FRIEDHELM LOH Rittal 3273 Series, Руководство по сборке и эксплуатации

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Rittal enclosure cooling unit 7
4 Assembly and connection
EN
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).
Components for targeted air routing are available as ac-
cessories – please refer to the Rittal Catalogue.
Fig. 4: Targeted air routing inside the enclosure
Fig. 5: Cover bungs
4.3 Fitting the cooling unit
The enclosure cooling unit is mounted on top of the en-
closure roof:
To this end, cut-outs must be made in the roof plate as
per the drilling template included with the supply.
4.3.1 Making the cut-outs

Affix the supplied drilling template to the roof of the en-
closure using adhesive tape.
There are dimensioning lines on the drilling template to
suit the installation type for your cooling unit.

Make the cut-outs including the line width as per the
drilling template.

Deburr the cut-outs.
4.3.2 Top mounting of the cooling unit

Affix the supplied sealing frame onto the cut out roof
plate.
Note:
When using an air duct system, care must
be taken to ensure that it is laid straight and
without kinks wherever possible. This mini-
mises the resistance to the cold airflow.
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 perfor-
mance of the unit will be reduced. Ensure a
suitable distance from electronic compo-
nents and other installed enclosures so that
the required air circulation is not obstructed
and prevented.
One cold air outlet from the cooling unit
must be kept open at all times when operat-
ing with the air duct, to prevent the accumu-
lation of cold air inside the unit.
Note:
When using the cover bungs, only a maxi-
mum of 1 or 2 cold air outlet openings may
be sealed, depending on the unit type.
Note:
Pre-configured, reinforced roof plates with
cut-outs to match your enclosure are avail-
able as accessories; refer to the Rittal Cata-
logue.
Caution!
Carefully deburr all cut-outs to prevent
injuries caused by sharp edges.
3273.xxx
3383.xxx
3384.xxx
3385.xxx 3359.xxx
3382.xxx
3386.xxx
3387.xxx
max. 2x max. 1x