ASHRAE 62.1 | Ventilation for Acceptable Indoor Air Quality | Standards Michigan

ASHRAE 62.1 | Ventilation for Acceptable Indoor Air Quality

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ASHRAE 62.1 | Ventilation for Acceptable Indoor Air Quality

May 24, 2018
mike@standardsmichigan.com
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ASHRAE International has released several addenda to its widely adopted standard — ASHRAE 62 | Ventilation for Acceptable Indoor Air Quality — which specifies minimum ventilation rates and other measures for new and existing buildings that are intended to provide indoor air quality that is acceptable to human occupants and that minimizes adverse health effects.  Recently released Addendum i contains significant changes to the scope of this document which are now open for public review and can be accessed  on ASHRAE’s Online Standards Action & Public Review Draft page.  (Click here)

Comments are due May 27th.   ASHRAE invites anyone to comment on the development of ASHRAE 62.1 and any other of its consensus documents.   The ASHRAE suite is a swiftly moving suite which effectively sets the standard of care for environmental air systems in education and healthcare facilities.  Many of its committees meet twice a year at various locations around the US; the next Annual conference to be hosted in Houston, June 23-27.   We encourage workpoint subject matter experts in the Houston area — i.e. design, construction and O&M tradespersons working in education and healthcare campus HVAC shops — to attend this conference and sit in on the meetings of ASHRAE 62.1 (or any other technical committee) to observe how leading practice is discovered.

All ASHRAE consensus documents are on the standing agenda of our regular Wednesday, 11 AM Eastern Time, Open Door teleconference.  Anyone is welcomed to join these teleconferences with the login information below:

https://global.gotomeeting.com/join/718914669

You can also dial in using your phone. United States : +1 (408) 650-3123 Access Code: 718-914-669

Issue: [12-21]

Category Mechanical, Energy, Facility Asset Management

Colleagues: Richard Robben, Larry Spielvogel

 


April 21, 2018

University of North Carolina Chapel Hill

ASHRAE International has released several addenda to its widely adopted standard — ASHRAE 62 | Ventilation for Acceptable Indoor Air Quality — several of which may affect the design, construction and operation of education facilities.  These can be found on Pages 36 through 83 of ANSI Standards Action or at ASHRAE’s Online Standards Action & Public Review Draft page.  (Click here)   The changes are non-trivial; a sample of three of them summarized below:

Addendum g: HVAC requirements for minimally occupied spaces

Addendum h:  The standard may be applied to both new and existing buildings but its provisions are not primarily intended to be applied retroactively when the standard is used as a mandatory regulation or code.

Addendum z: Tabulation of requisite ventilation required at the outdoor air intake for many systems.

There are 15 more changes in the batch most recently released.  These specifics will find their way into construction documents and commissioning agreements and operations and maintenance budgets.

Comments are due April 22nd.   ASHRAE invites anyone to comment on the development of ASHRAE 62.1 on its Online Standards Action & Public Review Draft page.  (Click here).   We will place these on the agenda of our regular Wednesday, 11 AM Eastern Time, Open Door teleconference.  Anyone is welcomed to join these teleconferences with the login information below:

https://global.gotomeeting.com/join/718914669

You can also dial in using your phone. United States : +1 (408) 650-3123 Access Code: 718-914-669

 

Issue: [12-21]

Category Mechanical, Energy, Facility Asset Management

Colleagues: Richard Robben, Larry Spielvogel

Link to our ASHRAE 62.1 Workspace

 


September 5, 2017

University of Michigan Ross School of Business

ASHRAE International has released several addenda to its widely adopted standard — ASHRAE 62 | Ventilation for Acceptable Indoor Air Quality — several of which may affect the design, construction and operation of education facilities:

BSR/ASHRAE Addendum 62.1b-201x, Ventilation for Acceptable Indoor Air Quality (addenda to ANSI/ASHRAE Standard 62.1-2016) This proposed addendum responds to increasing requests for more simplified table for ventilation rate procedure of the standard. It contains a simplified ventilation rate table in Informative Appendix D for use in existing buildings where information for calculating minimum ventilation using Normative Appendix A for multiple spaces is often unavailable.

BSR/ASHRAE Addendum 62.1d-201x, Ventilation for Acceptable Indoor Air Quality (addenda to ANSI/ASHRAE Standard 62.1-2016) This proposed addendum deletes Informative Appendix D (Rationale for Minimum Physiological Requirements for Respiration Air Based on CO2 Concentration). Appendix D first appeared in 62-1989. Its purpose was to explain the relationship between oxygen and carbon dioxide in spaces. It is based on data from the 1950’s. Newer information is available. The committee is aware of misuse and confusion caused by the information in its present form and prefers to delete this misused appendix now. The committee may add back relevant informative guidance that assists with implementation of the standard in the next version of the standard.

BSR/ASHRAE Addendum 62.1f-201x, Ventilation for Acceptable Indoor Air Quality (addenda to ANSI/ASHRAE Standard 62.1-2016) The so-called “Multiple Spaces Equation” is very difficult to use, especially for variable volume systems for which there are an infinite number of scenarios with varying airflow, occupancy, supply air temperature, etc., all of which affect system ventilation efficiency. 62.1 includes two options for calculating system ventilation efficiency, a prescriptive approach using Table 6.2.5.2 and a more fundamental approach in Normative Appendix A. This proposed addendum replaces the table approach with two formulas, one used to determine system ventilation efficiency (Ev) and one used to determine minimum primary airflow setpoint intended to be used for VAV systems.

BSR/ASHRAE Addendum 62.2i-201x, Ventilation and Acceptable Indoor Air Quality in Residential Buildings (addenda to ANSI/ASHRAE Standard 62.2 -2016) This proposed addendum would make explicit that placing a new fan in a kitchen or bathroom in an existing dwelling unit can address the airflow deficit that would otherwise have existed through Section A3. This has been assumed to be true, but has not previously been made explicit. This proposed change would make this condition more transparent to users.

BSR/ASHRAE Addendum 62.2j-201x, Ventilation and Acceptable Indoor Air Quality in Residential Buildings (addenda to ANSI/ASHRAE Standard 62.2 -2016) This proposed addendum would explicitly allow existing buildings to use a branch-circuit overcurrent device as an override even if it is not dedicated to only the ventilation fan in recognition that running a new circuit for the fan in an existing home is not always feasible.

Comments are due October 8th.   ASHRAE invites anyone to comment on the development of ASHRAE 62.1 on its Online Standards Action & Public Review Draft page.  (Click here).   We will place these on the agenda of our regular Wednesday, 11 AM Eastern Time, Open Door teleconference.  Anyone is welcomed to join these teleconferences with the login information below:

https://global.gotomeeting.com/join/718914669

You can also dial in using your phone. United States : +1 (408) 650-3123 Access Code: 718-914-669

 

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