Addenda from Standards 62.1, 189.1, More Open for Public Review
Public Reviews, April 2019
BSR/ASHRAE Standard 37- 2009 (RA), Methods of Testing for Rating Electrically Driven Unitary Air-Conditioning and Heat Pump Equipment
The following is under a 45-day public review from April 5 to May 20:
1st Public Review of BSR/ASHRAE Standard 37
This standard provides test methods and calculations for steady-state, cyclic, and part-load performance and methods for establishing seasonal performance for unitary air-conditioning and heat pump equipment, including single capacity, multiple capacity, variable capacity, unloading, or multiple compressors for ducted and ductless systems.
ANSI/ASHRAE Standard 62.1-2016, Ventilation for Acceptable Indoor Air Quality
The following are under a 30-day public review from March 22 to April 21:
The current standard contains exceptions for leakage from energy recovery systems. These exceptions have been misinterpreted and misapplied. The current definition of energy recovery ventilation systems is not used, and the term energy recovery device is not defined. The definition is therefore modified.
Since the original publication of Standard 62.1, ASHRAE published Standard 188-2015, Legionellosis: Risk Management for Building Water Systems. This proposed addendum requires advising the owner of the basic requirements of ASHRAE Standard 188.
The indoor air quality procedure has a long history going back to the 1981 standard. Weaknesses in the 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. This proposed addendum adds requirements for designing to specific targets. The target design compounds and mixtures are specifically identified.
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.
This proposed addendum adds a maximum indoor air dewpoint in mechanically cooled buildings. The 60°F indoor air dewpoint limit avoids the microbial growth problems frequently observed when humid outdoor air infiltrates into buildings. Humidity-related requirements of earlier versions of 62.1 were intended to address both mold growth and comfort concerns by limiting indoor humidity to 65%RH but did not explicitly extend to unoccupied hours when microbial growth often accelerates and because it did not establish a coincident dry bulb temperature and did not limit the mass of water vapor available for surface absorption during periods when cooling is intermittent to conserve energy.
The 2018 FGI (Facilities Guidelines Institute) guideline requires certain outpatient spaces to meet local ventilation codes and not ASHRAE/ASHE Standard 170: Neither one of the two mechanical model codes (IMC and UMC) has ventilation rates for these spaces. The IMC and UMC use ASHRAE Standard 62.1 as basis for their ventilation table. This proposed addendum adds ventilation rates for those spaces in order to bridge the gap with ASHRAE/ASHE Standard 170. It was developed in consultation with FGI in order to understand the activity in each space.
This proposed addendum removes language published in Addendum q to Standard 62.1-2016. It reinstates the option of using indirect measurement techniques in testing and balancing (TAB) of the ventilation system in startup.
The current standard is silent on producing ozone within HVAC equipment. In some countries, ozone generators are accepted as air cleaners. Ozone is harmful for health and exposure to ozone creates risk for a variety of symptoms and diseases associated with the respiratory tract. However, there is no consensus on the safe level of ozone. The current state of the science regarding the health effects of ozone strongly suggests that the use of air cleaners that emit ozone by design should not be permitted; the same information and advice is given by the U.S. EPA, among others. There are devices that emit ozone but at the same time reduce concentrations of other harmful contaminants.
This proposed addendum reduces the leakage of class 2 air into outdoor air from 10% to 5%. Leakage is measured as Exhaust Air Transfer Rate (EATR). From the AHRI-1060 database of air to air energy recovery: (1) Of the 670 plate and frame heat exchangers, 70 records show that the plates have exhaust air transfer ratio (EATR) The highest EATR = 3.7 (2) There are 1820 wheel records. 1040 of those are at 5% EATR or below. More than half of the certified products are below the threshold of 5% EATR. Further, fan orientation and pressure design can reduce or eliminate the EATR in the system design.
The current standard has no requirements for accuracy of CO2 sensors used for demand control ventilation. Various research projects show wide variation in accuracy and drift. This addendum proposes to adopt language from the 2013 California Title 24 Section 120.1(c)4.F.
When Addendum r to 62.1-2016 was published, the footnote to old Table 5.16.1 (Airstreams or Sources) did not transfer to new the Table 6.5.2 (Airstreams or Sources). This proposed addendum reinstates the note into Section 6.
Table 6.2.2.1 (Minimum Ventilation Rates in Breathing Zone) includes educational space types including Classroom (age 9 plus) and Lecture Classroom. The first of these does not have note H assigned and ventilation shut off is not allowed. Lecture Classroom has note H and ventilation shut off is allowed. However, for college buildings, it is not clear which of these space types should be assigned to the classroom spaces. This proposed addendum clarifies that college classrooms may use note H and have the ventilation shut off when they are unoccupied.
