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Troubleshooting

Installer and user reference guide

RYMA5+RXYA8~20A7Y1B

VRV 5 heat pump

4P749918-1 – 2023.12

Main code

Contents

External protection device was activated

The R32 sensor in one of the indoor units has detected a
refrigerant leak

(a)

The R32 sensor in one of the SV unit has detected a refrigerant
leak.

Safety system error (leak detection)

(a)

EEPROM failure (indoor)

Drain system malfunction (indoor/SV unit)

Fan motor malfunction (indoor)

Swing flap motor malfunction (indoor)

Expansion valve malfunction (indoor)

Drain malfunction (indoor unit)

Filter dust chamber malfunction (indoor)

Capacity setting malfunction (indoor)

Transmission malfunction between main PCB and sub PCB
(indoor)

Heat exchanger thermistor malfunction (indoor; liquid)

Heat exchanger thermistor malfunction (indoor; gas)

Suction air thermistor malfunction (indoor)

Discharge air thermistor malfunction (indoor)

Movement detector or floor temperature sensor malfunction
(indoor)

R32 sensor malfunction in one of the indoor units

(a)

R32 sensor end of lifetime in one of the indoor units

(a)

R32 sensor end of lifetime<6 months in one of the indoor units

(a)

Waiting for indoor unit R32 sensor replacement input

(a)

Waiting for SV unit replacement input

SV unit R32 sensor malfunction

Less than 6 months before the SV unit R32 sensor end of lifetime

SV unit R32 sensor end of lifetime

User interface thermistor malfunction (indoor)

PCB malfunction (outdoor)

Current leakage detector was activated (outdoor)

High pressure switch was activated

Low pressure malfunction (outdoor)

Compressor lock detection (outdoor)

Fan motor malfunction (outdoor)

Electronic expansion valve malfunction (outdoor)

Содержание VRV 5 RXYA8A7Y1B

Страница 1: ...Installer and user reference guide VRV 5 heat pump RXYA8A7Y1B RXYA10A7Y1B RXYA12A7Y1B RXYA14A7Y1B RXYA16A7Y1B RXYA18A7Y1B RXYA20A7Y1B RYMA5A7Y1B...

Страница 2: ...ram WITHOUT cool heat changeover remote control switch 34 7 4 3 To use the dry program WITH cool heat changeover remote control switch 34 7 5 Adjusting the air flow direction 35 7 5 1 About the air fl...

Страница 3: ...y only for 5 12 HP 57 15 About the units and options 59 15 1 Identification label Outdoor unit 59 15 2 About the outdoor unit 60 15 3 System layout 60 15 4 Combining units and options 61 15 4 1 About...

Страница 4: ...e additional refrigerant amount 117 19 4 To charge refrigerant Flow chart 120 19 5 To charge refrigerant 120 19 6 Error codes when charging refrigerant 123 19 7 Checks after charging refrigerant 123 1...

Страница 5: ...22 8 Operating the unit 170 23 Hand over to the user 171 24 Maintenance and service 172 24 1 Maintenance safety precautions 172 24 1 1 To prevent electrical hazards 172 24 2 Checklist for yearly main...

Страница 6: ...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 https www da...

Страница 7: ...RMATION Indicates useful tips or additional information Symbols used on the unit Symbol Explanation Before installation read the installation and operation manual and the wiring instruction sheet Befo...

Страница 8: ...are parts made or approved by Daikin unless otherwise specified WARNING Make sure installation testing and applied materials comply with applicable legislation on top of the instructions described in...

Страница 9: ...pheres In places where there is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment In places where there is a risk o...

Страница 10: ...When the refrigerant system is to be opened refrigerant MUST be treated according to the applicable legislation NOTICE Make sure refrigerant piping installation complies with applicable legislation In...

Страница 11: ...cal DANGER RISK OF ELECTROCUTION Turn OFF all power supply before removing the switch box cover connecting electrical wiring or touching electrical parts Disconnect the power supply for more than 10 m...

Страница 12: ...ctor WARNING After finishing the electrical work confirm that each electrical component and terminal inside the switch box is connected securely Make sure all covers are closed before starting up the...

Страница 13: ...radio waves a distance of 1 meter may NOT be sufficient NOTICE ONLY applicable if the power supply is three phase and the compressor has an ON OFF starting method If there exists the possibility of r...

Страница 14: ...guarantee to provide adequate protection to radio reception in such locations CAUTION Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency WARNING If the appliance cont...

Страница 15: ...ons CAUTION Do NOT use mineral oil on flared part Do NOT reuse piping from previous installations NEVER install a drier to this unit to guarantee its lifetime The drying material may dissolve and dama...

Страница 16: ...the formation of 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 unit until a service person confirms that...

Страница 17: ...ay cause accidents WARNING All wiring MUST be performed by an authorised electrician and MUST comply with the national wiring regulation Make electrical connections to the fixed wiring All components...

