The displacement concept is used to distribute air. Hot air from electronic equipment rises and is absorbed. Cold air is fed from the top in a downward flow to the base of the equipment racks. This approach prevents hot spots in both the space and the equipment.
When appropriate, cold air is drawn in from outside to help provide cooling, reducing energy requirements.
These units include emergency cooling, supported by an emergency-power source such as 48 V batteries or and independent AC generator.




