Haier N-Series Service Manual
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Haier N-Series Service Manual

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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals 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
SERVICE MANUAL
DC Inverter FREE MATCH N-Series
Haier Group
Wall Mounted Type
Model No.
WARNING
2016 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
1U26QE4ERA
1U35QE4ERA
Version V1
Date 2016-05-13

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Summary of Contents for Haier N-Series

  • Page 1 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2016 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...

  • Page 2: Table Of Contents

    Contents Contents 1. Introduction ....................1 2. Specifications..................7 3. Sensors list ....................8 4. Piping diagrams ..................9 5. Operation range ..................10 6. Printed Circuit Board Connector Wiring Diagram .........11 7. Functions and Control................8. Dimensional drawings................9. Conter of gravity ................... 10. Service Diagnosis .................33 ......

  • Page 3: Introduction

    Introduction 1 Introduction 1.1 Model name explanation Apply toT1; 220~240V50HZ/1ph DC inverter Heat pump & R410A refrigerant Version number Australia Platform of outdoor units: Q (Q platform) Nominal cooling capacity (2600W) Type of outdoor unit : U (normal type) The maximum combination number Apply toT1;...
  • Page 4 Introduction 1.2 Safety Cautions Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead to serious accidents under some conditions if they are not followed.
  • Page 5 Introduction Warning Do not repair the electrical components with wet hands . Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock.
  • Page 6 Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. Be sure to use the specified cable to connect between the indoor and outdoor units.
  • Page 7 Introduction Do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustible gas leaks and remains around the unit, it can cause a fire. Be sure to install the packing and seal on the installation frame properly. If the packing and seal are not installed properly, water can enter the room and wet the furniture and floor.
  • Page 8 Introduction 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.

  • Page 9: Specifications

    Specification 2 Specifications-1U26QE3ERA NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT n i l 2.7(1.1-3.5) 3.5(1.3-4.4) Capacity rated Btu/h 9000(3800-12100) 11800(4500-15000) Power Consumption(Rated) 4.29 Annual energy consumption ³ 1.2*10-³ TECHNICAL SPECIFICATIONS-UNIT Dimensions H*W*D 780×290×597 Packaged H*W*D 923×393×680 Dimensions 35.5 38.5 Sound level B(A)

  • Page 10: Sensors List

    Specification TECHNICAL SPECIFICATIONS-OTHERS Refrigerant type R410a Refrigerant charge Refrigerant Maximum allowable distance circuit between indoor an outdoor Maximum allowable level difference Refrigerant control Capillary Φ6.35 liquid Piping connections Φ9.52 (external diameter) Φ16 drain Heat insulation type Both liquid and Gas pipes Max.
  • Page 11 Specification 2 Specifications-1U35QE3ERA NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT n i l 3.55(1.2-4.3) 4.0(1.3-5.8) Capacity rated Btu/h 12000(4100-14680) 13650(4430-19800) Power Consumption(Rated) 3.85 Annual energy consumption ³ 1.6*10-³ TECHNICAL SPECIFICATIONS-UNIT Dimensions H*W*D 780×290×597 Packaged H*W*D 923×393× 680 Dimensions 35.5 38.5 Sound level...
  • Page 12 Specification TECHNICAL SPECIFICATIONS-OTHERS Refrigerant type R410a Refrigerant charge Refrigerant Maximum allowable distance circuit between indoor an outdoor Maximum allowable level difference Refrigerant control Capillary Φ6.35 liquid Piping connections Φ9.52 (external diameter) Φ16 drain Heat insulation type Both liquid and Gas pipes Max.

  • Page 13: Piping Diagrams

    Piping diagrams 4 Pinping diagrams Electronic expansion valve Electronic expansion valve Domestic air conditioner...

  • Page 14: Operation Range

    Operation range 5 Operation range Domestic air conditioner...