Страница 18: ...nit ALWAYS make sure that the unit is disconnected from the mains Turn off the respective circuit breaker When a safety device was activated stop the unit and find out why the safety device was activa...

Страница 19: ...tion or pulsation to refrigeration piping Protect the protection devices piping and fittings as much as possible against adverse environmental effects Provide space for expansion and contraction of lo...

Страница 20: ...For the user Installer and user reference guide 20 RYMA5 RXYA8 20A7Y1B VRV 5 heat pump 4P749918 1 2023 12 For the user...

Страница 21: ...s and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a...

Страница 22: ...that the batteries may NOT 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...

Страница 23: ...dy to the air flow for a long time WARNING This unit contains electrical and hot parts WARNING Before operating the unit be sure the installation has been carried out correctly by an installer Mainten...

Страница 24: ...refrigerant see 9 4 About the refrigerant 441 WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable WARNING The refrigerant inside the unit is mildly flammable but no...

Страница 25: ...aked flames The refrigerant itself is entirely safe non toxic and mildly flammable but it will generate toxic gas when it accidentally leaks into a room where combustible air from fan heaters gas cook...

Страница 26: ...ty instructions Installer and user reference guide 26 RYMA5 RXYA8 20A7Y1B VRV 5 heat pump 4P749918 1 2023 12 CAUTION Do NOT touch the heat exchanger fins These fins are sharp and could result in cutti...

Страница 27: ...3 Possible combinations of outdoor units 462 For more specifications see technical engineering data WARNING Do NOT modify disassemble remove reinstall or repair the unit yourself as incorrect dismant...

Страница 28: ...t which is chosen some functionality will or will not exist It will be indicated throughout this operation manual when certain features have exclusive model rights or not INFORMATION The following fig...

Страница 29: ...e are dangerous to touch and appliance problems may happen For checking and adjusting the internal parts contact your dealer This operation manual offers a non exhaustive overview of the main function...

Страница 30: ...6 7 6 2 To designate the master user interface 36 7 7 About control systems 36 7 1 Before operation CAUTION See 4 User safety instructions 421 to acknowledge all related safety instructions NOTICE NEV...

Страница 31: ...supply is turned off during operation operation will restart automatically after the power turns back on again 7 3 2 About cooling heating fan only and automatic operation Changeover cannot be made w...

Страница 32: ...s automatically stopped The display of the user interface shows It may take some time before the fan starts This is not a malfunction INFORMATION The heating capacity drops when the outside temperatur...

Страница 33: ...start 1 Select operation mode with the cool heat changeover switch as follows Cooling operation Heating operation Fan only operation 1 1 1 1 1 1 1 1 2 Press the ON OFF button on the user interface Re...

Страница 34: ...ion 435 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...

Страница 35: ...operation When operating continuously at horizontal air flow direction When continuous operation with downward air flow is performed at the time of cooling with a ceiling suspended or a wall mounted...

Страница 36: ...e current master user interface for 4 seconds In case this procedure was not yet performed the procedure can be executed on the first user interface operated Result The display showing changeover unde...

Страница 37: ...escription Two user interface control system Two user interfaces control one indoor unit in case of group control system one group of indoor units The unit is individually operated NOTICE Contact your...

Страница 38: ...rting the unit turn on the main power supply switch 6 hours before operation to ensure smooth running Refer to Maintenance in the indoor unit manual When the display shows time to clean the air filter...

Страница 39: ...is idea the system automatically starts increasing its refrigerant temperature automatically reducing the delivered capacity and increasing the system s efficiency Hi sensible economic cooling heating...

Страница 40: ...l may get discoloured or the coating peeled off If it is heavily dirty soak a cloth in water diluted neutral detergent squeeze it well and wipe the panel clean Wipe it with another dry cloth 9 2 Maint...

Страница 41: ...installer for more information NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO2 equivalent Formula to...

Страница 42: ...er 5 years Sensor thermistor etc 5 years User interface and switches 25 000 hours Drain pan 8 years Expansion valve 20 000 hours Solenoid valve 20 000 hours The table assumes the following conditions...

Страница 43: ...cycle replacements and or repairs Air filter 1 year 5 years High efficiency filter 1 year Fuse 10 years Crankcase heater 8 years Pressure containing parts In case of corrosion contact your local deal...

Страница 44: ...ction code If the system does NOT operate properly except for the above mentioned cases and none of the above mentioned malfunctions is evident investigate the system in accordance with the following...

Страница 45: ...possible but cooling and heating do not work 48 10 2 4 Symptom The fan speed does not correspond to the setting 48 10 2 5 Symptom The fan direction does not correspond to the setting 49 10 2 6 Sympto...

Страница 46: ...nction indoor liquid Heat exchanger thermistor malfunction indoor gas Suction air thermistor malfunction indoor Discharge air thermistor malfunction indoor Movement detector or floor temperature senso...

Страница 47: ...outdoor Liquid temperature sensor coil malfunction outdoor Gas temperature sensor after subcool HE malfunction outdoor High pressure sensor malfunction S1NPH Low pressure sensor malfunction S1NPL INV...

