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Interpretation for Standard 90.1-2007

NOTE:  All documents linked from this page are in PDF PDF-format. 

Interpretation 90.1-2007-1 - October 1, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.2, regarding exceptions to the mandatory provisions for air leakage for fenestration and doors.)

Interpretation 90.1-2007-02 - October 3, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 11.3.2, regarding HVAC system type and related performance parameters for the budget building design.)

Interpretation 90.1-2007-03 - October 3, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.2.2, regarding unmet load hours for the proposed design and baseline building designs.)

Interpretation 90.1-2007-04 - March 5, 2010 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.5.1 and Table 9.5.1, regarding building are type(s) and gross floor area used to calculate the interior lighting power allowance by the Building Area Method)

Interpretation 90.1-2007-05 - January 23, 2010 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections G3.1.1 and Tables G3.1 and G3.1.1.A, regarding how to apply Exceptions a, b, c, and d in determining Baseline System for large warehouses.)

Interpretation 90.1-2007-06 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.1.1, Exception (c), regarding the exception for health or safety lighting.)

Interpretation 90.1-2007-07 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 5.8.2.4, 5.8.2.5 and A8, regarding U-factor and Solar Heat Gain Coefficient for fenestration.)

Interpretation 90.1-2007-08 – October 21, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 9.4.1.1. and 9.4.1.2 and Appendix G (Table G3.1), regarding minimum lighting control requirements and Appendix G credit for lighting controls.)

Interpretation 90.1-2007-09 – January 22, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.1, regarding heat pump operation.)

Interpretation 90.1-2007-10 – March 30, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.4, regarding vestibules and Exceptions f and g.)

Interpretation 90.1-2007-11 – March 31, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Table G3.1.1A, regarding Baseline HVAC System Types.)

Interpretation 90.1-2007-12 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 11.1.2, Table 11.3.1, and Table G3.1, regarding baseline and proposed simulations for compliance.)

Interpretation 90.1-2007-13 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 9.5 and 9.6, Tables 9.5.1 and 9.6.1, regarding Baseline Lighting Power Density in Retail Banks.)

Interpretation 90.1-2007-14 – December 11, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.10, regarding Chilled-Water Pumps (System 7 & 8).)

Interpretation 90.1-2007-15 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1.A, regarding Baseline HVAC System Type.)

Interpretation 90.1-2007-16 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1A, regarding Baseline HVAC Systems for mixed use buildings.)

Interpretation 90.1-2007-17 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections G1.2, G3.1.1 and G3.1.2.10, regarding the modeling of HRV in Baseline HVAC Systems.)

Interpretation 90.1-2007-18 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 6.4.3.9,  regarding Ventilation Controls for High-Occupancy Areas.)

Interpretation 90.1-2007-19 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.2.2.3 Exception (a) and Section 9.6.2(a), regarding display or accent lighting in museums.)

Interpretation 90.1-2007-20 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.5, regarding facade lighting.)

Interpretation 90.1-2007-21 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.1.1 Exception c, regarding the exception where automatic lighting shutoff would endanger the safety or security of the room or building occupant(s).)

Interpretation 90.1-2007-22 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Appendix G, regarding building envelope values for the baseline case.)

Interpretation 90.1-2007-23 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 3, 8.4.1.1 and 8.4.1.2, regarding feeder conductor voltage drop.)

Interpretation 90.1-2007-24 – January 20, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5 and Tables G3.1 and 5.5, regarding Appendix G Modeling requirements for the proposed and baseline building.)