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38

INSTALLATION OF INDOOR UNIT

ENGLISH

Use round pressure terminals for connections to the power terminal block.

When none are available, follow the instructions below.

- Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power

wiring may cause abnormal heat.)

- When connecting wiring which is the same thickness, do as shown in the figure below.

Round pressure terminal

Power wire

Precautions when laying power wiring

WARNING

Make sure that the screws of the terminal are free from looseness.

!

Summary of Contents for Therma V AHNW16606A3

Page 1: ...med in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly Original instruction Copyright 2017 2018 LG Electronics Inc All Rights Reserved MFL68681810 Rev 04_062218 ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ΕΛΛΗΝΙΚΆ ČEŠTINA NEDERLANDS POLSKI LIMBA ROMÂNĂ ...

Page 2: ...7 Electrical Wiring 40 PIPING AND WIRING FOR OUTDOOR UNIT 40 Refrigerant Piping 41 Preparation for Piping 42 Connecting Pipe to Indoor Unit 42 Connecting Pipe to Outdoor Unit 45 Finalizing 46 Leakage test and Evacuation 48 Electrical Wiring 51 PIPING AND WIRING FOR INDOOR UNIT 51 Water Piping and Water Circuit Connection 54 Water pump Capacity 54 Pressure Drop 55 Performance curve 56 Water Quality...

Page 3: ...k setting 1 109 Tank setting 2 111 Heater priority 112 DHW time setting 113 TH on off Variable heating air 114 TH on off Variable heating water 115 TH on off Variable cooling air 116 TH on off Variable cooling water 117 Pump setting in heating 118 Pump setting in cooling 119 Forced operation 120 CN_CC 121 Pump frequency setting RPM 122 Smart Grid SG 123 Seasonal auto temp 125 Modbus Address 126 CN...

Page 4: ...oor unit Installation location constraints on installation site etc Chapter 5 Installation about the indoor unit Installation location constraints on installation site etc Constrains when accessories are installed Chapter 6 How to perform piping for refrigerant and wiring at the outdoor unit Refrigerant pipe connection between the indoor unit and the outdoor unit Electrical wiring at the outdoor u...

Page 5: ...circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center There is risk of fire or electric shock Always ground the unit There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock R...

Page 6: ...unit on a defective installation stand It may cause injury accident or damage to the unit Be sure the installation area does not deteriorate with age If the base collapses the unit could fall with it causing property damage unit failure and personal injury Do not install the water pipe system as Open loop type It may cause failure of unit Use a vacuum pump or inert nitrogen gas when doing leakage ...

Page 7: ...er than 1 The minimum floor area 49 4 m2 2 The maximum refrigerant charge amount 2 4 kg Do not use means to accelerate the defrosting process or to clean other than those recommended by the manufacturer Do not pierce or burn Be aware that refrigerants may not contain an odour Dismantling the unit treatment of the refrigerant oil and eventual parts should be done in accordance with local and nation...

Page 8: ... disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the unit from the window before the hurricane arrives There is risk of property damage failure of unit or electric shock Do not open the front cover of the unit while operation Do not touch the electrostatic filter if the unit is so equipped There ...

Page 9: ... unit from time to time when operating it together with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the unit There is risk of electric shock Take care to ensure that nobody could step on or fall onto the unit This could result in personal injury and unit damage For installation always contact the dealer or an Authorized Service Center Th...

Page 10: ...ing of the dust or salt particles stuck on the heat exchangers by using water Keep any required ventilation openings clear of obstruction CAUTION Installation Always check for gas refrigerant leakage after installation or repair of unit Low refrigerant levels may cause failure of unit Keep level even when installing the unit To avoid vibration or water leakage Use two or more people to lift and tr...

Page 11: ...ced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard Installation work must be performed in accordance with the national wiring standards by authorized personnel only This equipment shall be provided with a supply conductor complying with the national regulation The instructions for service to be done by specialized personnel mandated by the manufactu...

Page 12: ...roduct box INSTALLATION PART INDOOR UNIT BOX Item Image Quantity Item Image Quantity Indoor unit 1 Installation Sheet 1 Installation Manual 1 Remote controller remover 1 Shut off valve 2 OUTDOOR UNIT BOX Item Image Quantity Outdoor Unit U4 Chassis Product heating capacity 5kW 7kW 9kW 1 Outdoor Unit U3 Chassis Product heating capacity 12kW 14kW 16kW 1 Drain Cap 2 Drain Nippl 1 ...

Page 13: ...l Information Model number nomenclature A H U W 0 9 6 A 3 Series Number Function A General heating heat pump Function A General heating heat pump Electrical ratings 6 1 phase 220 240 V 50 Hz 8 3 phase 380 415 V 50 Hz Heating Capacity kW 05 5kW 07 7kW 09 9kW 12 12kW 14 14kW 16 16kW Model Type W Inverter Heat Pump Classification U Outdoor Unit Air to Water Heat Pump for R410A A H N W 1 6 6 0 6 A 3 H...

Page 14: ...ure 35 C 24 C 3 All appliances were tested at atmospheric pressure Model Name Built In Electric Heater kW Power Source Electric Heater Capacity Power Source Unit Outdoor Unit Indoor Unit Heating kW 1 Cooling kW 2 Phase Capacity Phase Capacity 1Ø 5 kW 1Ø 16 kW 6 3 3 220 240 V 50 Hz 5 0 5 0 220 240 V 50 Hz 7 kW 7 0 7 0 9 kW 9 0 9 0 12 kW 12 0 10 4 14 kW 14 0 12 0 16 kW 16 0 13 0 3Ø 12 kW 3Ø 9 3 3 3 ...

