• INFORMATIVE APPENDIXK
    ADDENDA DESCRIPTION INFORMATION

    (This appendix is not part of this code. It is merely informative and does not contain requirements necessary for conformance to the code. It has not been processed according to the ANSI requirements for a code and may contain material that has not been subject to public review or a consensus process. Unresolved objectors on informative material are not offered the right to appeal at ASHRAE or ANSI.)

    ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2017 incorporates ANSI/ASHRAE/USGBC/IES Standard 189.1-2014 and Addenda a, b, c, d, e, f, g, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, aa, ab, ac, ad, ae, ag, ah, ai, aj, ak, al, am, ap, aq, as, au, av, aw, ax, ay, az, ba, bb, bd, be, bh, bi, bj, bk, bl, bn, bo, bp, bq, br, bs, bt, bu, bv, bw, bx, by, bz, cd, ce, cf, cg, ch, cj, and cl to ANSI/ASHRAE/USGBC/IES Standard 189.1-2014. Table K101.1 (J-1) lists each addendum and describes the way in which the code is affected by the change. It also lists the ASHRAE, and ANSI approval dates for each addendum.

    TABLE K101.1 (TABLE J-1)

    ADDENDA TO ANSI/ASHRAE/USGBC/IES STANDARD 189.1-2014

    ADDENDUMSECTIONS AFFECTEDDESCRIPTION OF CHANGES*ASHRAE STANDARDS COMMITTEE APPROVALCOSPONSOR APPROVAL (USGBC, IES, ICC)ASHRAE BOD APPROVALANSI APPROVAL
    aSection 701.4.3.2 (7.4.3.2)This addendum clarifies the location of a CO2 sensor to determine the outdoor air concentration.Jan. 23, 2016Jan. 11, 2016 Dec. 31, 2015 Dec. 22, 2015Jan. 27, 2016Jan. 28, 2016
    bSection 701.3.4 (7.3.4)This addendum replaces the mandatory requirement for peak load reduction in Section 701.3.4 (7.3.4) that was introduced in addendum ce to the code.June 27, 2015May 12, 2015 June 29, 2015 N/AJuly 1, 2015July 2, 2015
    cSection 1001.3.1.2 (10.3.1.2) and Chapter 11 (Section 11)This addendum is intended to incorporate ANSI/ASHRAE/IES Standard 202, Commissioning Process for Buildings and Systems, into Standard 189.1, thereby basing commissioning on an industry standard.Oct. 13, 2015Sept. 30, 2015 Sept. 28, 2015 Oct. 8, 2015Oct. 19, 2015Nov. 2, 2015
    dSection 701.4.6.1.1 (7.4.6.1.1)This addendum corrects and clarifies a potentially confusing sentence in the standard that could cause some designers to believe that the bonus lighting power control factors from ASHRAE Standard 90.1, Table 9.6.3, cannot be used in Standard 189.1.Jan. 23, 2016Jan. 11, 2016 Dec. 31, 2015 Dec. 22, 2015Jan. 27, 2016Jan. 28, 2016
    eSections 301.2 (3.2), 701.4.6.1.1 (7.4.6.1.1), 1001.3.1.1.3 (10.3.1.1.3), and 1001.3.1.2.4 (10.3.1.2.4)This new Section 701.4.6.1.1(d) [7.4.6.1.1(d)] to Standard 189.1 provides control credits for institutional tuning that are in additions to the control factors that already exist in Standard 90.1-2013, Section 9.6.3.Jan. 23, 2016Jan. 11, 2016 Dec. 31, 2015 Dec. 22, 2015Jan. 27, 2016Jan. 28, 2016
    fTable 601.3.2.1 (6.3.2.1)This addendum modifies Table 601.3.2.1 (6.3.2.1) to make it consistent with the text of Section 601.3.2.1(b) [6.3.2.1(b)].June 25, 2016July 4, 2016 June 27, 2016 June 9, 2016June 29, 2016June 30, 2016
    gSections 801.3.1.4 (8.3.1.4) and 1001.3.2.1.4.7 (10.3.2.1.4.7)This addendum to Standard 189.1 provides a higher level of indoor moisture control than is currently required by reference to Standard 62.1.Jan. 23, 2016Jan. 11, 2016 Dec. 31, 2015 Dec. 22, 2015Jan. 27, 2016Jan. 28, 2016
    iSections 501.3.5.3 (5.3.5.3), 501.3.5.5 (5.3.5.5), 1001.3.2.1.1 (10.3.2.1.1), and Chapter 11 (Section 11)This addendum reorganizes the roof heat island mitigation section and adds new provisions for vegetated terrace and roofing systems.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    jSections 501.3.1.2 (5.3.1.2)This addendum clarifies the exceptions contained under Section 501.3.1.2 (5.3.1.2), “Prohibited Development Activity,” which includes provisions for fish/wildlife habitat conservation areas and wetlands.Aug. 24, 2016July 4, 2016 June 27, 2016 June 9, 2016Aug. 29, 2016Aug. 30, 2016
    kSection 701.4.2.1 (7.4.2.1)This addendum is based in part on a comparison of 189.1 with the 2015 International Green Construction Code (IgCC). The change from 10% to 5% in the U-, C and F- factors and in the SHGC is based on it being more practical to design and build, while having only a limited impact on energy use.Feb. 1, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017March 2, 2017
