990-4618A-001 InRow™ Chilled Water Air Conditioners Technical Specifications 3
Scalable Solutions for Critical Environments
Advantages of row-based cooling
InRow cooling products improve energy efficiency and cooling ability in a number of ways. First, the InRow
CW air conditioner draws air directly from the hot aisle, allowing the InRow unit to take advantage of higher
heat transfer efficiency due to higher temperature differences. It can then discharge room-temperature air
directly in front of the servers it is cooling. This increases energy efficiency by allowing the chiller to operate
at higher leaving water temperatures.
Placing the cooling unit in the row enables the unit to operate at higher
return and supply air temperatures yielding 100% sensible capacity, which significantly reduces the need for
humidification.
Scalable for High Density
The predictable performance of the row-based architecture makes it well-suited for high density applications.
The focus on heat removal instead of cold air delivery is the key to making this approach scalable. The design
of the InRow CW air conditioner allows it to be easily added in the row as the demand for cooling increases.
The additional benefit of the row-based architecture is the ability to add hot air containment. Containing the hot
air further reduces any chance of hot and cold air streams mixing. This provides ultimate predictability and
allows the cooling capacity to be matched to the IT heat load.
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