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Haier D Series Service Manual

Wall mounted type
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SE RVICE MANUAL
AC1901S003V1.1
Wall Mounted Type
D-Series
Model No.
AS50S2SD1FA-CL
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
(Qing dao Haie r Air Condi tioner 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 20190325

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  Summary of Contents for Haier D Series

  • Page 1 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 (Qing dao Haie r Air Condi tioner 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 20190325...
  • 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. PCB diagram..................11 7. Functions and control ................8. Dimensional drawings ................9. Center of gravity .................. 10.
  • Page 3: Introduction

    Introduction 1. Introduction 1.1 Model name explanation Apply toT1; 220~240V/50Hz/1Ph DC inverter Heat pump Version number 50D Platform Platform of indoor units: D (D platform) Nominal cooling capacity ( 5300W ) Type of indoor unit: S (wall-mounted) Indoor unit 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 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 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: The furthest air distance is 12 meters. Heating: When -15 can still heating natural heating maintenance:Heating Holding 10...
  • Page 10: Specifications

    Specifications 3.Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE Voltage NOMINAL CAPACITY and NOMINAL INPUT n i l 5000(1300-5500) 5800(1700-7000) Capacity rated Btu/h 17060(4430-18770) 19790(5800-23890) 1470 1550 ³ 2.0*10 ³ TECHNICAL SPECIFICATIONS 1113*230*344 1184*296*412 15.5 20.0 White Sound dB(A) 41/37/33/28 pressure(Hi/Mid/Lo) Sound level dB(A) Sound power(high) Domestic air conditioner...
  • Page 11: Sensors List

    Specifications TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) m³/h 1000/900/800 Speed(Hi/Mid/Lo) 1100/1000/900 Type ML fin- 7HI-HX tube Heat exchanger c t i Removable/Washable/Mildew Proof Air filter Microcomputer Control Temperature control l l o 0010402886W Note: the data are based on the conditions shown in the table below Conversation formulae n i l Kcal/h= KW×860...
  • Page 12: Piping Diagrams

    Piping diagrams 5 Piping diagrams Filter Filter Domestic air conditioner...
  • Page 13: Pcb Diagram

    Printed circuit board connector wiring diagram 6.PCB diagram Connectors PCB(1) (Control PCB) series PCB connector Connect with load CN21‘ Connector for power N and L CN52’ CN27 Connector for ground CN23‘ Connector for communication between indoor and outdoor unit Connector for fan motor CON1 Connector for fresh air CON2...
  • Page 14 Printed circuit board connector wiring diagram CN34 CN51 CN7′ CN14 CN11 CN57 CN12 CN13 CN36 CN23‘ CN21’ CON1 CON3 CN27 CN52‘ CON2 Domestic air conditioner...
  • Page 15 Printed circuit board connector wiring diagram Domestic air conditioner...
  • Page 16: 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 17 Functions and control 7.1.3 Dry mode. * temperature control range: 16---30 * temperature difference: 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 18 Functions and control *Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or dehumidifying). When the compressor works continuously for 6 minutes and the temperature of the indoor coils has been below 1 for 10 seconds, the compressor will be stopped and the malfunction will be recorded in the malfunction list.
  • Page 19 Functions and control * Residue heat sending. The indoor fan will send the residue heat at a low speed for 20 seconds. 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 THHOT0. * Defrosting.
  • Page 20 Functions and control 7.1.7 Timing You can set 24 hours’ on/off timing accordingly. After the setting, the timing indicator 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.
  • Page 21 Functions and control emergency switch function 7.1.9 Press the urgency button the buzzer will ring. The system will enter the automatic mode if you don’t press the button for more than 5 seconds. Under the system off mode, if you press the urgency key for 5 to 10 seconds, the system will start the test operation.
  • Page 22 Functions and control 7.1.11 Light sensor Entry conditions: after light function turn on, consecutive five minutes detected indoor light intensity is less than the set value, the follow/Evade function automatically turn on, if within 20 minutes of continuous no human activity, the light intensity has been less than the set value, the unit will be automatically enters the Smart sleep mode, according to sleep curve operation Exit conditions: 20 minutes continuously detects the room light intensity is greater than the set value or smart sleep mode eight hours or turn off the light sensor functions.
  • Page 23 Functions and control 7.2 Value of thermistor Room sensor and Pipe Sensor R25 =10K B25 /50 =3700K 2% Temp.(( )) Max.(KŸ) Normal(KŸ) Min.(KŸ) 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...
  • Page 24 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 25 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 26 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 27: Dimensional Drawings