    lChapter 9 (Section 9) and Section 901.1 (9.1)This addendum revises the title and scope of Chapter 9 (Section 9) in order to improve clarity and more accurately describe the content of the section.Feb. 1, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017March 2, 2017
    mSection 501.3.7.1.1 (5.3.7.1.1)This addendum augments provisions for connection of on-site walkways and bicycle paths to street sidewalks and bicycle paths.Aug. 24, 2016July 4, 2016 June 27, 2016 June 9, 2016Aug. 29, 2016Aug. 30, 2016
    nSection 901.3.5 (9.3.5)This addendum clarifies footnote b to Table 7.5.2A of Standard 189.1-2014. This footnote provides a method to adjust the percent reduction for buildings with unreg ulated energy cost exceeding 35% of the total energy cost.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    oChapters 1 and 2 (Sections 1 and 2)This addendum revises the existing purpose and scope of the standard to clarify the intended purposes of the standard and its application and to better reflect revisions to the standard that are being considered by the committee.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2017May 20, 2017
    pChapter 3 (Section 3) and Section 601.3.2.1 (6.3.2.1)This addendum adds requirements for water-bottle filling stations, which are intended to improve water efficiency and sanitation of public drinking water and reduce the environmental effects of plastic bottles.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    qSections 401.1.4 (4.1.4), 501.3.5.3 (5.3.5.3), 701.4.2.1 (7.4.2.1), 701.4.2.5 (7.4.2.5), 701.4.3.7.2 (7.4.3.7.2), and Chapter 11 (Section 11); Tables 701.4.3.3 (7.4.3.3) and 801.4.1.2 (8.4.1.2); Appendix AThis addendum Standard 189.1 was developed in response to the update of ASHRAE Standard 169-2013, Climatic Data for Building Design Standards. Standard 189.1 now references ANSI/ASHRAE/IES Standard 90.1 and Standard 169 for climatic data and includes criteria for Climate Zone 0.Aug. 24, 2016July 4, 2016 June 27, 2016 June 9, 2016Aug. 29, 2016Aug. 30, 2016
    rSection 701.4.3.3 (7.4.3.3)This addendum lowers the threshold for duct leakage testing to include 2 in. pressure class ducts, which are common upstream of VAV boxes.June 28, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017Aug. 1, 2017
    sChapter 6 (Section 6)This addendum removes the performance option for water use and moves the prescriptive option into the mandatory section.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 20, 2017
    tSections 601.3.4 (6.3.4) and 601.3.5 (6.3.5)This addendum adds new requirements for reverse osmosis and on-site reclaim water systems in order reduce the likelihood of excessive water use due to poor design of water treatment and filter systems.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    uSection 601.3.4 (6.3.4)This addendum adds new requirements for water softeners to reduce water consumption, given the impact of their design and efficiency on water discharge water rates.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    vSections 301.2 (3.2), 501.3.1.1 (5.3.1.1), and Chapter 11 (Section 11)This addendum revises two paragraphs in Section 501.3.1.1 (5.3.1.1), “Allowable Sites.” The revisions reference ASTM standards that provide more precision than the requirements that currently exist in Standard 189.1.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    wSection 701.5.2 (7.5.2)This addendum updates Performance Option A of Section 701.5.2 (7.5.2) to be consistent with recent changes to the Performance Rating Method as published in Standard 90.1-2016.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    xSection 701.5 (7.5); Appendix CThis addendum deletes Performance Path B and sections of Appendix C, motivated in part by changes to the Performance Rating Method published in Standard 90.1-2016, which made significant structural changes to the performance compliance path on which the requirements in Standard 189.1 are heavily based.