10.3.8 Cleaning the heat exchanger
1. Remove the insulation set from the heat exchanger (locally).
2. Unscrew the nuts from the inspection hatch on the heat exchanger.
3. Take the inspection trap off the heat exchanger and remove the
insulation cloth.
The insulation cloth may stick to the heat exchanger. Avoid
damaging or tearing the insulation cloth. Remove the silicon
insulation cord.
4. Inspect the insulation cloth and replace if it is faulty or seriously
damaged.
5. Clean the areas between the pins of the heat exchanger using the
special cleaning tool or cleaning knife (accessory). Always work from
the bottom to the top. Move the cleaning knife between the pins
horizontally and diagonally.
Important
A range of cleaning knives are available for the various boilers.
Always use the cleaning knife specially designed for this boiler.
This knife is 560 mm long.
6. Use compressed air to blow the cleaned parts through in turn. Do this
from the service side and from the burner area.
7. Fit the inspection trap with the silicon cord and the insulation cloth.
8. Use clean water to thoroughly rinse the heat exchanger from the
burner area.
10.3.9 Clean the condensate collector
Fig.80
Clean the heat exchanger
10 Maintenance
70 7600532 - v.11 - 13122018
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