Refrigerant Line Connections

Install new O-rings, if required. When disconnecting or connecting lines, use two wrenches to prevent the connecting portion from twisting or becoming damaged.

When connecting the refrigerant line at the block joint, securely insert the projecting portion of the joint portion into the connecting hole on the unit side and secure with a bolt.




Apply specified compressor oil to the O-rings prior to connecting.

CAUTION: Compressor (PAG) oil to be used varies according to compressor model. Be sure to apply oil specified for the model compressor.




O-rings must be closely aligned with raised portion of refrigerant line.




Insert nut into union. First tighten nut by hand as mush as possible. Then, tighten nut to specified torque.