Kia Carens. Manual — part 314

1. Discharge refrigeration system. Refer to operating instructions of you refrigerant recovery/recycling/charging

station for proper procedures.

2. Evacuate system to remove all air and moisture from it. Refer to operating instructions of your refrigerant

recovery/recycling/charging station for proper procedures.

3. Charge system with refrigerant. Refer to operating instructions of your refrigerant recovery/recycling

/charging station for proper procedures.

4. After charging, measure refrigerant pressure. Refer to “Checking Refrigerant Pressure".

5. If low-and high-pressure sides are still too high, replace receiver/drier.

No refrigerant circulation

Measurement pressure
Low-pressure : Below 20 psi (137 kPa, 1.40 kg/cm²)
High-pressure : Below 88 psi (608 kPa, 6.20 kg/cm²)

- Condition -

Refrigerant flow obstructed by moisture or dirt, causing freezing or blockage of expansion valve.

1. Step 1

Turn air conditioner OFF for about 10 minutes. Turn air conditioner ON to determine whether blockage is
due to moisture or dirt.

A. If caused by moisture : System will operate normally after being OFF for 10 minutes. (Ice melts and

relieves blockage.).

B. If caused by dirt : System remains abnormal after being OFF 10 minutes. Go to Step 2.

2. Step 2

(1) Remove expansion valve.

(2) Blow out dirt with compressed air.

(3) If unable to remove dirt, replace expansion valve.

(4) Evacuate, charge, and test system. Refer to operating instructions of your refrigerant recovery/recycling

/charging station for proper procedures.

Expansion valve stuck open

Measured pressure
Low-pressure : Above 35.6 psi (2445 kPa, 2.50 kg/cm²)
High-pressure : Below 88 psi (608 kPa, 6.20 kg/cm²)

- Condition - Insufficient cooling

1. Check whether there is frost or heavy dew on suction pipe (between cooling unit compressor).

2. If neither is found, refer to “Excessive Refrigerant or Insufficient Condenser Cooling".

3. If either is found, replace expansion valve.

Faulty compressor

Measured pressure
Low-pressure : 57~88 psi (392~608 kPa, 4.0~6.20 kg/cm²)
High-pressure : 107~152 psi (736~1,050 kPa, 7.50~10.7 kg/cm²)

- Condition - No cooling

1. Run engine at a fast idle.

2. Verify that A/C compressor clutch is ON when A/C switch and blower switch are ON.

3. If A/C compressor clutch remains OFF, refer to “A/C Compressor Clutch does not Operate.

Manifold gauge set

Fittings for attaching manifold gauge set are on the high-and low-pressure pipes.

1. Close both hand valves of manifold gauge set.

2. Connect the low-pressure hose to high-pressure gauge fitting.

3. Tighten hose nuts by hand only.

Leak test

After evacuating system, refer to operating instructions of your refrigerant recovery/recycling charging station
for proper procedures. Check for leaks.

1. Connect a full refrigerant container to the service valve.

2. Open the high-pressure manual valve to charge system with refrigerant gas.

3. When low-pressure gauge reads 14 psi (98 kPa), close high-pressure manual valve.

4. Use a gas leak detector to check the system for leaks. If a leak is found, repair faulty component or

connection, then evacuate system again. Refer to operating instructions of your refrigerant
recovery/recycling/charging station for proper procedures.

Checking refrigerant pressure

1. Connect manifold gauge set.

2. Operate engine at 2000 rpm and set air conditioner to maximum cooling.

3. Measure low-and high-pressure sides

Normal pressure
Low-pressure side: 20~41 psi (137~285 kPa, 1.40~2.91 kg-cm²)
High-pressure side: 185~263 psi (1.275~1.815 kPa, 13.0~18.5 kg-cm²)

2001 > 1.8L DOHC >

SPECIFICATIONS

Mechanical specifications

Item

Description

Tightening torque

Blower/Evaporator assembly mounting nuts

70~96lb-in (8~11N·m, 80~110kg-cm)

Compressor mounting bracket bolts (Front side)

23~35lb-in(31~47N·m, 3.2~4.8kg-cm)

Compressor mounting bracket bolts (Left side)

12~17lb-in(16~23N·m 1.6~2.3kg-cm)

Compressor mounting bolts

18~23lb-in(24~31N·m 2.4~3.2kg-cm)

Condenser fan mounting bolts

70~96lb-in(8~11N·m 80~110kg-cm)

Condenser mounting bolts

70~96lb-in(8~11N·m 80~110kg-cm)

Heater unit mounting nuts

70~96lb-in(8~11N·m 82~110kg-cm)

Receiver/Drier mounting bolts

44~52lb-in(5~6N·m 50~60kg-cm)

Receiver/Drier mounting bracket bolts

87~131lb-in(10~15N·m 1.0~1.5kg-cm)

Others specifications

Item

Description

Specifications

Cooling

Maximum cooling capacity
(450m³/h)

4500 ± 10% kcal/h

Air volume

305 CFM (500CMH)

Power consumption

252W-12V

Heating

Maximum heating
capacity (350m³/h)

4700 ± 10%kcal/h

Air volume

213CFM (350CMH)

Power consumption

252W-12V

Compressor

Oulet flow

155.3 cc/rev.

Number of cylinder

10

Maximum speed

9000 rpm

Oil (Capacity)

120 cc

Receiver/Drier

Desiccant used

ZEOLITE

Dual pressure switch

High-pressure control

OFF : 455psi (32kg/cm²)

DIFF : 85psi (6kg/cm²)

Low-pressure control

OFF : 28psi (2kg/cm²)

DIFF : 4psi (0.25kg/cm²)

Service ports

High pressure side

M10 × 1.25

Low pressure side

M9 × 1.0

Air filter

Replacement period

12,000km or 6months

Refrigerant (Charged amount)

R-134a (800 ± 50g)