Daikin RWEYQ8T8Y1B User Manual Download

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INSTALLATION AND

OPERATION MANUAL

RWEYQ8T8Y1B
RWEYQ10T8Y1B

System Air Conditioner

Summary of Contents for RWEYQ8T8Y1B

Page 1: ...INSTALLATION AND OPERATION MANUAL RWEYQ8T8Y1B RWEYQ10T8Y1B System Air Conditioner...

Page 2: ...1 2 3 1 10 19 3 4 15 18 16 9 2 5 21 20 11 13 12 6 7 18 8 14 SV SV INV HPS SV SV SV 1 2 5 6 7 8 9 10 11 12 13 15 16 18 17 21 19 20 18 3 4 18 17 1 2 3...

Page 3: ...sta sida 12 som det fremkommer i A og gjennom positiv bed mmelse av B if lge Sertifikat C som det fremkommer i den Tekniske Konstruksjonsfilen D og gjennom positiv bed mmelse av E Anvendt modul F G Ri...

Page 4: ...PS vastav k llastunud temperatuur M C Jahutusaine N Surve turvaseadme seadistus P bar Tootmisnumber ja tootmisaasta vaadake mudeli andmeplaati 21 PS K bar TS TSmin L C TSmax PS M C N P bar 22 Maksimal...

Page 5: ...tons on the logic board 28 15 2 Operating the push buttons and DIP switches on the logic board 29 16 Charging refrigerant 31 16 1 Precautions 31 16 2 Important information regarding the refrigerant us...

Page 6: ...nger of burning and scalding DANGER ELECTRICAL SHOCK Switch off all power supply before removing the electrical component box service panel or before making any connections or touching electrical part...

Page 7: ...cks or fire A high surge current from lightning or other sources may cause damage to the air conditioner Be sure to install an earth leakage breaker Failure to install an earth leakage breaker may res...

Page 8: ...eating cooling or simultaneous heating cooling is possible 1 Closed cooling tower 2 Boiler 3 VRV IV water cooled unit 4 VRV DX indoor unit 5 User interface Dedicated depending on indoor unit type 6 BS...

Page 9: ...water cooled units This manual has been prepared to ensure adequate maintenance of the unit and it will provide help in case problems occur 4 Accessories Make sure that the following accessories are...

Page 10: ...it Main components see figure 1 figure 2 and figure 3 1 Compressor INV 2 Plate heat exchanger 3 Receiver 4 Oil separator 5 Electronic expansion valve main Y1E 6 Electronic expansion valve sub cool Y3E...

Page 11: ...exceed the allowable piping length See 9 Refrigerant pipe size and allowable pipe length on page 10 Be sure that sufficient precautions are taken in accordance with the applicable legislation in case...

Page 12: ...may exceed the allowable limit depending on room size Due to this it could be necessary to take measures against leakage Refer to 19 Caution for refrigerant leaks on page 42 7 Dimensions and service s...

Page 13: ...sure to use the standard supplied accessories and dedicated parts as installation parts 1 Patch plates or clothes 2 Belt sling 8 3 Unpacking Remove the packaging material from the unit Take care not...

Page 14: ...revented from getting mixed into the system Tight R410A does not contain any chlorine does not destroy the ozone layer and does not reduce earth s protection against harmful ultraviolet radiation R410...

Page 15: ...joints at the first branch counted from the outdoor unit side choose from the following table in accordance with the capacity of the outdoor unit e g Refnet joint a For Refnet joints other than the f...

Page 16: ...units Equivalent piping length 2 pipe length between outdoor 1 and indoor units Total piping length total piping length from the outdoor 1 to all indoor units Difference in height between outdoor and...

Page 17: ...1 B6 Indoor units 1 8 Heat recovery system 1 6 Cooling only 7 8 H1 H2 Unit 1 REFNET joint A G BS units B1 B4 Indoor units 1 8 Heat recovery system 1 6 Cooling only 7 8 a b c d e 1 2 3 4 5 6 7 8 First...

