Table of Contents
Advertisement
4.12
Guaranteeing the correct filling pressure of
the heating installation
4.12.1 Checking the filling pressure of the heating
installation
Note
To ensure that the heating installation operates
smoothly, the filling pressure when the heating
installation is cold must be between 0.10 MPa and
0.20 MPa (1.0 bar and 2.0 bar) or lie between the
two dashed lines in the bar graph display.
If the heating installation extends over several
storeys, a higher filling pressure may be required
for the heating installation. Ask a competent per-
son for details.
In addition, the
one minute.
If the filling pressure in the heating installation
falls below 0.05 MPa (0.5 bar), then the product
switches off. The display alternates between the
fault message F.22 and the current filling pres-
sure.
1.
Press
twice.
◁
The values for the current filling pressure and for the
minimum and maximum filling pressures appear in
the display.
2.
Check the filling pressure in the display.
Result 1:
System pressure: 0.10 to 0.20 MPa (1.00 to 2.00 bar)
The filling pressure is in the intended pressure range.
Result 2:
Filling pressure: < 0.08 MPa (< 0.80 bar)
▶
Fill the heating installation. (→ Page 9)
◁
If you have topped up the installation with suf-
ficient heating water, the display automatically
disappears after 20 seconds.
4.12.2 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.
1.
Ask a competent person where the filling cock is loc-
ated.
2.
Connect the filling tap to a heating water supply in the
way you were told by the competent person.
3.
Open all radiator valves (thermostatic radiator valves) of
the heating installation.
4.
Open the heating water supply.
5.
Turn the filling cock on slowly and allow water to flow in
until the required filling pressure has been reached.
6.
Close the heating water supply.
0020209590_03 ecoTEC pro Operating instructions
symbol appears after approx.
7.
Purge all radiators.
8.
Check the filling pressure in the display.
9.
Top up with more water if necessary.
10. Close the filling cock.
11. Return to the basic display. (→ Page 7)
4.13
Protecting the heating installation against
frost
4.13.1 Frost protection function
Caution.
Risk of material damage due to frost.
The frost protection function cannot guaran-
tee flow through the entire heating installa-
tion, which means that parts of the heating in-
stallation may freeze and therefore become
damaged.
▶
During a period of frost, ensure that the
heating installation remains in operation
and that all rooms are sufficiently heated,
even when you are away.
Note
To keep the frost protection devices active, you
should switch your product on and off using the
control, if one is installed.
If the heating flow temperature falls below 5 °C when the
on/off button is on, the product starts up and heats the cir-
culating water to approx. 30 °C on both the heating side and
the domestic hot water side (if available).
4.13.2 Draining the heating installation
When the unit is switched off for an extended period, frost
protection can be guaranteed by completely draining the
heating installation and the product.
▶
Consult a competent person about this.
5
Troubleshooting
5.1
Detecting and rectifying faults
▶
If faults occur, proceed in accordance with the table in
the appendix.
Troubleshooting (→ Page 12)
▶
If the fault cannot be eliminated using the specified
measures or if fault messages (F.xx) occur, contact a
competent person.
9
Hide quick links:
Advertisement
Table of Contents
