Viessmann Vitovalor 300-P Installation And Service Instructions For Contractors page 71

Commissioning the fuel cell module
2. Press SET. Commissioning mode 1 is activated.
Under ITEM, a dot will flash while commissioning
mode 1 is active.
11. 01
ITEM STATE
It will not be possible to carry out commissioning
mode if "n1", "n2" or "n3" is flashing under STATE.
For the meaning of fault messages and to correct
faults, see page 70.
3. Fill with the distilled water supplied.
While indicators "01" to "04" are flashing, continue
to fill with distilled water until they switch to con-
stant. The switch from flashing to constant display
will be repeated several times.
The whole process takes about 40 min.
Phase
01
02
03
04
When phase 04 shows constant, add another 0.5 l
of distilled water so that the integral trap is filled.
!
Please note
Escaping flue gas can damage your health.
Ensure that the integral trap is filled with
water.
Note
A fault has occurred during the commissioning
process if the display shows alternately "End" and
"nP".
Turn the ON/OFF switch on the fuel cell module
OFF and then ON again. Then restart commission-
ing mode 1.
Filling with distilled water (commissioning mode 3)
1. Select "13" using / .
Duration
min. approx.
4
15
20
0.5
Commissioning, inspection, maintenance
(cont.)
4. When "05" is displayed under STATE, the filling
process has finished and the start phase will com-
mence.
The starting procedure then continues automati-
cally:
Phase Duration
min. ap-
prox.
05 15
06 to 09 60
10 < 0.5
11 < 0.5
12
–
5. Remove the funnel from the filler neck and secure
it to the front panel with the screw (see page 69).
6. Replace the cover on the distilled water filler neck
and secure it with the screw (see page 69).
Function
Venting
Process start
Process start com-
pleted
Preparation for pow-
er generation
Power generation
(indicators GEN and
GRD illuminate)
71