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10
●
Connect the ducting to the duct fan using
flexible cuffs, e.g. MAICO ELR, in order to
prevent the transmission of vibrations to
the duct system.
●
Install an air filter, e.g. MAICO TFE if
operating the unit in a dusty environment.
7. Installation
Installation
As far as possible, install the EFR-
Flatbox such that there is no transfer
of vibrations to the ducting system,
e.g. by using MAICO ELR flexible
cuffs and vibration dampers.
Make sure there is a level surface at the
installation location.
Position the mounting bracket and mark
the locations of the four holes that have
to be drilled.
Drill the holes and insert fixing plugs.
WARNING
Danger of injury caused by
inadequate mounting of the
EFR Flatbox.
Make sure you use mounting
material, which is sized for the
purpose.
Bolt or screw the mounting bracket to the
wall/ceiling/bracket using suitable mounting
material to be supplied by the customer.
Insert the EFR Flatbox in the cut-outs in the
mounting bracket and fix it in place. Tighten
both knurled thumb screws.
Install suitable folded spiral-seams duct.
Make sure that the ducting is not twisted
during installation.
Electrical connection
DANGER
Danger to life from electric
shock
Switch the mains fuse off.
Position a warning notice to
avoid the unit being
accidentally switched back on.
CAUTION
Danger of short-circuits
through incorrect feeding of
the power cable into the
terminal box.
Feed the power cable into the
terminal box correctly.
Make sure there is tension
relief in the case of a 90°
cable feed. Tension relief to
be supplied by the customer.
The cabling between the power and
the terminal box must be permanent.
Remove the terminal box cover.
Separate out one of the two knockout
points on the wall of the terminal box (see
arrows).
Make sure there is tension relief in the case
of a 90° cable feed.
Strip the insulation off the power cable and
feed it into the terminal box.
CAUTION
Danger of short-circuits
caused by damp if the power
cable is not inserted correctly.
Insert the power cable
correctly.
Connect
plug [10]. See printed label on the
plug and the wiring diagram on Page 12.
Locate plug [10] on the plug connection.
Lay the power cable. See wiring diagram in
the terminal box.
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