Download MTC Air Conditioner Specifications

Intake Door Motor Circuit ........................................ 39
INSPECTION FLOW ........................................... 39
COMPONENT DESCRIPTION ............................ 39
DIAGNOSIS PROCEDURE FOR INTAKE DOOR
MOTOR ............................................................... 40
Blower Motor Circuit ............................................... 42
INSPECTION FLOW ........................................... 42
DIAGNOSIS PROCEDURE FOR BLOWER
MOTOR ............................................................... 42
COMPONENT INSPECTION .............................. 45
Magnet Clutch Circuit ............................................. 46
INSPECTION FLOW ........................................... 46
DIAGNOSIS PROCEDURE FOR MAGNET
CLUTCH .............................................................. 47
ELECTRICAL COMPONENT INSPECTION ....... 51
Insufficient Cooling ................................................. 52
INSPECTION FLOW ........................................... 52
PERFORMANCE TEST DIAGNOSIS ................. 54
PERFORMANCE CHART ................................... 56
TROUBLE DIAGNOSIS FOR UNUSUAL PRESSURE ................................................................... 57
Insufficient Heating ................................................. 60
INSPECTION FLOW ........................................... 60
Noise ...................................................................... 61
INSPECTION FLOW ........................................... 61
CONTROLLER .......................................................... 62
Removal and Installation of Heater Control Panel... 62
REMOVAL ........................................................... 62
INSTALLATION .................................................... 62
Disassembly and Assembly .................................... 62
BLOWER UNIT ......................................................... 63
Removal and Installation ........................................ 63
REMOVAL ........................................................... 63
INSTALLATION .................................................... 63
Disassembly and Assembly .................................... 64
BLOWER MOTOR .................................................... 65
Removal and Installation ........................................ 65
REMOVAL ........................................................... 65
INSTALLATION .................................................... 65
INTAKE DOOR MOTOR ........................................... 66
Removal and Installation ........................................ 66
REMOVAL ........................................................... 66
INSTALLATION .................................................... 66
BLOWER FAN RESISTOR ....................................... 67
Removal and Installation ........................................ 67
REMOVAL ........................................................... 67
INSTALLATION .................................................... 67
IN-CABIN MICROFILTER ......................................... 68
Removal and Installation ........................................ 68
FUNCTION .......................................................... 68
REPLACEMENT TIMING .................................... 68
REPLACEMENT PROCEDURES ....................... 68
HEATER & COOLING UNIT ASSEMBLY ................. 69
Removal and Installation ........................................ 69
REMOVAL ........................................................... 69
INSTALLATION .................................................... 70
Disassembly and Assembly .................................... 71
MODE DOOR ............................................................ 72
Mode Door Cable Adjustment ................................ 72
Revision: 2006 July
AIR MIX DOOR ..........................................................73
Air Mix Door Cable Adjustment ...............................73
HEATER CORE .........................................................74
Removal and Installation .........................................74
REMOVAL ............................................................74
INSTALLATION ....................................................74
DUCTS AND GRILLES .............................................75
Removal and Installation .........................................75
REMOVAL ............................................................75
INSTALLATION ....................................................78
REFRIGERANT LINES .............................................79
HFC-134a (R-134a) Service Procedure ..................79
SETTING OF SERVICE TOOLS AND EQUIPMENT ...................................................................79
Components ............................................................81
Removal and Installation of Compressor ................81
REMOVAL ............................................................81
INSTALLATION ....................................................82
Removal and Installation of Compressor Clutch .....83
REMOVAL ............................................................83
INSTALLATION ....................................................85
Removal and Installation of Low-pressure Flexible
Hose ........................................................................86
REMOVAL ............................................................86
INSTALLATION ....................................................86
Removal and Installation of High-pressure Flexible
Hose ........................................................................87
REMOVAL ............................................................87
INSTALLATION ....................................................87
Removal and Installation of High-pressure Pipe .....87
REMOVAL ............................................................87
INSTALLATION ....................................................88
Removal and Installation of Condenser ..................88
REMOVAL ............................................................88
INSTALLATION ....................................................89
Removal and Installation of Liquid Tank .................89
REMOVAL ............................................................89
INSTALLATION ....................................................89
Removal and Installation for Refrigerant Pressure
Sensor .....................................................................90
REMOVAL ............................................................90
INSTALLATION ....................................................90
Removal and Installation of Evaporator ..................90
REMOVAL ............................................................90
INSTALLATION ....................................................91
Removal and Installation of Expansion Valve .........91
REMOVAL ............................................................91
INSTALLATION ....................................................91
Checking for Refrigerant Leaks ..............................91
Checking System for Leaks Using the Fluorescent
Leak Detector ..........................................................92
Dye Injection ...........................................................92
Electrical Leak Detector ..........................................92
PRECAUTIONS FOR HANDLING LEAK
DETECTOR .........................................................92
CHECKING PROCEDURE ..................................93
SERVICE DATA AND SPECIFICATIONS (SDS) ......95
Compressor ............................................................95
Lubricant .................................................................95
MTC-2
2006 X-Trail