2007 Liberty KJ Factory Service Manual 24 - HEATING & AIR CONDITIONING

INSTALLATION

LHD MODEL

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT OIL - STANDARD PROCEDURE - REFRIGERANT OIL LEVEL). Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.

NOTE: When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT OIL - STANDARD PROCEDURE - REFRIGERANT OIL LEVEL).

NOTE: Replacement of the refrigerant line O-ring seals is required anytime a refrigerant line is opened. Failure to replace the rubber O-ring seals could result in a refrigerant system leak.




1. Position the A/C liquid line (2) into the engine compartment.
2. Remove the tape or plugs from the liquid line fittings and the condenser and evaporator ports.
3. Lubricate new rubber O-ring seals with clean refrigerant oil and install them on the liquid line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
4. Connect the A/C liquid line to the evaporator inlet tube (4) and install the secondary retaining clip (3)
(refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/COUPLER-REFRIGERANT LINE - INSTALLATION).
5. Install the A/C liquid line into the retaining clips (7) located on the inner fender (6).
6. Connect the A/C liquid line to the A/C condenser (5) and install the retaining nut (1). Tighten the nut to 22.5 N·m (200 in. lbs.).
7. Install the engine air cleaner housing (refer to 9 - ENGINE/AIR INTAKE SYSTEM/HOUSING-AIR CLEANER - INSTALLATION).
8. Reconnect the negative battery cable.
9. Evacuate the refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
10. Adjust the refrigerant oil level (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT OIL - STANDARD PROCEDURE - REFRIGERANT OIL LEVEL).
11. Charge the refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM CHARGE).

RHD MODEL

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT OIL - STANDARD PROCEDURE - REFRIGERANT OIL LEVEL). Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.

NOTE: When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT OIL - STANDARD PROCEDURE - REFRIGERANT OIL LEVEL).

NOTE: Replacement of the refrigerant line O-ring seals is required anytime a refrigerant line is opened. Failure to replace the rubber O-ring seals could result in a refrigerant system leak.




1. Position the two sections of the A/C liquid line (1 and 3) into the engine compartment.
2. Remove the tape or plugs from the liquid line fittings and the condenser and evaporator ports.
3. Lubricate new rubber O-ring seals with clean refrigerant oil and install them on the liquid line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
4. Connect the rear section of the A/C liquid line to the A/C evaporator (6) and install the retaining nut (7). Tighten the nut to 12.5 N·m (110 in. lbs.).
5. Engage the rear section of the A/C liquid line into the retaining clips (4) located on the dash panel (5).
6. Position the rear section of the A/C liquid line onto the stud located on the dash panel and install the retaining nut (8). Tighten the nut to 5 N·m (44 in. lbs.).
7. Connect the front section of the A/C liquid line to the rear section of the A/C liquid line and install the retaining nut (2). Tighten the nut to 22.5 N·m (200 in. lbs.).
8. Engage the front section of the A/C liquid line into the retaining clips located on the inner fender.
9. Install the front section of the A/C liquid line onto the A/C condenser
(refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/CONDENSER-A/C - INSTALLATION).
10. Install the engine air cleaner housing (refer to 9 - ENGINE/AIR INTAKE SYSTEM/HOUSING-AIR CLEANER - INSTALLATION).
11. Reconnect the negative battery cable.
12. Evacuate the refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
13. Adjust the refrigerant oil level (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/REFRIGERANT OIL - STANDARD PROCEDURE - REFRIGERANT OIL LEVEL).
14. Charge the refrigerant system (refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PROCEDURE - REFRIGERANT SYSTEM CHARGE).