Haier AS12NB1HRA-White Service Manual
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Haier AS12NB1HRA-White Service Manual

Wall mounted type dc inverter super match
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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 MANAUL
DC Inverter SUPER MATCH
Model No.
WARNING
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group

Wall Mounted Type

AS12NB1HRA
HSU12VHGL-G
2014 (Qingdao Haier Air Conditioner General corp. , Ltd)
Version V1
-White
Date 2014-05-25

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Summary of Contents for Haier AS12NB1HRA-White

  • Page 1: Wall Mounted Type

    Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2014 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...

  • Page 2: Table Of Contents

    Table fo 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. System configuration................9. Dimensional drawings ................10.

  • Page 3: Introduction

    Introduction 1 Introduction 1.1 Model name explanation Apply toT1; 208~230V60HZ/1ph DC inverter Indoor units Version number 35N Platform Platform of indoor units: N (N platform) Nominal cooling capacity (12000BTU/h) Type of indoor unit: S (wall-mounted) Indoor unit Domestic air conditioner...

  • Page 4: Safety Cautions

    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

    Specifications 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: 5 F Heating: When 5 °F can still heating natural 50°F heating maintenance:Heating Holding 50°F temperature Confortable sleep The setting temperature and the indoor noise can be adjusted to a more comfortable...

  • Page 10: Specifications

    Specifications 3 Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT n i l Capacity rated 13500 12000 4773 4602 37.5 Btu/ Btu Btu/ 3334091 40.6 *10 inch ³ TECHNICAL SPECIFICATIONS Dimensions H*W*D inch 32*34 * 8 Packaged Dimensions inch Sound 54/51/50...

  • Page 11: Sensors List

    Specifications TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) inch /h 17655 17655 Speed(super/high/low) 1000/900/800 1000/900/800 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 cooling heating...

  • Page 12: Piping Diagrams

    Piping diagrams 5 Pinping diagrams Domestic air conditioner...

  • Page 13: Printed Circuit Board Connector Wiring Diagram

    Connector Wiring diagrams 6. Printed Circuit Board Connector Wiring Diagram Connectors series PCB connector Connect with load Connector for fan motor Connector for heat exchanger thermistor and Room temperature thermistor Connector for UP&DOWN STEP motor CN10 Connector for L&R STEP motor CN11 CON21 Connector for power N wire...
  • Page 14 Connector Wiring diagrams CN10 CN36 CN34 CN51 CN11 CN23 CN52 CON2 CON1 CON3 CN21 Domestic air conditioner...
  • Page 15 Connector Wiring diagrams DC FAN MOTOR Fresh air up-down stepmoter left stepmoter EMERGENCY SWITCH Room card RECEIVER DISPLAY AMBIENT TEMP SENSOR PIPING TEMP SENSOR Right stepmoter 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: Dehumidifying Mode

    Functions and Control 7.1.3 Dehumidifying mode. * temperature control range: 60.8---86 F * temperature difference: 30.2/33.8°F Control feature: send the dehumidifying signal to the outdoor system. When Tr>Ts+35.6°F , the compressor will be turned on, the indoor fan will operate at the set speed. When Tr is between the Ts and Ts+35.6°F , 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 *Indoor fan control manual control: You can choose high, medium, low and automatic speed control. Automatic: When Tr<Ts, high speed. When Ts Tr Ts+35.6°F , medium speed. When Tr> Ts+35.6°F , low speed. When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3 minutes (remain at high speed for 3 minutes.) before the next switch.
  • Page 19 Functions and Control mode, the cooling strength/ mute function will be offered; if the system enters the heating mode, then the heating strength/ mute function will be offered; if the system enters the airflow mode, there will be no strength/ mute function. 7.1.6 Mute operation The system enters the mode after receiving the ‘mute signal’.
  • Page 20 Functions and Control keys, the timing of the 8 hours dormancy will take the first timing as the start time, any presses on other keys will not affect the original timing. 2.4 Indoor fan control under the dormant operation. If the indoor fan is at the high speed before the dormant operation setting, the speed will be turned to medium after the setting.
  • Page 21 Functions and Control and will not be revealed. 7.1.13 Abnormal operation of indoor system When the outdoor system operates, if the indoor system operation differs from the outdoor system, the abnormal operation malfunction will be reported. 10s after the report, the indoor system will be closed. Outdoor system mode Indoor system mode conflicts...
  • Page 22 Functions and Control according to the set mode and neglect the communication signals of the outdoor system. However, it has to send signals to the outdoor system. * Quitting condition: This mode can be quitted after receiving the quitting signal from the remote control or urgency system.

