19
Subject to change without notice | 83050400fUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Position the wire mesh grille in the assembly
frame…
Set the weather / rain guards on the assembly frame
in the wall duct and screw down…
8 x
NOTICE.
If the wall duct is positioned above ground level,
attach the weather guard.
If the wall duct is positioned in a light well (be-
low ground level), attach the rain guard.
Repeat – the process on the air output side.
Installation / connection
to heating circuit
ATTENTION
Connect the unit to the heating circuit accord-
ing to the hydraulic diagram for the respective
model.
“Hydraulic connection” instructions.
NOTICE.
Check to make sure that the diameters and
lengths of the pipes for the heating circuit are
sufficiently dimensioned. The free compression
of the circulating pumps must be able to deliver
at least the minimum flow rate required for your
model.
Overview “Technical data / scope of delivery”,
“heating circuit” section.
ATTENTION
When installing the connections, always secure
the connections on the unit from twisting, in or-
der to prevent damage to the copper pipes in
the interior of the unit.
Rinse heating circuit thoroughly prior to connecting
the unit to the heating circuit…
NOTICE.
Contamination and deposits in the heating cir-
cuit can cause malfunctions.
Fit the hot water outflow (forward flow), the hot
water circuit and the shared inflow (return flow)
on the heat pump side with the included shut-off
devices and flexible hoses…
NOTICE.
During installation of the shut-off devices, the
liquefier of the heat pump can be rinsed, if nec-
essary.
