Daikin VRV IV RKXYQ5T8Y1B Series Installation And Operation Manual Download Page 42

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20 Technical data

Installation and operation manual

RK RKXYQ8T7Y1B

VRV IV compressor unit for indoor installation

4P499900-1A – 2020.10

Main code

Sub code

Cause

Solution

More than 1 heat exchanger unit connected.

Check installation. Only 1 heat exchanger unit can
be installed.

▪ Improper type of indoor units are connected.

▪ Mismatch of compressor unit and heat

exchanger unit.

▪ Check the type of indoor units that are currently

connected. If they are not proper, replace them
with proper ones.

▪ Check if the compressor unit and heat

exchanger unit are compatible.

5 HP heat exchanger unit connected.

Check installation. Connect 8 HP heat exchanger
unit.

▪ Auto address malfunction (inconsistency)

▪ Mismatch of compressor unit and heat

exchanger unit.

▪ Check if transmission wired unit amount

matches with powered unit amount (by monitor
mode) or wait till initialisation is finished.

▪ Check if the compressor unit and heat

exchanger unit are compatible.

▪ Auto address malfunction (inconsistency)

▪ Mismatch of compressor unit and heat

exchanger unit.

▪ Check if transmission wired unit amount

matches with powered unit amount (by monitor
mode) or wait till initialisation is finished.

▪ Check if the compressor unit and heat

exchanger unit are compatible.

▪ The stop valves of the compressor unit are left

closed.

▪ The piping and wiring of the specified indoor unit

or heat exchanger unit are not connected
correctly to the compressor unit.

▪ Open the stop valves on both the gas and liquid

side.

▪ Confirm that the piping and wiring of the

specified indoor unit or heat exchanger unit are
connected correctly to the compressor unit.

Technical data

▪ A

subset

of the latest technical data is available on the regional

Daikin website (publicly accessible).

▪ The

full set

of latest technical data is available on the Daikin

Business Portal (authentication required).

20.1

Piping diagram: Compressor unit
and heat exchanger unit

5 HP

R2T

R3T

R1T

M1F

M2F

Y1E

Y3E

R2T

M1C

R3T

R7T

R4T

Y1S

S1NPL

S1PH

S1NPH

R5T

3D110524-1

Heat exchanger unit

Compressor unit

Stop valve (gas) (circuit 2: to indoor units)

Summary of Contents for VRV IV RKXYQ5T8Y1B Series

Page 1: ...Installation and operation manual VRV IV compressor unit for indoor installation English Installation and operation manual VRV IV compressor unit for indoor installation RKXYQ5T8Y1B RKXYQ8T7Y1B ...

Page 2: ...rgmis t e standardi te ga või teiste normatiivsete dokumentidega kui neid kasutatakse vastavalt meie juhenditele съответстват на следните стандарти или други нормативни документи при условие че се използват съгласно нашите инструкции atitinka žemiau nurodytus standartus ir arba kitus norminius dokumentus su sąlyga kad yra naudojami pagal mūsų nurodymus tad ja lietoti atbilstoši ražotāja norādījumi...

Page 3: ...16 17 Direktiver med senere ændringer Direktiv med företagna ändringar Direktiver med foretatte endringer Direktiivejä sellaisina kuin ne ovat muutettuina v platném znění Smjernice kako je izmijenjeno irányelv ek és módosításaik rendelkezéseit z późniejszymi poprawkami 18 19 20 21 22 23 24 25 Directivelor cu amendamentele respective Direktive z vsemi spremembami Direktiivid koos muudatustega Дирек...

Page 4: ...suurin sallittu lämpötila TS TSmin Alhaisin matalapainepuolen lämpötila L C TSmax Suurinta sallittua painetta PS vastaava kyllästyslämpötila M C Kylmäaine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi Maximální přípustný tlak PS K bar Minimální maximální přípustná teplota TS TSmin Minimální teplota na nízkotlaké straně L C TSmax Saturovaná teplota odp...

Page 5: ...mptom The outdoor unit fan does not spin 15 8 2 15 Symptom The display shows 88 15 8 2 16 Symptom The compressor in the outdoor unit does not stop after a short heating operation 15 8 2 17 Symptom The inside of an outdoor unit is warm even when the unit has stopped 15 8 2 18 Symptom Hot air can be felt when the indoor unit is stopped 15 9 Relocation 15 10 Disposal 15 For the installer 16 11 About ...

Page 6: ...ry bag of the heat exchanger unit Installer and user reference guide Preparation of the installation reference data Detailed step by step instructions and background information for basic and advanced usage Format Digital files on http www daikineurope com support and manuals product information Latest revisions of the supplied documentation may be available on the regional Daikin website or via y...

