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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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.))
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)
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.)