Page 1524 of 2053

HEATING AND VENTILATION SYSTEM 7A-23
SSANGYONG MY2002
HEATER INLET HOSE
Removal and Installation Procedures
1. Partially drain the cooling system. Refer to Section
1D, Engine Cooling.
2. Remove the clip and slide rearward the inlet heater
hose clamp at the firewall.
3. Gently twist the hose from the left to right and
back again to loosen the bond between the hose
and the tube.
4. Remove the end of the hose from the tube.
KAA7A150
KAA7A160
KAA7A170
KAA7A180
5. Remove the clip and slide rearward the inlet heater
hose at the engine block.
6. Remove the inlet heater hose from the vehicle.
7. Installation should follow the removal procedure
in the reverse order.
HEATER OUTLET HOSE
Removal and Installation Procedures
1. Partially drain the cooling system. Refer to Section
1D, Engine Cooling.
2. Remove the clip and slide rearward the outlet
heater hose clamp at the firewall.
3. Gently twist the hose from the left to right and
back again to loosen the bond between the hose
and the tube.
4. Remove the end of the hose from the tube.
5. Remove the intake manifolds. Refer to Section 1C,
DOHC Engine Mechanical.
6. Remove the clip and slide rearward the outlet
heater hose at the thermostat housing.
7. Remove the outlet heater hose from the vehicle.
8. Installation should follow the removal procedure
in the reverse order.
Page 1525 of 2053

SSANGYONG MY2002
7A-24 HEATING AND VENTILATION SYSTEM
HEATER CORE
Removal and Installation Procedures
1. Disconnect the negative battery cable.
2. Remove the heater/air distribution case from the
vehicle. Refer to “Heater/Air Distribution Case
Assembly” in this section.
3. Remove the plastic holder and two screws that
secure the heater core to heater/air distributor case
assembly.
4. Slowly separate the heater/air distributor case as-
sembly and remove the heater core.
5. Installation should follow the removal procedure
in the reverse order.
REAR HEATER DUCT
This vehicle is equipped with rear seat heater ducts.
Should there be no airflow to the rear, look for any ob-
structions, such as items on the floor under the front
seats. Also check for air leaks between the heater/air
distributor assembly and the rear ducts.
KAA7A190
KAA7D130
KAA7D140
AIR FILTER
Removal and Installation Procedures
Notice: Replace earlier if air pollution is heavy.
1. Open the glove box and pull it inward to release
the upper left and right locking portion.
Notice: Remove the glove box by unscrewing
lower 2 screws, if necessary.
2. Press the 2 filter cover holds and remove the air
filter cover.
3. Remove the 2 air filters.
Notice: For installation, remember the installed
direction of the air filter before removal.
Replacement Interval Every 10,000 km
Page 1526 of 2053
HEATING AND VENTILATION SYSTEM 7A-25
SSANGYONG MY2002
SPECIFICATIONS
HEATER TERMERATURE SPECIFICATION
Nm
5
5
5
5Lb-Ft
-
-
-
- Heater/Air Distributor Case Retaining Bolt
Heater/Air Distributor Case-to-Blower Unit Connecting
Duct Nut
Heater/Air Distributor Case-to-Defroster Connecting
Duct Retaining Bolts
I/P Center Bracket BoltsLb-In
44
44
44
44Application
Heater Outlet Air Temperature
54 °C (129 °F)
59 °C (138 °F)
64 °C (147 °F)
68 °C (154 °F) -18 °C (0 °F)
-4 °C (25°F)
10 °C (50 °F)
24 °C (75 °F)Ambient Air Temperature
FASTENER TIGHTENING SPECIFICATIONS
HEATER UNIT
Description
54 °C (129 °F)
59 °C (138 °F)
64 °C (147 °F)
68 °C (154 °F) -18 °C (0 °F)
-4 °C (25°F)
10 °C (50 °F)
24 °C (75 °F)Application
Page 1530 of 2053

