Heiko T Series Service Manual
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Heiko T Series Service Manual

Wall mounted type
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SERVICE MANUAL
Wall Mounted Type
T-Series
Model No.
JZ050-C1
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general publi
c.
●
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
Version：V1
Date：2020-02-19

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  • Page 1 SERVICE MANUAL Wall Mounted Type T-Series Model No. JZ050-C1 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general publi ● 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.

  • Page 2: Table Of Contents

    Contents Contents 1.Introduction ..................... 1 2.Specifications ..................7 3.Sensors list ..................... 8 ● 4.Pinping diagrams ..................9 ● 5.Operation range ..................10 6.Printed Circuit Board Connector Wiring Diagram ......... 11 7.Outdoor Functions and Control ............. 14 8.Dimensional drawings ................28 ●...

  • Page 3: Introduction

    Introduction 1.Introduction 1.1 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 4 Introduction 1.2.1 Caution in Repair Warning Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for a repair. Working on the equipment that is connected to a power supply can cause an electrical shook. If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits, do not touch any electrically charged sections of the equipment.
  • 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 stan dards 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 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. ●...
  • Page 8 Introduction Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it.

  • Page 9: Specifications

    Specification 2.Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE ● NOMINAL CAPACITY and NOMINAL INPUT n i l Capacity rated Btu/h 17060 17740 ● Power Consumption(Rated) 1.46 1.40 Annual energy consumption 1610 ³ 2.0*10 ﹣³ TECHNICAL SPECIFICATIONS-UNIT Dimensions H*W*D 800×280×550 ● Packaged H*W*D 954×409×625 Dimensions Weight...

  • Page 10: Sensors List

    Specification c t i TECHNICAL SPECIFICATIONS-OTHERS Refrigerant type Refrigerant charge 0.90 Refrigerant Maximum allowable distance circuit between indoor an outdoor Maximum allowable level difference ● Refrigerant control liquid Φ6.35 Piping connections Φ12.7 (external diameter) drain Φ16 ● Heat insulation type Both liquid and Gas pipes ●...

  • Page 11: Pinping 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 diagrams 6.Printed Circuit Board Connector Wiring Diagram Connectors PCB (1) (Outdoor Control PCB) Connector for power N and ● Connector for ground CN2’ CN3’ Connector for the U, V, W wire of the compressor CN4’ LI (CN7) Connector for reactor LO (CN6) CN21 Connector for fan motor...
  • Page 14 Wiring diagrams PCB (1) CN10 CN21 CN16 CN20 CN18 CN2’ CN3’ CN4’ ● Domestic air conditioner...
  • Page 15 Wiring diagrams Wiring diagrams Domestic air conditioner...

