Hose/Line HVAC: Service and Repair
REFRIGERANT LINE REMOVAL/INSTALLATION
SKYACTIV-G 2.0
1. Disconnect the negative battery cable. Removal and Replacement
2. Discharge the refrigerant. Refrigerant Charging
3. Set the coolant reserve tank out of the way. Service and Repair
4. Disconnect the refrigerant pressure sensor connector.
5. Remove in the order indicated in the table. Do not allow compressor oil to spill.
CAUTION:
- If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
6. Install in the reverse order of removal.
7. Perform the refrigerant system performance test. Refrigerant System Performance Test
MZR 2.0
1. Disconnect the negative battery cable. Removal and Replacement
2. Discharge the refrigerant. Refrigerant Charging
3. Remove the clip.
4. Remove the bolt.
5. Disconnect the cooler hose (HI) and cooler hose (LO).
6. Remove the P/S fluid reserve tank.
7. Set the coolant reserve tank out of the way. Service and Repair
8. Disconnect the refrigerant pressure sensor connector.
9. Remove the splash shield. Splash Shield Removal/Installation
10. Remove in the order indicated in the table. Do not allow compressor oil to spill.
CAUTION:
- If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
11. Install in the reverse order of removal.
12. Perform the refrigerant system performance test. Refrigerant System Performance Test
MZR 2.3 DISI Turbo
1. Disconnect the negative battery cable. Removal and Replacement
2. Discharge the refrigerant. Refrigerant Charging
3. Remove the charge air cooler cover. Service and Repair
4. Remove the insulator.
5. Set the coolant reserve tank out of the way. Service and Repair
6. Disconnect the refrigerant pressure sensor connector.
7. Remove in the order indicated in the table. Do not allow compressor oil to spill.
CAUTION:
- If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test. Refrigerant System Performance Test
MZR 2.5
1. Disconnect the negative battery cable. Removal and Replacement
2. Discharge the refrigerant. Refrigerant Charging
3. Set the coolant reserve tank out of the way. Service and Repair
4. Disconnect the refrigerant pressure sensor connector.
5. Remove in the order indicated in the table. Do not allow compressor oil to spill.
CAUTION:
- If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
6. Install in the reverse order of removal.
7. Perform the refrigerant system performance test. Refrigerant System Performance Test
Refrigerant Line Removal Note
Block joint type
1. Disconnect the block joint type pipes by grasping female side of the block with pliers or similar tool and holding firmly, then remove the connection bolt or nut.
Spring-lock coupling type
1. Set the SST.
2. While looking through the inspection hole of the SST, insert the protruding part of the SST until it makes contact with the cage section.
3. Use the SST to disconnect the male pipe or hose from the female by pulling the male pipe or hose.
NOTE:
- The male pipe or hose can be disconnected easily from the female pipe by pulling from the male pipe or hose while maintaining the pressure of the protruding part of the SST.
Refrigerant Line Installation Note
1. Apply compressor oil to the O-rings and connect the joints.
2. Tighten the joints.
Block joint type
1. Tighten the bolt of joint by hand.
2. Connect the block joint type pipes by grasping the female side of the block with pliers or similar tool and holding firmly, then tighten the connection bolt or nut with a torque wrench.
Spring-lock coupling type
1. Connect the male pipe or hose by twisting it onto female pipe until the garter spring at the male pipe or hose is over the flared end of female pipe.
NOTE:
- When the male pipe or hose is replaced, the indicator ring comes out after connecting to indicate that it is locked.
Cooler Hose (LO) Installation Note
1. After replacing the cooler hose (LO), add compressor oil to the refrigeration cycle.
Supplemental oil amount (approx. quantity)
- 10 ml {10 cc, 0.34 fl oz}
Cooler Pipe Installation Note
1. After replacing the cooler pipe, add compressor oil to the refrigeration cycle.
Supplemental oil amount (approx. quantity)
- 5 ml {5 cc, 0.2 fl oz}