Disposition Of The Devices; Preventing The Recirculation Of Hot Air - ABB MicroFlex e190 User Manual

38 Mechanical installation


Disposition of the devices

For easy installation and maintenance, a spacious layout is recommended. Sufficient
cooling air flow, obligatory clearances, cables and cable support structures all require
space.
For layout examples, see section


Preventing the recirculation of hot air

Outside the cabinet
Prevent hot air circulation outside the cabinet by leading the outgoing hot air away
from the area where the inlet air to the cabinet is taken. Possible solutions are listed
below:
• gratings that guide air flow at the air inlet and outlet
• air inlet and outlet at different sides of the cabinet
• cool air inlet in the lower part of the front door and an extra exhaust fan on the roof
of the cabinet.
Inside the cabinet
Prevent hot air circulation inside the cabinet with leak-proof air baffle plates. No
gaskets are usually required.
Cooling and degrees of
Air baffle plates
COOL AREA
protection.
Airflow in