  • Page 15: Printed Circuit Board Connector Wiring Diagram

    Wiring diagrams 6. Printed Circuit Board Connector Wiring Diagram Connectors PCB (1) (Outdoor Control PCB) Series Connect with load connector Connector for power N and L Connector for ground CN23 Connector for DC POWER 15V and 5V to the module board Connector for CN2, CN1 on the module board CN10 CN22...
  • Page 16 Connector Wiring Diagram PCB (1) CN28 CN25 CN23 CN24 CN22 CN50 CN17 CN47 CN45 CN15 CN11 CN36 CN10 CN9 Domestic Air Conditioner...
  • Page 17 Connector Wiring Diagram PCB (2) CN11 CN10 09-12K Domestic Air Conditioner...
  • Page 18 Functions and control Wiring diagrams SUCTION TEMP.SENSOR DON'T TOUCH CAPACITOR, EVEN AFTER PLUG-OFF ( DANGER OF ELECTRIC SHOCK) THE CAPACITOR RETAINS HIGH VOLTA GE EVEN AFTER THE PLUG-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 (ON MAIN PCB BOARD) IS LESS THAN DC 10V BEFORE START SERVICING OR LED2...

  • Page 19: Functions And Control

    Functions and control 7. Functions and Control 7.1 Main functions and control specification 7.1.1 The operation frequency of outdoor unit and its control 7.1.1.1 The operation frequency control of compressor The operation frequency scope of compressor Mode Minimun operation frequency Maximun operation frequency 7.1.1.2 The starting of compressor When the compressor is started for the first time, it must be kept under the conditions of 58Hz,88Hz for...
  • Page 20 Functions and control < ≥ Max_hz3 90 HZ Wh_c < ≥ Max_hz5 60 HZ Wh_c Remarks: the above are not only the maximum frequency limitations of the complete appliance which are affected by the environment, but also the maximum ability limitation of the system. When the starting ability is not the maximum, its maximum frequency limitation is calculated by the following equations: The frequency limitation which is affected by the temperature and under the condition of actual ability the actural running system ability*the maximum frequency which is limited by the temperature and under the...
  • Page 21 Functions and control During the compressor is started for 3 seconds, the outdoor fan is controlled the airflow speed according to the temperature conditions of the outdoor environment. Tao < Tao 29 Tao < After the compressor is started for 3 seconds, the outdoor fan is controlled the airflow speed according to the temperature conditions of the outdoor environment and frequency of compressor.
  • Page 22 Functions and control 7.1.5 Protection function 7.1.5.1 TTC high temperature-preventing protection Once the machine is started, it can run TTC overheating protection of air-blowing, but air-blowing sensor malfunction must alarm after 4 minutes during which the compressor is started (during the course of self-detection, there’s no such limitation) Sensor detection methods: 100 times (one cycle of procedure run is one time, and about 5ms, detection method for each time: continuously sampling for 8 times, then order them and take the mean value of the...
  • Page 23 Functions and control Remarks: the outdoor unit 7.1.5.3 The control of preventing the overcurrent of the compressor During the starting process of the compressor, if the current of the compressor is greater than 15A for 3 seconds, stop the compressor and alarm, after 3 minutes, start it again, if such state appears 3 times in 20 minutes, stop the compressor and alarm, and confirm the malfunction.