  • Page 16: Outdoor Functions And Control

    Functions and control 7.Outdoor Functions and Control 7.1 Main functions and control specification .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 Minimu m operation frequency Maximum operation frequency ●...
  • Page 17 Functions and control Wh_c<-8 Max_hz2 99HZ/99 HZ Wh_c<-2 Max_hz3 99HZ/95 HZ Wh_c<5 Max_hz4 88HZ/87 HZ Wh_c<10 Max_hz5 70HZ/83 HZ Wh_c<17 Max_hz6 59HZ/64 HZ Wh_c<20 Max_hz7 49HZ/60 HZ Wh_c>＝20 Max_hz8 42HZ/56 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 18 Functions and control When refrigerating, it is needed to satisfy F-MIN-d(compressor’s Min_hz)< F<F-MAX-d(compressor’s Max_hz) When heating, it is needed to satisfy F-MIN-r (compressor’s Min_hz)< F<F-MAX-r (compressor’s Max_hz) PID control : The innital frequency Sn is determined by Pn . We can calculate Hzoutf according to the value of Kp ,Ki ,Kd, Out_gain,Pn.Then , Fn = Sn + Hzoutf.
  • Page 19 Functions and control After outdoor unit is off, the EEV opening keep the current on for 5 s, then open the EEV completely for 2 minutes, then become 120 steps (cooling) or 60 steps (heating). The EEV opening will increase if SH (superheat degree) >0 while decrease if SH<0. Adjust frequency: If |SH|=0, 60s/ 1 step If |SH|≥3,and △SH=0, 10s/ 1 step.
  • Page 20 Functions and control state). TC=indoor coil temp. The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the temperature is higher than 63 ℃ , decrease the rotate speed of the compressor and do the high temperature-preventing protection of the indoor heat exchanger;...
  • Page 21 Functions and control the compressor increases at the prohibited speed. During the starting process of the compressor, if the AC current is greater than 6.5A, the frequency of the compressor increases at the speed of no faster than 0.1HZ/second. Remarks: when the outdoor temperature is high, there’s compensation for AC current protection. (1) When the outdoor environment temperature is higher than 40℃, AC current protection value decreases by 2A/1A(09K/12K).
  • Page 22 Functions and control the compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest frequency. When the temperatures are lower than 68℃ and higher than 62℃, keep the frequency of the compressor. When the temperatures are lower than 62℃, relieve the defrosting temperature protection. 7.2 Value of Thermistor Ambient Sensor, Defrosting Sensor, Pipe sensor ●...
  • Page 23 Functions and control 20.0176 19.0621 18.1358 -1.11 1.07 19.1149 18.2270 17.3646 -1.08 1.05 18.2580 17.4331 16.6305 -1.06 1.03 17.4442 16.6782 15.9315 -1.03 1.01 ● 16.6711 15.9601 15.2657 -1.01 0.99 15.9366 15.2770 14.6315 -0.98 0.96 15.2385 14.6268 14.0271 -0.96 0.94 14.5748 14.0079 13.4510 -0.93...
  • Page 24 Functions and control 4.2026 3.9686 3.7443 -1.65 1.59 4.0588 3.8287 3.6084 -1.70 1.62 3.9206 3.6943 3.4780 -1.74 1.66 3.7878 3.5654 3.3531 -1.78 1.70 3.6601 3.4416 3.2332 -1.82 1.74 ● 3.5374 3.3227 3.1183 -1.87 1.78 3.4195 3.2085 3.0079 -1.91 1.82 3.3060 3.0989 2.9021 -1.95...
  • Page 25 Functions and control 1.0607 0.9599 0.8679 -3.74 3.42 1.0314 0.9326 0.8424 -3.80 3.46 1.0030 0.9061 0.8179 -3.85 3.51 0.9756 0.8806 0.7941 -3.90 3.55 0.9490 0.8558 0.7711 -3.96 3.60 0.9232 0.8319 0.7489 -4.01 3.64 0.8983 0.8088 0.7275 -4.07 3.69 0.8741 0.7863 0.7067 -4.12 3.74...
  • Page 26 Functions and control 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 5729.1413 4848.9963 4100.3708 -2.77 2.36 5375.5683 4558.1906 3861.6201 -2.76 2.35 5045.9114 4286.5535 3638.1938 -2.75 2.34...
  • Page 27 Functions and control 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 1.86 463.1208 421.7683 383.7626 -2.01 1.84 441.0535 402.2430 366.5175 -1.99 1.83...
  • Page 28 Functions and control 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 64.8080 62.5006 60.2211 -0.98 0.96...
  • Page 29 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 30: Dimensional Drawings

    Dimensional drawing 8.Dimensional drawings 9.Center of gravity ● Domestic air conditioner...

  • Page 31: Service Diagnosis

    Service diagnosis 10.Service Diagnosis 10.1 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 32 Service diagnosis 10.3 Error Codes and Description indoor display Code indication Indoor displaying panel code indication Outdoor Reference fault description (LED1 Page Only For 498 and flash 498A display Other times) (Red/Green Time Run display □On ★Flash ■Off ,) Indoor and Communication fault Outdoor...
  • Page 33 Service diagnosis 10.3.1 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 34 Service diagnosis 10.3.2 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 ●...
  • Page 35 Service diagnosis 10.3.3 Indoor AC fan motor malfunction Indoor Display Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation Detection Malfunction when the d etected rotation feedback signal don’t received in 2 minutes ●...
  • Page 36 Service diagnosis 10.3.4 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 37 Service diagnosis Check whether Terminal on the outdoor mainboard is well inserted. it is normal Reinsert the terminals Electrify the machine again and turn it on in The motor and the Cool state with the remote controller. outdoor pcb are check whether the motor could run.
  • Page 38 Service diagnosis 10.3.5 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 39 Service diagnosis 10.3.6 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 ●...
  • Page 40 Service diagnosis 10.3.7 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 ●...
  • Page 41 Service diagnosis 10.3.8 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...
  • Page 42 Service diagnosis 10.3.9 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 43 Service diagnosis 10.3.10 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 44 Service diagnosis If the voltage is a constant value The indoor mainboard is of 0V DC to 5V DC.Or the voltage damaged; replace it with a between Communication line(red ) and N(white new one. line) is not close to18V DC when only indoor charged. Test the outdoor power is Check the cable supply 230VAC with a...
  • Page 45 Service diagnosis 10.3.11 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; ●...
  • Page 46 Service diagnosis 10.3.12 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℃...

