Public Reviews, February 2020
Addenda for Standard 90.1-2019, More Up for Public Review
From eSociety, February 2020
The following is under a 45-day public review from January 17 to March 2:
Standard 30-2019, Method of Testing Liquid Chillers
1st Public Review of BSR/ASHRAE Addendum a:
This addendum updates capacity and condenser definitions to align with the rest of the standard, adds enthalpy measurement and capacity calculations, updates thermal input power calculations, clarifies existing pressure drop correction calculation, adds requirement to test based on operating mode setpoints defined prior to testing, and simplifies existing test date collection and test report requirements.
The following is under a 45-day public review from January 17 to March 2:
1st Public Review of BSR/ASHRAE Standard 225-202x, Methods for Performance Testing Centrifugal Refrigerant Compressors and Condensing Units
ASHRAE Standard 225-202x prescribes methods for obtaining performance data relating to centrifugal compressors or compressor units. The intent of this standard is to provide uniform test methods to measure the performance of this equipment by addressing the test and instrumentation requirements, test procedures, data to be recorded, and calculations to generate and confirm valid test results.
The following is under a 30-day Public Review from January 24 to February 23:
3rd ISC Public Review of BSR/ASHRAE Standard 216-202x, Methods of Test for Determining Application Data of Overhead Circulator Fans
The purpose of ASHRAE Standard 216-202x is to specify the instrumentation, facilities, test installation methods, and procedures to determine circulator fan application data for occupant thermal comfort in a space.
The following is under a 30-day Public Review from February 7 to March 8:
ANSI/ASHRAE/IES Standard 90.1-2019, Energy Standard for Buildings Except Low-Rise Residential Buildings Demand Controlled
1st Public Review of BSR/ASHRAE/IES Addendum b:
Demand Controlled Ventilation (DCV) should be required when cost-effective for occupied spaces considering the required outside air for ventilation required based on number of people in the space, varying space sizes, use of energy recovery equipment, and climate zone. The current requirement has a threshold based only on space size and space occupancy. This proposal seeks to more effectively align DCV requirements with all those variables to produce a cost-effective solution.
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1st Public Review of BSR/ASHRAE/IES Addendum c:
Section 6.4.3.3 includes an exception for off-hour controls in small units. However, this negates the requirements in 6.4.3.3.1 for residential spaces that typically have small HVAC units. The controls for hotel and motel guest rooms have been shown to be cost effective and less costly and less complex controls for apartments will also be cost-effective and are readily available. These programmable thermostats are required under residential energy codes for residential spaces in buildings three stories and lower. An exception is made here to allow them in other spaces.
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2nd Public Review ISC of BSR/ASHRAE/IES Addendum cr:
This second public review draft of Addendum cr modifies the original addendum to clarify that these envelope requirements only apply to new buildings.
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2nd Public Review ISC of BSR/ASHRAE/IES Addendum da:
The changes to section G2.2 in this addendum are made in response to the public comments that were received during the first public review.
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The following is under a 45-day Public Review from February 7 to March 23:
ANSI/ASHRAE/IES Standard 90.1-2019, Energy Standard for Buildings Except Low-Rise Residential Buildings
1st Public Review of BSR/ASHRAE/IES Addendum a:
This proposal establishes minimum fan efficacy requirements for low-power ventilation fans. Additionally, the proposal establishes Standard 62.2 as the reference for determining the minimum ventilation rates for non-transient dwelling units, in accordance with the scope of 62.2 and 62.1.
The following is under a 30-day Public Review from February 14 to March 15:
ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2017, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings
2nd Public Review ISC of BSR/ASHRAE/ICC/USGBC/IES Addendum ab:
This independent substantive change to Addendum ab modifies 8.3.7 to expand view requirements and the list of spaces to which they apply.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum ap:
Addendum ap to 189.1-2017 removes the portion of 5.3.6 that referred to 90.1 lighting requirements, which are already referenced in Section 7.4.6, then simplifies section numbering accordingly.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum aq:
Addendum aq to 189.1-2017 revises the definition of native plants, as well as the requirements for maintaining native plants on-site. The proposal includes multiple options for meeting the new requirements, in order to provide flexibility for cases in which successful alternatives to native plants have been identified.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum at:
Addendum at to 189.1-2017 consists of a structural change to Section 7 that separates interior and exterior lighting requirements and a technical change that requires subzone occupancy sensing control in large offices, based on C405.2.1.3 of the 2018 IECC.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum au:
Addendum au to 189.1-2017 introduces a new threshold for pump efficiency as measured by the Pump Energy Index (PEI). These requirements meet the DOE standard for commercial and industrial pumps issued in January 2016 (effective January 2020) and already incorporated into ASHRAE 90.1.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum av:
Addendum av to 189.1-2017 updates the Building Performance Factors (BPFs) listed in Table 7.5.1 based on an analysis performed by PNNL showing the energy savings incurred using 189.1-2017 versus 90.1-2016.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum aw:
