PGE - Title 24 Proper Procedures for Charging Air Conditioners & Heat Pumps

Tuesday, June 5, 2012 - 9:00am to 4:30pm

Also Offered February 23 (Thursday, 9:00 am to 4:30 pm) Fresno--EOC
April 17 (Tuesday, 9:00 am to 4:30 pm) San Jose--Pipe Trades
April 18 (Wednesday, 9:00 am to 4:30 pm) Stockton--ETC
June 07 (Thursday, 9:00 am to 4:30 pm) San Jose--Pipe Trades
Description This one-day class will provide hands-on training and exercises on the Title 24 methods for checking charge and measuring air flow for residential and small commercial air conditioners and heat pumps. The instructor will review the basics of the refrigeration cycle, and discuss in detail the three methods of charging systems; charging by superheat with fixed orifice metering devices, charging by subcooling with thermostatic expansion valve metering devices, and weighing in the charge. Portable AC and heat pump training props are used to enhance the learning process by practicing techniques discussed during the class. Practicing HVAC technicians will gain valuable information which will improve system performance for their customers!
Audience Level This course is designed for the experienced residential HVAC service technician.
Defining superheat
Defining subcooling
Refrigerant cycle review
Air flow measurement and importance
Charge measurement and importance
Charging by weight
Recommended tools
Resources: tune-up sheets, charging charts, and charging calculators
Hands on charge checking exercise
Q&A, End course evaluation; Class Conclusion
Instructor(s) Rick Chitwood
Richard (Rick) Chitwood, founder of Chitwood Energy Management in Mount Shasta, California, is an expert in energy-efficient residential building construction, diagnostic testing, and performance evaluation. He has extensive hands-on experience working with builders to improve the energy efficiency of new homes and with homeowners and remodelers to improve the thermal comfort and energy performance of existing homes.

Rick is a leader in the building science-based house-as-a-system approach to green home energy design and retrofits. As lead trainer for the California Building Performance Contractors Association (, he teaches residential building professionals how to achieve high-performance thermal boundaries and energy-efficient mechanical systems.

Rick has participated in research projects involving extensive field-testing and data collection on California homes, and he advised the California Energy Commission on development of Quality Insulation Installation criteria for the 2005 Building Energy Efficiency Standards. He is also the author of several articles, including the "New Construction Report Card" series in Home Energy Magazine.

Resources N/A
Cost No fee for this program
Credits N/A

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