  • Page 47: Performance And Cerves Diagrams

    Performance and curves diagrams 11.Performance and curves diagrams 11.1 Cooling capacity-temperature curves cooling value-temerature table outdoor temp. indoor temp. DB/WB 3818 3691 3681 3415 4214 4645 4579 4421 4057 21/15 4031 3877 3776 3629 4506 4847 4705 4605 4356 24/16 4513 4429 4323...
  • Page 48 Performance and curves diagrams 11.2 Cooling power consumption value- temperature curves power consumption value-temp.table outdoor temp. indoor temp. DB/WB 21/15 1235 1210 1157 1222 1489 1680 1848 1268 1224 1184 1259 1548 1777 1874 24/16 1373 1324 1275 1089 1389 1648 1926 2119...
  • Page 49 Performance and curves diagrams 11.3 Cooling discharge pressure curves cooling discharge pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 21/15 27/19 35/24 1903 1973 2073 1948 1999 2126 1975 2025 2137 2014 2104 2245 2171 2341 2474 2375 2499 2662 2567 2683 2850...
  • Page 50 Performance and curves diagrams 11.4 Cooling suction pressure curves cooling suction pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 21/15 27/19 35/24 1085 1247 1074 1171 1360 cooling suction pressure and temp.curves 1550 1350 1150 outdoor temp.(DB/WB) Domestic air conditioner...
  • Page 51 Performance and curves diagrams 11.5 Heating capacity-temperature curves heating capacity and indoor/outdoor temp.table indoor temp.(humidity 46%) outdoor temp. DB/WB -7/-8 12/11 18/16 24/20 heating capacity and indoor/outdoor temp.curves 7000 6000 5000 4000 3000 2000 1000 outdoor temp.(DB/WB) Domestic air conditioner...
  • Page 52 Performance and curves diagrams 11.6 Heating power consumption value- temperature curves power consumption value-temp.table indoor temp.(humidity 46%) outdoor temp. DB/WB -7/-8 12/11 18/16 24/20 power consumption value-temp 2000 1800 1600 · 1400 1200 1000 -7/-8 12/11 18/16 24/20 outdoor temp.(DB/WB) Domestic air conditioner...
  • Page 53 Performance and curves diagrams 11.7 Heating discharge pressure curves heating discharge pressure.table outdoor temp indoor temp. DB/WB -7/-8 12/11 18/16 24/20 heating discharge pressure and temp. curves 4000 3500 3000 2500 2000 1500 1000 -7/-8 12/11 18/16 24/20 outdoor temp.(DB/WB) Domestic air conditioner...
  • Page 54 Performance and curves diagrams 11.8 Heating suction pressure curves heating suction pressure.table indoor temp. outdoor temp DB/WB -7/-8 12/11 18/16 1014 1053 1073 1200 1239 1259 24/20 heating suction pressure and temp. curves 1400 1300 1200 1100 1000 -7/-8 12/11 18/16 24/20 outdoor temp.(DB/WB) Domestic air conditioner...

  • Page 55: Sound Level

    Circuit diagrams 12.Sound level Sound pressure level 230V,50HZ Sound power level Model Measuring location (cooling/heating) Cooling/heating microphone JZ050-C1 ● Domestic air conditioner...

  • Page 56: Circuit Diagrams

    Circuit diagrams 13 Wiring Diagrams 13.1 Outdoor unit control board circuit diagrams R201 LED3 220K-2W CN50 1N4007(1A-1000V) 电电电电 电电电电 RLS4148 四四四 HEAT1 HEAT2 B2P3-VH( 原原 - 立立 ) CN10 CN48 CN49 AC-N DRM1 D250 CN11 D250 D250 DRM2 D250 FUSE1 FUSE2 DRM3 S14K385E2K1(620V)
  • Page 57 Circuit diagrams 13.2Module board circuit diagram Domestic air conditioner...
  • Page 58 Sincere Forever ●...
  • Page 59 Wall Mounted Type DC Inverter FREE MATCH NEW1.5P-Series SERIES:JZ050-C1...
  • Page 60 1.Removal of Outdoor panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Loosen the screws and lift the top panel and remove the handle. Domestic air conditioner...
  • Page 61 Loosen the screws of the panel, pull and remove the front panel. Domestic air conditioner...
  • Page 62 2.Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Remove the fixing screws, Than lift the electrical box. Domestic air conditioner...
  • Page 63 Removal Procedure 3.Removal of Fan and Fan Motor Loosen the fixing screws. Remove the fan and motor. Domestic Air Conditioner...
  • Page 64 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 65 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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