Internal Use Only http://biz.lgservice.com System Indoor Unit R410A SERVICE MANUAL R410A MODEL : ARNU Series URNU Series CAUTI Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
Air Conditioner Service Manual TABLE OF CTENTS Part 1 General Information...3 Model Names...4 External Appearance...5 Nomenclature...6 Part 2 Indoor Units...7 Ceiling Mounted Cassette Type (1 way)...8 Ceiling Mounted Cassette Type (2 way)...16 Ceiling Mounted Cassette Type (4 way)(1)...21 Ceiling Mounted Cassette Type (4 way)(2)...27 Art Cool Type(Mirror)...34 Art Cool Type(Gallery)...45 Ceiling Concealed Duct Type (Low static)...55 Ceiling Concealed Duct Type (Built in)...61 Ceiling Concealed Duct Type (High static)...67 Wall Mounted Type...76 Ceiling & Floor Ceiling Suspended...87 Floor Standing Type...94 Vertical Air Handling Unit...101 Part 3 Trouble shooting guide...109-2 -
Part 1 General Information 1. Model Names...4 2. External Appearance...5 3. Nomenclature...6-3 -
Model Names 1. Model Names Category Wall Mounted (General) ART COOL Ceiling Cassette Ceiling Concealed Duct Mirror Chassis Name SE S5 SE S8 1 Way TJ 2 Way TL 4 Way High Static Low Static Built In Ceiling & Floor Ceiling Suspended Floor Standing With Case Without Case Vertical AHU TR TQ TP TN TM BH BG BR B8 B1 B2 B3 B4 VE VJ CE CF CE CF NJ NK 7.5 (2.2) ARNU07 3SE*2 ARNU07 3SE*2 ARNU07 3TJ*2 ARNU07 3TR*2 ARNU07 3BHA2 ARNU07 3B1G2 ARNU07 3B3G2 ARNU07 3CEA2 ARNU07 3CEU2 9.6 (2.8) ARNU09 3SE*2 ARNU09 3SE*2 ARNU09 3TJ*2 ARNU09 3TR*2 ARNU09 3BHA2 ARNU09 3B1G2 ARNU09 3B3G2 ARNU09 3VEA2 ARNU09 3CEA2 ARNU09 3CEU2 12.3 (3.6) ARNU12 3SE*2 ARNU12 3SE*2 ARNU12 3TJ*2 ARNU12 3TR*2 ARNU12 3BHA2 ARNU12 3B1G2 ARNU12 3B3G2 ARNU12 3VEA2 ARNU12 3CEA2 ARNU12 3CEU2 15.4 (4.5) ARNU15 3SE*2 ARNU15 3SE*2 ARNU15 3TQ*2 ARNU15 3BHA2 ARNU15 3B1G2 ARNU15 3B3G2 ARNU15 3CEA2 ARNU15 3CEU2 h *ART COOL- SE/S8( * R:Mirror, V:Silver, B : Blue), SF(* E:Red, V:Silver, G:Gold, 1: Kiss (Photo changeable)) *Wall Mounted- A: Basic, L:Plasma, *Ceiling Cassette- A: Basic, C:Plasma 19.1 (5.6) ARNU18 3S5*2 ARNU18 3S8*2 ARNU18 3TL*2 ARNU18 3TQ*2 ARNU18 3BHA2 ARNU18 3B2G2 ARNU18 3B4G2 ARNU18 3VJA2 ARNU18 3CFA2 ARNU18 3CFU2 ARNU18 3NJA2 Capacity(Btu/h(kW)) 24.2 28.0 30.0 36.2 (7.1) (8.2) (8.8) (10.6) ARNU24 3S5*2 ARNU24 3S8*2 ARNU24 3TL*2 ARNU24 3TP*2 ARNU24 3BHA2 ARNU24 3B2G2 ARNU24 3B4G2 ARNU24 3CFA2 ARNU24 3CFU2 ARNU24 3NJA2 ARNU28 3TP*2 ARNU28 3BGA2 ARNU30 3NJA2 ARNU36 3TN*2 ARNU36 3BGA2 ARNU36 3NJA2 42.0 (12.3) ARNU42 3TM*2 ARNU42 3BGA2 ARNU42 3NKA2 48.1 (14.1) ARNU48 3TM*2 ARNU483 BRA2 ARNU48 3NKA2 54.0 (15.8) ARNU54 3NKA2 76.4 (22.4) URNU76 3B8A2 95.5 (28.0) URNU96 3B8A2-4 -
2. External Appearance External Appearance Ceiling Cassette- 1Way ARNU073TJ*2 ARNU093TJ*2 ARNU123TJ*2 Ceiling Cassette- 4Way ARNU073TR*2 ARNU093TR*2 ARNU123TR*2 ARNU153TQ*2 ARNU183TQ*2 Ceiling & Floor Ceiling Suspended Ceiling Cassette -2Way ARNU183TL*2 ARNU243TL*2 ARNU243TP*2 ARNU283TP*2 ARNU363TN*2 ARNU423TM*2 ARNU483TM*2 Ceiling Concealed Duct - Low Static ARNU073B1G2 ARNU093B1G2 ARNU123B1G2 ARNU153B1G2 ARNU183B2G2 ARNU243B2G2 Ceiling Concealed Duct Built-in ARNU073B3G2 ARNU093B3G2 ARNU123B3G2 ARNU093VEA2 ARNU123VEA2 ARNU183VJA2 ARNU243VJA2 * A:Basic, C:Plasma * A:Basic, C:Plasma ARNU153B3G2 ARNU183B4G2 ARNU243B4G2 * A:Basic, C:Plasma Ceiling Concealed Duct - High Static ARNU073BHA2 ARNU093BHA2 ARNU123BHA2 ARNU153BHA2 ARNU183BHA2 ARNU243BHA2 ARNU283BGA2 Wall Mounted ARNU073SE*2 ARNU093SE*2 ARNU123SE*2 ARNU153SE*2 ARNU183S5*2 ARNU243S5*2 ART COOL Mirror ARNU073SE*2 ARNU093SE*2 ARNU123SE*2 ARNU153SE*2 ARNU183S8*2 ARNU243S8*2 Floor Standing With case ARNU073CEA2 ARNU093CEA2 ARNU123CEA2 ARNU153CEA2 ARNU183CFA2 ARNU243CFA2 Without case ARNU073CEU2 ARNU093CEU2 ARNU123CEU2 ARNU153CEU2 ARNU183CFU2 ARNU243CFU2 Vertical AHU ARNU183NJA2 ARNU243NJA2 ARNU303NJA2 ARNU363NJA2 ARNU423NKA2 ARNU483NKA2 ARNU543NKA2 ARNU363BGA2 ARNU423BGA2 ARNU483BRA2 URNU763B8A2 URNU963B8A2 * A:Basic, L:Plasma * R:Mirror V:Silver B : Blue - 5 -
Nomenclature 3. Nomenclature ARN U 07 3 TJ A 2 Generation Combinations of functions A: Basic function L: Neo Plasma(Wall Mounted) C:Plasma(Ceiling Cassette) G: Low Static U: Floor Standing without Case ART COOL Type Panel Color B:Blue R:Mirror V: Silver Chassis Name Electrical Ratings 1:1Ø, 115V, 60Hz 6:1Ø, 220-240V, 50Hz 3:1Ø, 208/230V, 60Hz 2: 1Ø, 220V, 60Hz 7: 1Ø, 100V, 50/60Hz Total Cooling Capacity in Btu/h Class EX) 18,000 Btu/h Class '18' Combination of Inverter Type and Cooling Only or Heat Pump N: AC Inverter and H/P V: AC Inverter and C/O U: DC Inverter and H/P and C/O System with Indoor Unit using R410A LGETA:U Ex) URN - 6 -
Part 2 Indoor Units Ceiling Cassette 1 Way...8 2 Way...13 4 Way(1)...20 4 Way(2)...23 Art Cool Series ART COOL Miror...34 ART COOL Gallery...45 Ceiling Concealed Duct Low Static...55 Built In...62 High Static...67 Wall Mounted(General) Wall Mounted...76 Ceiling & Floor Ceiling & Floor Ceiling Suspended...87 Floor Standing Floor Standing...94 Vertical Air Handling Unit...117-7 -
Ceiling Mounted Cassette Type (1Way) 1. Functions...9 2. Operation Details...10 3. Dimensions...12-8 -
Functions 1. Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Maintains the room temperature in accordance with the Setting Temperature. Indoor fan is delayed for 5 seconds at the starting. Jet, High, Med, Low, Lolow Intermittent operation of fan at low speed. The louver can be set at swing up and down automatically. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) Compact and light design Low noise Long life filter High head Drain pump Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature will be reached at 25 C(76 F). To install a unit is very convenient because of smaller size than textile. The most advanced low-noise design. The adoption of turbo fan and round type heat exchanger give the quietest operation. Long life wrinkle(type) and washable and anti-bacteria filter is adopted. Built-in drain pump automatically drains water. A standard drain-head height of up to 700mm(27-9/16inch) is possible. High-Ceiling corresponding Function Central Control(Optional) According to the height of ceiling, the RPM of indoor fan motor is selected to increase air reaching distance. It is operating individually or totally by central control function. - 9 -
Operation Detail 2. Operation Detail (1) The function of main control n Auto Swing Control This function is to swing the louver up and down automatically. n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes INDOOR FAN Selected Low Selected Low Selected Speed Speed Speed Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 To be selected higher temperature To be selected higher temperature 2TH (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-10 -
n Heating Mode Operation Operation Detail The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor pipe Temperature 36 C(96 F) 33 C(92 F) 25 C(76 F) 20 C(68 F) Room Temperature Thermal Off Thermal On Minimum 3min Thermal OFF Outdoor fan OFF Setting Setting Indoor fan Stop Low Low fan Low fan Low Stop Stop Low speed speed 4 Way Setting fan speed n Hot-start Control Thermal Thermal OFF Indoor Unit mode ST+2 ST+4 2TH To be selected lower temperature To be selected lower temperature (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. mode ST+0 ST+2 The indoor fan does no rotate until the evaporator piping temperature will be reached to 25 C(76 F). The operation diagram is as following. Pipe temperature 35 C(94 F) 30 C(86 F) 27 C(80 F) 25 C(76 F) 22 C(72 F) LO LOW Indoor fan speed COMP OFF LOW SELECTED FAN LOW LOLOW - 11 -
Dimensions 3. Dimensions Ceiling Cassette 1-way ARNU07GTU*2 ARNU09GTU*2 ARNU12GTU*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(7k, 9k, 12k):ø6.35 2 Gas pipe connection Unit size(7k, 9k, 12k):ø12.7 3 Air suction grill 4 Air discharge grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TU 96.5 57.4 168.3 106.8 206.6 275.8 34 500 861 1012 1,100 881(Air outlet Hole) 88 453 320.5 27 (Panel Name: PT-UUC) - 12 -
Dimensions Ceiling Cassette 1-way ARNU07GTU*2 ARNU09GTU*2 ARNU12GTU*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(7k, 9k, 12k):ø6.35 2 Gas pipe connection Unit size(7k, 9k, 12k):ø12.7 3 Air suction grill 4 Air discharge grill Note (Panel Name: PT-UUD) 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TU 46.5 453 354.3 57.4 96.5 168.3 106.8 206.3 275.8 117 34 109.5 861 1012 1100 88 109.5 453 320.5 27 500-13 -
Dimensions 453.8 Ceiling Cassette 1-way ARNU18GTT*2 ARNU24GTT*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(18k):ø6.35, (24k):ø9.52 2 Gas pipe connection Unit size(18k):ø12.7, (24k):ø15.88 3 Air suction grill 4 Air discharge grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TT 20.6 57.4 91 96.1 173.8 65.3 180.6247.5 453.8 31.7 34 500 1176.4 1332 1,420 1,201(Air Outlet Hole) 65.1 (Panel Name: PT-UTC) - 14 -
Dimensions 109.5 Ceiling Cassette 1-way ARNU18GTT*2 ARNU24GTT*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(18k):ø6.35, (24k):ø9.52 2 Gas pipe connection Unit size(18k):ø12.7, (24k):ø15.88 3 Air suction grill 4 Air discharge grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. (Panel Name: PT-UTD) 44 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TT 15.2 57 132 109.5 1176.4 1332 1420 Ø14 65.1 22.3 453.8 335 96.5 34 500 46.5 57.4 31.7 20.6 173.8 97.1 91 65.3 180.6 247.5 453.8-15 -
Ceiling Mounted Cassette Type (2Way) 1. Functions...17 2. Operation Details...18 3. Dimensions...20-16 -
1. Functions Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Maintains the room temperature in accordance with the Setting Temperature. Indoor fan is delayed for 5 seconds at the starting. Jet, High, Med, Low, Lolow Intermittent operation of fan at low speed. The louver can be set at swing up and down automatically. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) Compact and light design Low noise Long life filter High head Drain pump Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature will be reached at 25 C(76 F). To install a unit is very convenient because of smaller size than textile. The most advanced low-noise design. The adoption of turbo fan and round type heat exchanger give the quietest operation. Long life wrinkle(type) and washable and anti-bacteria filter is adopted. Built-in drain pump automatically drains water. A standard drain-head height of up to 700mm (27-9/16inch) is possible. High-Ceiling corresponding Function Central Control(Optional) According to the height of ceiling, the RPM of indoor fan motor is selected to increase air reaching distance. It is operating individually or totally by central control function. - 17 -
Operation Detail 2. Operation Detail (1) The function of main control n Auto Swing Control This function is to swing the louver up and down automatically. n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes INDOOR FAN Selected Low Selected Low Selected Speed Speed Speed Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 2TH (Remo.+Indoor) To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-18 -
n Heating Mode Operation Operation Detail The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor pipe Temperature 36 C(96 F) 33 C(92 F) 25 C(76 F) 20 C(68 F) Room Temperature Thermal Off Thermal On Minimum 3min Thermal OFF Outdoor fan OFF Setting Setting Indoor fan Stop Low Low fan Low fan Low Stop Stop Low speed speed 4 Way Setting fan speed n Hot-start Control Thermal Thermal OFF Indoor Unit mode ST+2 ST+4 2TH To be selected lower temperature To be selected lower temperature (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. mode ST+0 ST+2 The indoor fan does no rotate until the evaporator piping temperature will be reached to 25 C(76 F). The operation diagram is as following. Pipe temperature 35 C(94 F) 30 C(86 F) 27 C(80 F) 25 C(76 F) 22 C(72 F) LO LOW Indoor fan speed COMP OFF LOW SELECTED FAN LOW LOLOW - 19 -