Page 18: ...c d e f g p a h 40 m 9 7 Multi outdoor unit system piping installation 9 7 1 Precautions when connecting piping between outdoor units To connect the piping between outdoor units an optional multi outd...

Page 19: ...n Do not use anti oxidants when brazing the pipe joints Residue can clog pipes and break equipment Do not use flux when brazing copper to copper refrigerant piping Use phosphor copper brazing filler a...

Page 20: ...refer to the installation manual delivered with the kit 1 Horizontal surface 1 Mount the Refnet joint so that it branches either horizontally or vertically 2 Mount the Refnet header so that it branche...

Page 21: ...lly open the 19 1 or 25 4 gas line stop valve turn the hexagonal wrench until a torque between 27 and 33 N m is achieved Inadequate torque may cause leakage of refrigerant and breakage of the stop val...

Page 22: ...eck for any leakages in the refrigerant piping Perform vacuum drying to remove all moisture air or nitrogen in the refrigerant piping If there is a possibility of moisture being present in the refrige...

Page 23: ...ion of the pipe Take preventive measures as necessary for example by insulating the connection on the water pipe The connection port for water piping is located in the front The connection ports for d...

Page 24: ...iping between this gate valve and the outdoor unit for cleaning by chemicals For the purpose of cleaning and water draining from the outdoor unit water draining during a long period of non use in wint...

Page 25: ...freezing protection device was activated When the freezing protection device was activated during operation eliminate the cause before restarting operation If the freezing protection device was activ...

Page 26: ...ch agent has no corrosive features against stainless steel and copper For details of the cleaning method ask the manufacturer of the related cleaning agent After cleaning has been completed check that...

Page 27: ...at exc R6T Thermistor receiver liquid pipe S1NPH Pressure sensor high S1NPL Pressure sensor low S1PH Pressure switch high S1S Selector switch S2S Selector switch T1A Current sensor A4P T1R Transformer...

Page 28: ...1 2 3 3 4 4 5 6 9 7 A B 3 4 6 7 5 8 1 2 3 4 9 CAUTION Do not apply excessive force when opening the electrical component box cover Excessive force can deform the cover Minimum circuit ampere Recommend...

Page 29: ...Branch line 1 5 Branch line 2 6 Branch line 3 7 No branch is allowed after branch 8 Central user interface etc A Transmission wiring between outdoor unit and indoor unit s B Transmission wiring betwee...

Page 30: ...ndoor units is connected is master unit 14 6 3 Power supply wiring and transmission wiring in the unit Make sure to connect the power wire to the power terminal block and fix it using attached clamp a...

Page 31: ...ly wiring NOTICE When routing earth wires secure clearance of 50 mm or more away from compressor lead wires Failure to observe this instruction properly may adversely affect correct operation of other...

Page 32: ...master unit only 1 Outdoor unit A 2 Outdoor unit B 3 Outdoor unit C 4 Adapter for external control 5 Interlock circuit of water pump 6 Outdoor outdoor transmission wiring 7 Use the conductor of sheat...

Page 33: ...nged or when an additional indoor unit is installed When above situation cannot be confirmed after 12 minutes the malfunction code can be checked on the indoor unit user interface and the outdoor unit...

Page 34: ...5 seconds you can select the desired setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 one time Now BS2 is used to select the required value of the select...

Page 35: ...T selector refer to the manual of the cool heat selector switch OFF not installed factory setting 2 4 NOT USED DO NOT CHANGE THE FACTORY SETTING What to do with DIP switch DS2 DS3 1 4 NOT USED DO NOT...

Page 36: ...ition Charge the liquid refrigerant with the cylinder in upside down position NOTICE Charging with an unsuitable substance may cause explosions and accidents so always make sure that the appropriate r...

Page 37: ...LP gas Leave the suction gas valve closed in case of heat pump system 10 Damaged equipment Check the inside of the unit for damaged components or squeezed pipes 11 Refrigerant leak Check the inside o...

Page 38: ...n wiring path between outdoor and outdoor units Q1 Q2 communication line M 14 shows the latest malfunction code M 15 shows the 2nd last malfunction code M 16 shows the 3rd last malfunction code When t...

