STANDARD COMPETENCIES

 

 1. Verify the need for service or repair of HVAC systems based on unusual operating noises, smell, visual, and touch

    conditions: determine needed action.

 2. Retrieve diagnostic codes; determine needed action.

 3. Identify causes of outlet air temperature control problems in the HVAC system; determine needed action.

 4. Identify window fogging problems; determine needed action.

 5. Perform engine cooling system tests for leaks, protection level, contamination, coolant level, coolant type, temperature,

    and conditioner concentration; determine needed action.

 6. Inspect engine cooling and heating system hoses, lines, and clamps; determine needed action.

 7. Inspect and test radiator, thermostats, by-passes, housings, seals, pressure cap, and coolant recovery system

    (surge tank); determine needed action.

 8. Recover, flush, and refill with recommended coolant/additive package; bleed cooling system.

 9. Inspect thermostatic cooling fan system (hydraulic, pneumatic, and electronic) and fan shroud; replace as needed.

 10. Inspect and test heating system coolant control valve(s) and manual shut-off valves; determine needed action.

 11. Inspect and flush heater core; determine needed action.

 12. Identify causes of HVAC air and mechanical control problems; determine needed action.

 13. Inspect and test HVAC system air and mechanical control panel assemblies; determine needed action.

 14. Inspect, test, and adjust HVAC system air and mechanical control cables and linkages; determine needed action.

 15. Inspect and test HVAC system actuators and hoses; determine needed action.

 16. Inspect, test, and adjust HVAC system ducts, doors, and outlets; determine needed action.

 17. Identify causes of HVAC electrical control system problems; determine needed action.

 18. Inspect and test HVAC blower motors, resistors, switches, relays, modules, wiring, and protection devices; determine needed action.

 19. Inspect and test engine cooling/condenser fan motors, relays, modules, switches, sensors, wiring, and protection

     devices; determine needed action.

 20. Inspect and test electric actuator motors, relays/modules, switches, sensors, wiring, and protection devices; determine needed action.

 TOPICAL OUTLINE

 

  I. Heating, Ventilation, and Engine Cooling Systems

     A. Operating systems and controls

     B. Blower motor

     C. Compressor clutch

     D. HVAC control head

     E. Cables, motors and linkages

     F. Automatic or semi-automatic control systems

     G. Heater Cores

 II. Diesel Engine Cooling Systems

     A. Cooling System Inspection & Flushing

     B. Engine Coolants