Home
Global Supplier Directory
APPLIANCE Engineer
Supplier Solutions
APPLIANCE Line
Whitepaper Library
Calendar of Events
Association Locator
Contents Pages
Market Research
Subscription Center


 
Daily News

ASHRAE Addendum Addresses Recirculation of Air
Jul 24, 2003
 Printable format
 Email this Article
 Search

A proposed addendum to the American Society of Heating, Refrigerating and Air-Conditioning Engineers' (ASHRAE) ventilation standard that
limits recirculation of air in buildings has been approved for a fifth public review.

ANSI/ASHRAE Standard 62-2001, Ventilation for Acceptable Indoor Air Quality, sets minimum ventilation rates and other requirements for commercial and institutional buildings. Addendum 62y was approved for a fifth review at ASHRAE's 2003 Annual Meeting, June 28-July 2. Public review dates will be announced later this summer.

The proposed addendum adds a new section that defines four classes of indoor air and limits recirculation of lower quality air into spaces that contain air of higher quality. The proposed addendum would create requirements for recirculation of air, making it clear to designers what can and cannot be recirculated to where, according to David Butler, P.E., committee chair.

The foreword to the addendum describes the classifications and recirculation criteria, which are:
* Class 1: Air with low contaminant concentration and inoffensive odor and
sensory-irritation intensity, suitable for recirculation or transfer to any
space.
* Class 2: Air with moderate contaminant concentration, mildly offensive
odors or sensory-irritation intensity. It also includes air that is not necessarily harmful or objectionable but which is inappropriate for transfer or recirculation to spaces used for different purposes.
* Class 3: Air with significant contaminant concentration or significant offensive odor or sensory-irritation intensity that is suitable for
recirculation within the same space. Class 3 air is not suitable for recirculation or transfer to any other spaces.
* Class 4: Air with highly objectionable fumes or gases or potentially containing dangerous particles, bioaerosols, or gases at a concentration high enough to be considered harmful, not suitable for recirculation or transfer within the space or to any other space.

The addendum does not address recirculation or transfer of air from smoking areas to no smoking areas.

Back to Daily News

 

Daily News

...........................................................

Aug 29, 2014: Adaptive Frequency Drive Increases Trane Chiller Efficiency

Aug 29, 2014: Vitamix President Receives Entrepreneur of the Year Award

Aug 28, 2014: LG Heat Pump Clothes Dryer Earns Emerging Technology Award

Aug 28, 2014: Early Snowthrower Demand Boosts Toro Sales

Aug 27, 2014: Sustainability Standard Launched for Household Portable and Floor Care Appliances

More Daily News>>

RSS Feeds
.........................................................
Appliance Industry
Market Research

...........................................................

March 2014: Market Research - 62nd Annual U.S. Appliance Industry Forecast
February 2014: Appliance Magazine Market Insight: December 2013
January 2014: Market Research - Appliance Historical Statistical Review: 1954-2012
January 2014: Appliance Magazine Market Insight: November 2013




 
Contact Us | About Us | Subscriptions | Advertising | Home
UBM Canon © 2014  

Please visit these other UBM Canon sites

UBM Canon Corporate | Design News | Test & Measurement World | Packaging Digest | EDN | Qmed | Pharmalive | Plastics Today | Powder Bulk Solids | Canon Trade Shows