This three-day intensive technical class is for HVAC contractors stepping up to Home & Duct Performance. Participants learn the fundamental skills to perform duct leakage & airfl ow diagnostics and duct renovation/replacement.
Who Should Attend?
Comfort Consultants and Auditor-Helpers who will be conducting Home & Duct Performance assessments should attend in order to know how to perform duct diagnostics, interpret the results, and be better able to sell duct renovations or replacement. Service Techs should attend in order to learn how to measure and interpret static pressure and velocity readings, and the impact of low airflow and leakage on refrigerent charge & system performance. Th ey will be better able to sell duct sealing/added returns as well as more in-depth airfl ow/home performance testing. Lead Installers and Installation Managers should attend in order to be able to perform: airflow/static pressure/duct leakage testing; testing out commissioning and air balancing of a new system; and duct renovations. Service Managers, Sales Managers and Owners should attend in order to be much better able to manage the implementation of Home & Duct Performance into their HVAC business.
What You Will Learn
- Impacts of duct leakage, poor duct insulation & low airflow on system efficiency & comfort
- Why high efficiency variable speed and 2 stage HVAC equipment is most affected by bad ducts
- Impacts of duct leakage on dust and IAQ
- Six ways to measure and demonstrate duct leakage
- Duct leakage code and standard ratings
- Duct sealing materials and techniques
- How to measure external static pressure & drop across fi lters and coils
- How to estimate airflow from static pressure
- How to measure air velocity at grilles/registers and inside ducts
- How to use a flow hood
- How to interpret and use the test results
- The implications of low or high total airflow
- All the possible duct renovation solutions to low air flow & poor distribution
- Basics of replacement duct design, common mistakes to avoid
- Truth about common misconceptions about airflow, static pressure and air balancing accuracy
BONUS Lead Generation Session: How service techs can sell comprehensive duct and whole house testing aft er measuring static pressure
Participants have the opportunity to operate a wide range of duct test instruments, e.g. static pressure manometer, anemometer, flow hood, duct airtightness tester. Ten working HVAC Duct Systems allow for maximum hands-on training.
None. Attendance at CI’s CORE/T-101 Home Performance Boot Camp is strongly encouraged (either before or after 102) as the impacts of duct leakage and closed doors on building pressures are explored in more detail in that class. CI Member & CI Duct Performance Partner companies with access to CI’s 70 Technical Training DVD/Online Video Library are provided with a recommended viewing list. Attendees will learn more if they attempt some static pressure and airflow measurements using their own test instruments ahead of time. Class qualifies for 7 BPI CEUs.