Страница 48: ...peration button causes the display to blink for a few seconds The blinking display indicates that the user interface cannot be used The system does not start immediately after the power supply is turn...

Страница 49: ...unit When the system is changed over to heating operation after defrost operation Moisture generated by defrost becomes steam and is exhausted 10 2 8 Symptom The user interface reads U4 or U5 and sto...

Страница 50: ...ive off odours The unit can absorb the smell of rooms furniture cigarettes etc and then emit it again 10 2 14 Symptom The outdoor unit fan does not spin During operation the speed of the fan is contro...

Страница 51: ...on Installer and user reference guide 51 RYMA5 RXYA8 20A7Y1B VRV 5 heat pump 4P749918 1 2023 12 11 Relocation Contact your dealer to remove and reinstall the entire unit Moving units requires technica...

Страница 52: ...required by law to collect transport and discard the refrigerant in accordance with the hydrofluorocarbon collection and destruction regulations NOTICE Do NOT try to dismantle the system yourself dism...

Страница 53: ...ue choose Continue to Europe for the international website Other country for a country related site Result You are directed to the Seasonal efficiency webpage 3 Under Eco Design Ener LOT 21 click Gene...

Страница 54: ...For the installer Installer and user reference guide 54 RYMA5 RXYA8 20A7Y1B VRV 5 heat pump 4P749918 1 2023 12 For the installer...

Страница 55: ...e following Fragile handle the unit with care Keep the unit upright in order to avoid compressor damage Lift the unit preferably with a crane and 2 belts of at least 8 m long as shown in the figure be...

Страница 56: ...ING VALUE REMARK DATE 3P328192 1 3 FOR DETAILS CONCERNING PIPING SELECTION AND CALCULATION OR HOW TO OPERATE THE LEAK DETECTION FUNCTION PLEASE REFER TO THE INSTALLATION MANUAL 2 RECORD OF ADDITIONAL...

Страница 57: ...pipe Front connection ID a ID b Bottom connection ID a OD b 5 19 1 19 1 8 10 12 22 2 14 16 28 6 18 20 Liquid pipe Front connection ID b ID a Bottom connection ID b ID a 5 9 5 9 5 8 10 12 12 7 14 12 7...

Страница 58: ...he box Installer and user reference guide 58 RYMA5 RXYA8 20A7Y1B VRV 5 heat pump 4P749918 1 2023 12 2 Remove the transportation stay b as shown in the figure below 1 2 12 3 N m a b a Bolt b Transporta...

Страница 59: ...Possible combinations of outdoor units 62 15 4 4 Possible options for the outdoor unit 62 15 5 About the piping connections 64 15 1 Identification label Outdoor unit Location 14 20 HP 8 12 HP Model i...

Страница 60: ...outdoor installation and aimed for heat pump applications including air to air applications These units have in single use heating capacities ranging from 25 to 63 kW and cooling capacities rating fro...

Страница 61: ...ur system setup outdoor unit indoor unit s will work you have to consult the latest technical engineering data for the VRV 5 heat pump This heat pump system can be combined with several types of indoo...

Страница 62: ...combine more than two units to create a multi combination The combinations in the table below are standard combinations Other combinations are possible as free combination Maximum capacity for multi o...

Страница 63: ...also 17 1 2 Additional installation site requirements of the outdoor unit in cold climates 485 Demand PCB DTA104A61 62 To enable the power saving consumption control by digital inputs you MUST instal...

Страница 64: ...Equalising piping c Gas piping The VRV heat pump system has three piping connections Depending on the type of application connection of the piping will vary For single use application only gas and liq...

Страница 65: ...f enhanced tightness refrigerating systems of the IEC 60335 2 40 this system is equipped with an alarm in the remote controller and shut off valves in the SV unit Both safety measures are installation...

Страница 66: ...lare connections that are compliant with the latest version of ISO14903 can be used Low temperature solder alloys shall not be used for pipe connections For piping installed in the occupied space make...

Страница 67: ...t serves a different room than where it is installed both supply and return air MUST be directly ducted to that room The room area and remote controller rules MUST be followed for both installed and s...

Страница 68: ...otal amount of refrigerant in the system Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2 eq 1000 GWP kg kg kg GWP xxx R32 Total charge Factory charge a additional charge b a The factory char...

Страница 69: ...0 20 20 47 143 95 95 11 33 22 22 48 146 97 97 12 36 24 24 49 149 99 99 13 39 26 26 50 152 101 101 14 42 28 28 51 154 103 103 15 45 30 30 52 157 105 105 16 48 32 32 53 160 107 107 17 51 34 34 54 163 10...

Страница 70: ...graph All other floors b OTHER FLOORS LOWEST UNDERGROUND FLOOR The graphs and table are based on an installation height of the indoor unit between 1 8 m and 2 2 m bottom of the indoor unit or bottom o...