This proposed addendum updates some of the edition year and web references to the references listed in Section 9 and Informative Appendix J.
Many manufacturing occupancies do not use hazardous materials. This proposed addendum changes the air class for those spaces to air class 2. That allows the air to be recirculated to other similar manufacturing areas. Manufacturing spaces using hazardous materials will remain air class 3.
This proposed addendum modifies language in Informative Appendix E (Acceptable Mass Balance Equations for Use with the IAQ Procedure) to be consistent with the current IAQP. It also clarifies that the equations do not include any potential compounds added by the HVAC system.
This proposed addendum adds a reference to ASHRAE/ASHE Standard 170 and exception to direct users to use the ventilation rates in ASHRAE/ASHE Standard 170 for asepsis and odor control for healthcare spaces listed in ASHRAE/ASHE Standard 170.
The following are under a 45-day public review from March 22 to May 6:
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 proposed addendum replaces the calculation method in current Normative Appendix B2 (Separation of Exhaust Outlets and Outdoor Air Intakes) with a new method based upon ASHRAE RP-1635 (2016). This research was sponsored by ASHRAE TC 4.3. The purpose of this Research Project is to provide a simple, yet accurate procedure for calculating the minimum distance required between the outlet of an exhaust system and the outdoor air intake to a ventilation system to avoid re-entrainment of exhaust gases. The new procedure addresses the technical deficiencies in the simplified equations and tables that are currently in Standard 62.1-2016 and model building codes.
This proposed addendum clarifies and expands the values of zone air distribution effectiveness (Ez) in Table 6.2.2.1 and adds Normative Appendix X (Zone Air Distribution Effectiveness – Alternate Procedures) to provide a procedure for calculating zone air distribution effectiveness. Notes on Table 6.2.2.1 have also been removed and replaced with definitions or specific requirements within the language of the standard.
ANSI/ASHRAE Standard 62.2-2016, Ventilation and Acceptable Indoor Air Quality in Residential Buildings
The following is under a 30-day public review from March 22 to April 21:
BSR/ASHRAE Addendum t (Second Independent Substantive Change Public Review Draft)
This proposed change removes the potential for people to claim they would have installed a balanced system to avoid installing an unbalanced system. It also aligns the maximum airflow requirement that precludes the need to install a fan between new and existing homes.
BSR/ASHRAE Standard 118.2- 2006R, Method of Testing for Rating Residential Water Heaters and Residential-Duty Commercial Water Heaters
The following is under a 45-day public review from March 22 to May 6:
2nd Public Review of BSR/ASHRAE Standard 118.2- 2006R
This revision of Standard 118.2-2006 provides test procedures for rating the efficiency and hot water delivery capabilities of directly heated residential water heaters and residential-duty commercial water heaters.
ANSI/ASHRAE Standard 135-2016, BACnet - A Data Communication Protocol for Building Automation and Control Networks
The following is under a 30-day public review from March 29 to April 28:
2nd Public Review of BSR/ASHRAE Addendum bw
There is a need for a simple, universal data exchange format for the transfer of a time-series data between various platforms for operations such as analyzing the energy performance of buildings. This addendum adds Time Series Data Exchange Format.
The following is under a 45-day public review from March 29 to May 13:
1st Public Review of BSR/ASHRAE Addendum bx
This addendum adds Device Address Proxy functions, i.e., describes a mechanism by which a BACnet router can perform I-Am request proxying for any directly connected BACnet network.
ANSI/ASHRAE/ASHE Standard 170-2017, Ventilation of Health Care Facilities
The following are under a 30-day public review from March 22 to April 21:
This proposed addenda provides guidance to users of Standard 170 on how to incorporate air classifications into their design of Standard 170 spaces if they are required to utilize them in conjunction with ASHRAE Standard 62.1.
This proposed addendum adds requirements and language similar to those required in Section 5 (Systems and Equipment) of ASHRAE Standard 62.1. Requirements include: (1) Air intake separation distance table adapted for 170 requirements (2) Outdoor air verification requirements while operating (3) Measures to prevent vehicle combustion in parking garages from entering the building (4) Air balancing requirements.
A summary of the original changes: (1) Create a column indicating spaces where unoccupied turndown is acceptable (2) Incorporate Table 6.4 into Table 7.1 to remove confusion so that filter requirements will be uniformly applied (3) Revise space names to align with names appearing in FGI 2014 and indicating the appropriate sections in FGI 2014 where that space is referenced. Based on commenter feedback the following additional changes are proposed: (1) In Section 7.1(a)(3) the term “humidity” is changed to “design relative humidity” (2) Some spaces previously marked as not permitting unoccupied turndown are being changed to permit it (3) Some of the proposed new spaces would not be added to the standard (4) Addendum a are proposed changes to the filter column created in this addendum and represents and updated approach to filtration in healthcare facilities.
