Daikin FXMA50A5VEB Installer And User Manual

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2 | General safety precautionsInstaller and user reference guide10FXMA-AVRV system air conditioner4P680920-1 – 2022.01WARNING▪ ONLY use copper wires.▪ Make sure the field wiring complies with the applicable legislation.▪ All field wiring MUST be performed in accordance with the wiring diagramsupplied with the product.▪ NEVER squeeze bundled cables and make sure they do NOT come in contact withthe piping and sharp edges. Make sure no external pressure is applied to theterminal connections.▪ Make sure to install earth wiring. Do NOT earth the unit to a utility pipe, surgeabsorber, or telephone earth. Incomplete earth may cause electrical shock.▪ Make sure to use a dedicated power circuit. NEVER use a power supply shared byanother appliance.▪ Make sure to install the required fuses or circuit breakers.▪ Make sure to install an earth leakage protector. Failure to do so may causeelectrical shock or fire.▪ When installing the earth leakage protector, make sure it is compatible with theinverter (resistant to high frequency electric noise) to avoid unnecessary openingof the earth leakage protector.CAUTION▪ When connecting the power supply: connect the earth cable first, before makingthe current-carrying connections.▪ When disconnecting the power supply: disconnect the current-carrying cablesfirst, before separating the earth connection.▪ The length of the conductors between the power supply stress relief and theterminal block itself MUST be as such that the current-carrying wires aretautened before the earth wire is in case the power supply is pulled loose fromthe stress relief.NOTICEPrecautions when laying power wiring:▪ Do NOT connect wiring of different thicknesses to the power terminal block (slackin the power wiring may cause abnormal heat).▪ When connecting wiring which is the same thickness, do as shown in the figureabove.▪ For wiring, use the designated power wire and connect firmly, then secure toprevent outside pressure being exerted on the terminal board.▪ Use an appropriate screwdriver for tightening the terminal screws. A screwdriverwith a small head will damage the head and make proper tightening impossible.▪ Over-tightening the terminal screws may break them.Install power cables at least 1 meter away from televisions or radios to preventinterference. Depending on the radio waves, a distance of 1 meter may NOT besufficient.