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    ySections 1001.3.2.1 (10.3.2.1), 1001.3.2.1.4 (10.3.2.1.4) and 1001.3.2.1.5 (10.3.2.1.5); Appendix GThis addendum adds a requirement for an Indoor Environmental Quality (IEQ) occupant satisfaction survey to be included in the postoccupancy plan for operation.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    zTables 701.4.6.1A (7.4.6.1A) and 701.4.6.1B (7.4.6.1B)This addendum revises the lighting power density (LPD) requirements in Standard 189.1 to include parking structures.Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    aaSections 301.2 (3.2), 701.4.1.1 (7.4.1.1), and Chapter 11 (Section 11)This addendum revises current requirements for renewable energy systems and related exceptions. It requires that renewable energy certificates (RECs) be retained and retired by the building owner for all compliance options.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug. 1, 2017Aug. 23, 2017
    abSection 701.4.3.7 (7.4.3.7)This addendum adds SI values to the requirements for kitchen hood exhausts. The SI values were extracted from Standard 90.1-2016, Table 6.5.7.2.2, which has the same table content as Table 701.4.3.7 (7.4.3.7).Jan. 28, 2017Feb. 11, 2017 Jan. 31, 2017 Jan. 12, 2017Feb. 1, 2017Feb. 13, 2017
    acSection 701.3.4 (7.3.4)This addendum deletes the existing Section 701.3.4 (7.3.4) and replaces with new text that is based in part on concepts that are included in the 2015 International Green Construction Code.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    adSection 701.4.2.5 (7.4.2.5) and 801.4.1.3 (8.4.1.3)This addendum changes the requirements for permanent projections (such as balco nies, overhangs, or shading devices). It deletes the prescriptive requirements for permanent projections in Climate Zones 4A and 5, retaining the requirements in Climate Zones 0 through 3, 4B, and 4C.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    aeSection 501.3.8 (5.3.8)This addendum adds a new Section 501.3.8 (5.3.8), which addresses plans for the treatment of waste materials originating from the development of a building project site.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    agSection 701.4.2 (7.4.2)This addendum makes creates a new definition for plants that are suitable for inclusion in this code. It replaces “adapted plants” in Chapter 6 (Section 6) to better define the desired vegetation and to avoid conflicting with the term’s use in Chapter 5 (Section 5).June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    ahTable 701.5.3 (7.5.3)This addendum revises the lighting power density (LPD) requirements in Standard 189.1 for exterior parking areas using the same methodology employed in Standard 90.1 but targeting a high level of performance.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    aiSections 701.4.2.4 (7.4.2.4), 1001.3.1.2.4 (10.3.1.2.4), and Chapter 11 (Section 11)This addendum adds requirements for testing, installing, and commissioning air curtains in building entrances. These requirements are intended to ensure that air curtains function and operate as intended.June 28, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017Aug. 1, 2017
    ajSections 701.4.6.4 (7.4.6.4) and 701.4.6.5 (7.4.6.5)This addendum revises the bilevel motion control requirements to better align with the requirements of Standard 90.1-2016, which increased the lighting power reduction from 30% to 50% for signs and most exterior lighting (except façade and landscape lighting) after business hours.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    akSections 901.5 (9.5) and Chapter 11 (Section 11)This addendum revises Section 901.5 (9.5) to reflect advancements in the imple mentation of life-cycle assessment and to reference ASTM E2921, Standard Practice for Minimum Criteria for Comparing Whole Building Life Cycle Assessments for Use with Building Codes and Rating Systems.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug 1, 2017Aug. 23, 2017
    alSection 501.3.7.3 (5.3.7.3)This addendum modifies the provisions for electric-vehicle charging infrastructure to include an additional option to provide electric conduit from electric service panels to parking lot spaces during new-building constructionJuly 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017
