NCCER Sheet Metal Level 3

Issued by NCCER

This individual has demonstrated the ability to: • Identify commercial air distribution systems • Describe VVT and VAV system operation • Explain how duct pressure relates to airflow • Describe the air distribution system design process • Identify design standards that apply to transitions, offsets, and ells • Use an architect’s scale to take measurements on scale drawings • Read/interpret construction drawings and documents • Perform an equipment and material takeoff …see more skills below.

Type Validation
Time Hours

Additional Details

Skills

more skills below

Earning Criteria

…skills continued… • Explain the purpose of specifications and submittals • Describe the air balancing process • Identify tools and instruments used in air balancing • Conduct air leakage testing • Measure airflow at grilles and diffusers • Adjust dampers • Explain how fiberglass blanket is used to insulate air ducts • Cut and install fiberglass blanket insulation and seal butt laps • Explain how fiberglass board insulation is installed on air ducts • Kerf, lay out, and install board insulation
Completed training through an NCCER Accredited training organization. Successfully demonstrated to an NCCER-certified instructor and/or evaluator the performance task requirements for this level. Successfully completed the course modules and passed the knowledge based examinations.