Nissan 350Z Workshop Manual 2003 (4) PDF

ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
C
D
E
F
G
H
I
K
L
M
SECTION
A
B
ATC
AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) ?AIR BAG? and ?SEAT BELT PRE-TEN-
SIONER? .................................................................. 4
Precautions for Battery Service ................................ 4
Precautions for Working with HFC-134a (R-134a) ..... 5
CONTAMINATED REFRIGERANT ....................... 5
General Refrigerant Precautions .............................. 6
Lubricant Precautions .............................................. 6
Precautions for Refrigerant Connection ................... 6
ABOUT ONE-TOUCH JOINT ................................ 7
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ...................................................... 9
O-RING AND REFRIGERANT CONNECTION ... 10
Precautions for Servicing Compressor ....................11
Precautions for Service Equipment ........................ 12
RECOVERY/RECYCLING EQUIPMENT ............ 12
ELECTRONIC LEAK DETECTOR ...................... 12
VACUUM PUMP ................................................. 12
MANIFOLD GAUGE SET .................................... 12
SERVICE HOSES ............................................... 13
SERVICE COUPLERS ........................................ 13
REFRIGERANT WEIGHT SCALE ...................... 13
CALIBRATING ACR4 WEIGHT SCALE .............. 13
CHARGING CYLINDER ...................................... 14
Precautions for Leak Detection Dye ....................... 14
IDENTIFICATION ................................................ 14
IDENTIFICATION LABEL FOR VEHICLE ........... 14
Wiring Diagrams and Trouble Diagnosis ................ 14
PREPARATION ......................................................... 15
Special Service Tools ............................................. 15
HFC-134a (R-134a) Service Tools and Equipment ... 15
Commercial Service Tool ....................................... 18
REFRIGERATION SYSTEM ..................................... 19
Refrigerant Cycle ................................................... 19
REFRIGERANT FLOW ....................................... 19
FREEZE PROTECTION ..................................... 19
Refrigerant System Protection ............................... 19
REFRIGERANT PRESSURE SENSOR ............. 19
PRESSURE RELIEF VALVE ...............................19
V-6 Variable Displacement Compressor .................20
GENERAL INFORMATION .................................20
DESCRIPTION ....................................................21
Component Layout .................................................23
LUBRICANT ..............................................................24
Maintenance of Lubricant Quantity in Compressor ...24
LUBRICANT ........................................................24
LUBRICANT RETURN OPERATION ..................24
LUBRICANT ADJUSTING PROCEDURE FOR
COMPONENTS REPLACEMENT EXCEPT
COMPRESSOR ..................................................25
LUBRICANT ADJUSTING PROCEDURE FOR
COMPRESSOR REPLACEMENT .......................25
AIR CONDITIONER CONTROL ...............................27
Description of Air Conditioner LAN Control System ...27
System Construction ..............................................27
OPERATION ........................................................28
TRANSMISSION DATA AND TRANSMISSION
ORDER ...............................................................28
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL) .....................................29
FAN SPEED CONTROL ......................................29
INTAKE DOOR CONTROL .................................29
OUTLET DOOR CONTROL ................................29
MAGNET CLUTCH CONTROL ...........................30
SELF-DIAGNOSTIC SYSTEM ............................ 30
Description of Control System ................................31
Control Operation ...................................................32
TEMPERATURE CONTROL DIAL (POTENTIO
TEMPERATURE CONTROL) ..............................32
INTAKE SWITCH ................................................. 32
REAR WINDOW DEFOGGER SWITCH .............32
A/C SWITCH .......................................................32
MODE CONTROL DIAL ......................................32
FAN CONTROL DIAL ..........................................32
Discharge Air Flow .................................................33
System Description ................................................. 34
SWITCHES AND THEIR CONTROL FUNCTION ...34

Nissan 350Z Workshop Manual 2003 (4) Summary of Content

ATC-1AUTOMATIC AIR CONDITIONERJ AIR CONDITIONERCONTENTSCDEFGHIKLMSECTION ABATCAUTOMATIC AIR CONDITIONERPRECAUTIONS .......................................................... 4Precautions for Supplemental Restraint System (SRS) AIR BAG and SEAT BELT PRE-TEN-SIONER .................................................................. 4Precautions for Battery Service ................................ 4Precautions for Working with HFC-134a (R-134a) ..... 5CONTAMINATED REFRIGERANT ....................... 5General Refrigerant Precautions .............................. 6Lubricant Precautions .............................................. 6Precautions for Refrigerant Connection ................... 6ABOUT ONE-TOUCH JOINT ................................ 7FEATURES OF NEW TYPE REFRIGERANT CONNECTION ...................................................... 9O-RING AND REFRIGERANT CONNECTION ... 10Precautions for Servicing Compressor ....................11Precautions for Service Equipment ........................ 12RECOVERY/RECYCLING EQUIPMENT ............ 12ELECTRONIC LEAK DETECTOR ...................... 12VACUUM PUMP ................................................. 12MANIFOLD GAUGE SET .................................... 12SERVICE HOSES ............................................... 13SERVICE COUPLERS ........................................ 13REFRIGERANT WEIGHT SCALE ...................... 13CALIBRATING ACR4 WEIGHT SCALE .............. 13CHARGING CYLINDER ...................................... 14Precautions for Leak Detection Dye ....................... 14IDENTIFICATION ................................................ 14IDENTIFICATION LABEL FOR VEHICLE ........... 14Wiring Diagrams and Trouble Diagnosis ................ 14PREPARATION ......................................................... 15Special Service Tools ............................................. 15HFC-134a (R-134a) Service Tools and Equipment ... 15Commercial Service Tool ....................................... 18REFRIGERATION SYSTEM ..................................... 19Refrigerant Cycle ................................................... 19REFRIGERANT FLOW ....................................... 19FREEZE PROTECTION ..................................... 19Refrigerant System Protection ............................... 19REFRIGERANT PRESSURE SENSOR ............. 19PRESSURE RELIEF VALVE ...............................19V-6 Variable Displacement Compressor .................20GENERAL INFORMATION .................................20DESCRIPTION ....................................................21Component Layout .................................................23LUBRICANT ..............................................................24Maintenance of Lubricant Quantity in Compressor ...24LUBRICANT ........................................................24LUBRICANT RETURN OPERATION ..................24LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR ..................................................25LUBRICANT ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT .......................25AIR CONDITIONER CONTROL ...............................27Description of Air Conditioner LAN Control System ...27System Construction ..............................................27OPERATION ........................................................28TRANSMISSION DATA AND TRANSMISSION ORDER ...............................................................28AIR MIX DOOR CONTROL (AUTOMATIC TEM-PERATURE CONTROL) .....................................29FAN SPEED CONTROL ......................................29INTAKE DOOR CONTROL .................................29OUTLET DOOR CONTROL ................................29MAGNET CLUTCH CONTROL ...........................30SELF-DIAGNOSTIC SYSTEM ............................ 30Description of Control System ................................31Control Operation ...................................................32TEMPERATURE CONTROL DIAL (POTENTIO TEMPERATURE CONTROL) ..............................32INTAKE SWITCH ................................................. 32REAR WINDOW DEFOGGER SWITCH .............32A/C SWITCH .......................................................32MODE CONTROL DIAL ......................................32FAN CONTROL DIAL ..........................................32Discharge Air Flow .................................................33System Description ................................................. 34SWITCHES AND THEIR CONTROL FUNCTION ...34