Page 15: ...15 GENERAL INFORMATION ENGLISH Parts and Dimensions Indoor unit External unit mm 850 315 490 490 315 Description No Name Remark 1 Control Panel Built in Remote Controller ...

Page 16: ...16 GENERAL INFORMATION ENGLISH unit mm 484 13 9 10 12 6 8 14 15 4 3 2 16 16 1 5 484 123 116 84 5 63 4 36 9 46 4 76 41 847 8 7 11 289 6 Indoor unit Internal ...

Page 17: ...eater at 90 C manual return at 55C 9 Flow Switch Minimum operation range at 15 LPM 10 Plate Heat Exchanger Heat exchange between refrigerant and water 11 Pressure Gage Indicates circulating water pressure 12 Expansion Tank Absorbing Volume change of heated water 13 Air Vent Air purging when Charging water 14 Electric Heater Please refer to the below Page Model name and related information 15 Strai...

Page 18: ...L INFORMATION ENGLISH Product Heating Capacity 12kW 14kW 16kW U3 Chassis unit mm Supporter 490 Outdoor unit External No Name 1 Liquid side Service Valve 2 Gas side Service Valve 3 Air discharge Grill Description ...

Page 19: ...19 GENERAL INFORMATION ENGLISH Product Heating Capacity 5kW 7kW 9kW U4 Chassis unit mm Supporter No Name 1 Liquid side Service Valve 2 Gas side Service Valve 3 Air discharge Grill Description ...

Page 20: ...cks The terminal blocks allow easy connection of field wiring 2 Unit ELB The ELB protects the unit against overload or short circuit 3 Water tank heater ELB optional The ELB protects the water tank heater in sanitary water tank against overload or short circuit 4 Magnetic switch 5 Main PCB The main PCB Printed Circuit Board controls the functioning of the unit ...

Page 21: ...ng value OK button When you save the menu s setting value On Off button When you turn ON OFF the air conditioner OK Operation display window On Off Button OK Button Back button Up Down Left Right Button Wiring Diagram Indoor Unit Refer to the wiring diagram inside the control box Circuit Diagram Indoor Unit Refer to the circuit diagram inside the front panel Wiring Diagram Outdoor Unit Refer to th...

Page 22: ...22 GENERAL INFORMATION ENGLISH Wiring Diagram Indoor and Outdoor Unit Including Field wiring Indoor Electric Heater 1Ø Outdoor 1Ø ...

Page 23: ...23 GENERAL INFORMATION ENGLISH Wiring Diagram Indoor and Outdoor Unit Including Field wiring Indoor Electric Heater 3Ø Outdoor 3Ø ...

Page 24: ...cene according to the installation conditions Outdoor Indoor Outdoor Unit Indoor Unit Floor heating loop Fan coil unit Radiator M F NOTE Room thermostat Type of thermostat and specification should be complied with chapter 4 and chapter 7 of installation manual 2way valve It is important to install 2way valve to prevent dew condensation on the floor and radiator while cooling mode Type of 2way cont...

Page 25: ...ay valve and specification should be complied with chapter 4 and chapter 7 of installation manual Outdoor Indoor Outdoor Unit Indoor Unit Floor heating loop Fan coil unit Hot water City water Radiator M F DHW DHW tank tank DHW tank High Temperature Room Thermostat Field supply 2way valve Field supply 3way valve Field supply By pass valve Field supply Low Temperature Shut off valve Magnetic Filter ...

Page 26: ... Water Pump Maximum power consumption of pump should be less than 0 25kW Solar heat source Outdoor Indoor Outdoor Unit Indoor Unit Floor heating loop Fan coil unit DHW tank Hot water City water Radiator M F High Temperature Room Thermostat Field supply 2way valve Field supply 3way valve Field supply By pass valve Field supply Low Temperature Shut off valve Pump Field supply Magnetic Filter Recomme...

Page 27: ...th Chapters 4 and 7 of the THERMA V Installation Manual Outdoor Indoor Outdoor Unit Indoor Unit Floor heating loop Mix Mix Kit Room B Additional zone High Temp Room A Main Zone zone Low Temp Floor heating loop Radiator Radiator M F Buffer Tank High Temperature Room Thermostat Field supply 2way valve Field supply By pass valve Field supply Low Temperature Shut off valve Magnetic Filter Recommended ...

Page 28: ... specification should be complied with chapter 4 and chapter 7 of installation manual Outdoor Indoor Outdoor Unit Indoor Unit Floor heating loop 3 Way V V direction Boiler On Ơ Boiler Off ȯ Boiler Floor heating loop M F Buffer Tank Floor heating loop High Temperature Room Thermostat Field supply 2way valve Field supply By pass valve Field supply Low Temperature Shut off valve Magnetic Filter Recom...

Page 29: ...pipe temperature sensor CN_SUCTION Th5 Compressor discharge pipe temperature sensor CN_DISCHA Th6 Condenser temperature sensor CN_C_PIPE Description is expressed based on Cooling mode Th7 Outdoor air temperature sensor CN_AIR Th8 Condenser middle temperature sensor CN_MID EEV Electronic Expansion Valve CN_LEV1 Cycle Diagram Description GAS SIDE Service Valve 3 way EEV Service Valve 3 way Indoor Un...

