Introduction to HVAC for Transit - SC-eHV-3000-DE-I

Prerequisites: DVOM Course (preferred) or thorough understanding of meters or equivalent experience

Course Description: This blended course offering is designed to introduce the technician to the air conditioning systems used on transit vehicles. The online course will concentrate on building a strong foundation in the theory of operation of air conditioning systems. This foundation will enable the technician to successfully deal with changing systems and refrigerants. The student will identify the system components and functions used in air conditioning systems. Integrated into this course are the components used on transit specific applications. In class, the student will be working with the tools of air conditioning service such as, Manifold Gauge Sets, P/T Charts, and Pressure/Temperature Measurement. Safety will be emphasized. Basic compressor clutch circuits and electrical testing will be covered. An introduction into Gauge Diagnosis will also be presented to help prepare the student for the service and diagnostic procedures in course HVAC-II.

Course Benefits: The benefit of this course is for the technician to understand the air conditioning system components and function. Troubleshooting and diagnosis require a thorough understanding of this foundation. The technician would also be able to safely use the basic tools of air conditioning service. Students will gain knowledge about the need for the correct refrigerants and oil for the diverse air conditioning systems.

Who Should Attend: Those who have taken DVOM/eDVOM or as determined by Supervisor.

What You Will Learn:

• Understand the requirements of EPA Certification.
• Describe safe Air Conditioning (A/C) service practices.
• Understand how heat moves and the relationship between heat and pressure.
• Select the correct oil for various refrigerants.
• Identify basic A/C components.
• Describe basic A/C functions.
• Demonstrate how to use and operate basic A/C tools.
• Identify common Transit A/C systems in use today.
• Analyze various manifold gauge results and select the correct diagnosis.

Course Outline:

• Similarities & Differences of Transit Bus Equipment
• High Voltage System Overview
• Safety and Personal Protective Equipment (PPE)
• Units of Energy – Differences between fuel and electrical energy
• Facility Considerations for EV transit vehicles

Number of Hours/Days:

• 4 hours online over a 3-week period
• 8-hours in-class for 1-day instructor facilitated training

Continuing Education Units (CEU): 0

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