APC ACRD500 Service Manual download pdf (Page 11)

3InRow RD Technical Data Manual

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.

Use of modular ceiling tiles across a 914.4-mm (3-ft) hot aisle that connects two opposite rack enclosures makes expan-

sion 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 flooring or ductwork.

Dimensions are shown in mm (in).

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APC ACRD500 Service Manual Page 11