Hose/Line HVAC: Service and Repair

Refrigerant Lines:

1. DISCHARGE REFRIGERANT IN REFRIGERATION SYSTEM

2. REPLACE FAULTY TUBE OR HOSE

NOTE: Cap the open fittings immediately to keep moisture or dirt out of the system.

3. TORQUE CONNECTIONS TO SPECIFIED TORQUE

NOTE: Connections should not be torque tighter than the specified torque.

Compressor x Suction hose
Torque: 10 N.m (100 kg.cm, 7 ft.lb)

Compressor x Discharge hose
Torque: 10 N.m (100 kg.cm, 7 ft.lb)

Condenser x Liquid tube
Torque: 10 N.m (100 kg.cm. 7 ft.lb)

Receiver x Liquid tube
Torque: 5.4 N.m (55 kg.cm. 48 in..lb)

Cooling unit x Liquid tube
Torque: 10 N.m (100 kg.cm, 7 ft.lb)

Cooling unit x Suction tube
Torque: 10 N.m (100 kg.cm, 7 ft.lb)

Liquid lines
Torque: 10 N.m (100 kg.cm, 7 ft.lb)

Suction lines
Torque: 10 N.m (100 kg.cm, 7 ft.lb)

4. EVACUATE AIR IN REFRIGERATION SYSTEM AND CHARGE WITH REFRIGERANT

Specified amount:
850 ± 50 g (30.00 ± 1.76 oz.)

5. INSPECT FOR LEAKAGE OF REFRIGERANT
Using a gas leak detector, check for leakage of refrigerant.
Leakage of Refrigerant

6. INSPECT AIR CONDITIONING OPERATION