Maricopa Community Colleges  HVA110LL   19984-20005 
Official Course Description:   MCCCD Approval:  03/24/98  
HVA110LL     19984-20005 LAB 1 Credit(s) 3 Period(s)
Principles of Air Conditioning Lab
Application of routine procedures including identification of air conditioning components. Evaluation of energy balance. Identification of electrical malfunctions. Safety stressed. Prerequisites: HVA105 or permission of department. Corequisites: HVA110 or permission of department.
 
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MCCCD Official Course Competencies:
 
HVA110LL   19984-20005 Principles of Air Conditioning Lab
1. Locate components of specific air conditioning systems and explain their function. (I)
2. Evaluate air conditioners and/or heat pumps for energy balance. (II)
3. Predict operating conditions for air conditioning units and heat pumps operating ouside of design operating conditions. (III)
4. Select appropriate electrical testing equipment, apply appropriate safety measures and diagnose electrical problems including fuses, relay coils, broken/missing wires. (IV)
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MCCCD Official Course Outline:
 
HVA110LL   19984-20005 Principles of Air Conditioning Lab
    I. Components Location/Function
        A. Compressor
        B. Condenser
        C. Metering device
        D. Evaporator
        E. Supply duct
        F. Return duct
        G. Balancing dampers
        H. Supply diffusers
        I. Return grills
      II. Energy Balance
          A. Evaporator
            1. CFM
            2. difference in temperature
            3. calculate British Thermal Unit (BTU) absorbed
          B. Compressor energy
            1. voltage
            2. current
            3. power factor
            4. electrical energy to British Thermal Unit (BTU)
          C. Condenser
            1. CFM
            2. difference in temperature (DT)
            3. calculate BTU
            4. energy
        III. Operating Conditions Outside Design Conditions
            A. High indoor humidity
            B. High indoor temperature
            C. High indoor temperature and humidity
            D. Low indoor temperature
            E. High outdoor temperature
            F. Low outdoor temperature
          IV. Electrical Problems
              A. Open fuses
              B. Broken/missing wires
              C. Defective coils
              D. Defective contacts
              E. Other
              F. Safety
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