l The power supply shall be connected from the outdoor side. (For models with electric-aidedheating function, the power supply to the indoor unit shall be connected at the indoor sideThe power cord size is 3 x (1.25-1.5)mm2, type of YZW).l A separate power circuit shall be supplied and connected by a qualified electrician accordingto the wiring rules specified in the corresponding national standard.l A current leakage breaker must be installed.l The connection method of power cord is " Y " type. If the power flexible cord is damaged, itshall be replaced by the manufacturer or its service department or similar qualified technicianso as to avoid risks.l Power cord plug: L should be connected to the live wire, N should be connected to the neutralwire and to the ground wire.l Connection wire size: 3 x (1.25-1.5) mm2, type of YZW.l Signal transmission wire size: 2 x (0.75-1.25) mm2 (shielded wire).l Power cord, connection wire and signal wire shall be provided by the user.Installation procedureElectrical requirementsPipe cutting and expandingIf the pipe is too long or the flare is damaged,it needs to be cut or expanded.1. Pipe cutting 2. Removing burrs3.Insertion nut 4. Pipe expansionPipe expanderSlope Damage Bur Partial OverlongCorrect IncorrectPipe expansion dimensions as follows:SpecificationLiquid pipeLiquid pipeGas pipeGas pipe6.35 mm (1/4") 0.8 ~ 1.59.52 mm (3/8") 1.0 ~ 1.812.7 mm (1/2") 1.2 ~ 2.015.88 mm (5/8") 1.4 ~2.2Pipe diameter ÿ Size A (mm)19A