4 InRow™ Chilled Water Air Conditioners Technical Specifications 990-4618A-001
Hot Aisle Containment System
Modular ceiling tiles and doors can be used to enclose the hot aisle. This increases the densities that can be
handled in a single rack enclosure by eliminating mixing of hot and cold air streams. This method, called load
neutralization, removes the heat from the hot aisle, cools it, and then returns it to the surrounding room area at
or slightly below room temperature. The warmer return air temperatures that are achieved in this application
increase the capacity of the air conditioner and, in many cases, eliminate the need for make-up humidification.
Use of modular ceiling tiles across a 914.4 mm (3 ft) hot aisle that connects two opposite rack enclosures
makes expansion quick and simple. Expansion kits, with the necessary ceiling tile and all baying hardware, can
be ordered to increase the size of the hot aisle by one rack on each side. The end doors can be easily removed
and re-attached for expansion.
The enclosed hot aisle prevents any warm return air from mixing with cold supply air. In effect, all surrounding
room air can act as supply air to the system. The hot aisle containment system is beneficial in any environment.
It can be deployed quickly in any controlled space without expensive additions to the infrastructure, such as
raised floor or ductwork.
Dimensions are shown are in mm (in).
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