Geothermal Heating, Ventilation And Air Conditioning Systems
The student should have a complete understanding and knowledge of the characteristics of several different types of refrigerants and the correct usage. Upon completion of this course, the student should be able to pass the examination set forth by a third-party testing facility.
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Upon completion of this course, the students should be able to understand nuances of new refrigerants on the market. The student should have a complete understanding and knowledge of the characteristics of RA. Upon successful completion of this course, the student should be able to identify the components, equipment and operation for sheet metal layout and fabrication. Practice problems are included at the end of each unit in order to provide the student with an opportunity to apply the methods attained by sheet metal layout.
Shop facilities are available. The patterns will be fabricated and joined into a line of fittings. This gives the most complete test of pattern accuracy and also provides the experience needed by a competent layout person. Upon successful completion of this course, students will be able to perform a load calculation for residential HVAC applications.
The student should be able to determine proper sizing of residential HVAC equipment and duct work to meet the requirements for high-quality climate control system. Upon successful completion of this course, the student should be able to identify all the components and accessories and their relationship to the functions of residential and commercial air conditioning and heat pump systems. Topics covered will include air conditioner condensing units, metering devices, evaporation coils and refrigerants. This is an introductory course in plumbing technology that is appropriate for HVAC students.
Upon successful completion of this course, the student should be able to identify and repair most of the basic components in a plumbing system. Topics will include soldering and brazing, plumbing repair, sizing of water distribution lines, including drain, waste and vent DWV piping, and supply water lines. Topics will include electrical controls and economizers of various rooftop units, roof curbs, installation, service, diagnosis, evacuation and charging of typical light commercial rooftop units. Upon successful completion of this course, the student will be able to identify techniques and procedures to install new systems and retrofit systems.
Topics include initial start-up, maintenance of furnaces and air conditioners, electrical requirements, permits and inspections, combustion air, sheet metal and applying mechanical standards.
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Upon successful completion of this course, the student should be able to interpret and apply the Code to HVAC applications. Upon successful completion of this course, students will be able to understand and apply advanced electrical theory consisting of wiring gas and electric furnaces, air conditioners and heat pumps. This class will develop diagnostic skills associated with common heating and cooling problems found in the HVAC trade. The students will be able to examine advanced electrical wiring diagrams, understand the sequence of operations for the HVAC equipment and conduct troubleshooting methods.
Prerequisites : Department approval. Upon successful completion of this course, the student should be able to apply classroom knowledge to an actual work environment. The internship will provide the students with an on-the-job experience under the supervision of industry professionals. The work will be developed in cooperation with area employers, college staff and each student to provide a variety of actual job experiences directly related to the student's career goals in the HVAC field.
Minimum 15 hrs. Describe the types of regulatory codes encountered in the HVAC trade. Explain how heat transfer principles occur in a cooling system, demonstrating an understanding of the terms and concepts used in the refrigeration cycle. Calculate the temperature and pressure relationships at key points in the refrigeration cycle. Demonstrate the use of temperature- and pressure-measuring instruments to make readings at key points in the refrigeration cycle.
Identify commonly used refrigerants and demonstrate the proper procedures for handling these refrigerants. Identify the major components of a cooling system and explain how each type works. Identify the major accessories available for cooling systems and explain how each works. Identify the control devices used in cooling systems and explain how each works.
State the precautions that must be taken when installing refrigerant piping. Determine the kinds of hangers and supports are needed for refrigerant piping. Evaluation of student mastery of course competencies will be accomplished using the following methods:. JCCC provides a range of services to allow persons with disabilities to participate in educational programs and activities.
If you are a student with a disability and if you are in need of accommodations or services, it is your responsibility to contact Access Services and make a formal request. To schedule an appointment with an Access Advisor or for additional information, you may send an email or call Access Services at State and demonstrate the safety precautions that must be followed when working on electrical equipment and circuits.
