Viessmann VITOROND 200 Service Instructions Manual page 15

Further details regarding the individual steps
Enter the volume of top-up water and the
total hardness of the feed and boiler
water into the table.
Meter Fill and
reading top-up
water
3 3
m m
The total hardness of the feed and top-
up water must not exceed a sum of all
alkaline earths ≤ 0.02 mol/m
The pH value should be between 8.2 and 9.5.
Total Total hardness
water
volume Feed-
water
3
m
3
.
Commissioning, inspection, maintenance
pH val-
ue
Boiler
water
(cont.)
Water treat- Date
ment
Me- Meter-
dium ing vol-
ume
15