Further Details Regarding The Individual Steps; Filling The Heating System - Viessmann Vitodens 100 Series Installation And Service Instructions Manual

Further details regarding the individual steps

Filling the heating system

Fill water
!
Please note
Unsuitable fill water increases
the level of deposits and corro-
sion and may lead to boiler
damage.
■ Flush the heating system thor-
oughly before filling.
■ Only use water of potable
water quality. The total con-
centration of calcium Ca
magnesium Mg
water must not exceed
450 mg/l.
■ In areas with water hardness
> 450 mg/l a water softening
system must be installed.
■ Small softening systems for
heating water are available
from Viessmann.
Commissioning, inspection, maintenance
and
2+
in the fill
2+
01. Check the pre-charge pressure of
02. Close the gas shut-off valve.
■ The pH value of the fill water
should be between
6.5 and 8.5.
■ Special antifreeze suitable for
heating systems can be
added to the fill water. The
antifreeze manufacturer must
verify its suitability.
■ When using a means of water
treatment, always use prod-
ucts from the following manu-
facturers:
– Fernox (www.fernox.com)
– Scalemaster (www. scale-
master.co.uk)
– Calmag (www.calm-
agltd.com)
– Sentinel (www.sentinel-solu-
tions.net)
the diaphragm expansion vessel
(see page 52).
35