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Service diagnosis

operates

Check the indoor PCB

Check to make sure that the indoor PCB is broken

Operation

sometimes stops.

Check the power supply.

A power failure of 2 to 10 cycles can stop air conditioner

operation.

Equipment

operates but does

not cool, or does

not heat (only for

heat pump)

Check for faulty operation

of the electronic

expansion valve.

Set the units to cooling operation, and compare the

temperatures of the liquid side connection pipes of the

connection section among rooms to check the opening and

closing operation of the electronic expansion valves of the

individual units.

Diagnosis by service port

pressure and operating

current.

Check for insufficient gas.

Large operating

noise and

vibrations

Check the installation

condition.

Check to make sure that the required spaces for

installation (specified in the Technical Guide, etc.) are

provided.

6.2 Problem Symptoms and Measures

Sympt

Check Item

Details of Measure

None of the units

Check the power supply.

Check to make sure that the rated voltage is supplied.

6. Service Diagnosis

6.1 Caution for Diagnosis

The operation lamp flashes when any of the following errors is detected.

1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,

disabling equipment operation.

2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the

diagnostic procedure described in the following pages.

Domestic Air Conditioner

Содержание York FREE MATCH EK-Series

Страница 1: ...iduals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death EK Series YJHMXH007BARR FX YJHMXH009BARR FX YJHMXH012BARR FX YJU2YH014BARRA X ...

Страница 2: ...PROM abnormal 44 6 3 3Indoor AC fan motor malfunction 45 6 3 4 Outdoor DC fan motor fault 46 6 3 5 IPM protection 47 6 3 6 Over current of the compressor 48 6 3 7 The communication fault between IPM and outdoor PCB 49 6 3 8 Power Supply Over or under voltage fault 50 6 3 9 Overheat Protection ForDischarge Temperature 51 6 3 10 The communication fault between indoor and outdoor 52 6 3 11 Loss of sy...

Страница 3: ...sure to discharge the capacitor completely before conducting repair work A charged capacitor can cause an electrical shock Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or fire 1 Introduction 1 1 Safety Cautions Be sure to read the following safety ...

Страница 4: ...ing the welder in an enclosed room can cause oxygen deficiency 1 1 2 Cautions Regarding Products after Repair Warning 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 tools can cause an electrical shock excessive heat generation or fire When relocating t...

Страница 5: ...generation or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results ...

Страница 6: ...ension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If a ...

Страница 7: ... replace it Corroded installation platform or frame can cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 M ohm or higher Faulty insulation can cause an electrical shock Be sure to ...

Страница 8: ...tion conditions after sudden power blackout The panel is easy to wash and the airflow vents can be detached easily With twin blade technology the airflow can be adjusted not to blow directly Catches most small particles and remove unpleasant odors effectively Sleep mode The setting temprature and the indoor noise can be adjusted to a more comfortable level when you set the sleep mode during night ...

Страница 9: ... 7 5 265 7 1 250 20 20 20 M oisture Rem oval Running Current Rated Power Consum ption Rated M in M ax Power Factor M odel Capacity Rated M in M ax Φ16 Φ16 Φ6 35 Φ6 35 Φ9 52 Φ9 52 7 2 254 6 3 222 M ax Interunit Piping Length 30 double 20 single 30 double 20 single M ax Interunit Height Difference 15 15 6 5 229 6 1 215 Type Am ount of Additional Charge of Refrigerant Air Direction Control Indoor Uni...

Страница 10: ...otary Com pressor 0 48 31 2 Air Flow Rate H L cooling heating m 3 m in cfm Refrigerant M odel Refrigerantoil M odel ESTER LIL VG 74 ESTER LIL VG 74 Power Consum ption Rated cooling heating Power Factor cooling heating 40 40 Running Current Rated cooling heating Fan Type 6 7 8 6 1400 Starting Current cooling heating 8 8 Dim ensions W D H Packaged Dim ensions W D H 905x375x612 38 41 O utdoor Unit Ca...

Страница 11: ... 6 CN30ʙCN31 Connector transformer 7 CN32 Connector for display board 8 CON6ʙCON8 Connector for ions generator 9 CON7 Connector for communicate between the indoor board and the outdoor board 10 CN36 Connector for long range control 11 CN34 Connector for Net Module 12 CN20 Connector for room card Note Other designations PCB 1 Indoor Control PCB 1 SW1 Connector for Forced operation ON OFF switch 2 S...

Страница 12: ...Connector wring diagram Domestic Air Conditioner PCB 1 CN11 CN36 CN20 CN1 CN26 CN32 CON1 SW1 CN27 CN30 CON2 CON6 CON8 CON7 CN34 CN31 SW2 ...

