Viessmann Vitocell 100-W Installation And Service Instructions For Contractors page 14

Commissioning, inspection, maintenance
Filling the DHW cylinder
1. Fill the DHW cylinder on the DHW side.
Note
When the DHW cylinder is pressurised, tighten the
screws in the flange cover.
Max. torque: 25 Nm
Shutting down the system
Checking the safety valve function
Checking the anode earth current with an anode tester
A
B
C
Fig. 6
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.
14
2. Check the fittings on the heating water and DHW
3. Check the function of the safety valves according
1. Push down oval cover
2. Remove flange insulation
3. Remove thermometer sensor
4. Remove earth cable
5. Connect tester in series between earth cable
E D
sides for leaks and tighten if required.
to the manufacturer's instructions.
A
from tab
D
and tab .
E
Current 0.3 mA: Protective magnesium anode
■ >
is OK.
Current < 0.3 mA or no current at all: Inspect the
■
protective magnesium anode visually (see
page 15).
and remove it.
.
B
(if available).
C
.
E
D