Filter; Heating Coil; Fresh Air Damper - Dantherm DanX AF Series User Manual

5. MAINTENANCE

5.5 Filter

Every 6 month the filters should be checked on damage/leakages and dirt. The following
steps should be taken:
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5.6 Heating coil

The following steps should be taken to maintain the heating coil of the unit:
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5.7 Fresh air damper

The following steps should be taken to maintain the fresh air damper of the unit.
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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.
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.
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).
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