Страница 71: ...15 35 45 m kg Amin m2 No safety measure c Alarm shut off valve SV unit OR Alarm natural ventilation f m Total refrigerant charge in the system kg Amin Minimum room area m a Lowest underground floor L...

Страница 72: ...nd table Amin m YES NO Indoor unit installed conditioning on lowest underground floor No safety measure No safety measure Alarm Natural ventilation NOT allowed Total charge amount kg Alarm Natural ven...

Страница 73: ...ns are restricted in their movements e g hospitals an uncontrolled number of persons is present or buildings where people are not aware of the safety precautions it is mandatory to install one of the...

Страница 74: ...ilable The remote controller should be placed at a supervised location This remote controller can only be the slave Note In order to add a supervisor remote controller to the system a field setting mu...

Страница 75: ...7 79 8 240 79 8 250 79 8 m Total refrigerant charge in the system kg A1 Area of the room with natural ventilation m Amin Minimum room area of the space in which the indoor unit is installed m Note Rou...

Страница 76: ...r arrangements that provide an airflow path between the connected rooms Example The total amount of refrigerant in the VRV system is 20 kg The VRV system has two indoor units which are installed in a...

Страница 77: ...branch pipe ports are combined in order to form a single branch pipe port e g FXMA200 250 they must be considered as a single branch pipe port To determine the charge limit Step 1 In order to derive...

Страница 78: ...ve 2 2 m and custom indoor units which can lead to lower minimum room area requirements In case the capacity class allowed per branch pipe port is bigger than 140 use SV1A unit or combine two ports wh...

Страница 79: ...smallest room size needs to be considered 20 m Use the table under Step 2 to find the maximum capacity class limit of the indoor unit 140 The selected indoor unit is 32 OK Port B only serves room 2 u...

Страница 80: ...natural ventilation and the space in which the indoor unit is installed The partition between two rooms on the same floor MUST meet one of the two requirements for natural ventilation Derive total re...

Страница 81: ...a i c f b e d f g e h f a Heat pump outdoor unit b Safety valve unit SV c Indoor unit with no safety measure d Indoor unit with alarm safety measure e Remote controller in normal mode R32 safety deac...

Страница 82: ...ient space to transport the unit in and out of the site Do NOT install the unit in places often used as work place In case of construction works e g grinding works where a lot of dust is created the u...

Страница 83: ...er may not operate NOTICE If the equipment is installed closer than 30 m to a residential location the professional installer MUST evaluate the EMC situation before installation NOTICE The installatio...

Страница 84: ...nit will not disturb anyone and the location is selected according the applicable legislation Heat exchanger fins are sharp and injury is possible Choose an installation location where there is no ris...

Страница 85: ...windbreaker 1 5 height of outdoor unit Mind the service space requirements when installing the windbreaker a b c d c d a Sea wind b Building c Outdoor unit d Windbreaker 17 1 2 Additional installatio...

Страница 86: ...ambient temperature with high humidity conditions make sure to take precautions to keep the drain holes of the unit free by using proper equipment In heating T AO C WB a b 20 15 5 15 10 5 0 5 10 15 2...

Страница 87: ...R RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING 14 14 5 12 HP 14 20 HP Once the front plates open the switch box can be accessed See 17 2 3 To open the switch box of the outdoor unit 487 For s...

Страница 88: ...ion structure Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise NOTICE When the installation height of the unit needs to be increased do NOT use stands...

Страница 89: ...nel around the foundation to drain waste water from around the unit During heating operation and when the outdoor temperatures are negative the drained water from the outdoor unit will freeze up If th...

Страница 90: ...2 6 To protect against contamination 106 18 2 7 To remove the pinched pipes 107 18 2 8 To braze the pipe end 108 18 2 9 To connect the refrigerant piping to the outdoor unit 108 18 2 10 To connect the...

Страница 91: ...g pressure of the unit see PS High on the unit name plate larger piping thickness might be required 18 1 3 Refrigerant piping insulation Use polyethylene foam as insulation material with a heat transf...

Страница 92: ...g table in accordance with the indoor unit total capacity type connected downstream Do not let the connection piping exceed the refrigerant piping size chosen by the general system model name Example...

Страница 93: ...owed to use other diameters mm sizes taken the following into account Select the pipe size nearest to the required size Use the suitable adapters for the changeover from inch to mm pipes field supply...

Страница 94: ...KHRQ22M29H inch KHRQM22M29H9 mm 290 x 650 KHRA22M65H inch KHRAM22M65H mm INFORMATION Maximum 8 branches can be connected to a header How to choose an outdoor multi connection piping kit Choose from th...

Страница 95: ...onnection to the outdoor unit For more information see 18 Piping installation 490 g SV unit Description Model SV1 SV4 SV6 SV8 Maximum number of connectable indoor units per SV unit a 5 20 30 40 Maximu...

Страница 96: ...door units Definitions Term Definition Actual piping length Pipe length between outdoor and indoor units Equivalent piping length Pipe length between outdoor and indoor units including the equivalent...