Страница 13: ... N of the module board 10 CN36 Connector for communicate between indoor and outdoor unit 11 CN15 CN16 Connector for electric expansion valves CN10 Connector for the DC power 5V and 15V form the control PCB CN11 Connector for communicate between the control board and the module board P CN1 N CN5 Connector for CN28 CN25 on the control board LO CN6 LI CN7 Connector for reactor AC_L CN8 AC_N CN9 Conne...

Страница 14: ...Connector Wiring Diagram 12 Domestic Air Conditioner PCB 1 CN36 CN17 CN28 CN23 CN18 CN16 CN9 CN8 CN10 CN3 CN11 CN15 CN24 CN25 CN19 CN20 CN21 CN1 CN2 CN47 CN49 CN45 CN22 ...

Страница 15: ...Connector Wiring Diagram 13 Domestic Air Conditioner PCB 2 CN1 CN5 CN6 CN7 CN10 CN11 CN8 CN9 CN2 CN3 CN4 ...

Страница 16: ...pened the indoor fan will operate at the set speed and the mode signal will be sent to the outdoor system The system will keep the original status if Tr Ts Airflow speed control temperature difference 1ć Automatic When Tr Ts 3ć high speed When Ts 1ć Tr Ts 3ć medium speed When Tr Ts 1ć low speed When the sensor is off low speed When the airflow speed has no delay from the high to low switching the ...

Страница 17: ...r is off or Tr Ts 3ć the manual operation can not be made obligatory automatic operation Airgate location control the location for the airgate can be set according to your needs Defrosting function preventing the frosting on the indoor heat exchanger when cooling or dehumidifying When the compressor works continuously for 1 6 minutes adaptable in EEPROM and the temperature of the indoor coils has ...

Страница 18: ...ds If other conditions are satisfied when the compressor stops the indoor system will operate at a light speed The indoor fan will stop when the coil temperature is below the heat start temp 4 Defrosting When the system receives the defrosting signal from outdoors the indoor fan will stop and the indoor temperature display won t change At the time any indoor coil malfunctions will be neglected Whe...

Страница 19: ...icator will be lightened Also the light will be turning off after the timing is finished The followings are several timing methods 1 system on timing The timing indicator will be lightened and the indoor system is under the waiting mode The light will be turned off when the timing is finished and the rest of the system will operate under a normal condition The timing starts since the last receptio...

Страница 20: ...de the display screen will show automatic running sign Under the system off mode the system will not receive the remote control signal if the press on the urgency key doesn t last for 15 seconds or if the key is loosened Urgency operation If you press the urgency key for less than 5 seconds the buzzer will ring when you press the on off key The system will enter the urgency operation when the urge...

Страница 21: ...o the signals the malfunction resume presentation finishes The resume restores after the power supply restores 5 1 15 Abnormality confirmation approaches 1 indoor temperature sensor abnormality Under the operation the normal temperature ranges from 120 degree to 30 degree When the temperature goes beyond this range the abnormality can be confirmed If the temperature goes back into the range the sy...

Страница 22: ...and the buzzer will ring twice 5 1 18 Fixed frequency operation 1 Fixed cooling a under G code condition high speed cooling set 16ć press temperature key and the set key at the same time The system will enter the fixed frequency operation after the buzzer rings twice b The proceeding programs are as the follows Entering the fixed frequency operation you can set the fixed strength location 1 and se...

Страница 23: ...ground light turns to white the back ground light turns to white the background light turns to white the background light is fully lighted for 0 5 second LED screen lights for 0 5 second the step in motor fully output for 0 5 second then the motor doesn t output for 0 5 second the motor fully output again for 0 5 second The test program finishes 5 1 20 Time cutting function Connect the test progra...

Страница 24: ...d of increasing or decreasing the frequency slowly 2 1HZ 10seconds 1 The minimum maximum frequency limitation A While refrigerating is the maximum operation frequency of the compressor IN is the minimum operation frequency of the compressor B While heating is the maximum operation frequency of the compressor IN is the minimum operation frequency of the compressor 1 The frequency limitation which i...

Страница 25: ...t_i Tnh_i the indoor environment temperature Pi i the ability of the indoor unit Refrigeration dehumidification Heating mode K Ki the number of running machines The calculation of the actual output frequency when there is no healthy airflow F F ED P K When the healthy airflow has been set F F ED P K airflow speed K healthy airflow When refrigerating it is needed to satisfy IN F When heating it is ...

Страница 26: ...grade operation the opening size of the expansion valve of the indoor unit is 5 steps When heating is in vain the opening size of the expansion valve of the indoor unit is 55 steps When the outdoor unit is shut down the valve is opened completely for 2 minutes and then begin initialization The scope of refrigerationg valve 90 480 steps The scope of heating valve 80 480 steps The valves are adjuste...

