Operation
Operating instructions ecoTEC pro 0020129673_00 13
5
Proceed as follows to fill the heating installation:
> Open all radiator valves (thermostatic radiator valves) of
the heating installation.
> Connect the filling cock for the heating system, as
explained by your approved skilled tradesman, to a cold
water draw-off valve.
> Open the filling cock slowly.
> Fill it with water using the draw-off valve until the
required filling pressure is reached in the display.
> Close the draw-off valve.
> Bleed all the radiators.
> Then check the filling pressure on the display.
> Fill with more water if required.
> Close the filling cock.
> Remove the connection between the filling cock and the
draw-off valve.
> Return to the basic display.
5.2 Setting the heating flow temperature
5.2.1 Setting the heating flow temperature
without a controller connected
60
5.4 Setting the heating flow temperature
If no external controller is connected to the boiler, set the
heating flow temperature according to the respective out-
side temperature as follows:
> Press the right-hand selection button
(" ").
The value of the heating flow temperature appears in the
display.
> Use the minus button
or the plus button
to change the heating flow temperature.
> Confirm the change by pressing the right-hand selection
button
(“ ”).
The heating flow temperature is factory-set for tempera-
tures up to 75°C.
If higher (or lower) values can be set on your boiler, this
means that your approved skilled tradesman has calibrated
your unit to adjust the maximum temperature to your heat-
ing system.
5.2.2 Using a controller to set the heating flow
temperature
If your boiler has a weather compensator or a room ther-
mostat control system, you must make the following set-
tings:
> Set the maximum heating flow temperature on the boiler
(¬ Section 5.2.1).
The actual heating flow temperature is automatically
adjusted by the controller (for information about this, see
the controller operating instructions).
5.3 Domestic hot water generation
a
Danger!
Risk of being scalded by hot water.
There is a danger of scalding at the hot
water draw-off points if the hot water tem-
peratures are greater than 60°C. Young
children and the elderly can even be at dan-
ger at lower temperatures.
> Select the temperature so that nobody is
at risk.
a
Danger!
Possible danger to life from legionella!
If the boiler is used to reheat water in a
solar-based drinking water heating system,
note the following:
> Set the minimum hot water temperature
to 60°C.
b
Caution!
Risk of damage caused by calcification.
If the water hardness is more than
3.57
mol/m
3
(=357 mg/l), there is a risk of
calcification.
> Set the domestic hot water temperature
to a maximum of 50°C.
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