Preventing The Recirculation Of Hot Air; Outside The Cabinet - ABB ACS800-U4 Hardware Manual

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In IP54 (UL type 12) cabinets, thick filter mats are used to prevent water splashes
from entering the cabinet. This entails the installation of additional cooling
equipment, such as a hot air exhaust fan.
The installation site must be sufficiently ventilated.

Preventing the recirculation of hot air

Normal vertical mounting
Cabinet (side view)
HOT
AREA
COOL AREA

Outside the cabinet

Prevent hot air circulation outside the cabinet by leading the outcoming 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.
Planning the cabinet assembly
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Main air flow out
Air baffle
plates
Main air flow in
Flange mounting
Main
Cabinet (side view)
air
flow
out
HOT AREA
COOL AREA
Main
air
flow
in
Air flow out
Air baffle
plate
Air flow in