Страница 27: ...0 lasts for 20 seconds Overheating protection of air blowing alarm malfunction to the indoor others don t last Tpg_indoor is the highest value of the effective indoor unit start it and it is in accord with the running state The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger If the temperature is higher than 55 decrease the rotate speed of the compressor and do the ...

Страница 28: ...ter than 0 1HZ second During the starting process of the compressor if the AC current is greater than 15A the frequency of the compressor decreases at the speed of 1HZ second During the starting process of the compressor if the AC current is greater than 13A the frequency of the compressor decreases at the speed of 0 1HZ second During the starting process of the compressor if the AC current is gre...

Страница 29: ...l this will help to relieve the problem of modification rate If during the course of weak magnetic control the modification rate is still not high enough enter into the control of decreasing frequency until the alarm of modification rate is relieved If the socket temperature is higher than 120 the outdoor unit will stop and report malfunction the LED light flashing 36 times The compressor stops fo...

Страница 30: ...ns are not displayed the complete appliance s malfunctions are prior to the units malfunctions Annex 1 Malfunction codes of the out unit Remarks under the mode of refrigeration the malfunctions of each unit s thin pipe temperature sensor are not reported under the mode of heating the malfunctions of each unit s thick pipe temperature sensor are not reported F12 1 Outdoor EEPROM error F1 2 The prot...

Страница 31: ...9 1858 89 8106 1 81 1 66 22 103 3598 93 8305 85 1031 1 80 1 64 21 97 6556 88 7989 80 6728 1 78 1 63 20 92 3028 84 0695 76 5017 1 76 1 62 19 87 2775 79 6222 72 5729 1 74 1 60 18 82 5577 75 4384 68 8710 1 72 1 59 17 78 1230 71 5010 65 3815 1 70 1 57 16 73 9543 67 7939 62 0907 1 68 1 55 15 70 0342 64 3023 58 9863 1 66 1 54 14 66 3463 61 0123 56 0565 1 64 1 52 13 62 8755 57 9110 53 2905 1 62 1 51 12 5...

Страница 32: ...03 1 01 14 16 6711 15 9601 15 2657 1 01 0 99 15 15 9366 15 2770 14 6315 0 98 0 96 16 15 2385 14 6268 14 0271 0 96 0 94 17 14 5748 14 0079 13 4510 0 93 0 92 18 13 9436 13 4185 12 9017 0 91 0 90 19 13 3431 12 8572 12 3778 0 88 0 87 20 12 7718 12 3223 11 8780 0 86 0 85 21 12 2280 11 8126 11 4011 0 83 0 83 22 11 7102 11 3267 10 9459 0 81 0 80 23 11 2172 10 8634 10 5114 0 78 0 78 24 10 7475 10 4216 10 ...

Страница 33: ... 93 59 2 9909 2 7948 2 6092 2 08 1 97 60 2 8936 2 7012 2 5193 2 13 2 01 61 2 8000 2 6112 2 4328 2 17 2 05 62 2 7099 2 5246 2 3498 2 22 2 09 63 2 6232 2 4413 2 2700 2 26 2 13 64 2 5396 2 3611 2 1932 2 31 2 17 65 2 4591 2 2840 2 1195 2 36 2 21 66 2 3815 2 2098 2 0486 2 40 2 25 67 2 3068 2 1383 1 9803 2 45 2 29 68 2 2347 2 0695 1 9147 2 49 2 34 69 2 1652 2 0032 1 8516 2 54 2 38 70 2 0983 1 9393 1 790...

Страница 34: ...0 8061 0 7233 0 6484 4 29 3 88 104 0 7848 0 7036 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 5478 4 63 4 16 110 0 6700 0 5977 0 5328 4 69 4 21 111 0 6528 0 5820 0 5183 4 74 4 26 112 0 6361 0 5667 0 5043 4 80 4 31 113 0 6200 0 5518 0 4907 4 86 4 36 114 0 6043 0 5374 0...

Страница 35: ...956 47 1666 43 6714 1 54 1 44 8 48 3178 44 8454 41 5851 1 51 1 42 7 45 8860 42 6525 39 6112 1 49 1 40 6 43 5912 40 5800 37 7429 1 47 1 39 5 41 4249 38 6207 35 9739 1 45 1 37 4 39 3792 36 7676 34 2983 1 43 1 35 3 37 4465 35 0144 32 7108 1 41 1 33 2 35 6202 33 3552 31 2062 1 38 1 31 1 33 8936 31 7844 29 7796 1 36 1 29 0 32 2608 30 2968 28 4267 1 34 1 28 1 30 7162 28 8875 27 1431 1 32 1 26 2 29 2545 ...

