4310.2.4 Connect the Cable to the Indoor Unit1 The inside and outside connecting cable can be connected without removing the front grille.2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 ×1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord.3 Bind all the indoor and outdoor connecting cable with tape and route the connecting cable via theescapement.4 Remove the tapes and connect the connecting cable between indoor unit and outdoor unit according to thediagram below.5 Secure the connecting cable onto the control board with the holder (clamper).o Ensure the colour of wires of outdoor unit and terminal Nos. are the same to the indoor's repectively.o Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.10.2.4.1 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.