Dimensions 3. Dimensions 830(32-11/16) A B 47.9(1-7/8) 69.5(2-3/4) 550(21-11/16) 275(10-13/16) 889.2(35) 1050(41-5/16) 28.5(1-1/8) 640(25-3/16) 4 3 2 1 TL A 225(8-7/8) B 126.5(5) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com Ceiling Cassette 2-way ARNU183TL*2 ARNU243TL*2 [Unit : mm(inch)] Number Name Descripition 1 Liquid pipe connection (18k) ø6.35(1/4), (24k)ø9.52(3/8) 2 Gas pipe connection (18k) ø12.7(1/2), (24k)ø15.88(5/8) 3 Air suction grill 4 Air discharge grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: TL - 20 -
Ceiling Mounted Cassette Type (4Way) (1) 1. Functions...22 2. Operation Details...23 3. Dimensions...25-21 -
Functions 1. Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Maintains the room temperature in accordance with the Setting Temperature. Indoor fan is delayed for 5 seconds at the starting. Jet, High, Med, Low, Lolow Intermittent operation of fan at low speed. The louver can be set at swing up and down automatically. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) Compact and light design Low noise Long life filter High head Drain pump Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature will be reached at 25 C(76 F). To install a unit is very convenient because of smaller size than textile. The most advanced low-noise design. The adoption of turbo fan and round type heat exchanger give the quietest operation. Long life wrinkle(type) and washable and anti-bacteria filter is adopted. Built-in drain pump automatically drains water. A standard drain-head height of up to 700mm (27-9/16inch) is possible. High-Ceiling corresponding Function Central Control(Optional) Swirl Swing Control According to the height of ceiling, the RPM of indoor fan motor is selected to increase air reaching distance. It is operating individually or totally by central control function. It is operating swirl swing - 22 -
2. Operation Detail Operation Detail (1) The function of main control n Auto Swing Control This function is to swing the louver up and down automatically. n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes INDOOR FAN Selected Low Selected Low Selected Speed Speed Speed Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 To be selected higher temperature To be selected higher temperature 2TH (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5 n Swirl Swing Control Vane 2, 4 is almost vane closed while vane1, 3 is opened. Vane 1, 3 and vane 2,4 turn over minutely Vane 2 Vane 1 Vane 3 Vane 4-23 -
Operation Detail n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor pipe Temperature 36 C(96 F) 33 C(92 F) 25 C(76 F) 20 C(68 F) Room Temperature Thermal Off Thermal On Minimum 3min Thermal OFF Outdoor fan OFF Setting Setting Indoor fan Stop Low Low fan Low fan Low Stop Stop Low speed speed 4 Way Setting fan speed n Hot-start Control Thermal Thermal OFF Indoor Unit mode ST+2 ST+4 2TH To be selected lower temperature To be selected lower temperature (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. mode ST+0 ST+2 The indoor fan does no rotate until the evaporator piping temperature will be reached to 25 C(76 F). The operation diagram is as following. Pipe temperature 35 C(94 F) 30 C(86 F) 27 C(80 F) 25 C(76 F) 22 C(72 F) LO LOW Indoor fan speed COMP OFF LOW SELECTED FAN LOW LOLOW - 24 -
4R20 3. Dimensions Dimensions Ceiling Cassette 4-way ARNU05GTR*2 ARNU07GTR*2 ARNU09GTR*2 ARNU12GTR*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(5k, 7k, 9k, 12k):ø6.35 2 Gas pipe connection Unit size(5k, 7k, 9k, 12k):ø12.7 3 Drain pipe connection VP25(Φ32) 4 Power supply connection 5 Air discharge grill 6 Air suction grill 517 570 517 461 570 69 Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TR B 128 A A ARROW VIEW B ARROW VIEW 84.5 59.5 523 53 48 79 34.5 214 4 2 1 142.5 30 19 3 165 570 63 Branch Duct Connection R35 22.5 376(Inlet Grille) 700 5 6 380(Air outlet hole) 473 700 CEILING OPENING REQUIRED SPACE 500mm or more* 500mm or more* 500mm or more* 500mm or more* - 25 -
4R20 Dimensions Ceiling Cassette 4-way ARNU15GTQ*2 ARNU18GTQ*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(15k, 18k):Ø6.35 2 Gas pipe connection Unit size(15k, 18k):Ø12.7 517 570 517 461 570 68 3 Drain pipe connection VP25(Φ32) 4 Power supply connection 5 Air discharge grill 6 Air suction grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TQ 523 174 30 19 142.5 165 570 63 125 59.5 95.5 48 79 76 94 256 4 2 1 3 Branch Duct Connection R35 22.5 376(Inlet Grille) 700 5 6 380(Air outlet hole) 473 700 A ARROW VIEW B ARROW VIEW B CEILING OPENING A REQUIRED SPACE 500mm or more* 500mm or more* 500mm or more* 500mm or more* - 26 -
Ceiling Mounted Cassette Type (4Way) (2) 1. Functions...28 2. Operation Details...29 3. Dimensions...31-27 -
Functions 1. Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Starting Current Control Indoor Fan Speed Control Soft Dry Operation Mode Airflow Direction Control Maintains the room temperature in accordance with the Setting Temperature. Indoor fan is delayed for 5 seconds at the starting. Jet, High, Med, Low, Lolow Intermittent operation of fan at low speed. The louver can be set at swing up and down automatically. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) Compact and light design Low noise Long life filter High head Drain pump Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature will be reached at 25 C(76 F). To install a unit is very convenient because of smaller size than textile. The most advanced low-noise design. The adoption of turbo fan and round type heat exchanger give the quietest operation. Long life wrinkle(type) and washable and anti-bacteria filter is adopted. Built-in drain pump automatically drains water. A standard drain-head height of up to 700mm (27-9/16inch) is possible. High-Ceiling corresponding Function Central Control(Optional) Swirl Swing Control According to the height of ceiling, the RPM of indoor fan motor is selected to increase air reaching distance. It is operating individually or totally by central control function. It is operating swirl swing - 28 -
2. Operation Detail Operation Detail (1) The function of main control n Auto Swing Control This function is to swing the louver up and down automatically. n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes INDOOR FAN Selected Low Selected Low Selected Speed Speed Speed Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 To be selected higher temperature To be selected higher temperature 2TH (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-29 -
Operation Detail n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor pipe Temperature 36 C(96 F) 33 C(92 F) 25 C(76 F) 20 C(68 F) Room Temperature Thermal Off Thermal On Minimum 3min Thermal OFF Outdoor fan OFF Setting Setting Indoor fan Stop Low Low fan Low fan Low Stop Stop Low speed speed 4 Way Setting fan speed n Hot-start Control Thermal Thermal OFF Indoor Unit mode ST+2 ST+4 2TH To be selected lower temperature To be selected lower temperature (Remo.+Indoor) contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. mode ST+0 ST+2 The indoor fan does no rotate until the evaporator piping temperature will be reached to 25 C(76 F). The operation diagram is as following. Pipe temperature 35 C(94 F) 30 C(86 F) 27 C(80 F) 25 C(76 F) 22 C(72 F) LO LOW Indoor fan speed COMP OFF LOW SELECTED FAN LOW LOLOW - 30 -
4-R20 204 65 40 3. Dimensions Dimensions Ceiling Cassette 4-way ARNU21GTP*2 ARNU24GTP*2 ARNU28GTP*2 684 840 804 787 787 840 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(24k, 28k):ø9.52 2 Gas pipe connection Unit size(24k, 28k):ø15.88 3 Drain pipe connection VP25(Φ32) 4 Power supply connection 5 Air discharge grill 6 Air suction grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TP 671 204 154 99 82 60 2 1 108 60 165 350 840 53.5 4 80 3 Branch Duct Connection 420 25 614(Inlet Grille) 950 41.5 79 5 6 500(Air outlet Hole) 737 950 870-920(CEILING OPENING SPACE) 786(SUSPENSI POSITI) 475 669(SUSPENSI POSITI) 420 393 682(SUSPENSI POSITI) 870-920(CEILING OPENING SPACE) 300 OR LESS 13-ø 3, 3 Hole Ceiling opening B OUTDOOR AIR INTAKE (DIRECT CNECTI) A BRANCH DUCT CNECTI BRANCH DUCT CNECTI 79 50 50 32 13-ø 3, 3 Hole ø70 71 31 92 92 92 92 50 165 165 500mm or more* 10 350 A ARROW VIEW 71 26 62 35 B ARROW VIEW REQUIRED SPACE 500mm or more* 500mm or more* 500mm or more* - 31 -
4-R20 Dimensions 165 350 840 4 3 Ceiling Cassette 4-way ARNU36GTN*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(36k):ø9.52 2 Gas pipe connection Unit size(36k):ø15.88 3 Drain pipe connection VP25(Φ32) 4 Power supply connection 5 Air discharge grill 6 Air suction grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TN 52 100 246 195 2 1 Branch Duct Connection 107 40 78 103 141 246 110 60 840 53.5 80 25 614(Inlet Grille) 950 5 6 500(Air outlet Hole) 737 950 475 420 393 420 300 OR LESS 682(SUSPENSI POSITI) 870-920(CEILING OPENING SPACE) 870-920(CEILING OPENING SPACE) 786(SUSPENSI POSITI) Ceiling opening OUTDOOR AIR INTAKE (DIRECT CNECTI) B A BRANCH DUCT CNECTI BRANCH DUCT CNECTI 669(SUSPENSI POSITI) 100 60 60 43 13-ø 3, 3 Hole 31 35 71 13-ø 3, 3 Hole 92 92 92 92 165 165 10 350 ø70 71 44 80 B ARROW VIEW REQUIRED SPACE 500mm or more* 500mm or more* 500mm or more* 500mm or more* A ARROW VIEW - 32 -
4-R20 Dimensions 2 1 840 4 3 Ceiling Cassette 4-way ARNU42GTM*2 ARNU48GTM*2 (unit : mm) Number Name Descripition 1 Liquid pipe connection Unit size(42k, 48k):ø9.52 2 Gas pipe connection Unit size(42k, 48k):ø15.88 3 Drain pipe connection VP25(Φ32) 4 Power supply connection 5 Air discharge grill 6 Air suction grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: TM 288 237 165 350 53.5 Branch Duct Connection 25 614(Inlet Grille) 950 84 100 5 6 500(Air outlet Hole) 737 950 31 35 71 OUTDOOR AIR INTAKE (DIRECT CNECTI) ø70 71 75 110 13-ø 3, 3 Hole B ARROW VIEW BRANCH DUCTCNECTI 13-ø 3, 3 Hole 92 92 92 92 BRANCH DUCT CNECTI 136 60 60 76 100 870-920(CEILING OPENING SPACE) 786(SUSPENSI POSITI) 475 10 165 165 350 A ARROW VIEW 669(SUSPENSI POSITI) 420 393 420 682(SUSPENSI POSITI) 870-920(CEILING OPENING SPACE) 300 OR LESS Ceiling opening B A REQUIRED SPACE 500mm or more* 500mm or more* 500mm or more* 500mm or more* - 33 -
Art Cool Type(Mirror) 1. Functions...35 2. Operation Details...36 3. Dimensions...43-34 -
Functions 1. Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (THERMISTOR) Room temperature control Maintains the room temperature in accordance with the Setting Temp. Starting Current Control Indoor fan is delayed for 5 sec at the starting. Indoor Fan Speed Control High, Med, Low, CHAOS Operation indication Lamps (LED) Signal Receptor Receives the signals from the remote control.(signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation. Soft Dry Operation Mode Intermittent operation of fan at low speed. Sleep Mode Auto Control The fan is switched to low(cooling), med(heating) speed. The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours. Natural Air Control by CHAOS Logic The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed. Airflow Direction Control The louver can be set at the desired position or swing up and down automatically. Defrost(Deice) control (Heating) Both the indoor and outdoor fan stops during defrosting. Hot-start Control (Heating) The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28 C(82 F). - 35 -
