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What You Need to Know About Title 24 And Bypass
Panic and mayhem seem to be raining down on the HVAC streets of California as contractors scramble to interpret the new regulations and changes to bypass systems with the passing of the 2013 version Title 24. Title 24 is the building and energy code standard in California, which ensures building construction, as well as system design and installation, reach at least a minimum level of energy efficiency and maintains environmental quality. These standards result in lower energy costs, greater comfort, more dependable system service, and a better environment.
Yes, these changes do only apply to California currently, but the HVAC trends in the west coast state seem to set the standard for the industry. So what do we need to know about Title 24?
- Zoning systems with bypass dampers and ducts are still allowed.
The CEC (California Energy Commission) has approved certain compliance software packages to help design and submit systems with bypass dampers. Depending on the system, you can choose the Performance Compliance Method or the Prescriptive Method.
- There are airflow and fan efficacy requirements associated with zoning systems.
There may be different airflow requirements when zoning systems are used versus systems without zoning.
- Multi-stage cooling equipment may have fewer restrictions.
- If a system meets the requirements of a zonal control system, an energy credit is allowed.
- Check out the tables below which show mandatory requirements and performance compliance options for single zone systems versus systems with multiple zones:
As far as bypass is concerned, there’s no reason to fret over these changes – they’ve been set in place to ensure better energy usage for everyone. For more references on the current version of Title 24, click on the links below:
2013 Building Energy Efficiency Standards
2013 Building Energy Efficiency Standards Approved Computer Compliance Programs
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