Filling The Trap With Water; Filling The Heating System - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Filling the trap with water

Multi boiler system:
Fill the trap in the flue gas header with water as well.
A
B
Fig. 17
1. Remove supply hose
2. Remove trap .
B
3. Fill trap with water.
B

Filling the heating system

Fill water
According to EN 1717 with DIN 1988-100, as a heat
transfer medium for DHW heating, the heating water
must meet fluid category ≤ 3. This requirement is met if
water of potable quality is used as heating water. For
example, if additives are used, the additive manufac-
turer must specify which category the treated heating
water comes under.
Total permissible hardness of the fill and top-up water
Total heating output
kW
50
≤
50 to 200
> ≤
.
A
Specific system volume
< 20 l/kW
3.0 mol/m 3 (16.8 °dH)
≤
2.0 mol/m 3 (11.2 °dH)
≤
Commissioning, inspection, maintenance
4. Refit trap .
B
5. Reconnect supply hose
Note
Never twist the supply hose during assembly.
!
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.
■ Special antifreeze suitable for heating systems
can be added to the fill water. The antifreeze
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.
20 l/kW to < 50 l/kW
≥
2.0 mol/m 3 (11.2 °dH)
≤
1.5 mol/m 3 (8.4 °dH)
≤
.
A
50 l/kW
≥
< 0.02 mol/m 3 (0.11 °dH)
< 0.02 mol/m 3 (0.11 °dH)
27