Страница 97: ...units 30 15 c H3 Height difference between outdoor units 5 H4 Height difference between EKEXVA kits and AHU units 5 a The allowable height difference is 50 m in case the outdoor unit is positioned hi...

Страница 98: ...Maximum length actual equivalent Longest pipe from the outdoor unit or the last multi outdoor piping branch A B1 C1 A B2 C2 A B1 C3 A B1 D C4 A F G 165 m 190 m a 135 m 160 m a b Longest pipe after the...

Страница 99: ...e total piping length is within limitations The piping length difference between the nearest indoor unit to the outdoor unit and the farthest indoor unit to the outdoor unit is 40 m Connection with VR...

Страница 100: ...up of the piping double its length in the calculation of the total piping length Make sure the total piping length is within limitations The piping length difference between the nearest indoor unit t...

Страница 101: ...To indoor unit b Oil collects to the outmost outdoor unit when the system stops NOT allowed oil remains in piping Allowed If the piping length between the outdoor units exceeds 2 m create a rise of 20...

Страница 102: ...efrigerant piping Before connecting the refrigerant piping make sure the outdoor and indoor units are mounted Connecting the refrigerant piping involves Routing and connecting the refrigerant piping t...

Страница 103: ...ing the piping Use caution when passing copper tubes through walls Unit Installation period Protection method Outdoor unit 1 month Pinch the pipe 1 month Pinch or tape the pipe Indoor unit Regardless...

Страница 104: ...ort b Dust cap c Hexagon hole d Shaft e Seal Do NOT apply excessive force to the stop valve Doing so may break the valve body To open the stop valve 1 Remove the dust cap 2 Insert a hexagon wrench int...

Страница 105: ...t is a Schrader type valve After handling the service port make sure to tighten the service port cover securely For the tightening torque refer to the table below Check for refrigerant leaks after tig...

Страница 106: ...with protective tape to prevent damage 18 2 6 To protect against contamination Protect the piping as described in the following table to prevent dirt liquid or dust from entering the piping Unit Insta...

Страница 107: ...overy unit through a manifold to the service port of all stop valves a a b b a Service port b Stop valve 3 Recover gas and oil from the pinched piping by using a recovery unit CAUTION Do NOT vent gase...

Страница 108: ...e a b c d e f f a Refrigerant piping b Part to be brazed c Taping d Manual valve e Pressure reducing valve f Nitrogen Do NOT use anti oxidants when brazing pipe joints Residue can clog pipes and break...

Страница 109: ...t the stop valves to the field piping using the accessory pipes supplied with the unit The connections to the branch kits are the responsibility of the installer field piping 18 2 10 To connect the mu...

Страница 110: ...1 About checking the refrigerant piping Refrigerant piping works are finished The indoor units SV units outdoor unit are already powered ON Use procedure Method 2 after power ON Finish piping work Us...

Страница 111: ...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 teste...

Страница 112: ...Close Gas line stop valve Close Equalising line stop valve Close NOTICE The connections to the indoor units and all indoor units should also be leak and vacuum tested Keep any possible field supplied...

Страница 113: ...lves to the indoor units open as well Leak test and vacuum drying should be done before the power supply is set to the unit If not see 18 3 1 About checking the refrigerant piping 4110 for more inform...

Страница 114: ...the insulation on the refrigerant piping according to the installation environment Ambient temperature Humidity Minimum thickness 30 C 75 to 80 RH 15 mm 30 C 80 RH 20 mm Between outdoor and indoor uni...

Страница 115: ...sealing material to prevent condensed water on the stop valves from moving to the indoor unit NOTICE Any exposed piping can cause condensation 7 Reattach the service cover and the piping intake plate...

Страница 116: ...n on the power of all outdoor units NOTICE Turn ON the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor NOTICE If operation is perfor...

Страница 117: ...be leak tested on completion of charging but prior to commissioning A follow up leak test shall be carried out prior to leaving the site 19 2 About charging refrigerant Once vacuum drying and leak tes...

Страница 118: ...actory charge refer to the unit name plate NOTICE The total refrigerant charge amount in the system MUST always be lower than 79 8 kg Formula R X1 19 1 0 23 X2 15 9 0 16 X3 12 7 0 10 X4 9 5 0 053 X5 6...

Страница 119: ...indoor units the connection ratio must comply with the following requirements For more information see the technical engineering data Other combinations than those mentioned in the table are not allow...

Страница 120: ...o test run Q R Q R Q R p p A B R32 d Step 4a Close valve B Step 5 Connect valve A to the refrigerant charge port d Open all outdoor unit stop valves Step 6 Activate field setting 2 20 1 Unit will star...

Страница 121: ...a Weighing scales b Refrigerant R32 tank siphon system c Vacuum pump d Liquid line stop valve B Valve B 4 Do one of the following If Then a The determined additional refrigerant amount is not reached...

Страница 122: ...ngs 4148 Result The unit will start operation 7 Open valve A and charge refrigerant until the remaining determined additional refrigerant amount is added and then close valve A 8 Close valve A and pre...

