ASHRAE 90.4-2019
Standard 90.4-2019 -- Energy Standard for Data Centers- (ANSI Approved)

Standard No.
ASHRAE 90.4-2019
Release Date
2024
Published By
SCC
Latest
ASHRAE 90.4-2019
Scope
  Full Description 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

ASHRAE 90.4-2019 history

ASHRAE 90.4-2019 -All Parts

ASHRAE 90.1 I-P ADD A-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD AA, AB, AG, AH, AJ, AL, AM-200 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD AC, AN, AO-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD AE,AI-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD AP, AQ, AR, AV-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD B-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD C-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD CR-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD D-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD DA-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD H-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD I-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD K-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD L-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD M-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD N-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD Q-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD R-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD S-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD W-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ADD Y-2006 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P ERTA-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 10-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 11-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 12-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 13-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 14-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 15-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 16-2008 INTERPRETATION IC 90.1-2004-16 OF ANSI/ASHRAE/IESNA STANDARD 90.1-2004 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 6-2007 INTERPRETATION IC 90.1-2004-6 OF ANSI/ASHRAE/IESNA STANDARD 90.1-2004 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 7-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P INT 8-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings I-P Edition; Replaces Errata 03/29/2007 [Refer To: ASHRAE 90.1 USER鈥橲 MANUAL] ASHRAE 90.1 I-P INT 9-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 I-P-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings Includes ANSI/ASHRAE/IESNA Addenda listed in Appendix F ASHRAE 90.1 SI ADD A-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD AA, AB, AG, AH, AJ, AL, AM-2006 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD AA-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD AB-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD AC,AN,AO-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD AD-2005 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD AP, AQ, AR, AV-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD B-2021 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD C-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings ASHRAE 90.1 SI ADD CR-2020 Energy Standard for Buildings Except Low-Rise Residential Buildings


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