Cleaning The Primary Store - Viessmann FB2B Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps

Cleaning the primary store

Note
EN 806 specifies a visual inspection and (if required) cleaning every two years after
commissioning and thereafter according to requirements.
A
1. Drain the primary store.
2. Remove flange lid A.
3. Remove T&P valve B.
4. Undo eight screws C and remove
flange lid D.
46
(cont.)
B
C D
E
5. Dispose of gasket E.
6. Disconnect the primary store from the
pipework to prevent contamination
from entering the pipe system.