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

Hyundai Santa Fe (TM) 2019-2024 Service 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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