Hyundai Santa Fe (TM): Air conditioning System / Refrigerant Line. Repair procedures

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Heating,Ventilation And Air Conditioning / Air conditioning System / Refrigerant Line. Repair procedures

Replacement
[Front suction & Liquid pipe assembly]
1.
If a compressor is available, the air conditioner is operated for a few minutes in the engine idle state and then the engine is stopped.
2.
Disconnect the negative (-) battery terminal.
3.
Recover the refrigerant with a recovery/charging station.
4.
Remove the engine cover.
(Refer to Engine Mechanical System - "Engine Cover")
5.
Loosen the mounting bolts and separate the expansion valve (A) fron evaporator core.
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

6.
Loosen the mounting nuts and separate the suction line (A), discharge line (B).
Tightening torque :
19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb-ft)

7.
Press the lock pin and separate the APT sensor connector (A).
8.
Remove the engine room under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
9.
Remove the engine mounting braket.
(Refer to Engine Mechanical System - "Engine Mounting")
10.
Separate the compressor suction line (A) and discharge line (B) connection nuts and disconnect the line.
Tightening torque :
19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb-ft)
  
•
Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.
(Refer to General Information - "Lift and Support Points")

11.
Remove the refrigerant pipe line mounting nuts and braket bolt.
Tightening torque
Nut : 8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)
Bolt : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

12.
Loosen the mounting bolt and remove the Front suction & Liquid pipe assembly (A).
Tightening torque :
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

13.
Install in the reverse order of removal.
  
•
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
•
Tighten the bolt or nut joint to the specified torque.
•
Using a gas leak detector, check for refrigerant leakage.
•
Evacuate air in the refrigeration system and charge system with refrigerant.
Capacity :
R-134a (Single) : 650 ± 25g (20.9 ± 0.88oz)
R-134a (Dual) : 850 ± 25g (29.9 ± 0.88oz)
R-1234yf (Single) : 625 ± 25g (22.0 ± 0.88oz)
R-1234yf (Dual) : 800 ± 25g (28.2 ± 0.88oz)
[Refrigerant Line (Condenser)]
1.
Remove the front bumper assembly.
(Refer to Body (Interior and Exterior) - "Front Bumper Assembly")
2.
Recover the refrigerant with a recovery/charging station.
3.
Loosen the mounting nuts and separate the suction line (A), discharge line (B).
Tightening torque :
19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb-ft)

4.
Loosen the mounting nuts, and then disconnect the discharge line (A) and liquid line (B) from the condenser.
Tightening torque :
19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb-ft)

5.
Loosen the mounting bolt, remove the refrigerant line (Condenser) (A).
Tightening torque :
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

6.
Install in the reverse order of removal.
  
•
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
•
Tighten the bolt or nut joint to the specified torque.
•
Using a gas leak detector, check for refrigerant leakage.
•
Evacuate air in the refrigeration system and charge system with refrigerant.
Capacity :
R-134a (Single) : 650 ± 25g (20.9 ± 0.88oz)
R-134a (Dual) : 850 ± 25g (29.9 ± 0.88oz)
R-1234yf (Single) : 625 ± 25g (22.0 ± 0.88oz)
R-1234yf (Dual) : 800 ± 25g (28.2 ± 0.88oz)
[Rear Suction & Liquid Pipe Assembly]
1.
If a compressor is available, the air conditioner is operated for a few minutes in the engine idle state and then the engine is stopped.
2.
Disconnect the negative (-) battery terminal.
3.
Recover the refrigerant with a recovery/charging station.
4.
Remove the rear wheel guard [RH].
(Refer to Body - "Rear Wheel Guard")
5.
Loosen the mounting nuts and separate the suction line (A), discharge line (B).
Tightening torque :
19.6 - 23.5 N.m (2.0 - 2.4 kgf.m, 14.5 - 17.4 lb-ft)

6.
Loosen the mounting bolts , nuts and remove the engine roon under cover[RH].
Tightening torque :
8.8 - 13.7 N.m(0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

7.
Remove the refrigerant pipe line mounting nuts.
Tightening torque :
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

8.
Loosen the mounting bolt and remove the Rear suction & Liquid pipe assembly (A).
Tightening torque :
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

9.
Install in the reverse order of removal.
  
•
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
•
Tighten the bolt or nut joint to the specified torque.
•
Using a gas leak detector, check for refrigerant leakage.
•
Evacuate air in the refrigeration system and charge system with refrigerant.
Capacity :
R-134a (Single) : 650 ± 25g (20.9 ± 0.88oz)
R-134a (Dual) : 850 ± 25g (29.9 ± 0.88oz)
R-1234yf (Single) : 625 ± 25g (22.0 ± 0.88oz)
R-1234yf (Dual) : 800 ± 25g (28.2 ± 0.88oz)

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