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National College Credit Recommendation Service
Apex Technical School | Evaluated Learning Experience
Commercial Air Conditioning
24-02 Queens Plaza South, Long Island City, NY.
150 hours (5 weeks); includes approximately 75 hours of supervised shop experience.
Instructional delivery format:
Traditional classroom model
Upon successful completion of the course, students should be able to: construct piping and wiring diagrams of a commercial air conditioning system; describe the functions of refrigeration components found in commercial air conditioning; install and remove gauges on systems using service valves; explain how to measure the velocity and pressure of air moving through ductwork; adjust fan speed; describe the operation of systems using cooling towers or evaporative condensers; wire single phase and three phase electrical circuits; evaluate low voltage control circuits; perform maintenance on electrical and mechanical control devices; troubleshoot common problems found in a commercial air conditioning unit; evaluate air conditioning processes using psychrometric charts.
Major topics include: air cooled and water cooled systems; refrigeration components; psychrometric processes; piping diagrams; introduction to cooling load calculations; electrical circuits; air flow and distribution; duct distribution; filtration; air volume, velocity, and static pressures; gauge procedures; fan speed adjustments; humidification; condensers; cooling towers; wiring; electrical and mechanical control maintenance; troubleshooting techniques; thermostats; duct drawings; chilled water systems.
In the lower division baccalaureate/associate degree category, 5 semester hours (3 lecture, 2 shop) in HVAC and Refrigeration Technology or Mechanical Technology (12/98) (12/03 revalidation) (1/09 revalidation) (12/13 revalidation) (12/18 revalidation).