A19 -- Data Processing and Electronic Office Areas (SI)

Datacom (data processing and telecommunications) facilities are predominantly occupied by computers, networking equipment, electronic equipment, and peripherals. The most defining HVAC characteristic of data and communications equipment centers is the potential for exceptionally high sensible heat loads (often orders of magnitude greater than a typical office building). In addition, the equipment installed in these facilities typically (1) serves mission-critical applications (i.e., continuous operation), (2) has special environmental requirements (temperature, humidity, and cleanliness), and (3) has the potential for disruptive overheating and equipment failure caused by loss of cooling. Design of any datacom facility should also address the fact that most datacom equipment will be replaced multiple times with more current technology during the life of the facility. As described in Datacom Equipment Power Trends and Cooling Applications (ASHRAE 2005a), typical datacom equipment product cycles are 1 to 5 years, whereas facilities and infrastructure have life cycles of 10 to 25 years. Replacement equipment has historically required more demanding power and cooling requirements. Understanding these critical parameters is essential to datacom facility design.

Chapter Table of Contents

Design Criteria

HVAC Load Considerations

HVAC Systems and Components

Air Distribution

Ancillary Spaces

Other Systems and Considerations

Keywords: data centers, data processing

Citation: 2011 ASHRAE Handbook -- HVAC Applications:Chapter 19, Data Processing and Electronic Office Areas



Product Code(s): D-A192011SI