Operation Details 2. Operation Details Function of Controls DISPLAY 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 (on/off) and in sleep timer mode, off when timer mode is completed or canceled Defrost Indicator Off except when hot start during heating mode operation or while in defrost control. Plasma Indicator On while in plasma mode, off while plasma mode is canceled. Auto restart Indicator On while auto restart mode, off while auto restart mode is canceled. Auto restart In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. If your want to use this operation, press the Auto Restart Button. Power(Forced Operation) Operation starts, when this button is pressed and stops when you press the button again. n Cooling Mode Operation When the intake air temperature reaches 0.5 C(33 F) below the setting temp, the compressor and the outdoor fan stop. When it reaches 0.5 C(33 F) above the setting temp, they start to operate again. Compressor Temp=> Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp-0.5 C(33 F) While in compressor running, operating with the airflow speed set by the remote controller. While in compressor not running, operating with the low airflow speed regardless of the setting. n 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 according to the intake air temperature. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp < 26 C(78 F) => Intake Air Temp-1 C(34 F) 18 C(64 F) Intake Air Temp < 24 C(76 F) => Intake Air Temp-0.5 C(33 F) Intake Air Temp < 18 C(64 F) => 18 C(64 F) While in compressor off, the indoor fan repeats low airflow speed and pause. While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification operation and 4-min compressor off repeat Compressor Temp. => Setting Temp+0.5 C(33 F) Compressor OFF Temp. => Setting Temp-0.5 C(33 F) In 10-min dehumidification operation, the indoor fan operates with the low airflow speed. n Heating Mode Operation - 36 -
Operation Details When the intake air Temp. reaches Compressor OFF Temp., the compressor is turned off. When the intake air Temp. reaches Compressor Temp., the compressor is turned on. Themo Temp. => Setting Temp. +2 C(36 F) Themo OFF Temp. => Setting Temp.+4 C(39 F) While in compressor on, when above 38 C(100 F), it operates with setting airflow speed (while in sleep mode, with the medium airflow speed). While in compressor off, the indoor fan is off when the indoor pipe temp is below 33 C (92 F), when above 35 C(94 F), it operates with the low airflow speed. While in defrost control, both of the indoor and outdoor fans are turned off. n Defrost Control While in heating mode operation in order to protect outdoor unit from freezing, reversed to cooling cycle to defrost of the outdoor unit. n Fuzzy Operation (Outdoor unit C/O Model) According to the temperature set by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp < 26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp<18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature n 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. When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows. 24 C(76 F) Inatake Air Temp => Fuzzy Operation for Cooling 21 C(70 F) Inatake Air Temp<24 C(76 F) => Fuzzy Operation for Dehumidification Inatake Air Temp<21 C(70 F) => Fuzzy Operation for Heating If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated. - 37 -
Operation Details 1) Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp. => Setting Temp+0.5 C(33 F) Compressor OFF Temp. => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp < 26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp<18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature. 2) Fuzzy Operation for Dehumidification According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp. => Setting Temp+0.5 C(33 F) Compressor OFF Temp. => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp < 26 C(78 F)=> Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp < 18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation. - 38 -
Operation Details 3) Fuzzy Operation for Heating According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3 C(37 F) or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor Temp => Setting Temp + 2 C(36 F) Compressor OFF Temp => Setting Temp + 4 C(39 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 20 C(68 F) Intake Air Temp => Intake Air Temp + 0.5 C(33 F) Intake Air Temp < 20 C(68 F) => 20 C(68 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature. n Airflow Speed Selection The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speed selection key on the remote controller. n On-Timer Operation When the set time is reached after the time is input by the remote controller, the appliance starts to operate. The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached. If the appliance is operating at the time set by the timer, the operation continues. n Off-Timer Operation When the set time is reached after the time is input by the remote controller, the appliance stops operating. The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. If the appliance is on pause at the time set by the timer, the pause continues. - 39 -
Operation Details n 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. n Sleep Timer Operation When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while in appliance operation, the operation of the appliance stops. While the appliance is on pause, the sleep timer mode cannot be input. While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature increases by 1 C(34 F) After another 30 min elapse, it increases by 1 C(34 ) again. When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to the low. When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to the medium. n Chaos Swing Mode By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to the desired direction. n Chaos Natural Wind Mode When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the airflow mode is operated for 2~15 sec randomly by the Chaos Simulation. n Jet Cool Mode Operation (Outdoor unit C/O Model) If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates. In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation. In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18 C(64 F). When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority. When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further. n Jet Cool Mode Operation (Outdoor unit H/P Model) While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated. In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation. In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18 C(64 F). When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority. When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further. n Auto Restarting Operation When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. Operation Mode that is kept on the memory - 40 -
Operation Details - State of Operation /OFF - Operation Mode/Setting Temp/Selected Airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour) n Forced Operation (Outdoor unit C/O Model) To operate the appliance by force in case that the remote controller is lost, the forced operation button is on the main unit of the appliance to operate the appliance in the standard conditions. Press the forced operation button, the forced operation is carried out. Press the forced operation button once again to stop operation. The forced operation is carried out in cooling mode with the setting temperature 22 C(72 F) and the high speed of airflow. n Forced Operation (Outdoor unit H/P Model) To operate the appliance by force in case that the remote controller is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions. Press the forced operation button, the forced operation is carried out. Press the forced operation button once again to stop operation. In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operation condition is set according to the intake air temperature as follows. 24 C(76 F) Intake Air Temp => Cooling Mode Operation, 22 C(72 F), High Speed 21 C(70 F) Intake Air Temp < 24 C(76 F) => Dehumidification Operation, 23 C(74 F), High Speed Intake Air Temp < 21 C(70 F) => Heating Mode Operation, 24 C(76 F), High Speed n Test Operation Control To check the condition of the installation when installing the appliance, the appliance is operated at cooling mode, high speed of airflow, compressor-on for 18 min without controlling the room temperature. After supplying power to the main body, keep pressing the forced operation button for about 3 seconds. While in test operation, a key can be input by the remote controller. When a key (operation start/stop, operation mode selection, airflow speed selection, temperature control, Jet Cool) is input by the remote controller, the test operation is canceled and the appliance is operated according to the setting by the remote controller. n Protection of the evaporator pipe from frosting In the temperrature of the indoor pipe is below 0 C(32 F) after 7 minutes from starting the compressor, the compressor and outdoor fan are stopped, and 3 minutes delay of operating of the compressor, when the temperature of the indoor pipe is over 7 C(45 F), the compressor and the outdoor fan are reoperated. Outdoor fan motor stops when indoor pipe temperature is blow 3 C(37 F) and restarts at the pipe temperature above 6 C(43 F) or after 90 seconds, if the pipe temperature does not rise to 6 C(43 F), outdoor fan motor runs continuously at even below 3 C(37 F). - 41 -
Operation Details n 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, the long beep sounds. n 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. - The function is to be stopped while it is operating with selecting the function. When an air cleaner function is selected during operation off - The function will be only operated. When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again. - 42 -
3. Dimensions Dimensions 915(36) ART COOL Mirror ARNU073SE*2 ARNU093SE*2 ARNU123SE*2 ARNU153SE*2 [Unit : mm(inch)] Model W H D ARNU073SE*2 ARNU093SE*2 ARNU123SE*2 ARNU153SE*2 915 (36) 282 (11-1/8) 169 (5-5/8) [Unit : mm(inch)] Number Name Descripition Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: SE 282(11-1/8) 53(2-1/16) 282(11-1/8) H 2 W 1 165(6-1/2) 169(5-5/8) 51(2-1/16) 567(22-3/8) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com D 1 Air discharge grill 2 Air suction grill 265(10-1/2) - 43 -
Dimensions 3 1 2 4 (unit : mm) No. Part Name Remark 1 2 3 4 5 Front panel Display & signal receiver Air suction grille Knockout hole Installation plate Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 299 48 281 93 10 63 1107 804 58 122 72 200 53 ART COOL Mirror ARNU18GS8*2 ARNU24GS8*2 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: S8-44 -
ArtCoolGallery 1. Functions...46 2. Operation Details...47 3. Dimensions...54-45 -
Functions 1. Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (THERMISTOR) Room temperature control Maintains the room temperature in accordance with the Setting Temp. Starting Current Control Indoor fan is delayed for 5 sec at the starting. Indoor Fan Speed Control High, Med, Low, CHAOS Operation indication Lamps (LED) Signal Receptor Receives the signals from the remote control.(signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation. Soft Dry Operation Mode Intermittent operation of fan at low speed. Sleep Mode Auto Control The fan is switched to low(cooling), med(heating) speed. The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours. Natural Air Control by CHAOS Logic The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed. Airflow Direction Control The louver can be set at the desired position or swing up and down automatically. Defrost(Deice) control (Heating) Both the indoor and outdoor fan stops during defrosting. Hot-start Control (Heating) The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28 C(82 F). - 46 -
