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Haier AS26TB1HRA Service Manual

Wall mounted type dc inverter
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SE RVICE MANUAL

Wall Mounted Type

DC Inverter
Model No.
AS26TB1HRA
AS35TB1HRA
WARNING
This servic e informatio n is designed for experience d repai r technician s only and is not designe d for use by the genera l public.
It doe s not contai n warning s or caution s to advise non-technic al individu als of potentia l dangers in attemptin g to servic e a product.
Product s powered by electricit y shoul d be service d or repaire d only by experience d professiona l technicia ns. Any attemp t to service or
Repai r the produc t or product s deal t with in this servic e infor mation by anyone else could result in seriou s injury or death
2016 (Qing dao Haie r Air Condi tione r Genera l corp . , Ltd)
All right s reser ved. Unauthoriz ed copying and distributio n is a violati on of law
Haier Group
Version V1
Date 2016-10-12

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  Summary of Contents for Haier AS26TB1HRA

  • Page 1: Wall Mounted Type

    SE RVICE MANUAL Wall Mounted Type DC Inverter Model No. AS26TB1HRA AS35TB1HRA WARNING This servic e informatio n is designed for experience d repai r technician s only and is not designe d for use by the genera l public.
  • Page 2: Table Of Contents

    Table of contents Contents 1. Introduction .................... 1 2. Features ....................7 3. Specifications ..................8 4. Sensors list.................... 9 5. Piping diagrams ..................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; 220~240V/50Hz/1Ph DC inverter Indoor units Version number 35T Platform Platform of indoor units: T (T platform) Nominal cooling capacity (2600W) Type of indoor unit: S (wall-mounted) Indoor unit Apply toT1; 220~240V50Hz/1Ph DC inverter Indoor units Version number...
  • 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: Cautions Regarding Products After Repair

    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: Inspection After Repair

    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. If a combustible gas leaks and remains around the unit, it can cause a fire.
  • Page 8: Using Icons

    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: Features

    Features 2.Features Super quiet: Lower noise operation condition A-PAM DC inverter:With adoption of S-TYPE,S-PAM and PHASE control technology to works more stably at low-frequency,and is more energy-saving,mor powerful at high frequency. Long distance air supplying: Heating: When -15 can still heating natural heating maintenance:Heating Holding 10 temperature Confortable sleep The setting temperature and the indoor noise can be adjusted to a more comfortable...
  • Page 10: Specifications

    Specifications 3.Specifications -AS26TB1HRA NOMINAL DISTRIBUTION SYSTEM VOLTAGE Voltage 220~240 NOMINAL CAPACITY and NOMINAL INPUT n i l 2.65(1.2-3.0) 3.3(1.3-3.6) Capacity rated Btu/h 11200(4400-12200) 9000(4100-10200) 0.69 0.78 3.84 4.23 ³ 1.2*10 ³ TECHNICAL SPECIFICATIONS 865 200*290 954*279*355 11.2 White Sound dB(A)
  • Page 11: Sensors List

    Specifications TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) m³/h 900/775/700 Speed(Hi/Mid/Lo) 950/800/70 0 Type ML fin- 7HI-HX tube Heat exchanger c t i Removable/Washable/Mildew Proof Air filter Microcomputer Control Temperature control l l o Note: the data are based on the conditions shown in the table below Conversation formulae n i l Kcal/h= KW×860...
  • Page 12 Specifications 3.Specifications-AS35TB1HRA NOMINAL DISTRIBUTION SYSTEM VOLTAGE 220~240 NOMINAL CAPACITY and NOMINAL INPUT n i l 3.55(1.3-4.0) 4.0(1.4-4.3) Capacity rated Btu/h 13600(4800-14700) 12000(4400-13600) 0.96 1.05 3.81 ³ 1.2*10 ³ TECHNICAL SPECIFICATIONS 865 200*290 954*279*355 11.2 White Sound dB(A) 40/36/32 40/36/32 peessure(Hi/Mid/Lo) Sound level dB(A) Sound power(high)
  • Page 13 Specifications TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) m³/h 1000/850/700 Speed(Hi/Mid/Lo) 1100/950/80 0 Type ML fin- 7HI-HX tube Heat exchanger c t i Removable/Washable/Mildew Proof Air filter Microcomputer Control Temperature control l l o Note: the data are based on the conditions shown in the table below Conversation formulae n i l Kcal/h= KW×860...
  • Page 14: Piping Diagrams

