5710.4.7. Electrical wiringAs to the main power source and cable size of outdoor unit, read the installation manual attached to the outdoor unit.1. Select a power source that is capable of supplying the current required by the air conditioner.2. Feed the power source to the unit via a distribution switch board designed for this purpose, the switch should disconnected allpoles with a contact separation of at least 3 mm.3. Always ground the air conditioner with a grounding wire and screw to meet the LOCAL REGULATIONS.4. Be sure to connect the wires correctly to terminal board with connecting the crimp tyre ring terminal to the wires.5. Be sure to turn off the main power before installing and connecting the remote controller.• Use the standard power cord for Europe (such as HO5RN-F or HO7RN-F which conforms to CENELEC (HAR) ratingspecifications) or use the cable based on IEC standard. (245IEC57, 245IEC66)• Remove a one mounting screw, remove the control box cover, and then connect the wires by following the procedure given in theillustration.WarningThe units must be installed in accordance with applicable national and local regulations.The units installed by a professional installer must be supplied from a dedicated electrical circuit.All electric work must be carried out by a qualified technician according to proper technical standards for electrical work andaccording to installation manual for installation work.If circuits with insufficient capacity are used, or if electrical work is not carried out properly, electric shocks or fire may result.Caution Be sure to install a current leakage breaker or circuit breaker to the main power supply, otherwise electric shocks may result.CautionBe sure to connect the unit to secure earth connection. (with a earth resistance of 100Ω or less)If the earthing work is not carried out properly, electric shock may result.WarningWiring shall be connected securely using specified cables and fix them securely so that external force of the cables may nottransfer to the terminal connection section. Imperfect connection and fixing leads to fire, etc.NoteIf momentarily turning on the power supply for both the indoor and outdoor units, do not turn the power off after at least 1 minutehas passed. (for the system’s automatic setting.)Turning off the power supply on the way may cause an abnormal operation.CONNECTING THE WIRES TO THE CONTROL BOXCaution Make sure that screws of the terminal are securely tightened.