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Haier R410A manual

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Table of contents for the manual

  • Page 1

    System Indoor Unit SERVICE MANUAL R410A MODEL : ARNU Series URNU Series CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel. Internal Use Only http://biz.lgservice.com R410A[...]

  • Page 2

    - 2 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Air Conditioner Ser vice Manual T ABLE OF CONTENTS Safety Precautions ............................................................................................................................3 P art 1 General Information .[...]

  • Page 3

    - 3 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only P ar t 1 General Inf ormation 1. Model Names .............................................4 2. External Appearance .................................5 3. Nomenc lature .............................................6[...]

  • Page 4

    Model Names - 4 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Model Names SE Wall Mounted (General) S5 SE Mirror S3 SF 1 Way TJ 2 Way TL TE 4 Way TP TN TM BH BG High Static BR B8 B1 Low Static B2 B3 B4 Ceiling & Floor VE Ceiling Suspended VJ CE With Case CF CE CF Capa[...]

  • Page 5

    Exter nal Appear ance - 5 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. External Appearance Wall Mounted ART COOL Mirror Ceiling Cassette- 1Way Ceiling Cassette- 4Way Ceiling & Floor Ceiling Suspended ARNU07GTJ*2 ARNU09GTJ*2 ARNU12GTJ*2 Ceiling Cassette -2Way ARNU18GT[...]

  • Page 6

    Nomenclature - 6 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Nomenc lature ARN U G 07 A TJ 2 Serial Number Chassis Name Electrical Ratings 1:1Ø, 115V, 60Hz 2: 1Ø, 220V, 60Hz 6:1Ø, 220 ~ 240V, 50Hz 7: 1Ø, 100V, 50/60Hz G:1Ø, 220 ~ 240V, 50Hz / 220V 60Hz Total Coolin[...]

  • Page 7

    - 7 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only P ar t 2 Indoor Units Ceiling Cassette 1 W a y .................................................................................8 2 W a y ...............................................................................13 4 W a[...]

  • Page 8

    - 8 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ......................................................................................9 2. Operation Details ........................................................................10 3. Dimensions ..............[...]

  • Page 9

    - 9 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Specification 1. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Co[...]

  • Page 10

    - 10 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Detail ■ A uto Swing Control • This function is to swing the louver up and down automatically. ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan [...]

  • Page 11

    - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. ■ Hot-star t Contr ol The indoor fan does no rotate until the evaporator p[...]

  • Page 12

    - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 4 2 1 3 860 32.8 410 344.4 961.2 16.5 19.1 50 83 36 30 242.5 173 151 100 56 83 138 131 110 16.4 . 198.8 480 939 1070 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com C[...]

  • Page 13

    - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ....................................................................................14 2. Operation Details ........................................................................15 3. Dimensions ..............[...]

  • Page 14

    - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Deice ([...]

  • Page 15

    - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Detail ■ A uto Swing Control • This function is to swing the louver up and down automatically. ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan [...]

  • Page 16

    - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. ■ Hot-star t Contr ol The indoor fan does no rotate until the evaporator p[...]

  • Page 17

    - 17 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 830 A B 47.9 275 550 69.5 889.2 1050 640 28.5 4 2 1 3 TL A B 225 126.5 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: TL Ceiling Cassette 2-wa y ARNU18[...]

  • Page 18

    - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ....................................................................................19 2. Operation Details ........................................................................20 3. Dimensions ..............[...]

  • Page 19

    - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Deice ([...]

  • Page 20

    - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Detail ■ A uto Swing Control • This function is to swing the louver up and down automatically. ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan [...]

  • Page 21

    - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. ■ Hot-star t Contr ol The indoor fan does no rotate until the evaporator p[...]

  • Page 22

    - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 269 670 30 570 269 90 90 120.4 30 521 670 570 450 40 110 110 670 670 4 1 3 2 5 6 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: TE Ceiling Cassette 4-w[...]

  • Page 23

    - 23 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ....................................................................................24 2. Operation Details ........................................................................25 3. Dimensions ..............[...]

