Opening The Boiler; Filling The Heating System - Viessmann Vitodens 200-W Series Installation And Service Instructions Manual

Commissioning, inspection, maintenance

Opening the boiler

2.
Fig. 16

Filling the heating system

Fill water
!
Please note
Unsuitable fill water increases the level of
deposits and corrosion and may lead to boiler
damage.
Flush the heating system thoroughly before
■
filling.
Only use fill water of potable quality.
■
An antifreeze additive suitable for heating sys-
■
tems can be added to the fill water. The anti-
freeze manufacturer 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.
22
3.
4.
1.
2x