Daikin RWEYQ8T9Y1B Installer And User Manual

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18 Maintenance and serviceInstaller and user reference guide51RWEYQ8~14T9V1B + RWEYQ8~14T9Y1BVRV IV water-cooled system air conditioner4P452191-1 – 2017.0417.2 Available comfort settingsFor each of above modes a comfort level can be selected. Thecomfort level is related to the timing and the effort (energyconsumption) which is put in achieving a certain room temperatureby temporarily changing the refrigerant temperature to differentvalues in order to achieve requested conditions more quickly.▪ Powerful▪ Quick▪ Mild▪ EcoINFORMATIONCombinations of Automatic mode together with Hydroboxapplications should be considered. The effect of the energysaving function can be very small when low/high (cooling/heating) leaving water temperatures are requested.18 Maintenance and serviceNOTICENever inspect or service the unit by yourself. Ask aqualified service person to perform this work.WARNINGNever replace a fuse with a fuse of a wrong ampere ratingsor other wires when a fuse blows out. Use of wire orcopper wire may cause the unit to break down or cause afire.CAUTIONDo not insert fingers, rods or other objects into the air inletor outlet. Do not remove the fan guard. When the fan isrotating at high speed, it will cause injury.CAUTIONPay attention to the fan.It is dangerous to inspect the unit while the fan is running.Be sure to turn off the main switch before executing anymaintenance task.CAUTIONAfter a long use, check the unit stand and fitting fordamage. If damaged, the unit may fall and result in injury.NOTICEDo not wipe the controller operation panel with benzine,thinner, chemical dust cloth, etc. The panel may getdiscoloured or the coating peeled off. If it is heavily dirty,soak a cloth in water-diluted neutral detergent, squeeze itwell and wipe the panel clean. Wipe it with another drycloth.18.1 Maintenance after a long stopperiodE.g., at the beginning of the season.▪ Check and remove everything that might be blocking inlet andoutlet vents of indoor units and outdoor units.▪ Clean air filters and casings of indoor units. Contact your installeror maintenance person to clean air filters and casings of theindoor unit. Maintenance tips and procedures for cleaning areprovided in the installation/operation manuals of dedicated indoorunits. Make sure to install cleaned air filters back in the sameposition.▪ Turn on the power at least 6 hours before operating the unit inorder to ensure smoother operation. As soon as the power isturned on, the user interface display appears.18.2 Maintenance before a long stopperiodE.g., at the end of the season.▪ Let the indoor units run in fan only operation for about half a day inorder to dry the interior of the units. Refer to "16.2.2 Aboutcooling, heating, fan only, and automatic operation" on page 48for details on fan only operation.▪ Turn off the power. The user interface display disappears.▪ Clean air filters and casings of indoor units. Contact your installeror maintenance person to clean air filters and casings of theindoor unit. Maintenance tips and procedures for cleaning areprovided in the installation/operation manuals of dedicated indoorunits. Make sure to install cleaned air filters back in the sameposition.18.3 About the refrigerantThis product contains fluorinated greenhouse gases. Do NOT ventgases into the atmosphere.Refrigerant type: R410AGlobal warming potential (GWP) value: 2087.5NOTICEIn Europe, the greenhouse gas emissions of the totalrefrigerant charge in the system (expressed as tonnesCO2-equivalent) is used to determine the maintenanceintervals. Follow the applicable legislation.Formula to calculate the greenhouse gas emissions:GWP value of the refrigerant × Total refrigerant charge [inkg] / 1000Please contact your installer for more information.WARNINGThe refrigerant in the system is safe and normally does notleak. If the refrigerant leaks in the room, contact with a fireof a burner, a heater or a cooker may result in a harmfulgas.Turn off any combustible heating devices, ventilate theroom and contact the dealer where you purchased the unit.Do not use the system until a service person confirms thatthe portion where the refrigerant leaks is repaired.18.4 After-sales service and warranty18.4.1 Warranty period▪ This product includes a warranty card that was filled in by thedealer at the time of installation. The completed card has to bechecked by the customer and stored carefully.▪ If repairs to the product are necessary within the warranty period,contact your dealer and keep the warranty card at hand.