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3.1.8 Additional interface X3
Note:
The electrical signals at the interface are
extra-low voltages (not safety extra-low
voltages to EN 60 335).
An additional interface card may be connected to
the 9-pole SUB-D connector X3 in order to incorpo-
rate the cooling unit into superordinate monitoring
systems (available as an accessory, interface card
Model No. SK 3124.200).
3.2 Proper usage
Rittal enclosure cooling units were developed and
designed in accordance with the state of the art and
the recognized rules governing technical safety.
Nevertheless, if used improperly, they may pose a
threat to life and limb or cause damage to property.
The device is only intended for cooling enclosures.
Any other use shall be deemed improper. The manu-
facturer will not be liable for any damages caused as
a result of improper use, or for incorrect assembly,
installation or use. All risk shall be borne solely by the
user.
Proper usage shall also include the observance of all
valid documents and compliance with the inspection
and servicing conditions.
3.3 Scope of supply
The unit is supplied in a packaging unit in a fully
assembled state.
Please check the delivery for completeness:
Qty.
Description
1
Enclosure cooling unit
1
Dispatch bag:
1
– Assembly and installation instructions
1
– Assembly, installation and
operating instructions on CD-ROM
1
– Self-adhesive tape
1
– Connector X1
8
– Threaded rods
1
– Declaration of conformity
– Nuts, washers
1
Drilling template
Tab. 1: Scope of supply
Rittal cooling unit assembly instructions
4 Assembly and connection
4
Assembly and connection
4.1 Choosing an installation site
When choosing an installation site for the enclosure,
please observe the following:
– The installation site and the positioning of the
cooling unit must be selected in such a way as to
ensure good ventilation (distances between units
and distances between the unit and the wall must
be at least 200 mm in each case).
– The cooling unit must be installed and operated in
a vertical position (maximum deviation: 2°).
– The site must be free from excessive contamina-
tion and moisture.
– The ambient temperature must not exceed 55°C.
– It must be possible to create a condensate drain
(see "4.4 Connecting the condensate drain",
page 11).
– The mains connection data as stated on the rating
plate of the device must be guaranteed.
4.2 Assembly instructions
4.2.1 General
– Check the packaging carefully for signs of damage.
Traces of oil on damaged packaging are an indica-
tion of refrigerant loss and leakages. Any packaging
damage may be the cause of a subsequent func-
tional failure.
– The enclosure must be sealed on all sides (IP 54).
Condensation will occur if the enclosure is not air-
tight.
– In order to avoid excessive condensation in the
enclosure, we recommend installing a door limit
switch (e.g. PS 4127.000) which deactivates the
cooling unit when the enclosure door is opened
(see "3.1.7 Door limit switch", page 6).
GB
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