Haier Z/N-Series Service Manual
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Haier Z/N-Series Service Manual

Wall mounted type dc inverter free match
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SERVICE MANAUL
Wall Mounted Type
DC Inverter FREE MATCH Z/N-Series
Model No.
2U18FE2ERA
WARNING
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
2013 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group
Version V1
Date 2013-09-10

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  • Page 1 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2013 (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.

  • Page 3: Introduction

    Introduction 1 Introduction 1.1 Model name explanation Apply toT1; 220~240V50HZ/1ph DC inverter Heat pump & R410A refrigerant Version number Europe Platform of outdoor units: F (F platform) Nominal cooling capacity (18000BTU/h) Type of outdoor unit : U (normal type) The maximum combination number Domestic air conditioner...
  • 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 NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT 9+12 12+12 n i l n i l 5.05 Capacity rated Btu/h 17240 17750 17400 19790 Power Consumption(Rated) 2150 2350 2150 2350 1821 1821 Annual energy consumption ³ 12 single:1.6 09 single:1.2 TECHNICAL SPECIFICATIONS-UNIT...

  • Page 10: Sensors List

    Specification TECHNICAL SPECIFICATIONS-OTHERS Refrigerant type R410a Refrigerant charge Refrigerant Maximum allowable distance 35(double) 20(single) circuit between indoor an outdoor Maximum allowable level difference Refrigerant control liquid Φ6.35 Piping connections Φ9.52 (external diameter) drain Φ16 Heat insulation type Both liquid and Gas pipes Max.

  • Page 11: Piping Diagrams

    Pinping diagrams 4 Pinping diagrams Domestic air conditioner...

  • Page 12: Operation Range

    Operation range 5 Operation range Domestic air conditioner...

  • Page 13: Printed Circuit Board Connector Wiring Diagram

    Wiring diagram 6. Printed Circuit Board Connector Wiring Diagram Connectors PCB (1) Control PCB Connector for power N and L Connector for ground Connector for CN2,CN1 on the module board CN10 CN11 Connector for four way valve coil CN15 Connector for electric expansion valves CN16 CN17 CN18...
  • Page 14 Wiring diagram PCB (2) Module PCB P (CN8) Connector for CN27,CN25 on the control board N (CN9) LO (CN4) Connector for reactor LI (CN3) AC_L(CN1) Connector for CN10,CN9 on the control board AC_N(CN2) CN5(U) Connector for the compressor CN6(V) CN7(W) CN10 Connector for the DC power 5V and 15V form the control PCB Connector for communicate between the control board and the module...
  • Page 15 Wiring diagram PCB(1) CN36 CN10 CN25 CN23 CN28 CN24 Domestic air conditioner...
  • Page 16 Wiring diagram CN11 CN10 PCB(2) Domestic air conditioner...
  • Page 17 Wiring diagram Domestic air conditioner...

