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Daikin ERSQ 011AAV1, Service Manual

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ESIE09-08

iv

Drawings & Flow Charts

113

setting of refrigerant recovery mode ....................113
special ....................................................................52
switch box layout ....................................................28
system is not set yet .............................................204

T

torque wrench ......................................................243
troubleshooting by remote control ........................119
turn power on .........................................................73

W

weigher for refrigerant charge ..............................246
wired remote control ...............................................81
wiring diagrams ....................................................216

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Summary of Contents for ERSQ 011AAV1

Page 1: ...ESIE09 08 Service Manual Daikin ALTHERMA HT ERSQ 011 014 016 AAV1 AAY1 ERRQ 011 014 016 AAV1 AAY1 EKHBRD 011 014 016 AAV1 AAY1 R 410A R 134a EKHTS 200 260 A EKHTSU 200 260 A...

Page 2: ......

Page 3: ...AAV1 ERSQ 011 014 016 AAV1 16 2 2 ERRQ 011 014 016 AAY1 ERSQ 011 014 016 AAY1 18 2 3 EKHBRD 011 014 016 AAV1 EKHBRD 011 014 016 AAY1 20 2 4 EKHTS 200 260 A 22 2 5 EKHTSU 200 260 A 24 Part 4 Electrica...

Page 4: ...1 3 Additional Refrigerant Charge 75 1 4 Operation when Power is Turned On 79 2 Outdoor Unit PC Board Layout 80 3 Field Setting 81 3 1 Field Setting from remote control 81 3 2 Field Setting from Outd...

Page 5: ...164 3 26 J3 Indoor Unit Malfunction of Discharge Pipe Thermistor R6T 165 3 27 J5 Outdoor Unit Malfunction of Thermistor R3T R5T for Suction Pipe 1 2 166 3 28 J5 Indoor Unit Malfunction of Thermistor R...

Page 6: ...ion of Transmission between Remote Control and Indoor Unit 200 3 58 U7 Indoor Unit Malfunction of Transmission Outdoor Unit 201 3 59 U8 Malfunction of Transmission between Main and Sub Remote Controls...

Page 7: ...king on the equipment that is connected to a power supply can cause an electrical shock If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touc...

Page 8: ...rning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or...

Page 9: ...as from leaking into the room The refrigerant gas itself is harmless but it can generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges Warning Caution Installatio...

Page 10: ...l shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainag...

Page 11: ...igh temperature air to water heat pump Daikin offers a wide range of models to respond to the residential heating market We are confident that customers will be able to find the models that best suit...

Page 12: ...Introduction ESIE09 08 x...

Page 13: ...ESIE09 08 General Information 1 Part 1 General Information 1 Model Names of Indoor Outdoor Units Tanks 2...

Page 14: ...Indoor Outdoor Units Tanks Indoor Units Outdoor Units Type Model Name Power Supply EKHBRD 011 AA V1 014 AA 016 AA EKHBRD 011 AA Y1 014 AA 016 AA Type Model Name Power Supply ERRQ 011 AA V1 014 AA 016...

Page 15: ...ESIE09 08 Model Names of Indoor Outdoor Units Tanks General Information 3 Tank Model Name EKHTS 200 A EKHTS 260 A EKHTSU 200 AA EKHTSU 260 AA...

Page 16: ...Model Names of Indoor Outdoor Units Tanks ESIE09 08 4 General Information...

Page 17: ...ESIE09 08 Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Outdoor Units 6 1 2 Indoor Unit 8...

Page 18: ...8 Heat Exchanger Specifications Length mm 857 857 857 Nr of Rows 2 2 2 Fin Pitch mm 2 2 2 Nr of Passes 10 10 10 Face Area m 1 131 1 131 1 131 Nr of Stages 60 60 60 Empty Tubeplate Hole 0 0 0 Tube typ...

Page 19: ...fuse PC board fuse PC board fuse Standard Accessories Item Installation manual Installation manual Installation manual Quantity 1 1 1 Design pressure high pressure side bar 40 40 40 Notes 1 for detai...

Page 20: ...Metal EPS Cardboard MDF Wood pallet Metal Weight kg 8 75 8 75 8 75 Main components Refrigerant side heat exchanger Type Plate heat exchanger Plate heat exchanger Plate heat exchanger Quantity 1 60 pla...

Page 21: ...y on all mentioned sides 4 EW entering water temperature LW leaving water temperature 5 for details see operation range TW drawing 6 for DHW operation Power Supply Name EKHBRD 011 014 016 AAV1 EKHBRD...

Page 22: ...Specifications ESIE09 08 10 Specifications...

Page 23: ...ant Circuit 12 1 1 Outdoor Unit 12 1 2 Indoor Unit 14 2 Functional Parts Layout 16 2 1 ERRQ 011 014 016 AAV1 ERSQ 011 014 016 AAV1 16 2 2 ERRQ 011 014 016 AAY1 ERSQ 011 014 016 AAY1 18 2 3 EKHBRD 011...

Page 24: ...HP pressure switch For INV compressor In order to prevent the increase of high pressure when a malfunction occurs this switch is activated at high pressure of 4 0 MPa or more to stop the compressor op...

Page 25: ...T R7T ACCUMULATOR HEATING STOP VALVE WITH SERVICE PORT ON FIELD PIPING SIDE 7 9MM FLARE CONNECTION DEFROST FANS M1F M2F SP p SERVICE PORT 4 WAY VALVE Y1S CAPILLARY TUBE CAPILLARY TUBE HIGH PRESSURE SE...

Page 26: ...ng defrost operation G K1E Electronic expansion valve Used to regulate the refrigerant flow of R 410A H K2E Electronic expansion valve Used to regulate the refrigerant flow of R 134a I E1HC Crankcase...

Page 27: ...E1HC R6T Y1R M K1S R5T Q2L R4T M1P K2S K1E K2E R3T R7T B1PL B1PH S1PH ACCUMULATOR CHECK VALVE KHTS 200 270 G 1 1 4 female WATER OUTLET STANDARD WATER SIDE 3 WAY VALVE REFRIGERANT SIDE OUTDOOR UNIT SER...

Page 28: ...heater Standard for ERRQ Optional for ERSQ Y2S S1NPL Solenoid valve S1NPH High pressure sensor Y1S 4 way valve Service port Accumulator Service port liquid Service port gas Compressor Oil separator Lo...

Page 29: ...Parts Layout Refrigerant Circuit 17 Back view R6T Subcool thermistor R3T Suction 1 thermistor R8T Liquid pipe 2 thermistor R4T Coil thermistor R7T Liquid pipe 1 thermistor R1T Ambient thermistor R5T...

Page 30: ...for ERRQ Optional for ERSQ Y2S S1NPH Solenoid valve Y3S Solenoid valve S1NPL Low pressure sensor Y1S 4 way valve Y1E Electronic expansion valve Y3E Electronic expansion valve Service port Accumulator...

