Filling The Dhw Cylinder; Shutting Down The System - Viessmann Vitocell 100-B Service Instructions Manual

Filling the DHW cylinder

1. Fill the DHW cylinder on the DHW side.
Note
If the DHW cylinder is pressurised, tighten the
flange cover with a torque of 25 Nm.

Shutting down the system

Checking the safety valve function
Testing the anode earth current with an anode tester
DC
Fig. 3
Cleaning 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.
A
B
Commissioning, inspection, maintenance
2. Check the fittings on the heating water and DHW
sides for leaks and tighten if required.
3. Check the function of the safety valves according
to the manufacturer's instructions.
1. Remove cover and flange insulation
A
2. Disconnect earth cable
3. Connect tester in series across earth cable
tab .
D
The protective magnesium anode is OK if there
■
is a current 0.3 mA.
>
If there is a current of < 0.3 mA or no current at
■
all, inspect the protective magnesium anode vis-
ually (see page 11).
.
B
from tab .
C D
and
C
9