Daikin VRV IV+ RXYTQ8U5/U7YF Installation And Operation Manual

3 User safety instructionsInstallation and operation manual4RXYTQVRV IV+ heat pump for high ambient temperatures4P546223-1C – 2021.11WARNINGAny gas or oil remaining inside the stop valve may blow offthe spun piping.If these instructions are NOT followed correctly it mayresult in property damage or personal injury, which may beserious depending on the circumstances.WARNINGNEVER remove the spun piping by brazing.Any gas or oil remaining inside the stop valve may blow offthe spun piping.WARNING▪ ONLY use R410A as refrigerant. Other substancesmay cause explosions and accidents.▪ R410A contains fluorinated greenhouse gases. Itsglobal warming potential (GWP) value is 2087.5. DoNOT vent these gases into the atmosphere.▪ When charging refrigerant, ALWAYS use protectivegloves and safety glasses.CAUTIONDo NOT push or place redundant cable length in the unit.WARNING▪ If the power supply has a missing or wrong N-phase,equipment might break down.▪ Establish proper earthing. Do NOT earth the unit to autility pipe, surge absorber, or telephone earth.Incomplete earthing may cause electrical shock.▪ Install the required fuses or circuit breakers.▪ Secure the electrical wiring with cable ties so that thecables do NOT come in contact with sharp edges orpiping, particularly on the high-pressure side.▪ Do NOT use taped wires, stranded conductor wires,extension cords, or connections from a star system.They can cause overheating, electrical shock or fire.▪ Do NOT install a phase advancing capacitor, becausethis unit is equipped with an inverter. A phaseadvancing capacitor will reduce performance and maycause accidents.WARNING▪ All wiring MUST be performed by an authorisedelectrician and MUST comply with the applicablelegislation.▪ Make electrical connections to the fixed wiring.▪ All components procured on-site and all electricalconstruction MUST comply with the applicablelegislation.WARNINGALWAYS use multicore cable for power supply cables.CAUTION▪ When connecting the power supply: connect the earthcable first, before making the current-carryingconnections.▪ When disconnecting the power supply: disconnect thecurrent-carrying cables first, before separating the earthconnection.▪ The length of the conductors between the power supplystress relief and the terminal block itself MUST be assuch that the current-carrying wires are tautened beforethe earth wire is in case the power supply is pulledloose from the stress relief.CAUTIONDo NOT perform the test operation while working onthe indoor units.When performing the test operation, NOT ONLY theoutdoor unit, but the connected indoor unit will operate aswell. Working on an indoor unit while performing a testoperation is dangerous.CAUTIONDo NOT insert fingers, rods or other objects into the airinlet or outlet. Do NOT remove the fan guard. When thefan is rotating at high speed, it will cause injury.For the user3 User safety instructionsAlways observe the following safety instructions and regulations.3.1 GeneralWARNINGIf you are NOT sure how to operate theunit, contact your installer.WARNINGThis appliance can be used by childrenaged from 8 years and above andpersons with reduced physical, sensoryor mental capabilities or lack ofexperience and knowledge if they havebeen given supervision or instruction