Wolf COB-29 - Page 9

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Clean the condensate pan:
26. Use a vacuum cleaner to remove dirt from the
condensate pan or ush with water through the siphon
aperture in the collecting vessel.
27. Clean, rell and ret the siphon.
Note:
When installing an empty siphon, ue gas may escape
and start problems may occur, in which case proper
measurement of CO
2
would not be guaranteed.
28. Flush the neutralisation and condensate pump (if
installed) with water.
29. Top up neutralisation granulate.
30. Replace the neutralising system’s activated charcoal.
31. Reattach connecting lines.
32. Replace oil lter insert.
Please note that only lter cartridges with 25 - 40 μm are
permissible.
Assembly is carried out in reverse order, observing the
following instructions:
33. Use the maintenance tool to slide the cleaned
displacement device back into the heat exchanger.
Never let the displacement device drop into the heat
exchanger, as this could damage the displacement device.
NB
Assembly
34. Replace combustion chamber lid seal ring.
35. Before retting the combustion chamber lid, lubricate the
seal ring on the combustion chamber lid with silicone
grease.
Note:
If the ame tube or ame tube adaptor was also removed
while maintenance was being carried out, replace the seal
ring or gasket.
COB up to 12/2009: Gasket
COB from 01/2010: Seal ring: 87 x 2.5 mm
Seal ring,
combustion
chamber lid
4. Maintenance procedure
23. Rotate the maintenance tool 90°, hook into the lifting eye
of the displacement device and pull out.
Soak displacement device in water if stuck. After
around two minutes, the displacement device can
then be removed from the heat exchanger using the
maintenance tool. Never use force (e.g. a hammer) to
loosen the displacement device, as this may damage it.
NB
24. Remove cleaning brush from the back panel. Brush dry,
easily removable deposits into the condensate pan.
Use a vacuum cleaner to remove the loosened dirt
from the condensate pan. Alternatively, ush the dirt
with water into the collecting vessel through the siphon
aperture.
25.
Soak stubborn encrusted deposits in water for at least
2 min.
Unscrew the brush head from the handle and replace
with the cleaning hook. Then scrape off deposits with the
cleaning hook.
Swap the cleaning attachments back again and hook the
cleaning brush into the back panel.
Chemical cleaning agents can corrode the heat
exchanger and are not permissible.
NB