Nissan Qashqai J11. Manual - part 1052

HA-34

< REMOVAL AND INSTALLATION >

[TYPE 1]

COOLER PIPE AND HOSE

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Remove mounting bolt, and then disconnect high-pressure flexible hose from the high-pressure pipe 2.

CAUTION:

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

3.

Remove mounting bolt, and then disconnect high-pressure flexible hose from the compressor.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.

4.

Remove high-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

LOW-PRESSURE FLEXIBLE HOSE

LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000010451988

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Remove mounting bolt, and then disconnect low-pressure flexible hose from internal heat exchanger pipe.

CAUTION:

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

3.

Remove mounting bolt, and then disconnect low-pressure flexible hose from the compressor.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.

4.

Remove low-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

INTERNAL HEAT EXCHANGER PIPE

INTERNAL HEAT EXCHANGER PIPE : Removal and Installation

INFOID:0000000010451989

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Disengage fixing clip, and then remove insulator upper side.

3.

Remove mounting bolt, and then disconnect internal heat exchanger pipe from expansion valve.

COOLER PIPE AND HOSE

HA-35

< REMOVAL AND INSTALLATION >

[TYPE 1]

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CAUTION:

Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.

4.

Remove mounting bolts, and then disconnect high-pressure pipe 1 and low-pressure flexible hose from
internal heat exchanger pipe.

CAUTION:

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

5.

Remove mounting bolt, and then remove internal heat exchanger pipe.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

HIGH-PRESSURE PIPE 1

HIGH-PRESSURE PIPE 1 : Removal and Installation

INFOID:0000000010451990

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

.

3.

Remove mounting bolt, and then disconnect high-pressure pipe 1 from internal heat exchanger pipe.

CAUTION:

Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 1 from the condenser & liquid tank
assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Disconnect refrigerant pressure sensor harness connector.

6.

Remove mounting bolt, and then remove high-pressure pipe 1 from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

HIGH-PRESSURE PIPE 2

HIGH-PRESSURE PIPE 2 : Removal and Installation

INFOID:0000000010452008

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

.

3.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from high-pressure flexible hose.

HA-36

< REMOVAL AND INSTALLATION >

[TYPE 1]

COOLER PIPE AND HOSE

CAUTION:

Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from condenser & liquid tank assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Remove high-pressure pipe 2 from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR : Removal and Installation

INFOID:0000000010451994

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

.

3.

Clean refrigerant pressure sensor and its surrounding area, and then remove dust and rust from refriger-
ant pressure sensor.

CAUTION:

Be sure to clean carefully.

4.

Disconnect refrigerant pressure sensor connector.

5.

Use a adjustable wrench or other tool to hold the refrigerant pressure sensor mounting block, and then
remove the refrigerant pressure sensor from high-pressure pipe 1.

CAUTION:

• Never to damage high-pressure pipe 1.
• Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry

of air.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-ring with new one. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

CONDENSER

HA-37

< REMOVAL AND INSTALLATION >

[TYPE 1]

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CONDENSER

Exploded View

INFOID:0000000010451991

CONDENSER

CONDENSER : Removal and Installation

INFOID:0000000010451992

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-21,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-19, "Removal and Installation"

. 

3.

Remove mounting bolt, and then disconnect high-pressure pipe 1 from the condenser & liquid tank
assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from the condenser & liquid tank
assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Disengage fixing pawls, and then remove the condenser & liquid tank assembly from the vehicle.

CAUTION:

Never to damage core surface of condenser.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.

1.

Condenser &liquid tank assembly

2.

Radiator

: Pawl

JMIIA3533ZZ