Page 7: ...uipped with an inverter A phase advancing capacitor will reduce performance and may cause accidents WARNING All wiring MUST be performed by an authorised electrician and MUST comply with the applicable legislation Make electrical connections to the fixed wiring All components procured on site and all electrical construction MUST comply with the applicable legislation WARNING ALWAYS use multicore c...

Page 8: ...OT be mixed with unsorted household waste If a chemical symbol is printed beneath the symbol this chemical symbol means that the battery contains a heavy metal above a certain concentration Possible chemical symbols are Pb lead 0 004 Waste batteries must be treated at a specialized treatment facility for reuse By ensuring waste batteries are disposed of correctly you will help to prevent potential...

Page 9: ...er such circumstances may cause breakage electric shock or fire Contact your dealer WARNING The refrigerant in the system 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 th...

Page 10: ...er the heating operation stops The air flow rate may adjust itself depending on the room temperature or the fan may stop immediately This is not a malfunction 6 2 3 About the heating operation It may take longer to reach the set temperature for general heating operation than for cooling operation The following operation is performed in order to prevent the heating capacity from dropping or cold ai...

Page 11: ...ly for double flow multi flow corner ceiling suspended and wall mounted Refer to 6 4 Adjusting the air flow direction 411 for details To stop 4 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 6 3 3 To use the dry program WITH cool ...

Page 12: ...insert fingers rods or other objects into the air inlet or outlet Do NOT remove the fan guard When the fan is rotating at high speed it will cause injury CAUTION After a long use check the unit stand and fitting for damage If damaged the unit may fall and result in injury NOTICE Do NOT wipe the controller operation panel with benzine thinner chemical dust cloth etc The panel may get discoloured or...

Page 13: ...r breaker is activated Change the fuse or reset the breaker if necessary Malfunction Measure If the system goes into fan only operation but as soon as it goes into heating or cooling operation the system stops Check if air inlet or outlet of heat exchanger unit or indoor unit is not blocked by obstacles Remove any obstacles and make sure the air can flow freely Check if the user interface display ...

Page 14: ...ion centralised control device indoor unit Auto address malfunction inconsistency Auto address malfunction inconsistency 8 2 Symptoms that are NOT system malfunctions The following symptoms are NOT system malfunctions 8 2 1 Symptom The system does not operate The air conditioner does not start immediately after the ON OFF button on the user interface is pressed If the operation lamp lights the sys...

Page 15: ...gerant gas flowing through both indoor and outdoor units A hissing sound which is heard at the start or immediately after stopping operation or defrost operation This is the noise of refrigerant caused by flow stop or flow change 8 2 11 Symptom Noise of air conditioners Outdoor unit When the tone of operating noise changes This noise is caused by the change of frequency 8 2 12 Symptom Dust comes o...

Page 16: ... open the compressor unit 418 3 Remove the accessories part 2 1 1 1 1 1 8 HP a e b d c 1 1 1 1 d c b a 5 HP a b Piping accessories for circuit 1 to the heat exchanger unit 5 HP 8 HP a Gas Ø19 1 mm Ø22 2 mm b Liquid Ø12 7 mm Ø12 7 mm c d Piping accessories for circuit 2 to the indoor units 5 HP 8 HP c Gas Ø15 9 mm Ø19 1 mm d Liquid Ø9 5 mm Ø9 5 mm e Piping adapter Ø19 1 22 2 mm that you need when c...

Page 17: ...Expansion valve kit AHU Air handling unit 12 3 Combining units and options INFORMATION Certain options might not be available in your country 12 3 1 Possible options for the compressor unit and heat exchanger unit For more possible options see the installer and user reference guide Cool heat selector In order to control the cooling or heating operation from a central location the following option ...

Page 18: ...ISK OF BURNING SCALDING DANGER RISK OF ELECTROCUTION 1 Remove the service cover of the compressor unit 5 5 5 HP 8 HP 2 If you want to make field settings remove the inspection cover 5 HP 8 HP 3 If you want to connect electrical wiring remove the switch box cover 4 SW8 4 SW8 5 HP 8 HP 13 3 Mounting the compressor unit 13 3 1 Guidelines when installing the compressor unit Check the strength and leve...

Page 19: ... diameters mm sizes taken the following into account Select the pipe size nearest to the required size Use the suitable adapters for the change over from inch to mm pipes field supply The additional refrigerant calculation has to be adjusted as mentioned in To determine the additional refrigerant amount A Piping between heat exchanger unit and compressor unit Use the following diameters Compressor...

