5. MAINTENANCE
21
5.5 Filter
Every 6 month the filters should be checked on damage/leakages and dirt. The following
steps should be taken:
•
Check the filter for dirt and damage.
•
Measure the pressure loose over the filter which should not be higher than 150 Pa
(G3/G4) or 250 Pa (F5/F7). If the pressure loose is higher the filters have to be
changed.
•
Open the filter rail with the help of the blue handles.
•
Take out the filters and check the gasket on the filter rail for damage.
•
Clean the filter rail and reinstall the old/new filters.
5.6 Heating coil
The following steps should be taken to maintain the heating coil of the unit:
•
Check the coils for dust or dirt. If necessary, clean the aluminium fins by a soft brush
or a vacuum cleaner.
•
Straighten any bent slats using appropriate tools
•
Air the coil circuits through the exhaust valves of the pipe system (air in the pipe
system may reduce the capacity)
•
Check that the frost sensor is properly fixed.
5.7 Fresh air damper
The following steps should be taken to maintain the fresh air damper of the unit.
•
Check that the damper louvers can rotate when the damper motor is running and that
they close/open completely (every 6 month).
•
Check the fixing of the motor/damper shaft (every 12 month).
•
Clean the damper louvers if necessary either dry or wet (every 12 month).
•
Check the rubber gaskets on damage (every 12 month).
Summary of Contents for DanX AF 12/24
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