Index Infiniti Infiniti M45 (Y34) - service repair manual 2004 year
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Infiniti M45 (Y34). Manual - part 129
ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
C
D
E
F
G
H
I
K
L
M
SECTION
ATC
A
B
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 ....................... 4
General Refrigerant Precautions .............................. 5Lubricant Precautions .............................................. 5Precautions for Refrigerant Connection ................... 5
FEATURES OF NEW TYPE REFRIGERANT CONNECTION ...................................................... 6O-RING AND REFRIGERANT CONNECTION ..... 7
Precautions for Servicing Compressor ..................... 8Precautions for Service Equipment .......................... 9
RECOVERY/RECYCLING EQUIPMENT .............. 9ELECTRONIC LEAK DETECTOR ........................ 9VACUUM PUMP ................................................... 9MANIFOLD GAUGE SET ...................................... 9SERVICE HOSES ................................................. 9SERVICE COUPLERS ........................................ 10REFRIGERANT WEIGHT SCALE ...................... 10CHARGING CYLINDER ...................................... 10
Precautions for Leak Detection Dye ........................11
IDENTIFICATION .................................................11IDENTIFICATION LABEL FOR VEHICLE ............11
Wiring Diagrams and Trouble Diagnosis .................11
PREPARATION ......................................................... 12
Special Service Tools ............................................. 12HFC-134a (R-134a) Service Tools and Equipment
... 12
Commercial Service Tools ...................................... 15
REFRIGERATION SYSTEM ..................................... 16
Refrigerant Cycle ................................................... 16
REFRIGERANT FLOW ....................................... 16FREEZE PROTECTION ..................................... 16
Refrigerant System Protection ............................... 16
REFRIGERANT PRESSURE SENSOR ............. 16PRESSURE RELIEF VALVE ............................... 16
V-6 Variable Displacement Compressor ................. 17
GENERAL INFORMATION ................................. 17
DESCRIPTION .................................................... 18
Component Layout ................................................. 21
LUBRICANT .............................................................. 22
Maintenance of Lubricant Quantity in Compressor ... 22
LUBRICANT ........................................................ 22LUBRICANT RETURN OPERATION .................. 22LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR .................................................. 23LUBRICANT ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT ....................... 23
AIR CONDITIONER CONTROL ............................... 25
Description of Air Conditioner LAN Control System ... 25System Construction .............................................. 25
OPERATION ........................................................ 26TRANSMISSION DATA AND TRANSMISSION ORDER ............................................................... 26AIR MIX DOOR CONTROL (AUTOMATIC TEM-PERATURE CONTROL) ..................................... 27FAN SPEED CONTROL ...................................... 27INTAKE DOOR CONTROL ................................. 27OUTLET DOOR CONTROL ................................ 27MAGNET CLUTCH CONTROL ........................... 28SELF-DIAGNOSTIC SYSTEM ............................ 28
Description of Control System ................................ 29Control Operation ................................................... 30
DISPLAY SCREEN .............................................. 30AUTO SWITCH (DRIVER SIDE) ......................... 30AUTO SWITCH (PASSENGER SIDE) ................ 30TEMPERATURE DIAL (POTENTIO TEMPERA-TURE CONTROL) (DRIVER SIDE) ..................... 30TEMPERATURE DIAL (POTENTIO TEMPERA-TURE CONTROL) (PASSENGER SIDE) ............ 30INTAKE SWITCH ................................................. 31DEFROSTER (DEF) SWITCH ............................. 31OFF SWITCH ...................................................... 31MODE SWITCH (DRIVER SIDE) ........................ 31MODE SWITCH (PASSENGER SIDE) ................ 31ECON (ECONOMY) SWITCH ............................. 31FAN SWITCH ...................................................... 31