2013 NATEF Task Area A-7 Heating, Ventilation, and A/C A. A/C System Diagnosis & Repair B. Refrigeration System Component D & R C. Heating, Ventilation & Engine Cooling D. Operating Systems & Related Controls E. Refrigerant Recover, Recycle & Handle

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Identify & interpret heating and air conditionng system concern; determine necessary action. A7.A.1 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Research applicable vehicle and service information, such as heating and air conditioning system operation, vehicle service history, service precautions, and technical service bulletins. A7.A.2 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Complete work order to include customer information, vehicle identifying information, verify customer concern, related service history, cause, & correction. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Locate and interpret vehicle and major component identification numbers (VIN, vehicle certification labels, calibration decals). “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Performance test A/C system; diagnose A/C system malfunctions using principles of refrigeration. Identify Components Only - MLR A7.A.3 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Identify abnormal operating noises in the A/C system; determine necessary action. A7.A.4 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Identify refrigerant type; select and connect proper gauge set; record pressure readings. A7.A.5 Low Side Blue Gauge Compound Gauge Pressure & Vacuum High Side Red Gauge Pressure Gauge up to 300 PSIG P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Leak test (electronic & dye) A/C system; determine necessary action. A7.A.6 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Inspect the condition and quantity of refrigerant oil removed from system; determine necessary action. A7.A.7 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Determine recommended oil and oil capacity for system application. A7.A.8 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems A. A/C System Diagnosis & Repair Using scan tool, observe and record related HVAC data and trouble codes. A7.A.9 P-3

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Inspect and replace A/C compressor drive belts, pulleys, and tensioners; determine necessary action. A7.B.1 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Inspect, test, and/or replace A/C compressor clutch components and/or assembly; check compressor clutch air gap; adjust as needed. A7.B.2 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Remove, inspect, and reinstall A/C compressor and mountings; determine recommended oil quantity. A7.B.3 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Identify hybrid vehicle A/C system electrical circuits, service and safety precautions. A7.B.4 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Determine need for A/C system filter; perform necessary action. A7.B.5 P-3

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Remove and inspect A/C system mufflers, hoses, lines, fittings, o-rings, seals, and service valves; perform necessary action. A7.B.6 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Inspect A/C condenser for airflow restrictions; perform necessary action. A7.B.7 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Remove and install receiver/drier or accumulator/drier; determine required oil quantity. A7.B.8 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Remove, inspect, and install expansion valve or orifice (expansion) tube. A7.B.9 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Inspect evaporator housing water drain; perform necessary action. A7.B.10 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Diagnose A/C system conditions that cause the protection devices (pressure. thermal, and PCM) to interrupt system operation; determine necessary action. A7.B.11 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Determine procedure to remove and reinstall evaporator; determine required oil quantity. A7.B.12 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems B. Refrigeration System Component Diagnosis and Repair Remove, inspect, and reinstall condenser; determine required oil quantity. A7.B.13 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Inspect engine cooling and heater systems hoses; perform necessary action. A7.C.1 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Inspect and test heater control valve(s); perform necessary action. A7.C.2 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Diagnose temperature control problems in the heater/ventilation system; determine necessary action. A7.C.3 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Determine procedure to remove, inspect, and reinstall heater core. A7.C.3 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Perform cooling system pressure tests; check coolant condition, inspect and test radiator, pressure cap, coolant recovery tank, and hoses; perform necessary action. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Inspect, test, and replace thermostat and housing. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Determine coolant condition and coolant type for vehicle application; drain and recover coolant. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Flush system; refill system with recommended coolant; bleed system. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Inspect & test fan, fan clutch, fan shroud, air dams; perform necessary action. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems C. Heating, Ventilation, and Engine Cooling System Diagnosis and Repair Inspect and test electric fan, fan control system and circuits; determine necessary action. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Diagnose malfunctions in the electrical controls of heating, ventilation, and A/C systems; determine action. “Oldie”

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Inspect and test A/C-heater blower, motors, resistors, switches, relays, wiring, and protection devices; perform necessary action. A7.D.1 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Diagnose A/C compressor clutch control systems; determine necessary action. A7.D.2 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Diagnose malfunctions in the vacuum, mechanical, and electrical components and controls of the heating, ventilation, and A/C (HVAC) system; determine necessary action. A7.D.3 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Inspect and test A/C-heater control panel assembly; determine necessary action. A7.D.4 P-3

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Inspect and test A/C-heater control cables, motors, and linkages; perform necessary action. A7.D.5 P-3

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Inspect and test A/C-heater ducts, doors, hoses, cabin filters, and outlets; perform necessary action. A7.D.6 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Identify the source of A/C system odors. A7.D.7 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems D. Operating Systems and Related Controls Diagnosis and Repair Check operation of automatic and semi-automatic heating, ventilation, and air- conditioning (HVAC) control systems; determine necessary action. A7.D.8 P-2

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems E. Refrigerant Recovery, Recycling, and Handling Perform correct use and maintenance of refrigerant handling equipment according to equipment manufacturer’s standards. A7.E.1 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems E. Refrigerant Recovery, Recycling, and Handling Identify and recover A/C system refrigerant. A7.E.2 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems E. Refrigerant Recovery, Recycling, and Handling Recycle, label, and store refrigerant. A7.E.3 P-1

NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning Systems E. Refrigerant Recovery, Recycling, and Handling Evacuate and charge A/C system; add refrigerant oil as required. A7.E.4 P-1