Cleaning The Inside Of The Dhw Cylinder - Viessmann Vitocell 300-B Service Instructions For Contractors

Commissioning, inspection, maintenance

Cleaning the inside of the DHW cylinder

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