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Course Criteria
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3.00 Credits
Knowledge of the maintenance, servicing and charging of residential and commercial air conditioners and residential heat pumps is covered. The student will replace components, test pressures and temperatures and perform charging and refrigerant recovery procedures. The student also will troubleshoot air conditioners, heat pumps, and rooftop heating-cooling units. Prerequisites: HVAC1170, HVAC1150 and HVAC1140 or 1320.
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3.00 Credits
The students will learn about various types of commercial refrigeration equipment, the necessary controls, and proper operation. Equipment will include reach in coolers and freezers as well as ice machines. Also covered will be proper maintenance procedures as well as troubleshooting and schematic diagrams. Prerequisites: HVAC1120, 1140, 1150, 1170.
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1.00 Credits
Students will have a basic understanding of safety regarding operating and performing tasks involving HVAC equipment. Some of the subjects covered will be personal protective equipment (PPE), safety methods for operating and handling torches, welding equipment, chemicals, and electricity.
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2.00 Credits
Introduction to the history of refrigeration, air conditioning and heating systems. Fundamentals and terminology relating to heat transfer; conduction, convection, and radiation. The principles of psychometrics, specific heat, and gas laws. Latent and sensible heat principles. The study of the first and second laws of thermal dynamics. Introduction to the types of equipment used. Job safety standards are applied.
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2.00 Credits
The study of the theory of magnetism and circuitry and how it applies to the induction motor. Introduction to the different types of motors used in the HVAC field that are used to drive fans, compressors, and pumps. The study of motor relays, contactors, and motor starters. The components used to make up an electric motor. Introduction to the basic controls used within an HVAC system to control temperature, humidity, and air flow. Understanding of secondary controls using transformers, relays, controls, and contactors. Introduction to wiring diagrams and schematics. Job safety standards are applied.
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2.00 Credits
Studies of the State of Minnesota Mechanical and Energy Codes relating to refrigeration, gas piping, venting, steam, and hydronic system installation codes. Practice of fabrication of copper, iron, steel and pex piping. Job safety standards are applied
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3.00 Credits
The study of steam and hydronic heating systems. Low pressure boiler code requirements, maintenance, troubleshooting and repairing of boiler systems. Study of the different types and applications of steam and hydronic boiler controls and piping. Practical lab experience of building-installation of a boiler and piping system. Preparation for the State of Minnesota Special Engineers license exam. Job safety standards are applied.
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1.00 Credits
This course will be an assigned internship with a professional, licensed HVAC contractor. Students will experience real hands-on service work performed on residential and commercial HVAC equipment. Students will work under an experienced technician applying their knowledge accumulated from lecture/lab training.
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2.00 Credits
This course will cover commercial HVAC systems and package heat/cool equipment. Make-up air/exhaust systems, steam/hot water boilers, both low and high pressure, air handling units, and related maintenance practices.
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1.00 Credits
Students will study and work on commercial/industrial burner controls used on the following: Low-high pressure steam and hot water boilers, Make-up air handling units, various types of equipment needing to be controlled and monitoring of large fuel usage as required by code.
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