Isuzu NHR NKR NPR NQR NPS Heating & Air Conditioning Workshop Manual – PDF

Description

Isuzu NHR NKR NPR NQR NPS Heating & Air Conditioning Workshop Manual LGHAC-WE-461(Section 1) – PDF DOWNLOAD

FILE DETAILS:

Isuzu NHR NKR NPR NQR NPS Heating & Air Conditioning Workshop Manual LGHAC-WE-461 (Section 1)- PDF DOWNLOAD

Language : English
Pages : 115
Downloadable : Yes
File Type : PDF

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TABLE OF CONTENTS:

Isuzu NHR NKR NPR NQR NPS Heating & Air Conditioning Workshop Manual LGHAC-WE-461 – PDF DOWNLOAD

TOP 0
HEATING AND AIR CONDITIONING 1
Sec00 SERVICE INFORMATION 4
TROUBLESHOOTING 5
HEATING CYCLE TROUBLESHOOTING 6
FAN SWITCH TROUBLESHOOTING 7
BLOWER MOTOR DOES NOT RUN 8
BLOWER MOTOR DOES NOT RUN IN CERTAIN POSITION 9
BLOWER MOTOR DOES NOT STOP AT “OFF” POSITION 9
AIR CONDITIONING CYCLE TROUBLESHOOTING 10
CHECKING REFRIGERANT SYSTEM WITH MANIFOLD GAUGE 11
MAGNETIC CLUTCH TROUBLESHOOTING 14
COMPRESSOR TROUBLESHOOTING 19
INDIVIDUAL INSPECTION 20
MAIN DATA AND SPECIFICATIONS 23
FIXING TORQUE 25
SPECIAL TOOLS 27
Sec1A HEATING AND VENTILATION 29
GENERAL DESCRIPTION 30
HEATER 30
CONTROL LEVER ASSEMBLY 31
VENTILATION 31
AIR SELECT LEVER 32
AIR SOURCE SELECT LEVER 32
FAN SWITCH LEVER 32
TEMPERATURE CONTROL LEVER 32
ON-VEHICLE SERVICE 34
Heater Unit/Heater Core 34
Heater Temperature Control Link Unit/Air Mix Door 37
Heater Mode Control Link Unit/Mode Door 39
Blower Assembly 41
Blower Link Unit/Mode Door 44
Blower Motor 46
Blower Filter 48
Ventilation Grille 49
Defroster Nozzle/Ventilation Duct 51
Control Lever Assembly 53
Control Panel Illumination Bulb 56
Resistor 57
Sec1B AIR CONDITIONING 58
GENERAL DESCRIPTION 60
Air Conditioning Refrigerant Cycle Construction 61
Compressor 62
Magnetic Clutch 63
Condenser 63
Receiver/Drier 63
Dual Pressure Switch 64
Evaporator 64
Expansion Valve 65
Electronic Thermostat 65
Refrigerant Line 65
Service Charge Valves 66
Air Conditioning Parts 67
ON-VEHICLE SERVICE 68
Precautions for Refrigerant-134a (R-134a) Air Conditioning System 68
Precautions for Replacement or Repair Of R-134a Air Conditioning Parts 71
COMPRESSOR 81
New Compressor Installation 83
Condenser Assembly 84
Receiver/Drier 86
Pressure Switch 88
Evaporator Assembly 89
Evaporator Core/Expansion Valve 92
A/C Switch 95
Refrigerant Line 97
Sec1D COMPRESSOR OVERHAUL 99
GENERAL DESCRIPTION100
GENERAL INFORMATION102
Compressor Oil102
SERVICE PROCEDURES104
Compressor Overhaul104

DESCRIPTION:

Isuzu NHR NKR NPR NQR NPS Heating & Air Conditioning Workshop Manual LGHAC-WE-461 (Section 1)- PDF DOWNLOAD

GENERAL DESCRIPTION:

HEATER:

• When the engine warming up, the warmed engine coolant is sent out into the heater core. The heater system supplies warm air into the passenger compartment to warm it up.
• Outside air is circulated through the heater core of the heater unit and then back into the passenger compartment.
• By controlling the mixture of outside air and heater core air, the most comfortable passenger compartment temperature can be selected and maintained.
• The temperature of warm air sent to the passenger compartment is controlled by the temperature control lever. This lever acts to open and close the air mix door, thus controlling the amount of air passed through the heater core.
• The air select lever, with its different modes, also allows you to select and maintain the most comfortable passenger compartment temperature.
• The air source select lever is used to select either “FRESH” for the introduction of the outside air, or “CIRC” for the circulation of the inside air.
• When the lever is set to “FRESH”, the outside air is always taken into the passenger compartment. When setting the lever to “CIRC” position, the circulation of air is restricted only to the inside air with no introduction of the outside air and the air in the passenger compartment gets warm quickened.
• However, the lever is normally set to “FRESH” to prevent the windshield from clouding.

G.B 05/03/24