Страница 36: ...04 35 6 9852 6 7008 6 4222 1 10 1 07 36 6 7273 6 4459 6 1707 1 13 1 11 37 6 4803 6 2021 5 9304 1 17 1 14 38 6 2437 5 9687 5 7007 1 21 1 18 39 6 0170 5 7454 5 4812 1 25 1 22 40 5 7997 5 5316 5 2712 1 29 1 25 41 5 5914 5 3269 5 0704 1 33 1 29 42 5 3916 5 1308 4 8783 1 37 1 33 43 5 2001 4 9430 4 6944 1 41 1 36 44 5 0163 4 7630 4 5185 1 45 1 40 45 4 8400 4 5905 4 3500 1 49 1 44 46 4 6708 4 4252 4 1887...

Страница 37: ...4592 1 3360 3 02 2 80 80 1 5454 1 4149 1 2942 3 07 2 84 81 1 5000 1 3721 1 2540 3 12 2 88 82 1 4562 1 3308 1 2151 3 17 2 93 83 1 4139 1 2910 1 1776 3 22 2 97 84 1 3730 1 2525 1 1415 3 27 3 01 85 1 3335 1 2153 1 1066 3 32 3 06 86 1 2953 1 1794 1 0730 3 38 3 10 87 1 2583 1 1448 1 0405 3 43 3 15 88 1 2226 1 1113 1 0092 3 48 3 19 89 1 1880 1 0789 0 9789 3 53 3 24 90 1 1546 1 0476 0 9497 3 58 3 28 91 1...

Страница 38: ...13654 1707 11267 8730 9290 2526 2 95 2 44 28 12735 8378 10531 3695 8700 6388 2 93 2 44 27 11885 1336 9847 7240 8152 2338 2 92 2 43 26 11096 6531 9212 8101 7641 8972 2 91 2 42 25 10365 4565 8622 8491 7166 7474 2 90 2 42 24 9687 0270 8074 3787 6724 1389 2 88 2 41 23 9057 2314 7564 2244 6311 6413 2 87 2 41 22 8472 2852 7089 4741 5927 0206 2 86 2 40 21 7928 7217 6647 4547 5568 2222 2 84 2 39 20 7423 3...

Страница 39: ...0743 919 3533 2 35 2 09 12 1109 4661 985 0146 873 7359 2 33 2 08 13 1051 4226 934 9440 830 6210 2 31 2 07 14 996 7169 887 6792 789 8583 2 29 2 06 15 945 1404 843 0486 751 3077 2 27 2 04 16 896 4981 800 8922 714 8380 2 26 2 03 17 850 6086 761 0603 680 3265 2 24 2 02 18 807 3024 723 4134 647 6580 2 22 2 00 19 766 4212 687 8205 616 7252 2 20 1 99 20 727 8172 654 1596 587 4271 2 18 1 98 21 691 3524 62...

Страница 40: ... 7403 132 6980 125 0027 1 44 1 38 56 134 8559 127 3081 120 0746 1 42 1 36 57 129 2457 122 1630 115 3645 1 40 1 34 58 123 8956 117 2504 110 8618 1 37 1 32 59 118 7926 112 5589 106 5564 1 35 1 30 60 113 9241 108 0776 102 4388 1 32 1 28 61 109 2784 103 7961 98 5000 1 30 1 26 62 104 8443 99 7046 94 7315 1 28 1 23 63 100 6112 95 7939 91 1253 1 25 1 21 64 96 5692 92 0553 87 6735 1 23 1 19 65 92 7088 88 ...

Страница 41: ...48 100 26 1569 24 8685 23 6222 1 57 1 52 101 25 3290 24 0574 22 8291 1 61 1 55 102 24 5311 23 2765 22 0662 1 65 1 59 103 23 7620 22 5245 21 3323 1 69 1 63 104 23 0205 21 8002 20 6261 1 73 1 66 105 22 3055 21 1025 19 9465 1 77 1 70 106 21 6159 20 4303 19 2924 1 81 1 74 107 20 9508 19 7825 18 6626 1 85 1 77 108 20 3091 19 1582 18 0563 1 89 1 81 109 19 6899 18 5564 17 4723 1 93 1 85 110 19 0924 17 97...

Страница 42: ... 10 0970 9 3352 2 81 2 63 130 10 6084 9 8082 9 0602 2 86 2 67 131 10 3151 9 5288 8 7945 2 91 2 71 132 10 0312 9 2586 8 5378 2 95 2 75 133 9 7563 8 9971 8 2895 3 00 2 80 134 9 4901 8 7441 8 0495 3 05 2 84 135 9 2322 8 4993 7 8175 3 09 2 88 136 8 9824 8 2623 7 5931 3 14 2 92 137 8 7404 8 0329 7 3760 3 19 2 96 138 8 5059 7 8108 7 1660 3 24 3 00 139 8 2787 7 5958 6 9629 3 29 3 04 140 8 0584 7 3875 6 7...

