SKF Multilog On-Line System IMx-M User Manual page 223

One fan tray and an air guide plate shall be mounted for each IMx-M rack:

The fan tray must be mounted directly below each IMx-M rack.

The air guide plate must be mounted directly above each IMx-M rack.
The following cooling components are recommended:

Fan tray, article number: Rittal 3352.500

Guide frame, article number: Rittal 3357.100

Air guide plate, article number: Schroff 10713-144
When using the fan tray, the maximum allowed ambient operating temperature shall be
55 °C (131 °F) under normal operating conditions
SKF Multilog On-Line System IMx-M
User Manual
Figure 4 - 3.
Illustration of Desired Diverted Airflow.
Hardware
Installation
4 - 5