4 Assembly and connection
EN
6
Rittal enclosure cooling unit
– The unit is designed solely for stationary use.
The cooling unit is state of the art and built according to
recognised safety regulations. Nevertheless, improper
use can pose a threat to the life and limb of the user or
third parties, or result in possible damage to the system
and other property.
Consequently, the cooling unit must only be used prop-
erly and in a technically sound condition! Any malfunc-
tions which impair safety should be rectified immediate-
ly.
Proper use also includes the observance of the docu-
mentation provided, and compliance with the inspection
and maintenance conditions.
Rittal GmbH & Co. KG is not liable for any damage which
may result from failure to comply with the documenta-
tion provided. The same applies to failure to comply with
the valid documentation for any accessories used.
Inappropriate use may be dangerous. Examples of inap-
propriate include:
– Use of the cooling unit over long periods with the en-
closure open.
– Use of impermissible tools.
– Improper operation.
– Improper rectification of malfunctions.
– Use of accessories not approved by Rittal GmbH &
Co. KG.
3.4
Scope of supply
The unit is supplied in a packaging unit in a fully assem-
bled state.
Please check the scope of supply for completeness.
4
Assembly and connection
4.1
Choosing the installation site
When choosing the installation site for the enclosure,
please observe the following:
– The site for the enclosure and the positioning of the
cooling unit must be carefully selected so as to ensure
good ventilation. Depending on the siting of the unit, if
several units are installed directly adjacent to one an-
other, the distance from the wall must be at least
200 mm.
– The cooling unit must be installed and operated in a
horizontal position (maximum deviation: 2°).
– The site must be free from excessive dirt, aggressive
ambient conditions and moisture.
– The ambient temperature must be within the limits
specified on the rating plate.
– It must be possible to fit a condensate discharge (see
section 4.4 "Connecting the condensate discharge").
– The mains connection data as stated on the rating
plate of the unit must be guaranteed.
4.2
Notes on assembly
4.2.1
General
– Check the packaging carefully for signs of damage.
Traces of oil on damaged packaging are an indication
of refrigerant loss and leakages. Any packaging dam-
age may be the cause of a subsequent functional fail-
ure.
– The enclosure must be sealed on all sides (IP 54). In-
creased condensation will occur if the enclosure is not
airtight.
– In order to avoid excessive condensation inside the
enclosure, we recommend installing a door limit
switch (e.g. 4127.010) which deactivates the cooling
unit when the enclosure door is opened (see sec-
tion 3.2.7 "Door limit switch").
4.2.2
Layout of the electronic components in the
enclosure
Qty.
Description
1
Enclosure cooling unit
1
1
1
1
1
1
1
Dispatch bag:
– Sealing plate (3273.xxx, 3383.xxx, 3384.xxx,
3385.xxx)
– Sealing frame
– Plug-in terminal strip
– Assembly and operating instructions
– Angular connector
– Screw-in nozzle
3
Blind rivet (3386.xxx, 3387.xxx)
1
Drilling template
Tab. 1:
Scope of supply
Note:
Risk of condensation!
When arranging the components inside the
enclosure, please ensure that the cold air-
flow from the cooling unit 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 converters. This may
lead to an air short-circuit and therefore pre-
vent adequate climate control, or may even
cause the cooling unit’s internal safety de-
vices to cease cooling operation.
Содержание Rittal 3273 Series
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