4411.3.4 Connect the Cable to the Outdoor Unit1 Remove the control board cover from the unitby loosening the screw.2 Connection cable between indoor unit andoutdoor unit shall be approvedpolychloroprene sheathed 4 × 1.5 mm2 (1.0 ~1.75HP) or 4 × 2.5 mm2 (2.0 ~ 2.5HP) flexiblecord, type designation 60245 IEC 57 orheavier cord. Do not use joint connectioncable. Replace the wire if the existing wire(from concealed wiring, or otherwise) is tooshort. Allowable connection cable length ofeach indoor unit shall be 30 m or less.Terminals on the outdoor unitColour of wiresTerminals on the indoor unit1122333 Secure the cable onto the control board withthe holder (clamper).4 Attach the control board cover back to theoriginal position with screw.5 For wire stripping and connection requirement,refer to instruction 11.2.4 of indoor unit.Earth Wirelonger thanothers ACwires forsafety reasonTerminalBoardHolderIndoor and outdoorcable connectionIndoor UnitWARNINGThis equipment must be properly earthed. Earth wire shall be Yellow/Green (Y/G) in colourand 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.11.3.5.1 Cutting and flaring the piping1 Please cut using pipe cutter and then remove the burrs.2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the pipingend down to avoid the metal powder entering the pipe.3 Please make flare after inserting the flare nut onto the copper pipes.1. To cut■ Improper flaring ■InclineddamagedCrackedthicknessSurface Uneven3. To flareBarRed arrow markHandleCoreYokeClamp handleBar 0 – 0.5 mmCopperpipeReamer2. To remove burrsPoint downPipeWhen properly flared, the internal surface of theflare will evenly shine and be of even thickness.Since the flare part comes into contact with theconnections, carefully check the flare finish.