  • Page 24 Functions and control When Tpg_indoor begins to rise again, and ice_temp_2 Tpg_indoor ice_temp_3 , the frequency of thecompressor doesn’t change. When ice_temp_3 Tpg_indoor ice_temp_4 , the frequency of the compressor increases at the speed of 1HZ/10seconds. For example, Tpg_indoor 0 last for 2 minutes, and then the outdoor unit will stop, and report underload malfunction, but don’t send malfunction report to the indoor.
  • Page 25 Functions and control Frost-removing temperature sensor failure Ambient temperature sensor failure Exhaust temperature sensor failure Communication fault between indoor and outdoor units deviate from the normal for the compressor ---- Loop of the station detect error High work-intense protection Overcurrent of the compressor Overcurrent protection for single-phase of the compressor ---- The socket protect...
  • Page 26 Functions and control 130.2371 117.4366 105.7989 -1.87 1.70 122.8484 110.9627 100.1367 -1.85 1.69 115.9272 104.8882 94.8149 -1.83 1.67 109.4410 99.1858 89.8106 -1.81 1.66 103.3598 93.8305 85.1031 -1.80 1.64 97.6556 88.7989 80.6728 -1.78 1.63 92.3028 84.0695 76.5017 -1.76 1.62 87.2775 79.6222 72.5729 -1.74 1.60...
  • Page 27 Functions and control 13.3431 12.8572 12.3778 -0.88 0.87 12.7718 12.3223 11.8780 -0.86 0.85 12.2280 11.8126 11.4011 -0.83 0.83 11.7102 11.3267 10.9459 -0.81 0.80 11.2172 10.8634 10.5114 -0.78 0.78 10.7475 10.4216 10.0964 -0.75 0.75 10.3000 10.0000 9.7000 -0.75 0.75 9.8975 9.5974 9.2980 -0.76 0.76...
  • Page 28 Functions and control 2.5396 2.3611 2.1932 -2.31 2.17 2.4591 2.2840 2.1195 -2.36 2.21 2.3815 2.2098 2.0486 -2.40 2.25 2.3068 2.1383 1.9803 -2.45 2.29 2.2347 2.0695 1.9147 -2.49 2.34 2.1652 2.0032 1.8516 -2.54 2.38 2.0983 1.9393 1.7908 -2.59 2.42 2.0337 1.8778 1.7324 -2.63 2.46...
  • Page 29 Functions and control 0.6877 0.6140 0.5478 -4.63 4.16 0.6700 0.5977 0.5328 -4.69 4.21 0.6528 0.5820 0.5183 -4.74 4.26 0.6361 0.5667 0.5043 -4.80 4.31 0.6200 0.5518 0.4907 -4.86 4.36 0.6043 0.5374 0.4775 -4.92 4.41 0.5891 0.5235 0.4648 -4.98 4.45 0.5743 0.5100 0.4524 -5.04 4.50...
  • Page 30 Functions and control 2434.5487 2112.5459 1831.4826 -2.56 2.24 2296.6230 1996.2509 1733.6024 -2.55 2.23 2167.2730 1887.0018 1641.4966 -2.53 2.22 2045.9191 1784.3336 1554.7931 -2.52 2.21 1932.0242 1687.8144 1473.1460 -2.50 2.20 1825.0899 1597.0431 1396.2333 -2.48 2.19 1724.6540 1511.6468 1323.7551 -2.47 2.17 1630.2870 1431.2787 1255.4324 -2.45 2.16...
  • Page 31 Functions and control 239.0983 221.9825 205.9065 -1.71 1.61 228.4809 212.4060 197.2844 -1.69 1.59 218.3860 203.2887 189.0648 -1.67 1.57 208.7855 194.6066 181.2273 -1.65 1.55 199.6531 186.3369 173.7524 -1.63 1.54 190.9639 178.4584 166.6217 -1.60 1.52 182.6945 170.9508 159.8181 -1.58 1.50 174.8228 163.7951 153.3249 -1.56 1.48...
  • Page 32 Functions and control 38.9643 37.5045 36.0668 -1.11 1.09 37.6569 36.2078 34.7831 -1.14 1.13 36.3996 34.9622 33.5513 -1.18 1.16 35.1903 33.7653 32.3689 -1.22 1.19 34.0269 32.6151 31.2338 -1.26 1.23 32.9075 31.5096 30.1438 -1.30 1.27 31.8302 30.4467 29.0970 -1.33 1.30 30.7933 29.4246 28.0915 -1.37 1.34...
  • Page 33 Functions and control 9.7563 8.9971 8.2895 -3.00 2.80 9.4901 8.7441 8.0495 -3.05 2.84 9.2322 8.4993 7.8175 -3.09 2.88 8.9824 8.2623 7.5931 -3.14 2.92 8.7404 8.0329 7.3760 -3.19 2.96 8.5059 7.8108 7.1660 -3.24 3.00 8.2787 7.5958 6.9629 -3.29 3.04 8.0584 7.3875 6.7664 -3.33 3.09...

