Daikin RYYQ8T7Y1B Installer And User Reference Manual

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Daikin RYYQ8T7Y1B Installer And User Reference Manual Manual pdf 85 page image

18 Maintenance and serviceInstaller and user reference guide85RYYQ+RYMQ+RXYQ8~20T7Y1BVRV IV system air conditioner4P370475-1C – 2016.11CAUTIONPay 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 81for 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.18.4.2 Recommended maintenance andinspectionSince dust collects when using the unit for several years,performance of the unit will deteriorate to some extent. As takingapart and cleaning interiors of units requires technical expertise andin order to ensure the best possible maintenance of your units, werecommend to enter into a maintenance and inspection contract ontop of normal maintenance activities. Our network of dealers hasaccess to a permanent stock of essential components in order tokeep your unit in operation as long as possible. Contact your dealerfor more information.When asking your dealer for an intervention, always state:▪ The complete model name of the unit.▪ The manufacturing number (stated on the nameplate of the unit).▪ The installation date.▪ The symptoms or malfunction, and details of the defect.WARNING▪ Do not modify, disassemble, remove, reinstall or repairthe unit yourself as incorrect dismantling or installationmay cause an electric shock or fire. Contact yourdealer.▪ In case of accidental refrigerant leaks, make sure thereare no naked flames. The refrigerant itself is entirelysafe, non-toxic and non-combustible, but it willgenerate toxic gas when it accidentally leaks into aroom where combustible air from fan heaters, gascookers, etc. is present. Always have qualified servicepersonnel confirm that the point of leakage has beenrepaired or corrected before resuming operation.