Page 31: ...ESIE09 08 Functional Parts Layout Refrigerant Circuit 19 Back view R3T R6T Suction thermistor R1T Ambient thermistor R8T Liquid pipe thermistor Subcool gas pipe thermistor R7T Liquid pipe thermistor...

Page 32: ...Functional Parts Layout ESIE09 08 20 Refrigerant Circuit 2 3 EKHBRD 011 014 016 AAV1 EKHBRD 011 014 016 AAY1 Front view Top view 1 2 A 3 4 5 6 10 15 14 13 12 11 9 8 7 16 19 20 18 17 E...

Page 33: ...r R 134a 7 Solenoid valve 24 Drain 8 Expansion vessel 12 l 25 Electronic expansion valve R 134a 9 DC inverter pump 26 Electronic expansion valve R 410A 10 Pressure relief valve 27 Refrigerant gas conn...

Page 34: ...Parts Layout ESIE09 08 22 Refrigerant Circuit 2 4 EKHTS 200 260 A Front view Bottom view Tank sensor Tank sensor Hot water out Cold water in Coil in from EKHBRD Coil out towards EKHBRD Recirculation...

Page 35: ...ESIE09 08 Functional Parts Layout Refrigerant Circuit 23 Top view Worm s eye view Recirculation connection Bottom adaptor Tank sensor Cold water in Coil out to EKHBRD Hot water out Coil in from EKHBRD...

Page 36: ...Functional Parts Layout ESIE09 08 24 Refrigerant Circuit 2 5 EKHTSU 200 260 A Front view Tank sensor...

Page 37: ...l in from EKHBRD Recirculation connection Pressure relief connection Coil out towards EKHBRD Recirculation pipe Recirculation connection Hot water out connection Pressure relief connection Anode Heat...

Page 38: ...Functional Parts Layout ESIE09 08 26 Refrigerant Circuit...

Page 39: ...2 PCB Layout for EKHBRD 011 014 016 AAV1 30 2 1 Main PCB A1P 30 2 2 Control PCB A3P 32 2 3 Inverter PCB A4P 34 2 4 Filter PCB A6P 37 2 5 QA PCB A5P 39 2 6 Inverter Control PCB Three Phase A4P 40 2 7 I...

Page 40: ...Name 1 Main PCB A1P 2 Control PCB A3P 3 Inverter PCB A4P 4 QA PCB A5P 5 Filter PCB A6P 6 Terminal block X1M Main power supply 7 Terminal block X2M AC connections 8 Terminal block X3M DC connections 9...

Page 41: ...trol PCB A3P 3 Inverter PCB A5P 4 Inverter control PCB A4P 5 Filter PCB A6P 6 Terminal block X1M Main power supply 7 Terminal block X2M AC connections 8 Terminal block X3M DC connections 9 DC connecto...

Page 42: ...ite X65A X20A X38A SS1 X70A X30A white X23A blue X15A white X24A black X18A red X12A yellow X17A yellow X16A white X36A red white X7A white X50A white X85A yellow X6A white X33A white X35A white X19A...

Page 43: ...returning water thermistor Yellow X15A White X16A White X17A R5T leaving water thermistor Yellow X18A R3T liquid thermistor R 410A Red X19A White X20A M1P DC inverter pump White X23A Blue X24A Black X...

Page 44: ...phase Control PCB A3P X11A yellow X12A blue X25A white X13A white X14A white X15A X1A blue white X23A green X8A pink X7A black X5A yellow X4A orange X3A white X21A black X16A yellow X10A white X9A wh...

Page 45: ...tor Color Connected to X1A Blue X3A Orange X2M 12 13 X4A Yellow X5A Black X2M 3 4 X7A Pink 2 way valve R 410A X8A Green Bridge with filter capacitors X9A White X10A White X35A of PCB A1P 16V power sup...

Page 46: ...A red X17A blue X18A blue X12A white X11A white X13A white X21A white X5A white X9A white X6A X106A red X41A blue X107A white X111A white LE white P orange Fuse 1 5A 250V for 111F 112F X25A blue X27A...

Page 47: ...PCB X11A White X12A Blue R6T by connector X1Y 13 14 R7T by connector X1Y 15 16 Discharge liquid R 134a thermistor X13A White X17A Red B1PH by connector X1Y 17 18 19 High pressure sensor X18A Blue B1P...

Page 48: ...ay of S1PH Q2L X106A Red X107A White X111A White R8T Fin thermistor HAP LED Indication power supply Fuse 1 5A 250V for M1F M2F Fuse 2 6 3A 250V for Y1S ECHC LC Red LB of PCB A6P Filter PCB LD Orange R...

Page 49: ...Layout for EKHBRD 011 014 016 AAV1 Refrigerant Circuit 37 2 4 Filter PCB A6P Filter PCB single phase LB blue LA red earth green cable white connector Connector of LF NF white NB blue LB red LF NF 6 3A...

Page 50: ...ant Circuit Filter PCB A6P Legend NB LB NA LA E LF NF F1U Connector Color Connected to function LA Red X1M L N Power supply 1 230V NA Blue LB Red LC NC Inverter PCB NB Blue LF Red X2M 10 11 via V5C NF...

Page 51: ...PCB single phase QA PCB A5P Legend white X809A X801A white Fuse F3U 6 3A 250V Green black X803A X809A X801A X803A F3U E3 Connector Color Connected to function X801A White X2M 8 9 by V5C X803A Black X...

Page 52: ...SIE09 08 40 Refrigerant Circuit 2 6 Inverter Control PCB Three Phase A4P Inverter control PCB three phase X6A X21A X11A X12A X41A X13A X17A X5A X4A X9A F4U F3U X8A L21A L11A F1U F2U F5U N1A L31A X25A...

Page 53: ...filter PCB N1A N1B filter PCB X4A Ivory Inverter PCB X104A X5A White Inverter PCB X105A X6A White X8A White Inverter PCB X108A X9A Orange Inverter PCB X109A X11A Ivory R1T X12A Blue R2T R3T R4T and R...

Page 54: ...or EKHBRD 011 014 016 AAV1 ESIE09 08 42 Refrigerant Circuit 2 7 Inverter PCB Three Phase A5P Inverter PCB three phase X105A X111A X142A X141A TP1 TP2 X107A X106A X108A X32A X104A L12A L32A L22A X191A...

Page 55: ...A Reactor phase 3 U Compressor phase U V Compressor phase V W Compressor phase W X32A White HPS X104A Ivory Control PCB X4A X105A White Control PCB X5A X106A Red Fan motor M1F X107A Ivory Fan motor M2...

Page 56: ...6 AAV1 ESIE09 08 44 Refrigerant Circuit 2 8 Digital I O PCB Option PCB A7P Digital I O PCB option PCB A7P Digital I O PCB option PCB A7P X1 X2A CN2 X2 X3 X4 YC X1A Y1 X1A X1M X2M F1U ON YC Y1 Y2 Y3 Y4...

Page 57: ...uit 45 Legend Connector Color Connected to function X1A White X2M 6 7 X2A White X33A of main PCB A1P X1 Cooling heating ON OFF output optional power supply X2 X3 Alarm output optional power supply X4...

