Date post: | 27-Jan-2016 |
Category: |
Documents |
Upload: | bernard-benson |
View: | 215 times |
Download: | 1 times |
2013 NATEF Task Area A-7 Heating, Ventilation, and A/C7-2013
• 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 SystemsA. 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 SystemsA. 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 SystemsA. 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 SystemsA. 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 SystemsA. 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 SystemsA. 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 SystemsA. A/C System Diagnosis & Repair
Identify refrigerant type; select and connect proper gauge set; record pressure readings.
A7.A.5
Low SideBlue GaugeCompound GaugePressure & Vacuum
High SideRed GaugePressure Gauge up to 300 PSIG
P-1
NATEF Task Area A-7 Heating, Ventilation, and Air Conditioning SystemsA. 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 SystemsA. 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 SystemsA. 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 SystemsA. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsB. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsC. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsD. 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 SystemsE. 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 SystemsE. 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 SystemsE. 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 SystemsE. Refrigerant Recovery, Recycling, and Handling
Evacuate and charge A/C system; add refrigerant oil as required.A7.E.4
P-1