Haier 1U12BE2ERA Service Manual
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Haier 1U12BE2ERA Service Manual

Wall mounted type dc inverter super match
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SERVICE MANAUL

Wall Mounted Type

DC Inverter SUPER MATCH
Model No.
1U12BE2ERA
HSU12VHGL-W
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
2014 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Haier Group
Version：V1
Date：2014-05-25

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Summary of Contents for Haier 1U12BE2ERA

  • 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 Haier Group Version：V1...

  • 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. Conter of gravity ................... 10. Installations ..................11.

  • Page 3: Introduction

    Introduction                                                                                                                                               1 Introduction 1.1 Model name explanation Apply toT1;...

  • Page 4: Safety Cautions

    Introduction                                                                                                                                               1.2 Safety Cautions Be sure to read the following safety cautions before conducting repair work.

  • Page 5: Cautions Regarding Products After Repair

    Introduction                                                                                                                                               Warning Do not repair the electrical components with wet hands .
  • 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...

  • Page 7: Inspection After Repair

    Introduction                                                                                                                                               Do not install the equipment in a place where there is a possibility of combustible gas leaks.

  • Page 8: Using Icons

    Introduction                                                                                                                                               Check the grounding, and repair it if the equipment is not properly grounded.

  • Page 9: Specifications

    Specification 2 Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT n i l Capacity rated 12000(4780-13300) 13500(5120-13990) Btu/h Power Consumption(Rated) 4027 4095 37.54 37.54 Btuh 706449.6 3801859 ³ 40.6 *10 TECHNICAL SPECIFICATIONS-UNIT Dimensions H*W*D 2.56×0.80×1.77 Packaged H*W*D 3.02×1.1 5×2.03 Dimensions 68.64 dB(A)

  • Page 10: Sensors List

    Specification TECHNICAL SPECIFICATIONS-OTHERS Refrigerant type R410a Refrigerant charge 2.64 Refrigerant Maximum allowable distance 49.2 circuit between indoor an outdoor Maximum allowable level difference 32.8 Refrigerant control Capillary liquid Φ0.02 Piping connections Φ0.03 (external diameter) drain Φ0.05 Heat insulation type Both liquid and Gas pipes Max.

  • Page 11: Piping Diagrams

    Pinping diagrams                                                                                                                                               4．Pinping diagrams  ...

  • Page 12: Operation Range

    Operation range 5．Operation range 114.8 109.4 64.4 60.8 73.4 89.6 77 75.2 19.4 °F 16.4in Domestic air conditioner...

  • Page 13: Printed Circuit Board Connector Wiring Diagram

    Wiring diagrams                                                                                                                                               6.

  • Page 14: Wiring Diagrams

    Wiring diagrams                                                                                                                                               PCB (2) Module PCB series PCB connector...
  • Page 15 Wiring diagrams                                                                                                                                                ...
  • Page 16 Wirin ng diagrams                                                                                ...

  • Page 17: Outdoor Wiring Diagram

    Functions and control                                                                                                                                                      ...

  • Page 18: Functions And Control

    Functions and control 7. Functions and Control 7.1 Main functions and control specification 7.1.1 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 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 Cooling/dehumidification mode: Serial No. Temperature scope Frequency limitation Wh_F<82.4 Max_hz1 46HZ Wh_F<89.6 Max_hz2 72HZ Wh_F<104 Max_hz3 80HZ Wh_F<118.4 Max_hz4 65HZ Wh_F≧118.4 Max_hz5 46HZ Remarks: the above are not only the maximum frequency limitations of the complete appliance which are affected by the environment, but also the maximum ability limitation of the system.

