Maico DSR 35-2 S, Mounting And Operating Instructions, Page: 11 / 24

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7. Installation preparation
DANGER
Danger to life from electric
shock.

Switch the mains fuse off.
Wall, ceiling or bracket 7.1
Notes
● Any installation position. IP X4 only when
installed in ducts with at least 1 m of duct
on the suction and pressure sides.
● Only install on walls, ceilings or brackets
with sufficient load-bearing capacity.
WARNING
Danger of injury from failure
to mount ventilation box
securely.

Make sure you use mounting
material, which is sized for the
purpose.

Decide on the installation location. Make
sure there is sufficient distance to the
wall/ceiling so that the housing cover and
the fan unit can also be removed.

Lay a permanent power cable to the
installation location.
Preparing the ventilation ducts 7.2
Notes
● Only use folded spiral-seams ducts that
match the nominal diameter. Ø 125,
Ø 160, Ø 200, Ø 250, Ø 315, Ø 355 or
Ø 400 ducts are permitted, depending on
unit type.
● Install an air filter in the ventilation duct,
e.g. Maico TFE if operating the unit in a
dusty environment.
8. Installation
Fitting ventilation box 8.1
As far as possible, install the
ventilation box such that there is no
transfer of vibrations to the duct
system, e.g. by using Maico EL
flexible cuffs and vibration dampers.

Make sure there is a level surface at the
installation location.

Mark the position of the 4 mounting holes
and make the holes.

For suspended duct systems, fit a
mounting support with sufficient load-
bearing capacity.

Screw the ventilation box permanently to
the wall, ceiling, bracket or mounting
support using suitable mounting material
to be supplied by the customer.
Note air direction arrow on the
rating plate.

Fit permitted folded spiral-seams ducts and
secure with flexible cuffs
Electrical connection 8.2
DANGER
Danger to life from electric
shock.

Switch the mains fuse off.

Position a warning notice to
avoid the unit being acciden-
tally switched back on.
The cabling between the power and
the terminal [3] box must be
permanent.
Voltage controllable fans are
allowed to be used in continuous
operation with a minimum of half
of the nominal voltage. If this is
not complied with, it can cause
damage to the motor unit.
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