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23 8.2. Installation of the rack without fans In order to provide adequate cooling, proper airflow must be established. As such, the following items must be observed: • • • If fans are not available and the rack is installed in ambient temperatures near 45C, it is advisable to leave the rack sides completely open. See fig 5. Do not open the side doors. This could cause fans to move air from outside rather than through the rack. Do not place objects near the rack that could clog the ventilation inlets and outlets. If the rack is not complete, the subracks must be placed from the top downwards without leaving large gaps in between, fig. 4. EN fig. 4 fig. 5
