AUTT 1060 Syllabus

Subject Code

AUTT

Course Number

1060

Course Title

Automotive Climate Control Systems

Prerequisites

Prerequisites: AUTT 1010, AUTT 1020 or AUTT 1021 and AUTT 1022

Corequisites

None

Terms Offered

Credit Hours

Course Description

This course introduces the theory and operation of automotive heating and air conditioning systems. Students attain proficiency in inspecting, testing, servicing, and repairing heating and air conditioning systems and related components. Topics include air conditioning system diagnosis and repair; refrigeration system component diagnosis and repair; heating, ventilation, and engine cooling systems diagnosis and repair; operating systems and related controls diagnosis and repair; and refrigerant recovery, recycling, and handling.

Course Outcomes

A/C System Diagnosis and Repair

  • Identify and interpret heating and air conditioning problems; determine necessary action.  P-1
  • Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins.  P-1.
  • Performance test A/C system; identify problems.  P-1
  • Identify abnormal operating noises in the A/C system; determine necessary action.  P-2
  • Identify refrigerant type; select and connect proper gauge set; record temperature and pressure readings.  P-1
  • Leak test A/C system; determine necessary action.  P-1
  • Inspect the condition of refrigerant oil removed from the A/C system; determine necessary action.  P-2
  • Determine recommended oil and oil capacity for system application.  P-1
  • Using scan tool, observe and record related HVAC data and trouble codes.  P-3

 

Refrigeration System Component Diagnosis and Repair

  • Inspect and replace A/C compressor drive belts, pulleys, and tensioners; determine necessary action.  P-2
  • Inspect, test, and/or replace A/C compressor clutch components and/or assembly; check compressor clutch air gap and adjust as needed.  P-2
  • Remove, inspect, and reinstall A/C compressor and mountings; determine required oil quantity. P-2
  • Remove and inspect A/C system mufflers, hoses, lines, fittings, O-rings, seals, and service valves; perform necessary action.  P-2
  • Inspect A/C condenser for airflow restrictions; perform necessary action.  P-1
  • Remove, inspect, and reinstall receiver/drier or accumulator/drier; determine required oil quantity. P-2
  • Remove, inspect, and install expansion valve or orifice (expansion) tube.  P-1
  • Inspect evaporator housing water drain; perform necessary action.  P-1
  • Diagnose A/C system conditions that cause the protection devices (pressure, thermal, and PCM) to interrupt system operation; determine necessary action.  P-2.
  • Determine procedure to remove and reinstall evaporator; determine required oil quantity. P-2
  • Remove, inspect, and reinstall condenser; determine required oil quantity. P-2

Heating, Ventilation, and Engine Cooling Systems Diagnosis and Repair

  • Inspect engine cooling and heater system hoses and belts; perform necessary action. P-1
  • Inspect and test heater control valve(s); perform necessary action. P-2
  • Diagnose temperature control problems in the heater/ventilation system; determine necessary action. P-2
  • Determine procedure to remove, inspect and reinstall heater core. P-2

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.  P-1
  • Diagnose A/C compressor clutch control systems; determine necessary action.  P-2
  • Diagnose malfunctions in the vacuum, mechanical, and electrical components and controls of the heating, ventilation, and A/C (HVAC) system; determine necessary action.  P-2
  • Inspect and test A/C-heater control panel assembly; determine necessary action.  P-3
  • Inspect and test A/C-heater control cables, motors, and linkages; perform necessary action.  P-3
  • Inspect A/C-heater ducts, doors, hoses, cabin filters, and outlets; perform necessary action.  P-1
  •  Identify the source of A/C system odors.  P-2
  • Check operation of automatic or semi-automatic heating, ventilation, and air-conditioning (HVAC) control systems; determine necessary action.  P-2

Refrigerant Recovery, Recycling, and Handling

  • Perform correct use and maintenance of refrigerant handling equipment according to equipment manufacturer's standards.  P-1
  • Identify and recover A/C system refrigerant.  P-1
  • Recycle, label, and store refrigerant.  P-1
  • Evacuate and charge A/C system; add refrigerant oil as required.  P-1