Temperature Setting; Usage And Maintenance - Wahl Bach 30 SQUARE Instructions De Montage Et D'utilisation

To fill the appliance: Open one of the hot water draw-off
points connected to the wall boiler. Then open the tap in
the inlet combination. When the water starts to flow out of
the draw-off point the wall boiler has been filled. The device
only switches on again if the temperature falls below this
setting. (See troubleshooting)
When filling for the first time, the hot water valve in the low-pressure tap fitting must
be open so that water can flow into the device. If the device is not filled with water be-
forehand during installation, the automatic safety device will activate and switch off the
device. (See troubleshooting instructions on how to act in the event of a fault.)

Temperature setting

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4
A B
•
Press the on/off button (A) to switch the boiler on.
•
The set temperature is now displayed flashing for 2 seconds (2).
•
Press the '-' button (B) to lower the set temperature. Press the '+' button (C) to
increase the set temperature. The chosen temperature is displayed for 3 seconds (2).
Then the temperature of the water in the tank is displayed (2). The temperature can
only be set when the boiler is switched on.
•
To save the set temperature (also if the boiler is switched on/off), press 'Set' (D)
after setting the required temperature.
•
The 'Heating' light (1) only comes on when the boiler is heating up.
•
The 'Eco' (4) light stays on for as long as the boiler is set to a temperature of a maxi-
mum of 55 °C, the ECO-position. This light will not come on if the temperature is set
higher.
•
Press the 'Power' (E) button to set the boiler power. If the boiler is switched to the
'1STEP' or '2STEP' position it takes longer for the water to reach the set temperature.
1STEP: 800 W

Usage and maintenance

Please refer to the previous section for details of the thermostat settings. We recom-
mend you use the ECO-position as this guarantees maximum energy efficiency and the
lowest lime scale building. By maintaining the water temperature at approximately 55°C;
furthermore lime scale build-up and heat loss are much lower than at higher tempera-
tures.
During heating, the volume of the water in the device expands, causing a flow of water
(„expansion water") from the safety unit. This is perfectly normal and no preventive ac-
tion needs to be taken.
2 3
set power
C D E
2STEP: 1200 W
DE GB NL FR
3STEP: 2000 W (default)
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