IS339 ECN3539
7
OPERATION
First use
1 Switch on the mains water supply and the electricity supply
2 Leave the boiler for 30 minutes to allow it to fill completely
3 Drain off approximately 5 litres of water to remove any loose carbon
particles from the filter.
Regular operation
The boiler starts automatically when the mains water supply is turned on. After
a short delay it fills with water and heats up. During the heating cycle small
quantities of water are added to ensure that hot water is always available at
the tap.
The water temperature, screen backlight and screen contrast can be adjusted
as required.
The boiler is designed to be left permanently switched on: it is only necessary
to turn it off for descaling or maintenance.
Changing water temperature, screen backlight and contrast.
1 Turn power off and on again. The Filter Flow screen is displayed
2 Press and hold the power button until the software version is displayed.
Press Fn and the temperature will be displayed
3 Press the power button to cycle through the values 70 to 96 deg C.
Press the Fn button to select the required value
4 The backlight adjustment screen is displayed next
5 Press the power button to cycle through the values 1 to 25. Press the Fn
button to select the required value
6 The contrast adjustment screen is displayed next
Power /
Standby button
Fn (Function)
button
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