Viessmann 7513244, Инструкция по установке и обслуживанию

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38
See page 21.
Checking the power supply
Filling the heating system
Fill water
!
Please note
Unsuitable fill water increases the level of
deposits and corrosion and may lead to appli-
ance damage.
■
Flush the heating system thoroughly before
filling.
■
Only use fill water of potable water quality.
■
Antifreeze suitable for heating systems can be
added to the fill water. The antifreeze manu-
facturer must verify its suitability.
■
Fill and top-up water with a water hardness in
excess of the following values must be soft-
ened, e.g. with a small softening system for
heating water.
Total permissible hardness of the fill and top-up water
Total heating output
Specific system volume
kW < 20 l/kW
≥
20 l/kW to < 50 l/kW
≥
50 l/kW
≤
50
≤
3.0 mol/m 3 (16.8 °dH)
≤
2.0 mol/m 3 (11.2 °dH) < 0.02 mol/m 3 (0.11 °dH)
>
50 to
≤
200
≤
2.0 mol/m 3 (11.2 °dH)
≤
1.5 mol/m 3 (8.4 °dH) < 0.02 mol/m 3 (0.11 °dH)
>
200 to
≤
600
≤
1.5 mol/m
3
(8.4 °dH)
≤
0.02 mol/m
3
(0.11 °dH) < 0.02 mol/m
3
(0.11 °dH)
>
600
< 0.02 mol/m
3
(0.11 °dH) < 0.02 mol/m
3
(0.11 °dH) < 0.02 mol/m
3
(0.11 °dH)
A
B
Fig. 28 Shown with connection set for finished walls
(accessories)
1. Check the pre-charge pressure of the diaphragm
expansion vessel. See page 56.
2. Close the gas shut-off valve.
3. Open shut-off valves
B
on the heating water side.
Commissioning, inspection, maintenance
Removing the front panels
5773 238 GB