Viessmann B2UA, Installation And Service Instructions Manual, Page: 67 / 200

67
Cleaning the primary store
Note
According to EN 806, a visual inspection
and (if necessary) cleaning must be car-
ried out no later than two years after
commissioning and thereafter as
required.
2.
1. Drain the primary store.
2. Remove flange cover A .
3. Disconnect the primary store from the
pipework to prevent contamination
from entering the pipe system.
4. Remove loose deposits with a high
pressure cleaner.
!
Please note
When cleaning the inside,
only use plastic cleaning uten-
sils.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5773 238 GB
Service