  • Page 23: Value Of Thermistor

    Functions and Control 7.1.20 Time cutting function: Connect the test program terminal on the mainboard after connecting the system to the power circuit. The CPU of the main control will be 60 times faster. 7.2 Value of thermistor Room sensor and Pipe Sensor R25 =10K B25 /50 =3700K 3% Temp.(( °F ))

  • Page 24: Functions And Control

    Functions and Control 35.6 29.2545 27.5519 25.9250 29.68 34.23 37.4 27.8708 26.2858 24.7686 29.71 34.20 39.2 26.5605 25.0851 23.6704 29.75 34.16 25.3193 23.9462 22.6273 29.79 34.12 42.8 24.1432 22.8656 21.6361 29.84 34.09 44.6 23.0284 21.8398 20.6939 29.88 34.05 46.4 21.9714 20.8659 19.7982 29.93...
  • Page 25 Functions and Control 4.8400 4.5905 4.3500 29.32 34.59 114.8 4.6708 4.4252 4.1887 29.25 34.65 116.6 4.5083 4.2666 4.0342 29.17 34.72 118.4 4.3524 4.1145 3.8862 29.10 34.79 120.2 4.2026 3.9686 3.7443 29.03 34.86 4.0588 3.8287 3.6084 28.94 34.92 123.8 3.9206 3.6943 3.4780 28.87 34.99...
  • Page 26 Functions and Control 190.4 1.2226 1.1113 1.0092 25.74 37.74 192.2 1.1880 1.0789 0.9789 25.65 37.83 1.1546 1.0476 0.9497 25.56 37.90 195.8 1.1223 1.0174 0.9215 25.45 37.99 197.6 1.0910 0.9882 0.8942 25.36 38.07 199.4 1.0607 0.9599 0.8679 25.27 38.16 201.2 1.0314 0.9326 0.8424 25.16...

  • Page 27: System Configuration

    System configuration 8 System configuration 8.1System configuration After the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation of the room air conditioner, to check if it is capable of cooling(or heating) well, and to know a clever method of using it.

  • Page 28: Parts And Functions

    System configuration Parts and Functions Indoor Unit Outdoor Unit Air Purifying Filter (inside) Inlet Emergency Inlet grille Switch Outlet Anion generator Horizontal flap CONNECTING PIPING OUTLET (inside) (adjust up and down air flow AND ELECTRICAL WIRING Don't adjust it manually) Vertical blade INLET DRAIN HOSE...

  • Page 29: Clock Set

    System configuration Operation Inner side of the controller Load the batteries as illustrated. 2 R-03 batteries, resetting key (cylinder); Be sure that the loading is the panel display “01”, the in line with the “+”/“-”; operating power is 100W; SMART when the panel display SET TEMP.

  • Page 30: Quiet Operation

    System configuration Operation COOL,HEAT and DRY Operation QUIET Operation Unit start. Select operation mode. SOFT QUIET QUIET QUIET Press the COOL button on the remote control. When QUIET Operation COOL appears on the remote control, the display board will turn BLUE. SPEED SPEED Press the HEAT button on the remote control.
  • Page 31 System configuration Operation Press TEMP button. Every time the button is pressed, temp. setting increases 32.9 ºF. Every time the button is For each press of “ ” button, air pressed, temp. setting decreases 32.9 ºF. displays as follows according to different operation modes: QUIET QUIET...
  • Page 32 System configuration Operation HEALTH Operation HEALTH AIRFLOW Operation The setting of The water-ion generator in the airconditioner can generate a lot function of anion effectively balance the quantity of position and anion in the air and also to kill bacteria appears on the display.

  • Page 33: Timer Operation

    System configuration Operation POWER Operation TIMER Operation Set Clock correctly before starting Timer operation. You can let unit start or stop automatically a following times: Before you wake up in the morning, or get back from outside or after you fall asleep at night. Select your desired operation POWER Operation mode.
  • Page 34 System configuration Operation Comfortable SLEEP 3 hours then stops. Temp. is lower than temp. setting so that room temperature won’t be too high for your Before going to bed, you can simply press the SLEEP sleep. button and unit will operate in SLEEP mode and bring you a sound sleep.

  • Page 35: Smart Operation

    System configuration Operation SMART Operation ECO Operation Automatic adjusting with the environmental temperature, (This function is unavailable on running with power saving. some models) SMART One key can give you a comfortable room! The air conditioning unit can AUTO judge the indoor temperature and humidity, and make the adjustment Press ECONOMY button “...

  • Page 36: Test Operation

    System configuration Operation FRESH Operation Emergency operation and test operation Exhaust the vitiated air from the room, and inhale fresh air. Emergency Operation: (This function is unavailable on some models.) Use this operation only when the remote controller is defective or lost, and with function of emergency running, air conditoner can run automatically for a while.
  • Page 37 System configuration 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 2006/95/EC -Electomagnetic CompatibilitY 2004/108/EC 1+2= ROHS...