Страница 123: ...eenhouse gases 2 1 1 1 2 2 kg tCO2 eq GWP kg 1000 kg kg GWP XXX RXXX a f c d e a If a multilingual fluorinated greenhouse gases label is delivered with the unit see accessories peel off the applicable...

Страница 124: ...joints indoors 1 Use a leakage test method with a minimum sensitivity of 5 g of refrigerant year Test leaks using a pressure of at least 0 25 times the maximum working pressure see PS High on the unit...

Страница 125: ...ly 136 20 6 To connect the power supply 137 20 7 To connect the external outputs 138 20 8 To check the insulation resistance of the compressor 139 20 1 About connecting the electrical wiring Typical w...

Страница 126: ...se overheating electrical shocks or fire Do NOT install a phase advancing capacitor because this unit is equipped with an inverter A phase advancing capacitor will reduce performance and may cause acc...

Страница 127: ...nverter PCB cooling pipe in order to avoid wire damage due to high temperature piping Firmly close the lid and arrange the electrical wires so as to prevent the lid or other parts from coming loose Th...

Страница 128: ...ch j Central user interface etc A Outdoor indoor interconnection wiring B Master slave interconnection wiring NOTICE Sheathed and shielded cables are required for interconnection wiring between outdoo...

Страница 129: ...oles with packing materials to be prepared on site 20 1 4 Guidelines when connecting the electrical wiring NOTICE We recommend using solid single core wires If stranded wires are used slightly twist t...

Страница 130: ...re single core or twisted stranded conductor wire b Screw c Flat washer Stranded conductor wire with round crimp style terminal c b b a c a B B a Terminal b Screw c Flat washer Allowed NOT allowed For...

Страница 131: ...equal to Zmax EN IEC 61000 3 12 provided that the short circuit power Ssc is greater than or equal to the minimum Ssc value at the interface point between the user s supply and the public system EN I...

Страница 132: ...mmended field fuse 20 A 25 A 32 A 32 A 40 A 50 A Earth leakage circuit breaker residual current circuit breaker Must comply with national wiring regulation a MCA Minimum circuit ampacity Stated values...

Страница 133: ...RXYA10 units Minimum circuit ampacity of the RXYA10 22 0 A Accordingly the minimum circuit ampacity of the RXYA20 22 0 22 0 44 0 A Multiply the above result by 1 1 44 0 A 1 1 48 4 A so the recommended...

Страница 134: ...een outdoor unit and SV unit Interconnection wiring can be routed through the front side only Fix it to the upper mounting hole b a A b a c c c d c d c 5 12 HP 14 20 HP A A a Interconnection wiring po...

Страница 135: ...NIT SV UNIT F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 TO IN D TO OUT D F1 F2 F1 F2 TO MULTI UNIT Q1 Q2 c d TO IN D TO OUT D F1 F2 F1 F2 Q1 Q2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 TO MULTI UNIT TO IN D TO OUT...

Страница 136: ...tion 20 5 To route and fix the power supply NOTICE When routing earth wires secure clearance of 25 mm or more away from compressor lead wires Failure to observe this instruction properly may adversely...

Страница 137: ...LK to L3 and BLU to N g Earth wire GRN YLW h Tie wrap i Cup washer j When connecting the earth wire it is recommended to perform curling NOTICE Never connect the power supply to transmission wiring te...

Страница 138: ...M The SVS output is a contact on terminal X2M that closes in case a leak is detected failure or disconnection of the R32 sensor located in the SV unit or indoor unit The SVEO output is a contact on te...

Страница 139: ...the technical data sheet of the user interface E g the BRC1H52 controller generates an alarm of 65 dB sound pressure measured at 1 m distance from the alarm 20 8 To check the insulation resistance of...

Страница 140: ...eference guide 140 RYMA5 RXYA8 20A7Y1B VRV 5 heat pump 4P749918 1 2023 12 2 Turn ON the power and leave it on for 6 hours Result The compressor will heat up and evaporate any refrigerant in the compre...

Страница 141: ...Available comfort settings 157 21 2 3 Example Automatic mode during cooling 159 21 2 4 Example Automatic mode during heating 160 21 3 Using the leak detection function 161 21 3 1 About automatic leak...

Страница 142: ...field settings of the system Consulting the current field setting value and changing the current field setting value is possible In general normal operation can be resumed without special intervention...

Страница 143: ...t pen to avoid touching of live parts Make sure to re attach the inspection cover into the switch box cover and to close the front plate s inspection cover after the job is finished During operation o...

Страница 144: ...switch between the default situation mode 1 and mode 2 Access Action Default situation Mode 1 Push BS1 one time 7 segment display indication changes to Push BS1 one more time to return to the default...

Страница 145: ...hich are connected to the system Result Mode 1 setting 10 is addressed and selected return value is monitored information 5 To quit mode 1 push BS1 one time 21 1 6 To use mode 2 The master unit should...

