4 Assembly and connection
RITTAL outdoor cooling unit assembly and operating instructions 27
3.3 Supply includes
CS 9761.212
1 cooling unit
1 dispatch bag with:
1 female connector
1 set of assembly instructions
1 sealing plate
CS 9762.212
1 cooling unit
1 dispatch bag with:
1 condensate drain hose
1 hose clip
1 female connector
1 set of assembly instructions
Accessories required (for CS 9762.212)
A mounting frame CS 9765.051 and a climate control
cover, tailored to the width and depth of the enclo-
sure, are required for mounting on the CS modular
enclosure.
CS 9768.152
1 cooling unit
1 dispatch bag with:
1 hexagon socket head wrench,
width across flats SW 4
2 connector sleeves
1 female connector
1 set of assembly instructions
The outdoor cooling unit is generally supplied pre-
installed in a twin-walled CS outdoor enclosures. The
dispatch bag is enclosed with the enclosure in such
cases.
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 arrange-
ment of the cooling unit, must be carefully selected
so as to ensure good ventilation (distances be-
tween 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 ambient temperature must not exceed 55°C.
– 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. Traces of oil on damaged packaging
are an indication of refrigerant loss and leakages.
Packaging damage may be the cause of a subse-
quent functional failure.
– In order to avoid excessive condensation inside
the enclosure, we recommend installing a door lim-
it switch (e.g. PS 4127.010) which deactivates the
cooling unit when the enclosure door is opened
(see “3.1.6 Door limit switch”, page 26).
4.2.2 Layout of the electronic components
in the enclosure
It is important to ensure even air circulation inside the
enclosure. Under no circumstances should air inlet
and outlet openings be obstructed, otherwise the
cooling performance of the unit will be reduced.
Caution!
Risk of condensation!
When arranging the electronic compo-
nents inside the outdoor enclosure,
please ensure that the cold airflow 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 prevent
adequate climate control, or may even
cause the cooling unit’s internal safety
devices to cease cooling operation.
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