Artificial intelligence (AI) policy: ASHRAE prohibits the entry of content from any ASHRAE publication or related ASHRAE intellectual property (IP) into any AI tool, including but not limited to ChatGPT. Additionally, creating derivative works of ASHRAE IP using AI is also prohibited without express written permission from ASHRAE.

Close
logoShaping Tomorrow’s Built Environment Today

Interpretation For Standard 90.1-2010

Share This

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

pdf_icon.png Interpretation 90.1-2010-01 – April 9, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.4.4.1.3 Piping Insulation, relating to pipe insulation requirements in Table 6.8.3A and Table 6.8.3B.)

pdf_icon.png Interpretation 90.1-2010-02 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2010, Section 9.1.1, Exception (c), regarding the exception for health or safety lighting.)

pdf_icon.png Interpretation 90.1-2010-03 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.1, relating to datacenters in high school facilities.)

pdf_icon.png Interpretation 90.1-2010-04 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.1, relating to wireless telecommunications facilities.)

pdf_icon.png Interpretation 90.1-2010-05 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.4, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-06 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.1, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-07 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.4, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-08 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.3, relating to telecommunication equipment spaces.)

pdf_icon.png Interpretation 90.1-2010-09 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.3, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-10 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.3, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-11 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.2, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-12 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.2, relating to datacenters.)

pdf_icon.png Interpretation 90.1-2010-13 – January 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1 Economizers, Exception k.1, relating to wireless telecommunications facilities.)

pdf_icon.png Interpretation 90.1-2010-14 – June 25, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2010, Sections 6.4 and Table 6.8.1C relating to mandatory equipment efficiency requirements for chillers.)

pdf_icon.png Interpretation 90.1-2010-15 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.1.4, relating to Economizer Heating System Impact.)

pdf_icon.png Interpretation 90.1-2010-16 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 9.4.1.1, relating to automatic lighting shutoff controls for mechanical/electrical rooms containing high voltage electrical equipment.)

pdf_icon.png Interpretation 90.1-2010-17 – April 16, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 9.4.1.4(a), relating to Automatic Daylighting Controls for Primary Sidelighted Areas and the light sensor for the photocontrol.)

pdf_icon.png Interpretation 90.1-2010-18 – June 24, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Sections 9.2.2.3, 9.4.1.2, 9.4.1.6, 9.4.3 and 9.6.2 relating to the requirements for a separate or independent lighting control device.)

pdf_icon.png Interpretation 90.1-2010-19 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.2 relating to simultaneous heating and cooling.)

pdf_icon.png Interpretation 90.1-2010-20 – January 18, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 9.1.2 relating to lighting alterations and controls.)

pdf_icon.png Interpretation 90.1-2010-21 – January 20, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 6.5.2.2.1, relating to four-pipe common load systems.)

pdf_icon.png Interpretation 90.1-2010-22 – June 28, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Table 6.8.3A, relating to pipe insulation for PEX domestic hot water piping.)

pdf_icon.png Interpretation 90.1-2010-23 – January 24, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 8.4.2, relating to automatic receptacle control.)

pdf_icon.png Interpretation 90.1-2010-24 – April 18, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Sections 9.4.1.2 and 9.4.1.6, relating to lighting controls.)

pdf_icon.png Interpretation 90.1-2010-25 – June 27, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 5.4.3.4, regarding vestibules.)

pdf_icon.png Interpretation 90.1-2010-26 (Rev.) – January 24, 2016 (previous response approved October 22, 2015) (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section G3.1.1 and Table G3.1.1.A, regarding baseline HVAC system type and description.)

pdf_icon.png Interpretation 90.1-2010-27 – October 24, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 8.4.2, regarding automatic receptacle control.))

pdf_icon.png Interpretation 90.1-2010-28 – January 24, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 8.4.2, regarding automatic receptacle control.)

pdf_icon.png Interpretation 90.1-2010-29 – January 29, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Table G3.1 Section 6, regarding lighting controls.)

pdf_icon.png Interpretation 90.1-2010-30 – January 29, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section G3.1.1.3.2, regarding district cooling systems.)

pdf_icon.png Interpretation 90.1-2010-31 – January 28, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Sections G3.1.3.8, 3.1.3.9 and 3.1.3.10, regarding district cooling systems.)

pdf_icon.png Interpretation 90.1-2010-32 – April 20, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Sections G3.1.3.5, G3.1.3.10 and G3.1.3.11, regarding chilled water / hot water loop control and pump control.)

pdf_icon.png Interpretation 90.1-2010-33 – April 22, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 9.4.3, regarding the definition of “designed to be illuminated” for exterior surfaces.)

pdf_icon.png Interpretation 90.1-2010-34 – June 25, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Sections 6.5.3.1.1 and 6.5.3.1.2, regarding Nameplate Motor Horsepower requirements when no nameplate Motor Power is available on the motor.)

pdf_icon.png Interpretation 90.1 2010-35 – June 24, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 11.3.2 and Table 11.3.2A, regarding design conditions as it relates to supply air temperature setpoint in VAV system with parallel boxes.)

pdf_icon.png Interpretation 90.1-2010-36 – June 24, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Sections G3.1.3.12 and G3.1.3.14, regarding Supply Air Temperature Reset in Baseline Systems 6 & 8.)

pdf_icon.png  Interpretation 90.1-2010-37 –October 21, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section G3.1.1 and Tables G3.1.1A and G3.1.1B, regarding Baseline HVAC System selection.)

pdf_icon.png Interpretation 90.1-2010-38 – January 13, 2019 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Table 11.3.1.12, regarding miscellaneous loads, and Table 11.3.1.5, regarding building envelope.)

pdf_icon.png Interpretation 90.1-2010-39 – April 13, 2019 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section G3.1.1 and Table G3.1.1A, regarding Baseline HVAC System Type and Description.)

pdf_icon.png Interpretation 90.1-2010-40 – February 6, 2023 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2010, Section 3, regarding the definition of a conditioned space – cooled space.)

Close