Viessmann Vitoladens 300-W Installation And Service Instructions Manual page 22

Commissioning, inspection, maintenance
Filling the heating system
Total permissible hardness of the fill and top-up water
Total heating output
kW
50
≤
50 to 200
> ≤
200 to 600
> ≤
600
>
Fig. 16
1. Check the pre-charge pressure of the expansion
vessel.
2. Fill the heating system via boiler drain & fill valve
in the heating return (at the connection set or
A
on site). Minimum system pressure 0.8 bar
(80 kPa).
Note
If the control unit has not been switched on prior to
filling the system, then the servomotor of the
diverter valve will still be in its central position.
Then the system will be completely filled.
3. If the control unit was already on before filling:
Switch the control unit ON and activate the filling
function (see next chapter).
Checking the power supply
Changing the language (if required)
At the commissioning stage, the display is in German
(factory setting).
Extended menu:
1.
å
2. "Einstellungen"
3. "Sprache"
4. Select the required language with
/ .
22
(cont.)
Specific system volume
< 20 l/kW
3
3.0 mol/m (16.8 °dH)
≤
2.0 mol/m 3 (11.2 °dH)
≤
1.5 mol/m 3 (8.4 °dH)
≤
3
< 0.02 mol/m (0.11 °dH)
A
20 l/kW to < 50 l/kW
≥
3
2.0 mol/m (11.2 °dH)
≤
1.5 mol/m 3 (8.4 °dH)
≤
0.02 mol/m 3 (0.11 °dH)
≤
3
< 0.02 mol/m (0.11 °dH)
4. Close boiler drain & fill valve
5. Close the shut-off valves on the heating water side.
Activating the filling function
1. Press OK and simultaneously for approx. 4 s.
å
2. "Service functions"
3. "Filling"
4. End the filling function:
Press OK or .
ä
Sprache
Deutsch
Bulgarski
Cesky
Dansk
Wählen mit
Fig. 17
50 l/kW
≥
3
< 0.02 mol/m (0.11 °dH)
< 0.02 mol/m 3 (0.11 °dH)
< 0.02 mol/m 3 (0.11 °dH)
3
< 0.02 mol/m (0.11 °dH)
.
A
DE
ê
ç
BG
ê
CZ
ê
DK
ê
(