58
A
D
B C
Fig. 54
1.
Close the shut-off valves on the heating water side.
2.
Remove cover panel
A
.
3.
Push drain hose
B
onto air vent valve
C
and
connect to a drain.
4.
Open air vent valve tap
C
and fill valve
D
on the
heating return and vent (flush) under mains pres-
sure until air noise can no longer be heard.
5.
First close vent valve
C
.
6.
Once the required operating pressure has built up,
close fill valve
D
. Open the shut-off valves on the
heating water side.
7.
Remove drain hose
B
from fill valve
C
and keep
safe.
Gas condensing module only: Switching on mains power and control unit
A
Fig. 55
1.
Ensure that ON/OFF switch
A
on the
fuel cell
module
is switched off (0).
2.
Close the gas shut-off valve.
3.
If the
gas condensing module
was not already
switched on for filling, switch on mains power and
control unit.
Commissioning, inspection, maintenance
Venting the gas condensing module
5775 636 GB
Содержание C3TB
Страница 44: ...44 3 5 1 2x 2 4 7 6 Fig 43 Installation sequence Fitting the front panels 5775 636 GB Installation ...
Страница 48: ...48 14 Fig 47 Installation sequence If required for easier handling Dismantling cont 5775 636 GB Installation ...
Страница 136: ...136 Troubleshooting Repairs gas condensing module cont 5775 636 GB Diagnosis ...
Страница 143: ...143 Parts lists Heat cell assembly 5775 636 GB Components ...
Страница 148: ...148 0001 0001 0003 0003 0002 0002 0004 Fig 118 Parts lists External connection assembly 5775 636 GB Components ...
Страница 154: ...154 0006 0003 0005 0001 0002 0004 Fig 121 Parts lists Miscellaneous assembly 5775 636 GB Components ...
Страница 160: ...160 Parts not shown 0009 PCB IU100 B30 Parts lists Fuel cell assembly 5775 636 GB Components ...
Страница 161: ...161 Parts lists Fuel cell assembly cont 5775 636 GB Components ...
Страница 187: ...187 5775 636 GB ...