  • Page 18: Functions And Control

    Functions and control 7.Functions and Control 7.1 The control system of outdoor unit 7.1.1 The operation frequency of outdoor unit and its control 7.1.1.1 The operation frequency control of compresso r 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...
  • Page 19 Functions and control Serial Temperature scope Frequency limitation Wh_c<-12 Max_hz8 120 HZ Wh_c<-8 Max_hz7 120HZ Wh_c<-2 Max_h z4 120 HZ Wh_c<5 Max_hz5 120HZ Wh_c<12 Max_hz1 100HZ Wh_c<18 Max_hz2 56 HZ Wh_c> 18 Max_hz6 44 HZ Remarks: the above are the maximum frequency limitations of the complete appliance which are affected by the environment, and they have nothing to do with the ability of the indoor unit.
  • Page 20 Functions and control 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 adjusted according to the degree of superheat SHa.
  • Page 21 Functions and control The compressor stops Fgh_t1 2 Fgh_t1 65 Decreasing the frequency rapidly Fgh_t2 Fgh_t2 2 P Decreasing the frequency slowly Fgh_t3 Fgh_t3 2 Q Prohibiting increasing the frequency Fgh_t4 Fgh_t4 2 R Increasing slowly Fgh_t5 Fgh_t5 2 Normal N Decreasing at the speed of 1HZ/1 second P Decreasing at the speed of 1Hz/10...
  • Page 22 Functions and control 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 <...
  • Page 23 Functions and control When the outdoor environment temperature is higher than 50 ,AC current protection value decreases by 20AD 7.1.5.1 Antifreezing protection of the indoor heat exchanger When refrigerating/heating, prevent freezing. Tpg_indoor is the minimum value of the effective indoor unit (start it and it is in accord with the running state).
  • Page 24 Functions and control light shoud be off for 5 seconds. b) For the units’ malfunctins Annex 1 If there’s malfunction with the units, this will not affect the run of the complete appliance, but this can be displayed by the malfunction light, the light flashing frequency is 0.5HZ, the number of times is according to the malfunction table of the indoor units.
  • Page 25 Functions and control 7.2 Value of thermistor outdoor Unit Ambient Sensor, Defrosting Sensor, Pipe sensor R25 =10K 3% B25 /50 =3700K 3% Temp.( ) Max.(K ) Normal(K ) Min.(K ) Tolerance( ) 165.2170 147.9497 132.3678 -1.94 1.75 155.5754 139.5600 125.0806 -1.93 1.74 146.5609...
  • Page 26 Functions and control 37.4465 35.0144 32.7108 -1.41 1.33 35.6202 33.3552 31.2062 -1.38 1.31 33.8936 31.7844 29.7796 -1.36 1.29 32.2608 30.2968 28.4267 -1.34 1.28 30.7162 28.8875 27.1431 -1.32 1.26 29.2545 27.5519 25.9250 -1.29 1.24 27.8708 26.2858 24.7686 -1.27 1.22 26.5605 25.0851 23.6704 -1.25 1.20...
  • Page 27 Functions and control 5.3916 5.1308 4.8783 -1.37 1.33 5.2001 4.9430 4.6944 -1.41 1.36 5.0163 4.7630 4.5185 -1.45 1.40 4.8400 4.5905 4.3500 -1.49 1.44 4.6708 4.4252 4.1887 -1.53 1.47 4.5083 4.2666 4.0342 -1.57 1.51 4.3524 4.1145 3.8862 -1.61 1.55 4.2026 3.9686 3.7443 -1.65 1.59...
  • Page 28 Functions and control 1.2583 1.1448 1.0405 -3.43 3.15 1.2226 1.1113 1.0092 -3.48 3.19 1.1880 1.0789 0.9789 -3.53 3.24 1.1546 1.0476 0.9497 -3.58 3.28 1.1223 1.0174 0.9215 -3.64 3.33 1.0910 0.9882 0.8942 -3.69 3.37 1.0607 0.9599 0.8679 -3.74 3.42 1.0314 0.9326 0.8424 -3.80 3.46...
  • Page 29 Functions and control 9687.0270 8074.3787 6724.1389 -2.88 2.41 9057.2314 7564.2244 6311.6413 -2.87 2.41 8472.2852 7089.4741 5927.0206 -2.86 2.40 7928.7217 6647.4547 5568.2222 -2.84 2.39 7423.3626 6235.7109 5233.3554 -2.83 2.39 6953.2930 5851.9864 4920.6791 -2.82 2.38 6515.8375 5494.2064 4628.5894 -2.80 2.37 6108.5393 5160.4621 4355.6078 -2.79 2.37...
  • Page 30 Functions and control 691.3524 622.3161 559.6694 -2.16 1.96 656.8979 592.1831 533.3634 -2.14 1.95 624.3328 563.6604 508.4261 -2.12 1.93 593.5446 536.6540 484.7796 -2.10 1.92 564.4275 511.0760 462.3510 -2.09 1.90 536.9865 486.9352 441.1516 -2.07 1.89 511.0105 464.0500 421.0258 -2.05 1.87 486.4151 442.3499 401.9146 -2.03 1.86...
  • Page 31 Functions and control 89.0211 85.0614 81.2048 -1.18 1.15 85.4976 81.7908 78.1744 -1.15 1.12 82.1303 78.6615 75.2715 -1.13 1.10 78.9116 75.6668 72.4902 -1.10 1.08 75.8343 72.8004 69.8249 -1.08 1.06 72.8916 70.0561 67.2703 -1.05 1.03 70.0770 67.4283 64.8213 -1.03 1.01 67.3844 64.9115 62.4731 -1.00 0.99...
  • Page 32 Functions and control 18.5157 17.4166 16.3680 -2.02 1.93 17.9590 16.8769 15.8458 -2.06 1.96 17.4214 16.3564 15.3427 -2.10 2.00 16.9023 15.8542 14.8577 -2.15 2.04 16.4010 15.3696 14.3902 -2.19 2.08 15.9167 14.9020 13.9394 -2.23 2.12 15.4489 14.4506 13.5047 -2.27 2.16 14.9968 14.0149 13.0855 -2.32 2.19...