Page 30: ...ydro Kit EXP TANK W PUMP_1 Ref Out F S E HT Remote Room Temp Sensor Solar Panel 3WAY V V_1 2WAY V V_1 City Water Shower 3WAY V V_2 SOLAR THERMAL SYSTEM W PUMP_2 B HT TH1 TH5 TH6 TH7 TH8 TH3 TH4 Ref In Radiator DHW Tank is Installed DHW tank is Necessary Solar thermal system is connected Solar thermal kit is necessary M F Magnetic Filter Recommended ...

Page 31: ... party accessory and Field installation sold separately Generating and storing DHW by AWHP or built in electric heater B HT Electric Heater CN_B HEAT A 3rd party accessory and Field installation usually built in at W TANK Supplying additional water heating capacity 3WAY V V_1 Flow control for water which is leaving from indoor unit Flow direction switching between underfloor and water tank CN_3WAY...

Page 32: ...ant to secure proper space around the outdoor unit and care for specific external conditions This chapter presents a guide to install the outdoor unit make a route to connect with the indoor and what to do when installed around seaside Conditions where Outdoor Unit is Installed If a sunroof is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the he...

Page 33: ...Seasonal wind and cautions in winter Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well Get ready for seasonal wind or snow in winter even in other areas Install a suction and discharge duct not to let in snow or rain Install the outdoor unit not to come in contact with snow directly If snow piles up and freezes on the air suction hol...

Page 34: ...oose the place where is water resistant or good drainage Service space should be secured No flammable materials around the indoor unit Mice can not be appeared to prevent entering the indoor unit or attacking wires Do not place anything in front of the indoor unit to ensure air circulation around the indoor unit Do not locate anything under the indoor unit to be free from unexpected water out In c...

Page 35: ...s of the front cover Then pull into upward direction Step 3 Attach Installation Sheet to the wall and mark the location of bolts This sheet helps to find correct location to the bolts Bottom screws Upper screw CAUTION After installation is completed return the remote control to its original state CAUTION The sheet should be attached level If not the supporting plate and the indoor unit will not be...

Page 36: ...bolts at the hole marks on the wall When screwing bolts use M8 M11 anchor bolts to secure hanging the indoor unit Step 5 Hang the indoor unit at the supporting plate NOTE Self drilling screw can be used as alternatives of M8 M11 anchor bolts But M8 M11 anchor bolts are more preferred ...

Page 37: ... be complied with IEC 60245 or HD 22 4 S4 This equipment shall be provided with a cord set complying with the national regulation The connecting cable connected to the outdoor unit should be complied with IEC 60245 or HD 22 4 S4 This equipment shall be provided with a cord set complying with the national regulation In order to avoid a hazard due to inadvertent resetting of the thermal cut out this...

Page 38: ... below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below Round pressure terminal Power wire Precautions when laying power wiring WARNING Make sure that the screws of the terminal are free from looseness ...

Page 39: ... 75A European International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low voltage systems with input current 16A of 75A per phase Circuit Breaker Specification Perform the electrical wiring work according to the electrical wiring connection All wiring must comply with local requirements Select a power source that is capable of supplying th...

Page 40: ...door unit A B A trap is not necessary when the outdoor unit is installed in a higher position than the indoor unit CAUTION 1 Standard pipe length is 7 5m If the pipe length is longer than 7 5m additional charge of the refrigerant is required according to the table Example If 16kW model is installed at a distance of 50m 1 700g of refrigerant should be added according to following formula 50 7 5 x 4...

Page 41: ...aring work Carry out flaring work using dedicated flaring tool for R 410A refrigerant as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above Step 5 Check Compare the flared work with right figure If flare is seemed to be defective cut off the flared section and do flaring work again Preparation for Piping Main cause of gas leakage is defect in flaring work...

Page 42: ...gn the center of the pipes and sufficiently tighten the flare nut by hand Step 2 Tightening Tighten the flare nut with a wrench Tightening torque is as following Indoor unit tubing Flare nut Pipings Torque wrench Indoor unit tubing Open end wrench fixed Connection pipe Flare nut Outside diameter Torque mm inch kgf m 6 35 1 4 1 8 2 5 9 52 3 8 3 4 4 2 12 7 1 2 5 5 6 6 15 88 5 8 6 6 8 2 19 05 3 4 9 9...

Page 43: ...figure If insects or small animals enter the outdoor unit it may cause a short circuit in the electrical box Finally form the pipes by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tape Ensuring thermal insulation is very important Outside diameter Torque mm inch kgf m 6 35 1 4 1 8 2 5 9 52 3 8 3 4 4 2 12 7 1 2 5 5 6 6 15 88 5 8 6...

Page 44: ... these screws and make it sure if they are all fastened tightly If not tightened burn out of the wire can be occurred Check the specification of power source such as phase voltage frequency etc Confirm that electrical capacity is sufficient Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate Confirm that the cable thickness is as sp...

Page 45: ...pipe forming by wrapping the connecting cable and refrigerant pipe between the indoor unit and outdoor unit with thermal insulation material and secure it with two kinds of vinyl tape Tape the refrigerant pipe power cable and connecting cable from down to up Secure the taped pipe is along with the exterior wall Form a trap to prevent water entering the room and electrical part Fix the taped pipe o...

Page 46: ...essure gauges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 3 0 Mpa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3 0 Mpa Next te...