Page 20: ...requirements H1 H2 H3 H5 L1 a L2 L3 L4 L5 L6 L7 H4 b EKEXV AHU VRV DX VRV DX c c a Heat exchanger unit b Compressor unit c Refrigerant branch kit VRV DX VRV DX indoor unit EKEXV Expansion valve kit AHU Air handling unit H1 H5 Height differences L1 L7 Piping lengths Minimum and maximum piping lengths 1 Heat exchanger unit Compressor unit L1 30 m 2 Actual piping length equivalent piping length a L2 ...

Page 21: ...or the tightening torque refer to the table below Check for refrigerant leaks after tightening the service port cover Tightening torques Stop valve size mm Tightening torque N m turn clockwise to close Shaft Valve body Hexagonal wrench Cap valve lid Service port Ø9 5 5 4 6 6 4 mm 13 5 16 5 11 5 13 9 Ø12 7 8 1 9 9 18 0 22 0 Ø19 1 27 0 33 0 8 mm 22 5 27 5 14 2 2 To remove the pinched pipes WARNING A...

Page 22: ... 1 Remove the service cover See To open the compressor unit 418 2 Choose a piping route a or b b a a a To the back b To the top 3 If you have chosen the piping route to the top a b c d a Cut the insulation under the knockout hole b Hit on the knockout hole and remove it c Remove the burrs d Paint the edges and areas around the edges using repair paint to prevent rusting NOTICE Precautions when mak...

Page 23: ... leakages in the refrigerant piping Performing vacuum drying to remove all moisture air or nitrogen in the refrigerant piping If there is a possibility of moisture being present in the refrigerant piping for example water may have entered the piping first carry out the vacuum drying procedure below until all moisture has been removed All piping inside the unit has been factory tested for leaks Onl...

Page 24: ...e 4 0 MPa 40 bar NOTICE ALWAYS use a recommended bubble test solution from your wholesaler NEVER use soap water Soap water may cause cracking of components such as flare nuts or stop valve caps Soap water may contain salt which absorbs moisture that will freeze when the piping gets cold Soap water contains ammonia which may lead to corrosion of flared joints between the brass flare nut and the cop...

Page 25: ...38 NOTICE Make sure all connected units heat exchanger unit indoor units are recognised setting 1 5 14 4 2 To determine the additional refrigerant amount Formula R X1 Ø12 7 0 12 X2 Ø9 5 0 059 X3 Ø6 4 0 022 A B R Additional refrigerant to be charged in kg and rounded off to 1 decimal place X1 3 Total length m of liquid piping size at Øa A B Parameters A and B Parameters A and B Model A B RKXYQ5 0 8...

Page 26: ...ge hose 6 Open all compressor unit stop valves At this point valve A must remain closed 7 Take all the precautions mentioned in 16 Configuration 429 and 17 Commissioning 436 into account 8 Turn on the power of the indoor units compressor unit and heat exchanger unit 9 Activate setting 2 20 to start the manual additional refrigerant charge mode For details see Mode 2 Field settings 433 Result The u...

Page 27: ...the distribution network operator if necessary that the equipment is connected only to a supply with a short circuit power Ssc greater than or equal to the minimum Ssc value Model Minimum Ssc value RKXYQ8 3329 kVA 15 2 Safety device requirements NOTICE When using residual current operated circuit breakers be sure to use a high speed type 300 mA rated residual operating current Power supply Compres...

Page 28: ... F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 b a RKXYQ8 RDXYQ8 TO OUT D TO IN D F1 F2 F1 F2 8 HP 5 HP a Sheathed shielded cable 2 wires no polarity a1 a2 Connection of shield to earth b Terminal board field supply NOTICE Shielded cable Using shielded cable for the transmission wiring is mandatory for 5 HP and optional for 8 HP X2M F1F2 F1F2 a1 X1M X1M A1P 5 HP 8 HP X2M a2 F1F2 X2M a2 F1F...

Page 29: ...ive input to the PCB A display to read feedback from the PCB DIP switches only change the factory settings if you install a cool heat selector switch Field settings are defined by their mode setting and value Example 2 8 4 PC configurator You can also make field settings through a personal computer interface for this option EKPCCAB is required The installer can prepare the configuration off site o...

Page 30: ...etting BS3 RETURN For field setting 7 LEDs display or 7 segments display The display gives feedback about the field settings which are defined as Mode Setting Value The display differs depending on the model Model Display 5 HP 7 LEDs display H1P Shows the mode H2P H7P Shows the settings and values represented in binary code H8P NOT used for field settings but used during initialisation 8 HP 7 segm...

Page 31: ... Select setting 5 X depends on the setting that you want to select BS2 X binary 5 4 Display the value of setting 5 there are 8 units connected BS3 1 binary 8 Action Button display 5 Quit mode 1 BS1 1 Example 7 segments display Mode 1 in case of 8 HP You can read out setting 1 10 the total number of connected units heat exchanger unit indoor units as follows Action Button display 1 Start from the d...

