Carrier 50EN - Page 30

Packaged rooftop units
30
• Filters in models 90 to 120:
Allen M4 screw
for attachment
to the rail
The screw that is attached to the rail must be unscrewed to remove
the fi lters. With the rail freed, the two frames can be removed tilting
the rail slightly.
• Filters in models 160 to 180 with fi lters G or G+F:
Tab for displacement
of gravimetric fi lters
on the lower rail
Rail for
opacimetric
fi lters
First the two frames located on the lower rail must be removed. By
dragging the tab, they slide along the rail.
Tab for
gravimetric
fi lters of the
lower rail
when sliding
Tab for displacement
of gravimetric fi lters
of the upper rail
Air fi lters
- Clean regularly. Depending on the installation conditions, the fi lter
aspect must be examined to defi ne the cleaning periodicity.
- Gravimetric fi lters (G). Cleaning the fi ltering mesh can be done with
a household vacuum cleaner, or else by submerging it in water.
- Creased opacimetric fi lters (F). It is necessary to replace them, which
is why spare parts should be planned for.
Filter removal:
- Filters G or G+F: the frames with each type of fi lters, gravimetrics
and opacimetric (if the unit has includes the latter), are assembled
over sheet steel profi les.
- Filters F+F: the frames with the set of fi lters F+F are assembled
over a sheet steel profi le.