  • Page 24

    - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Deice ([...]

  • Page 25

    - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Detail ■ A uto Swing Control • This function is to swing the louver up and down automatically. ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan [...]

  • Page 26

    - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. ■ Hot-star t Contr ol The indoor fan does no rotate until the evaporator p[...]

  • Page 27

    - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: TP Ceiling Cassette 4-wa y ARNU24GTP*2 ARNU28GTP*2 Note 1. Unit should be installed in compliance with t[...]

  • Page 28

    - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Dimensions 840 126 62 R35 246 195 A direction View 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: TN Ceiling Cassette 4-wa y ARNU36GTN*2 Note 1. Unit should be installed in com[...]

  • Page 29

    - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: TM Ceiling Cassette 4-wa y ARNU42GTM*2 ARNU48GTM*2 Note 1. Unit should be installed in compliance with the installatio[...]

  • Page 30

    - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ....................................................................................31 2. Operation Details ........................................................................32 3. Dimensions ..............[...]

  • Page 31

    - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Functions 1. Functions • Room temperature sensor. (THERMISTOR) • Maintains the room temperature in accordance with the Setting Temp. • Indoor fan is delayed for 5 sec at the starting. • High, Med, Low, CHAOS • Inte[...]

  • Page 32

    Operation Details - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details DISPLA Y 1) High quality LCD remote controller supplied Operation Indicator • On while in appliance operation, off while in appliance pause Timer Indicator • On while in timer mode [...]

  • Page 33

    Operation Details - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Health y Dehumidification Mode • When the dehumidification operation input by the remote controller is received, the intake air temperature is detected and the setting temp is automatically set accord[...]

  • Page 34

    Operation Details - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Fuzzy Operation (Outdoor unit H/P Model) • When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected. [...]

  • Page 35

    Operation Details - 35 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only • At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 ° C ≤ Intake Air Temp => 25 ° C 24 ° C ≤ Intake Ai[...]

  • Page 36

    Operation Details - 36 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Off-Timer <=> On-Timer Operation • When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation is carried out according to the set time. ■ [...]

  • Page 37

    Operation Details - 37 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - State of Operation ON/OFF - Operation Mode/Setting Temp/Selected Airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour) ■ Forced Operation (Outdoor unit C/O Model) • To operate [...]

  • Page 38

    Operation Details - 38 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Buzzer Sounding Operation • When the appliance-operation key is input by the remote controller, the short “ beep-beep- ” sounds. • When the appliance-pause key is input by the remote controller,[...]

  • Page 39

    Dimensions - 39 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: SE AR T COOL Mirror ARNU07GSE*2 ARNU09GSE*2 ARNU12GSE*2 ARNU15GSE*2 W Model ARNU07GSE*2 ARNU09GSE*2 ARNU[...]

  • Page 40

    Dimensions - 40 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: S3 AR T COOL Mirror ARNU18GS3*2 ARNU24GS3*2 W Model ARNU18GS3*2 ARNU24GS3*2 HD 1170 315 173 Note 1. Unit should be ins[...]

  • Page 41

    - 41 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ....................................................................................42 2. Operation Details ........................................................................43 3. Dimensions ..............[...]

  • Page 42

    Functions - 42 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions • Room temperature sensor. (THERMISTOR) • Maintains the room temperature in accordance with the Setting Temp. • Indoor fan is delayed for 5 sec at the starting. • High, Med, Low, CHAOS • Inte[...]

  • Page 43

    Operation Details - 43 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details DISPLA Y 1) High quality LCD remote controller supplied Operation Indicator • On while in appliance operation, off while in appliance pause Timer Indicator • On while in timer mode [...]

  • Page 44

    Operation Details - 44 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Health y Dehumidification Mode • When the dehumidification operation input by the remote controller is received, the intake air temperature is detected and the setting temp is automatically set accord[...]

  • Page 45

    Operation Details - 45 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Fuzzy Operation (Outdoor unit H/P Model) • When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected. [...]