  • Page 38: Installation Manual Of Room Air Conditioner

    System configuration Installation Manual of Room Air Conditioner Preparation Necessary Tools for Installation Selection of Installation Place Indoor Unit - Select a location that is Torque wrench Hammer (0.67 in,0.87in ,1.02in ) Nipper Robust not causing vibration, where the unit can be supported s ufficiently. Pipe cutter Hacksaw Not affected by heat or steam generated in the vicinity, and where the inlet and outlet of...
  • Page 39 System configuration Accessory parts Making a Hole on the Wall and Fitting the Piping Hole Cover Drain hose (1) Remote controller (1) Make a hole of B mm / inches in diameter, slightly descending to outside the wall. Install piping hole cover and seal it off with putty after installation Cushion (4) AAA dry battery (2) Pitch downward for drainage...
  • Page 40 System configuration Outdoor unit Connecting the indoor/outdoor Electric Cable Installation of Outdoor Unit Removing the wiring cover Install according to the instructions on the 1st page of this manual Remove terminal cover at right bottom corner of indoor unit, then take off wiring cover by removing its screws.
  • Page 41 System configuration Power Source Installation Connection Loosen the screws on terminal block and insert the wires fully into terminal The power source must be exclusively used for air conditioner. block, then tighten the screws. In the case of installing an air conditioner in a moist place, please install an ea- If wiring is not correct, the unit will not operate properly and it could cause a rth leakage breaker.(GFCI) For installation in other places, use an HVACR circuit breaker of time delay fuse.

  • Page 42: Replacement Of Air Purifying Filter

    System configuration Maintenance For Smart Use of The Air Conditioner Remote Controller Indoor Body Setting of proper room Do not block the air inlet temperature or outlet wipe the air conditioner by using a soft and dry cloth.For serious stains, use a neutral detergent diluted with Do not usewater,wipe the controller water.Wring the water out of the...
  • Page 43 System configuration Cautions WARNING Please call Sales/Service Shop for the Installation. Do not attempt to install the air conditioner by yourself because improper works may cause electric shock, fire, water leakage. WARNING Check proper When abnormality such as burnt-small found, Use an exclusive immediately stop the operation button and power source...

  • Page 44: Trouble Shooting

    System configuration Trouble shooting Cautions Before asking for service, check the following Do not obstruct or cover the ventilation grille of the air first. or any other things into the conditoner.Do not put fingers inlet/outlet and swing louver. This appliance is not intended for use by persons (including children) Phenomenon Cause or check points with reduced physiced, sensory or mental capabilities or lack of...

  • Page 45: Dimensional Drawings

    Seivice diagnosis 9.Dimensional drawings 10.Center of gravity Domestic air conditioner...

  • Page 46: Service Diagnosis

    Seivice 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 47 Service diagnosis Code indication Indoor Reference Outdoor fault description displaying Page (LED1 flash panel code times) indication Indoor and 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.

  • Page 48: Thermistor Or Related Abnormality

    Seivice diagnosis 11.4.1 Thermistor or Related Abnormality E1: Room temperature sensor failure Indoor display E2: Heat-exchange sensor failure LED1 flash 10 times Defrost temperature sensor failure LED1 flash 11 times Suction temperature sensor failure Outdoor display 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 49: Eeprom Abnormal

    Seivice diagnosis 11.4.2 EEPROM abnormal Indoor Display E4: indoor EEPROM error outdoor 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 detection when the data of EEPROM is error or the EEPROM is damaged conditions Faulty EEPROM data Supposed causes...

  • Page 50: Indoor Ac Fan Motor Malfunction

    Seivice diagnosis 11.4.3 Indoor AC fan motor malfunction Indoor Display The fan speed detected by the Hall IC during fan motor running which is used to Method of malfunction detection determine the fan motor operating Malfunction detection When there is no fan speed feedback signal within 2 minutes conditions Operation halt due to breaking of wire inside the fan motor.

  • Page 51: Outdoor Dc Fan Motor Fault

    Seivice diagnosis 11.4.4 Outdoor DC fan motor fault Outdoor diplay LED1 flash 9 times Method of DC fan motor is detected by checking the fan running condition and so on malfunction detection Malfunction detection when the data of EEPROM is error or the EEPROM is damaged conditions DC fan motor protection dues to the DC fan motor faulty Supposed causes...
  • Page 52 Seivice diagnosis Check whether Terminal on the outdoor mainboard is well inserted. Reinsert the terminals Is it normal? Electrify the machine again and turn it on in the Cool state with the remote controller. check whether motor can Measure the voltage between 1 and 3 of the terminal of fan motor on the mainboard about DC310V, Measure the voltage between 3 and 4 of the terminal about DC15V.

