User manual

5 Installation
EN
10 Rittal enclosure cooling unit
5 Installation
5.1 Safety instructions
 Please be sure to observe the applicable regulations
governing electrical installations of the country in
which the device is installed and operated, as well as
national regulations for accident prevention. Please
also observe any internal company regulations, such
as work, operating and safety regulations.
 The technical specifications and limit values stated
must not be exceeded under any circumstances. In
particular, this applies to the specified ambient tem-
perature range and IP protection category.
5.2 Siting location requirements
When choosing the installation site for the enclosure,
please observe the following:
– The site for the enclosure, and hence the positioning
of the cooling unit, must be carefully selected so as to
ensure good ventilation (clearance between cooling
units and clearance between a cooling unit and the
wall must be at least 200 mm in each case).
– The cooling unit must be installed and operated with a
maximum deviation of 2° from the vertical.
– The installation site must be free from excessive dirt,
aggressive ambient conditions and moisture.
– The ambient temperature must not exceed 60°C.
– It must be possible to fit a condensate water discharge
(see section 5.3.8 "Connect the condensate water
discharge").
– The mains connection data as stated on the rating
plate of the cooling unit must be guaranteed.
Size of installation room
– Units SK 3186930 and SK 3187930 must not be in-
stalled in rooms of less than 6 m³.
– Units SK 3188940 and SK 3189940 must not be in-
stalled in rooms of less than 12 m³.
Electromagnetic interference (EMI)
– Interfering electrical installations (high frequency) must
be avoided.
5.3 Assembly procedure
5.3.1 Assembly instructions
 Before assembling, please ensure that the enclosure
is sealed on all sides (IP 54). Increased condensation
will occur later during operation if the enclosure is not
airtight.
 If applicable, additionally fit a door limit switch (such as
4127.010) to the enclosure which switches off the
cooling unit when the enclosure door is opened to pre-
vent excessive condensation (see section 3.1.7 "Door
limit switch").
 Please ensure that the electronic assemblies in the en-
closure allow the even circulation of air.
Fig. 4: Never direct the cold airflow at active components
Warning!
Please note the maximum weights that
may be lifted by individuals. It may be
necessary to use lifting gear.
Warning!
Work on electrical systems or equip-
ment may only be carried out by an elec-
trician or by trained personnel under the
guidance and supervision of an electri-
cian. All work must be carried out in ac-
cordance with electrical engineering
regulations.
The cooling unit may only be connected
after the aforementioned personnel have
read this information!
Use only insulated tools.
Follow the connection regulations of the
appropriate electrical supply company.
The cooling unit must be connected to
the mains via an all-pin isolating device
to overvoltage category III (IEC 61058).
The cooling unit is not de-energised until
all of the voltage sources have been dis-
connected!