  • Page 46

    Operation Details - 46 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only • At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 ° C ≤ Intake Air Temp => 25 ° C 24 ° C ≤ Intake Ai[...]

  • Page 47

    Operation Details - 47 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Off-Timer <=> On-Timer Operation • When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation is carried out according to the set time. ■ [...]

  • Page 48

    Operation Details - 48 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - State of Operation ON/OFF - Operation Mode/Setting Temp/Selected Airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour) ■ Forced Operation (Outdoor unit C/O Model) • To operate [...]

  • Page 49

    Operation Details - 49 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Buzzer Sounding Operation • When the appliance-operation key is input by the remote controller, the short “ beep-beep- ” sounds. • When the appliance-pause key is input by the remote controller,[...]

  • Page 50

    - 50 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Dimensions 3. Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: SF AR T COOL Galler y ARNU07GSF*2 ARNU09GSF*2 ARNU12GSF*2 W Model ARNU07GSF*2 ARNU09GSF*2 ARNU12GSF*2 HD[...]

  • Page 51

    - 51 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions ......................................................................................52 2. Operation Details ........................................................................53 3. Dimensions .............[...]

  • Page 52

    - 52 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Deice (defrost) control (Heating) [...]

  • Page 53

    - 53 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by mic[...]

  • Page 54

    - 54 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Operation Details ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Thermal Outdoor fan Indoor fan 4way valve Setting Temperat[...]

  • Page 55

    - 55 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Hot-Star t Contr ol • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 ° C. • The operation diagram is as following. Operation Details ON ON Off Off Low Low 1 min Hotstart On[...]

  • Page 56

    - 56 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: B1/B2 Ceiling Concealed Duct (Low Static) ARNU07GB1G2 ARNU09GB1G2 ARNU12GB1G2 ARNU15GB1G2 ARNU18GB2G2 AR[...]

  • Page 57

    - 57 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions ......................................................................................58 2. Operation Details ........................................................................59 3. Dimensions .............[...]

  • Page 58

    - 58 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Deice (defrost) control (Heating) [...]

  • Page 59

    - 59 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by mic[...]

  • Page 60

    - 60 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Operation Details ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Thermal Outdoor fan Indoor fan 4way valve Setting Temperat[...]

  • Page 61

    - 61 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Hot-Star t Contr ol • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 ° C. • The operation diagram is as following. Operation Details ON ON Off Off Low Low 1 min Hotstart On[...]

  • Page 62

    - 62 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: B3/B4 Ceiling Concealed Duct (Built in) ARNU07GB3G2+PBSGB30(Acc'y), PBSC30(Acc'y) ARNU09GB3G2+[...]

  • Page 63

    - 63 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions ......................................................................................64 2. Operation Details ........................................................................65 3. Dimensions .............[...]

  • Page 64

    Funtion - 64 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Deice (defrost) control (H[...]

  • Page 65

    Operation Details - 65 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Intake Air Temperature SET TEMPERATURE +0.5 ° C (Thermo. ON) SET TEMPERATURE -0.5 ° C (Thermo. OFF) More than More than 3 minutes 3 minutes Selecting Selecting Selecting fan speed fan speed fan speed COMP[...]

  • Page 66

    Operation Details - 66 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Thermal Outdoor fan Indoor fan 4way valve Setting Temperat[...]

  • Page 67

    Operation Details - 67 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Hot-Star t Contr ol • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 22 ° C. • The operation diagram is as following. ON ON Off Off Low Low 1 min Hotstart On[...]

  • Page 68

    Dimensions - 68 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: BH Ceiling Concealed Duct (High Static) ARNU07GBHA2 ARNU09GBHA2 ARNU12GBHA2 ARNU15GBHA2 ARNU18GBHA2 ARNU[...]

  • Page 69

    Dimensions - 69 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: BG Ceiling Concealed Duct (High Static) ARNU28GBGA2 ARNU36GBGA2 ARNU42GBGA2 Note 1. Unit should be installed in compli[...]

