DST 115 - Diesel HVAC Systems

5 credits

This course, in addition to DST 110, provides the basic theory and operating characteristics of heavy duty diesel refrigeration systems required for successful completion of ASE area T7 Med/Hvy Truck: Heating and Air Conditioning and the 609 Federal Refrigeration Test. Instructional focus includes: safety precautions, environmental concerns, tooling, system identification, principles of refrigeration, states of matter, effects of pressure on gases and vapors, pressure-temperature relationships, basic refrigeration cycle, refrigerant types, refrigeration system components and cooling system components. Laboratory work includes proper handling of refrigerants, troubleshooting and basic servicing of these systems utilizing strategy-based diagnostics required for contemporary service of heavy duty diesel HVAC systems. Prerequisite: Credit in DST 101, DST 110 or instructor approval. Corequisite: Verifiable registration/attempted testing of ASE area T7 Med/Hvy Truck: Heating and Air Conditioning. Corequisite: Successful completion of Federal Refrigeration Test is mandatory. Requisite is pursuant to Federal Clean Air Act, Section 609. [W]