11
Types of installation
■ Floorstanding installation with cable
entry above ground level
■ Floorstanding installation with cable
entry below ground level
■ Wall mounting
Technical guide
Installation information
■ Floorstanding installation:
Use supports (accessories) for floor-
standing installation.
Where such supports cannot be used,
install the external unit freestanding on
a solid base of at least 100 mm height
(provide on site).
In difficult climatic circumstances
(temperatures below zero, snow,
humidity) install the appliance on a
plinth of approx. 300 mm height.
Take account of the weight of the
external unit (see following table).
■ Wall mounting:
Use the wall mounting bracket set
(accessories).
The wall must meet the structural
requirements.
■ Never install with the discharge side
facing the main wind direction.
■ Observe wind loads when installing
the unit on sites exposed to wind.
■ Provide wall ducts and protective
pipes for the refrigerant lines and elec-
trical cables without moulded parts
and change of direction.
■ Incorporate the external unit into the
lightning protection system.
■ Consider the heat emitted by the unit
when planning your weatherproofing
or an enclosure.
■ Ensure the condensate can drain
freely, and create a permanent gravel
bed below the external unit as a soak-
away.
■ In regions with prolonged cold sea-
sons (e.g. in Germany), provide an
electric supplementary heating facility
(accessories) for the condensate pan.
■ For insulating against structure-borne
noise and vibrations between the
building and the external unit, consider
the following measures:
– When cable entry is
above
ground
level, fit pipe bends in the refrigerant
lines for vibration compensation
(see "Connecting refrigerant lines").
– Route electrical cables/leads
between the internal and external
units free of stress.
– Installation only on walls with high
weight per area (> 250 kg/m
2
), in
other words not on lightweight walls,
roof structures etc.
– When installing the unit on the floor,
use only the rubber mounts sup-
plied; for wall mounting use the anti-
vibration mounts supplied with the
wall mounting bracket set; never use
additional anti-vibration mounts,
springs, rubber buffers etc.
Weight of external units
Type AWT-AC
Weight in kg
221.A04
43
221.A07
66
221.A10
110
221.A13
110
221.B10
113
221.B13
113
Installation sequence
Installing the external unit
(cont.)
5782 201 GB
Installation
