Data Sheet

Technical System Catalogue/Climate control
Cooling units
3 - 22
It is important to ensure “even” air circulation inside the
enclosure. Air inlet and outlet openings in the internal circuit
must on no account be obstructed by electrical installations.
This would prevent air from circulating inside the enclosure.
Under such conditions, the cooling capacity of the device
would not be adequately utilised. A clearance of > 200 mm
must be guaranteed.
Note:
Wall-mounted cooling units should never be fitted directly
behind the mounting plate. Active power components are
located on the front of the mounting plates. The cooling unit
would then be left to operate in its own air short-circuit.
If it is impossible to install the device any other way, appropri-
ate air baffle plates should be used, and air inlet and outlet
openings should be provided in the mounting plate.
Accessories:
Air diverter, see Cat. 33, page 475.
200
Free air circulation
When using roof-mounted units, particular attention should
be paid to the air flow from blowers built into electronic
components (such as frequency converters and other drive
units).
Internal circuit –
Roof-mounted units
Flow conditions