    amSection 501.3.5.3 (5.3.5.3)This addendum modifies the roof heat island mitigation section that was previously changed via addendum i. The only change is to adjust the steep-slope roof SRI from 15 to 25, which matches the 2015 IgCC and is slightly less that the LEED V4 SRI of 32.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    apChapter 11 (Section 11) and Appendix GThis addendum to Standard 189.1-2014 updates the normative references in Chapter 11 (Section 11) and the informative references in Appendix G.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    aqChapters 3 and 10 (Sections 3 and 10)This addendum updates requirements in Standard 189.1 for functional and performance testing and for building systems commissioning. These changes are intended to harmonize the standard with requirements and methods included in the 2015 International Green Construction Code and to update the standard with respect to trends and terminology in the evolving commissioning industry.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug 1, 2017Aug. 23, 2017
    asSections 301.2 (3.2), 301.3 (3.3), 801.3.3 (8.3.3), Chapters 10 and 11 (Sections 10 and 11)This addendum updates the acoustical requirements of Standard 189.1. Its development included comparison with the International Green Construction Code, Acoustical Society of America, Facilities Guideline Institute, and LEED, and benefited from the participation of ASHRAE TC 2.6, Sound and Vibration Control.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug 1, 2017Sept. 12, 2017
    auSections 301.2 (3.2), Chapters 6 and 11 (Sections 6 and 11)This addendum provides additional requirements for irrigation systems to improve water use efficiency, based in part on consideration of requirements included in the IgCC.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    avSection 701.4.6.1.1 (7.4.6.1.1); Tables 701.4.6.1A (7.4.6.1A) and 701.4.6.1B (7.4.6.1B)This addendum simplifies the application of lighting power allowances in ASHRAE/USGBC/IES Standard 189.1 and increases their stringency, while maintaining the same provisions for illuminance.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    awSections 301.2 (3.2), 801.3.8 (8.3.8) and 801.3.9 (8.3.9); Table 801.4.1.2A (8.4.1.2A)This addendum adds two new mandatory requirements to Chapter 8 (Section 8), “Indoor Environmental Quality,” with regard to occupant control of operable methods of glare control and of automatic daylight-responsive controls.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug 1, 2017Aug. 23, 2017
    axSection 601.4.3 (6.4.3)This addendum modifies the existing requirements on water features by focusing on those circumstances, malfunctioning automatic water refilling values, which are most likely to use excessive water.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    aySections 601.4.4 (6.4.4)This addendum adds requirements for dual plumbing in new buildings so that nonpotable waters (when available) can be used to flush toilets and urinals.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug 1, 2017Aug. 23, 2017
    azSection 501.3.3.2 (5.3.3.2)This addendum adds exceptions to the calculation of the area of greenfields that must consist of biodiverse plantings other than turfgrass.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017Aug 1, 2017Aug. 23, 2017
    baSections 801.3 (8.3) and Chapter 11 (Section 11)This addendum updates the broad reference in Section 801.3.1 (8.3.1) to a wide range of requirements in both Standard 62.1 and Standard 170 to more narrowly cite the specific sections of those standards that are relevant to Standard 189.1.April 6, 2017April 13, 2017 March 28, 2017 March 31, 2017April 17, 2013May 1, 2017
    bbSection 701.3.3.2 (7.3.3.2)This addendum adds a new requirement to Chapter 7 (Section 7) to display energy use in support of existing requirements in Section 1001.3.2.1.3.2 (10.3.2.1.3.2), “Track and Assess Energy Consumption.”June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bdTable 701.5.2B (7.5.2B)This addendum updates carbon dioxide equivalent values in Table 701.5.2B (7.5.2B).July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017