Page 58: ...1 used in combina tion with 5 mixing station 2 used in combina tion with 5 used together with 1 2 3 and or 4 X80A Connector Color Connected to function X80A White X85A of main PCB A1P 1 5 2 core cable...

Page 59: ...Operation 53 3 3 Pump down Residual Operation 54 3 4 Stopping Operation 55 4 Protection Control 56 4 1 High Pressure Protection Control 56 4 2 Low Pressure Protection Control 58 4 3 Discharge Pipe Pro...

Page 60: ...o startup Restart standby Compressor stop Indoor unit stop or thermostat OFF Pump down residual operation Malfunction Standby Heating startup control Indoor unit stop or thermostat OFF Electronic expa...

Page 61: ...ll steps possible mainly STEP 7 OR 8 Four way valve ON Main electronic expansion valve EV1 PI control Subcooling electronic expansion valve EV3 PI control Hot gas bypass valve SVP OFF This valve turns...

Page 62: ...16 0Hz 27 175 0Hz 8 62 0Hz 71 0Hz 18 122 0Hz 28 180 0Hz 9 68 0Hz 78 0Hz 19 128 0Hz 29 185 0Hz 10 74 0Hz 20 134 0Hz 30 190 0Hz STEP INV STEP INV STEP INV 1 40 0Hz 11 98 0Hz 21 158 0Hz 2 46 0Hz 12 104 0...

Page 63: ...oling heat exchanger Electronic Expansion Valve K1E Control Indoor Unit Carries out the electronic expansion valve K1E PI control to maintain the condensor outlet subcooled degree SC at constant durin...

Page 64: ...A thermostat ON demand will activate the outdoor fan followed by the outdoor compressor and finally indoor compressor Outdoor Thermostat ON Pressure equalization control prior to startup Startup contr...

Page 65: ...defrost operation is started referring following conditions Outdoor heat exchanger heat transfer co efficient Temperature of heat exchange Tb Tdef Timer 25 min the minimum In addition outdoor heat exc...

Page 66: ...ty Therefore the pump down residual operation is performed to collect the refrigerant in the heat exchanger when the compressor is down 3 3 1 Pump down Residual Operation in Heating Operation R 410A A...

Page 67: ...Keep former condition Main electronic expansion valve EV1 0 pls Subcooling electronic expansion valve EV3 0 pls Hot gas bypass valve SVP OFF Ending conditions Request for space heating OR hot water p...

Page 68: ...operation R 410A High pressure drop Pc 3 04MPa After 10 sec Pc 3 04MPa Pc 2 94MPa Pc 3 64MPa Keeping the current step After 60 sec High pressure not limited High pressure limited Pc HP pressure sensor...

Page 69: ...ressure limited INV upper limit frequency 1 step up from current compressor frequency Pc HP pressure sensor detection value INV upper limit frequency 1 step down from current compressor frequency When...

Page 70: ...Pa or After 10 sec Pe 0 17MPa Pe 0 17MPa Pe 0 20MPa Pe 0 07MPa Current step limited After 15 sec Low pressure not limited Low pressure limited Pe 0 12MPa Pe 0 17MPa Hot gas SVP OFF Hot gas SVP ON Pe L...

Page 71: ...re not limited Low pressure limited Pe 0 13MPa INV 20 RPS Pe LP pressure sensor detection value INV upper limit frequency 3 step down from current compressor frequency INV upper limit frequency 1 step...

Page 72: ...per limit frequency 1 step up from current compressor frequency Discharge pipe temperature standby When occurring 3 times within 100 minutes the malfunction code F3 is output Discharge pipe protection...

Page 73: ...requency 1 step down from current compressor frequency Inverter current 12A Inverter current 12A continues for 3 min INV upper limit frequency 1 step up from current compressor frequency When occurrin...

Page 74: ...es for 3 min When occurring 4 times within 60 min the malfunction code L4 is output INV upper limit frequency 1 step up from current compressor frequency Not limited Limited Tfin see value H in table...

Page 75: ...is possible Heating for domestic hot water is possible till 35 C ambient temperature For more details see chapter of settings 5 2 Inverter Fan Control Switch Box Fan 5 3 Crankcase Heater Cooling fan...

Page 76: ...active when the unit is in thermo OFF condition Start condition AND OR Outdoor ambient temperature 4 C Leaving or return water temperature 7 C AND OR depending of setting 8 04 for further details see...

Page 77: ...2 Remark This function can only be set by field settings This function can only be activated by the schedule timer button and this icon should be led Remote controller leaving water temperature contro...

Page 78: ...limit temperature G Domestic hot water upper limit temperature maximum possible storage temperature b 03 H Domestic hot water reheat minimum temperature b 00 J Domestic hot water reheat maximum temper...

Page 79: ...position then space heating will start again During the reheat operation the system does not take care about the room temperature This means that during simultaneous demand the reheat operation has pr...

Page 80: ...ff the room temperature This means that during simultaneous demand the space only will be heated during the intervals of domestic water production A Operation Space heating Domestic water heating B Do...

Page 81: ...valve will switch back to original position then space heating will start again During the reheat operation the system does not take care about the room temperature This means that during simultaneou...

Page 82: ...when room temperature is more than 0 5 C lower as set point and set point J is reached A Operation Space heating Domestic water heating B Domestic hot water storage thermo on request C Domestic hot wa...

Page 83: ...rocedure and Outline 74 1 2 Air Tight Test and Vacuum Drying 76 1 3 Additional Refrigerant Charge 77 1 4 Operation when Power is Turned On 81 2 Outdoor Unit PC Board Layout 82 3 Field Setting 83 3 1 F...

Page 84: ...onduct the initial test operation after installation 1 1 1 Check Work Prior to Turn Power Supply On Check on refrigerant piping V3180 Check on amount of refrigerant charge Check air tight test and vac...

Page 85: ...before starting operation to protect compressors Close outside panels of the outdoor unit Wait until initialization period is over up to 12 min Can be known by checking leds on outdoor PCB see Field S...

Page 86: ...ater may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare 3 Discharge all nitrogen gas Pressurize the liquid and gas pipes to 4 0 MPa 40 bar do not pres...

Page 87: ...use protective gloves and protect your eyes when charging refrigerant When performing service on the unit requiring the refrigerant system to be opened refrigerant must be evacuated according to local...

Page 88: ...charging port e g onto the inside of the service cover 1 3 2 Procedures for adding refrigerant How to connect the tank Caution Automatic refrigerant charging is NOT POSSIBLE Make sure to turn ON the p...

Page 89: ...of the unit Do NOT use the service ports located on the stop valve since vacuum drying can not be performed properly from these ports Outdoor units have 1 port on the piping It is between the heat ex...

Page 90: ...button 4 times so the t icon will be displayed 3 Perform the test as follows when no action is performed the user interface will return to normal mode after 10 seconds or by pressing the z button once...

Page 91: ...In this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc Status Outdoor unit Test lamp H2P H8P Blinks Can also be set during operation desc...