  • Page 70

    Dimensions - 70 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: BR Ceiling Concealed Duct (High Static) ARNU48GBRA2 Note 1. Unit should be installed in compliance with the installati[...]

  • Page 71

    Dimensions - 71 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: B8 Ceiling Concealed Duct (High Static) URNU76GB8A2 URNU96GB8A2 Note 1. Unit should be installed in compliance with th[...]

  • Page 72

    - 72 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Functions ....................................................................................73 2. Operation Details ........................................................................74 3. Dimensions ..............[...]

  • Page 73

    - 73 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Functions 1. Functions • Room temperature sensor. (THERMISTOR) • Maintains the room temperature in accordance with the Setting temperature • Indoor fan is delayed for 5 sec at the starting. • High, Med, Low, CHAOS ?[...]

  • Page 74

    Operation Details - 74 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details DISPLA Y (1) High quality LCD remote controller supplied Operation Indicator • On while in appliance operation, off while in appliance pause Timer(on/off) and Sleep timer Indicator ?[...]

  • Page 75

    Operation Details - 75 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Healthy Dehumidification Mode • When the dehumidification operation input by the remote controller is received, the intake air temperature is detected and the setting temp is automatically set accordi[...]

  • Page 76

    Operation Details - 76 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 26 ° C ≤ Intake Air Temp => 25 ° C 24 ° C ≤ Intake Air Temp<26 ° C => Intake Air Temp+1 ° C 22 ° C ≤ Intake Air Temp<24 ° C => Intake Air Temp+0.5 ° C 18 ° C ≤ Intake Air Tem[...]

  • Page 77

    Operation Details - 77 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only • At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 ° C ≤ Intake Air Temp => 25 ° C 24 ° C ≤ Intake Ai[...]

  • Page 78

    Operation Details - 78 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Off-Timer <=> On-Timer Operation • When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation is carried out according to the set time. ■ [...]

  • Page 79

    Operation Details - 79 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - Operation Mode/Setting Temp/Selected Airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour) ■ Forced Operation • Operation procedures when the remote control can't be used.[...]

  • Page 80

    Operation Details - 80 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Air Cleaner Operation • When an air cleaner function is selected during Air Conditioner operation - Plasma air cleaner function will be operated while in any operation mode with selecting the function[...]

  • Page 81

    Dimensions - 81 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: SE W all Mounted ARNU07GSE*2 ARNU09GSE*2 ARNU12GSE*2 ARNU15GSE*2 W Model ARNU07GSE*2 ARNU09GSE*2 ARNU12G[...]

  • Page 82

    Dimensions - 82 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: S5 W all Mounted ARNU18GS5*2 ARNU24GS5*2 W Model ARNU18GS5*2 ARNU24GS5*2 HD 1090 300 178 Note 1. Unit should be instal[...]

  • Page 83

    - 83 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Funtions ......................................................................................84 2. Operation Details ........................................................................85 3. Dimensions .............[...]

  • Page 84

    - 84 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Function Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Deice (defrost) control (Heating) [...]

  • Page 85

    - 85 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details Operation Details ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dr[...]

  • Page 86

    - 86 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Operation Details ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Thermal Outdoor fan Indoor fan 4way valve Setting Temperat[...]

  • Page 87

    - 87 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Operation Details ■ Hot-Star t Contr ol • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 ° C. • The operation diagram is as following. ON ON Off Off Low Low 1 min Hotstart On[...]

  • Page 88

    - 88 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Dimensions Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: VE Ceiling & Floor ARNU09GVEA2 ARNU12GVEA2 Note 1. Unit should be installed in compliance with the i[...]

  • Page 89

    - 89 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: VJ Ceiling Suspended ARNU18GVJA2 ARNU24GVJA2 Note 1. Unit should be installed in compliance with the installation manu[...]

  • Page 90

    - 90 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Function ......................................................................................91 2. Operation Details ........................................................................92 3. Dimensions .............[...]

  • Page 91

    - 91 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Function Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Deice (defrost) control (Heating) [...]