Operation Details 2. Operation Details Function of Controls DISPLAY 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 (on/off) and in sleep timer mode, off when timer mode is completed or canceled Defrost Indicator Off except when hot start during heating mode operation or while in defrost control. Plasma Indicator On while in plasma mode, off while plasma mode is canceled. Auto restart Indicator On while auto restart mode, off while auto restart mode is canceled. Auto restart In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. If your want to use this operation, press the Auto Restart Button. Power(Forced Operation) Operation starts, when this button is pressed and stops when you press the button again. n Cooling Mode Operation When the intake air temperature reaches 0.5 C(33 F) below the setting temp, the compressor and the outdoor fan stop. When it reaches 0.5 C(33 F) above the setting temp, they start to operate again. Compressor Temp=> Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp-0.5 C(33 F) While in compressor running, operating with the airflow speed set by the remote controller. While in compressor not running, operating with the low airflow speed regardless of the setting. - 47 -
Operation Details n 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 according to the intake air temperature. 26 C(78 F) Intake Air Temp => 25 C 24 C(76 F) Intake Air Temp < 26 C(78 F) => Intake Air Temp-1 C 18 C(64 F) Intake Air Temp < 24 C(76 F) => Intake Air Temp-0.5 C(33 F) Intake Air Temp < 18 C(64 F) => 18 C(64 F) While in compressor off, the indoor fan repeats low airflow speed and pause. While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification operation and 4-min compressor off repeat Compressor Temp. => Setting Temp+0.5 C(33 F) Compressor OFF Temp. => Setting Temp-0.5 C(33 F) In 10-min dehumidification operation, the indoor fan operates with the low airflow speed. n Heating Mode Operation When the intake air Temp. reaches Compressor OFF Temp., the compressor is turned off. When the intake air Temp. reaches Compressor Temp., the compressor is turned on. Themo Temp. => Setting Temp. +2 C(36 F) Themo OFF Temp. => Setting Temp.+4 C(39 F) While in compressor on, when above 38 C(100 F), it operates with setting airflow speed (while in sleep mode, with the medium airflow speed). While in compressor off, the indoor fan is off when the indoor pipe temp is below 33 C(92 F), when above 35 C(94 F), it operates with the low airflow speed. While in defrost control, both of the indoor and outdoor fans are turned off. n Defrost Control While in heating mode operation in order to protect outdoor unit from freezing, reversed to cooling cycle to defrost of the outdoor unit. n Fuzzy Operation (Outdoor unit C/O Model) According to the temperature set by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp<26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp<18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temper- - 48 -
Operation Details ature n 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. When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows. 24 C(76 F) Inatake Air Temp => Fuzzy Operation for Cooling 21 C(70 F) Inatake Air Temp<24 C(76 F) => Fuzzy Operation for Dehumidification Inatake Air Temp<21 C(70 F) => Fuzzy Operation for Heating If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated. 1) Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp<26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp < 18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature. 2) Fuzzy Operation for Dehumidification According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5 C or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) - 49 -
Operation Details At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp<26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp < 18 C (64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation. 3) Fuzzy Operation for Heating According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3 C(37 F) or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor Temp => Setting Temp + 2 C(36 F) Compressor OFF Temp => Setting Temp + 4 C(39 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 20 C(68 F) Intake Air Temp => Intake Air Temp + 0.5 C(33 F) Intake Air Temp < 20 C(68 F) => 20 C(68 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature. n Airflow Speed Selection The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speed selection key on the remote controller. n On-Timer Operation When the set time is reached after the time is input by the remote controller, the appliance starts to operate. The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached. If the appliance is operating at the time set by the timer, the operation continues. n Off-Timer Operation When the set time is reached after the time is input by the remote controller, the appliance stops operating. The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. If the appliance is on pause at the time set by the timer, the pause continues. - 50 -
n Off-Timer <=> On-Timer Operation Operation Details 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. n Sleep Timer Operation When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while in appliance operation, the operation of the appliance stops. While the appliance is on pause, the sleep timer mode cannot be input. While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature increases by 1 C(34 F) After another 30 min elapse, it increases by 1 C(34 F) again. When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to the low. When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to the medium. n Chaos Swing Mode By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to the desired direction. n Chaos Natural Wind Mode When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the airflow mode is operated for 2~15 sec randomly by the Chaos Simulation. n Jet Cool Mode Operation (Outdoor unit C/O Model) If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates. In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation. In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18 C(64 F) When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority. When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further. n Jet Cool Mode Operation (Outdoor unit H/P Model) While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated. In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation. In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18 C(64 F) When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority. When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further. n Auto Restarting Operation When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. Operation Mode that is kept on the memory - 51 -
Operation Details - State of Operation /OFF - Operation Mode/Setting Temp/Selected Airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour) n Forced Operation (Outdoor unit C/O Model) To operate the appliance by force in case that the remote controller is lost, the forced operation button is on the main unit of the appliance to operate the appliance in the standard conditions. Press the forced operation button, the forced operation is carried out. Press the forced operation button once again to stop operation. The forced operation is carried out in cooling mode with the setting temperature 22 C(72 F) and the high speed of airflow. n Forced Operation (Outdoor unit H/P Model) To operate the appliance by force in case that the remote controller is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions. Press the forced operation button, the forced operation is carried out. Press the forced operation button once again to stop operation. In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operation condition is set according to the intake air temperature as follows. 24 C(76 F) Intake Air Temp => Cooling Mode Operation, 22 C(72 F), High Speed 21 C(70 F) Intake Air Temp < 24 C(76 F) => Dehumidification Operation, 23 C(74 F), High Speed Intake Air Temp < 21 C(70 F) => Heating Mode Operation, 24 C(76 F), High Speed n Test Operation Control To check the condition of the installation when installing the appliance, the appliance is operated at cooling mode, high speed of airflow, compressor-on for 18 min without controlling the room temperature. After supplying power to the main body, keep pressing the forced operation button for about 3 seconds. While in test operation, a key can be input by the remote controller. When a key (operation start/stop, operation mode selection, airflow speed selection, temperature control, Jet Cool) is input by the remote controller, the test operation is canceled and the appliance is operated according to the setting by the remote controller. n Protection of the evaporator pipe from frosting In the temperrature of the indoor pipe is below 0 C(32 F) after 7 minutes from starting the compressor, the compressor and outdoor fan are stopped, and 3 minutes delay of operating of the compressor, when the temperature of the indoor pipe is over 7 C(45 F), the compressor and the outdoor fan are reoperated. Outdoor fan motor stops when indoor pipe temperature is blow 3 C(37 F) and restarts at the pipe temperature above 6 C or after 90 seconds, if the pipe temperature does not rise to 6 C(43 F), outdoor fan motor runs continuously at even below 3 C(37 F). - 52 -
Operation Details n 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, the long beep sounds. n 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. - The function is to be stopped while it is operating with selecting the function. When an air cleaner function is selected during operation off - The function will be only operated. When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again. - 53 -
Dimensions 3. Dimensions 1 2 Fix Hole W D H Pipe Hole 500(19-5/8) 1 Hanger Hole LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 1 ART COOL Gallery ARNU073SF*2 ARNU093SF*2 ARNU123SF*2 [Unit : mm(inch)] Model W H D ARNU073SF*2 ARNU093SF*2 ARNU123SF*2 600 (23-5/8) 600 (23-5/8) 146 (5-11/16) [Unit : mm(inch)] Number Name Descripition 1 Air discharge grill 2 Air suction grill Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: SF 525(20-5/8) - 54 -
Ceiling Concealed Duct Type (Low static) 1. Funtions...56 2. Operation Details...57 3. Dimensions...60-55 -
Functions 1. Funtions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Maintains the room temperature in accordance with the Setting Temperature. Starting Current Control Indoor fan is delayed for 5 seconds at the starting. Indoor Fan Speed Control High, Med, Low Soft Dry Operation Mode Intermittent operation of fan at low speed. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) High head height Drain pump Central Control(Optional) Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature reaches 25 C(76 F). A standard drain-head height of up to 700mm(27-9/16inch) is possible. It is operating individually or totally by central control function. - 56 -
Operation Details 2. Operation Details (1) The function of main control n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following. Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN Low Low fan speed fan speed fan speed COMPRESSOR OFF OFF Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 2TH (Remo.+Indoor) To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-57 -
Operation Details n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40 C(104 F) Heat-Exchanger temperature T ST T LT A T Off T On Intake Air Temperature Setting Temperature +3 C(37 F) (Thermal OFF) 3min B Low fan during 10sec Setting Temperature (Thermal ) 1min Minimum 3min 1min Thermal Outdoor fan Indoor fan 4way valve Off Low Low Setting fan spped Low Setting fan spped Low OFF OFF C Off Off Low Setting fan spped Compressor-off interval : - A While the indoor Heat-Exchanger temperature is higher than 40 C(104 F), fan operates at low speed, when it becomes lower than 40 C(104 F) fan stops. - B For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. - C To be operated "Low" except initial Hotstart operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST High Static Low Static Convertible BH BG BR B1 B2 CE CF VE VJ 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 26 C(78 F) 26 C(78 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 27 C(80 F) 27 C(80 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 28 C(82 F) 28 C(82 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 30 C(86 F) 30 C(86 F) - 58 -
