Assembly And Connection; Choosing The Installation; Site; Assembly Instructions - Rittal SK 3237.xxx Assemble And Operating Instructions

4 Assembly and connection

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 hence
the arrangement of the fan-and-filter
unit, must be carefully selected so as to
ensure good ventilation.
– The site must be free from excessive dirt
and moisture.
– The ambient temperature must be lower
than the permissible enclosure interior
temperature.
– The mains connection data as stated
on the rating plate of the unit must be
guaranteed.

4.2 Assembly instructions

4.2.1 General

– Check that the packaging does not show
any signs of damage. Packaging dam-
age may be the cause of a subsequent
functional failure.
– The fan-and-filter unit and outlet filter
must always be mounted on an enclo-
sure in order to ensure air exchange.
Note:
The outlet filter should be
at least the same size as the
fan-and-filter unit.
– The enclosure must be sealed on all
sides (IP 54). If the enclosure has a leak,
unfiltered, contaminated air may enter
the enclosure, depending on the direc-
tion of airflow of the fan.
4.2.2 Layout of the components
in the enclosure
Exercise particular caution with the airflow
from the blowers of built-in components.
For installation, it is important to ensure
that the airflows of fans and built-in com-
ponents do not have a negative influence
on one another (air short-circuit).
Rittal fan-and-filter unit assembly and operating instructions
The corresponding minimum distances
between the fan and component must be
observed in order to ensure unhindered air
circulation.

4.3 Fitting the fan-and-filter unit

or outlet filter

The fan-and-filter unit or outlet filter is
mounted on a vertical panel of the enclo-
sure:
• For this purpose, the appropriate door,
side or rear panel must be cut out using
the supplied drilling template.
The fan-and-filter unit is generally fitted in
the lower part of the enclosure, and the
outlet filter in the upper part.

4.3.1 Cutting out the enclosure

• Stick the supplied self-adhesive drilling
template to the envisaged position on
the door, side or rear panel of the enclo-
sure.
There are dimensioning lines on the drill-
ing plate for the cut-out and for the holes
required for mounting and securing the
fan, depending on the metal thickness
(cf. also Fig. 8 and Fig. 9, page 16).
Risk of injury!
Carefully deburr all cut-outs
to prevent injuries caused by
sharp edges.
• Make the cut-outs including the line
width as per the drilling template.
Deburr the cut-outs.
4.3.2 Fitting the fan-and-filter unit
• The fan may be fitted without tools, by
simply snapping into the preconfigured
mounting cut-out.
• However, if the metal thickness is great-
er than 3 mm, the fan will need to be
screw-fastened. To this end, remove the
louvred grille in order to gain access to
the lower mounting holes.
EN
7