  • Page 20: Protection Function

    Functions and control 7.1.2 The outdoor fan control (Exchange fan) When the fan is changed among every airflow speed (including stop blowing), in order to avoid the airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds, and then it can be changed to another mode (when cooling, the time is changed to 15 seconds).
  • Page 21 Functions and control TTC（°F） Abnormal stop Decreasing the frequency rapidly（1HZ/second） 215.6 Decreasing the frequency slowly (1HZ/10seconds) 208.4 The frequency doesn’t change. 199.4 Increasing the frequency (1HZ/10second) Increasing the frequency（1HZ/1second） TTC>=230°F lasts for 20 seconds. Overheating protection of air-blowing, alarm malfunction to the indoor, others don’t last.
  • Page 22 Functions and control During the starting process of the compressor, if the AC current is greater than 7A, the frequency of 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.
  • Page 23 Functions and control When ice_temp_3〈Tpg_indoor〈ice_temp_3+37.4°F , the frequency of the compressor increases at the speed of 1HZ/10seconds. For example, Tpg_indoor≤32°F last for 2 minutes, and then the outdoor unit will stop, and report underload malfunction, but don’t send malfunction report to the indoor. The compressor stops for more than 3 minutes, Tpg_indoor>...

  • Page 24: Value Of Thermistor

    Functions and control 7.2 Value of Thermistor Ambient Sensor, Defrosting Sensor, Pipe sensor R77° F =10KΩ±3% B77° F /122° F =3700K±3% Temp.(( °F )) Max.(K ) Normal(K ) Min.(K ) Tolerance( ° F ) 165.2170 147.9497 132.3678 28.51 35.15 -20.2 155.5754 139.5600 125.0806...
  • Page 25 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 26 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 27 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 28 Functions and control Discharging Sensor R176 F °=50KΩ±3% B77/176°F=4450K±3% Temp.(( °F )) Max.(KΩ) Normal(KΩ) Min.(KΩ) Tolerance( ) °F 14646.0505 12061.7438 9924.4999 26.67 36.41 -20.2 13654.1707 11267.8730 9290.2526 26.69 36.39 -18.4 12735.8378 10531.3695 8700.6388 26.73 36.39 -16.6 11885.1336 9847.7240 8152.2338 26.74 36.37 -14.8 11096.6531...
  • Page 29 Functions and control 1236.4792 1094.3200 967.6334 27.75 35.80 51.8 1171.0715 1038.0743 919.3533 27.77 35.76 53.6 1109.4661 985.0146 873.7359 27.81 35.74 55.4 1051.4226 934.9440 830.6210 27.84 35.73 57.2 996.7169 887.6792 789.8583 27.88 35.71 945.1404 843.0486 751.3077 27.91 35.67 60.8 896.4981 800.8922 714.8380 27.93 35.65...
  • Page 30 Functions and control 140.7403 132.6980 125.0027 29.41 34.48 132.8 134.8559 127.3081 120.0746 29.44 34.45 134.6 129.2457 122.1630 115.3645 29.48 34.41 136.4 123.8956 117.2504 110.8618 29.53 34.38 138.2 118.7926 112.5589 106.5564 29.57 34.34 113.9241 108.0776 102.4388 29.62 34.30 141.8 109.2784 103.7961 98.5000 29.66 34.27...
  • Page 31 Functions and control 26.1569 24.8685 23.6222 29.17 34.74 213.8 25.3290 24.0574 22.8291 29.10 34.79 215.6 24.5311 23.2765 22.0662 29.03 34.86 217.4 23.7620 22.5245 21.3323 28.96 34.93 219.2 23.0205 21.8002 20.6261 28.89 34.99 22.3055 21.1025 19.9465 28.81 35.06 222.8 21.6159 20.4303 19.2924 28.74 35.13...

  • Page 32: Dimensional Drawings

    Dimensinal drawings 8.Dimensional drawings 2.76 0.84 2.57 1.78 0.24 0.22 0.18 0.84 2.57 9.Center of gravity 2.57 0.84 0.39 0.84 1.78 Domestic air conditioner...

  • Page 33: 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 ●...

  • Page 34: Indoor Unit

    System configuration Accessory parts Making a Hole on the Wall and Fitting the Piping Hole Cover Remote controller (1) Drain hose (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 ●...

  • Page 35: Outdoor Unit

    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 36 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- ●...

  • Page 37: Installations

    Installations                                                                                                                                                      ...

  • Page 38: Problem Symptoms And Measures

    Installations                                                                                                                                                      ...
  • Page 39 Service diagnosis Code indication Indoor Reference Outdoor fault description displaying Page (LED1 flash panel code times) indication Indoor and Communication fault between indoor and Page48 Outdoor outdoor units Room temperature sensor failure Page38 Heat-exchange sensor failure Page38 Indoor Malfunction Indoor fan motor malfunction Page39 Overcurrent protection of AC electricity Page52...