Operation Details n Hot-Start Control The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 C(86 F). The operation diagram is as following. Indoor unit Heat-Exchanger temperature Hotstart Off Hotstart On 1 min 1 min Thermal Outdoor fan Indoor fan 4way Valve Off Low Setting fan speed Off Low Setting fan speed Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation - 59 -
Dimensions 3. Dimensions A Ceiling Concealed Duct (Low Static) ARNU073B1G2 ARNU093B1G2 ARNU123B1G2 ARNU153B1G2 ARNU183B2G2 ARNU243B2G2 Number Name [Unit : mm(inch)] Descripition 1 Liquid pipe connection Unit size(7k,9k,12k,18k):ø6.35(1/4) Unit size(24k):ø9.52(3/8) 2 Gas pipe connection Unit size(7k,9k,12k,18k):ø12.7(1/2) Unit size(24k):ø15.88(5/8) 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: B1/B2 575(22-5/8) 383(15-1/16) 14(1/2) 161(6-5/16) D 190(7-7/16) 154(6) 18(3/4) 18(3/4) B 5 13(1/2) 190(7-7/16) 65(2-1/2) 60(2-3/8) C LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 1 2 [Unit : mm(inch)] ARNU073B1G2 ARNU093B1G2 ARNU123B1G2 ARNU153B1G2 A B C D 820 (32-5/16) 728 (28-11/16) 856 (33-11/16) 794 (31-5/16) ARNU183B2G2 ARNU243B2G2 1100 (43-5/16) 1008 (39-11/16) 1131 (44-9/16) 1072 (42-3/16) 24(11/12) 277(10-7/8) 216(8-1/2) 3 6 4-60 -
Ceiling Concealed Duct Type (Built in) 1. Funtions...62 2. Operation Details...63 3. Dimensions...66-61 -
Functions 1. Funtions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Maintains the room temperature in accordance with the Setting Temperature. Starting Current Control Indoor fan is delayed for 5 seconds at the starting. Indoor Fan Speed Control High, Med, Low Soft Dry Operation Mode Intermittent operation of fan at low speed. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) High head height Drain pump Central Control(Optional) Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature reaches 25 C(76 F). A standard drain-head height of up to 700mm(27-9/16inch) is possible. It is operating individually or totally by central control function. - 62 -
Operation Details 2. Operation Details (1) The function of main control n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following. Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN Low Low fan speed fan speed fan speed COMPRESSOR OFF OFF Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 2TH (Remo.+Indoor) To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-63 -
Operation Details n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40 C(104 F) Heat-Exchanger temperature T ST T LT A T Off T On Intake Air Temperature Setting Temperature +3 C(37 F) (Thermal OFF) 3min B Low fan during 10sec Setting Temperature (Thermal ) 1min Minimum 3min 1min Thermal Outdoor fan Indoor fan 4way valve Off Low Low Setting fan spped Low Setting fan spped Low OFF OFF C Off Off Low Setting fan spped Compressor-off interval : - A While the indoor Heat-Exchanger temperature is higher than 40 C(104 F), fan operates at low speed, when it becomes lower than 40 C(104 F) fan stops. - B For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. - C To be operated "Low" except initial Hotstart operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST High Static Low Static Convertible BH BG BR B1 B2 CE CF VE VJ 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 26 C(78 F) 26 C(78 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 27 C(80 F) 27 C(80 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 28 C(82 F) 28 C(82 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 30 C(86 F) 30 C(86 F) - 64 -
Operation Details n Hot-Start Control The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 C(86 F). The operation diagram is as following. Indoor unit Heat-Exchanger temperature Hotstart Off Hotstart On 1 min 1 min Thermal Outdoor fan Indoor fan 4way Valve Off Low Setting fan speed Off Low Setting fan speed Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation - 65 -
Dimensions 3. Dimensions With Suction Grille With Suction Grille & Suction Canvas B3/B4 6 190(7-7/16) 65(2-1/2) 60(2-3/8) Ceiling Concealed Duct (Built in) ARNU073B3G2+PBSGB30(Accessory), PBSC30(Accessory) ARNU093B3G2+PBSGB30(Accessory), PBSC30(Accessory) ARNU123B3G2+PBSGB30(Accessory), PBSC30(Accessory) ARNU153B3G2+PBSGB30(Accessory), PBSC30(Accessory) ARNU183B4G2+PBSGB40(Accessory), PBSC40(Accessory) ARNU243B4G2+PBSGB40(Accessory), PBSC40(Accessory) A_1 With Suction Grille 4 B_2 A_2 C_2 A_3 B_3 With Suction Grille & Suction Canvas Btu/h A_1 7,9,12k 820(32-5/16) 18,24k 1100(43-5/16) C_3 500(19-11/16)(Max) 190(7-7/16) 250(9-13/16) 190(7-7/16) 575(22-5/8) 388(15-1/4) 618(24-5/16) 388(15-1/4) 24(11/12) 277(10-7/8) 216(8-1/2) 2 1 3 5 A_2 B_2 C_2 PBSGB30 910(35-13/16) 359(14-1/8) 56(2-3/16) PBSGB40 1188(46-13/16) 359(14-1/8) 56(2-3/16) A_3 B_3 C_3 PBSC30 821(32-5/16) 274(10-11/16) 42~250(1-9/16~9-13/16) PBSC40 1100(43-5/16) 274(10-11/16) 42~250(1-9/16~9-13/16) Note [Unit : mm(inch)] Number Name Descripition 1 Liquid pipe connection Unit size(7k,9k,12k,18k):ø6.35(1/4) Unit size(24k):ø9.52(3/8) 2 Gas pipe connection Unit size(7k,9k,12k,18k):ø12.7(1/2) Unit size(24k):ø15.88(5/8) 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: B3/B4-66 -
Ceiling Concealed Duct Type (High Static) 1. Funtions...68 2. Operation Details...69 3. Dimensions...72-67 -
Funtion 1. Funtions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Maintains the room temperature in accordance with the Setting Temperature. Starting Current Control Indoor fan is delayed for 5 seconds at the starting. Indoor Fan Speed Control High, Med, Low Soft Dry Operation Mode Intermittent operation of fan at low speed. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) High head height Drain pump Central Control(Optional) Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature reaches 25 C(76 F) A standard drain-head height of up to 700mm(27-9/16inch) is possible. It is operating individually or totally by central control function. - 68 -
Operation Details 2. Operation Details (1) The function of main control n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following. Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN Low Low fan speed fan speed fan speed COMPRESSOR OFF OFF - 69 -
Operation Details n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40 C(104 F) Heat-Exchanger temperature T ST T LT A T Off T On Intake Air Temperature Setting Temperature +3 C(37 F) (Thermal OFF) 3min B Low fan during 10sec Setting Temperature (Thermal ) 1min Minimum 3min 1min Thermal Outdoor fan Indoor fan 4way valve Off Low Low Setting fan spped Low Setting fan spped Low OFF OFF C Off Off Low Setting fan spped Compressor-off interval : - A While the indoor Heat-Exchanger temperature is higher than 40 C(104 F), fan operates at low speed, when it becomes lower than 40 C(104 F) fan stops. - B For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. - C To be operated "Low" except initial Hotstart operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST High Static Low Static Convertible BH BG BR B1 B2 CE CF VE VJ 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 26 C(78 F) 26 C(78 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 27 C(80 F) 27 C(80 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 28 C(82 F) 28 C(82 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 30 C(86 F) 30 C(86 F) - 70 -
Operation Details n Hot-Start Control The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 C(86 F). The operation diagram is as following. Indoor unit Heat-Exchanger temperature Hotstart Off Hotstart On 1 min 1 min Thermal Outdoor fan Indoor fan 4way Valve Off Low Setting fan speed Off Low Setting fan speed Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation - 71 -
Dimensions 3. Dimensions LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com Ceiling Concealed Duct (High Static) 70(2-3/4) ARNU073BHA2 ARNU093BHA2 ARNU123BHA2 ARNU153BHA2 ARNU183BHA2 ARNU243BHA2 48(1-7/8) 52(2-1/16) 29(1-1/8) 51(2-1/16) 101(3-15/16) 31(1-3/13) 123(4-13/16) 140(5-9/16) 165(6-7/13) 260(10-1/4) [Unit : mm(inch)] Number Name Descripition 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction Unit size(7k,9k,12k,18k):ø6.35(1/4) Unit size(24k):ø9.52(3/8) Unit size(7k,9k,12k,18k):ø12.7(1/2) Unit size(24k):ø15.88(5/8) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: BH 355(14) 450(17-11/16) 100(3-15/16) 50(1-15/16) 4 745(29-3/8) 115(4-1/2) 6 49(15/16) 932(36-11/16) 24(15/16) 133(5-1/4) 355(14) 47(1-7/8) 47(1-7/8) 21(7/8) 87(3-7/16) 750(29-1/2) 30(1-3/16) 5 882(34-3/4) 108(4-3/13) 65(2-9/16) 450(17-11/16) 450(17-11/16) 260(10-1/4) 158(6-1/4) 75(2-15/16) 106 (4-1/8) 127(5) 175(6-7/8) 20(3/4) 114(4-1/2) 64(2-1/2) 243(9-9/16) 212(8-3/8) 243(9-9/16) 119(4-11/16) 882(34-3/4) 1 2 3 224(8-7/8) 60(2-3/8) R37.5-72 -
Dimensions 1,230(48-7/16) 49(15/16) 87(3-7/16) 29(1-3/8) 75(2-15/16) 830(32-11/16) 5 Ceiling Concealed Duct (High Static) ARNU283BGA2 ARNU363BGA2 ARNU423BGA2 51(2-1/16) 102(4) 32(1-3/13) 261(10-1/4) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: BG 87(3-7/16) 23(15/16) 1,182(46-5/8) 113(4-7/16) 158(6-1/4) 232(1-1/4) 243(9-9/16) 232(1-1/4) 243(9-9/16) 232(1-1/4) 1,182(46-1/2) 450(17-11/16) 298(11-11/16) 186(7-5/16) 355(14) 450(17-11/16) 100(3-15/16) 50(1-15/16) 122(4-13/16) 140(5-9/16) 53(2-1/16) 47(1-7/8) 165(6-7/13) 1,043(41) 115(4-1/2) 4 6 108(4-3/13) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 1 2 3 [Unit : mm(inch)] Number Name Descripition 1 Liquid pipe connection Unit size(28k,36k,42k):ø9.52(3/8) 2 Gas pipe connection Unit size(28k,36k,42k):ø15.88(5/8) 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction 224(8-7/8) 220(8-5/8) 20(3/4) 152(5-7/8) ø100 60(2-3/8) - 73 -
Dimensions Ceiling Concealed Duct (High Static) ARNU483BRA2 101(3-15/16) 83(3-1/4) 115(4-9/16) 26(1) [Unit : mm(inch)] Number Name Descripition 1 Liquid pipe connection Unit size(48k):ø9.52(3/8) 2 Gas pipe connection Unit size(48k):ø15.88(5/8) 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction 72(2-13/16) 221(8-3/4) 123(4-13/16) 135(5-5/16) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: BR 477(18-3/4) 590(23-3/16) 90(3-9/16) 122(4-13/16) 144(5-11/16) 4 1,092(43) 120(4-3/4) 6 1,284(50-9/16) 1,230(48-7/16) 1 1,230(48-7/16) 190(7-7/16) 260(10-1/4) 590(23-3/16) 56(2-3/16) 50(1-15/16) 118(4-5/8) 1,004(39-9/16) 5 114(4-7/16) 32(1-3/13) 185(7-1/4) 168(6-5/8) 241(9-1/2) 279(11) 241(9-1/2) 279(11) 215(8-1/2) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 2 3 380(15) 140(5-9/16) 312(12-1/4) 303(12) 25(1) 198(7-3/4) 60(2-3/8) R60-74 -
Dimensions 1,622(63-11/13) 1,562(61-7/13) Ceiling Concealed Duct (High Static) URNU763B8A2 URNU963B8A2 1 Liquid pipe connection 2 Gas pipe connection 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction [Unit : mm(inch)] Descripition Unit size(76k,96k):ø9.52(3/8) Unit size(76k):ø19.05(3/4) Unit size(96k):ø22.2(7/8) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: B8 688(27) 64(2-7/13) 30(1-3/16) 560(22) 688(27) 1,220(48) 329(12-15/16) 320(12-5/8) 329(12-15/16) 318(12-7/13) 460(18-1/13) 293(11-7/13) 70(2-3/4) 120(4-3/4) 99(3-7/8) 140(5-9/16) 1,396(54-15/16) 115(4-9/16) 460(18-1/13) 161 (6-3/8) 290(11-7/16) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 2 3 1 440(17-3/8) 20(3/4) 122(4-7/8) 70(2-3/4) 64(2-1/2) 60(2-3/8) 5 4 6 1,562(61-1/2) 58(2-1/4) 18(3/4) 358(14) 109(4-1/4) 68(2-5/8) Number Name - 75 -
Wall Mountedd Type 1. Functions...77 2. Operation Details...78 3. Dimensions...85-76 -
