Daewoo MATIZ User Manual

DAEWOO M-150 BL2
SECTION 7B
MANUAL CONTROL HEATING, VENTILATION,
AND AIR CONDITIONING SYSTEM
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in B unless otherwise
noted.
TABLE OF CONTENTS
Description and Operation 7B-2. . . . . . . . . . . . . . . . . .
System Components – Functional 7B-2. . . . . . . . . . .
Component Locator 7B-3. . . . . . . . . . . . . . . . . . . . . . . .
A/C System 7B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Information and Procedures 7B-5. . . . .
General Diagnosis 7B-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing the Refrigerant System 7B-5. . . . . . . . . . . . . .
Insufficient Cooling “Quick Check”
Procedure 7B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure-Temperature Relationship
of R-134a 7B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Testing the Refrigerant System 7B-7. . . . . . . . .
Air Conditioning System Diagnosis 7B-8. . . . . . . . . . . . .
Insufficient Cooling Diagnosis 7B-8. . . . . . . . . . . . . . .
Symptom Diagnosis 7B-11. . . . . . . . . . . . . . . . . . . . . . . .
Pressure Test Chart (R-134a System) 7B-11. . . . . . .
Repair Instructions 7B-13. . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 7B-13. . . . . . . . . . . . . . . . . . . . . . . . .
General A/C System Service Procedures 7B-13. . . . . .
O-Ring Replacement 7B-13. . . . . . . . . . . . . . . . . . . . .
Handling Refrigerant 7B-13. . . . . . . . . . . . . . . . . . . . . .
Handling of Refrigerant Lines and Fittings 7B-13. . .
Maintaining Chemical Stability in the
Refrigeration System 7B-14. . . . . . . . . . . . . . . . . . .
Discharging, Adding Oil, Evacuating, and
Charging Procedures for A/C System 7B-14. . . . .
Serviceable Components 7B-17. . . . . . . . . . . . . . . . . . . .
Control Assembly and Control Cables 7B-17. . . . . . .
Blower Motor and Cooling Hose 7B-17. . . . . . . . . . . .
Blower Resistor 7B-17. . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor Switch 7B-17. . . . . . . . . . . . . . . . . . . . . .
A/C Push Knob 7B-18. . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver–Dryer and Dual Cut Switch 7B-18. . . . . . . .
Receiver–Dryer Bracket 7B-20. . . . . . . . . . . . . . . . . . .
Compressor 7B-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condenser 7B-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/C High Pressure Pipe Line 7B-22. . . . . . . . . . . . . . .
A/C Low Pressure Pipe Line 7B-25. . . . . . . . . . . . . . .
Evaporator Unit and Drain Hose 7B-26. . . . . . . . . . . .
Unit Repair 7B-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evaporator Core and Expansion Valve 7B-28. . . . . .
Compressor Overhaul 7B-29. . . . . . . . . . . . . . . . . . . . .
Specifications 7B-30. . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifications 7B-30. . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 7B-30. . . . . . . . . .
Special Tools and Equipment 7B-31. . . . . . . . . . . . . .
Special Tools Table 7B-31. . . . . . . . . . . . . . . . . . . . . . .
Schematic and Routing Diagrams 7B-32. . . . . . . . . .
A/C Diagrams 7B-32. . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/C Airflow (Typical) 7B-33. . . . . . . . . . . . . . . . . . . . . .
A/C System (Typical) 7B-33. . . . . . . . . . . . . . . . . . . . .

Daewoo MATIZ Specifications

General

Brand	Daewoo
Model	MATIZ
Category	Automobile
Language	English