  • Page 40: Thermistor Or Related Abnormality

    Installations 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 41: Eeprom Abnormal

    Installations                                                                                                                                                      ...

  • Page 42: Indoor Ac Fan Motor Malfunction

    Installations 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 determine the fan motor operating malfunction detection 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 43: Outdoor Dc Fan Motor Fault

    Installations                                                                                                                                                      ...
  • Page 44 Installations                                                                                                                                                      ...

  • Page 45: Ipm Protection

    Installations                                                                                                                                                      ...

  • Page 46: Power Supply

    Installations                                                                                                                                                      ...

  • Page 47: The Communication Fault Between Ipm And Outdoor Pcb

    Installations                                                                                                                                                      ...

  • Page 48: Power Supply Over Or Under Voltage Fault

    Installations                                                                                                                                                      ...

  • Page 49: Overheat Protection For Discharge Temperature

    Installations 11.4.9 Overheat Protection For Discharge Temperature LED1 flash 8 times Outdoor diplay 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 50: The Communication Fault Between Indoor And Outdoor

    Installations 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 51 Installations （A） 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 52 Table of Contents 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 53 Table of Contents 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 149°F twice in 30 minutes.

  • Page 54: Performance And Cerves Diagrams

    Sound level 12.Performence and cerves diagrams 12.1 Cooling capacity-temperature curves Cooling value-temerature table y t i DB/WB 64.4 89.6 109.4 114.8 °F °F °F °F °F °F °F °F 64.4/53.6 2443 2417 4048 3627 3228 3149 2910 2160 °F °F 64.4/57.2 2494 2469...
  • Page 55 Sound level 12.2 Cooling power consumption value- temperature curves Power consumption value-temp.table y t i DB/WB 64.4°F 68°F 77°F 89.6°F 95°F 104°F 109.4°F 114.8°F 64.4/53.6°F 1138 1186 1220 1301 1227 64.4/57.2°F 1159 1206 1240 1328 1362 68/59°F 1179 1227 1260 1349 1396 71.6/60.8°F...

  • Page 56: Cooling Discharge Pressure Curves

    Sound level 12.3 Cooling discharge pressure curves Cooling discharge pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 60.8°F 66.2°F 71.6°F 59°F 2421 2504 2588 77°F 3239 3273 3339 86°F 3239 3306 3339 95°F 3273 3339 3439 104°F 3306 3473 3473 113°F 2554 2554...

  • Page 57: Cooling Suction Pressure Curves

    Sound level 12.4 Cooling suction pressure curves Cooling suction pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 60.8°F 66.2°F 71.6°F 59°F 77°F 86°F 95°F 104°F 113°F cooling suction pressure 60.8°F 66.2°F 1050 71.6°F 59°F 77°F 86°F 95°F 104°F 113°F Outdoor Temp. Domestic air conditioner...
  • Page 58 Sound level 12.5 Heating capacity-temperature curves Heating capacity and indoor/outdoor temp.table y t i DB/WB 59°F 68°F 77°F 5°F 2338 1776 1905 23°F 3594 3286 3031 41°F 4676 4240 3940 44.6/42.8°F 4473 4167 3779 59°F 3660 3472 2955 68°F 3366 3248 2703 77°F...
  • Page 59 Sound level 12.6 Heating power consumption value- temperature curves Power consumption value-temp.table y t i DB/WB 59°F 68°F 77°F 5°F 1037 23°F 1057 1044 1261 41°F 1193 1356 1437 44.6/42.8°F 1094 1204 1315 59°F 68°F 77°F 59°F 68°F heating capacity and indoor/outdoor temp.curves 77°F 1600 1400...

  • Page 60: Heating Discharge Pressure Curves

    Sound level 12.7 Heating discharge pressure curves Heating discharge pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 59°F 68°F 77°F 2941 3069 3165 5°F 14°F 3005 3101 3197 3053 3133 3229 23°F 32°F 3101 3165 3261 41°F 3165 3197 3293 50°F 3062 3154...

