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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

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...
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 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...
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 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...
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.
May 24, 2016
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
March 29, 2016
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
January 23, 2016
Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings
FOREWORD The committee approved a proposal to change references to “whole-building” or “whole-house” ventilation to “dwellingunit” ventilation in the main body of the standard. This addendum will...
January 23, 2016
Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings
FOREWORD There is confusion in the industry regarding where ventilation system airflow measurements can be taken. This addendum provides guidance on this topic while aligning the language with the...
January 23, 2016
Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings
FOREWORD The intent of Section 7.2.2, “Demand-Controlled Local Exhaust Fans,” is to require fans to have at least one speed setting meeting the minimum required exhaust airflow rate where the...
January 23, 2016
Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings
FOREWORD This addendum updates the normative references in anticipation of publishing the 2016 edition of Standard 62.2. Note: In this addendum, changes to the current standard are indicated in the...
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