Page 47: ...rn the valve stem of gas side valve counter clockwise to fully open the valve Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the va...

Page 48: ...any other conductivity materials Fix all cable using cord clamp tightly When cable is not fixed with cord clamp use additionally supplied cable ties Electrical Wiring General Consideration Followings are should be considered before beginning indoor unit wiring Field supplied electrical components such as power switches circuit breakers wires terminal boxes etc should be properly chosen with compli...

Page 49: ...flow for FCU cooling OUTDOOR UNIT 2WAY VALVE A THERMOSTAT Default 230 V AC 1 L 2 N 3 L1 L2 N L N L1 L2 11 12 13 14 15 16 17 18 19 20 1 L 2 N 3 L 4 N connecting external electric power supply for internal electric heater connecting external electric power supply for DHW tank electric heater TO ELB FOR DHW TANK E HEATER POWER SUPPLY 1 Ø 220 240 V 50 Hz Terminal Block 2 Terminal Block 3 1Ø Electric H...

Page 50: ...insulated cord type 60245 IEC 66 or H07RN F If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard L N Separation Power Supply Communication Wiring Shield cable 1 2 3 Terminal block at outdoor unit 20mm GN YL 1 Phase Ø NORMAL CROSS SECTIONAL AREA 6mm2 NORMAL CROSS SECTIONAL AREA 2 5mm2 3 Phase Ø 20mm GN YL N...

Page 51: ...n the product and water pipes or between pipes and pipes Connecting valves or elbows are for example in this category Configuration of water circuit is shown in Chapter 2 All connections should be complied with presented diagram While installing water pipes followings should be considered While inserting or putting water pipes close the end of the pipe with pipe cap to avoid dust entering When cut...

Page 52: ...utlet pipe of the indoor unit Water condensation on the floor While cooling operation it is very important to keep leaving water temperature higher than 16 C Otherwise dew condensation can be occurred on the floor If floor is in humid environment do not set leaving water temperature below 18 C Water condensation on the radiator While cooling operation cold water may not flow to the radiator If col...

Page 53: ...g If air is exist inside the water circuit then performance degrade noise at the water pipe mechanical damage at the surface of electric heater coil Step 4 Stop water supplying when the pressure gage located in front of the control panel indicates 2 0 bar Step 5 Close drain valve and fill valve Then wait for 20 30 seconds to observe water pressure being stabilized Step 6 If following conditions ar...

Page 54: ... product can occur Capacity Rated flow rate LPM Pump Head m at rated flow rate Product pressure drop m Plate heat exchanger Serviceable Head m 16kW 46 0 9 5 1 4 8 1 14kW 40 0 10 0 1 1 8 9 12kW 34 0 10 7 0 8 9 9 9kW 26 0 11 3 0 4 10 9 7kW 20 0 11 6 0 3 11 3 5kW 17 0 11 8 0 2 11 6 Water pump Capacity The water pump us variable type which is capable to change flow rate so it may be required to change...

Page 55: ... on standard ISO 9906 with pre pressure 2 0bar and liquid temperature 20 C WARNING Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit Performance curve Indoor Electric Heater 1Ø Indoor Electric Heater 3Ø Pump model PY 122NDDD3 ...

Page 56: ...ion Consult your AWHP unit supplier for locally approved solutions in your area Calculate the approximate volume of water in the system Except the AWHP unit And add six liters to this total volume to allow for the water contained in AWHP unit Antifreeze type Antifreeze mixing ratio 0 C 5 C 10 C 15 C 20 C 25 C Ethylene glycol 0 12 20 30 Propylene glycol 0 17 25 33 Methanol 0 6 12 16 24 30 CAUTION U...

Page 57: ...volume liter Pre pressure in Expansion vessel bar 20 60 100 140 180 220 260 300 340 2 4 2 1 1 7 1 4 1 0 0 7 0 3 Adjusting pre pressure of expansion vessel is as following Step 1 Refer Volume Height table If installation scene is belong to Case A go to Step 2 Otherwise if it is Case B do nothing pre pressure adjustment is not required Otherwise if it is Case C go to Step 3 Step 2 Adjust pre pressur...

Page 58: ...e on off external signal PDRYCB500 Dry Contact For Thermostat PDRYCB300 Solar Heating Kit To operate with solar heating system PHLLA Limit temperature 96 C DHW Tank To generate and store hot water PHS02060310 200 liter Single Heating Coil 1Ø 230 V 50 Hz 3kW Electric Heater PHS02060320 200 liter Double Heating Coil 1Ø 230 V 50 Hz 3kW Electric Heater PHS03060310 300 liter Single Heating Coil 1Ø 230 ...

Page 59: ...erature Heating Only type 230 V AC Cooling Heating type 230 V AC with Mode selection switch Mix Kit To use 2nd Circuit 3rd Party Boiler To use auxiliary boiler 3way valve and actuator To control water flow for hot water heating or floor heating 3 wire SPDT Single Pole Double Throw type 230 V AC 2way valve and actuator To control water flow for Fan Coil Unit 2 wire NO Normal Open or NC Normal Close...

Page 60: ...ation with wet hands Thermostat Thermostat is generally used to control the product by air temperature When thermostat is connected to the product the product operation is controlled by the thermostat Installation condition CAUTION USE 220 240 V Thermostat Some electro mechanical type thermostat has internal delay time to protect compressor In that case mode change can takes time more than user s ...