Page 92: ...ON OFF RETURN Test Error Changeover between cooling and heating Individual Batch master Batch slave Demand Low noise DIP switches DS1 1 and DS1 2 Sets the address again when the wiring is changed or a...

Page 93: ...emote control BRC21A51 To change one or more field settings proceed as follows 1 Press the z button for a minimum of 5 seconds to enter FIELD SET MODE The icon c will be displayed The current selected...

Page 94: ...ting 8 00 the other field settings of group 8 8 01 8 02 8 03 8 04 will be saved as well 3 Before shipping the set values have been set as shown in the field settings table 4 When exiting FIELD SET MOD...

Page 95: ...t time 23 00 0 00 23 00 1 00 hour 02 Setback operation stop time 5 00 0 00 23 00 1 00 hour 3 Weather dependent set point 00 Low ambient temperature Lo_A 10 20 5 1 C 01 High ambient temperature Hi_A 15...

Page 96: ...ensation value 0 5 5 0 5 C 02 Thermo ON OFF admission 0 5 5 0 5 C A Option setup 00 Not applicable Do not change the default value 0 0 2 1 01 Not applicable Do not change the default value 0 0 2 1 02...

Page 97: ...t minimum time for domestic water heating 10 5 20 1 01 Set point maximum time for domestic water heating 30 10 60 5 02 Set point interval minimum stop time of domestic water heating 15 5 30 5 E Servic...

Page 98: ...pensation value If needed it is possible to adjust some thermistor value of the unit by a correction value This can be used as countermeasure for thermistor tolerances or capacity shortage The compens...

Page 99: ...ring schedule timer operation the operation LED is lit continuously When pushing the y button The schedule timer for space heating will stop and will not start again The controller will be switched of...

Page 100: ...d the previous programmed command 13 00 and will remain active until the next programmed command 19 00 occurs So in order to know the actual setting one should consult the last programmed command It i...

Page 101: ...only increase if you feel that the domestic hot water supply temperature is not sufficient for your needs this depends on your water using pattern 2 Make sure the domestic hot water is not heated unne...

Page 102: ...setback is started 2 02 Stop time time at which setback is stopped Setback operation for room temperature control Setback operation for leaving water control Notes 1 In setback operation for room tem...

Page 103: ...stead of showing the water temperature set point the controller shows the shift value which can be set by the user 3 00 Low ambient temperature Lo_A low outdoor temperature 3 01 High ambient temperatu...

Page 104: ...de activated and there is no reheat function active the disinfection function will operate if a domestic hot water tank is installed and field setting 4 00 is set to ON The disinfection function field...

Page 105: ...ving water setback temperature 5 03 Room setback temperature Note More details about setback function can be found in setting 2 First code Second code Setting name Default value Range Step Unit 5 Auto...

Page 106: ...ause it does not give continuous feedback information to the heat pump it is supplementary to the remote controller room thermostat function To have a good control of the system and avoiding frequent...

Page 107: ...uest Therefor multiple set point pattern A can be configured to allow simultaneous domestic water and space heating without intermission Multi set point control according pattern B The basic setup of...

Page 108: ...sabled the schedule timer will not be activated when power returns to the unit after a power supply failure Press the pr button to enable the schedule timer again 8 03 Quiet mode The unit has a quiet...

Page 109: ...OFF admission By changing this value the operation range for space heating operation can be modified If the ambient temperature becomes higher than 24 C the value of 9 02 no space heating is possible...

Page 110: ...rature reducing devices are installed the system can be configured to use multi set points also the demand PCB option is needed 2 The selected values for multiple set point should be lower than the va...

Page 111: ...s enabled 2 During operation it is always possible to cancel the operation by pushing the w button once 3 Pushing the y button has no influence on the domestic water heating Domestic hot water heating...

Page 112: ...lower to reach the same water mixing temperature from the shower or bath mixing tap In this way with a lower domestic hot water tank temperature setting the comfort level can be kept the same but wit...

Page 113: ...le to limit the set points C 00 Set point leaving water maximum temperature C 01 Set point leaving water minimum temperature First code Second code Setting name Default value Range Step Unit C Leaving...

Page 114: ...ic water heating Changing the timer values can have an impact on space heating and domestic water heating heat up timers The default values are proposed but can be changed depending on the complete sy...

Page 115: ...t to get all air out of the water circuit Through this field setting the pump can be operated without actual operation of the unit By doing so this will enhance the air removal from the circuit The pu...

Page 116: ...ng setting Please Attach the Capacity Setting Adapter corresponding to Capacity Class ex 112 140 160 in connector X51A See Below Capacity Setting Adapter 1 2 3 Capacity Class 4 112 5 140 6 160 CAPACIT...

Page 117: ...1P to spare parts PC Board please carry out the following setting Please Attach the Capacity Setting Adapter corresponding to Capacity Class ex 112 140 160 in connector X23A See Below Capacity Setting...

Page 118: ...odify the operating status and to set program addresses etc Usually used in servicing the system e Monitor mode H1P blinks Used to check the program made in Setting mode 2 Mode changing procedure Mode...

Page 119: ...step Press BS1 MODE button V2762 Press BS1 MODE button Press 1 time BS3 button to enter setting Press 1 time BS2 button to change setting Press 1 time BS3 button to confirm setting Press 1 time BS3 bu...

Page 120: ...uld the system be set to any mode other than that push the MODE BS1 button to set the system to Setting mode 1 Normally Setting mode 1 is set In case of other status push MODE BS1 button one time and...

Page 121: ...ld piping and indoor unit in the outdoor unit b Setting mode 2 Selection of setting items Selection of setting conditions Push and hold the MODE BS1 button for 5 seconds and set to Setting mode 2 Push...

Page 122: ...ng item display Setting condition display Setting item MODE H1P TEST H2P C H selection Low noise H6P Demand H7P IND H3P Master H4P Slave H5P Factory set 21 Refrigerant recovery vacuuming mode setting...

Page 123: ...nts of retry the latest z z z z 21 Contents of retry 1 cycle before z z z 22 Contents of retry 2 cycle before z z z 25 Normal judgment of outdoor units PC board c z z z Lower 2 digits z Abnormal z Nor...

Page 124: ...a such as addresses and number of units is expressed as binary numbers the two ways of expressing are as follows The No 1 cool heat unified address is expressed as a binary number consisting of the lo...

Page 125: ...ng mode setting 21 to ON The respective expansion valve of indoor and outdoor units are fully opened TEST OPERATION and UNDER CENTRALIZED CONTROL are displayed on the remote control and the indoor out...

Page 126: ...Mode 2 3 2 3 Setting of Automatic Pump Down Operation When carrying out the automatic pump down operation follow below operation procedure Operating procedure c Turn on the main power supply d Make s...

Page 127: ...ontroller 143 3 11 E1 Outdoor Unit PC Board Defect 144 3 12 E1 Indoor Unit PC Board Defect 145 3 13 E3 Outdoor Unit Actuation of High Pressure Switch 146 3 14 E3 Indoor Unit Actuation of High Pressure...