  • Page 33: Dimensional Drawings

    Dimensinal drawings 8.Dimensional drawings 9.Center of gravity Outdoor unit Domestic air conditioner...

  • Page 34: Installations

    Installations 10.Installations IMPORTANT INFORMATION REGA- EUROPEAN REGULATIONS RDING THE REFRIGERANT USED CONFORMITY FOR THE MODELS Contains fluorinated greenhouse gases covered by the Kyoto Protocol All the products are in conformity with the following R410A European provision: - Low Voltage Directive 73/23/EEC - Low Voltage Directive 2006/95/EC -Electomagnetic CompatibilitY 89/336/EEC -Electomagnetic CompatibilitY 2004/108/EC...
  • Page 35 Installations Indoor/Outdoor Unit Installation Drawings The models adopt HFC free refrigerant R410A. For installation of the indoor units,refer to the installation manual which was provided with the units. (The diagram shows a wall-mounted indoor unit.) Attention must be paid to the rising up of drain hose more than 15 cm Optional parts for piping...
  • Page 36 Installations WARNING CAUTION Domestic air conditioner...
  • Page 37 Installations Domestic air conditioner...
  • Page 38 Installations Domestic air conditioner...
  • Page 39 Installations Domestic air conditioner...
  • Page 40 Installations Domestic air conditioner...
  • Page 41 Installations Domestic air conditioner...
  • Page 42 Installations Domestic air conditioner...
  • Page 43 Installations Air outlet Wind direction Cushion rubber 4.Installation dimension(Unit:mm) Model 106.5 113.5 319.5 Domestic air conditioner...
  • Page 44 Installations 14K 18K Connection of pipes To bend a pipe, give the roundness as large as possible not to crush the pipe , and the bending radius should be 30 to 40 mm or longer. Connecting the pipe of gas side first makes working easier. The connection pipe is specialized for R410A.
  • Page 45 Installations Pressurize for over 3 minutes at 4.2MPa After above Domestic air conditioner...
  • Page 46 Installations 2-way valve 2-way valve 3-way valve 3-way valve 2-way valve 2-way valve 3-way valve 3-way valve Each indoor unit musts to be vacuumed , according to the above steps. If the refrigerant of the air conditioner leaks, it is necessary to discharge all the refrigerant. Vacuumize first, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.
  • Page 47 Installations 14K 18K T 25A/250V. The type of connecting wire is H07RN-F. Outdoor unit A Outdoor unit A To Indoor unit A To Indoor unit A Model 14K 18K Outdoor unit B Outdoor unit B DOUBLE Connecting wiring 4G0.75mm To Indoor unit B To Indoor unit B DOUBLE Power cable...
  • Page 48 Installations Outdoor Unit When the The wiring of compressor is wrong or Suction temperature sensor failure the connection is poor Check if there is leakage in the unit. Lack of refrigerant Domestic air conditioner...