Page 61: ...es Heating Cooling 4 Yes Heating Only 3 230 V Electrical 2 Yes Heating Only 3 230 V Mechanical 1 Supported Operating Mode Power Type CAUTION Choosing heating cooling thermostat Heating cooling thermostat must have Mode Selection feature to distinguish operation mode Heating cooling thermostat must be able to assign heating target temperature and cooling target temperature differently If above cond...

Page 62: ...onnect external electric loads Wire L and N should be used only for operation electric type thermostat Never connect external electric loads such as valves fan coil units etc If connected Main PCB Heater can be seriously damaged WARNING Mechanical type thermostat Do not connect wire N as mechanical type thermostat does not require electric power supply CAUTION Do not connect external electric load...

Page 63: ...Mix Kit The mix kit must be installed in the main zone Main Zone zone where the water temperature is lowest when heating Add Zone The other zone Install Guide 2nd Circuit Heating h To use a floor combination during cooling operation the flow through the floor of the flow must be blocked by the 2 way valve Install Guide 2nd Circuit Cooling Main Zone Add Zone Floor 35 C Convector FCU 45 C Radiator 4...

Page 64: ...efer to the manual included in the accessories 3rd Party Boiler The product can be used by connecting an Auxiliary boiler You can control the boiler automatically and manually by comparing the outside temperature and the set temperature For more information on how to install please read Chapter 3 TYPICAL INSTALLATION EXAMPLE Case 5 For detailed installation instructions refer to the manual include...

Page 65: ...Stop Desired temperature Hot water operation stop Warm water temperature Full lock Etc How to Installation PI485 Fix the PI485 PCB as shown in below images For detailed installation method refer to PI485 Installation Manual Product Heating Capacity 12 kW 14 kW 16 kW U3 Chassis Product Heating Capacity 5 kW 7 kW 9 kW U4 Chassis For detailed installation instructions refer to the manual included in ...

Page 66: ...lation It ensures generating clean hot water Near the sanitary water tank there should be water supply and water drain to easy access and maintenance Set the maximum value of the temperature control device of sanitary tank General Information supports following 3way valve 1 SPDT Single Pole Double Throw Three wires consist of Live1 for selecting Flow A Live 2 for selecting Flow B and Neutral for c...

Page 67: ... the recirculation pump should turn on and turn off is required The operating duration time of the recirculation pump is calculated as follow Duration time minute k x V x R k 1 2 1 5 is recommended If distance between pump and tank is far then choose high number V Volume of sanitary water tank liter R Water flow rate of pump liter per minute which is determined by pump performance curve The pump o...

Page 68: ...tem L Live signal from PCB to Heater N Neutral signal from PCB to Heater Adjusting thermostat temperature To guarantee proper operation it is recommended to set temperature of thermostat to maximum temperature symbol at the picture 1Ø Electric Heater Model and 3Ø Electric Heater Model are set by same method as below WARNING Wire specification Cross sectional area of the wire should be 6mm2 L N A W...

Page 69: ...nd 4 symbol Ⓒ at the picture CAUTION Check Poarity Connect magnetic switch contact port no L1 to ELB MCCB port no 2 Connect magnetic switch contact port no L3 to ELB MCCB port no 4 Step 4 Connect magnetic switch contactor port no T1 and T3 with terminal block 1 port 6 and 7 symbol Ⓓ at the picture Check Polarity Connect magnetic switch contact port no T1 to terminal block 1 port 6 Connect magnetic...

Page 70: ...del ʸ ʶ ʹ ʷ ʺ ʶ ʶ ʶ ʶ ʷ ʷ ʹ ʹ ʺ ʺ Check Polarity 1Ø Electric Heater Model Connect ELB MCCB port no 1 to terminal block 3 port 3 Connect ELB MCCB port no 3 to terminal block 3 port 4 3Ø Electric Heater Model Connect ELB MCCB port no 1 to terminal block 3 port 1 Connect ELB MCCB port no 3 to terminal block 3 port 2 ...

Page 71: ... DHW tank sensor Connect it to CN_TH4 Red Connector of the unit PCB symbol Ⓐ at the picture The sensor wire should be passed through holes for sensor symbol Ⓑ and Ⓒ at the picture The sensor should be mounted correctly to the sensor hole of DHW tank CAUTION Sensor mounting Insert sensor into sensor socket and bolt it tightly Heater Model are mounted by same method as below ...

Page 72: ... extend of pipe s diameter Step 3 After Step 2 connect the pipe and solar thermal kit Step 4 Connect solar thermal sensor to CN_TH4 Red connector of the unit PCB If the DHW tank sensor is connected disconnect the sensor from PCB first Solar Thermal System Field Supply Solar Collector Field Supply Water Tank Water Tank Sensor less than 12 m Solar Thermal Sensor less than 12 m Water In Water Out Wat...

Page 73: ...from external sources like key in lock door or window switch etc specially used in Hotel rooms How to Install Dry Contact Connect the PCB by inserting the holder in the accessory box as below A PDRYCB300 Model B PDRYCB500 Model A A A A B B B B NOTE For more information about installing Dry Contact Please refer installation manual provided with Dry Contact For system set up please read chapter 8 Es...

Page 74: ... Yes Opening water flow Yes Closing water flow 230 V AC NO 2 wire 1 Supported Operating Mode Power Type 2way valve NO NC N 2WAY VALVE A L1 L2 N 14 15 16 WARNING Wiring Normal Open type should be connected to wire NO and wire N for valve opening in cooling mode Normal closed type should be connected to wire NC and wire N for valve closing in cooling mode CAUTION Dew Condensation Wrong wiring can yi...

