11
5 Filling the heating system
Information on the water pressure:
The default view of the display shows OK. Press the eco-button for
6 seconds and press the eco-button a few times more until A6 is
displayed. The actual water pressure will be shown:
Water pressure too low
Code 118 and spanner symbol visible:
Water pressure is too low (<1.0 bar)*.
Power is reduced by 20%. The installation should be relled.
or
Code 118 and spanner symbol visible:
Water pressure is too low (<0.7 bar)*.
The boiler is taken out of operation. The installation should be relled.
After the installation has been relled and if the pressure was below
0.7 bar the de-aeration program will start (Code 105 and spanner
symbol visible). This will last for approximately 7 minutes.
Water pressure too high
Code 117 and spanner symbol visible:
Water pressure is too high (> 3.0 bar)*.
The boiler is taken out of operation.
The installation pressure should be reduced by draining water from the heating system.
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