Two public review drafts are now available related to
Appendix G of ASHRAE Standard 90.1. Both can be downloaded from

https://osr.ashrae.org/

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Addendum r Second Public Review Draft

This addendum changes Appendix G from an informative
appendix to a normative appendix. The second independent
substantive change public review draft has been approved in
response to comments received during the first public review
period.

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Addendum ai First Public Review Draft

This addendum is intended to reduce the inequities typically
associated with modeling district cooling systems per the
requirements of Appendix G in of ANSI/ASHRAE/IESNA Standard
90.1-2007.

--
Jason Glazer, P.E.