Carrier 50EN 415 Installation, Operation And Maintenance Instructions page 32

14 - MAINTENANCE
Air fi lters
● Depending on the installation conditions, the fi lter aspect must
be examined to defi ne the cleaning or replacing periodicity.
Spare parts should be planned for.
The pressure drop data are given on the technical catalogue.
Cleaning the fi lters is very important to maintain the required
available pressure of the unit.
On units with a clogged fi lter diff erential pressure switch, an
alarm is triggered on the electronic control when the factory-set
clogging threshold is exceeded depending on the combination
of fi lters selected.
● Gravimetric fi lters (G). Cleaning can be done with a household
vacuum cleaner. Replace them regularly.
● Creased opacimetric fi lters (F). It is necessary to replace them.
Filter removal:
● Filters G or G+F: the frames with each type of filters,
gravimetrics and opacimetric (if the unit has includes the
latter), are assembled over sheet steel profi les. By dragging
a tab, they slide along the corresponding rail.
Tabs in displacement
● Filters F+F: the frames with the set of filters F+F are
assembled over a sheet steel profi le. By dragging a tab, they
slide along the rail.
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Note: the access panel to the fi lters is fi tted with hinges + quarter-
turn latches of stainless steel and 8 mm triangular insert.
Rotary heat exchanger (optional)
By the right panel (viewed from the front), it is possible to access
inside of the recovery module to carry out the maintenance work.
Quarter-turn
latches
Access panel
to the recovery
module
The removal side panels of the module incorporate stainless
steel quarter-turn latches with 8 mm triangular inserts.
● Closing mode:
First rotate 90º (anti-clockwise): closing brings
the latch to the locked position. The door
cannot be opened.
Acces to the
servomotor of
the extraction
damper
Access to
gravimetric
fi lters in the
extraction air
Access to
gravimetric
fi lters in the
fresh air and
to the damper
servomotor
Wheel motor
Tabs in
displacement
The procedure for extraction and cleaning of fi lters is equal to
that described in the previous section.