- Video Introduction of the New Aztec AMC Evaporative Cooling Air Turnover System
- Designing Data Centers as Thermos Bottles
- A New Video on YouTube Describing How the Aztec Evap System Works
- Aztec To Be In Capacity North America Exhibit Hall
- Virtual Reality
- A Simple Concept That Saves Big Dollars
- Indirect Evaporative Cooling Research Project Launched
- Canadian Patent Granted for Mestex Digital High Turndown Burner
- So You Think Your Critical HVAC System Is Reliable?
- Aztec Provides Fresh Air Intake Penthouses for Data Centers in Northwestern US
- Shading and Make-Up for Building Designers
- Credibility and Trust
- How I Spent My Summer Vacation
- Too Hot to Handle? A Simple Reminder.
- Preaching to the Choir
- Evaporative Cooling Anaysis for Data Modules in Two Diverse Climates
- Aztec Indirect Evaporative Cooling System on Display at DFW ASHRAE Golf Outing
- How We Used To Do It
- Air Pollution and HVAC
- Mestex, Division of Mestek YouTube Channel
- Aztec Evaporative Cooling for Data Centers at Data Center World
- GreenBuild Toronto
- Trane Division of Ingersoll-Rand in Lawsuit Over Wireless Technologies
- New BIM Objects From The Aztec Brand
- DOE Proposes Building Rating System
- The Importance of Correct Static Pressure for Direct Fired Make-Up Air Equipment
- Instant Online Document Lookup Using Microsoft Tags
- Do Evaporative Cooling Systems Use Too Much Water?
- Sustainability at Mestek Dallas
- Facebook Offers Their Outside Air Cooling Solution To All Data Center Owners
- Restaurant Energy Saving Idea That Can Be Used Anywhere
- Planning for Volatility
- Ever Wonder Where the Power Goes in a Data Center?
- Green Buildings Get Another Boost
- ASHRAE Show Report
- The Story of SHR or Why My Classroom is Stuffy
- CFD, Air Turnover, and the Pharmaceutical Industry
- It is not sustainable if it is not maintainable... or if it breaks down
- Accounting Rule Change Might Impact HVAC
- Reduce electrical demand load with an Aztec indirect evaporative cooling unit
- Lower Cost of Ownership with the Applied Air FAP
- Everything You Want to Know in a Flash
- Data Centers and Evaporative Cooling Webinar August 23
- New "Green" Product Announcement
- DDC Application Case Studies
- PowerPoint showing the importance of gas pressure, static pressure, and voltage
- Webinar: 'The Importance of Correct Gas Pressure, E.S.P. and Voltage'
- An Old Solution to a New Problem
ASHRAE TC 9.9 Expands Data Center Temperature Ranges Again
A February 22 article in the Data Center Knowledge emag published more information regarding the third revision of the ASHRAE “Thermal Guidelines for Data Processing Environments”. According to the Data Center Knowledge article the expanded ranges for operating temperatures and humidities may be a way for ASHRAE to catch up with the recommendations of the major players in the IT industry. Google, Intel, Microsoft, and HP are all quoted as praising the higher operating ranges.
In fact, Christian Belady, the General Manager of Data Center Research at Microsoft Global Foundation Services, was quoted as saying “Most companies in the cloud business are already procuring servers that operate well outside of the ASHRAE specs to allow for aggressive economization to drive much greater efficiencies then what is achievable using the ASHRAE specs...”
The new ASHRAE guidelines define four classes of operating environment with classes 3 and 4 recommended to use outside air only for cooling. Class 1 and 2 are defined as typical data center server environments, although Mr. Belady’s comments might suggest that the big data center players have moved past this already.
However, the ASHRAE allowable range:
o class 1 is now 89.6 degrees F,
o class 2 or 3 is now 95 degrees F,
o class 4 is now 104 degrees F.
In previous news we have noted that data centers are becoming prime applications for evaporative cooling in many parts of the world as data center operators struggle to reduce energy costs. These new guidelines make evaporative cooling a viable HVAC solution for even more data and IT applications. Indirect evaporative cooling systems such as the Aztec ASC line can easily provide temperatures to satisfy even class 1 conditions in many climates.