  • Page 61: Heating Suction Pressure Curves

    Sound level 12.8 Heating suction pressure curves Heating suction pressure.table outdoor temp. indoor temp. (humidity 46%) DB/WB 59°F 68°F 77°F 5°F 14°F 23°F 50°F 41°F 50°F 59°F 68°F 59 °F heating suction pressure 68 °F 77 °F 5 °F 14 °F 23 °F 50 °F 41 °F...

  • Page 62: Sound Level

    Sound level 13.Sound level Sound power level(Indoor unit) Sound power level 230V,60HZ Model (Outdoor unit) Measuring location of (cooling/heating) microphone Cooling/heating 1U12BE2ERA Domestic air conditioner...

  • Page 63: Circuit Diagrams

    Circuit diagrams   14 Circuit diagrams 14.1 Outdoor unit control board Circuit Diagrams   直流风机 222/250VAC CY10 222/250VAC 472/250V/275V 472/250V/275V 103/250V/275V 103/250V/275V 472/250V/275V 104/50V 472/250V/275V CN10 CN12 ERROR CN13 LED1 R73 10K/1% 102/50V 20K/1% 20K/1% 20K/1% 47K/1% R74 10K/1% 102/50V E-valve(White) SW TEST(BLUE) HW(Yellow)
  • Page 64 Circuit diagrams   100K/2W 104/50V R28 5.1K/1%   Domestic air conditioner                                                                                                                                                            ...
  • Page 65 Circuit diagrams   14.2 Module board Circuit Diagram R219 1K R217 1K R229 4.22K R228130K R227130K R226130K D205 LL4148 VUF B VVF B VWFB C030 C029 R003 4.7K C007 R001 4.7K C205 R002 4.7K R004 4.7K R231 4.7K C008 C009  ...
  • Page 66 Circuit diagrams Sincere Forever Haier Group Edited by : Zou Na Haier Industrial Park, No.1, Haier Road Liu xiang 266101, Qingdao, China_ Signed by : He Shiquan Http：//www.haier.com Approved by: Wu Hongjin Domestic air conditioner...
  • Page 67 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 68 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 69: 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 70 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 71 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 72 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 73 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 74 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 75: 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 76: Specifications

    Specifications 3 Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE NOMINAL CAPACITY and NOMINAL INPUT n i l Capacity rated 13500 12000 4602 4773 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 77: 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 78: Piping Diagrams

    Piping diagrams 5 Pinping diagrams Domestic air conditioner...

  • Page 79: 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 80 Connector Wiring diagrams CN10 CN36 CN34 CN51 CN11 CN23 CN52 CON2 CON1 CON3 CN21 Domestic air conditioner...
  • Page 81 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 82: 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 83: 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 84 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 85 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 86 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 87 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 88 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 89 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 90 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 91 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 92 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 93: 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 94: 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 95: 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 96: 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 QUIET Operation the remote control. When COOL appears on the remote control, the display board will turn BLUE. SPEED SPEED Press the HEAT button on the remote control.
  • Page 97 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 98: Health Operation

    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 99: 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 100 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 101: 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 102: 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 103 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 104 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 ●...
  • Page 105 System configuration Accessory parts Making a Hole on the Wall and Fitting the Piping Hole Cover Remote controller (1) Drain hose (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 ●...
  • Page 106 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 107 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- ●...

  • Page 108: 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 Proper temperature 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 109 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 installation of the...

  • Page 110: Trouble Shooting

    System configuration Trouble shooting Cautions Before asking for service, check the following grille of the air Do not obstruct or cover the ventilation first. conditoner.Do not put fingers or any other things into the 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 111: Dimensional Drawings

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

  • Page 112: 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 113 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.56 Outdoor outdoor units Room temperature sensor failure Page.46 Indoor Malfunction Heat-exchange sensor failure Page.46 Indoor fan motor malfunction Page.48 Outdoor Overcurrent...
  • Page 114 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 115 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 116 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 117 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 118 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 119 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 120 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 121 Seivice diagnosis 11.4.7 The communication fault between IPM and outdoor PCB LED1 flash 4 times Outdoor diplay 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 122 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 123 Seivice diagnosis 11.4.9 Overheat Protection For Discharge Temperature LED1 flash 8 times Outdoor diplay 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 124 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 125 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 126 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 127 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 128: 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 129 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...

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