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ASHRAE STD 62.2

Ventilation and Acceptable Indoor Air Quality in Residential Buildings

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Organization: ASHRAE
Publication Date: 5 February 2020
Status: active
Page Count: 5
scope:

FOREWORD

Several questions have arisen from users of the standard and within the SSPC regarding requirements for installation and operation of mechanical ventilation systems. The changes in this addendum are intended to clarify the requirements for complying with the standard. The changes introduce a specific paragraph to address operation requirements (Section 4.4.2). Note that the deletion of the last sentence in Section 4.4.1 does not remove the requirement to label controls. These are still required per existing text in Section 6.2 "Controls and Labeling".

Note: In this addendum, changes to the current standard are indicated in the text by under-lining (for additions) and (for deletions) unless the instructions specifically mention some other means of indicating the changes.

Document History

September 23, 2022
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Ozone and similar reactive oxygen species are hazardous both directly and through the indoor chemistry they promote. Some air cleaning systems may produce ozone intentionally or...
September 23, 2022
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum m increases the designated minimum efficiency of certain filters from MERV 6 to MERV 11, with comparable increases to minimum particle size efficiencies established using AHRI...
January 1, 2022
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
This standard applies to dwelling units in residential occupancies in which the occupants are nontransient. This standard considers chemical, physical, and biological contaminants that can affect...
July 30, 2021
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum g deletes the reference to ASHRAE Guideline 24-2015, Ventilation and Indoor Air Quality in Low-Rise Residential Buildings, from Standard 62.2. Guideline 24-2015 was withdrawn by...
July 30, 2021
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum f updates the references used for rating ventilation equipment. The revised references allow for ratings that better reflect installed performance and allow for improved...
April 30, 2021
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Disentangling the requirements of ventilation rate, control, and operation makes the standard easier to follow, enforce, and maintain over time. Addendum b clarifies an issue regarding to...
April 30, 2021
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum e makes the air leakage rate for compartmentalization in multifamily dwellings more stringent. This change reduces air and contaminant transfer between dwelling units in...
January 27, 2021
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum y addresses concerns regarding ventilation of new multifamily dwellings that are accessed by an enclosed common corridor where the operation of exhaust systems may draw air from...
September 30, 2020
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum d replaces the current definition of “readily accessible” with a new definition from the 2020 National Electrical Code (NEC) intended to be less ambiguous and more compatible with...
July 31, 2020
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum v updates the normative references in Standard 62.2, Section 9. Note: In this addendum, changes to the current standard are indicated in the text by underlining (for additions)...
February 12, 2020
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
ASHRAE STD 62.2
February 5, 2020
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Several questions have arisen from users of the standard and within the SSPC regarding requirements for installation and operation of mechanical ventilation systems. The changes in this...
February 1, 2020
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
Background: Since 2007, Section 4.1 (Ventilation Rate) of ASHRAE Standard 62.2 has stated that “each dwelling unit” is to be provided with “outdoor air” at the rate specified. This rate is...
June 22, 2019
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum t 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...
June 22, 2019
Ventilation and Acceptable Indoor Air Quality Residential Buildings
A description is not available for this item.
June 22, 2019
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum c aims to minimize the potential for formulating variable ventilation control strategies that could result in substantial underventilation for noticeable periods of time. Note: In...
January 13, 2019
Ventilation and Acceptable Indoor Air Quality Residential Buildings
Background: The scope states that Standard 62.2 will not necessarily achieve acceptable indoor air quality if the system is not operated as designed. Operations (and maintenance) are not required by...
January 1, 2019
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
March 9, 2018
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
April 27, 2017
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
January 1, 2017
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
FOREWORD Addendum b modifies the language regarding controls for on-demand ventilation systems to better accommodate cases where the on-demand fan is also used toward the wholedwelling ventilation...
November 4, 2016
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
October 7, 2016
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
September 26, 2016
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
June 9, 2016
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
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