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Function 4
0020258017_00 ecoTEC pure Operating instructions 13
4.7.2 Filling the heating installation
Caution.
Risk of material damage due
to heating water that is ex-
tremely calciferous or corros-
ive or contaminated by chem-
icals.
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 install-
ation with suitable heating
water.
In case of doubt, ask a com-
petent person for details.
Note
The competent person is respons-
ible for filling the heating installa-
tion the first time.
Applicability: Product without filling device
On-site, connect the filling cock to a
cold water pipe, as explained by the
competent person.
Open all radiator valves (thermostatic
radiator valves) of the heating installa-
tion.
Open the cold water pipe.
Turn the filling cock on slowly and al-
low water to flow in until the required
system pressure has been reached.
Close the cold water pipe.
Purge all radiators.
Check the system pressure on the
display. ( Page 12)
Top up with more water if required.
Close the filling cock.
Disconnect the filling cock from the
cold water pipe.
Applicability: Product with filling device
1
Open all radiator valves (thermostatic
radiator valves) of the heating installa-
tion.
Slowly turn the blue valve on the
filling device (1) that is located be-
low the product and top it up with wa-
ter until the required system pressure
has been reached.
Purge all radiators.
Check the system pressure on the
display. ( Page 12)
Top up with more water if required.
Close the blue valve on the filling
device (1).
4.8 Switching the product to
standby mode
Press the button for less than three
seconds.
Once the requirement currently in
use has finished, the display will
show OFF and go out.
The product is now in standby mode.
The product's frost protection func-
tion is activated.
The main power supply is not inter-
rupted. The product continues to be
supplied with power.
13


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