2008 Standards Info
- 2008 Main Page
- Summary of Major 2008 Changes (PDF file)
- Blueprint Newsletter
- Climate Zone Map
- Compliance Forms
- Addendum To Reference Appendices, JA4-Alternative Construction Assemblies
- Computer Compliance Programs
- HERS Regulations
- HVAC Change-out
- Local Ordinances Exceeding the 2008 Building Standards
- Outdoor Lighting Zones
- SRI-Solar Reflectance Index Calculator
- Title 24 Special Case Products and Appliances Listings
- Notices & Announcements
Pending 2013 Standards
Education & Training
- Online Learning Center
Title 24/2008 Standards - 2008 Energy Videos
- Blueprint Newsletter
- Fact Sheets
- 2008 Standards Informational Documents
- Other Title 24 Training
- Energy Glossary
Standards Archives
2008 HVAC Change-Out Information
The current 2008 Energy Standards include an update for air conditioning refrigerant charge verification procedures, proper airflow; removing the thermal expansion valve (TXV) as an alternative to refrigerant charge verification; added simplified HERS verification procedure for refrigerant charge and airflow measurements, such as saturation temperature and static pressure ports. The new Standards also require proper central fan airflow and draw in climate zones 10 15.
Change-Out Video
Energy expert Steve Easley and Mazi Shirakh from the California Energy Commission explain several significant changes in the 2008 Standards concerning HVAC changeouts.
- Residential HVAC Changeout Presentations
- CSLB News Release: Avoiding HVAC Building Permits Costly for Consumers
(PDF file, 2 pages, 41 kb). - Change-Out Card for Homeowners
(PDF file, 2 pages, 303 kb). Posted: November 29, 2011. - Change-Out Card for Contractors
(PDF file, 2 pages, 274 kb). Posted: November 28, 2011. - Guidance for Enforcement Agencies Regarding Approval Procedure for Weigh-In Method
(PDF file, 1 pages, 20 kb). Posted: March 2, 2011. - Template for Weigh-In Method Agreement
(PDF file, 1 pages, 109 kb). Posted: March 2, 2011. - Refrigerant Charge Verification: 70°F Return Air Requirement
(PDF file, 4 pages, 82 kb). Posted: October 29, 2010. - Residential HVAC Alterations and Registration of Energy Forms
(PDF file, 1 page, 37 kb). Posted: October 14, 2010. -
HERS Verification Requirements for the Alternate Charge Measurement Procedure
(PDF file, 1 page, 20 kb). Posted: September 15, 2010. - Contractors State License Board letter to C-20 Contractors regarding Enforcement
(PDF file, 1 page, 54 kb). Posted: August 12, 2010. - Contractors State License Board Permit Violation Referral Form
(PDF file, 2 pages, 35 kb). Posted: August 12, 2010. - California Climate Zone Map
- Climate Zone by City - This document lists California cities and their climate zones. (PDF file). Posted: August 16, 2010.
- Residential HVAC Change-out Forms CF-1R-ALT-HVAC
- Nonresidential HVAC Change-out Forms MECH-1C-ALT-HVAC
- Permit Violation Referral Form, Contractors State License Board. (56 kb)
- CSLB Industry Bulletin Regarding Renewed Enforcement of Building Permits (32 kb)
- Disposal of Out-of-Service Mercury-Added Thermostats, Departmentof Toxic Substances Control, (552 kb)
- Letter to Homeowners, California Energy Commission. (25 kb)
- 100% Testing By HERS Rater, California Energy Commission. (29 kb)
For HERS raters and where to get testing equipment contact: