HAC 202 - Air Conditioning Systems

 
Description
This is a course in the design and function of residential and commercial air conditioning equipment.  Topics include whole house and window air conditioners, rooftop units, heat pumps, mini-split systems and air purification systems.  Students discuss electrical controls, wiring, troubleshooting and thermodynamics.  Safe handling and use of refrigerant gases is explored as well as different charging techniques used in the industry.

1. Analyze air conditioning system airflow and adjust a forced air multi-speed blower motor as necessary.
2. Identify the components of a residential condensing unit and air handler.
3. Demonstrate proper charging techniques for a fixed metering and thermostatic expansion valve (TXV) type system by superheat, weight and manufacturers charging chart.
4. Assess the performance of a window/wall type air conditioner or Packaged Terminal Air Conditioner (PTAC) unit and charge as necessary.
5. Diagnose electrical and mechanical faults of an air conditioning system and heat pump system.
6. Demonstrate the proper wiring and programming of a digital thermostat.
7. Complete heating and air conditioning schematics and pictorial diagrams.

1. Thermodynamics
2. Residential and commercial air conditioning
3. Refrigerant gas safety, recovery, recycling and charging
4. Deep vacuum techniques
5. Nitrogen safety and purging techniques
6. Airflow and control board jumper setup
7. Air filters and air purification
8. Window air conditioners and PTAC units
9. Mini-split systems
10. Electronically commutated motor (ECM) blower motors

• Critical Thinking & Problem Solving
• Quantitative & Scientific Reasoning

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