer detectable.
Setting the pressure switch
The pressure switch is normally fitted in the chimney fan.
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Set the pressure switch to a minimum by turning anti-clockwise.
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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.
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Make a note of the pressure switch setting at cut-off.
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Set the pressure switch to 10 Pa below the previously noted cut-off value.
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Press ON/OFF button (Fig. 1-C). Service mode is now deactivated.
Testing the commissioning set-up
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Prior to the test, the required speed of the fan must be determined and adjusted according to fireplace
manufacturer instruction.
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Check the start-up function after the commissioning by pressing the ON/OFF button.
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Start fireplace.
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Check there is no leakage (all doors and windows must be closed) If some other type of ventilation is
installed, it must be on and running at full speed.
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If a leak is detected, repeat the commissioning.
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After running for ten minutes with no leakage, turn the isolation switch off and the fail-safe function
is being checked. The fireplace should cut-out after 15 seconds after the pressure switch has cut-off.
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.
Summary of Contents for EFC21
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