Page 75: ... How to wire 3way valve Follow below procedures Step 1 Step 2 Step 1 Uncover front cover of the unit Step 2 Find terminal block and connect wire as below W Live signal Water tank heating from PCB to 3way valve U Live signal Under floor heating from PCB to 3way valve N Neutral signal from PCB to 3way valve Type Power Operating Mode Supported SPDT 3 wire 1 220 240 V Selecting Flow A between Flow A a...

Page 76: ...ffect or cavitation effect noise or water pipe vibration can be occurred while 3way valve is operating In that case check followings Is water circuit both under floor water loop and sanitary water tank loop fully charged If not additional water charging is required Fast valve operation yields noise and vibration Appropriated valve operating time is 60 90 seconds Air Vent For correct operation of t...

Page 77: ...electronic noise may occur from the power source 5 The power cord specifications Check the power cord specifications Refer to Chapter 4 Connecting Cables 6 3Way Valve Water should flow from Water outlet of the unit to sanitary tank Water inlet when sanitary tank heating is selected To verify the flow direction Make sure that the water outlet temperature of the unit and water inlet temperature of s...

Page 78: ... improper operation or degrade of performance can be expected DIP Switch Setting General Information Indoor PCB CAUTION Turn off electric power supply before setting DIP switch Whenever adjusting DIP switch turn off electric power supply to avoid electric shock OFF ON SW1 1 2 3 4 OFF is selected ON is selected OFF ON SW2 1 2 3 4 5 6 7 8 1 2 3 4 1 2 3 4 1 2 3 4 5 6 7 8 ...

Page 79: ...Outdoor unit DHW tank is installed Unit Outdoor unit DHW tank Solar thermal system is installed DHW tank is installed Full capacity is used Cycle 4 4 Heating Only Heating Cooling Flow Switch Detection 5 Always 5 While water pump is on Selecting electric heater capacity Electric heater is not used Unused 1Ø model Half capacity is used 3Ø model 1 3 capacity is used Thermostat installation informatio...

Page 80: ...Option Switch 1 Description Description Setting Setting Default Default MODBUS MODBUS Function Reserved Reserved 1 1 As Master As Slave 2 2 Common 3rd party SIEMENS 3 3 4 4 Reserved Reserved 1 2 3 4 Description Setting Default ...

Page 81: ...ensor problems The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No 4 of the unit PCB Heavy trouble a problem is found inside the outdoor unit As the outdoor unit has problem the emergency mode operation is performed by electric heater located in the unit Option Trouble a problem is found for option operation such as water tank heating In this...

Page 82: ...emergency operation mode When DHW is not warming up while emergency operation please check if DHW sensor and related wiring are all Ok Emergency operation is not automatically restarted after main electricity power is reset In normal condition the product operating information is restored and automatically restarted after main electricity power is reset But in emergency operation automatic re star...

Page 83: ...ing category and press OK button to move to the service setting list Service setting You can set the product service functions Some functions may not be displayed operated in some product types OK Menu Description Service contact Check and input the service center phone number that you can call when there is service issue Model information View product and capacity information RMC Version Informat...

Page 84: ... you can call when there is service issue In the service setting list select the service contact point and press OK button to move to the detail screen While edit button is selected press OK button to move to the edit screen change it and press OK button to change the service contact point OK OK ...

Page 85: ...ted In the service setting list select model information category and press OK button to move to the detail screen The unit capacity 1kWh 1kBtu 0 29307 kWh is the result calculated based on Btu There may be a small difference between calculated and actual capacity Ex If the unit capacity is 18kBtu it is displayed as 5kWh OK ...

Page 86: ...ERVICE SETTING ENGLISH RMC version lnformation View the remote controller software version In the service setting list select the RMC version information and press OK button to move to the detail screen OK ...

Page 87: ...ICE SETTING ENGLISH Open source license View the remote controller s open source license In the service setting list select the open source license category and press OK button to move to the detail screen OK ...

Page 88: ...01 OK OK CAUTION The installer setting mode is the mode to set the remote controller s detail function If the installer setting mode is incorrectly set it may cause product failure user s injury or property damage It must be set by the installation specialist with the installation license and if it is installed or changed without installation license all problems caused will be the responsibility ...

Page 89: ...nge of Setting Heating Flow Temperature in heating mode DHW Set Temp setting Setting DHW set temperature Screed drying setting Setting for using Step 1 or 2 capacity of electric Heater on temperature Setting outdoor air temperature where half capacity of electric heater starts operation Water supply off temp during cooling setting Determine leaving water temperature when the unit is turned off Thi...

Page 90: ...is function to set the address of the Modbus device that is externally linked to the product Modbus address setting function is available from indoor unit CN_EXT Function to set external input and output control according to DI DO set by customer using dry contact port of indoor unit Determine the use of the contact port CN_EXT mounted on the indoor unit PCB Anti freezing Temperature This function...

Page 91: ...ISH 3 Minutes Delay Temporarily eliminates the 3 minute delay function of the outdoor unit Comp Factory use only In the installer setting list select 3 Minutes Delay category and press OK button to move to the detail screen OK ...

