Handling Refrigerant Lines & Fittings

Tighten all tubing connections as shown in "Fastener Tightening Specifications". INSUFFICIENT OR EXCESSIVE TORQUE WHEN TIGHTENING CAN RESULT IN LOOSE JOINTS OR DEFORMED JOINT PARTS. Either condition can result in refrigerant leakage. Refer to "Specifications".

All metal tubing lines should be free of dents or kinks to prevent loss of system capacity due to line restriction.

^ The flexible hose lines should never be bent to a radius of less than 4 times the diameter of the hose.
^ The flexible hose lines should never be allowed to come in contact with the exhaust manifold.
^ Do not allow the hose assembly to "Twist" towards the exhaust manifold during assembly.
^ Flexible hose lines should be inspected regularly for leaks or brittleness and replaced with new lines if deterioration or leaking is found.
^ When disconnecting any fitting in the refrigeration system, the refrigerant must first be recovered. Proceed very cautiously even though the refrigerant has been recovered. Open very slowly, keeping face and hands away so that no injury can occur if there happens to he liquid refrigerant in the line. If pressure is noticed when fitting is loosened, re-tighten fitting and re-perform Refrigerant Recovery. This condition may indicate a high side restriction which must he repaired before charging the A/C system.
^ In the event any refrigerant line is opened to the atmosphere, it should he immediately capped or taped to prevent entrance of moisture and dirt, which can cause internal compressor wear or plugged lines, in the condenser and evaporator core and expansion tubes or compressor inlet screens.
^ The use of the proper wrenches when making connections on O-ring fittings is important. The opposing fitting should always he backed up with a wrench to prevent distortion of connecting lines or components. When connecting the flexible hose connections, it is important that the swaged fitting and the flare nut, as well as the coupling to which it is attached, he held at the same time to prevent "Twisting" the hose assembly out of location during tightening of the joint.
^ O-rings and seats must he in perfect condition. A burr or piece of dirt may cause a refrigerant leak.
^ Partial hose replacement, splicing and clamp replacement CANNOT he performed on these type of hoses. For all repairs, warranty and non-warranty, replace the complete hose assembly.