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External air ducting
Before the appliance is installed, the appropriate ex-
ternal air passages must be made in the outside wall.
This is done – dependent on the wall material – by
installing suitable ducting in the wall (if necessary with
a protective grille on the outside end).
Round ducting “System 100” (external diameter
104mm) or flat ducting “System 100” (external dimen-
sions 54x110mm) should be used.
The air ducts must be cut off flush to the inside of the
wall and should be run with a slight downward incline
of 2-3° from inside to out!
The positioning of the ducts in the wall is determined
according to Fig.4 and Fig.5. The wall-mounting strip
can be used as a template to mark the positions
(Fig.3)
The left hand duct is always for the fresh air inlet and
the right hand duct is always for the exhaust air outlet.
The knock-outs in the wall-mounting strip are larger
than the external dimensions of the ducts!
Take note of the configuration of the air ducts in rela-
tion to the flow and return pipework!
Earthed plug and socket 230V~
The appliance is of the plug-in type. An earthed
socket 230V~ is thus to be installed at a maximum
distance of 50cm below the left hand side panel of the
appliance.
In order to prevent the connecting cable being seen
when the heating-ventilation system is finally installed,
we recommend, at least in new buildings, that he
socket be installed in the hatched area under the ap-
pliance as per Fig.6.
Plug the appliance in only after all installation work
has been completed!
Dimension diagrams
Fig.2 External dimensions of the appliance
Type
