Packaged rooftop units
31
To extract the fi lters from the upper rail, it is necessary to unscrew
the two screws that are attached to that rail.
Attachment
screws
With the rail freed, the two frames can be removed tilting the rail
slightly.
Do the reverse to place the frames back on. First the frames from the
upper rail will be placed on. Then the two rail attachment screws will
be placed on, and fi nally the frames of the lower rail will be placed on.
• Filters in models 160 to 180 with fi lters F+F:
First the two frames located on the lower rail must be extracted. By
dragging the tab, they slide along the rail.
Tab for displacement
of fi lters from the lower rail
Tab for displacement
of fi lters from the upper rail
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