Страница 43: ...erating current Check for insufficient gas Large operating noise and vibrations Check the installation condition Check to make sure that the required spaces for installation specified in the Technical Guide etc are provided 6 2 Problem Symptoms and Measures SymptRm Check Item Details of Measure None of the units Check the power supply Check to make sure that the rated voltage is supplied 6 Service...

Страница 44: ... g a P M P I f o n o i t c e t o r p e h T 2 1 F F22 3 Overcurrent protection of AC electricity for the outdoor model Page 48 F3 4 Communication fault between the IPM and outdoor PCB Page 49 F19 6 Power voltage is too high or low Page 50 F4 8 Overheat protection for Discharge temperature Page 51 F21 10 Defrost temperature sensor failure Page 43 F7 11 Suction temperature sensor failure Page 43 F6 1...

Страница 45: ...t is more than 4 92V or less than 0 08V during compressor Decision operation Conditions z Note The values vary slightly in some models Supposed Faulty connector connection Causes Faulty thermistor Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the connector of ...

Страница 46: ...detected by the EEPROM are used to determine MCU Malfunction Detection Malfunction When the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Faulty EEPROM data Causes Faulty EEPROM Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard 44 ...

Страница 47: ...ulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Check whether terminals on indoor pcb is well Electrify the machine again and turn it on in the cooling operation Measure voltage between the positions 1and 3 of Terminal CN5 on the indoor PCB the voltage is about 90 220vac check whether motor ca...

Страница 48: ...or or parts damage may be occurred Check whether Terminal on the outdoor mainboard is well inserted Is it normal Yes NO Reinsert the terminals Electrify the machine again and turn it on in the Cool state with the remote controller check whether motor can run Yes Measure the voltage between 3 and 6 of the terminal about 0 5v Is it normal N0 the motor of the outdoor unit is damaged and needs replaci...

Страница 49: ...aulty PCB of IPM module Compressor wiring disconnected Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing 1ǃThe system may have be...

Страница 50: ...eshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing Repair the power supply The system may have been over or under charged with gas which can ...

Страница 51: ...Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 1 Check whether Terminal CN23 and CN24 on the outdoor mainboard CN10 and CN11 on IPM module 2 Check whether the connected wire between IPM and outdoor Are they good Electrify the machine again and turn it on Check whether the voltage between 1 and 2 of Terminal CN23 ...

Страница 52: ...y voltage not as specified Causes the IPM module is broken the outdoor PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller Check whether the compressor is started normally Is it ok Yes Maybe there is some disturbance NO No 230 is ok Ye...

Страница 53: ...lectrify the machine again and turn it on with the remote controller then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit The temperature exceeds 110 ć shortly after the machine starts up 1 The cryogen may have been leaked during installation or there may be leakage in the piping system 2 There may be other causes to make the exhaust temperature too ...

Страница 54: ...nected Causes The indoor PCB is broken The outdoor PCB is broken The Module PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred NO A Yes NO Yes No YES Restart the a c and it becomes normally If starting up normally but malfunction occurs again after a while Check whether the linking cable between the ind...

Страница 55: ...door unit with a multimeter If 230VAC is available but 310DC not the power module is damaged replace it with a new one Test the outdoor power supply 230VAC and 310VDC with a multimeter The outdoor mainboard is damaged replace it with a new one The indoor mainboard is damaged replace it with a new one If the value varies between 0 and 80 VAC the outdoor mainboard is damaged replace it with a new on...

Страница 56: ...Ƶ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Within 3 minutes after the machine is supplied with power and turned on with the remote controller check whether the compressor can start up 1 The wiring of compressor is incorrect or the connection is poor 2 The compressor is damaged At first the compressor ...

Страница 57: ...eat exchanger Ƶ Faulty heat exchange sensor Ƶ Insufficient gas Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller check whether the wind temperature is below 65ć The malfunction is reported after the machine has run for some time 1 ǃ Check room tem...

Страница 58: ...1 2 3 5 8 5 6 4 7 4 POWER SOFT button is not available for 07k 09k 12k Exponent Parts and Functions 7 Exponent Domestic Air Conditioner 56 ...

Страница 59: ...e test operation when the room normal operation your finger from the switch the cooling Continue to press the test operation switch for more than 5 seconds After you hear the Pi sound twice release Test operation switch is the same as emergency switch operation starts with the air flow speed Hi Emergency operation and test operation Use this operation only when the remote controller is defective o...

Страница 60: ...r 1 hours temp rises by 1 futher The unit will run for further 6 hours then stops Temp is higher than temp setting so that room temperature won t be too low for your sleep 1 hours after SLEEP mode starts temp will become 2 lower than temp setting After another 1 hours temp decrease by 2 futher After more another 3hours temp rises by 1 futher The unit will run for further 3 hours then stops Temp is...