Page 128: ...utdoor Unit Malfunction of Transmission between Inverter and Control PC Board 187 3 47 LC Indoor Unit Malfunction of Transmission between Inverter and Con trol PC Board 188 3 48 LH Indoor Unit Convert...

Page 129: ...he water circuit are completely open Check if the water filter needs cleaning Make sure there is no air in the system purge air Make sure that the expansion vessel is not broken Check the water pressu...

Page 130: ...t be 0 3 bar Check that the manometer is not broken Check that the expansion vessel is not broken Check if the pressure of the expansion vessel is correct 7 Outdoor unit fan does not rotate In operati...

Page 131: ...4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes Service data can be obtained Malfunction code history Service settings can be mad...

Page 132: ...d malfunction contents Note 1 Pressing the INSPECTION TEST button will blink the check indication 2 While in check mode pressing and holding the ON OFF button for a period of five seconds or more will...

Page 133: ...lfunction occurs Alternating malfunction code possible indication for refrigerant type IU OU Unit Malfunction code Inspection Inspection mode Push the button Inspection test operation Push the button...

Page 134: ...Remote Control Service Mode How to Enter the Service Mode Service Mode Operation Method 1 Select the mode No Only Mode 40 can be set Normal operation mode Field set mode Push the button for 4 seconds...

Page 135: ...code we can distinguish if the error is related to the R 410A or R 134a circuit Mode No Function Contents and operation method Remote control display example 40 Malfunction hysteresis display Display...

Page 136: ...eration lamp malfunction code and display of malfunctioning unit No let you know the contents and location of the malfunction When there is a stop due to malfunction the contents of the malfunction gi...

Page 137: ...connection short circuit failure 164 J5 c Malfunction of thermistor R3T R5T R7T for suction pipe loose connection disconnection short circuit failure 166 J6 c Malfunction of thermistor R6T for heat ex...

Page 138: ...ion of DC fan 2 motor lock Malfunction of electronic expansion valve EV1 E9 EV3 Faulty sensor of outdoor air temperature Faulty Ta sensor short H9 Abnormal discharge pipe temperature Abnormal Td F3 Ab...

Page 139: ...c z c z z c c c z z z z c z z 1 J5 c z c z c c z z z z c z z c z z z z c z c J6 c z c c z c z z z z c z z J7 c z c c c c z z z z c z z J9 c c z z c c z z z z c z z JA c c z c z c z z z z c z z JC c c...

Page 140: ...pen phase Power supply imbalance Imbalance of inverter power supply voltage P1 Faulty temperature sensor of inverter radiation fin Faulty thermistor of inverter fin P4 Refrigerant shortage Refrigerant...

Page 141: ...z z c z z 1 c z z z z z c c z z z z c z z c z c z z z z c z z z c U3 c z z c c c z z z z c z z c c c z z z z c z c c c U4 c z c z z c z z z z c z z c c c z z z z c z c c c U7 c z c c c z z z z c z c...

Page 142: ...ditions When data could not be correctly received from the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of indoor...

Page 143: ...roubleshooting Caution Be sure to turn off power switch before connecting or disconnecting connector otherwise parts may be damaged Connect the wiring and turn on again Fix the wiring and turn on agai...

Page 144: ...bad wire Troubleshooting V2781 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred After connecting turn the power supply off and then back...

Page 145: ...ectronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Continuity No continuity Pin No 1 White 2 Yellow 3 Orange...

Page 146: ...alfunction Decision Conditions Operation and 1 When the capacity code is not contained in the PC board s memory and the capacity setting adapter is not connected 2 When a capacity that doesn t exist f...

Page 147: ...ction Detection Check the condition of transmission between indoor PC board A1P and PC board for control A3P using computer Malfunction Decision Conditions When normal transmission is not conducted fo...

Page 148: ...on of transmission on indoor PC board using local installation mode C1 Malfunction breaks out again YES Replace PC board for control A3P Connect it and operate possible cause is instantaneous blackout...

Page 149: ...Supposed Causes Defect of thermistor R3T for liquid pipe Defect of indoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature characteristics table on P229 V2784 Caution Be s...

Page 150: ...r R2T Defect of indoor unit PC board A3P Troubleshooting Refer to thermistor resistance temperature characteristics table on P229 V2785 Caution Be sure to turn off power switch before connecting or di...

Page 151: ...Supposed Causes Defect of indoor unit thermistor R4T for water return Defect of indoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature characteristics table on P229 Cautio...

Page 152: ...running Supposed Causes Defect of indoor unit thermistor for leaving water R5T Defect of indoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature characteristics table on P2...

Page 153: ...thermistor becomes disconnected or shorted while the unit is running Supposed Causes Defect of remote control thermistor Defect of remote control PC board Defect of indoor PC board A1P Troubleshootin...

Page 154: ...When data could not be correctly received from the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of outdoor unit PC...

Page 155: ...a could not be correctly received from the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect compressor main PC board A...

Page 156: ...contact of the high pressure protection switch opens Malfunction Decision Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode Reference Opera...

Page 157: ...sure sensor Is the pressure detected with the PC board normal See 2 Replace the main PC board The high pressure sensor is normal and the pressure detected with the PC board is also normal The high pre...

Page 158: ...n Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode Reference Operating pressure of high pressure switch Operating pressure 3 8MPa Reset pre...

Page 159: ...service port Connect the Service Tool Reset the operation using the remote control put power off for 10 seconds and then restart the operation YES YES Check for the points shown below 1 Are all water...

Page 160: ...ssure sensor make measurement of voltage at the connector and then convert it to pressure 2 3 Make measurement of voltage of the pressure sensor Connector for high pressure sensor Red Make measurement...

Page 161: ...ethod of Malfunction Detection Abnormality is detected by the pressure value with the low pressure sensor Malfunction Decision Conditions Error is generated when the low pressure is dropped under spec...

Page 162: ...also normal The low pressure has really become low Refer to remove the causes by which the low pressu re has become low 1 Make acomparison between thevoltage of the p ressu re sensor 4 and that read...

Page 163: ...y the pressure value with the low pressure sensor Malfunction Decision Conditions Error is generated when the low pressure is dropped under specific pressure Operating pressure 0 07MPa Supposed Causes...

Page 164: ...is also normal The low pressure has really become low Refer to remove the causes by which the low pressure has become low 1 Make a comparison between the voltage of the pressure sensor 4 and that rea...

Page 165: ...uses Compressor lock High differential pressure 0 5MPa or more Incorrect UVW wiring Faulty inverter PC board Stop valve is left in closed Troubleshooting Check the installation conditions Is the stop...

Page 166: ...pressure 0 5MPa or more Incorrect UVW wiring Faulty inverter PC board Stop valve is left in closed Troubleshooting Warning CAPACITOR SHOCK HAZARD The capacitors top surfaces can hold up to 220V Use co...

