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Section 5. MAINTENANCE
TOOLS REQUIRED:-
7mm A/F nut spanner
Pozidrive 2pt Screwdriver
FILTER
Filters are of the 'Replaceable Cartridge Type' with cardboard frame. The filters
are located behind the main access panels (4 screws) and retained with a metal
channel (2 Screws).
A vacuum cleaner or gentle beating may be used to clean the filter. Badly
impregnated filters should be replaced.
The period between cleaning is dependent on operating conditions. In a very
dirty atmosphere the filter will require frequent cleaning (maybe every few weeks)
whereas in a clean environment it may only be necessary every few months.
ACCESS PANEL
To remove the main access panel it is first necessary to remove the re-circulation
grille. The grille and its frame are held in place by 2 off M5 hexagonal headed
screws. Once the grille is removed the main access panel retaining screws, also
2 off M5 hexagonal headed screws are exposed allowing the access panel to be
removed.(Refer to figure 4).
END PANELS
Each plastic end panel is located along its rear edge by a vertical channel and
then secured by five M5 hexagonal head screws. Three screws at the front and
two at the top rear. (refer to figure 4).
FANS & MOTORS
Providing the filter is regularly cleaned the fans and motors will require no
attention. They can be accessed however by removing the re-circulation grille
access panel and the main access panel. Clean using a soft brush and vacuum
cleaner.
HEATING COIL
Providing the filter is regularly cleaned the heating coil will require little or no
attention.
However if the filter is allowed to get very dirty some dust will percolate through
and become entrained in the coil. In this case it can be cleaned by removing
the front access panel, the discharge grille, the discharge access panel and the
coil access panel and applying a jet of air to the air leaving face.
DAMPER AND ACTUATOR
The damper requires no maintenance, other than to brush clean occasionally.
Located on the left hand side of the unit the damper actuator requires no
maintenance and should not be removed from its mounting panel.
CASING
The interior of the unit should be cleaned occasionally with a soft brush and a
vacuum cleaner.
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