  • Page 92

    Operation Details - 92 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2. Operation Details ■ Soft-Dry Operation • The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dr[...]

  • Page 93

    Operation Details - 93 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Thermal Outdoor fan Indoor fan 4way valve Setting Temperat[...]

  • Page 94

    Operation Details - 94 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Hot-Star t Contr ol • The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 ° C. • The operation diagram is as following. ON ON Off Off Low Low 1 min Hotstart On[...]

  • Page 95

    - 95 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Dimensions 3. Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: CE Floor Standing ARNU07GCEA2 ARNU09GCEA2 ARNU12GCEA2 ARNU15GCEA2 ARNU07GCEU2 ARNU09GCEU2 ARNU12GCEU2 AR[...]

  • Page 96

    - 96 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Dimensions 76, Seongsan-dong, Changwon City , Gyeongnam, 641-713, K orea www .lgeaircon.com CHASSIS CODE: CF Floor Standing ARNU18GCF A2 ARNU24GCF A2 ARNU18GCFU2 ARNU24GCFU2 Note 1. Unit should be installed in compliance wit[...]

  • Page 97

    - 97 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Pa r t 3 T r ouble shooting guide[...]

  • Page 98

    - 98 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Self-diagnosis function .....................................................................99 T r ouble shooting guide[...]

  • Page 99

    - 99 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Self-diagnosis function Self-diagnosis function Self-Diagnosis Function Error Indicator • This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. • Error mark is displayed [...]

  • Page 100

    Self-diagnosis function - 100 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 01 Indoor unit air sensor error 02 Indoor unit pipe inlet sensor error 06 Indoor unit pipe outlet sensor error Error No. Error Type Error Point Main Reasons Indoor unit sensor is open/short 1. Indoor[...]

  • Page 101

    Self-diagnosis function - 101 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only * If there is no remote controller to replace : Use another unit ’ s remote controller doing well ** Check cable : Contact failure of connected portion or extension of cable are main cause Check an[...]

  • Page 102

    Self-diagnosis function - 102 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Drain pump/float switch fault 04 Drain pump error 2. Improper drain pipe location, clog- ging of drain pipe 3. Indoor unit PCB fault Error No. Error Type Error Point Main Reasons ■ Error dia gno[...]

  • Page 103

    Self-diagnosis function - 103 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only *** Indoor PCB drain pump connector (Check input of 220V) (Marked as CN-DPUMP) float A:Point to check rotating Float switch Housing ( CN-FLOAT ) Float switch connector [***] Standard of drain pipe he[...]

  • Page 104

    Self-diagnosis function - 104 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Auto addressing is not done 2. transmission cable is not connected 3. Short circuit of transmission cable 4. Indoor unit transmission circuit fault 05 5. Outdoor unit transmission circuit fault 6.[...]

  • Page 105

    Self-diagnosis function - 105 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 06 Refer to CH02 Error No. Error Type Error Point Main Reasons Indoor unit outlet pipe temperature sensor open or short Indoor unit outlet pipe temperature sensor error 07 1. Indoor units are in diff[...]

  • Page 106

    Self-diagnosis function - 106 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 09 1. Error developed in transmission between the micro- processor and the EEPROM on the sur- face of the PCB. 2. ERROR due to the EEPROM damage Error No. Error Type Error Point Main Reasons Indoor u[...]

  • Page 107

    Self-diagnosis function - 107 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 10 Indoor unit BLDC fan motor failure Error No. Error Type Error Point Main Reasons Indoor BLDC fan motor feedback signal is absent (for 50 sec.) 1. Motor connector connection fault 2. Indoor PCB fau[...]

  • Page 108

    Self-diagnosis function - 108 - Copyright ©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 11 Indoor unit transmission error Error No. Error Type Error Point Main Reasons Indoor unit doesn ’ t get sig- nal from ODU for 3 minutes continuously 1. Indoor 485 transmission PCB fault 2. After [...]

  • Page 109

    P/NO : MFL50459501 APRIL, 2008[...]