    beSections 801.3.1 (8.3.1) and Chapter 11 (Section 11)This addendum requires that the products of combustion from any equipment or system that is permanently installed indoors be vented to the outside.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017Aug. 3, 2017
    bhAppendix B; Table B101.1 (B-1)This addendum revises the requirements in ASHRAE/USGBC/IES Standard 189.1, Table B-1, Electrical-Operated Unitary Air Conditioners and Condensing Units, to adjust the efficiency metrics for industry improvements for these products.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    biChapter 3 (Section 3); Appendix B; Table B101.5 (B-5)This addendum modifies Table B101.5 (B-5), which defines the requirements for single packaged vertical air conditioners, single packaged vertical heat pumps, room air conditioners, and room air-conditioner heat pumps.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bjAppendix B; Table B101.6 (B-6)This addendum updates requirements in ASHRAE/USGBC/IES Standard 189.1, Table B-6, “Warm Air Furnace and Combination Warm Air Furnaces/Air-Conditioning Units, Warm Air Duct Furnaces, and Unit Heaters.”June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bkAppendix B; Tables B101.12 (B-12) and B101.13 (B-13)This addendum modifies Tables B101.12 (B-12), Electrically Operated Variable-Refrigerant-Flow (VRF) Air Conditioners Minimum Efficiency, and Table B101.13 (B-13), Electrically Operated Variable-Refrigerant-Flow (VRF) Heat-Pump Air Conditioners Minimum Efficiency.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    blAppendix B; Table B101.9 (B-9)This addendum updates the efficiency requirements in Table B101.9 (B-9) to reflect changes in efficiency metrics.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bnSection 801.3 (8.3)This addendum updates the soil-gas control requirements in Chapter 8 (Section 8) to increase the protection of building occupants against radon exposure, specifying the key elements of effective soil-gas control.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017
    boChapters 3 and 11 (Sections 3 and 11)This addendum broadens and simplifies the existing definition of “sidelighting effective aperture” in ASHRAE/USGBC/IES Standard 189.1 in order to clarify its application in the prescriptive daylighting requirements in Section 801.4.1.2 (8.4.1.2).June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bpSections 801.4.2.1 (8.4.2.1) and Chapter 11 (Section 11)This addendum updates existing requirements for the emissions or VOC content in adhesives and sealants by updating references, adding accreditation requirements for testing laboratories and clarifying language related to the VOC content requirements.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bqSections 801.4.4.2 (8.4.4.2) and Chapter 11 (Section 11)This addendum updates the existing requirements for the emissions or VOC content for paints and coating materials by adding accreditation requirements for testing laboratories, clarifying the language related to the VOC contents requirements, and updating references.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    brSections 801.4.2.3 (8.4.2.3) and Chapter 11 (Section 11)This addendum updates the existing requirements for the emissions for floor covering materials by adding accreditation requirements for testing laboratories, updating product categories to be consistent with CDPH/EHLB v1.1, adding a list of materials that are deemed to comply, and updating references.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bsSections 801.4.2.6 (8.4.2.6) and Chapter 11 (Section 11)This addendum updates the existing requirements for the emissions for ceiling and wall assemblies by modifying the list of materials covered, adding a separate subsection on insulation, adding a list of materials that are deemed to comply, adding accreditation requirements for testing laboratories, and updating references.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    btSections 701.3.1.1 (7.3.1.1), 1001.3.1.2.5 (10.3.1.2.5), and Chapter 11 (Section 11)This addendum updates requirements for building envelope airtightness testing in ASHRAE/USGBC/IES Standard 189.1 based on changes in ANSI/ASHRAE/IES Standard 90.1-2016.