Cleaning The Inside Of The Dhw Cylinder - Viessmann VITOCELL 300-B Service Instructions Manual

Commissioning, inspection, maintenance

Cleaning the inside of the DHW cylinder

A
C
D
H
E
C
B
Fig. 1
8
F
G
H
1. Drain the DHW cylinder from the DHW side.
2. Remove top panel , cover
A
mats and thermometer sensor
C
3. Remove flange cover
E
with stainless steel circular blank
F
kets .
H
4. Disconnect the DHW cylinder from the pipe system
to prevent cleaning agent and contamination from
entering the pipework.
5. Remove loose deposits with a high pressure
cleaner.
!
Please note
Pointed or sharp cleaning equipment will
damage the cylinder interior.
Only use plastic tools to clean the inside.
6. Use a chemical cleaning agent to remove hard
deposits that cannot be removed with a high pres-
sure cleaner.
!
Please note
Cleaning agents containing hydrochloric acid
attack the material of the DHW cylinder.
Never use such cleaning agents.
Danger
Cleaning agent residues can result in poi-
soning.
Always observe the information provided by
the cleaning agent manufacturer.
7. Fully drain any cleaning agent.
8. Flush the DHW cylinder thoroughly after cleaning.
, thermal insulation
B
.
D
and cylinder locking cap
and gas-
G