Puget Sound ASHRAE

ASHRAE/IESNA Standard 90.1-2007 Public Review Draft Addenda Available

To members of SSPC 90.1 and interested parties:

These drafts are scheduled for a 30-day public review from June 19, 2009 to July 19, 2009:

Addendum av to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This is the third public review of this addendum. This independent substantive change to the second public review draft proposes clarifications when controls are required to comply with lighting systems are retrofit.

Addendum az to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This is the second public review of this addendum. This independent substantive change to the first public review draft proposes clarifications for functional testing requirements for lighting.

Addendum be to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language provides for more vestibules in climate zone 3 for buildings less than 10,000 sq feet. This language has been revised to reflect addendum q to ASHRAE 90.1-2007.

Addendum bg to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language provides requirements for water-to-water heat pumps.

Addendum bh to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language provides requirements for multiple zone HVAC systems (that include simultaneous heating and cooling) to include controls that automatically raise the supply-air temperature when the spaces served are not at peak load conditions.

Addendum bj to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language adds an exception within Appendix G that allows users to claim energy cost savings credit for the increased ventilation effectiveness of certain HVAC system designs.

Addendum bm to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The intent of this addendum is to coordinate terminology for visible transmittance with NFRC 200.

Addendum bn to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This proposed addendum limits poorly oriented fenestration. Compliance can be shown by having more south facing fenestration than west facing fenestration. For those buildings affected by this requirement, this reduces envelope loads, energy usage and thereby costs.

Addendum bp to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This proposed change allows the use of control that provides automatic 50% auto on with the capability to manually activate the remaining 50% and has full auto-off.

Addendum bq to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This proposed language changes the requirements for retail space lighting which will make use of more recent lamp technology that is readily available.


These drafts are scheduled for a 45-day public review from July 19, 2009 to August 3, 2009:

Addendum f to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This is the third full public review of this addendum. It proposes requirements for high albedo roofs in climate zones 1 through 3.

Addendum am to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This is the second public review of this addendum. This independent substantive change to the first public review draft allows additional options for air leakage testing for fenestration and door and proposes values for air leakage of different types of windows and doors.

Addendum bf to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language provides performance requirements for air leakage of the opaque envelope.

Addendum bi to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language provides updated requirements for pipe insulation.

Addendum bk to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language distinguishes Subtype I and Subtype II motors. Addendum “aj” to ASHRAE Standard 90.1-2007 first incorporated these changes into Standard 90.1. This proposed language has different minimum efficiency requirements as called out in EISA 2007, Section 313 and clarified in the Federal Register.

Addendum bl to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The proposed language adds requirements for chillers with secondary coolants (glycol or brine). In additions, there are changes to footnote a to Table 6.8.1C in recognition of lower practical scope limits for positive displacement (both air- and water-cooled) and corrects for the lower limit introduced in Addendum M for centrifugal chillers.

Addendum bo to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- The following addendum is part of an ongoing effort to keep the requirements of Section 11 and Appendix G consistent with other addenda to the Standard. This addendum makes changes to Section 11 and G related to Addenda e, s, and u.

Addendum br to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings
- This proposed change adds an exterior zone 0 to cover very low light requirement areas.



For additional information or to download a copy of the public review drafts, please visit the ASHRAE website at www.ashrae.org/publicreviews