Level Four consists of 240 hours of classroom & shop activities reviewing previous levels as well as introduce new materials.

	Refrigeration Code
	Integrated controls
	Electrical Code (Preparation to write 'RE' exam)
	Troubleshoot complex electrical circuits
	Three phase motor starters
	Basic solid-state electronics
	Control systems and components
	Pneumatic control systems
	Cascade refrigeration systems
	Ammonia refrigeration systems
	Absorption systems
	Air-Air heat exchangers
	System troubleshooting
	Gas 'B' course

 

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