Страница 61: ...the condition before the setting of healthy airflow function Notice Do not direct the flap by hand Otherwise the grille will run incorrectly If the grille is not run correctly stop for a minute and then start adjusting by remote controller blows direct to the body 2 In heating it is better to select the 3 In cooling it is better to select the mode mode Setting of proper room temperature Close door...

Страница 62: ...ocatalyst air purifying filter face outside and the black side face the unit The green side of the bacteria killing medium air and the white side face the unit Please keep the bacteria killing medium air purifying filter in avoid long time directly sunshine when you stop using it or its ability of sterilization will be reduced The bacteria killing medium air purifying filter will be used for a lon...

Страница 63: ... reconstruct by yourself Do not use for the purpose of storage of food art work precise equipment breeding or cultivation CAUTION Take fresh air occasionally especially when gas appliance is running at the same time PROHIBITION STRICT ENFORCEMENT Do not operate the switch with wet hand PROHIBITION PROHIBITION PROHIBITION PROHIBITION PROHIBITION Do not install the unit near a fireplace or other hea...

Страница 64: ...ct the air conditioner immediately until 3 minutes have Cautions 3 If the fuse of indoor unit on PC board is it with the type of T 3 15A 250V outdoor broken change it with the type of T 25A 250V Do not obstruct or cover the ventilation conditoner Do not put fingers inlet outlet and swing louver Do not allow children to play with the air conditioner case should children be allowed to sit on the out...

Страница 65: ...tdoor unit ƽ Place where cold air can be spread in a room entirely ƽ Place nearby a power receptacle with enough space around ƽ Place where the distance of more than lm from televisions radios wireless apparatuses and ﬂuorescent lamps can be left ƽ In the case of ﬁxing the remote controller on a wall place where the indoor unit can receive signals when the ﬂuore scent ƽ lamps in the room are light...

Страница 66: ...en fasten them with the adhesive tape ƽ Left Left rear piping In case of left side piping cut away with a nipper the lid for left piping ƽ In case of left rear piping bend the pipes according to the piping direction to ƽ the mark of hole for left rear piping which is marked on heat insulation materials 1 Insert the drain hose into the dent of heat insulation materials of indoor unit 2 Insert the i...

Страница 67: ...e Wing nut type Imperial type A 0 0 5mm 1 0 1 5mm 1 5 2 0mm rth leakage breaker Lean Damage of ﬂare Partial Too outside Correct Incorrect On Drainage It becomes high midway The gap with the ground is too small There is the bad smell from a ditch It waves The end is imm ersed in water Please install the drain hose so as to be downward slope without fail Please don t do the drainage as shown below ƽ...

Страница 68: ...name plate C additional refrigerant amount charged in the field D total refrigerant charge E outdoor unit F refrigerant cylinder and manifold for charging IMPORTANT INFORMATION REGA RDING THE REFRIGERANT USED In accordance with the directive 2002 96 CE of the European parliament herewith we inform the consumer about the dis posal requirements of the electrical and electronic products conditioning ...

Страница 69: ...Heating insulating material Piping hole cover Fixing of outdoor unit Fix the unit to concrete or block ƽ with bolts 10mm and nuts ﬁrmly and horizontally When ﬁtting the unit to wall ƽ surface roof or rooftop ﬁx a supporter surely with nails or wires in consideration of earthquake and strong wind If vibration may affect the ƽ house ﬁx the unit by attaching a vibration proof mat The marks from to in...

Страница 70: ...WARNING CAUTION 68 Installation ...

Страница 71: ...dicated on the unit when installing or relocating the unit The use of any other refrigerant or an introduction of air into the unit circuit may cause the unit to run an abnormal cycle and abnormal cycle and cause the unit to burst In the event of a refrigerant gas leak provide adequate ventilation to the room If leaked refrigerant gas is exposed to a heat source noxious gases may form Do not touch...

Страница 72: ...tions Use liquid refrigerant to charge the system Charge the unit with gas refrigerant will cause the refrigerant in the cylinder to change its composition and will lead to a drop in performance Do not use a charging cylinder The use of charging cylinder will change the composition of the refrigerant and lead to power loss Exercise special care when handling the tools An introduction of foreign ob...

Страница 73: ...the instructions in the manual and make sure that they properly drain water so as to avoid dew condensation If not installed properly they may cause water leaks and damage the furnishings Do not spray water on the air conditioners or immerse the air conditioners in water Water on the unit presents a risk of electric shock Periodically check the platform on which is placed for damage to prevent the...

