HART-1401 Basic Electricity for HVAC
HART-1403 AC Control Principles
HART-1407 Refrigeration Principles
HART-1445 Gas and Electric Heating
HART-2431 Advanced Electricity
HART-2436 Air Condition Troubleshooting
HART-2438 AC Installation/Startup
HART-2442 Commercial Refrigeration
HART-2445 Air Condition Systems Design
HART-2449 Heat Pumps
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