![Page 1: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/1.jpg)
ANSI/ASHRAE Standard 62.1 What’s new in ventilation?
Kelley Cramm
![Page 2: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/2.jpg)
ANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air
Quality
![Page 3: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/3.jpg)
![Page 4: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/4.jpg)
Introduction to Standard 62.1•Consensus standard
•First published in 1973
•Now on continuous maintenance
•Backed by years of research
•Initially prescribed ventilation rates only
•Introduced “IAQ” Procedure in 1981
•Specifies “Breathing Zone Ventilation Rates”
![Page 5: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/5.jpg)
Introduction to Standard 62.1•Applicable to new buildings and changes to existing buildings
•Applies to all indoor or enclosed spaces that people may occupy
•Also covers release of moisture in bathrooms, locker rooms, etc.
![Page 6: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/6.jpg)
Does not address smoking
![Page 7: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/7.jpg)
Includes Code Intended Language
• The standard has been incorporated in one form or another in the model codes
![Page 8: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/8.jpg)
2003 International Mechanical Code
![Page 9: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/9.jpg)
IMC, UMC, OR
ASHRAE 62.1-2004???
![Page 10: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/10.jpg)
• Available free for viewing on the ASHRAE website
• Also available for purchase on the ASHRAE website
WWW.ASHRAE.ORG
![Page 11: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/11.jpg)
![Page 12: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/12.jpg)
Why do we need a ventilation standard?
• Help insure indoor air quality acceptable to human occupants
• Minimize potential for adverse health effects
![Page 13: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/13.jpg)
How do we define “Acceptable Indoor Air Quality”?
• “Air in which there are no known contaminants at harmful concentrations as determined by cognizant authorities and which a substantial majority (80% or more) of the people exposed do not express dissatisfaction.”
![Page 14: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/14.jpg)
Ventilation Rate Procedure
![Page 15: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/15.jpg)
• Verify outside air quality meets EPA ambient air quality standards
• Treat outside air if required
• Carefully locate outside air intakes
![Page 16: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/16.jpg)
![Page 17: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/17.jpg)
• Determine “breathing zone outdoor air flow”
![Page 18: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/18.jpg)
![Page 19: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/19.jpg)
• Correct for Zone air distribution effectiveness
• Correct for multiple zones (system ventilation efficiency)
![Page 20: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/20.jpg)
![Page 21: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/21.jpg)
Other Requirements
• Ventilation air flow must be maintained during any load condition and at all times the space is occupied
![Page 22: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/22.jpg)
Other Requirements
• Drain pans must drain• Maintenance access to
equipment required• Building envelope designed for
moisture control• Insulate to prevent
condensation• Airstream surfaces must resist
mold growth and erosion
![Page 23: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/23.jpg)
Outdoor Air Intakes
• Must prevent rain intrusion
• Must manage snow entrainment
• Must have bird screens
![Page 24: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/24.jpg)
Filters
• Minimum MERV 6 filters required ahead of wet coils
![Page 25: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/25.jpg)
Relative Humidity
• Limited to 65% or less at design dew point condition
![Page 26: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/26.jpg)
Smoking Areas
• Separate “ETS Free Areas”from “ETS Areas”
![Page 27: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/27.jpg)
• Air movement within building must observe air classification requirements
![Page 28: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/28.jpg)
![Page 29: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/29.jpg)
• Short term conditions
• CO2 measurement and control
![Page 30: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/30.jpg)
Space Pressurization
+ ++
Building Must be Positive
![Page 31: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/31.jpg)
A Word About Clarifications
Sometimes there are unstated motives
![Page 32: ANSI/ASHRAE Standard 62.1 What’s new in ventilation? · PDF fileANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality](https://reader031.vdocuments.net/reader031/viewer/2022013113/5aa5d53b7f8b9a517d8dc781/html5/thumbnails/32.jpg)
What’s Next??
2007 EditionPick up addenda
Clarifications