Страница 74: ...ant charging Vacuum Gauze Checking vacuum degree Tools Materials Use Notes Charging Cylinder Refrigerant Charging Must not be used with R410 type units CAUTION Items to Be Checked 1 Verify the type of refrigerant used by the unit to be serviced Refrigerant Type R410A 2 Check the symptom exhibited by the unit to be serviced Look in this service handbook for symptoms relating to the refrigerant cycl...

Страница 75: ... clutch type flare tool is used to machine flares on units that use R410A make the protruding part of the pipe between 1 0 and 1 5mm Copper pipe gauge for adjusting the length of pipe protrusion is useful Size mm Radial Thickness mm Size inch Type Type O pipes Type 1 2H or Hpipes Piping Materials Types of Copper Pipes Reference The table shows the standards in Japan Using this table as a reference...

Страница 76: ...74 Installation ...

Страница 77: ...NO Wind direction Air outlet Cushion rubber 4 Installation dimension Unit mm Model W D H L1 L2 L3 YJU2YH014BARRA X 780 270 540 566 106 5 317 810 288 688 583 113 5 319 5 Installation YJU2YH018BARRA X ...

Страница 78: ...m Max Length B1 max 20m B2 max 20m Max Elevation A1 max 15m A2 max 15m In case the pipe total length B1 B2 is more than 20m the refrigerant should be charged according to 20 g m B Outdoor unit Indoor unit A1 B1 Indoor unit A2 B2 Outdoor unit Indoor unit B1 Indoor unit B2 Outdoor unit Indoor unit Oil trap A3 A3 max 15m B1 B2 max 30m Outdoor unit Indoor unit A1 B1 Indoor unit A2 B2 CAUTION Indoor un...

Страница 79: ...Pressurize for over 3 minutes at 4 2MPa After above 77 Installation ...

Страница 80: ...en charge the liquid refrigerant into air conditioner according to the amount marked on the name plate Please do not let other cooling medium except speciﬁed one R410A or air ƽ enter into the cooling circulation system Otherwise there will be abnormal high pressure in the system to make it crack and lead to personal injuries Each indoor unit musts to be vacuumed according to the above steps ƽ ƽ 78...

Страница 81: ...N 1 L 2 Outdoor unit A Outdoor unit B POWER To Indoor unit A To Indoor unit B DOUBLE DOUBLE 14K Outdoor unit A Outdoor unit B POWER To Indoor unit A To Indoor unit B 18K 1 L 2 N T 25A 250V The type of connecting wire is H07RN F Installation YJU2YH018BARRA X YJU2YH014BARRA X YJU2YH018BARRA X ...

Страница 82: ... 12 10 5 13 19 1 18 4 11 6 25 25 25 110 Suction temperature sensor failure When the The wiring of compressor is wrong or the connection is poor 17 16 15 m Lack of refrigerant Check if there is leakage in the unit Installation ...

Страница 83: ...81 Domestic air conditioner Removal of procedure 9 ...

Страница 84: ...stic air conditioner Removal of procedure P l ease embed the two during installat ion hooks on air filter com pletely into the unit Please embed the air filters into the unit along the grooves as installation ...

Страница 85: ...ase close the panels before start the removal procedure of front grille one side to another to release each axis until it is on the horizontal position and then release the pivots on both sides of the unit to remove the front panel Remocal of front panel ...

Страница 86: ...84 Domestic air conditioner Removal of procedure three 3 HOOKS ...

Страница 87: ...85 Domestic air conditioner Removal of procedure horizontal flap flap flap flap flap ...

Страница 88: ...86 Domestic air conditioner Removal of procedure Remove the swing Moter Remove the vertical blades 2 1 Every blade go round and round then move it ...

Страница 89: ...87 Domestic air conditioner Removal of procedure ...

Страница 90: ...Domestic air conditioner Removal of procedure 3 88 ...

Страница 91: ...Domestic air conditioner Removal of procedure 89 ...

Страница 92: ...Domestic air conditioner Removal of procedure 90 ...

Страница 93: ...Domestic air conditioner Removal of procedure Outdoor Unit Removal of Outdoor Panel 91 ...

Страница 94: ...92 Domestic air conditioner Removal of procedure Loosen the top panel screws 1 2 Lift the top panel ...

Страница 95: ...93 Domestic air conditione Removal of procedure Loosen the csrews and pull the panel ...

Страница 96: ...94 Domestic air conditioner Removal of procedure 2 Pull the wind circle Push the hooks first Remove the inlet grill ...

Страница 97: ...95 Domestic air conditioner Removal of procedure ...

Страница 98: ...96 Domestic air conditioner Removal of procedure ...

Страница 99: ...97 Domestic air conditioner Removal of procedure 2 Loosen the fixing screws and remove the motor ...

Страница 100: ...98 Domestic air conditioner Removal of procedure ...