Page 167: ...IC when the fan motor runs Malfunction Decision Conditions When the fan runs with speed less than a specified one for 6 seconds or more when the fan motor running conditions are met When malfunction...

Page 168: ...occurred Has eitherthefuse F4UonthecontrolPCboard A1P orthefuseF1UontheinverterPC board A2P blownout NO NO Connect the connector Remove the obstacle Correct the power supply voltage If L1 and N phase...

Page 169: ...valve Defect of outdoor unit PC board A1P Defect of connecting cable Troubleshooting V3067 YES Caution Be sure to turn off power switch before connecting or disconnecting connector otherwise parts may...

Page 170: ...Disconnect the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Continuity No continuity V3067 Orange 1 Red 2 Yellow 3 Black 4 Gray 5 White 6 Pin...

Page 171: ...e Defect of indoor unit PC board A4P Defect of connecting cable Troubleshooting Normal when coil check of the moving part of the electronic expansion valve is checked V3067 YES Caution Be sure to turn...

Page 172: ...sconnect the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Continuity No continuity V3067 White 1 Yellow 2 Orange 3 Blue 4 Red 5 Brown 6 Pin N...

Page 173: ...nsor Faulty connection of discharge pipe temperature sensor Faulty outdoor unit PC board Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P229 V3068 Caution Be sure...

Page 174: ...s Faulty discharge pipe temperature sensor R6T Faulty connection of discharge pipe temperature sensor Faulty indoor unit PC board Troubleshooting Refer to Thermistor Resistance Temperature Characteris...

Page 175: ...rcuit or open circuit Supposed Causes Defect of thermistor R1T for outdoor air Defect of outdoor unit PC board A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on p...

Page 176: ...ature thermistor is detected Supposed Causes Defect of thermistor R2T for outdoor unit discharge pipe Defect of outdoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature cha...

Page 177: ...ected Supposed Causes Defect of thermistor R6T for indoor unit discharge pipe Defect of indoor unit PC board A4P Troubleshooting Refer to thermistor resistance temperature characteristics table on P23...

Page 178: ...ted Supposed Causes Defect of thermistor R3T R5T for outdoor unit suction pipe Defect of outdoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature characteristics table on P...

Page 179: ...ses Defect of thermistor R7T for liquid R134a Defect of indoor unit PC board A4P Troubleshooting Refer to thermistor resistance temperature characteristics table on P229 Caution Be sure to turn off po...

Page 180: ...ge thermistor is detected Supposed Causes Defect of thermistor R6T for outdoor unit heat exchanger Defect of outdoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature charac...

Page 181: ...hermistor is detected Supposed Causes Defect of thermistor R7T for outdoor unit liquid pipe Defect of outdoor unit PC board A1P Troubleshooting Refer to thermistor resistance temperature characteristi...

Page 182: ...ort circuited or open Supposed Causes Faulty subcooling heat exchanger gas pipe thermistor R4T Faulty outdoor unit PC board Troubleshooting Refer to Thermistor Resistance Temperature Characteristics t...

Page 183: ...d Troubleshooting 1 Voltage measurement point 2 Refer to Pressure Sensor pressure voltage characteristics table on P232 V2806 Caution Be sure to turn off power switch before connecting or disconnectin...

Page 184: ...tion Defect of indoor unit PC board A4P Troubleshooting 1 Voltage measurement point 2 Refer to Pressure Sensor pressure voltage characteristics table on P232 V2806 Be sure to turn off power switch bef...

Page 185: ...ressure sensor with wrong connection Defect of outdoor unit PC board Troubleshooting 1 Voltage measurement point 2 Refer to Pressure Sensor pressure voltage characteristics table on P232 V2808 Caution...

Page 186: ...point 2 Refer to Pressure Sensor pressure voltage characteristics table on P232 Caution Be sure to turn off power switch before connecting or disconnecting connector otherwise parts may be damaged Th...

Page 187: ...n case of overcurrent OCP during waveform output When the current sensor malfunctions during synchronized operation In case of IGBT malfunction Supposed Causes Faulty outdoor PC board A1P Over current...

Page 188: ...case of overcurrent OCP during waveform output When the current sensor malfunctions during synchronized operation In case of IGBT malfunction Supposed Causes Faulty indoor PC board A4P 1 or A5P 3 Ove...

Page 189: ...board A2P Defect of fin thermistor Troubleshooting Caution Be sure to turn off power switch before connecting or disconnecting connector otherwise parts may be damaged Faulty heat radiation of power...

Page 190: ...Defect of fin thermistor R8T Troubleshooting Caution Be sure to turn off power switch before connecting or disconnecting connector otherwise parts may be damaged Faulty heat radiation of power unit Ai...

Page 191: ...rter PC board A2P Overcurrent Troubleshooting Higher voltage than actual is displayed when the inverter output voltage is checked by tester V2812 Compressor inspection Caution Inverter output voltage...

Page 192: ...leshooting Higher voltage than actual is displayed when the inverter output voltage is checked by tester Caution Be sure to turn off power switch before connect or disconnect connector or parts damage...

Page 193: ...ccurred Output current check Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable Compressor overload Inspection of the c...

Page 194: ...ter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable Compressor overload Inspection of the compressor and refrigerant system i...

Page 195: ...power switch before connect or disconnect connector or parts damage may be occurred Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when freq...

Page 196: ...urn off power switch before connect or disconnect connector or parts damage may be occurred Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured w...

Page 197: ...unction of connection between the inverter microcomputer and outdoor control microcomputer Defect of outdoor unit PC board A1P or inverter PC board A2P External factor Noise etc Troubleshooting Cautio...

Page 198: ...Causes Malfunction of connection between the inverter microcomputer and indoor control microcomputer Defect of indoor unit PC board A4P 1 or A5P 3 External factor Noise etc Troubleshooting Caution Be...

Page 199: ...rol Display LH Subcode 2 Applicable Models All indoor units Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Inverter PC board problem Troubleshooting Caution Be sure to...

Page 200: ...wer supply open phase Supposed Causes Defect of main circuit capacitor Improper main circuit wiring Defect of outdoor unit PC board A2P Imbalance of phase to phase voltages Open phase Troubleshooting...

Page 201: ...ly open phase Supposed Causes Defect of main circuit capacitor Improper main circuit wiring Defect of indoor unit inverter PC board A4P 1 or A5P 3 Imbalance of phase to phase voltages Open phase Troub...

Page 202: ...s malfunction is detected according to communications with the inverter Malfunction Decision Conditions Make judgment according to communication data on whether or not the type of the inverter PCB is...

Page 203: ...Detection Short of gas malfunction is detected by discharge pipe temperature thermistor and low pressure saturation temperature Malfunction Decision Conditions Microcomputer judge and detect if the sy...

Page 204: ...stem Replace the thermistor R3T Replace the outdoor unit PC board A1P YES YES NO NO Out of gas closing of stop valve or refrigerant system is clogged Requires check of refrigerant system Replace main...

Page 205: ...1 016 Method of Malfunction Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage Malfunction Decision Conditions When the abnormal voltage of main ci...

