• Horizontal confi gurations of CADB-N 05 to 30 models. The access to fi lters can be done by the
bottom panel and by the lateral panel.
• Horizontal confi gurations of CADT-N 45 to 80 models. The access to fi lters can be done by the top
panel and by the lateral panel.
• Vertical confi gurations. The access to fi lters can be done by the lateral panels.
Replacement fi lters are delivered in a plastic bag for extra protection. Remove the bag before installing
into the unit.
Before installing the fi lter make sure that the airfl ow direction is correct. (indicated by arrow in the
fi lter).
19.2. HEAT EXCHANGER
The access to the heat exchanger is performed by the bottom (horizontal CADB-N models 05 to 30), for
the top part (horizontal models of CADT-N 45 to 80) and for lateral part (vertical models).
Using a screwdriver, remove the access panels to the heat exchanger.
To release the heat exchanger, loosen the screw that fi x the heat exchanger to the internal structure.
FALLING OBJECTS
By loosening the screws that hold the panels, they will be released. In units installed
in ceiling, pay special attention to this operation to prevent the fall of panel. During the
maintenance signaling the area below the heat recovery unit and prevent personnel ac-
cess to it.
19.3. DRAINPIPE FOR CONDENSATE
Regularly inspect the drainpipe for condensate to make sure it is not blocked, if this is the case, re-
move the obstruction.
Not manipulate the heat exchanger for the fi nned area.
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