SSANGYONG REXTON 2006.09 Manual page 441

01-6
6820-11
5) Handling of Refrigerant Lines and Fittings
1. Using too low or too high a torque when tightening a fitting can result in loose joints or
deformed joint parts.
2. Back up the opposing fitting to prevent the distortion of the connecting lines or the
components. Back up both the swaged fitting on the flexible hose connections and
the coupling to which it is attached two wrenches to prevent turning the fitting and
damaging the ground seat.
6) Maintaining Chemical Stability In the Refrigeration System
The efficient operation and life of the air conditioning system is dependent upon the chemical
stability of the refrigeration system.
When foreign materials, such as dirt, air or moisture, contaminate the refrigeration system, they
will change the stability of the refrigeration and the polyalkalene glycol (PAG) compressor oil.
They will also affect the pressure-temperature relationship, reduce efficient operation and can
possibly cause interior corrosion and abnormal wear of moving parts.
Observe the following practices to ensure chemical stability in the system:
1. Wipe away dirt or oil at and near any connection before opening that connection. This will
reduce the chance of dirt entering the system.
2. Cap, plug or tape both sides of a connection as soon as possible after opening the
connection. This will prevent the entry of dirt, foreign material and moisture.
3. Keep all tools clean and dry including the manifold gauge set and all replacement parts.
4. Use a clean and dry transfer device and container to add PAG refrigerant oil. This will
ensure that the oil remains as moisture-free as possible.
5. When opening an A/C system, have everything needed to perform all operations ready. Do
not leave the A/C system open any longer than necessary.
6. Evacuate and recharge any A/C system that has been opened.
AIR CONDITIONER
REXTON 2006.09