446 – Introduction to CO2 Refrigerant Systems

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This advanced level, eleven-module series is designed for experienced HVACR technicians, or those who have completed an educational program in HVACR.  The 446 course focuses upon introducing the HVACR technician to the utilization of CO2 refrigerant in commercial applications. The course is not limited to one manufacturer or type of system. Emphasis is put on real-world operations and troubleshooting scenarios.

Modules included:
 
    • CO2 Refrigeration Safety
    • CO2 Refrigeration Terms
    • CO2 Properties / Phases of CO2
    • CO2 Piping
    • Leak Detection & Motor Room Ventilation
    • Different Types of CO2 Systems
    • CO2 Components
    • CO2 Oil Systems
    • Defrosting with CO2
    • Pre-Startup Checks, Evacuation Pressure Testing & Startup
    • CO2 Common Operation Logic
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