These drafts are scheduled for a 30-day public review from June 29 to July 29:

1. BSR/ASHRAE/IES Addendum m to ANSI/ASHRAE/IES Standard 90.1- 2016, Energy Standard for Buildings Except LowRise Residential Buildings (Second Public Review)

The proposal has been revised to only allow a credit for buildings using the verification approach in order to help incentivize the more rigorous measurement and testing approach. To achieve this credit the Proposed Design air leakage has been set to 0.6 CFM/sq.ft, which is consistent with the value in Section 5.4.3.1.3(a)2.

2. BSR/ASHRAE/IES Addendum z to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (First Public Review)

The formulas in Section 11 and G3.1.2.1 for removing fan energy from baseline packaged heating and cooling efficiency ratings, removes more fan energy than allowed by Section 6 and Appendix G for large cooling equipment. This is corrected by capping the system capacity equations in Section 11 and providing a fixed baseline efficiency rating with the fan energy removed for each capacity range.

3. BSR/ASHRAE/IES Addendum ao to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (First Public Review)

This proposal revised fan product efficiency requirement and complements the fan power limitation in section 6.5.3.1.1.

4. BSR/ASHRAE/IES Addendum ap to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (First Public Review)

This proposal addresses HVAC systems with simultaneous heating and cooling require supply air temperature (SAT) reset except in climate zones 0A through 3A. In these climate zones, several system types can successfully dehumidify the outside air while still providing SAT reset and reducing reheat energy use.

5. BSR/ASHRAE/IES Addendum aq to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (First Public Review)

Lighting control requirements for lighting applications not covered in Table 9.6.2 require clarity and alignment to the mandatory lighting control provisions in section 9.4.1.

This addendum assures that each application listed plainly identifies which lighting control provisions apply to that specific lighting.

6. BSR/ASHRAE/IES Addendum ar to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (First Public Review)

During the development of the 2016 Standard, comments were received on Addendum di which were not incorporated at the time but were delayed until now so that the rest of Addendum di could be included in the 2016 version.

The changes below reflect some of those comments as well as changing the titles to a few of the new tables to make them consistent with other similar tables.

These drafts are scheduled for a 45-day public review from June 29 to Aug. 13:

1. BSR/ASHRAE/IES Addendum ai to ANSI/ASHRAE/IES Standard 90.1- 2016, Energy Standard for Buildings Except LowRise Residential Buildings (Second Public Review)

In this independent substantive change, several revisions have been made to addendum ai in response to comments. This ISC clarifies required verification and testing and the applicability of several defined terms.

2. BSR/ASHRAE/IES Addendum an to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (First Public Review)

In 2016, the U.S. Department of Energy published a final rule for energy conservations standards for commercial and industrial clean water pumps that will go into effect as of January 27, 2020.

This addendum provides a new table of information about the new efficiency requirements to users of ASHRAE 90.1. It also provides new definitions that are needed to accompany the table.

3. BSR/ASHRAE/IES Addendum as to ANSI/ASHRAE/IES Standard 90.1-2016, Energy Standard for Buildings Except Low-Rise Residential Buildings (FIrst Public Review)

The following appendix is proposed to be included in Standard 90.1 as informative resources to aid in the understanding and adoption of the commissioning and testing required in Sections 4.2.5, 5.9, 6.9, 7.9, 8.9, 9.9, 10.9, 11.2 (d), and G1.21(c).

These drafts are scheduled for a 30-day public review from July 6 to Aug. 8:

1. 1st Public Review of BSR/ASHRAE/USGBC/IES/ ICC Addendum f to ANSI/ASHRAE/USGBC/IES/ ICC Standard 189.1-2017, Standard for the Design of High-Performance Green Buildings Except LowRise Residential Buildings

This addendum replaces the current definition of “construction documents,” which references Standard 90.1, with a definition that is consistent with the 2015 International Green Construction Code.

2. 1st Public Review of BSR/ASHRAE/USGBC/IES/ ICC Addendum g to ANSI/ASHRAE/USGBC/IES/ ICC Standard 189.1-2017, Standard for the Design of High-Performance Green Buildings Except LowRise Residential Buildings

This addendum replaces the current defined term of “design professional” from Standard 90.1 with “registered design professional,” which is consistent with the terms used in the 2015 International Green Construction Code.

3. 1st Public Review of BSR/ASHRAE/USGBC/IES/ ICC Addendum h to ANSI/ASHRAE/USGBC/IES/ ICC Standard 189.1-2017, Standard for the Design of High-Performance Green Buildings Except LowRise Residential Buildings

This addendum clarifies that it is the alternate on-site sources of water or municipally reclaimed water are not required to be “acceptable” because it is given that anything not disallowed by an AHJ is acceptable.

These drafts are scheduled for a 30-day public review from July 13 to Aug. 12:

1. BSR/ASHRAE Addendum x to ANSI/ASHRAE Standard 62.1-2016, Ventilation for Acceptable Indoor Air Quality (First Public Review Draft)

The exhaust procedure in Standard 62.1-2016 contains requirements in notes. This proposed addendum relocates those requirements to the body of the standard.

