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ASHRAE STD 62.2

Ventilation and Acceptable Indoor Air Quality Residential Buildings

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Organization: ASHRAE
Publication Date: 1 January 2016
Status: inactive
Page Count: 52
scope:

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 air quality. Thermal comfort requirements are not included in this standard

Informative Note: ANSI/ ASHRAE Standard 55-2010, Thermal Environmental Conditions for Human Occupancy).

While acceptable IAQ is the goal of this standard, it will not necessarily be achieved even if all requirements are met

a. because of the diversity of sources and contaminants in indoor air and the range of susceptibility in the population;

b. because of the many other factors that may affect occupant perception and acceptance of IAQ, such as air temperature, humidity, noise, lighting, and psychological stress;

c. if the ambient air is unacceptable and this air is brought into the building without first being cleaned (cleaning of ambient outdoor air is not required by this standard);

d. if the system(s) are not operated and maintained as designed; or

e. when high-polluting events occur.

This standard does not address unvented combustion space heaters.

PURPOSE

This standard defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality (IAQ) in low-rise residential buildings.

 

Document History

February 12, 2020
Ventilation and Acceptable Indoor Air Quality in Residential Buildings
A description is not available for this item.
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 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 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 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 addresses inconsistencies in the determination of intermittent ventilation flow rates. It also puts forth explicit mechanisms to meet the equivalence intent of noncontinuous...
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...
ASHRAE STD 62.2
January 1, 2016
Ventilation and Acceptable Indoor Air Quality 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...
October 13, 2015
Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings
FOREWORD This change integrates multifamily buildings into the rest of the standard rather than leaving them in a separate section. This makes it more clear that multifamily dwelling units and...
October 13, 2015
Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings
FOREWORD This change updates the requirements for ventilation controls, especially in the case of systems that are intended to operate continuously or automatically in multifamily units. In this...

References

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