Functions 1. Functions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (THERMISTOR) Room temperature control Maintains the room temperature in accordance with the Setting temperature Starting Current Control Indoor fan is delayed for 5 sec at the starting. Indoor Fan Speed Control High, Med, Low, CHAOS Operation indication Lamps (LED) Signal Receptor Receives the signals from the remote control.(signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation. Temperature : Indicate the setting temperature. Soft Dry Operation Mode Intermittent Sleep Mode operation Auto Control of fan at low speed. The fan is switched to low(cooling), med(heating) speed. The Natural unit will Air be Control stopped by after CHAOS 1, 2, Logic 3, 4, 5, 6, 7 hours. The fan is switched to intermittent or irregular operation The Airflow fan speed Direction is automatically Control switched from high to low speed. Defrost(Deice) control (Heating) Both the indoor and outdoor fan stops during defrosting. Hot-start Control (Heating) The indoor fan does not rotate until the evaporator pipe temperature will be reached at 28 C(82 F). The louver can be set at the desired position or swing up and down automatically. - 77 -
Operation Details 2. Operation Details Function of Controls DISPLAY (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 On while in timer mode (on/off) and in sleep timer mode, off when timer mode is completed or canceled Defrost Indicator Off except when hot start during heating mode operation or while in defrost control. Plasma Indicator On while in plasma mode, off while plasma mode is canceled. Auto restart In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. If your want to use this operation, press the Auto Restart Button. Power(Forced Operation) Operation starts, when this button is pressed and stops when you press the button again. n Cooling Mode Operation When the intake air temperature reaches 0.5 C(33 F) below the setting temp, the compressor and the outdoor fan stop. When it reaches 0.5 C(33 F) above the setting temp, they start to operate again. Compressor Temp=> Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp-0.5 C(33 F) While in compressor running, operating with the airflow speed set by the remote controller. While in compressor not running, operating with the low airflow speed regardless of the setting. - 78 -
n Healthy Dehumidification Mode Operation Details When the dehumidification operation input by the remote controller is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp < 26 C(78 F) => Intake Air Temp-1 C(34 F) 18 C(64 F) Intake Air Temp < 24 C(76 F) => Intake Air Temp-0.5 C(33 F) Intake Air Temp < 18 C(64 F) => 18 C(64 F) While in compressor off, the indoor fan repeats low airflow speed and pause. While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification operation and 4-min compressor off repeat Compressor Temp. => Setting Temp+0.5 C(33 F) Compressor OFF Temp. => Setting Temp-0.5 C(33 F) In 10-min dehumidification operation, the indoor fan operates with the low airflow speed. n Heating Mode Operation When the intake air temp reaches +3 Cabove the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Thermo Temp. => Setting Temp. +2 C(36 F) Thermo OFF Temp. => Setting Temp. +4 C(39 F) While in compressor on, when above 38 C(100 F), it operates with or setting airflow speed (while in sleep mode, with the medium airflow speed). While in compressor off, the indoor fan is off when the indoor pipe temp is below 33 C(92 F), when above 35 C(94 F), it operates with the low airflow speed. While in defrost control, both of the indoor and outdoor fans are turned off. n Defrost Control While in heating mode operation in order to protect outdoor unit from freezing, reversed to cooling cycle to defrost the outdoor unit. n Fuzzy Operation (Outdoor unit C/O Model) According to the temperature set by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C (33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. - 79 -
Operation Details 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp<26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp<18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature n 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. When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows. 24 C(76 F) Inatake Air Temp => Fuzzy Operation for Cooling 21 C(70 F) Inatake Air Temp<24 C(76 F) => Fuzzy Operation for Dehumidification Inatake Air Temp<21 C(70 F) => Fuzzy Operation for Heating If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated. 1) Fuzzy Operation for Cooling According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp<26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F)=> Intake Air Temp Intake Air Temp < 18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature. 2) Fuzzy Operation for Dehumidification According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5 C(33 F) or more below the setting temp, the compressor is turned off. When 0.5 C(33 F) or more above the setting temp, the compressor is turned on. Compressor Temp => Setting Temp+0.5 C(33 F) Compressor OFF Temp => Setting Temp+0.5 C(33 F) - 80 -
Operation Details At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26 C(78 F) Intake Air Temp => 25 C(76 F) 24 C(76 F) Intake Air Temp<26 C(78 F) => Intake Air Temp+1 C(34 F) 22 C(72 F) Intake Air Temp<24 C(76 F) => Intake Air Temp+0.5 C(33 F) 18 C(64 F) Intake Air Temp<22 C(72 F) => Intake Air Temp Intake Air Temp < 18 C(64 F) => 18 C(64 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation. 3) Fuzzy Operation for Heating According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3 C(37 F) or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor Temp => Setting Temp. +2 C(36 F) Compressor OFF Temp => Setting Temp. +4 C(39 F) At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 20 C(68 F) Intake Air Temp => Intake Air Temp + 0.5 C(33 F) Intake Air Temp < 20 C(68 F) => 20 C(68 F) When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature. n Airflow Speed Selection The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speed selection key on the remote controller. n On-Timer Operation When the set time is reached after the time is input by the remote controller, the appliance starts to operate. The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached. If the appliance is operating at the time set by the timer, the operation continues. n Off-Timer Operation When the set time is reached after the time is input by the remote controller, the appliance stops operating. The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. If the appliance is on pause at the time set by the timer, the pause continues. - 81 -
Operation Details n 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. n Sleep Timer Operation When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while in appliance operation, the operation of the appliance stops. While the appliance is on pause, the sleep timer mode cannot be input. While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature increases by 1 C(34 F) After another 30 min elapse, it increases by 1 C(34 F) again. When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to the low. When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to the medium. n Chaos Swing Mode By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to the desired direction. n Chaos Natural Wind Mode When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the airflow mode is operated for 2~15 sec randomly by the Chaos Simulation. n Jet Cool Mode Operation (Outdoor unit C/O Model) If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates. In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation. In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18 C(64 F) When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority. During the JET COOL function at any moment, the A/C starts to blow the cool air with side louvers closed at extremely high speed for 30 minutes setting the room temp. automatically to 18 C. n Jet Cool Mode Operation (Outdoor unit H/P Model) While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated. In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation. In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18 C(64 F) When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority. During the JET HEAT function at any moment, the A/C starts to blow the hot air with side louvers closed at extremely high speed for 60 minutes setting the room temp. automatically to 30 C(86 F). n Auto Restarting Operation When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. Operation Mode that is kept on the memory - State of Operation /OFF - 82 -
Operation Details - Operation Mode/Setting Temp/Selected Airflow Speed - Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour) n Forced Operation Operation procedures when the remote control can't be used. The operation will be started if the power button is pressed. If you want to stop operation, re-press the button. Cooling Model Heat pump Model Room Temp. 24 C(76 F) 21 C(70 F) Room Temp. < 24 C(76 F) Room Temp. < 21 C(70 F) Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor Fan Speed High High High High Setting Temperature 22 C(72 F) 22 CC(72 F) 23 C(74 F) 24 C(76 F) While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation. n Test operation During the TEST OPERATI, the unit operates in cooling mode at high speed fan, regardless of room temperature and resets in 18±1 minutes. During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, Press and hold /OFF button 3~5 seconds, then the buzzer sound 1 "beep". If you want to stop the operation, re-press the button. n Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C(32F) in 7 min. after the compressor operates without any pause while in cooling cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting. When the indoor pipe temp is 7 C(45 F) or higher after 3 min. pause of the compressor, the compressor and the outdoor fan is turned on according to the condition of the room temperature. n Buzzer Sounding Operation When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds. When the appliance-pause key is input by the remote control, the long "beep " sounds. When a key is input by the remote control while the slide switch on the main unit of the appliance is on the forced operation position, the error sound "beep-beep-beep-beep-beep-" is made 10 times to indicate that the remote control signal cannot be received. - 83 -
Operation Details n 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. - The function is to be stopped while it is operating with selecting the function. When an air cleaner function is selected during operation off - The function will be only operated. When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B) will be operated again. - 84 -
3. Dimensions Dimensions PIPING/WIRING DIRECTI PIPE AND DRAIN DIMENSI PIPING/WIRING DIRECTI Wall Mounted ARNU07GSE*2 ARNU09GSE*2 ARNU12GSE*2 ARNU15GSE*2 Model ARNU07GSE*2 ARNU09GSE*2 ARNU12GSE*2 ARNU15GSE*2 W H D (unit : mm) 895 282 165 Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. Lower than 2.3m More than 200 mm More than 100 mm Higher than eye-level More than 100 mm 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: SE 265 PIPING DIRECTI 567 Number 1 2 3 4 5 6 7 8 Name Front panel Air discharge Air suction Liquid pipe Gas pipe Drain pipe Right side piping/wiring connection Left side piping/wiring connection (unit : mm) Descripition Ø6.35 Flare connection Ø12.7 Flare connection External dia. Ø17 Required space(unit:mm) - 85 -
Dimensions Wall Mounted ARNU18GS5*2 ARNU24GS5*2 (unit : mm) Model W H D ARNU18GS5*2 ARNU24GS5*2 1090 300 178 Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: S5 281 PIPING/WIRING DIRECTI PIPING DIRECTI 804 PIPE AND DRAIN DIMENSI PIPING/WIRING DIRECTI Number 1 2 3 4 5 6 7 8 Name Front panel Air discharge Air suction Liquid pipe Gas pipe Drain pipe Right side piping/wiring connection Left side piping/wiring connection (unit : mm) Descripition Ø6.35 Flare connection Ø12.7 Flare connection External dia. Ø17 Required space(unit:mm) Lower than 2.3m More than 200 mm More than 100 mm Higher than eye-level More than 100 mm - 86 -
