PROCEDURE
INSTALL PIPING CLAMP
for Low Pressure without Sub-cool Accelerator:
Remove the vinyl tape from the open ends of the suction pipe sub-assembly and suction hose sub-assembly.
| *1 | Suction Hose Sub-assembly |
| *2 | Piping Clamp |
| *a | Groove |
Install a new piping clamp to the suction hose sub-assembly.
Note
Securely engage the inside step of the piping clamp into the groove of the suction hose sub-assembly.
Do not widen the opening of the piping clamp more than the diameter of the suction hose sub-assembly when installing it.
Do not install the piping clamp with the large diameter section in the wrong direction.
Thoroughly coat 2 new O-rings and the contact surface of the suction hose sub-assembly with compressor oil.
| Compressor Oil |
|---|
| ND-OIL 8 or equivalent |
Install the 2 O-rings to the suction hose sub-assembly.
Note
Keep the O-rings and sealing surface of the suction pipe sub-assembly free from foreign matter.
| *a | Large Diameter Section of Piping Clamp |
| *b | Alignment Mark |
Engage the suction pipe sub-assembly and suction hose sub-assembly by matching the alignment marks.
Note
Engage the parts by holding the pipe, not the piping clamp.
| *a | Large Diameter Section of Piping Clamp |
Securely insert the piping clamp to the point where the large diameter section of the piping clamp is covered by the suction pipe sub-assembly.
Tech Tips
When inserting, make sure that a click sound is heard.
Check that the suction hose sub-assembly is securely inserted by pulling it.
for Low Pressure with Sub-cool Accelerator:
Remove the vinyl tape from the open ends of the No. 2 air conditioner tube and accessory assembly and suction hose sub-assembly.
| *1 | Suction Hose Sub-assembly |
| *2 | Piping Clamp |
| *a | Groove |
Install a new piping clamp to the suction hose sub-assembly.
Note
Securely engage the inside step of the piping clamp into the groove of the suction hose sub-assembly.
Do not widen the opening of the piping clamp more than the diameter of the suction hose sub-assembly when installing it.
Do not install the piping clamp with the large diameter section in the wrong direction.
Thoroughly coat 2 new O-rings and the contact surface of the suction hose sub-assembly with compressor oil.
| Refrigerant | Compressor Oil |
|---|---|
| HFC-134a (R134a) | ND-OIL 8 or equivalent |
| HFO-1234yf (R1234yf) | ND-OIL 12 or equivalent |
Install the 2 O-rings to the suction hose sub-assembly.
Note
Keep the O-rings and sealing surface of the No. 2 air conditioner tube and accessory assembly free from foreign matter.
| *a | Large Diameter Section of Piping Clamp |
| *b | Alignment Mark |
Engage the No. 2 air conditioner tube and accessory assembly and suction hose sub-assembly by matching the alignment marks.
Note
Engage the parts by holding the pipe, not the piping clamp.
| *a | Large Diameter Section of Piping Clamp |
Securely insert the piping clamp to the point where the large diameter section of the piping clamp is covered by the No. 2 air conditioner tube and accessory assembly.
Tech Tips
When inserting, make sure that a click sound is heard.
Check that the suction hose sub-assembly is securely inserted by pulling it.
for High Pressure with Sub-cool Accelerator:
Remove the vinyl tape from the No. 2 air conditioner tube and accessory assembly and air conditioner tube and accessory assembly.
Sufficiently apply compressor oil to 2 new O-rings and the fitting surfaces of the air conditioner tube and accessory assembly.
| Refrigerant | Compressor Oil |
|---|---|
| HFC-134a (R134a) | ND-OIL 8 or equivalent |
| HFO-1234yf (R1234yf) | ND-OIL 12 or equivalent |
Install the 2 O-rings to the air conditioner tube and accessory assembly.
Note
Keep the O-rings and sealing surface of the No. 2 air conditioner tube and accessory assembly free from foreign matter.
Install the No. 2 air conditioner tube and accessory assembly to the air conditioner tube and accessory assembly.
| *a | Correct |
| *b | Incorrect |
| *c | No Gap |
| *d | Gap |
Install the piping clamp to the No. 2 air conditioner tube and accessory assembly.
Note
Make sure that the piping clamp is engaged securely with no gap.
INSTALL PIPING CLAMP (w/ Rear Air Conditioning System)
for Low Pressure without Sub-cool Accelerator:
Remove the vinyl tape from the suction pipe sub-assembly and air conditioning hose and accessory.
Sufficiently apply compressor oil to 2 new O-rings and the fitting surfaces of the suction pipe sub-assembly.
| Compressor Oil |
|---|
| ND-OIL 8 or equivalent |
Install the 2 O-rings to the suction pipe sub-assembly.
Install the suction pipe sub-assembly to the air conditioning hose and accessory.
| *a | Correct |
| *b | Incorrect |
| *c | No Gap |
| *d | Gap |
Install the piping clamp to the air conditioning hose and accessory.
Note
Make sure that the piping clamp is engaged securely with no gap.
for Low Pressure with Sub-cool Accelerator:
Remove the vinyl tape from the No. 2 air conditioning tube and accessory assembly and air conditioning hose and accessory.
Sufficiently apply compressor oil to 2 new O-rings and the fitting surfaces of the No. 2 air conditioning tube and accessory assembly.
| Compressor Oil |
|---|
| ND-OIL 8 or equivalent |
Install the 2 O-rings to the No. 2 air conditioning tube and accessory assembly.
Install the No. 2 air conditioning tube and accessory assembly to the air conditioning hose and accessory.
| *a | Correct |
| *b | Incorrect |
| *c | No Gap |
| *d | Gap |
Install the piping clamp to the air conditioning hose and accessory.
Note
Make sure that the piping clamp is engaged securely with no gap.
for High Pressure without Sub-cool Accelerator:
Remove the vinyl tape from the air conditioner tube and accessory assembly and air conditioning hose and accessory.
Sufficiently apply compressor oil to 2 new O-rings and the fitting surfaces of the air conditioner tube and accessory assembly.
| Compressor Oil |
|---|
| ND-OIL 8 or equivalent |
Install the 2 O-rings to the air conditioner tube and accessory assembly.
Install the air conditioner tube and accessory assembly to the air conditioning hose and accessory.
| *a | Correct |
| *b | Incorrect |
| *c | No Gap |
| *d | Gap |
Install the piping clamp to the air conditioning hose and accessory.
Note
Make sure that the piping clamp is engaged securely with no gap.
for High Pressure with Sub-cool Accelerator:
Remove the vinyl tape from the No. 2 air conditioning tube and accessory assembly and air conditioning hose and accessory.
Sufficiently apply compressor oil to 2 new O-rings and the fitting surfaces of the No. 2 air conditioning tube and accessory assembly.
| Compressor Oil |
|---|
| ND-OIL 8 or equivalent |
Install the 2 O-rings to the No. 2 air conditioning tube and accessory assembly.
Install the No. 2 air conditioning tube and accessory assembly to the air conditioning hose and accessory.
| *a | Correct |
| *b | Incorrect |
| *c | No Gap |
| *d | Gap |
Install the piping clamp to the No. 2 air conditioning tube and accessory assembly.
Note
Make sure that the piping clamp is engaged securely with no gap.
CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT
for HFC-134a (R134a):
for HFO-1234yf (R1234yf):
WARM UP ENGINE
for HFC-134a (R134a):
for HFO-1234yf (R1234yf):
INSPECT FOR REFRIGERANT LEAK
for HFC-134a (R134a):
for HFO-1234yf (R1234yf):