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Infiniti F50. Manual - part 119
ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
C
D
E
F
G
H
I
K
L
M
SECTION
A
B
ATC
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-SIONER” .................................................................. 4Precautions for Working with HFC-134a (R-134a)
..... 4
CONTAMINATED REFRIGERANT ....................... 5
General Refrigerant Precautions .............................. 5Lubricant Precautions .............................................. 5Precautions for Refrigerant Connection ................... 6
FEATURES OF NEW TYPE REFRIGERANT CONNECTION ...................................................... 6O-RING AND REFRIGERANT CONNECTION ..... 7
Precautions for Servicing Compressor ..................... 9Precautions for Service Equipment .......................... 9
RECOVERY/RECYCLING EQUIPMENT .............. 9ELECTRONIC LEAK DETECTOR ........................ 9VACUUM PUMP ................................................. 10MANIFOLD GAUGE SET .................................... 10SERVICE HOSES ............................................... 10SERVICE COUPLERS .........................................11REFRIGERANT WEIGHT SCALE .......................11CALIBRATING ACR4 WEIGHT SCALE ...............11CHARGING CYLINDER .......................................11
Precautions for Leak Detection Dye ....................... 12
IDENTIFICATION ................................................ 12IDENTIFICATION LABEL FOR VEHICLE ........... 12
Wiring Diagrams and Trouble Diagnosis ................ 12
PREPARATION ......................................................... 13
Special Service Tools ............................................. 13HFC-134a (R-134a) Service Tools and Equipment
... 13
Commercial Service Tool ....................................... 16
REFRIGERATION SYSTEM ..................................... 17
Refrigerant Cycle ................................................... 17
REFRIGERANT FLOW ....................................... 17FREEZE PROTECTION ..................................... 17
Refrigerant System Protection ............................... 17
REFRIGERANT PRESSURE SENSOR ............. 17PRESSURE RELIEF VALVE ............................... 17
V-6 Variable Displacement Compressor ................. 18
GENERAL INFORMATION ................................. 18
DESCRIPTION .................................................... 19
Component Layout ................................................. 22
LUBRICANT .............................................................. 23
Maintenance of Lubricant Quantity in Compressor ... 23
LUBRICANT ........................................................ 23LUBRICANT RETURN OPERATION .................. 23LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR .................................................. 24LUBRICANT ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT ....................... 24
AIR CONDITIONER CONTROL ............................... 26
Description of Air Conditioner LAN Control System ... 26System Construction .............................................. 26
OPERATION ........................................................ 27TRANSMISSION DATA AND TRANSMISSION ORDER ............................................................... 27AIR MIX DOOR CONTROL (AUTOMATIC TEM-PERATURE CONTROL) ..................................... 28FAN SPEED CONTROL ...................................... 28INTAKE DOOR CONTROL ................................. 28OUTLET DOOR CONTROL ................................ 28MAGNET CLUTCH CONTROL ........................... 29SELF-DIAGNOSTIC SYSTEM ............................ 29
Description of Control System ................................ 30Control Operation ................................................... 31
DISPLAY SCREEN .............................................. 31AUTO SWITCH (DRIVER SIDE) ......................... 31AUTO SWITCH (PASSENGER SIDE) ................ 31TEMPERATURE DIAL (POTENTIO TEMPERA-TURE CONTROL) (DRIVER SIDE) ..................... 31TEMPERATURE DIAL (POTENTIO TEMPERA-TURE CONTROL) (PASSENGER SIDE) ............ 31INTAKE SWITCH ................................................. 32DEFROSTER (DEF) SWITCH ............................. 32OFF SWITCH ...................................................... 32MODE SWITCH (DRIVER SIDE) ........................ 32MODE SWITCH (PASSENGER SIDE) ................ 32ECON (ECONOMY) SWITCH ............................. 32FAN SWITCH ...................................................... 32