Special Cooling System Designs - Data Processing

Data processing areas may have special temperature and humidity requirements. Because they typically have longer operating hours, they may be served a separate refrigeration and air-side system.

Data processing areas house computers as well as ancillary equipment, such as printers. Computers generate significant heat and have components that are very sensitive to extremes of temperature, humidity and dust. Computer rooms don't necessarily require quick response to changes but overall system reliability is essential. Computer rooms are usually kept at the lower end of the temperature tolerance of 72 ± 2°F for two reasons: 72°F generally assures satisfactory operation, and it provides a cushion for short-term peak load temperature rise without adversely affecting computer operation.

The relative humidity should be around 50 percent ± 5%, and filtration should catch 45% of the particulates with a minimum of 20 percent. The direct supply of air to a computer should remove heat to no cooler than 60°F with a 65% relative humidity maximum and a 45% level of filtration quality.

And Furthermore . . .