54
C
D
E
F
G
B
H
K
A
Fig. 51
1.
Check and if necessary adjust the pre-charge pres-
sure at test connector
A
on the diaphragm expan-
sion vessel.
Set value: 0.9 bar (0.09 MPa)
2.
Connect the drain hose to air vent valve
B
and to
the drainage system.
3.
Turn the lever of tap
C
to position
E
.
The fuel cell module is filled in this position.
4.
Fill the fuel cell module via tap
C
.
Vent via:
■
Air vent valve
G
at the front of the fuel cell mod-
ule
■
Air vent valves
K
at the top of the fuel cell mod-
ule
Note
Place a suitable container below air vent valves
G
and
K
to catch any fill water that escapes. Dry off
any moisture that may appear on the fuel cell mod-
ule.
5.
Once no more air is escaping through the air vent
valves, turn tap
C
to position
F
.
Close air vent valves
G
and
K
.
Commissioning, inspection, maintenance
Filling the fuel cell module and heating water…
(cont.)
5775 636 GB
Summary of Contents for C3TB
Page 136: ...136 Troubleshooting Repairs gas condensing module cont 5775 636 GB Diagnosis ...
Page 143: ...143 Parts lists Heat cell assembly 5775 636 GB Components ...
Page 160: ...160 Parts not shown 0009 PCB IU100 B30 Parts lists Fuel cell assembly 5775 636 GB Components ...
Page 161: ...161 Parts lists Fuel cell assembly cont 5775 636 GB Components ...
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