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Technical System Catalogue Climate Control

Cooling units Free air circulation 200 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. Internal circuit – Roof-mounted units Flow conditions 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). Technical System Catalogue/Climate control 3 - 22


Technical System Catalogue Climate Control
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