Страница 101: ...99 Domestic air conditioner Removal of procedure and remove the reactor Loosen the screw ...

Страница 102: ...100 Domestic air conditioner Removal of procedure Loosen the marked screws and pull out the backgurd ...

Страница 103: ...101 Domestic air conditioner Removal of procedure Loosen the marked screws and remove the stop valves Loosen the marked screws and remove the stop valves bracket 2 3 ...

Страница 104: ...iagrams INDOOR UNIT 㒓䏃 8 6 WUDQVIRUPHU HPHUJHQF VZLWFK IDQ PRWRU 5 LRQ JHQHUDWRU 72 287 225 81 7 5 URZQ ODFN 5 5HG HOORZ UHHQ KLWH EOXH PELHQW WHPS VHQVRU 3LSLQJ WHPS VHQVRU louver motor VLQJDO UHFHLYHU ERDUG Romm Card 102 Wring diagram ...

Страница 105: ...52 10K R51 10K R55 10K R60 10K 5V R54 10K R49 10K R42 10K A B 5V C20 0 1uF 25 35 SWITCH RST R63 10K R71 10K R74 10K R77 10K R65 10K R75 10K R78 10K COMM_TX COMM_RX ऩᇐᵓℹ䖯 ᴎ 䆒䅵 ᅵḌ ᅝ ܝ 㨷䞥ⲯ C18 0 1uF 25 35 12V R61 680Ω C45 1 2uF 450V ݙ 亢ᴎ C10 22nF 275VAC R57 47Ω 1W L1 LHB1308 171 171uH 0 8A 1 2 3 CN26 2 2 3 3 8 8 6 6 IC7 R3BMF51 220V L N 220V_L 5V 亢ᴎড作 R62 51K R58 1K C23 Comment 1nF C21 Comment 10nF 1...

Страница 106: ... 㒘ড়ϔᢪϔᅸ ݙ 䗮䆃 COMM_TX COMM_RX 1 CON2 1 21 FUSE1 T3 15A 250VAC RV1 TVR14561 CX1 0 1uF 275VAC 220VAC 50Hz L N 220V_L L N 1 2 3 1 1 2 CN30 RTB 1 5 2P বय़ E1 2200uF 35V 105ć IN G N D OUT IC6 L7805CV 1 5A C4 0 1uF 5V C17 0 1uF E6 470uF 16V 105ć R39 10K R84 4 7K C14 1nF R68 10K 5V R36 1K C25 1nF 12V IRQ IRQ 1 CON1 N 2 2 0 V _ L HS1 5 5 N5 SS8050LT1H D11 1N4007 ZD1 1N4746A 18V 1W D12 1N4007 N4 2SC2412K D5 ...

Страница 107: ... OFF FOR YOUR SAFETY BE SURE TO WAIT AT LEAST 5 MINUTES AFTER PLUG OFF AND USE A TESTER TO CONFIRM THE VOLTAGE BETWEEN CONNECTOR AND ON MAIN PCB BOARD IS LESS THAN DC 10V BEFORE START SERVICING OR LED2 EXTINGUISHED Remarks 1 the dotted parts are optional for different unit 2 The components of main pcb board is fixed facing to the compressor 105 Wring diagram ...

Страница 108: ...V C29 104 50V E17 4 7U 16V E16 4 7U 16V E19 4 7U 16V E18 4 7U 16V E15 4 7U 16V E14 4 7U 16V E13 4 7U 16V XG A CG A 5V 5V XG B CG B 5V 5V 5V R59 10K 1 R58 10K 1 R57 1K R50 1K R56 1K R45 1K R44 1K C20 102 50V C19 102 50V R67 20K 1 R65 20K 1 R63 47K 1 R68 1K R66 1K R64 1K C25 104 50V C26 104 50V C24 104 50V 5V CS 5V HW 5V TC 1 2 3 CN24 5V COM GND J60 J61 1 2 3 4 5 CN34 J51 J52 J20 1 CN42 ERROR J53 J1...

Страница 109: ...202 104 C203 104 C207 104 C208 104 IC5 HA17393AF IC6 HA1630D06 IC6 HA1630D06 R221 140 R216 10 R224 4 7K R211 1K R212 9 1K R209 1K R223 330 R210 6 8K R214 100 R207 1K 5V TR1 MMBT9013 5V 15V IC7 TLP251 2 3 5 6 8 4 8 5 6 7 R015 330 R208 6 8K R014 330 R013 330 R018 4 7K R016 1K R012 4 7K R011 4 7K R008 4 7K R019 4 7K R213 100 1 2 3 4 5 6 7 8 IC4 HA1630D06 IC4 HA1630D06 R206 1K R205 1K R203 1K R204 6 2...

Страница 110: ...The end ...

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