Zehnder ComfoSpot 50 Instructions De Montage page 7

Installation of
the mounting block
The location of the ComfoSpot 50
must meet all local and national code
requirements. Ensure that proper clearance is
provided to other fixtures in bathrooms or other
"wet" rooms.
Install wall finishes (interior drywall and exterior
siding/trim) around the EPP mounting block,
leaving enough length on the EPP mounting
block to be cut flush with both interior and
exterior finishes.
Use the position of the drill holes for vertical
alignment and the position of the base for
horizontal alignment as shown in the figure by
the dotted line (Fig. 3).
Fig. 3 – alignment of the mounting block
Only non-expanding adhesive or low expansion
foam may be used to secure the mounting
block in the opening.
Before installing the ventilation unit, the EPP
mounting block must be cut to length so that it
is flush with the surface of the façade and the
interior wall (Fig. 4).
After the installation, reapply the dust covers
to both sides of the mounting block.
Fig. 4 – shortening the mounting block in a final step
Square mounting block
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