Page 206: ...A2P Check for the PC board conditions In case of significant failure the PC board may have got faulty due to faulty compressor Consequently even if the PC board is replaced it may get faulty again To...

Page 207: ...of voltage of main circuit capacitor built in the inverter and power supply voltage Malfunction Decision Conditions When the abnormal voltage of main circuit capacitor built in the inverter and abnor...

Page 208: ...or the PC board conditions In case of significant failure the PC board may have got faulty due to faulty compressor Consequently even if the PC board is replaced it may get faulty again To avoid that...

Page 209: ...s ER Q 011 016 Method of Malfunction Detection Microcomputer checks if transmission between indoor and outdoor unit is normal Malfunction Decision Conditions When transmission is not carried out norma...

Page 210: ...nsmission wiring been modified Indoor unit remote controller displays U4 NO Outdoor unit PC board microcomputer monitor HAP blinks NO NO NO Operation ready lamp H2P is blinking Lamp does not go off fo...

Page 211: ...QA communication of indoor unit Malfunction Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Wrong wiring between indoor unit PC boards A4...

Page 212: ...1P Defect of remote control PC board Malfunction of transmission caused by noise Troubleshooting Refer to information on P208 Caution Be sure to turn off power switch before connecting or disconnectin...

Page 213: ...nit Improper cool heat selection Improper cool heat unified address outdoor unit external control adaptor for outdoor unit Defect of outdoor unit PC board A1P Defect of external control adaptor for ou...

Page 214: ...ontinue for specified period Supposed Causes Malfunction of transmission between main and sub remote control Connection between sub remote controls Defect of remote control PC board Troubleshooting Ca...

Page 215: ...f the type of indoor and outdoor unit Setting of outdoor PC board was not conducted after replacing to spare parts PC board Troubleshooting Caution Be sure to turn off power switch before connecting o...

Page 216: ...y erroneous connection of unit Supposed Causes Improper connection of transmission wiring between indoor outdoor unit QA wiring problem Defect of indoor unit PC board Troubleshooting Note Wiring check...

Page 217: ...board A1P Troubleshooting Caution Be sure to turn off power switch before connecting or disconnecting connector otherwise parts may be damaged V2831 NO YES Fix incorrect wiring push and hold the RESET...

Page 218: ...perature of indoor unit High ambient temperature Is the suction air temperature not more than 27 C Is the indoor temperature not more than 27 C Faulty suction air thermistor of indoor unit High suctio...

Page 219: ...pipe Cloggingofforeignparticles Stop valve closed Does the piping length fall in the permissible range Conduct visual checks for pipe conditions Is there any temperature difference caused before and a...

Page 220: ...supply off 2 With the fan motor connector on motor side disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table...

Page 221: ...door Unit 212 1 3 Switch Box Layout 214 2 Wiring Diagrams 216 2 1 Outdoor Unit 216 2 2 Field Wiring Connection Diagram 220 2 3 Indoor Unit 221 3 Thermistor Resistance Temperature Characteristics 229 4...

Page 222: ...PA RATOR R8T R1T R4T R2T R5T R3T R6T R7T ACCUMULATOR HEATING STOP VALVE WITH SERVICE PORT ON FIELD PIPING SIDE 7 9MM FLARE CONNECTION DEFROST FANS M1F M2F SP p SERVICE PORT 4 WAY VALVE Y1S CAPILLARY T...

Page 223: ...4T R2T R5T R3T R6T R7T ACCUMULATOR HEATING STOP VALVE WITH SERVICE PORT ON FIELD PIPING SIDE 7 9MM FLARE CONNECTION DEFROST FANS M1F M2F SP p SERVICE PORT 4 WAY VALVE Y1S CAPILLARY TUBE CAPILLARY TUBE...

Page 224: ...410A R 134a CHECK VALVE M1C E1HC R6T Y1R M K1S R5T Q2L R4T M1P K2S K1E K2E R3T R7T B1PL B1PH S1PH ACCUMULATOR CHECK VALVE KHTS 200 260 G 1 1 4 female WATER OUTLET STANDARD WATER SIDE 3 WAY VALVE REFR...

Page 225: ...or R6T Discharge thermistor R7T Liquid thermistor R 134a S1PH High pressure switch B1PL Low pressure sensor B1PH High pressure sensor K1E Electronic expansion valve R 410A K2E Electronic expansion val...

Page 226: ...2M A7P Fieldwiring to X1M X1M X2M C1 X2Y X1Y X3Y A5P A4P A6P A8P A3P A1P K1A Part number Description A1P Main PCB A2P User interface PCB remote controller A3P Control PCB A4P Inverter PCB A5P QA PCB A...

Page 227: ...ldwiring to X1M X1M X2M X2Y X1Y X3Y A8P A3P A1P K1A A6P A4P A5P Part number Description A1P Main PCB A2P User interface PCB remote controller A3P Control PCB A4P Inverter control PCB A5P Inverter PCB...

Page 228: ...A LB LC R1 R2 U V W U U V V W W MS POSITION OF COMPRESSOR TERMINAL WIRE ENTRANCE 3 MS 3 MS 3 LD LE C2 C3 C1 K1M V2R V1T X32A S1PH FINTH X111A X11A 1 1 R1T R2T R3T R4T R5T R6T R7T R8T X12A X13A P C4 t...

Page 229: ...M1C V1T IGBT K1R Magnetic relay Y1S X1M Terminal strip power supply K2R Magnetic relay Y2S X2M Terminal strip control K3R Magnetic relay Y3S X1M Terminal strip C H selector A4P K4R Magnetic relay E1H...

Page 230: ...M X2M F6U U U U V V W W V W C1 C2 C3 X111A X105A X106A X506A Z7C Z5C Z6C N 1 N 5 N 6 X516A M1F M1C COMPRESSOR TERMINAL POSITION MS 3 MS 3 MS 3 M2F X507A X517A X107A X109A X191A X108A X104A R9T t L1A L...

Page 231: ...green V3R Diode module H1P 8P A1P Pilot lamp service monitor orange H2P prepare test flickering malfunction detection light up X1M Terminal strip X2M Terminal strip control K1M K2M Magnetic contactor...

Page 232: ...220V 240V earth Benefit kWh rate power supply contact R2T Thermistor water temperature P1 P2 K1S when EKHTS is installed selection domestic hot water heating Optional parts Standard parts 3 way valve...

Page 233: ...P2 F1 F2 F1 F2 P1 P2 X15A X33A A1P X33A 1 A1P X85A 1 A1P X85A 2 A1P X85A 3 A1P X85A 4 A1P X85A 5 A1P X85A 6 A1P X33A 2 A1P X33A 3 A1P X33A 4 A1P X33A 5 A1P X33A 6 1 2 1 2 3 4 5 6 X85A 1 2 3 4 5 6 X7A...

