Operation 4
0020214277_01 atmoTEC exclusive, atmoTEC plus Operating instructions
9
4.5
Switching off the product
E
bar
1
1.
Use the main switch
(1)
to switch off the product.
–
In order for the protection modes, such as frost pro-
tection, to remain activated, only activate and de-
activate the product using the control (you can find
information about this in the relevant operating in-
structions).
◁
0
: "OFF"
2.
If no control is present, turn the adjuster anti-clockwise
as far as it will go to switch off the heating and domestic
hot water mode.
4.6
Checking the system pressure
E
bar
1
1
−
button
▶
Check the heating installation's filling pressure at regular
intervals. Briefly press the
−
(1)
button.
◁
The display will show the filling pressure for approx-
imately 5 seconds.
◁
The filling pressure must lie between 1.0 and 2.0 bar
when the heating installation is cold in order for the
heating installation to operate properly. If the pres-
sure is lower, you must add heating water before
starting up.
Note
You can permanently switch between the tem-
perature or pressure display in the display by
pressing and holding the
–
button for approx-
imately five seconds.
Note
To avoid operating the heating installation with
an insufficient water volume and to prevent
potential subsequent damage, the product is
fitted with a pressure sensor. The pressure
sensor signals the low pressure level if the
level falls below 0.6 bar. This is signalled by
the system pressure value in the display flash-
ing. If the level falls below 0.03 MPa (0.3 bar),
the system displays the fault message and
F.22
alternately, and the burner is blocked. If
the system pressure is lower than 0.06 MPa
(0.6 bar), fill the heating installation up again
as quickly as possible. As soon as the sys-
tem pressure rises above 0.6 bar, the product
starts up again without any further measures
being required.
Note
If the heating installation extends over several
floors, a higher system pressure for the heat-
ing installation may be necessary. Ask your
competent person for details.
4.7
Filling the heating installation
Caution.
Risk of material damage due to heating
water that is extremely calciferous or cor-
rosive or contaminated by chemicals.
Unsuitable tap water damages the seals
and diaphragms, blocks components in the
product and heating installation through
which the water flows and causes noise.
▶
Only fill the heating installation with suit-
able heating water.
▶
In case of doubt, ask a competent person
for details.
Note
The competent person is responsible for filling the
heating installation the first time.
1.
Connect the filling tap to a cold water pipe, as explained
by the competent person.
2.
Open all radiator valves (thermostatic valves) of the
heating installation.
3.
Open the cold water pipe.
4.
Turn the filling tap on slowly and allow water to flow in
until the required system pressure has been reached.
5.
Close the cold water pipe.
6.
Purge all radiators.
7.
Check the filling pressure of the heating installation.
(
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Page 9)
8.
Top up with more water if required.
9.
Close the filling tap.
10. Disconnect the filling tap from the cold water pipe.