    Piping diagrams 5 Piping diagrams Domestic air conditioner...
  • Page 15: Printed Circuit Board Connector Wiring Diagram

    Printed circuit board connector wiring diagram 6.Printed circuit board connector wiring diagram Connectors PCB(1) (Control PCB) For 09K/12K 1) CN9、CN8 Connector for fan motor and feedback 2) CN6 Connector for heat exchanger thermistor and Room temperature thermistor 3) CN5’ Connector for UP&DOWN STEP motor 4) CN11、CN11’...
  • Page 16 Printed circuit board connector wiring diagram PCB(1) CN51 CN34 CN5’ CN11’ CN11 CN14 CN23 CN21 CON1 CON3 CON2 CN17 Domestic air conditioner...
  • Page 17: Wiring Diagrams

    Printed circuit board connector wiring diagram Wiring diagrams INDOOR UNIT 0010561514 INDOOR UNIT DIAGRAM DC FAN MOTOR GENERATOR C0N3 C0N2 C0N1 FRESH AIR IRED CONTROLLER CN21 UP-DOWN CN5' STEPMOTOR CN11' CN11 CN52 LEFT STEPMOTOR CN23 CN51 ROOM CARD CN34 WIFI 1 2 3 4 SWITCH EMERGENCY...
  • Page 18: Functions And Control

    Functions and control 7.Funcitions and control 7.1 Main functions and control specification 7.1.1 Automatic operation When the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room temperature and then will run according to the determined mode.
  • Page 19: Dehumidifying Mode

    Functions and control 7.1.3 Dehumidifying mode. * temperature control range: 16---30℃ * temperature difference: ±1℃ Control feature: send the dehumidifying signal to the outdoor system. When Tr>Ts+2℃, the compressor will be turned on, the indoor fan will operate at the set speed. When Tr is between the Ts and Ts+2℃, the outdoor system will operate at the high dehumidifying frequency for 10 minutes and then at the low dehumidifying mode for six minutes.
  • Page 20 Functions and control malfunctions when dehumidifying. * Timing system on/off function. * Dormant control functio n. 7.1.4 Heating operation mode. * temperature control range: 16---30℃ * temperature difference: ±1℃ * control feature: the temperature compensation is automatically added and the system will send the heating signals to the outdoor system.
  • Page 21 Functions and control temperature compensation (4℃) will be added. When the status is switched off, the compensation will be erased. 7.1.5 Strength operation The system enters the mode after receiving the ‘strength signal’. Send strength operation signal to the outdoor system. The mode change finishes the strength operation.
  • Page 22 Functions and control 7.1.9 Dormant operation The dormant timing is an eight hours unadaptable one. The timing signs are shown on the V series board. (RC series show the dormant signal, the timing light is lighted on the 6 lights board). 2.1 Under the cooling/ dehumidifying operation, after the setting of the dormant operation, the set temperature will be raised for 1 centigrade after 1 hour’s operation and will be raised for 1 centigrade 1 hour later.
  • Page 23 Functions and control 7.1.11 Low load protection control In order to prevent the frosting of the indoor heat interaction device, the outdoor system will be stopped if the indoor heat interaction temperature is below 1℃ centigrade for 5 minutes, but the fan will continue to operate.
  • Page 24 Functions and control temperature goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the system will automatically resume. 3 .indoor malfunction: Out door malfunction: When the indoor system receives the outdoor malfunction codes, it will store the code into E2 for the malfunction list resume.
  • Page 25: Value Of Thermistor

