3211.3.4 Connect the Cable to the Outdoor Unit1 Remove the control board cover from the unit byloosening the screw.2 Connection cable between indoor unit and outdoor unitshall be approved polychloroprene sheathed 4 x 1 .5mm2 flexible cord, type designation 245 IEC 57 orheavier cord.3 Connect the connection cable between indoor unit andoutdoor unit according to the diagram below.4 Secure the connection cable onto the control board withthe holder.5 Attach the control board cover back to the originalposition with screw.6 For wire stripping and connection requirement, refer toinstruction 11.2.5 of indoor unit.Note: Isolating Devices (Disconnecting means) should have minimum 3.0 mm contact gap. Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.11.3.5 Piping Insulation1 Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit InstallationDiagram. Please wrap the insulated piping end to prevent water from going inside the piping.2 If drain hose or connecting piping is in the room (where dew may form), please increase the insulation byusing POLY-E FOAM with thickness 6 mm or above.