Nissan 350Z Workshop Maunual 2004 (4) PDF

ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
C
D
E
F
G
H
I
K
L
M
SECTION ATC
A
B
ATC
Revision: 2004 December 2004.5 350Z
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
CHARGING CYLINDER ...................................... 13
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 ... 16
Commercial Service Tools ...................................... 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
CAN Communication System Description ..............35
TROUBLE DIAGNOSIS ............................................36
CONSULT-II ............................................................36