Page 92: ...temperature as air temperature or leaving water temperature is determined In the installer setting list Select Temperature Sensor category and press OK button to move to the detail screen NOTE Air temperature as setting temperature is ONLY available when Remote Air Sensor Connection is enabled and Remote Air Sensor Connection is set as 02 OK Value Water Air Air Water ...

Page 93: ...ing values using left right button Value Auto manual NOTE For dry contact mode related detail functions refer to the individual dry contact manual What is dry contact It means the contact point signal input when the hotel card key human body detection sensor etc are interfacing with the air conditioner Added system functionality by using external inputs dry contacts and wet contacts ...

Page 94: ...rol address of the unit In the installer setting list select Central Control Address category and press OK button to move to the detail screen OK NOTE Enter address code as hexadecimal value Front Central Control Gr No Back side Central control indoor the number NOTE This function is not available for monobloc ...

Page 95: ... The pump test run is the function to test run by operating the water pump This function can be used for air vents flow sensors and others In the installer setting list Pump Test run category and press OK button to move to the detail screen OK ...

Page 96: ...nstaller setting list select Air cooling set temp category and press OK button to move to the detail screen Upper lower limit default value is in C OK NOTE Only available when remote air temperature sensor is connected Accessory PQRSTA0 should be installed Also Remote air sensor connection should be set properly Value Default Range Max 30 30 24 Min 18 22 16 ...

Page 97: ... OK NOTE Water condensation on the floor While cooling operation it is very important to keep leaving water temperature higher than 16 C Otherwise dew condensation can be occurred on the floor If floor is in humid environment do not set leaving water temperature below 18 C Value Default Range Max 24 27 22 Min 18 20 5 NOTE Water condensation on the radiator While cooling operation cold water may no...

Page 98: ...staller setting list select Air heating set temp category and press OK button to move to the detail screen Upper lower limit default value is in C OK Value Default Range Max 30 30 24 Min 16 22 16 CAUTION Only available when remote air temperature sensor is connected Accessory PQRSTA0 should be installed Also Remote air sensor connection should be set properly ...

Page 99: ...s setting temperature In the installer setting list select Water heating set temp category and press OK button to move to the detail screen Upper lower limit default value is in C OK Value Default Range Max 57 57 35 Min 15 34 15 NOTE When the E heater is not used the minimum temperature of the water temperature can be set from 34 C to 20 C ...

Page 100: ...etting temperature range when DHW temperature is selected as setting temperature In the installer setting list select DHW set temp category and press OK button to move to the detail screen Upper lower limit default value is in C OK Value Range Max 80 50 Min 40 30 ...

Page 101: ...at the bottom of the display is displayed Setting value Start up step 1 11 Maximum temperature 35 C 55 C Step 8 Holding time 1 days 30 days Function operation It is performed by the following procedure from the selected starting step After all steps are completed turn off the cement curing operation If the upper limit setting value of the heating LW temperature is 55 C or lower it is set to 55 C f...

Page 102: ...l is reset to the error occurrence state it is compensated in the unit of one day Upon releasing after an error Screed drying operation may take up to 1 minute of waiting time after boot up The Screed drying operation status is judged as 1 minute cycle During Screed drying operation installer function Screed drying operation is selectable During Screed drying operation starting operation low noise...

Page 103: ...ions it is necessary to change the temperature condition in which electric heater turns on off In the installer setting list Heater on temperature category and press OK button to move to the detail screen Upper lower limit default value is in C OK Default Range Split 5 18 15 Mono 5 18 25 ...

Page 104: ...g water temperature or room air temperature is much belower than target leaving water temperature or target room air temperature Using Full capacity of electric heater when DIP Switch No 6 and 7 is set as OFF OFF Example If Heater on temperature is set as 1 and DIP switch No 6 and 7 is set as OFF OFF then full capacity of electric heater will start operation when outdoor air temperature is below 1...

Page 105: ...unction is used for preventing condensation on the floor in cooling mode In the installer setting list select Water supply off temp during cooling category and press OK button to move to the detail screen OK Function Value Default Setting Rang cooling water temperature Water supply off temperature 16 25 16 FCU Use not use use Use Not Use ...

Page 106: ... when the leaving water temperature is below 10 C Example If Stop temp is set as 10 and FCU is Not use and actually FCU is installed in the water loop the Stop temp is not used and the unit do NOT stop operation in cooling mode when the leaving water temperature is below 10 C CAUTION FCU Installation If FCU is used related 2way valve should be installed and connected to the unit PCB If FCU is set ...

Page 107: ...he date when the disinfection mode is running Start time Determining the time when the disinfection mode is running Max temp Target temperature of disinfection mode Duration time Duration of disinfection mode Time Start time Max temp Duration time Water temperature Inside DHW Temperature profile of Disinfection operation NOTE DHW heating should be enable If Disinfection active is set as Not use th...

Page 108: ...8 INSTALLER SETTING ENGLISH Tank setting 1 In the installer setting list select tank setting 1 category and press OK button to move to the detail screen OK Value Range Max outdoor temp 55 40 Min temp 30 1 ...

Page 109: ...LLER SETTING ENGLISH Tank setting 2 In the installer setting list select tank setting 2 category and press OK button to move to the detail screen OK Value Range Hysteresis 4 2 Heating priority Floor heating DHW ...

Page 110: ...temperature is above 73 C The water tank heater will be turned on when the water temperature is below 70 C Example If Heating priority is set as DHW that means heating priority is on DHW heating DHW is heated by AWHP compressor cycle and water heater In this case the under floor can not be heated while DHW heating On the other hand if the Heating priority is set as Floor heating that means heating...

