4012.3.4 Connect the cable to the Outdoor Unit1. Remove the control board cover from the unit by loosening the screw.2. Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × 1.5mm2 flexible cord, type designation 245 IEC 57 or heavier cord.3. Connect the connection cable between indoor unit and outdoor unit according to the diagram below.Terminals on the indoor unit 1 2 3Colour of wiresTerminals on the outdoor unit 1 2 34. Secure the connection cable onto the control board with the holder.5. Attach the control board cover back to the original position with screw.6. For wire stripping and connection requirement, refer to instruction 12.2.4 of indoor unit.Earth Wirelonger thanothersAC wiresfor safetyreasonTerminalBoardHolderIndoor & outdoorconnection cableIndoor UnitIndoor & outdoorconnection cableWARNINGThis equipment must be properly earthed.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.12.3.5 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.