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ASHRAE Standard 90.4 establishes the minimum energy efficiency requirements of data centers for design, construction, and operation and maintenance, and use of on-site or off-site renewable energy resources.The standard was developed to be code-intended, similar to Standard 90.1, and references in Standard 90.4 are made to Standard 90.1 for building envelope, service water heating, lighting, and other equipment criteria.
- Key updates to the 2019 edition include:
- * In Section 6, a reduction of the maximum MLC values required for compliance, and removal of the design MLC compliance path in favor of a more accurate maximum annualized MLC calculation
- * In Section 8, a reduction of the maximum ELC values for the UPS segment required for compliance, made to recognize improvements in the efficiency of core electrical distribution equipment
Product Details
- Published:
- 2019
- ANSI:
- ANSI Approved
- Number of Pages:
- 56
- Units of Measure:
- Dual
- File Size:
- 1 file , 1.3 MB
- Redline File Size:
- 2 files , 8.1 MB
- Product Code(s):
- D-86302, 86302