Filling the heating system
!
Please note
Unsuitable fill water increases the level of deposits and corrosion and
may lead to boiler damage.
&
Thoroughly flush the entire heating system prior to filling it with water.
&
Only use fill water of potable quality.
&
Soften fill water with a water hardness in excess of the following
values, e.g. with a small softening system for heating water (see the
Viessmann Vitoset pricelist):
Single boiler system and multi-boiler systems
≤
200 kW: 11.2 °dH
(2.0 mol/m
3
)
Multi-boiler systems > 200 kW: 8.4 °dH (1.5 mol/m
3
)
&
An antifreeze additive suitable for heating systems can be mixed with
the fill water. The antifreeze manufacturer must verify its suitability.
1.
Check the inlet pressure of the dia-
phragm expansion vessel.
2.
Close the gas shut-off valve.
3.
Fill the heating system via boiler fill
& drain valve
A
. (minimum system
pressure > 1.0 bar).
4.
Close boiler fill & drain valve
A
.
Further details regarding the individual steps
(cont.)
8
Commissioning, inspection, maintenance
5692
761
GB
Содержание Vitodens 200-W WB2B Series
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