Cleaning And Descaling The Inside Of The Dhw Cylinder - Viessmann VITOCELL 100-B Service Instructions Manual

Cleaning and descaling the inside of the DHW cylinder

Danger
Unchecked leakage of DHW or heating water
can result in scalding and structural damage.
Only open the DHW and heating water connec-
tions after the DHW cylinder has been depres-
surised.
1x
Fig. 2
7x
Commissioning, inspection, maintenance
1. Drain the DHW cylinder on the DHW side.
!
Please note
Material losses may result from draining with
a vacuum pump when the air vent valve is
closed.
Open the air vent valve during draining.
2. Remove cover , flange insulation
A
cover . Dispose of gasket
C
and flange
B
.
D
9