Страница 146: ...tting situation 5 To change the value of the setting push BS2 until the required value appears on the 7 segment display 6 Push BS3 one time to validate the change 7 Push BS3 to start operation accordi...

Страница 147: ...lected power consumption limitation The second method is to enable power consumption limitation based on an external input For this operation an optional accessory is required 1 5 1 6 Code Shows 1 5 T...

Страница 148: ...ws the remaining days until the next automatic leak detection if automatic leak detection function is activated When the automatic leak detection function was activated through mode 2 settings it is p...

Страница 149: ...Te target temperature during cooling operation 2 8 Te target C 0 default Auto 2 6 3 7 4 8 5 9 6 10 7 11 For more information and advice about the impact of these settings see 21 2 Energy saving and op...

Страница 150: ...0 x 65 14 65 x 70 15 70 x 75 16 Setting cannot be used Maximum allowable charge MUST be 79 8 kg For details concerning the charging procedure see 19 2 About charging refrigerant 4117 For details conce...

Страница 151: ...ort 2 21 Refrigerant recovery vacuuming mode In order to achieve a free pathway to reclaim refrigerant out of the system or to remove residual substances or to vacuum the system it is necessary to app...

Страница 152: ...on start time This setting is used in conjunction with setting 2 22 2 26 Start time automatic low noise operation approximately 1 20h00 2 default 22h00 3 24h00 2 27 Low noise operation stop time This...

Страница 153: ...consumption limitation If the system always needs to be running under power consumption limitation conditions this setting activates and defines the level power consumption limitation that will be app...

Страница 154: ...Description 0 default Direct connection to the outdoor unit is not possible 1 Direct connection to the outdoor unit is allowed 2 60 Supervisor remote controller setting A power reset is required to s...

Страница 155: ...the automatic leak detection will be executed depending on the defined value setting The timing for the next automatic refrigerant leak detection is subject to setting 2 65 The automatic leak detecti...

Страница 156: ...Change Cooling operation 2 8 2 Heating operation 2 9 6 Automatic The refrigerant temperature is set depending on the outdoor ambient conditions As such adjusting the refrigerant temperature to match t...

Страница 157: ...rarily changing the refrigerant temperature to different values in order to achieve requested conditions more quickly Powerful Overshoot during heating operation or undershoot during cooling operation...

Страница 158: ...rshoot during heating operation or undershoot during cooling operation is allowed compared to the requested refrigerant temperature in order to achieve the required room temperature very fast The over...

Страница 159: ...setting is used in conjunction with setting 2 9 21 2 3 Example Automatic mode during cooling A B E 100 50 Te C D 3 C 6 C 35 C F A Actual load curve B Virtual load curve initial capacity automatic mod...

Страница 160: ...matic mode during heating A B 100 70 E Tc C D 49 C 46 C F 2 C A Virtual load curve default automatic mode peak capacity B Load curve C Virtual target value initial condensation temperature value autom...

Страница 161: ...ation NOTICE If a wrong value is input for the additional charged refrigerant weight the accuracy of the leak detection function will decrease INFORMATION The weighed and already recorded amount of ad...

Страница 162: ...leak detection operation Restart leak detection operation Indicates an indoor unit which is not compatible with leak detection functionality is installed Result of leak detection operation is informed...

Страница 163: ...ommissioning 164 22 4 Checklist during commissioning 165 22 5 About the SV unit test run 166 22 6 About the system test run 166 22 6 1 To perform a test run 166 22 6 2 Correcting after abnormal comple...

Страница 164: ...the compressor During test operation the outdoor unit and the indoor units will start up Make sure that the preparations of all indoor units are finished field piping electrical wiring air purge See i...

Страница 165: ...our local dealer Do not touch any refrigerant which has leaked out from refrigerant piping connections This may result in frostbite Oil leak Check the compressor for oil leakage If there is an oil lea...

Страница 166: ...off the unit to conduct the SV unit test run 22 6 About the system test run NOTICE Make sure to carry out the test run after the first installation Otherwise the malfunction code will be displayed on...

Страница 167: ...Communication check and stop valve check Pipe length check Refrigerant amount check Pump down operation Unit stop INFORMATION During the test operation it is not possible to stop the unit operation fr...

Страница 168: ...the switch box inspection cover 2 Make sure the test run is fully completed without malfunction code see 22 6 1 To perform a test run 4166 3 To start the SV indoor unit connection check make field se...

Страница 169: ...al completion of the test run 4167 to take actions for correcting the abnormality When the check is fully completed normal operation will be possible after 5 minutes In case group control is implement...

Страница 170: ...interface wiring Note Connection check is not possible in the following cases connection with only air handling units pair or multi application connection of air curtain Biddle connection of air handl...

Страница 171: ...erly make sure the following is clear for the user Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he can find the complete d...

Страница 172: ...maintenance of the outdoor unit 173 24 3 About service mode operation 173 24 3 1 To use vacuum mode 174 24 3 2 To recover refrigerant 174 24 3 3 Before the maintenance and service of a system with SV...