Apply power formula to calculate how much power is consumed by a circuit. Describe the difference between series and parallel circuits and calculate loads in each. Perform voltage, current and resistance measurements using electrical test equipment. Describe the purpose and operation of the various electrical components used in HVAC equipment. Introduce airside and hydronic systems including various types of boilers, piping, chilled water and their components. Measurement and control of air temperature, humidity, pressure and velocity. Introduce troubleshooting of heating, cooling and heat pumps systems.
Introduce troubleshooting of control circuits, electronic controls and accessories. Introduce troubleshooting of air quality and energy conservation equipment. Identify cooling equipment components and basic refrigeration theory. Describe the application of the EPA regulations regarding the following:.
Heating, Ventilating & Air-Conditioning Systems: Sizing and Design
Identify equipment service requirements. Recovery procedures and safety procedures for Type I technicians small appliances , Type II technicians high pressure systems and Type III technicians low pressure systems. Describe the concepts involved in recycle, recovery, and reclaim refrigerant protocols. Describe terms and definitions related to sheet metal fabrication and layout. Fasten sheet metal together using the Snap-lock machine and the Pittsburg machine. Fasten sheet metal together using appropriate methods consisting of the finger break, rolls, easy edger, drive turner and notching the sheet metal for the various joints.
Safety Glasses: Safety glasses with side shields are required to be worn during lab activities associated with this course. This is in compliance with accepted eye protection practices and Kansas State Law K. Calculate the heat transmission multiplier HTM and solar gains for glass. Analyze the overhangs, internal loads, infiltration loads and duct loss. Determine the factors that are associated with heat loss and heat gain in a residence. Use the energy conservation standards to determine the correct size of loads. Apply math principles to calculate the requirements of a load calculation.
List the factors that determine if the equipment is too large for residential applications. Design and layout the location of the duct work in a residential and commercial application. Use the ACCA duct sizing calculator, determine the size of the duct needed to supply the required amount of air for residential and commercial applications. Calculate the required cubic feet per minute CFM needed for each room in a residential and commercial application.
List the components and controls in a typical air conditioning system. List the functions and operating characteristics of low-voltage control systems. Describe the materials used in brazing, advantages and disadvantages. Troubleshoot the circuit electrical protectors — fuses and circuit breakers.
Identify career and apprentice opportunities in the HVAC and plumbing trade. Identify job outlook and expectations for the HVAC and plumbing trade. Recognize the soft skills needed to be successful in the HVAC and plumbing trade. Identify the size and location of the supply hot and cold water fixtures in residential applications.
Identify the size and location of the drain, waste and vent DWV piping in residential applications. Explain and identify the different types of plumbing materials used in the plumbing trade. Safely demonstrate the joining of plumbing fittings and piping together consisting of copper, plastic or steel tubing by the methods of soldering, brazing, flaring and the use of compression fittings.
Low Temperature Heating And High Temperature Cooling
Describe the types of regulatory codes encountered in the plumbing trade. Examine and calculate the venting requirements for residential applications. Construct and install a venting system for fossil fuel appliances used in the plumbing trade. Examine the requirements of the potable water needs for a residential application. Calculate the size and length of the potable water requirements for a residential application. Identify personal ethics and communication skills needed in the HVAC trade.
Mindset: The New Psychology of Success
Demonstrate knowledge of test instruments and refrigeration equipment. Describe the safety regulations concerning personal protective equipment PPE. Describe the level of proficiency when working with hazardous materials, construction safety and fire hazards. Understand simple and complex electrical diagrams used in the HVAC trade. Apply the manufacturer's performance data information to the installation practices.
Apply the electrical skills as related to the installation practices. Identify the functions and operational characteristics of the following components of gas heating units. Disconnect and reconnect to operating condition all the communication and control wiring for a typical DDC controlled system.
Mindset: The New Psychology of Success
Exercise: Calculate and measure the air flow in a system using the auxiliary heat method. Solve specific rooftop refrigeration system problems on an operating rooftop system. Exercise: Disassemble and reassemble to operating condition two different rooftop units. Find and repair faults to the following components in an operating rooftop unit.