Guaranteeing The Correct Filling Pressure Of The Heating System - Vaillant ecoFIT pure 612 Operating Instructions Manual

4 Operation
3. Confirm by pressing
◁
Heating mode is switched off.
◁
The symbol appears in the
display.
4.11 Guaranteeing the correct
filling pressure of the heating
system
4.11.1 Checking the filling pressure
of the heating installation
Note
To ensure that the heating installa-
tion operates smoothly, the filling
pressure when the heating install-
ation 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 compet-
ent person for details.
In addition, the
after approx. 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 pressure.
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.
1 / 2
System pressure: 0.10 ... 0.20 MPa
(1.00 ... 2.00 bar)
12
.
symbol appears
Operating instructions ecoFIT pure 0020230534_02
The filling pressure is in the intended
pressure range.
2 / 2
Filling pressure: < 0.08 MPa
(< 0.80 bar)
▶
Fill the heating installation.
(→ Page 12)
◁
If you have topped up the install-
ation with sufficient heating wa-
ter, the display automatically dis-
appears after 20 seconds.
4.11.2 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.
1. Ask a competent person where the
filling cock is located.
2. Connect the filling tap to a heating wa-
ter supply in the way you were told by
the competent person.
3. Open all radiator valves (thermostatic
radiator valves) of the heating installa-
tion.
4. Open the heating water supply.
5. Turn the filling cock on slowly and al-
low water to flow in until the required
filling pressure has been reached.
6. Close the heating water supply.
7. Purge all radiators.