Page 32: ...der power consumption limitations ON Unit is currently operating under power consumption limitation Power consumption limitation reduces the power consumption of the unit compared to nominal operating conditions Power consumption limitation can be set in mode 2 There are two methods to activate power consumption limitation of the compressor unit The first method is to enable a forced power consump...

Page 33: ...ing Value Description 1 5 Shows the current Te target parameter position For more information see setting 2 8 1 6 Shows the current Tc target parameter position For more information see setting 2 9 1 10 Shows the total number of connected units heat exchanger unit indoor units It can be convenient to check if the total number of units which are installed heat exchanger unit indoor units match the ...

Page 34: ...matic refrigerant charging functionality following setting should be applied 0 default binary 1 default Deactivated 1 binary 2 Activated To stop the manual additional refrigerant charge operation when the required additional refrigerant amount is charged push BS3 If this function was not aborted by pushing BS3 the unit will stop its operation after 30 minutes If 30 minutes was not sufficient to ad...

Page 35: ...xternal signal is sent to the unit this setting defines the level power consumption limitation that will be applied for step 1 The level is according to the table 1 60 2 65 3 default binary 2 default 70 4 75 5 binary 4 80 6 85 7 90 8 95 2 31 Power consumption limitation level step 2 via the external control adaptor DTA104A61 62 If the system needs to be running under power consumption limitation c...

Page 36: ...f the unit first check the items listed below Once all checks are fulfilled the unit must be closed Power up the unit after it is closed You read the complete installation and operation instructions as described in the installer and user reference guide Installation Check that the unit is properly installed to avoid abnormal noises and vibrations when starting up the unit Field wiring Be sure that...

Page 37: ... indoor units cannot be checked for each unit separately After the test operation is finished check the indoor units one by one by performing a normal operation using the user interface Refer to the indoor unit installation manual for more details concerning the individual test run INFORMATION It may take 10 minutes to achieve a uniform refrigerant state before the compressor starts During the tes...

Page 38: ... 5 HP The error code is displayed on the user interface of the indoor unit In case of 8 HP The error code is displayed on the compressor unit s 7 segments display and on the user interface of the indoor unit INFORMATION Refer to the installation manual of the indoor unit for detailed malfunction codes related to indoor units 17 3 5 Operating the unit Once the units are installed and test operation...

Page 39: ...late the required amount of refrigerant from the piping length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine Ambient temperature sensor malfunction Heat exchanger unit R1T A1P X16A Check connection on PCB or actuator Discharge temperature sensor malfunction open circuit short circuit Compressor unit R2T A1P X12A Check connectio...

Page 40: ...etector activated Compressor unit T1A A1P X101A Restart the unit If the problem reoccurs contact your dealer No earth leakage detector detected Compressor unit T1A A1P X101A Replace the earth leakage detector High pressure switch was activated Compressor unit S1PH A1P X4A Check stop valve situation or abnormalities in field piping or airflow over air cooled coil Refrigerant overcharge Stop valve c...

Page 41: ...nnection on PCB or actuator Transmission outdoor unit inverter INV1 transmission trouble Compressor unit A1P X20A X28A X42A Check connection INV1 unbalanced power supply voltage Check if power supply is within range Heat exchanger unit capacity setting malfunction Check the type of heat exchanger unit If necessary replace the heat exchanger unit Reversed power supply phase malfunction Correct phas...

Page 42: ...dress malfunction inconsistency Mismatch of compressor unit and heat exchanger unit Check if transmission wired unit amount matches with powered unit amount by monitor mode or wait till initialisation is finished Check if the compressor unit and heat exchanger unit are compatible The stop valves of the compressor unit are left closed The piping and wiring of the specified indoor unit or heat excha...

Page 43: ... i Capillary tube j Accumulator k Oil separator l Heat exchanger M1C Compressor M1F M3F Fan motor R1T A Thermistor air R2T A Thermistor gas R3T A Thermistor coil R21T B Thermistor discharge R3T B Thermistor suction accumulator R5T B Thermistor liquid R6T B Thermistor subcool heat exchanger gas R7T B Thermistor suction compressor S1NPH High pressure sensor S1NPL Low pressure sensor S1PH High pressu...

Page 44: ...use T 6 3 A 250 V A2P F410U Fuse T 40 A 500 V A2P F411U Fuse T 40 A 500 V A2P F412U Fuse T 40 A 500 V A2P HAP Running LED service monitor green A1P K1M Magnetic contactor A3P K R Magnetic relay A P L1R Reactor M1C Motor compressor M1F Motor fan PS Power supply A1P A3P Q1DI Earth leakage circuit breaker field supply Q1RP Phase reversal detect circuit A1P R21T Thermistor M1C discharge R3T Thermistor...

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