  • Page 34: Dimensional Drawings

    Dimensinal drawings 8.Dimensional drawings unit:mm 12.7 9.Center of gravity unit:mm 294.4 112.9 Domestic air conditioner...

  • Page 35: Service Diagnosis

    Connector Wiring Diagram 1 .Service Diagnosis 1 .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.
  • Page 36 Connector Wiring Diagram Indoor Malfunction Heat-exchange sensor failure Page34 Indoor fan motor malfunction Page35 Outdoor Overcurrent protection of AC electricity Page36 Malfunction for the outdoor model Communication fault between the IPM and Page39 outdoor PCB Power voltage is too high or low Page40 Overheat protection for Discharge Page41...
  • Page 37 Seivice diagnosis Check the connector connection. Correct the connection Is it normal? Thermistor resistance check Replace the thermistor Is it normal? Replace the indoor unit PCB Thermistor resistance check method: Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester. The relationship between normal temperature and resistance is shown in the value of indoor thermistor.
  • Page 38 Seivice diagnosis 10.3.3 Outdoor DC fan motor fault Outdoor display LED1 flash 9 times Method of DC fan motor is detected by checking the fan running condition and so on Supposed DC fan motor protection dues to the DC fan motor faulty Causes DC fan motor protection dues to faulty PCB Troubleshooting...
  • Page 39 Seivice diagnosis 10.3.4 IPM protection Outdoor display LED1 flash 2 times Method of IPM protection is detected by checking the compressor running condition and so on Malfunction Detection ■ The system leads to IPM protection due to over current Malfunction ■...
  • Page 40 Seivice diagnosis 10.3.5 Over-current of the compressor Outdoor Display LED1 flash 3 or 24 or 25 times Method of The current of the compressor is too high Malfunction Detection Malfunction when the IPM Module is damaged Decision or the compressor is damaged. Conditions power supply voltage is too low or too high ■...
  • Page 41 Seivice diagnosis 10.3.6 The communication fault between IPM and outdoor PCB Outdoor display: LED1 flash 4 times Method of Communication is detected by checking the IPM module and the outdoor PCB Malfunction Detection ■ The outdoor PCB broken leads to communication fault Malfunction ■...
  • Page 42 Seivice diagnosis 10.3.7 Power Supply Over or under voltage fault Outdoor display: LED1 flash 6 times The power supply is over voltage Method of An abnormal voltage rise or fall is detected by checking the specified voltage detection circuit. Malfunction Detection An voltage signal is fed from the voltage detection circuit to the microcomputer Malfunction...
  • Page 43 Seivice diagnosis 10.3.8 Overheat Protection For Discharge Temperature Outdoor display: LED1 flash 8 times Method of The Discharge temperature control is checked with the temperature being detected Malfunction by the Discharge pipe thermistor Detection Malfunction when the compressor discharge temperature is above 110 Decision Conditions ■...
  • Page 44 Seivice diagnosis 10.3.9 The communication fault between indoor and outdoor Indoor display Outdoor display LED1 flash 15 times Method of Communication is detected by checking the indoor PCB and the outdoor PCB Malfunction Detection ■ The outdoor PCB broken leads to communication fault Malfunction ■...
  • Page 45 Seivice diagnosis 10.3.10 Loss of synchronism detection Inverter side current detection is abnormal Outdoor Display LED1 flash 18 times LED1 flash 19 times Method of The position of the compressor rotor can not detected normally Malfunction Detection Malfunction when the wiring of compressor is wrong or the connection is poor; Decision or the compressor is damaged Conditions...
  • Page 46 Seivice diagnosis 10.3.11 High work-intense protection Outdoor display LED1 flash 21 times Method of High work-intense control is activated in the heating mode if the temperature Malfunction being sensed by the heat exchanger thermistor exceeds the limit. Detection Malfunction Activated when the temperature being sensed by the heat exchanger Decision rises above 63 twice in 30 minutes.

