ASHRAE TC 9.9
ASHRAE TC 9.9 is the technical committee of ASHRAE that covers mission-critical facilities, data centers and electronic equipment, and it publishes the widely used thermal guidelines for data processing environments. The guidelines define recommended and allowable temperature and humidity ranges by equipment class. Wider allowable ranges let designers use more outside-air or economizer hours, which affects how a site’s climate translates into cooling energy and water use.
The full guide · Water, gas & fiberClimate, Cooling and Data Center Site SelectionHow climate affects data center site selection: ASHRAE temperature ranges, free cooling hours, peak design days, liquid cooling and the tradeoff with water.Where ASHRAE TC 9.9 comes up
- Environmental & physical riskClimate Change, Future Heat and Data Center Site Risk
- Grid regionsData Center Site Selection in the Mountain West and Desert Southwest
- Campus design & constructionData Center Cooling Plant and Equipment Yard Space: Chillers, Dry Coolers and Cooling Towers
- Water, gas & fiberClosed-Loop and Waterless Data Center Cooling: What It Means for a Site
- Water, gas & fiberAir vs. Liquid Cooling: What Each Needs From a Site
- Environmental & physical riskWildfire Risk and Data Center Siting: Hazard Maps, Power Shutoffs and WUI Codes
- Site strategy by data center typeHigh-Density GPU Racks: What 120 kW+ Racks Ask of a Data Center Site