Page 1537 of 2053

SSANGYONG MY2002
7C-8 MANUAL & SEMIAUTO-HVAC
1. The low-pressure and high-pressure are exces-
sive high.
2. There are a lot of moistures in the connection
of the low-side pressure
Cause SymptomAction
1. The low-pressure side indicates excessive high
and high-pressure indicates excessive low.
2. There is a moisture in the connection of the re-
ceiver-drier and the front/back of the expan-
sion valve.
1. The low-side pressure is high or normal inter-
mittently.
The dust and moisture
etc. are frozen at the
expansion valve
A gas leak in the heat
reducer
The mixed moisture is
frozen at the expansion
valve
The faulty expansion
valve, the improper
installation of the heat
reducer
Fail to control the flow
rate
Repair the receiver-drier
Replace the expansion
valve for the faulty heat
reducer
Repair the receiver-drier
and perform the
bleeding
Repair the receiver-drier
Check the oil
contamination etc.
1. The low-pressure is excessive high and high-
pressure is excessive low.
There is an oil leak in
the compressorReplace the compressor
YAD7B110
YAD7B130 YAD7B120
YAD7B140
Page 1538 of 2053
MANUAL & SEMIAUTO-HVAC 7C-9
SSANGYONG MY2002
COMPONENT LOCATOR
VENTILATION
KAA7C010
1 Foot / Face
2 Foot / Defroster
3 Foot4 Defroster
5 Face
Page 1539 of 2053
SSANGYONG MY2002
7C-10 MANUAL & SEMIAUTO-HVAC
Air Flow
KAA7C020
VENT Door
FOOT Door
DEF Door
INTAKE Door
AIR MIX DoorVENT
A
C
DB/L
B
B
DFOOT
C
A
DD/F
C
B
BDEF
C
C
A
REC
INDI.
On
-
-
-
AFRE
INDI.
Off
-
-
-
BTemperature
Control Lever Mode Switch Recirculation Switch
Switch
Door
-
-
-
-
-
-C AB
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
Page 1541 of 2053
SSANGYONG MY2002
7C-12 MANUAL & SEMIAUTO-HVAC
AIR CONDITIONER SYSTEM
DIESEL ENGINE
1 Compressor
2 High Pressure Hose
3 Condenser
4 Condenser Fan
5 Liquid Pipe (A)
6 Reveiver Drier
KAA7C030
7 Liquid (B)
8 Evaporator Assembly
9 Blower Unit
10 Heater Unit
11 Low Pressure Hose
Page 1542 of 2053
MANUAL & SEMIAUTO-HVAC 7C-13
SSANGYONG MY2002
GASOLINE ENGINE
1 Evaporator Assembly
2 Condenser Asembly
3 Screw-Hex SEMS (M8 x 1.5 x 35)
4 Fan & Shroud Assembly-Main
5 Fan & Shroud Assembly-Add
6 Supplement Assembly- c/ fan Mounting
7 Receiver & Bracket Assembly
8 Hose-Discharge
9 Bolt-Hex Sems (M8 x 1.25 x 30)
10 Hose Assembly-Suction11 Pipe Assembly-Suction
12 Pipe-Liquid-A
13 Pipe-Liquid-B
14 Resister-Condenser Fan
15 Clip-Closed-CT (M8)
16 Bolt-Hex FLG (M8 x 1.25 x 25)
17 Nut-Hex (M6 x 1.0)
18 Screw-Hex SEMS (M6 x 1.0 x 25)
19 Screw-Hex SEMS (M6 x 1.0 x 16)
KAA7C040
Page 1543 of 2053

SSANGYONG MY2002
7C-14 MANUAL & SEMIAUTO-HVAC
REFRIGERANT CHARGING
Installation of Manifold Gauge
1. Close both high/low pressure hand valves of
manifold gauge before installation of gauge to the
charging valve.
2. Both high/low pressure hand valves of manifold
gauge connect the appropriate charging valve.
Tighten the hose nuts by hand.
high pressure hand valve → high pressure
charging valve
low pressure hand valve → low pressure
charging valve
Discharging Refrigerant
1. Connect the manifold gauge to the charging valve.
2. Place the free end of the center hose in a shop
towel.
3. Slowly open the high pressure hand valve and
discharge refrigerant.
Notice: If refrigerant is allowed to escape too fast,
compressor oil will be drawn out of the system.
4. Check whether the shop towel gets wet in oil and
if wet, close the hand valve.
5. After the high pressure gauge reading drops below
3.5 kg/cm
2, slowly open the low pressure valve.
6. When both high and low pressure gauges reading
drops to 0 kg/cm
2, discharging is completed.
Evacuating Refrigeration System
Notice: The unit tank must contain a sufficient amount
of R-134a refrigerant for charging. Check the amount
of refrigerant in the tank. If there is less than 3.6 kg
(8 pounds) of refrigerant, add new refrigerant to the
tank.
1. Verify that the high-side and the low-side hoses
are connected to the A/C system. Open both the
high-side and the low-side valves on the unit’s
control panel.
2. Open both the gas and the liquid valves on the
tank.
YAD7B150
YAD7B160
YAD7B170
MAINTENANCE AND REPAIR
Page 1544 of 2053

MANUAL & SEMIAUTO-HVAC 7C-15
SSANGYONG MY2002
Important: Refer to the manufacturer’s
instructions for the charging station in use. It is
necessary to evacuate the system before
recharging it with new or recycled refrigerant.
3. Start the vacuum pump and begin the evacuation
process. Non-condensable gases (mostly air) are
vented from the tank automatically during the
recycling process. The pressure being released
may be heard.
4. Check for leaks in the system. Refer to the
manufacturer’s instructions for the charging
station in use.
Important: Change the vacuum pump oil
frequently. Refer to the manufacturer’s
instructions for the charging station in use.
Check for Refrigerant Leaks
1. Connect the center hose of the gauge to the
refrigerant tank.
2. Open the high pressure valve of the gauge to
charge with refrigerant gas.
3. Charge until the low pressure gauge reads 1.0 kg/cm
2
and close the valve.
4. Using a gas leak detector, check the system for
leaks.
5. If any leak is found, replace O-ring or repair the
faulty connection.
How to Use the Tap Valve
1. Rotate the handle counterclockwise fully before
connecting the valve to the refrigerant tank.
2. Rotate the disk counterclockwise fully.
3. Connect the center hose to the valve fitting and
then rotate the disk clockwise fully by hand.
4. Rotate the handle clockwise to drill the sealed
hole.
5. Remove the hose nut securing the center fitting
of the manifold gauge and then tighten the nut
again in a few seconds.
YAD7B180
YAD7B190
YAD7B200