Ceiling & Floor Ceiling Suspended 1. Funtions...88 2. Operation Details...89 3. Dimensions...92-87 -
Function 1. Function Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Starting Current Control Maintains the room temperature in accordance with the Setting Temperature. Indoor fan is delayed for 5 seconds at the starting. Indoor Fan Speed Control High, Med, Low Soft Dry Operation Mode Intermittent operation of fan at low speed. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) High head height Drain pump Central Control(Optional) Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature reaches 25 C(76 F). A standard drain-head height of up to 700mm(27-9/16inch) is possible. It is operating individually or totally by central control function. - 88 -
Operation Details 2. Operation Details (1) The function of main control n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following. Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes INDOOR FAN Selecting Selecting Selecting Low Low fan speed fan speed fan speed COMPRESSOR OFF OFF Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 2TH (Remo.+Indoor) To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-89 -
Operation Details n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40 C(104 F) Heat-Exchanger temperature T ST T LT A T Off T On Intake Air Temperature Setting Temperature +3 C(37 F) (Thermal OFF) 3min B Low fan during 10sec Setting Temperature (Thermal ) 1min Minimum 3min 1min Thermal Outdoor fan Indoor fan 4way valve Off Low Low Setting fan spped Low Setting fan spped Low OFF OFF C Off Off Low Setting fan spped Compressor-off interval : - A While the indoor Heat-Exchanger temperature is higher than 40 C(104 F), fan operates at low speed, when it becomes lower than 40 C(104 F) fan stops. - B For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. - C To be operated "Low" except initial Hotstart operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST High Static Low Static Convertible BH BG BR B1 B2 CE CF VE VJ 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 26 C(78 F) 26 C(78 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 27 C(80 F) 27 C(80 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 28 C(82 F) 28 C(82 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 30 C(86 F) 30 C(86 F) - 90 -
Operation Details n Hot-Start Control The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 C(86 F). The operation diagram is as following. Indoor unit Heat-Exchanger temperature Hotstart Off Hotstart On 1 min 1 min Thermal Outdoor fan Indoor fan 4way Valve Off Low Setting fan speed Off Low Setting fan speed Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation - 91 -
Dimensions 3. Dimensions 587 Ceiling & Floor ARNU09GVEA2 ARNU12GVEA2 (unit : mm) Model W H D ARNU09GVEA2 ARNU12GVEA2 900 490 200 Number Name (unit : mm) Descripition 1 2 3 4 5 6 7 8 9 10 Liquid pipe Gas pipe Suction gille Discharge grille Suspension bracket Right side drain hose hole Left side drain hose hole Wiring connection Piping connection Signal receiver & Operation indicator ø6.35 Flare connection ø12.7 Flare connection Slit hole Slit hole Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. Required space(unit:mm) More than 200mm More than 200mm More than 200mm More than 50mm More than 50mm More than 200mm 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: VE 273-92 -
Dimensions Ceiling Suspended ARNU18GVJA2 ARNU24GVJA2 (unit : mm) Model W H D ARNU18GVJA2 ARNU24GVJA2 950 650 220 Number Name (unit : mm) Descripition 1 2 3 4 5 6 7 8 9 10 11 Liquid pipe Gas pipe Suction gille Discharge grille Suspension bracket Right side drain hose hole Left side drain hose hole Wiring connection Piping connection Right side drain pipe connection Left side drain pipe connection ø6.35 Flare connection ø12.7 Flare connection Slit hole Slit hole Slit hole Slit hole Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. Required space(unit:mm) More than 700 m More than 700mm More than 300mm 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea CHASSIS CODE: VJ - 93 -
Floor Standing Type 1. Function...95 2. Operation Details...96 3. Dimensions...99-94 -
Function 1. Function Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Starting Current Control Maintains the room temperature in accordance with the Setting Temperature. Indoor fan is delayed for 5 seconds at the starting. Indoor Fan Speed Control High, Med, Low Soft Dry Operation Mode Intermittent operation of fan at low speed. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) High head height Drain pump Central Control(Optional) Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. The indoor fan does not rotate until the evaporator piping temperature reaches 25 C(76 F). A standard drain-head height of up to 700mm(27-9/16inch) is possible. It is operating individually or totally by central control function. - 95 -
Operation Details 2. Operation Details (1) The function of main control n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following. Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN Low Low fan speed fan speed fan speed COMPRESSOR OFF OFF Thermal Thermal OFF Indoor Unit mode ST+0.5 ST-0.5 2TH (Remo.+Indoor) To be selected higher temperature To be selected higher temperature contrast Indoor Unit and Remo. contrast Indoor Unit and Remo. Remo. Mode ST+0.5 ST-0.5-96 -
n Heating Mode Operation Operation Details The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40 C(104 F) Heat-Exchanger temperature T ST T LT A T Off T On Intake Air Temperature Setting Temperature +3 C(37 F) (Thermal OFF) 3min B Low fan during 10sec Setting Temperature (Thermal ) 1min Minimum 3min 1min Thermal Outdoor fan Indoor fan 4way valve Off Low Low Setting fan spped Low Setting fan spped Low OFF OFF C Off Off Low Setting fan spped Compressor-off interval : - A While the indoor Heat-Exchanger temperature is higher than 40 C(104 F), fan operates at low speed, when it becomes lower than 40 C(104 F) fan stops. - B For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. - C To be operated "Low" except initial Hotstart operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST High Static Low Static Convertible BH BG BR B1 B2 CE CF VE VJ 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 26 C(78 F) 26 C(78 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 27 C(80 F) 27 C(80 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 28 C(82 F) 28 C(82 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 30 C(86 F) 30 C(86 F) - 97 -
Operation Details n Hot-Start Control The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 30 C(86 F). The operation diagram is as following. Indoor unit Heat-Exchanger temperature Hotstart Off Hotstart On 1 min 1 min Thermal Outdoor fan Indoor fan 4way Valve Off Low Setting fan speed Off Low Setting fan speed Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation - 98 -
Dimensions 3. Dimensions 148.3 (5-13/16) 1067(42) 1 1067(42) 203(7-15/16) <With Case> 148.3 (5-13/16) <Without Case> Floor Standing ARNU073CEA2 ARNU093CEA2 ARNU123CEA2 ARNU153CEA2 ARNU073CEU2 ARNU093CEU2 ARNU123CEU2 ARNU153CEU2 Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: CE 49(15/16) 70(2-3/4) 635(25) 2 978(38-1/2) 794(31-5/16) 13(1/2) 190(7-7/16) 161(6-5/16) 14(1/2) [Unit : mm(inch)] Model W H D ARNU073CEA2 ARNU093CEA2 ARNU123CEA2 ARNU153CEA2 1067 (42) 635 (25) 203 (7-15/16) ARNU073CEU2 ARNU093CEU2 ARNU123CEU2 ARNU153CEU2 978 (38-1/2) 639 (31-1/4) 190 (7-7/16) [Unit : mm(inch)] 639(31-1/4) 6.28 (1/4) 20.4(3/4) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com Number Name Descripition 1 Air discharge grill 2 Air suction grill - 99 -
Dimensions 1 <With Case> 2 <Without Case> Floor Standing ARNU183CFA2 ARNU243CFA2 ARNU183CFU2 ARNU243CFU2 Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: CF 203 (7-15/16) 1345(52-15/16) 49.5(1-15/16) 70(2-3/4) 635(25) 148.3 (5-13/16) 203(7-15/16) 1048.4(41-1/4) 148.3 (5-13/16) 1256(49-7/16 1098(43-1/4) 1072(42-3/16) 109.8(4-5/16) 30(1-3/16) 190(7-7/16) 161(6-5/16) 14(1/2) [Unit : mm(inch)] Model W H D ARNU183CFA2 ARNU243CFA2 1345 (52-15/16) 635 (25) 203 (7-15/16) ARNU183CFU2 ARNU243CFU2 1256 (49-7/16) 639 (31-1/4) 190 (7-7/16) 639(31-1/4) 21.4(1-3/16) 70 (2-3/4) 145 (5-11/16) 81.4(3-3/16) LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com (unit : mm) Number Name Descripition 1 Air discharge grill 2 Air suction grill - 100 -
Vertical Air Handling Unit 1. Funtions...102 2. Operation Details...103 3. Dimensions...107-101 -
Funtions 1. Funtions Indoor Unit Operation /OFF by Remote controller Sensing the Room Temperature Room temperature sensor. (Thermistor) Room temperature control Maintains the room temperature in accordance with the Setting Temperature. Starting Current Control Indoor fan is delayed for 5 seconds at the starting. Indoor Fan Speed Control High, Med, Low Soft Dry Operation Mode Intermittent operation of fan at low speed. Auto Restart Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation mode after power supply. Deice (defrost) control (Heating) Hot-start Control (Heating) Central Control(Optional) Both the indoor and outdoor fan stops during defrosting. Hot start after defrost ends. If the electric heater has been installed, indoor fan continuous will be. The indoor fan does not rotate until the evaporator piping temperature reaches 25 C(76 F) It is operating individually or totally by central control function. - 102 -
Operation Details 2. Operation Details (1) The function of main control n 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 microcontroller control. n Cooling Mode Operation When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote controller and the operation diagram is as following. Intake Air Temperature Thermo. (SET TEMPERATURE +0.5 C(33 F)) Thermo. OFF (SET TEMPERATURE -0.5 C(33 F)) More than More than 3 minutes 3 minutes Selecting Selecting Selecting INDOOR FAN Low Low fan speed fan speed fan speed COMPRESSOR OFF OFF - 103 -
Operation Details n Heating Mode Operation The unit will operate according to the setting by the remote controller and the operation diagram is shown as following. Indoor unit 40C(104F) Heat-Exchanger temperature T ST T LT A T Off T On Intake Air Temperature Setting Temperature +3C(37F) (Thermal OFF) 3min B Low fan during 10sec Setting Temperature (Thermal ) 1min Minimum 3min 1min Thermal Outdoor fan Indoor fan 4way valve Off Low Low Setting fan spped Low Setting fan spped Low OFF OFF C Off Off Low Setting fan spped Compressor-off interval : - A While the indoor Heat-Exchanger temperature is higher than 40C(104F), fan operates at low speed, when it becomes lower than 40C(104F) fan stops. - B For eluminating latent heat-loss, fan operates at low speed for 10 seconds periodically. - C To be operated "Low" except initial Hotstart operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST Vertical Air Handling Unit NJ NK 19 C(66 F) 19 C(66 F) 22 C(72 F) 22 C(72 F) 25 C(76 F) 25 C(76 F) 27 C(80 F) 27 C(80 F) - 104 -
Operation Details n Hot-Start Control The indoor fan does not rotate until the indoor unit Hex-Exchanger temperature reaches 22 (71.6 ). The operation diagram is as following. Indoor unit Heat-Exchanger temperature Hotstart Off Hotstart On 1 min 1 min Thermal Outdoor fan Indoor fan 4way Valve Off Low Setting fan speed Off Low Setting fan speed Initial Hotstart On state Power Off On Operation Off On Cooling operation Heating operation Defrost operation Chassis Hotstart On Hotstart Off T On T Off Low temperature T LT Setting Temperature T ST High Static Low Static Convertible BH BG BR B1 B2 CE CF VE VJ 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 19 C(66 F) 26 C(78 F) 26 C(78 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 22 C(72 F) 27 C(80 F) 27 C(80 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 25 C(76 F) 28 C(82 F) 28 C(82 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 27 C(80 F) 30 C(86 F) 30 C(86 F) - 105 -