  • Page 47: Performance And Cerves Diagrams

    Capacity 11 Perforance and curves diagrams 11.1 Cooling capacity temperature curves AS26NC1HRA 1U26QE3ERA performance curves cooling value-temerature table indoor temp. DB/WB 1934 2007 1953 1874 1808 2176 2423 2342 2282 2145 18/12 2013 2056 2010 2003 1907 2338 2557 2511 2354 2215 21/15...
  • Page 48 Capacity 11.2 Power consumption temperature curves AS26NC1HRA 1U26QE3ERA performance curves power consumption value-temp.table indoor temp. DB/WB 18/12 21/15 24/16 27/19 30/22 32/23 power consumption-temp.curves 1100 1000 indoor tempe.(DB/WB) Domestic Air Conditioner...
  • Page 49 capacity 11.3 Heating capacity temperature curves AS26NC1HRA 1U26QE3ERA performance curves heating capacity and indoor/outdoor temp.table indoor temp.(humidity 46%) outdoor temp. DB/WB 1327 1204 1180 1475 1344 1327 1593 1484 1416 2448 2238 2064 -7/-8 3008 2727 2535 3317 2996 2717 3130 2890 2460...
  • Page 50 Capacity 11.4 Power consumption value -temperature curves AS26NC1HRA 1U26QE3ERA performance curves power consumption value-temp.table indoor temp.(humidity 46%) outdoor temp. DB/WB -7/-8 1075 1046 12/11 18/16 24/20 heating capacity and indoor/outdoor temp.curves · 1200 1000 -7/-8 12/11 18/16 24/20 outdoor tempe.(DB/WB) Domestic air conditioner...
  • Page 51 capacity 11.5 Cooling discharge pressure curves AS26NC1HRA 1U26QE3ERA performance curves cooling discharge pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 21/15 27/19 32/23 1996 2082 2152 2047 2139 2210 2103 2168 2288 2135 2196 2308 2190 2282 2397 2406 2538 2632 2639 2738...
  • Page 52 Capacity 11.6 Cooling suction pressure curves AS26NC1HRA 1U26QE3ERA performance curves cooling suction pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 21/15 27/19 32/23 1005 1015 1026 1047 1001 1151 1131 1324 Domestic air conditioner...
  • Page 53 Capacity 11.7 Heating discharge pressure curves AS26NC1HRA 1U26QE3ERA performance curves Heating discharge pressure.table indoor temp. outdoor temp DB/WB 2117 2246 2339 2253 2374 2455 2329 2470 2596 2505 2663 2772 2890 3048 3136 -7/-8 3159 3304 3446 3006 3208 3309 2988 3112 3232...
  • Page 54 Capacity 11.8 Heating suction pressure curves AS26NC1HRA 1U26QE3ERA performance curves heating discharge pressure.table indoor temp. outdoor temp DB/WB -7/-8 12/11 1033 1069 1087 18/16 1219 1255 1273 24/20 1400 1300 1200 1100 1000 -10 -7/-8 7/6 12/11 18/16 24/20 Outdoor Temp. Domestic air conditioner...
  • Page 55 Capacity 11 Perforance and curves diagrams 11.1 Cooling capacity temperature curves AS35NC1HRA 1U35QE3ERA performance curves cooling value-temerature table indoor temp. DB/WB 18/12 2594 2627 2596 2550 2379 3006 3305 3180 3039 2843 21/15 2704 2789 2773 2662 2552 3129 3371 3361 3264 3020...
  • Page 56 Capacity 11.2 Power consumption temperature curves AS35NC1HRA 1U35QE3ERA performance curves power consumption value-temp.table indoor temp. DB/WB 18/12 1020 1092 1073 1129 21/15 1148 1230 24/16 27/19 1000 1181 1263 30/22 1000 1111 1232 1330 1135 1315 1372 32/23 power consumption-temp.curves 1500 1300 1100...
  • Page 57 capacity 11.3 Heating capacity temperature curves AS35NC1HRA 1U35QE3ERA performance curves heating capacity and indoor/outdoor temp.table indoor temp.(humidity 46%) outdoor temp. DB/WB 1896 1720 1685 2106 1920 1896 2275 2120 2022 3497 3197 2949 -7/-8 4297 3896 3621 4739 4279 3881 4471 4129 3514...
  • Page 58 Capacity 11.4 Power consumption value -temperature curves AS35NC1HRA 1U35QE3ERA performance curves power consumption value-temp.table outdoor temp. indoor temp.(humidity 46%) DB/WB 1051 1067 1173 1060 1178 1296 1163 1292 1421 -7/-8 1257 1396 1536 1223 1359 1494 1079 1187 12/11 18/16 24/20 heating capacity and indoor/outdoor temp.curves ·...
  • Page 59 capacity 11.5 Cooling discharge pressure curves AS35NC1HRA 1U35QE3ERA performance curves cooling discharge pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 21/15 27/19 32/23 2007 2082 2187 2029 2139 2224 2114 2168 2255 2115 2196 2318 2161 2282 2398 2422 2538 2679 2639 2738...
  • Page 60 Capacity 11.6 Cooling suction pressure curves AS35NC1HRA 1U35QE3ERA performance curves cooling suction pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 21/15 27/19 32/23 1005 1015 1026 1047 1001 1151 1131 1324 Domestic air conditioner...
  • Page 61 Capacity 11.7 Heating discharge pressure curves AS35NC1HRA 1U35QE3ERA performance curves Heating discharge pressure.table indoor temp. outdoor temp DB/WB 2165 2246 2305 2269 2374 2489 2345 2470 2528 2530 2663 2769 2925 3048 3172 -7/-8 3132 3304 3442 3072 3208 3344 2976 3112 3274...
  • Page 62 Capacity 11.8 Heating suction pressure curves AS35NC1HRA 1U35QE3ERA performance curves heating discharge pressure.table indoor temp. outdoor temp DB/WB -7/-8 12/11 1033 1069 1087 18/16 1219 1255 1273 24/20 1400 1300 1200 1100 1000 -10 -7/-8 7/6 12/11 18/16 24/20 Outdoor Temp. Domestic air conditioner...

