79
Note
Discolouration on the heat exchanger surface is a nor-
mal sign of use. It has no bearing on the function and
service life of the heat exchanger.
The use of chemical cleaning agents is not required.
A
Fig. 74
1.
Use a vacuum cleaner to remove combustion resi-
dues from heating surface
A
of the heat
exchanger.
2.
Flush heating surface
A
with water.
3.
Check condensate drain and clean trap. See the
following chapter.
4.
Flush the heating surface again with water. This
will also fill the trap with water.
Checking condensate drain and cleaning the trap (gas condensing module)
B
C
A
Fig. 75
1.
Check at the trap that the condensate can drain
freely.
2.
Pull off drain hose
A
.
3.
Pull off retaining clip
B
.
4.
Remove trap bottle
C
downwards.
5.
Clean the trap.
Commissioning, inspection, maintenance
Cleaning heating surfaces (gas condensing…
(cont.)
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 ...