The performance compliance path is modified to be consistent with the proposed changes to the Indoor Air Quality Procedure (IAQP) in Addendum aa to 62.1-2016. Table 6.5.2 (Airstreams or Sources) is added as relocated from Section 5.

2. BSR/ASHRAE Addendum ad to ANSI/ASHRAE Standard 62.1-2016, Ventilation for Acceptable Indoor Air Quality (First Public Review Draft)
               
Table 6.5 (Minimum Exhaust Rates) lists minimum exhaust rates for certain spaces in which contaminants generation have been deemed high enough that it contaminant cannot be diluted and thus need to be exhausted. However, the standard does not require these spaces to be at any pressure.

This proposed addendum adds the requirement for these spaces to be at a negative pressure with respect to adjacent spaces in order to minimize contaminants leakage to adjacent spaces.

These drafts are scheduled for a 45-day public review from July 13 to Aug. 27:

1. BSR/ASHRAE Addendum aa to ANSI/ASHRAE Standard 62.1-2016, Ventilation for Acceptable Indoor Air Quality (First Public Review Draft)

The indoor air quality procedure (IAQP) has a long history going back to the 1981 standard. It has flexibility. Weaknesses in current requirements for identifying the contaminants of concern, identifying concentration limits and exposure periods, and specifying the percentage of building occupants to be satisfied with perceived IAQ. Although the percentage of building occupants to be satisfied with perceived IAQ may be specified, and the standard requires that it be measured; this measurement usually would take place after occupancy so is often ignored or omitted. No measurement of any resulting concentration is currently required so the effectiveness of any design is not measured or verified.

This proposed addendum adds requirements for designing to specific targets. The target design compounds and mixtures are specifically identified.  

2. BSR/ASHRAE Addendum ab to ANSI/ASHRAE Standard 62.1-2016, Ventilation for Acceptable Indoor Air Quality (First Public Review Draft)

Indoor CO2 has had a prominent place in discussions of ventilation and IAQ for many years. The relevant issues include the impacts of CO2 on building occupants, the use of CO2 to control outdoor air ventilation rates, CO2  monitoring as an indicator of general IAQ conditions and the use of indoor CO2 to estimate building ventilation rates.

This proposed addendum adds a new Normative Appendix D, Estimation of Steady-State Indoor CO2 Concentrations Based on Per Person Ventilation Rates and Occupant Characteristics. The purpose is to describe the estimation of steady-state indoor carbon dioxide concentrations for a given per person outdoor air ventilation rate.

3. BSR/ASHRAE Addendum ac to ANSI/ASHRAE Standard 62.1-2016, Ventilation for Acceptable Indoor Air Quality (First Public Review Draft)

Informative Appendix C (Summary of Selected Air Quality Guidelines) in 62.1-2016 was deleted in a previous addendum.

This proposed addendum adds a new Informative Appendix C with content supportive of changes to the Indoor Air Quality Procedure (IAQP).

This draft is scheduled for a 30-day public review from July 6 to Aug. 8:

4th ISC Public Review of BSR/ASHRAE Addendum d to ANSI/ASHRAE Standard 15-2016, Safety Standard for Refrigeration Systems

This addendum modifies portions of Standard 15 to incorporate refrigerants with a 2L flammability classification as defined in ASHRAE Standard 34-2016. Addendum d proposes new requirements for high probability systems used for human comfort applications. This proposal does not change how ASHRAE Standard 15 deals with Class 2L refrigerants in industrial or commercial applications or machinery rooms. Those applications are expected to be handled in separate addenda.

This draft is scheduled for a 45-day public review from July 6 to Aug. 29:

3rd ISC Public Review of BSR/ASHRAE Addendum h to ANSI/ASHRAE Standard 15-2016, Safety Standard for Refrigeration Systems

This addendum modifies portions of Standard 15 to incorporate class 2L flammability classification as defined in ASHRAE Standard 34-2016.This addendum proposes to allow Group A2L refrigerants in applications requiring machinery rooms. This proposal does not change how ASHRAE Standard 15 deals with Group A2L refrigerants in high-probability systems for human comfort, industrial applications, or refrigerated rooms. Those topics are expected to be handled in separate addenda proposals.

This draft is scheduled for a 30-day public review from July 6 to Aug. 8:

1st Public Review of BSR/ASHRAE Addendum p to ANSI/ASHRAE Standard 34-2016, Designation and Safety Classification of Refrigerants

This addendum adds the azeotropic refrigerant blend R515B in Table 4-2 and Table D-2.

This draft is scheduled for a 45-day public review from July 13 to Aug. 27:

2nd Public Review of BSR/ASHRAE Standard 118.1-2012R, Method of Testing for Rating Commercial Gas, Electric and Oil Service Water Heating Equipment

This revision of Standard 118.1-2012 updates the scope to be consistent with the Department of Energy’s July 15, 2015, final rule that establishes new definitions for “commercial” and “residential duty commercial” water heaters and revises the definitions of heat pump water heaters. Test methods and calculations are revised for all heatpump water heaters.

The revision also updates Setting Outlet Water Temperature for Heating capacity for Type 1, Type II, Type III, Type IV, and Type V heaters, adds new Standby Loss test method and calculations for Type II and Type III Instantaneous Waters, and updates references.