SECTION 7C
MANUAL CONTROL / SEMIAUTO
TEMPERATURE CONTROL HEATING,
VENTILATION AND AIR CONDITIONING
SYSTEM
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when
a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this
cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK
unless other-wise noted.
TABLE OF CONTENTS
Specifications.......................................................7C-2
Refrigerant..........................................................7C-2
Evaporator Unit....................................................7C-2
Blower Unit..........................................................7C-2
Compressor.........................................................7C-2
Condenser...........................................................7C-2
Receiver Drier......................................................7C-2
Pressure Switch...................................................7C-3
Air Filter...............................................................7C-3
Heater Unit..........................................................7C-3
Fastener Tightening Specifications.......................7C-3
Diagnosis..............................................................7C-4
Defectives in Fan Motor Circuit.............................7C-5
Defectives in Compressor Circuit.........................7C-6
Diagnosis Using the Manifold Gauge...................7C-7Component Locator.............................................7C-9
Ventilation............................................................7C-9
Heater System ................................................... 7C-11
Air Conditioner System...................................... 7C-12
Diesel Engine .................................................... 7C-12
Gasoline Engine................................................ 7C-13
Maintenance and Repair................................... 7C-14
Refrigerant Charging .......................................... 7C-14
Compressor Oil Replacement............................ 7C-18
Repair Instructions.............................................. 7C-19
On-Vehicle Service............................................... 7C-19
Condener.......................................................... 7C-19
Receiver Drier.................................................... 7C-21
Air - Conditioner Compressor............................. 7C-23
Heater and Air Conditioner Control Box.............. 7C-24
Air Filter............................................................. 7C-25
Page 1532 of 2053
MANUAL & SEMIAUTO-HVAC 7C-3
SSANGYONG MY2002
PRESSURE SWITCH
Type
High (OFF)
Low (ON)ApplicationDescriptionDirect
OFF : 32 ± 2 Kgf/cm
2, DIFF : 6 ± 2 Kgf/cm2
OFF : 2.0 ± 0.2 Kgf/cm2, ON : 2.1 ± 0.2 Kgf/cm2
AIR FILTER
ReplacementApplicationDescriptionEvery 12,000 km (replace earlier if air pollution is heavy)
HEATER UNIT
Heater Core Type
Heating Capacity
Heater Core Size (L x W x T)ApplicationDescription2-ROW
4,600 Kcal/h (AT 300 CMH)
219.5 x 151.8 x 52
FASTENER TIGHTENING SPECIFICATIONS
N•m
4 - 6
4 - 6
4 - 6
5 - 8
4 - 6
20 - 30
20 - 26Lb-Ft
2.9 - 4.4
2.9 - 4.4
2.9 - 4.4
3.7 - 5.9
2.9 - 4.4
14.7 - 22.1
14.7 - 19.1 Condenser Bolt
Condenser Fan Nut
Condenser Bolt
Receiver Drier Pipe Bolt
Receiver Drier Pipe Bolt (Condenser)
Pressure Pipe Bolt
Pressure Mounting BoltLb-In
35.4 - 53.1
35.4 - 53.1
35.4 - 53.1
44.2 - 70.8
35.4 - 53.1
177.0 - 265.5
177.0 - 230.1Application
Page 1533 of 2053

SSANGYONG MY2002
7C-4 MANUAL & SEMIAUTO-HVAC
DIAGNOSIS
Insufficient
cooling
Check blowing outlet
Normal outlet
Check outlet temperature
Check fan motor operation
Motor operates
with poor outletFan motor does
not operate
Blown fuse
Check for motor control circuit
Poor outlet or no
outlet
Intake grille is
cloggedFrosted evaporatorHigh temperatureNormal temperature
Check the case
Check heater Check
compressor
operation Warmeaporator
(A/C S/W off, Fan
‘4’)
Check with sight
glass
Check thermo amp Remove
cloggings
Normal compressorFaulty compressor
Check belt
Tension is normal
Check
magnetic
clutch
Check clutch
connection
Check wire Adjust tension
Bubble is not foundBubble is found
Check refrigerant
volume and air in
system Check
pressure
Loosened tension
Bubble is not foundBubble is found
Check refrigerant Check pressure
Faulty magnetic
electricFaulty clutchFaulty compressor operation
Check battery voltage
Check control switch
Check ground
Normal high/low pressureHigh high/low pressureHigh pressure : low
Low pressure : high
Check intake
and outlet
temperature Faulty A/C system
Faulty A/C mix door
Faulty vent, intake door Excessive refrigerant
Dirty cond., fan
Excessive oil in system
- No diffence in
temperature
- Fast pressure balanceLow intake temperature
Faulty comp. outlet Faulty evaporatorNoise
CompressorBeltOthers
Excessive oil
Faulty bearing
Faulty clutch Identify the place
Faulty belt
Belt line is correct
Check belt tension
Page 1534 of 2053
MANUAL & SEMIAUTO-HVAC 7C-5
SSANGYONG MY2002
DEFECTIVES IN FAN MOTOR CIRCUIT
Fan Motor Does Not Run
Blown fuse
Battery voltage is low
Faulty wiring
Faulty groundChecksActionCheck for short and replace fuse.
Check battery voltage.
Check connectors’ connection.
Do not apply grease. This can cause voltage down.
Remove body painting and completely ground,
Tighten ground bolts and make sure body ground
connection.
Fan Motor Runs in ‘4’position Only (‘3’, ‘2’, ‘1’ : Does Not Run)
Motor Runs With Poor Blowing
Blown resister temperature fuse
Air leakage in parts connectionChecksActionReplace resistor.
Check heater, cooling unit and blower for proper
connection.
Clogged or blocked intake grilleChecksActionClogged or blocked intake grille reduces blowing
capacity.
Frosted Evaporator
Faulty thermo ampChecksActionFrosted evaporator reduces cooling capacity.
Off compressor and maximize blowing capacity
Page 1540 of 2053
MANUAL & SEMIAUTO-HVAC 7C-11
SSANGYONG MY2002
HEATER SYSTEM
1 Heater-to Defrost Duct
2 Heater Unit
3 Mode Actuator Assembly
4 Heater Controller
5 Side Air Vent6 Coolant Outlet Hose
7 Coolant Inlet Hose
8 Heater-to-Blower Duct
9 Blower Unit
KAA7B450