Daikin RWEYQ8T9Y1B Installation And Operation Manual

Also see for RWEYQ10T9Y1B: Installer and user guide Installer and user reference guide Installation and operation manual

Contents

4 PreparationInstallation and operation manual7RWEYQ8~14T9V1B+RWEYQ8~14T9Y1BVRV IV water-cooled system air conditioner4P452190-1A – 2017.043.2 System layoutHeat recovery systemkmeck lee ef hbaklc ckkkjceikkcd13254e gca Unitb Refrigerant pipingc BS unitd Multi BS unite VRV DX indoor unitf LT Hydrobox unitg Cooling only VRV indoor unith HT Hydrobox uniti EKEXV kitj AHUk User interfacel Wireless user interfacem Water system connectionHeat pump systemgcg g h g gc c cdfeijbaa Unitb Refrigerant pipingc VRV DX indoor unitd LT Hydrobox unite BP box (required to connect Residential Air (RA) or Sky Air(SA) direct expansion (DX) indoor units)f Residential Air (RA) direct expansion (DX) indoor unitsg User interfaceh Wireless user interfacei Cool/heat changeover remote control switchj Water system connectionWater systemcgd febaa Unitb Connection to refrigerant systemc Water pipingd Dry coolere Brine loopf Closed cooling towerg Boiler4 Preparation4.1 Preparing installation site4.1.1 Installation site requirements of theoutdoor unitMind the spacing guidelines. See the "Technical data" chapter.CAUTIONAppliance not accessible to the general public, install it in asecured area, protected from easy access.This unit, both indoor and outdoor, is suitable forinstallation in a commercial and light industrialenvironment.NOTICEThis equipment is compliant with Class A of EN55032/CISPR 32. In a residential environment this equipmentmay cause radio interference.4.2 Preparing refrigerant piping4.2.1 Refrigerant piping requirementsNOTICERefrigerant R410A requires strict cautions for keeping thesystem clean and dry. Foreign materials (including mineraloils or moisture) should be prevented from getting mixedinto the system.NOTICEThe piping and other pressure-containing parts shall besuitable for refrigerant. Use phosphoric acid deoxidisedseamless copper for refrigerant.▪ Foreign materials inside pipes (including oils for fabrication) mustbe ≤30 mg/10 m.▪ Temper grade: use piping with temper grade in function of thepipe diameter as listed in table below.Pipe Ø Temper grade of piping material≤15.9 mm O (annealed)≥19.1 mm 1/2H (half hard)