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MAINTENANCE
6.5
Servicing the neutralisation installation
for types 23 and 24 (if fitted)
Maintenance should be undertaken at least
every second year, or after the neutralisation
granules are exhausted (check the ph-value if
appropriate with litmus paper test).
Neutralisation granulate for refi lling can be ordered from
Hoval under the following item no.:
• 1 pack (3 kg) neutralisation granules
Part no. 2028 906
One fi lling requires 4 packs of 3 kg each.
Procedure for servicing the neutralisation installation
WARNING
The heat generator must be de-energised for
maintenance. Set the blocking switch to «0»
and disconnect the heat generator from the
mains (e.g. main switch, fuse).
• Undo the bolts and withdraw the neutralisation box.
• Only for neutralisation box of type KB24
Remove the condensate pump and clean the conden-
sate pump container.
• Remove the neutralisation granules and any deposits
from the neutralisation box. Any remaining neutralisa-
tion granulate, since it is harmless, can be disposed of
as domestic waste.
•
Refi ll the neutralisation box with new granules.
Attach the neutralisation box cover making
sure that it is tight-closing.
• Push the neutralisation box back in.
!
WARNING
Before putting back into service, the siphon
and the neutralisation box must be fi lled to-
gether with water.
The water can be poured through the clea-
ning aperture into the neutralisation box and
the siphon.
Neutralisation box
Type KB23
Neutralisation granulest
Neutralisation box with feed pump
Type KB24
Condensate pump container
Neutralisation granules
Summary of Contents for 42-UltraOil 110
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