On-site Training

Commercial Systems Service

  • 4.5 Days
  • 3.2 CEU's

This course exposes the student to commercial unit and systems operation, set-up, and troubleshooting. This course is delivered through a combination of classroom activities, interactive workshops, and hands on lab exercises using Trane commercial unitary and applied equipment. The course emphasizes a systematic approach to commercial HVAC system service and troubleshooting.

Upon completion of this course, participants should be able to:
  • Interpret temperature and pressure readings on an operating refrigeration system.
  • Troubleshoot common refrigeration system issues.
  • Measure airflow using appropriate airflow instruments.
  • Apply airflow fundamentals to unit operation.
  • Perform combustion analysis and determine combustion efficiency/
  • Compare air mixtures using the psychrometric chart.
  • Set up an economizer using appropriate mixed air formulas.
  • Describe building systems used in commercial HVAC applications.

Students must have a working knowledge of the basic theory needed to diagnose the refrigeration cycle and an understanding of the following tools and subjects:

  • Refrigeration Manifold Gauge Set
  • Volt/Ohmmeter
  • Electronic Temperature Meter
  • Clamp-on ammeter
  • Temperature/Pressure Relationships
  • Metering Devices
  • Basic trade math

Our programs use a variety of assessment methods to measure learning, from pre and post tests, to classroom activities, quizzes and workshops.


Next Class

2213 20th Street S, Bldg 12, La Crosse, WI, 54601

Nov 02-6, 2020


2 seats available

An early bird discount of 10% off tuition will be given when you register more than 60 days prior to the start date. We also have Package Programs where you can save up to 40% off tuition of multiple courses! Visit our website for more details at

Locations & Dates

2213 20th Street S, Bldg 12, La Crosse, WI, 54601 Nov 02-6, 2020 $1800 2 seats available Register