Maricopa Community Colleges  AVT155   19936-19965 
Official Course Description: MCCCD Approval: 05/25/93
AVT155 19936-19965 L+L 5 Credit(s) 6 Period(s)
Avionics Systems: Pneumatic, Air Conditioning, and Ice
Theory of operation, interfacing, troubleshooting, and repair of pneumatic, air-conditioning, and ice and rain systems. Prerequisites: Permission of Program Director.
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MCCCD Official Course Competencies:
 
AVT155   19936-19965 Avionics Systems: Pneumatic, Air Conditioning, and Ice
1. Review the components and basic operation of pneumatic systems. (I)
2. Test, troubleshoot, and repair pneumatic systems. (I)
3. Review the components and basic operation of air conditioning systems. (II)
4. Test, troubleshoot, and repair air conditioning systems. (II)
5. Review the components and basic operation of ice and rain protection systems. (III)
6. Test, troubleshoot, and repair ice and rain protection systems. (III)
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MCCCD Official Course Outline:
 
AVT155   19936-19965 Avionics Systems: Pneumatic, Air Conditioning, and Ice
    I. Pneumatic Systems
        A. Theory of operation
        B. Components
        C. Interfacing
        D. Indication and control
          1. General
          2. High pressure bleed control valve
          3. High stage temperature sensor
          4. High stage pressure sensor
          5. System regulator pressure sensor
          6. Auxiliary power unit low pressure bleed control valve
          7. Pneumatic pressure regulator valve
          8. Pneumatic system over-pressure valve
          9. Bleed air precooler
          10. Fan air valve
          11. Pneumatic system isolation valve
          12. Pneumatic temperature control sensor
        E. Engine air pneumatic supply
        F. Manifold failure detection
        G. Testing and troubleshooting
        H. Repairing pneumatic systems
      II. Air Conditioning
          A. Theory of operation
          B. Components
          C. Interfacing
          D. Pneumatic air supply
          E. Cooling
            1. Pack condition indication
              a. Pack selector switch
              b. Pack discharge temperature indicator and sensor
              c. Pack valve position indicator
              d. Turbine inlet temperature indicator and sensor
            2. Ram air system
            3. Air conditioning system operational data
          F. Distribution
            1. Hot trim air distribution
              a. Trim air check valve
            2. Conditioned air distribution
              a. Ground condition air connection
              b. Cold air relief valve
              c. Conditioned air shut-off valve
              d. Overpressure relief valve
            3. Individual air distribution
              a. Passenger compartment
              b. Flight compartment
              c. Flight instrument panel cooling
              d. Individual air distribution
            4. Cargo compartment distribution
            5. Ram air distribution
            6. Lavatory and galley ventilation
            7. Avionics compartment ventilation
              a. Electronics equipment and pilot's instrument panel cooling
              b. Navigation cooling system
              c. Main radio rack cooling
            8. Center accessory compartment ventilation
          G. Cargo compartment heating
          H. Cooling
            1. General
            2. Flow regulation
            3. Flow indication
            4. Refrigeration unit package
            5. Pack condition indication
          I. Temperature control
            1. General
            2. Hot trim
            3. Temperature control system components
            4. Automatic temperature control
            5. Manual temperature control
            6. Trim valve position indication
            7. Duct and compartment temperature indication
            8. Cabin temperature control
          J. Pressurization control
            1. General
            2. Cabin pressure control
            3. Outflow valve
            4. Cabin pressure relief
            5. Cabin pressure indication
            6. Automatic cabin pressure control
            7. Standby cabin pressure control
            8. Manual cabin pressure control
            9. Typical flight profile in auto mode
          K. Troubleshooting and testing
            1. Schematic Diagrams Manual
            2. Wiring Diagrams Manual
            3. Fault Isolation Manual
          L. Repairing air conditioning systems
        III. Ice and Rain Protection Systems
            A. Theory of opertion
            B. Components
            C. Electrical anti-icing system
            D. Rain removal system
            E. Thermal anti-icing system
            F. Airfoil
              1. System
                a. Shut-off valve
                b. Ground overheat thermal switch
                c. Telescoping duct
                d. Control P5 panel
            G. Air intake
              1. Engine cowl anti-icing system
            H. Pilot and statistics
            I. Windows and windshield
              1. Control cabin window anti-icing system
              2. Windshield wipers
            J. Rain repellent system
            K. Water lines
            L. Interfacing
            M. Testing, troubleshooting, and repairing
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