  • Page 53: Ipm Protection

    Seivice diagnosis 11.4.5 IPM protection Outdoor diplay LED1 flash 2 times Method of IPM protection is detected by checking the compressor running condition and so on malfunction detection Malfunction detection The system leads to IPM protection due to over current conditions The compressor faulty leads to IPM protection circuit component of IPM is broken and led to IPM protection...
  • Page 54 Seivice diagnosis 11.4.6 Over-current of the compressor LED1 flash 3 or 24 or 25 times Outdoor diplay Method of he current of the compressor is too high malfunction detection Malfunction detection when the IPM Module is damaged or the compressor is damaged. power supply conditions voltage is too low or too high...

  • Page 55: The Communication Fault Between Ipm And Outdoor Pcb

    Seivice diagnosis 11.4.7 The communication fault between IPM and outdoor PCB Outdoor diplay 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 detection conditions The IPM module broken leads to communication fault...
  • Page 56 Seivice diagnosis 11.4.6 Over-current of the compressor LED1 flash 3 or 24 or 25 times Outdoor diplay Method of he current of the compressor is too high malfunction detection Malfunction detection when the IPM Module is damaged or the compressor is damaged. power supply conditions voltage is too low or too high...

  • Page 57: Overheat Protection For Discharge Temperature

    Seivice diagnosis 11.4.9 Overheat Protection For Discharge Temperature Outdoor diplay LED1 flash 8 times Method of The Discharge temperature control is checked with the temperature being detected by malfunction detection the Discharge pipe thermistor Malfunction detection when the compressor discharge temperature is above 230 F conditions Electronic expansion valve defective Supposed causes...

  • Page 58: The Communication Fault Between Indoor And Outdoor

    Seivice diagnosis 11.4.10 The communication fault between indoor and outdoor indoor diplay Outdoor diplay 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 detection The indoor PCB broken leads to communication fault conditions...
  • Page 59 Seivice 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 60: Loss Of Synchronism Detection

    Circuit diagrams 11.4.11 Loss of synchronism detection Inverter side current detection is abnormal Outdoor diplay LED1 flash 18 times LED1 flash 19 times The position of the compressor rotor can not detected normally Method of malfunction detection when the wiring of compressor is wrong or the connection is poor; or the compressor Malfunction detection is damaged conditions...
  • Page 61 Circuit diagrams 11.4.12 High work-intense protection LED1 flash 21 times Outdoor diplay Method of High work-intense control is activated in the heating mode if the temperature being malfunction detection sensed by the heat exchanger thermistor exceeds the limit. Activated when the temperature being sensed by the heat exchanger rises above Malfunction detection conditions twice in 30 minutes.

  • Page 62: Circuit Diagrams

    Circuit diagrams 12. Circuit diagrams +12V FLZ1 HXF1 TEST 25/35 +12V MODE EEPROM C1 8 100n F ROOM SRCK PIPE DIGH DIGL MODE KI1/AN9/P11 KI2/AN10/P12 P33/SSI DIG_MODE KI3/AN11/P13 P34/SDA/SCS DIGL COM3 MODE (INT2)/P32 MODE DIGH COM2 (INT1)/P36 P43/XCIN +12V TAO/P30 P44/XCOUT TBO/P31 RESET...
  • Page 63 Circuit diagrams Sincere Forever Haier Group Edited by : Zou Na 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...

  • Page 64: Removal Procedure

    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 65: Removal Of Air Filter

    Removal of procedure 1.Removal of Air Filter Domestic Air Condition...
  • Page 66 Removal of procedure Please embed the air filters into the unit along the grooves as installation. Please embed the two hooks on air filter completely into the unit during installation. Domestic Air Condition...

  • Page 67: Removal Of Front Panel

    Removal of procedure 2.Removal of front panel until it is on the horizontal position, and then release the pivots on both sides of the unit to remove the front panel. Please close the panels before start the removal procedure of front grille. one side to another to release each axis.
  • Page 68 Removal of procedure HOOKS three Domestic Air Condition...

  • Page 69: Removal Of Horizontal Flap

    Removal of procedure 3.Removal of horizontal flap flap flap flap flap Domestic Air Condition...

  • Page 70: Removal Of Drain Pan

    Removal of procedure 4.Removal of Drain pan Domestic Air Condition...
  • Page 71 Removal of procedure 5.Removal of vertical blades and swing motor Domestic Air Condition...

  • Page 72: Removal Of Electrical Box

    Removal of procedure 6.Removal of Electrical Box Domestic Air Condition...

  • Page 73: Removal Of Heat Exchanger

    Removal of procedure 7.Removal of Heat Exchanger Domestic Air Condition...
  • Page 74 Removal of procedure Domestic Air Condition...

  • Page 75: Removal Of Fan Rotor And Motor

    Removal of procedure 8.Removal of Fan Rotor and Motor Domestic Air Condition...
  • Page 76 Removal of procedure Domestic Air Condition...

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