Страница 173: ...se the malfunction code will be displayed on the user interface or on the outdoor unit 7 segment display and normal operation will NOT be performed For details refer to the wiring diagram labelled on...

Страница 174: ...gerant from the system into the outdoor unit Possible consequence Self combustion and explosion of the compressor because of air going into the operating compressor Use a separate recovery system so t...

Страница 175: ...1 4 3P736525 1 3 2 b a d c f e a Caution for maintenance and servicing of SV unit b Consult the installation manual or service manual c Apply the field setting on the outdoor unit d Wait for two minu...

Страница 176: ...CTROCUTION DANGER RISK OF BURNING SCALDING WARNING When carrying out an inspection on the switch box of the unit ALWAYS make sure that the unit is disconnected from the mains Turn off the respective c...

Страница 177: ...function code and a sub code The sub code indicates more detailed information about the malfunction code The malfunction code will be displayed intermittent Example Code Example Main code Sub code Wit...

Страница 178: ...t is directly connected to the outdoor unit the compressor will shut down and the unit will stop operating Also all shut off valves for all ports in all SV units in the system will be closed Refer to...

Страница 179: ...input Refer to the service manual for more information R32 sensor malfunction in one of the SV units Check connection on PCB or actuator The system will continue operation but SV unit in scope will s...

Страница 180: ...wer heat exchanger Y3E main PCB X22A Check connection on PCB or actuator Electronic expansion valve malfunction receiver gas Y4E main PCB X25A Check connection on PCB or actuator Electronic expansion...

Страница 181: ...PCB or actuator Heat exchanger deicer temperature sensor R11T main PCB X35A Check connection on PCB or actuator Upper heat exchanger gas temperature sensor R8T main PCB X29A Check connection on PCB or...

Страница 182: ...ck connection Transmission outdoor unit inverter FAN2 transmission trouble main PCB X20A X28A X40A Check connection Transmission main PCB sub PCB main PCB X20A sub PCB X2A X3A Check connection INV1 un...

Страница 183: ...utdoor unit connected Disconnect the outdoor unit No SV unit connected Connect a SV unit Wrong SV unit connected Disconnect the SV unit SV unit refrigerant type abnormality Check SV unit refrigerant t...

Страница 184: ...an electrical contact that closes in case the indicated error occurs c The error code is only shown on the user interface of the indoor unit where the error occurs 25 4 Refrigerant leak detection syst...

Страница 185: ...the ventilation system if equipped of the SV unit to evacuate the leaking refrigerant After the operation the system will go in locked state and the remote controllers will display an error Service is...

Страница 186: ...case a leak is detected For exact model name see option list of the indoor unit For more information about this option refer to the installation manual of the optional output PCB Note Some centralise...

Страница 187: ...4P749918 1 2023 12 26 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation Uni...

Страница 188: ...iagram Outdoor unit 190 27 3 Wiring diagram Outdoor unit 193 27 1 Service space Outdoor unit Make sure the space around the unit is adequate for servicing and the minimum space for air inlet and air o...

Страница 189: ...s the wall heights of sides A C have no impact on service space dimensions Refer to the figure above for impact of wall heights of sides B D on service space dimensions In case of an installation site...

Страница 190: ...gram Outdoor unit Piping diagram 5 12 HP a b d 3D138283 e c Y2E R16T Y1E R5T Y5S R8T R10T R12T R15T Y10S Y2S R7T Y4E R6T Y3E R11T R4T Y5E M1F R3T S1NPL Y3S R21T Y11S M1 S1NPH S1PH Y4S Y8S PHE R13T R9T...

Страница 191: ...12 Piping diagram 14 20 HP a b d e c Y2E Y1E R5T Y5S R8T R10T R12T R15T Y10S Y2S R7T Y4E R6T Y3E R11T R4T Y5E M1F R3T S1NPL S2PH Y3S R21T Y11S S1NPH S1PH Y4S R13T R9T M2F Y7E R1T DT 3D138283 HPS M sv...

Страница 192: ...Filter Check valve Pressure relief valve Thermistor Solenoid valve Heat sink PCB Capillary tube Expansion valve 4 way valve Propeller fan High pressure switch PL low pressure sensor PH high pressure s...

Страница 193: ...S1 DS2 switches 3 Do NOT operate the unit by short circuiting protection device S1PH 4 Refer to the installation manual for connecting indoor outdoor interconnection F1 F2 and outdoor multi interconne...

Страница 194: ...U A6P 14 20 HP only Fuse T 3 15 A 250 V F1U F2U Fuse T 1 A 250 V F3U Field fuse F101U A4P Fuse HAP A P Pilot lamp service monitor is green K R A P Relay on PCB L1R Reactor M1C Motor compressor M1F Mot...

Страница 195: ...valve heat exchanger upper Y2E Electronic expansion valve subcool heat exchanger Y3E Electronic expansion valve heat exchanger lower Y4E Electronic expansion valve receiver gas Y5E Electronic expansi...

Страница 196: ...application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instruction...

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