GB.COMPACTUT.170622
Registered design. The company reserves the right to make design changes without prior notice.
www.swegon.com 47
FABRIC SEAL
Lift up the fabric seal and inspect its underside. Clean if needed
by brushing or vacuum cleaning.
If the fabric seal is worn or substantially fouled, it should be
replaced. Do not lubricate it!
BELT TENSION
Replace the drive belt if it feels loose or worn and slightly slips if
it meets resistance. Contact service personnel trained by Swe-
gon!
17.2.4 Fans and Fan Space
Inspect and clean the fan impellers to remove possible dirt depo-
sits.
Check the impeller to make sure that it is not out of balance.
Clean or brush off the fan motor. It can also be cleaned by
carefully wiping it with a damp cloth that has been dipped in a
solution of water and dishwashing detergent.
Clean the fan space, if needed.
17.3 Performance Checks
General performance checks should be carried out in conjunc-
tion with filter change or at least once a year.
It is then appropriate to compare the current performance values
of the unit with the Commissioning Record. Eventual deviations
should be remedied.
17 MAINTENANCE
Warning
Before carrying out any work, make sure that the
power supply to the unit has been isolated.
17.1 Filter Change
The filters should be changed when the filter alarm has been
activated.
Order new filters from Swegon or its representative!
State the size of the air handling unit and whether the
change involves one or two air directions.
17.1.1 To remove the Filters
Pull out the handles to free the filters from the filter holder.
Withdraw the filters.
It is advisable to clean inside the filter space while the filters are
gone.
17.1.2 To fit new filters
Insert the filters into the filter holder.
Insert the filters as far as possible into the unit and press lightly
on the filter frames, so that they will fit tightly.
Push in the handles so that the filters are clamped in place in the
filter holder.
Carry out a filter calibration as described in Section 7.4.2.
17.2 Cleaning and Inspection
17.2.1 General
Clean the interior of the air handling unit as the need arises.
Inspect the air handling unit thoroughly at the same time that
you replace the filters or at least twice a year.
17.2.2 Filter Space
Cleaning is most appropriate when you change the filters.
17.2.3 Heat exchangers
Check at least twice a year whether cleaning is necessary.
The cleaning work is carried out from the filter space.
The heat exchanger should preferably be cleaned by vacuum
cleaning with a soft nozzle to prevent damaging the air passages
in the rotor.
Turn the rotor by hand to enable you to vacuum clean its entire
surface.
If the heat exchanger is substantially fouled, it can be blown
clean with compressed air.
If necessary, the heat exchanger can be withdrawn from the unit
casing and washed with degreasing solvent. Only service person-
nel trained by Swegon shall be permitted to use this cleaning
method.
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