  • Page 63: Circuit Diagrams

    Circuit diagrams 12 Circuit diagrams 12.1 Outdoor unit control board Circuit Diagrams Domestic air conditioner...
  • Page 64 Circuit diagrams Domestic air conditioner...
  • Page 65 Circuit diagrams 12.2 Module board Circuit Diagram Domestic air conditioner...
  • Page 66 Circuit diagrams Sincere Forever Haier Group Edited by : Zou Na Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China_ Signed by : Shen weijie Http //www.haier.com He shiquan Approved by: Domestic air conditioner...
  • Page 67 2016 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...
  • Page 68 Removal Procedure 1.Removal of Outdoor Panel Lossen the fixing screws and lift the top panel. Remove the handle. Domestic Air Conditioner...
  • Page 69 Removal Procedure 3 Loosen the screws of the panel and remove the panel. Domestic Air Conditioner...
  • Page 70 Removal Procedure 2.Removal of Electrical Box Domestic Air Conditioner...
  • Page 71 Removal Procedure 3.Removal of Fan and Fan Motor Loosen the fixing screws. Remove the fan and motor. Domestic Air Conditioner...
  • Page 72 Removal Procedure 4.Removal of Fan Motor Bracket and Partition Loosen the fixing screws and lift the fan motor bracket. Remove the partition Domestic Air Conditioner...
  • Page 73 Removal Procedure 5.Removal of Compressor and Heat Exchanger Remove the valve plate. Remove the valves and the compressor. Loosen the screws and remove the heat exchanger. Domestic Air Conditioner...

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