  • Page 49: Service Diagnosis

    Service diagnosis 11 Service Diagnosis 11.1 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.
  • Page 50 Service diagnosis 11.3 Problem Symptoms and Measures Symptom Check Item Details of Measure Check the power supply. Check to make sure that the rated voltage is supplied. None of the units operates Check the indoor PCB Check to make sure that the indoor PCB is broken Operation A power failure of 2 to 10 cycles can stop air conditioner Check the power supply.
  • Page 51 Service diagnosis .4 Error Codes and Description indoor display Code indication Indoor Reference Outdoor fault description displaying Page (LED1 flash panel code times) indication Indoor Communication fault between indoor and Page Outdoor outdoor units Room temperature sensor failure Page Indoor Malfunction Heat-exchange sensor failure Page Indoor fan motor malfunction...
  • Page 52 Service diagnosis 11.4.1 Thermistor or Related Abnormality Indoor Display E1: Room temperature sensor failure E2: Heat-exchange sensor failure Outdoor display LED1 flash 10 times Defrost temperature sensor failure LED1 flash 11 times Suction temperature sensor failure LED1 flash 12 times Ambient temperature sensor failure LED1 flash 13 times Discharge temperature sensor failure Method of The temperatures detected by the thermistors are used to determine thermistor errors...
  • Page 53 Service diagnosis 11.4.2 EEPROM abnormal Indoor Display E4: Indoor EEPROM error Indoor display F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times Method of The Data 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...
  • Page 54 Service diagnosis 11.4.3 Indoor DC fan motor fault Indoor display Method of DC fan motor is detected by checking the fan running condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed...
  • Page 55 Service diagnosis 11.4.4 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 Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed...
  • Page 56 Service diagnosis 11.4.5 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 Malfunction ■ The system leads to IPM protection due to over current Decision ■...
  • Page 57 Service diagnosis 11.4.6 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 Supposed...
  • Page 58 Service diagnosis 11.4.7 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 Malfunction ■ The outdoor PCB broken leads to communication fault Decision ■...
  • Page 59 Service diagnosis 11.4.8 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 Malfunction An voltage signal is fed from the voltage detection circuit to the microcomputer...
  • Page 60 Service diagnosis 11.4.9 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 Supposed...
  • Page 61 Service diagnosis 11.4.10 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 Malfunction ■ The outdoor PCB broken leads to communication fault. Decision ■...
  • Page 62 Service diagnosis Check the indoor mainboard. Measure the voltage between Jumpers 3 and 4 of IC1 on the indoor mainboard with a multimeter. Test the outdoor power supply (230VAC and +310VDC) with a multimeter. If the voltage is of a constant value of 0V DCto5V DC If 230VAC is available but 310DC not, the power module is damaged, replace it...
  • Page 63 Service diagnosis 11.4.11 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 64 Service diagnosis 11.4.12 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 65 twices in 30 minutes.