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    buAppendix B; Table B101.2 (B-2)This addendum revises the efficiency requirements in ASHRAE/USGBC/IES Standard 189.1, Table B-2, Electrically Operated Unitary and Applied Heat Pumps Minimum Efficiency Requirements (I-P), to adjust the efficiency metrics for industry improvements for these products.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bvAppendix B; Table B101.3 (B-3)This addendum updates the centrifugal chiller requirement for Kadj, which currently exists as a footnote to Table B101.3 (B-3), to reflect changes to AHRI Standards 550/590 and 551/591. The revised requirement is in alignment with ANSI/ASHRAE/IES Standard 90.1.June 28, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    bwAppendix B; Table B101.4 (B-4)This addendum updates the requirements in Table B101.4 (B-4) for electrically operated packaged-terminal air conditioners and packaged-terminal heat pumps.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017
    bxAppendix B; Table B101.8 (B-8)This addendum makes changes to Table B101.8 (B-8), “Performance Requirements for Heat-Rejection Equipment,” to update some of the efficiency requirements to align with changes in the industry.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017
    bySection 801.3.1.4 (8.3.1.4)This addendum provides a higher level of indoor moisture control (primarily to reduce the likelihood of microbial growth on interior surfaces and within the building envelope) than is currently required by Standard 189.1’s reference to Standard 62.1.June 27, 2015May 12, 2015 June 29, 2015 N/AJuly 1, 2015July 2, 2015
    bzAppendix B; Tables B101.3 (B-3), B101.10 (B-10), B101.14 (B-14) and B101.15 (B-15)This addendum updates tables for Water-Chilling Packages, Commercial Refrigerator and Freezers, Commercial Refrigeration Minimum Efficiency Requirements and low-Voltage Dry-Type Distribution Transformers in Appendix B.June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    cdSections 301.2 (3.2), 801.4.1 (8.4.1), 801.5.1 (8.5.1) and Chapter 11 (Section 11)This addendum revises the daylight requirements in Section 801.4 (8.4), “Prescriptive Compliance Path,” and Section 801.5 (8.5), “Performance Option.”June 23, 2017June 14, 2017 June 13, 2017 June 12, 2017June 28, 2017June 29, 2017
    ceChapter 7 (Section 7)This addendum revises contains modifications to the mandatory and prescriptive requirements for peak load reduction in Chapter 7 (Section 7). The existing prescriptive requirement in Section 701.4.5.1 (7.4.5.1) is deleted, and a mandatory requirement is added in Section 701.3.4 (7.3.4).June 27, 2015May 12, 2015 June 29, 2015 N/AJuly 1, 2015July 2, 2015
    cfAppendix EThis addendum updates Informative Appendix E to make it consistent with changes approved by addendum k, which changed the building envelope requirements in Section 701.4.2.1 (7.4.2.1). It also adds tables for Climate Zone 0, consistent with addendum q.May 22, 2017May 15, 2017 May 12, 2017 May 11, 2017N/AN/A
    cgAppendix IThis addendum adds a new informative appendix to aid in understanding and adoption of the functional and performance testing (FPT) and commissioning (Cx) processes of Chapter 10 (Section 10).May 22, 2017May 15, 2017 May 12, 2017 May 11, 2017N/AN/A
    chChapters 5 and 11 (Sections 5 and 11)This addendum to ASHRAE Standard 189.1 contains updates to references.July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017
    cjAppendix HThis addendum adds an informative appendix for use in correlating the prescriptive energy path provisions of this standard with those of the International Energy Conservation Code (IECC).May 22, 2017May 15, 2017 May 12, 2017 May 11, 2017N/AN/A
    clTable 701.5.2A (7.5.2A)This addendum updates Table 701.5.2A (7.5.2A) to provide consistency with changes to ASHRAE Standard 90.1-2016, which is referenced by Standard 189.1, and to changes in the stringency of the prescriptive requirements in Standard 189.1, Chapter 7 (Section 7).July 24, 2017July 24, 2017 July 26, 2017 July 24, 2017July 26, 2017July 27, 2017

    * These descriptions may not be complete and are provided for information only.

    NOTE
    Approved addenda, errata, or interpretations for this standard can be downloaded free of charge from the ASHRAE website at http://www.ashrae.org/technology.
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