    Seivice diagnosis 8.Dimensional drawings unit:mm 1113 n 60mm 138mm 9.Center of gravity unit:mm 1113 Domestic air conditioner...
  • Page 28: 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 29 Service diagnosis 10.2 Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the remoter is ok,the Check the remote control remote control display is not weak None of the units Check to make sure that the rated voltage is Check the power supply.
  • Page 30 Connector Wiring Diagram 10.3 Error Codes and Description indoor display Code indication Indoor Outdoor fault description displaying panel (LED1 flash code indication times) Indoor and Communication fault between indoor and Outdoor outdoor units Room temperature sensor failure Indoor Heat-exchange sensor failure Malfunction Indoor EEPROM error Indoor fan motor malfunction...
  • Page 31                                                              ...
  • Page 32                                                              ...
  • Page 33                                                               ...
  • Page 34                                                               ...
  • Page 35                                                               ...
  • Page 36                                                               ...
  • Page 37                                                               ...
  • Page 38                                                               ...
  • Page 39                                                               ...
  • Page 40                                                               ...
  • Page 41                                                               ...
  • Page 42                                                               ...
  • Page 43: Circuit Diagrams

    Circuit diagrams 11 Circuit Diagrams 100Ω -1206 +15V D206 100Ω -1206 R 011 15V-100mA ZD003 10Ω -2512 FR 106(1A-600V-500ns) R 202 R 203 1N4742A( 12V-1W ) C 013 C 014 R 206 4. 7nF-250VAC 270Ω -2W R 004 4. 7nF-250VAC 2.
  • Page 44 Circuit diagrams 1-32-R C K 1-31-SE R 1-30-D IG H 1-29-D IG _M O D E 1-19-D IG L Domestic air conditioner...
  • Page 45 Wall Mounted Type DC Inverter FREE MATCH D-Series SERIES: AS50S2SD1FA-CL...
  • Page 46 Remove of front panel Indoor unit Step Procedure Points 1.Features 2.Remove the front panel Release the three pieces of tape Domestic air conditioner...
  • Page 47 Step Procedure Points Hold the bottom side of front panel and lift it Loosen two 3*8 screw and release the display module and remove the front panel Domestic air conditioner...
  • Page 48 Remove the air filters and horizontal flap Step Procedure Points Lift the right and left air filter upwards slightly and then pull it out downwards Remove the horizontal blade Release the horizontal blade slightly and remove it. Domestic air conditioner...
  • Page 49 Remove the casing Step Procedure Points Loosen one screw and remove the cover Loosen one screw and remove the cover Release three connect terminals at marked area Domestic air conditioner...
  • Page 50 Lift up the three screw covers and then loosen the marked seven screws Release the marked hooks (4EA) on the ■When assembling, top side of unit and install the front then pull the front grille grille horizontally out horizontally and so as not to stuff remove it the flap inside.
  • Page 51 Release stepping motor (2type) Step Procedure Points Loosen the stepping motor screws (4EA) and then release the stepping motor Removal of Control Box Step Procedure Points Loosen the control Box screws (2EA) And then pull it. Domestic air conditioner...
  • Page 52 Removal of Heat Exchanger Loosen the marked screws(2EA) Pull mounting plate and heat exchanger bracket and then release them. Release the fixture plate from the base frame hook and rotate it Domestic air conditioner...
  • Page 53 Step Procedure Points Loosen the marked screws (6EA) and remove the heat exchanger Remove Fan rotor and Fan Loosen the marked screws(6EA) and release the cover and bracket of fan motor Domestic air conditioner...
  • Page 54 Step Procedure Points Loosen the marked screw (1EA) and remove fan motor and of mechanism modules of front panel Removal Step Procedure Points Loosen the marked screws(4EA) and remove the mechanism modules of front panel Domestic air conditioner...
  • Page 55 of sensor modules Removal Step Procedure Points Release the hook of cover and remove the module Domestic air conditioner...

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As50s2sd1fa-cl