The following is under a 45-day public review from March 22 to May 6:
1st Public Review of BSR/ASHRAE/ASHE Addendum b
This proposed addendum removes several spaces from Tables 7.1, 8.1, and 9.1 based on those spaces being adequately addressed in other standards. The addendum also proposes to modify minimum total air change requirements for several spaces based on the results of CO-RP 3.
ANSI/ ASHRAE/ICC/USGBC/IES 189.1-2017, Standard for the Design of High Performance Green Buildings Except Low-Rise Residential Buildings
The following are under a 45-day public review from March 8 to April 22:
This addendum identifies a number of requirements from Section 5 of Standard 189.1 as being appropriate for local jurisdictions to consider excluding from their adopting ordinances. A new Table 4.2 is added which lists these requirements in a format intended to simplify review by the jurisdiction.
This addendum identifies a number of requirements from Section 7 of Standard 189.1 as being appropriate for local jurisdictions to consider excluding from their adopting ordinances. A new Table 4.2 is added which lists these requirements in a format intended to simplify review by the jurisdiction.
This addendum updates the source energy conversion factors in Table 7.5.3 and expands the list for eGRID subregions. These factors represent the energy required to extract, process, and deliver the fuel to the building per unit of energy in the fuel.
This addendum updates the CO2e emission factors in Table 7.5.2, expanding the list to add values for eGRID subregions. The table is also moved to Section 7.5.3 in expectation of being combined with source energy factor updates being added separately by Addendum z.
ANSI/ ASHRAE/ASHE Standard 189.3-2017, Design, Construction and Operation of Sustainable High Performance Health Care Facilities
The following is under a 30-day public review from March 29 to April 28:
1st Public Review of Addendum a
This proposed addendum reflects the efforts of SSPC 189.3 to identify and revise the standard as necessary to align with the most current edition of the 2018 IGCC powered by 189.1-2017, Standard for the Design of High Performance, Green Buildings Except Low-Rise Residential Buildings.
BSR/ASHRAE Standard 195- 2013R, Method of Test for Rating Air Terminal Unit Controls
The following is under a 45-day public review from March 22 to May 6:
1st Public Review of BSR/ASHRAE Standard 195- 2013R
This revision of Standard 195-2013 specifies instrumentation and facilities, test installation methods, and procedures for determining the accuracy and stability of airflow control systems for terminal units at various airflow setpoints.
BSR/ASHRAE Standard 216P, Methods of Test for Determining Application Data of Overhead Circulator Fans
The following is under a 45-day public review from April 12 to May 27:
2nd Public Review of BSR/ASHRAE Standard 216P
The purpose of ASHRAE Standard 216P is to specify the instrumentation, facilities, test installation methods, and procedures to determine circulator fan application data for occupant thermal comfort in a space.
ASHRAE Guideline 0-2013, The Commissioning Process
The following is under a 30-day public review from March 22 to April 21:
1st Public Review of Addendum a
This proposed addendum to Guideline 0 recognizes and address changes in industry terminology resulting from the evolution of whole-building commissioning into the life cycle and sustainable facilities measurement and verification processes. Additionally, this addendum addresses achieving consistency of the defined commissioning terms between Guideline 0 and ANSI/ASHRAE/IES Standard 202, Commissioning Process for Systems and Buildings.
Guideline 27P, Measurement Procedures for Gaseous Contaminants in Commercial Buildings
The following is under a 45-day public review from March 8 to April 22:
Guideline 27P provides recommended procedures for effective measurement of airborne gas and vapor concentrations inside commercial buildings. Its goal is to provide consistent procedures to follow so field measurements of contaminant concentrations are accurate and reproducible, avoiding typical problems that may cause unreliable or inconsistent results, while recommending sample acquisition techniques, sampling locations in equipment and spaces, sampling requirements, and criteria for data analysis.
ASHRAE Guideline 29-2009R, Guideline for the Risk Management of Public Health and Safety in Buildings
The following is under a 60-day public review from Feb. 22 to April 23:
1st Public Review of ASHRAE Guideline 29-2009R
The purpose of Guideline 29-2009R is to provide guidance for the practical evaluation, design and implementation of measures to reduce multiple risks in new and existing buildings.
Constructive comments are invited for the following public review drafts, which can be accessed on ASHRAE’s website.
All activity for reviewing and commenting on public review drafts can be accomplished completely online. To obtain a paper copy of any Public Review Draft contact:
ASHRAE, Inc.
Attn: Standards Public Review
1791 Tullie Circle NE
Atlanta, GA 30329-2305
or email standards.section@ashrae.org.
Paper copies are available for $35/copy if 100 pages or fewer and $45 if more than 100 pages.