  • Page 65: Performance And Cerves Diagrams

    Performance curves diagram Performance Curves Diagram 12.1 cooling capacity-temp. curves (9+12)performancecurves cooling value-temerature table outdoor tem p.(hum idity 46% ) indoor tem p. D B /W B 18/12 2714 2686 4498 4030 3587 3499 3233 2400 2771 2743 4592 4123 3809 3587 3321...
  • Page 66 Performance curves diagram cooling capacity-temp. curves (12+12)performancecurves cooling value-temerature table outdoor tem p.(hum idity 46% ) indoor tem p. D B /W B 3121 3089 4142 3710 4339 4232 3911 2750 18/12 18/14 3187 3154 4228 3797 4607 4339 4018 2829 20/15 3253...
  • Page 67 Performance curves diagram 12.2 heating capacity-temp.curves (9+12)performancecurves heating capacity and indoor/outdoor temp.table outdoor tem p. indoor tem p.(hum idity 46% ) D B /W B heating capacity and indoor/outdoor temp.curves Domestic air conditioner...
  • Page 68 Performance curves diagram heating capacity-temp.curves (12+12)performancecurves heating capacity and indoor/outdoor temp.table outdoor tem p. indoor tem p.(hum idity 46% ) D B /W B heating capacity and indoor/outdoor temp.curves Domestic air conditioner...
  • Page 69 Performance curves diagram 12.3 Cooling power consumption-temp.curves (9+12)performancecurves power consumption value-temp.table outdoor tem p.(hum idity 46% ) indoor tem p. D B /W B 18/12 1235 1287 1323 1412 1331 18/14 1257 1309 1345 1441 1478 1279 1331 1367 1463 1514 20/15 1309...
  • Page 70 Performance curves diagram Coolingpower consumption-temp.curves (12+12)performancecurves power consumption value-temp.table indoor tem p. outdoor tem p.(hum idity 46% ) D B /W B 18/12 1494 1594 1502 1519 1627 1668 18/14 1544 1652 1710 20/15 22/16 1001 1569 1668 1743 1023 1619 1710 1793...
  • Page 71 Performance curves diagram 12.4 heating power consumption-temp.curves (9+12)performancecurves power consumption value-temp.table in d o o r te m p .(h u m id ity 4 6 % ) o u td o o r te m p . D B /W B -1 5 9 4 1 1 0 1 3...
  • Page 72 Performance curves diagram heating power consumption-temp.curves (12+12)performancecurves power consumption value-temp.table o u td o o r te m p . in d o o r te m p .(h u m id ity 4 6 % ) D B /W B -1 5 1 3 8 8 1 4 9 5...
  • Page 73 Performance curves diagram 12.5 Cooling discharge pressure (9+12)performancecurves cooling discharge pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B 2465 2550 2635 3298 3332 3400 3298 3366 3400 3332 3400 3502 3366 3536 3536 2600 2600 2700...
  • Page 74 Performance curves diagram Cooling discharge pressure (12+12)performancecurves cooling discharge pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B 1562 1616 1670 2331 2355 2403 2331 2379 2403 3248 3314 3414 3281 3447 3447 2154 2154 2237 C O O LIN G D IS C H A R G E P R E S S U R E...
  • Page 75 Performance curves diagram 12.6 cooling suction pressure curves (9+12)performancecurves cooling suction pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B Domestic air conditioner...
  • Page 76 Performance curves diagram cooling suction pressure curves ( 12+12) performance curves cooling suction pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B Domestic air conditioner...
  • Page 77 Performance curves diagram 12.7 heating discharge pressure curves (9+12)performancecurves Heating discharge pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B 2941 3069 3165 3005 3101 3197 3053 3133 3229 3101 3165 3261 3165 3197 3293 3062 3154...
  • Page 78 Performance curves diagram heating discharge pressure curves (12+12)performancecurves Heating discharge pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B 3003 3133 3231 3068 3166 3264 3117 3198 3296 3166 3231 3329 3231 3264 3362 2957 3046 3090...
  • Page 79 Performance curves diagram 12.8 heating suction pressure curves (9+12)performancecurves heating discharge pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B O utdoor T em p Domestic air conditioner...
  • Page 80 Performance curves diagram heating suction pressure curves (12+12)performancecurves heating discharge pressure.table outdoor tem p. indoor tem p. (hum idity 46% ) D B /W B 1000 O utdoor T em p Domestic air conditioner...

  • Page 81: Sound Level

    Sound level 13 Sound level Sound presure level 230V,50Hz sound power level Measuring location Model Cooling/heating (cooling/heating) Location of microphone 2U18FE2ERA cooling heating 1700 3400 6800 1700 3400 6800 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 NC-20 NC-20 approximate approximate...

  • Page 82: Circuit Diagrams

    Circuit diagrams 14 Circuit diagrams 14.1 Outdoor unit control board Circuit Diagrams CN10 AC-LOUT AC-NOUT AC-NOUT AC-LOUT CN14 CN13 COM COM L FUSE1 PT C1 2U/450V T25A250VA C 400N/PSB400 AC-L 100/1W S14K350 225/275V 225/275V 225/275V 8MH/20A 8MH/20A 103/275V +12V CN16 AC-N 472/250V/275V AC-L...
  • Page 83 Circuit diagrams 14.2 Module board Circuit Diagram 5.2MH/15A D207 FFA30U60DN PS21965-AT C405 C404 C406 AC-L SGH40N60UF 104/275V 474/275V 680U/400V*2 104/275V R215 D25BX60B 0.015/5W 0.015/5W AC-N R214 R225 20K 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 D206 C023 R222...
  • Page 84 Sincere Forever Haier Group Edited by : Wang weipeng Haier Industrial Park, No.1, Haier Road Yang xiaodong 266101, Qingdao, China_ Signed by : He shiquan Http //www.haier.com Approved by: Wu Hongjin Domestic air conditioner...

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