
The space required for installing, operating, serv-
icing, and repairing all AHU components has been
taken into consideration The maintenance access is
at least as deep as the units
The room must provide a stable and flat foundation
in accordance with the site requirements (see order-
specific air handling unit data sheet from TROX)
Never use the air handling unit for static tasks or as
the building roof
Leaking water
NOTICE!
Physical damage as a result of leaking water!
If the water-carrying system is not sealed tightly and
water leaks out, it may cause significant damage to
the building.
– Ensure that leaking liquids are diverted away
Condensation
NOTICE!
Condensation can cause physical damage!
When the system is at a standstill and outdoor tem-
peratures are low, water vapour from the building or
the environment may condense in the air handling
unit.
– Prevent condensation from forming with the help
of shut-off dampers facing towards the building,
or by using a heating coil.
Installation room foundation
The installation room foundation must fulfil the following
requirements:
The foundation consists of horizontal, flat and stable
concrete or a flat steel substructure
The natural frequency of the substructure, particu-
larly in the case of steel structures, is sufficiently dif-
ferent from the excitation frequency of rotary compo-
nents, such as fans, motors, pumps, refrigerant
condensers, etc.
For air handling units with condensate drains, the
height of the substructure is at least as high as the
siphon, see
Ä
‘Connecting siphon’ on page 27
For the additional damping of structure-borne noise
– for example, with rubber or elastomer boards –
between the foundation and air handling unit, make
sure all AHU components are precisely aligned
(movement of doors, proper sealing at connections)
4.2.2 Requirements for outdoor installa-
tion
Installation location
The following points must be observed for air handling
units for outdoor installation:
The installation location is:
– not an area with a potentially explosive atmos-
phere
– free from conductive dust particles
– free from strong electromagnetic fields
– free from aggressive media, and
– fitted with a correctly functioning drainage
system
The installation location must provide a stable and
flat foundation in accordance with the site require-
ments (see order-specific air handling unit data
sheet from TROX)
The space required for installing, operating, serv-
icing, and repairing all AHU components has been
taken into consideration The maintenance access is
at least as deep as the units
The installation location must be secured to prevent
persons, tools, and materials from falling in accord-
ance with local regulations
Suitable fall protection equipment must be available
The AHU components must not be accessible to
unauthorised persons
All AHU components must be accessible without
posing a danger to people
The maximum permissible roof loads, the building
structural engineering calculations, and external
influences such as rain, snow, wind, direct sunlight,
etc., must be taken into consideration
Cabling between the air handling unit and the
external switch cabinet must be carried out by a pro-
fessional and with due regard to external influences
such as rain, snow, wind, direct sunlight, etc.
All media lines and the AHU components to which
they are connected must be frost-proof
Never use the air handling unit for static tasks or as
the building roof
Foundations in the outdoor area
The information regarding the foundation of the
installation room applies,
Ä
‘Installation room foun-
dation’ on page 17
For roof installation, check the load capacity and
support structure of the roof; consult an engineer if
necessary
There must be a continuous steel substructure
along the entire length of the air handling unit
The steel substructure supports must be designed in
such a way that the maximum deflection under load
is L/500 (L = support length). A maximum deflection
under load of 10 mm must not be exceeded
Installation and assembly
Requirements for the installation loca... > Requirements for outdoor installation
Air handling unit X-CUBE compact 17