Addendum aw to 189.1-2017 deletes Section 9.3.3, which contains requirements that have been considered obsolete since the prohibition of ozone-depleting substances. This section is now reserved to be used in the future as the committee considers best practices for the use of refrigerants in green buildings.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum ax:
Addendum ax to 189.1-2017 adds a reference to Standard 62.1 Section 7, Construction and System Start-up, which includes new indoor air quality requirements. It also deletes some requirements from Section 10 of Standard 189.1 that are covered by reference to Standard 62.1, which is intended to avoid duplication and confusion.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum az:
Addendum az to 189.1-2017 removes the option to provide preferred parking for hybrid and low-emission vehicles as a means of meeting site vehicle provisions. As electric vehicles and charging stations become more prevalent, it is preferable to replace this option with additional requirements related to electric vehicle charging infrastructure.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum ba:
Addendum ba to 189.1-2017 revises the thermostat section to include an option to use EnergyStar requirements.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum bb:
Addendum bb to 189.1-2017 clarifies that minimum compliance with Standard 90.1-2019 is required without consideration of on-site or off-site renewable energy.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum be:
Addendum be to 189.1-2017 updates the lighting quality section to include new requirements for dimming controls, color rendition, and flicker. It also clarifies the applicability of the requirements and adds relevant normative references.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum bh:
Addendum bh to 189.1-2017 makes similar changes proposed in Addendum ap (removes the portion of 5.3.6 referring to 90.1 lighting requirements, simplifies section numbering) and additionally, combines Tables 5.3.6.2A and B to provide a holistic view of Section 5.3.6 lighting requirements. This proposal also removes one of the existing options for uplight compliance, maximum percent uplight, which is no longer considered an industry-standard metric.
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The following is under a 45-day Public Review from February 14 to March 30:
ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2017, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings
3rd Public Review ISC of BSR/ASHRAE/ICC/USGBC/IES Addendum aa:
This independent substantive change to Addendum aa modifies the definition of carbon dioxide equivalent (CO2e), deleting GWP values for methane and nitrous oxide which are no longer used. Various minor changes to clarify language are also suggested.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum ar:
Addendum ar to 189.1-2017 adds new definitions related to enforcing the 189.1/IgCC in a manner consistent with the other I-Codes. The new definitions include “approved,” “approved agency,” “approved source,” “listed,” and “labeled.” Consequently, phrases such as “approved by the AHJ” that appear throughout the text can be replaced with “approved.”
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum as:
Addendum as to 189.1-2017 updates the Lighting Power Density (LPD) allowances so that values exceeding 91% of ASHRAE 90.1-2019 values (for most applications) will meet the IES-recommended illuminances, rather than exceeding them by 110%. Some exclusions were made when the adjusted value was not ideal for that application; these variations have been noted in the proposal.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum ay:
Addendum ay to 189.1-2017 primarily consists of formatting changes that will simplify numbering and better organize requirements in Section 10.
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1st Public Review of BSR/ASHRAE/ICC/USGBC/IES Addendum bd:
Addendum bd to 189.1-2017 updates normative references in Chapter 11 to their most recent, relevant versions.
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2nd Public Review ISC of BSR/ASHRAE/ICC/USGBC/IES Addendum o:
This independent substantive change to Addendum o to 189.1-2017 comes in response to the first public review that received objections regarding the designation of walkways, bicycle paths, and greenfield sites as jurisdictional options. These sections have been reinstated as core requirements that jurisdictions are not given the option to exclude.
The following is under a 45-day Public Review from February 14 to March 30:
ASHRAE Guideline 36-2018, High-Performance Sequences of Operation for HVAC Systems
1st Public Review of Addendum h:
The purpose of this addendum is to update airflow setpoint tables in Sections 5.5 through 5.14; update control logic figures 5.5.5 through 5.14.5 to be consistent with updated airflow setpoint tables; correct Figure 5.13.5; update control logic descriptions in Sections 5.5 through 5.14 to match updated terms; remove hot duct static pressure reset requests based on airflow setpoint (5.13.8.4.1 and 5.13.8.4.2); and change the setpoint of the reverse-acting Ponly maximum hot duct damper position limiting loop from Vheat-max to the heating maximum endpoint (5.13.1.3.b).
1st Public Review of BSR/ASHRAE Standard 41.1-2013R, Standard Methods for Temperature Measurement
This revision of ANSI/ASHRAE Standard 41.1-2013 prescribes methods for measuring temperature under laboratory and field conditions.
1st Public Review of BSR/ASHRAE Standard 41.10-2013R, Standard Methods for Refrigerant Flow Measurement Using Flowmeters
This revision of ANSI/ASHRAE Standard 41.10-2013 prescribes methods for refrigerant mass flow rate measurement in laboratory and field applications using flowmeters.
1st Public Review of BSR/ASHRAE Standard 193-2010R, Method of Test for Determining the Airtightness of HVAC Equipment
This standard prescribes a method of test to determine the airtightness of forced-air HVAC equipment prior to field installation.
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.