Single Family
7. Healthy Living Environment
7.7 HVAC Sizing
Mandatory
Appropriately size HVAC systems to prevent short-cycling of heating or air conditioning and ensure adequate dehumidification.
Green Communities Recommended Resources
Purchase Air Conditioning Contractors of America Manual, parts J and S online.
Green Communities and the Green Communities Criteria are a national initiative of Enterprise Community Partners to transform the affordable housing sector. For more information go to www.greencommunitiesonline.org
Important Considerations
Codes and Regulations
This criterion is already required by Minnesota code
Minnesota rule 7672.0900
Subpart 1: Equipment sizing
A. HVAC equipment must be sized according to the ASHRAE Handbook of Fundamentals, ACCA Manual J, or an equivalent method. Oversizing of heating equipment must not exceed 43 percent and oversizing of cooling equipment must not exceed 21 percent.Note that this requirement does not include part S of the ACCA manual.
Specifications
23 00 00 (15700) HVAC Systems Specify HVAC system that is sized in accordance with the Air Conditioning Contractors of America Manual, Parts J and S.
The information above refers to the Construction Specification Institute's (CSI) MasterFormat. The numbers listed above refer to some of the most relevant but not all of the possible MasterFormat sections related to this strategy. The 6-digit numbers refer to the newer 2004 MasterFormat edition. Numbers in parenthesis refer to the older 1995 edition.
Other Resources
Publications and Links
See full list of recommended resources and links in our library.
Related Strategies
| E2a: | Design and install efficient mechanical systems |
| E4: | Model and evaluate performance |
| Q1c: | Ventilate and exhaust for pollution control |
| Q2: | Provide comfortable thermal conditions |
Related Scales