Operation Details n Heater Operation The unit will operate according to the setting temperature and the indoor unit Heat-Exchanger temperature. Heater operation diagram is shown as following. Setting temperature (A) A-1 (34 ) A-2 (36 ) Heater Heater OFF Heater Indoor unit Heat-Exchanger temperature 45 (113 ) 42 (108 ) 30 (86 ) 28 (82 ) Heater 2 Heater 1 OFF OFF - 106 -
Dimensions 3. Dimensions LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com Vertical Air Handling Unit ARNU183NJA2 ARNU243NJA2 ARNU303NJA2 ARNU363NJA2 Number Name [Unit : mm(inch)] Descripition 1 Liquid pipe connection Unit size(18k):ø6.35(1/4) Unit size(24k,30k):ø9.52(3/8) 2 Gas pipe connection Unit size(18k):ø12.7(1/2) Unit size(24k,30k):ø15.88(5/8) 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: NJ 254(10) 331(13) 4 41(1-5/8) 40 543(21-3/8) 40(1-9/16) 46(1-13/16) 2 308(12-1/8) 65 (2-9/16) 1236(48-5/8) 117.5(4-5/8) 364(14-5/16) 5 1 40(1-9/16) 3 6 457(18) 432(17) - 107 -
Dimensions 308 (12-1/8) 40 (1-9/16) Vertical Air Handling Unit ARNU423NKA2 ARNU483NKA2 ARNU543NKA2 41 (1-5/8) 40 (1-9/16) 40 (1-9/16) 1400 (55-1/8) 1418 (55-13/16) 65 (2-9/16) 39 (1-9/16) 362 (14-1/4) 118 (4-5/8) Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. LG Electronics USA, HVAC Division 1000 Sylvan Avenue, Englewood Cliffs, NJ 07632 www.lgusa.com / www.lghvac.com 76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lgeaircon.com CHASSIS CODE: NK 635 (25) 430 (16-15/16) 508 (20) 540 (21-1/4) 49 (1-15/16) 4 2 3 5 1 6 [Unit : mm(inch)] Number Name Descripition 1 Liquid pipe connection Unit size(28k,36k,42k):ø9.52(3/8) 2 Gas pipe connection Unit size(28k,36k,42k):ø15.88(5/8) 3 Drain pipe connection 4 Power supply connection 5 Air discharge 6 Air suction 610 (24) 55 (2-3/16) 52 (2-1/16) - 108 -
Part 3 Trouble shooting guide - 109 -
Trouble shooting guide Self-diagnosis function...111-110 -
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 on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table. If more than two troubles occur simultaneously, lower number of error code is first displayed. After error occurrence, if error is released, error LED is also released simultaneously. Error Display 1st,2nd LED of 7-segment indicates error number, 3rd LED indicates unit number. Ex) 211 : No.21 error of master unit 213 : No.21 error of slave2 011 051 : No.105 error of master unit Indoor unit related error Display Title Cause of Error 0 1 - Air temperature sensor of indoor unit Air temperature sensor of indoor unit is open or short 0 2 - Inlet pipe temperature sensor of indoor unit Inlet pipe temperature sensor of indoor unit is open or short 0 3 - Transmission error : wired remote controller indoor unit Failing to receive wired remote controller signal in indoor unit PCB 0 4 - Drain pump Malfunction of drain pump 0 5 - Transmission error : outdoor unit indoor unit Failing to receive outdoor unit signal in indoor unit PCB 0 6 - Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of indoor unit is open or short 0 7 - Different operation mode Operation mode between indoor unit and outdoor unit is different 0 9 - Serial No. In case when the serial number marked oneeprom of Indoor unit is 0 or FFFFFF 1 0 - Poor fan motor operation Disconnecting the fan motor connector/failure of indoor fan motor lock Air temperature sensor of indoor unit is open or short - 111 -
Self-diagnosis function Error No. Error Type Error Point Main Reasons 01 Indoor unit air sensor error 02 Indoor unit pipe inlet sensor error 06 Indoor unit pipe outlet sensor error Indoor unit sensor is open/short 1. Indoor unit PCB wrong connection 2. Indoor unit PCB failure 3. Sensor problem (main reason) n Error diagnosis and countermeasure flow chart Is sensor properly connected to PCB? Yes No Connect properly to PCB Is the resistance value of sensor normal?* Yes No Change the sensor Change the PCB ** In case the value is more than 100kΩ (open) or less than 100Ω (short), Error occurs Refer: Resistance value maybe change according to temperature of temp sensor, It shows according to criteria of current temperature(±5% margin) Normal Air temp sensor: 10 C(50 F) = 20.7kΩ : 25 C(76 F)= 10kΩ : 50 C(122 F)= 3.4kΩ Pipe temp sensor: 10 C(50 F) = 10kΩ : 25 C(76 F)= 5kΩ : 50 C(122 F)= 1.8kΩ CN_PIPE/OUT: Pipe outlet temp sensor CN_PIPE/IN: Pipe inlet temp sensor CN_ROOM: Indoor air temp sensor <Fresh Air Intake Unit> Measure the resistance of outlet pipe temp sensor. <Standard Indoor Unit> - 112 -
Self-diagnosis function Error No. Error Type Error Point Main Reasons 03 No transmission between cabled remote controller & indoor unit The remote controller did not receive the signal from indoor unit during specific time 1. Remote controller fault 2. Indoor unit PCB fault 3. Connector fault, Wrong connection 4. transmission cable problem n Error diagnosis and countermeasure flow chart Does the error happens again if the remote controller is replaced?* No Replace cabled remote controller Yes Does the error occurred when the cable of remote controller is replaced? No Check connection & transmission cable ** Yes Replace indoor unit PCB *** * If there is no remote controller to replace : Use another unitʼs remote controller doing well ** Check cable : Contact failure of connected portion or extension of cable are main cause Check any surrounded noise ( check the distance with main power cable) make safe distance from the devices generate electromagnetic wave *** After replacing indoor unit PCB, do Auto Addressing & input unitʼs address if connected to central controller. (All the indoor units connected should be turned on before Auto Addressing CN-REMO : Remote controller connection The PCB can differ from model to model. Check from the right source. Checking transmission cable connection status - 113 -
Self-diagnosis function Error No. Error Type Error Point Main Reasons 04 Drain pump error Float switch is open due to rising of condensate water level because of drain pump fault or drain pipe clogging 1. Drain pump/float switch fault 2. Improper drain pipe location, clogging of drain pipe 3. Indoor unit PCB fault Error diagnosis and countermeasure flow chart Is the drain pan filled half with condensate water? (half level of float switch)* Yes No Is Float switch short On measuring its resistance? Yes No Replace float switch Replace Indoor PCB or reconnect the connector Is drain pump working? (Sound/drain noise/ contact etc.) Yes No In indoor unit PCB Does the terminal voltage for drain pump has 208/230V output?** Yes No Replace indoor unit PCB Replace Drain Pump Drain pump blocked by foreign particles? Yes Remove it & clean the pump * If the float goes up higher than a half of float switch then the circuit is open & the unit is stopped automatically. - 114 -
Self-diagnosis function float A:Point to check rotating *** Indoor PCB drain pump connector (Check input of 208/230V) (Marked as CN-DPUMP) Float switch connector Float switch Housing (CN-FLOAT) [***] Standard of drain pipe head height / slope MAX 450 700mm(27-9/16inch) - 115 -
Self-diagnosis function Error No. Error Type Error Point Main Reasons 1. Auto addressing is not done 2. transmission cable is not connected 3. Short circuit of transmission cable No signal transmission 4. Indoor unit transmission circuit fault 05 Indoor & Outdoor unit between indoor & outdoor 5. Outdoor unit transmission circuit fault transmission error units. 6. Not enough distance between power and transmission cable? n Error diagnosis and countermeasure flow chart Does all the IDUs show same error code CH05? Yes No Is total number of indoor units connected displayed after auto addressing? END No Replace the PCB of indoor unit displayed error Re-connect after check the transmission cable of indoor unit displayed error** Is outdoor PCB LED blinking? No Check the main power supply at the ODU terminal block? No Replace outdoor PCB after checking Replace TRANS after checking Yes Yes No Is main circuit breaker off? Yes Improper connection of power supply cable Main power supply problem Check the insulation of inverter / constant compressor and replace if required Check the capacity of main circuit breaker and replace if required If all ok, Turn on main circuit breaker Check if the transmission cable is properly connected to indoor / outdoor terminal block?* Yes No Re connect transmission cable Outdoor PCB fault Replace after checking Indoor PCB fault Replace after checking * (Note1) Transmission from IDU is normal if voltage fluctuation(-9v ~ +9V) exists when checking DC voltage of communication terminal between IDU and ODU * If the DC voltage between transmission terminal A, B of indoor unit is fluctuate within (-9V~+9V) then transmission from outdoor unit is normal - 116 -
Self-diagnosis function Error No. Error Type Error Point Main Reasons 06 Indoor unit outlet pipe temperature sensor error Indoor unit outlet pipe temperature sensor open or short Refer to CH02 Error No. Error Type Error Point Main Reasons 07 All Indoor units are not running in same mode The Indoor units started later are operated in different mode from earlier one. 1. Indoor units are in different mode 2. PCB fault 3. cabled remote controller fault j Checking ch07 method IDU doesnʼt operate as Operation mode is flickering at IDU wired remote controller and IDU display window. n Error diagnosis and countermeasure flow chart Is operation mode of outdoor & Indoor units same? No Does error code disappear after set operation mode same?** No Replace Indoor PCB*** Yes Yes END Adjust outdoor main PCB dip switch setting * * Check mode selection setting of wired remote controller. ** Outdoor main PCB dip switch no.5 (Cooling) or no.6 (heating) is in On, different mode operation error may occur because the operation mode is fixed by dip switch setting. Dip switch Setting 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 *** Dissolution method CH07 with remote controller 1) Error removal method : Turn off remote controller by pressing the On/Off button on the cabled remote controller. The error code will be removed automatically after few seconds. With cableless remote controller: Turn off indoor unit, and then turn on by changing the operation mode. The error will disappear. - 117 -
Self-diagnosis function **** After replacing the indoor unit PCB, make sure to be done to do Auto addressing and input the address of central control ***** If ODU Dry Contact function is set, different mode operation error may be occurred because the operation mode is fixed. Error No. Error Type Error Point Main Reasons 09 Indoor unit EEPROM error 1. Error developed in transmission between the micro- processor and the EEPROM on the surface of the PCB. 2. ERROR due to the EEPROM damage n Error diagnosis and countermeasure flow chart - Replace the indoor unit PCB, and then make sure to perform Auto addressing and input the address of central control - 118 -
Self-diagnosis function Error No. Error Type Error Point Main Reasons 10 Indoor unit BLDC fan motor failure Indoor BLDC fan motor feedback signal is absent (for 50 sec.) 1. Motor connector connection fault 2. Indoor PCB fault 3. Motor fault n Error diagnosis and countermeasure flow chart Is connector connection proper? No Connect properly Yes Is fan motor normal?* Yes No Replace indoor unit fan motor Replace indoor unit PCB ** * It is normal when check hall sensor of indoor fan motor as shown below 1 4 5 6 7 Each termainl with the tester Tester Normal resistance(±10%) + - TH chassis TD chassis 1 4 5 4 hundreds kω hundreds kω 6 4 7 4 hundreds kω hundreds kω <Checking connection state of fan motor connector> ** Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control (Notice: The connection of motor connector to PCB should be done under no power supplying to PCB) - 119 -
P/NO : MFL50459505 NOVEMBER, 2010