    Functions and control 7.2 Value of thermistor Room sensor and Pipe Sensor R25℃=10KΩ±2% B25℃/50℃=3700K±2% Temp.((℃)) Max.(KΩ) Normal(KΩ) Min.(KΩ) Tolerance(℃) 165.2170 147.9497 132.3678 -1.94 1.75 155.5754 139.5600 125.0806 -1.93 1.74 146.5609 131.7022 118.2434 -1.91 1.73 138.1285 124.3392 111.8256 -1.89 1.71 130.2371 117.4366 105.7989 -1.87...
  • Page 26 Functions and control 23.0284 21.8398 20.6939 -1.18 1.14 21.9714 20.8659 19.7982 -1.15 1.12 20.9688 19.9409 18.9463 -1.13 1.09 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...
  • Page 27 Functions and control 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 1.85 3.1969 2.9935 2.8005 -2.00 1.89...
  • Page 28 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 29: Dimensional Drawings

    Seivice diagnosis 8.Dimensional drawings unit:mm 200.0 9.Center of gravity unit:mm 200.0 95.0 Domestic air conditioner...
  • Page 30: 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 31: Error Codes And Description Indoor Display

    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 32: Thermistor Or Related Abnormality

    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...
  • Page 33: Eeprom Abnormal

    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...
  • Page 34: Indoor Ac Fan Motor Malfunction

    Service diagnosis 10.3.3 Indoor AC fan motor malfunction Indoor Display ■ □ ★ / E14 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 detected rotation feedback signal don’t received in 2 minutes Decision Conditions...
  • Page 35: Outdoor Dc Fan Motor Fault

    Service diagnosis 10.3.4 Outdoor DC fan motor fault ■ ★ □/ F8 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 36 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 37: Ipm Protection

    Service diagnosis 10.3.5 IPM protection Outdoor display: □ ★ ★/ F1 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 38 Service diagnosis 10.3.6 Over-current of the compressor Outdoor Display: ■ ★ □/ F2 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 39: The Communication Fault Between Ipm And Outdoor Pcb

    Service diagnosis 10.3.7 The communication fault between IPM and outdoor PCB Outdoor display: ■ ★ ■/ F3 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 40: Power Supply Over Or Under Voltage Fault

    Service diagnosis 10.3.8 Power Supply Over or under voltage fault Outdoor display: ■ ★ □/ F19 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 41: Overheat Protection For Discharge Temperature

    Service diagnosis 10.3.9 Overheat Protection For Discharge Temperature Outdoor display: ■ ★ ■ / F4 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℃...
  • Page 42: The Communication Fault Between Indoor And Outdoor

    Service diagnosis 10.3.10 The communication fault between indoor and outdoor Indoor display ■ ■ ★/ E7 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 43 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 44: Loss Of Synchronism Detection

    Service diagnosis 10.3.11 Loss of synchronism detection Inverter side current detection is abnormal Outdoor Display ■ ★ ■\ F11 LED1 flash 18 times ■ ★ ■\F28 LED1 flash 19 times Method of The position of the compressor rotor can not detected normally Malfunction Detection Malfunction...
  • Page 45 Service diagnosis 10.3.12 High work-intense protection Outdoor display ★ ★ ★\E9 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...
  • Page 46: Circuit Diagrams

    Circuit diagrams 11.Circuit Diagrams Domestic air conditioner...
  • Page 47 Circuit diagrams Domestic air conditioner...
  • Page 48 Sincere Forever Haier Group Edited by : Zou Na Haier Industrial Park, No.1, Haier Road Dong Xiaoli 266101, Qingdao, China_ Signed by : Zhang Junyan Http //www.haier.com Approved by: He Shiquan Domestic air conditioner...

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As35tb1hra