Page 39: ...ant recovery vacuuming mode Value 2 9 Tc target C 1 41 3 43 6 46 H1P H2P H3P H4P H5P H6P H7P ON w x x x x c x OFF w x x x x x c H1P H2P H3P H4P H5P H6P H7P ON w x x x x c x OFF w x x x x x c H1P H2P H...

Page 40: ...saving and optimum operation on page 37 Value 2 32 Restriction reference 1 Function not active default 2 Follows 2 30 setting 4 Follows 2 31 setting Value 2 49 Te target C 2 6 3 7 4 8 5 9 default 6 10...

Page 41: ...city is not the same as under basic operation For details concerning Hi sensible applications please contact your dealer To activate this setting under cooling operation change field setting 2 8 to th...

Page 42: ...becomes more moderate the system will eventually go to the steady state condition which is defined by the operation method above The start up condition is different from the powerful and quick comfor...

Page 43: ...on A Set room temperature B Operation start C Operation time D Mild E Quick F Powerful Example Automatic mode during heating A Default automatic mode peak capacity B Load curve C Initial Tc value in a...

Page 44: ...y be necessary to provide a logbook with the equipment containing at least info on maintenance repair work results of tests stand by periods CAUTION Do not perform the test operation while working on...

Page 45: ...nd confirm that the abnormality is properly corrected 18 2 Malfunction code list In case of a displayed malfunction code perform correcting actions as explained in the malfunction code table After cor...

Page 46: ...a humanly space is limited to 0 35 kg m3 for R407C and 0 44 kg m3 for R410A 1 Direction of the refrigerant flow 2 Room where refrigerant leak has occurred outflow of all the refrigerant from the syste...

Page 47: ...sure the voltage between terminals on the terminal block for power supply with a tester and confirm that the power supply is shut off In addition measure points as shown in the figure below with a tes...

Page 48: ...relative value depending on the distance and acoustic environment For more details refer to sound level drawings in the technical data book RWEYQ8 RWEYQ10 Power supply name Y1 phase 3N frequency Hz 5...

Page 49: ...optionally be combined to the products as per the subject of this manual Field supply Equipment which needs to be installed according to instructions in this manual but which are not supplied by Daik...

Page 50: ...a water leakage electric shock and fire Do not place a flammable spray bottle near the air conditioner and do not use sprays Doing so may result in a fire Before cleaning be sure to stop the operatio...

Page 51: ...object The user interface may be damaged Never pull or twist the electric wire of the user interface It may cause the unit to malfunction Never inspect or service the unit by yourself Ask a qualified...

Page 52: ...angeover remote control switch Operating the changeover remote control switch 1 Select operation mode with the cool heat changeover switch as follows Cooling operation Heating operation Fan only opera...

Page 53: ...ro computer controls the air flow direction which may be different from the display The air flow direction can be adjusted in one of the following ways The air flow flap itself adjusts its position Th...

Page 54: ...or cooling Prevent direct sunlight from entering a room during cooling operation by using curtains or blinds Ventilate often Extended use requires special attention to ventilation Keep doors and windo...

Page 55: ...t half a day in order to dry the interior of the units Refer to 6 1 Cooling heating fan only and automatic operation on page 48 for details on fan only operation Turn off the power The user interface...

Page 56: ...w change Symptom 8 3 Outdoor unit When the tone of operating noise changes This noise is caused by the change of frequency Symptom 9 Dust comes out of the unit When the unit is used for the first time...

Page 57: ...me of the air conditioner The manufacturing number stated on the nameplate of the unit The installation date The symptoms or malfunction and details of the defect 11 2 2 Recommended inspection and mai...

Page 58: ...AJ Capacity setting malfunction indoor C1 Transmission malfunction between main PCB and sub PCB indoor C4 Heat exchanger thermistor malfunction indoor liquid C5 Heat exchanger thermistor malfunction i...

Page 59: ...he refrigerant used This product contains fluorinated greenhouse gases Do not vent gases into the atmosphere Refrigerant type R410A GWP 1 value 2087 5 1 GWP global warming potential Periodical inspect...

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