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Installation and operation manual

46

10T8Y1B

VRV-W IV System Air Conditioner

4P399208-1 – 2015.01

WARNING

If you detect any abnormality such as smell of fire, 
turn off the power supply and call your dealer for 
instructions.

Do not place objects in direct proximity of the outdoor 
unit and do not let leaves and other debris accumulate 
around the unit. Leaves are a hotbed for small 
animals which can enter the unit. Once in the unit, 
such animals can cause malfunctions, smoke or fire 
when making contact with electrical parts.

Ask your dealer for improvement, repair, and 
maintenance. Incomplete improvement, repair, and 
maintenance may result in a water leakage, electric 
shock and fire.

Do not insert fingers, rods or other objects into the air 
inlet or outlet. When the fan is rotating at high speed, 
it will cause injury.

Never let the indoor unit or the user interface get wet. 
It may cause an electric shock or a fire.

Never use a flammable spray such as hair spray, 
lacquer or paint near the unit. It may cause a fire.

Never touch the air outlet or the horizontal blades 
while the swing flap is in operation. Fingers may 
become caught or the unit may break down.

Never replace a fuse with a fuse of a wrong ampere 
ratings or other wires when a fuse blows out. Use of 
wire or copper wire may cause the unit to break down 
or cause a fire.

To prevent refrigerant leak, contact your dealer. When 
the system is installed and runs in a small room, it is 
required to keep the concentration of the refrigerant, if 
by any chance coming out, below the limit. Otherwise, 
oxygen in the room may be affected, resulting in a 
serious accident.

The refrigerant in the air conditioner is safe and 
normally does not leak. If the refrigerant leaks in the 
room, contact with a fire of a burner, a heater or a 
cooker may result in a harmful gas.
Turn off any combustible heating devices, ventilate 
the room and contact the dealer where you purchased 
the unit.
Do not use the air conditioner until a service person 
confirms that the portion where the refrigerant leaks is 
repaired.

Improper installation or attachment of equipment or 
accessories could result in electric shock, short circuit, 
leaks, fire or other damage to the equipment.

Be sure to use only accessories and spare parts 
made by Daikin which are specifically designed for 
use with the equipment and have them installed by a 
professional.

Ask your dealer to move and reinstall the air 
conditioner. Incomplete installation may result in 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 operation, turn 
the breaker off or pull out the supply cord. Otherwise, 
an electric shock and injury may result.

Do not operate the air conditioner with wet hands. An 
electric shock may result.

Do not place appliances which produce open fire in 
places exposed to the air flow from the unit or under 
the indoor unit. It may cause incomplete combustion 
or deformation of the unit due to the heat.

Do not wash the air conditioner with water. Electric 
shock or fire may result.

WARNING

Do not install the air conditioner at any place where 
flammable gas may leak out. If the gas leaks out and 
stays around the air conditioner, a fire may break out.

In order to avoid electric shock or fire, make sure that 
an earth leak detector is installed.

Be sure the air conditioner is electrically earthed.

In order to avoid electric shock, make sure that the 
unit is grounded and that the earth wire is not 
connected to gas or water pipe, lightning conductor or 
telephone earth wire.

Do not place a flower vase or anything containing 
water on the unit. Water may enter the unit, causing 
an electric shock or fire.

Avoid placing the controller in a spot which can be 
splashed with water. Water entering the machine may 
cause an electric leak or may damage the internal 
electronic parts.

This unit is made for indoor use. The unit should be 
installed in a machine room.

In case of a natural disaster and the unit gets 
submerged, do not operate the unit, or otherwise a 
malfunction, electric shock or fire may occur.

Watch your step at the time of air filter cleaning or 
inspection.

CAUTION

It is not good for your health to expose your body to 
the air flow for a long time. In order to avoid injury, do 
not remove the fan guard of the outdoor unit.

To avoid oxygen deficiency, ventilate the room 
sufficiently if equipment with burner is used together 
with the air conditioner.

Do not allow anyone to climb on the outdoor unit or 
avoid placing any object on it. Falling or tumbling may 
result in injury.

Never expose little children, plants or animals directly 
to the air flow.

Do not let children play on and around the outdoor 
unit. If they touch the unit carelessly, it may result in 
injury.

Never touch the internal parts of the controller.
Do not remove the front panel. Some parts inside are 
dangerous to touch and appliance problems may 
happen. For checking and adjusting the internal parts, 
contact your dealer.

Do not touch the heat exchanger fins. These fins are 
sharp and could result in cutting injuries.

Summary of Contents for RWEYQ10T8Y1B

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...

Page 60: ...4P399208 1 2015 01 Copyright 2015 Daikin 4P399208 1 0000000T...

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