Page 234: ...1R T3R T2R R6T K2E M R7T X4Y R8T C1 C2 C3 C1 R1L Z4F TC RC PS Z2F N 2 V2C N 2 V1C N 2 V4C A6P A4P HAP K3R K1R K4R K1A X3Y Y1R Q2L E1HC S1PH P A5P N 1 A3P X1A 1 6 6 A1P X27A 1 6 6 A1P X27A 3 6 6 A1P X2...

Page 235: ...valve K2E Electronic expansion valve K R A P PCB relay K1S 3 way valve K2S 2 way valve M1C Compressor M1F M2F Switchbox cooling fan M1P DC inverter pump PC A11P Power circuit PHC1 Optocoupler input c...

Page 236: ...5P QA PCB A6P Filter PCB A7P Digital I O PCB A8P Demand PCB A9P Service PCB A10P Thermostat PCB A11P Receiver PCB R1H EKRTR Humidity sensor R1T EKRTW R Ambient sensor R2T EKHTS Domestic hot water tank...

Page 237: ...F1 F2 F1 F2 P1 P2 X15A X33A A1P X33A 1 A1P X85A 1 A1P X85A 2 A1P X85A 3 A1P X85A 4 A1P X85A 5 A1P X85A 6 A1P X33A 2 A1P X33A 3 A1P X33A 4 A1P X33A 5 A1P X33A 6 1 2 1 2 3 4 5 6 X85A 1 2 3 4 5 6 X7A 1 2...

Page 238: ...1F Z1F Z3F N 5 V6C N 1 V4C N 2 V5C N 2 A5P V7C N 2 V1C N 1 V2C A4P HAP HAP K3R K1R K2R X3Y Y1R E1HC A6P N 1 A3P X1A 1 6 6 A1P X27A 1 6 6 A1P X27A 3 6 6 A1P X27A 5 6 6 NA L3A L2A L1A F1U F2U R1 U V W U...

Page 239: ...ion valve K1M K2M PCB contactor K R A P PCB relay K1S 3 way valve optional K2S 2 way valve M1C Compressor M1F M2F Switchbox cooling fan M1P DC inverter pump PC A11P Power circuit PHC1 Optocoupler inpu...

Page 240: ...tal I O PCB optional A8P Demand PCB optional A10P Thermostat PCB optional A11P Receiver PCB optional R1H EKRTR Humidity sensor optional R1T EKRTW R Ambient sensor optional R2T EKHTS Domestic hot water...

Page 241: ...43 57 94 52 6 65 6 53 3 56 49 55 08 53 6 41 6 53 4 53 71 52 38 54 6 65 6 53 5 51 09 49 83 55 6 41 6 53 6 48 61 47 42 56 6 18 6 06 7 46 26 45 14 57 5 95 5 84 8 44 05 42 98 58 5 74 5 43 9 41 95 40 94 59...

Page 242: ...14 71 33 92 33 35 121 7 26 7 16 22 228 05 223 08 72 32 78 32 23 122 7 06 6 97 23 218 24 213 51 73 31 69 31 15 123 6 87 6 78 24 208 90 204 39 74 30 63 30 12 124 6 69 6 59 25 200 00 195 71 75 29 61 29 1...

Page 243: ...ESIE09 08 Thermistor Resistance Temperature Characteristics Appendix 231 Tank Thermistor R2T NTC curve T C Resistance value 20 197 81 k 0 65 84 k 25 20 k...

Page 244: ...57V 0 28 PH High pressure MPa VL Low pressure MPa V Voltage V PH Detected Pressure High Side MPa PL Detected Pressure Low Side MPa VH Output Voltage High Side VDC VL Output Voltage Low Side VDC High...

Page 245: ...cking failures in power semiconductors mounted on inverter PC board Check the power semiconductors mounted on the inverter PC board by the use of a multiple tester Items to be prepared Multiple tester...

Page 246: ...Method of Replacing the Inverter s Power Transistors Modules ESIE09 08 234 Appendix Inverter PC board C C W U V...

Page 247: ...ach value variation The following abnormalities are also doubted besides the PC board abnormality Faulty compressor ground fault ground leakage Faulty fan motor ground leakage Tester terminal Criterio...

Page 248: ...Method of Replacing the Inverter s Power Transistors Modules ESIE09 08 236 Appendix...

Page 249: ...08 Precautions for New Refrigerant R 410A 237 Part 9 Precautions for New Refrigerant R 410A 1 Precautions for New Refrigerant R 410A 242 1 1 Outline 242 1 2 Refrigerant Cylinders 244 1 3 Service Tool...

Page 250: ...opic mixture refrigerant mixture of two or more refrigerants having similar boiling points 3 The design pressure is different at each product Please refer to the installation manual for each product R...

Page 251: ...ew Refrigerant R 410A 239 Thermodynamic characteristic of R 410A Temperature C Steam pressure kPa Liquid Vapor Density kg m3 Liquid Vapor Specific heat at constant pressure kJ kgK Liquid Vapor Specifi...

Page 252: ...ed in high pressure vessels Although those vessels are durable and strong careless handling can cause damage that can lead to unexpected accidents Do not drop vessels let them fall apply impact or rol...

Page 253: ...specification differs for R 410A and R 407C Charging cylinder Weighting instrument used for HFCs Gas detector The same tool can be used for HFCs Vacuum pump pump with reverse flow preventive function...

Page 254: ...ipe extension margin of 0 to 0 5mm was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 1 0 to 1 5mm For clutch type only Conventional tool with pi...

Page 255: ...z Maximum degree of vacuum 50 l min 50Hz Select a vacuum pump which is able to keep 60 l min 60Hz the vacuum degree of the system in excess of Suction port UNF7 16 20 1 4 Flare 100 7 kPa 5 torr 755 m...

Page 256: ...s hydrogen 5 Refrigerant oil Air compal Specifications Contains synthetic oil therefore it can be used for piping work of every refrigerant cycle Offers high rust resistance and stability over long pe...

Page 257: ...with and without hand operate valve that prevents refrigerant from outflow Differences Pressure proof hose Change in service port diameter Use of nylon coated material for HFC resistance 8 Charging cy...

Page 258: ...heck liquid refrigerant charging A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories Differences Measurement is based on weight to prevent change of m...

Page 259: ...rter Circuit 188 189 I Indoor Unit 8 Inverter Compressor Abnormal 179 180 Inverter Compressor Motor Lock 153 154 Inverter Current Abnormal 181 182 Inverter Protection Control 61 Inverter Start up Erro...

Page 260: ...istors for Discharge Pipe 230 P P1 188 189 PC Board Defect 130 142 143 PCB Layout for EKHBRD 011 014 016 AAV1 30 PJ 190 Power Supply Insufficient or Instantaneous Failure 193 195 Precautions for New R...

Page 261: ...1e 132 malfunction of moving part of electronic expansion valve y1e y3e 157 159 malfunction of outdoor unit fan motor 155 malfunction of system refrigerant system address un defined 205 malfunction of...

Page 262: ...of refrigerant recovery mode 113 special 52 switch box layout 28 system is not set yet 204 T torque wrench 243 troubleshooting by remote control 119 turn power on 73 W weigher for refrigerant charge 2...

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