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Rittal air/water heat exchanger assembly instructions
4 Assembly and connection
EN
4
Assembly and connection
4.1 Choosing the installation site
When choosing the installation site for the enclosure,
please observe the following:
– The air/water heat exchanger must be installed
and operated in a vertical position (maximum
deviation: 2°).
– The ambient temperature must not 70°C.
– It must be possible to fit a condensate discharge
(see “4.4 Connecting the condensate discharge”,
page 9).
– It must be possible to fit a cooling water supply and
return (see “4.5 Connecting the water connection”,
page 9).
– The mains connection data as stated on the rating
plate of the unit must be guaranteed.
– For ease of servicing, appropriate access to the
device must be guaranteed.
4.2 Assembly instructions
4.2.1 General
– Check the packaging carefully for signs of damage.
Any packaging damage may be the cause of a
subsequent functional failure.
– The enclosure must be sealed on all sides (IP 54).
Increased condensation will occur if the enclosure is
not airtight.
– The air inlet and outlet must not be obstructed on the
inside of the enclosure.
4.2.2 Layout of the components in the enclosure
Fig. 3:
Never direct the cold airflow at active components
Exercise particular caution with the airflow from the
blowers of built-in electronic components (see fig. 3).
Fig. 4:
Targeted air routing inside the enclosure
Caution! Risk of condensation!
When arranging the components inside
the enclosure, please ensure that the cold
airflow from the air/water heat exchanger
is not directed at active components.
Please also ensure that the cold airflow is
not directed at the warm exhaust airflow
from active components such as inverters.
This may lead to an air short-circuit and
therefore prevent adequate climate con-
trol, or may even cause the air/water heat
exchanger’s internal safety devices to
cease cooling operation.
Note:
The air/water heat exchangers should
never be fitted directly behind the mounting
plate. If it is not possible to install the unit
any other way, appropriate air baffle plates
should be used, and air inlet and outlet
openings should be provided in the mount-
ing plate.
It is important to ensure even air circulation
inside the enclosure. Under no circum-
stances should air inlet and outlet openings
be obstructed, otherwise the cooling per-
formance of the unit will be reduced. Ensure
a suitable distance from electronic com-
ponents and other installed enclosures
so that the required air circulation is not
obstructed and prevented.
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