4 Operation
10
Operating instructions ENERGY ..s 0020200965_02
3.7 Operating levels
The product has two operating levels:
The end user level contains information
and setting options that you require as the
end user
The installer level is reserved for the com-
petent person. It is protected by a code.
Only competent persons may change any
settings in the installer level.
Adjustable values
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overview (
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Page 14)
4 Operation
4.1 Starting up the product
4.1.1 Opening the isolator devices
1. Ask the competent person who in-
stalled the product to explain to you
where these isolator devices are loc-
ated and how to handle them.
2. Open the gas isolator cock fully.
3. Check that the heating installation flow
and return service valves are open, if
such service valves are installed.
4. Open the cold water stop valve. To
check, you can turn on a hot water
valve and see whether water is escap-
ing there.
4.1.2 Switching on the product
▶
Switch on the product via the main
switch installed on-site.
4.2 Basic display
The filling pressure in the heating installa-
tion and the operating mode are shown in
the display's basic display.
To return to the basic display:
–
Wait more than five seconds without
pressing any buttons.
If a fault message is present, the basic
display switches to the fault code.
4.3 Checking the heating system
pressure
1. Once a month, check that the pressure
in the central heating system, which
is displayed on the user interface, is
between 0.05 MPa and 0.27 MPa
(0.5 bar and 2.7 bar).
◁
If the filling pressure is correct, no
action needs to be taken.
▽
If the filling pressure is too low, add
more water to the heating installa-
tion.
Note
If the heating flow temperature
is shown in the display, press
and hold the
and
buttons
at the same time for longer than
five seconds, or temporarily
deactivate heating mode in
order to display the pressure.
2. Fill the heating installation.