Page 111: ...ectric heater and DHW tank heater are on and off according to control logic If Heater priority is set as Boost heater only ON then electric heater is never turned on and only DHW tank heater is on and off according to control logic In the installer setting list heater priority category and press OK button to move to the detail screen OK Value Boost heater only ON Main Boost heater ON ...

Page 112: ...e duration defines how long time DHW tank heating can be stopped It is also regarded as time gap between DHW tank heating cycle Boost heater delay time This time duration defines how long time DHW tank heater will not be turned on in DHW heating operation Example of timing chart DHW tank heating is enabled DHW tank heater is enabled DHW tank heating operation DHW tank heater operation 1 active 0 n...

Page 113: ...the heating air temperature Thermal On Off temperature according to the field environment in preparation for heating or heating claim You can set the following setting values using left right button Value Description TH On TH Off Type0 0 5 C 1 5 C Type1 1 C 2 C Type2 2 C 3 C Type3 3 C 4 C ...

Page 114: ...t the heating water temperature Thermal On Off temperature according to the field environment in preparation for heating or heating claim You can set the following setting values using left right button Value Description TH On TH Off Type0 2 C 2 C Type1 3 C 3 C Type2 4 C 4 C Type3 1 C 1 C ...

Page 115: ... 1 C Type2 2 C 2 C Type3 3 C 3 C TH on off Variable cooling air It is a function to adjust the cooling air temperature Thermal On Off temperature according to the field environment in preparation for cooling or cooling claim You can set the following setting values using left right button ...

Page 116: ...the cooling water temperature Thermal On Off temperature according to the field environment in preparation for cooling or cooling claim You can set the following setting values using left right button Value Description TH On TH Off Type0 0 5 C 0 5 C Type1 1 C 1 C Type2 2 C 2 C Type3 3 C 3 C ...

Page 117: ... putting the water pump s rest time Installer setting function to set water pump operation delay time option in heating mode In the installer setting list select Pump setting in heating category and press OK button to move to the detail screen OK Type Time setting Operation continue On 1 min 60 min Off 1 min 60 min ...

Page 118: ... putting the water pump s rest time installer setting function to set water pump operation delay time option in cooling mode In the installer setting list select Pump setting in cooling category and press OK button to move to the detail screen OK Type Time setting Operation continue On 1 min 60 min Off 1 min 60 min ...

Page 119: ...e to prevent pump failure and PHEX freezing Water pump off After 20 consecutive hours disable enable the logic that drives the water pump by itself In the installer setting list select Forced operation category and press OK button to move to the detail screen OK Type Use Not use Oper Cycle 20 min 180 min Oper Time 1 min 10 min ...

Page 120: ...escription D C Automatic When power is applied to the product the unit when the contact point is on in Dry Contact installed state recognizes Dry Contact installation D C Not Installed Do not use install Dry Contact D C Installed Use install Dry Contact NOTE CN_CC is the device connected to the unit to recognize and control the external contact point ...

Page 121: ... a function to enable installer to control pump RPM of BLDC pump application model In the installer setting list select Pump frequency setting RPM category and press OK button to move to the detail screen OK Value Description 0 Default 500 3700 RPM Change unit 10 ...

Page 122: ...lt Use Step 0 Step 1 Step 2 Smart Grid SG It is the function to enable disable the SG Ready function and to set the reference value at SG2 step In the installer setting list select Smart Grid SG category and press OK button to move to the detail screen OK ...

Page 123: ... Out1 Out2 1 Outdoor2 Heat Out2 Heating higher ambient temp 16 C Out2 Out1 1 Out2 Out3 5 Outdoor3 Cool Out3 Cooling lower ambient temp 10 46 C 30 C Out3 Out2 5 Out3 Out4 1 Tank setting 2 Setting maintain temperature for operation 40 C Out4 Out3 1 Water1 Heat LW1 Heating higher water temp Use heater LW STD 15 65 C EW STD 15 55 C Not use heater LW STD 20 65 C EW STD 20 55 C 35 C LW1 LW2 DHW time set...

Page 124: ...mp C Leaving Water Temp Outdoor Air Temp Heating Set point 1 30 20 57 39 Set point 5 20 10 Set point 2 19 16 38 20 Set point 6 5 5 Cooling Set point 3 30 24 25 17 Set point 7 10 18 Set point 4 23 18 16 6 Set point 8 22 30 Auto Adjustable Target Temperature Set point 1 Set point 2 Set point 3 Set point 4 Set point 5 Set point 6 Set point 7 Set point 8 Outdoor air temperature Temperature profile of ...

Page 125: ...us device that is externally linked to the product Modbus address setting function is available from indoor unit In the installer setting list select Modbus Address and press OK button to move to the detail screen OK NOTE To use this function switch No 1 of option switch 1 must be turned ON ...

Page 126: ...l external input and output according to DI type set by customer using CN EXT Port In the installer setting list select CN EXT Port category and press OK button to move to the detail screen Value Not use Simple Operation Simple Dry Contact Single emergency stop OK ...

Page 127: ...tivating this function It allows 2 zones Room1 Room2 temperature to be controlled separately In case of heating the temperature of Room1 can not be set higher than Room2 temperature In case of cooling the temperature of Room1 can not be set lower than Room2 temperature Setting range Add Zone 2nd Circuit function setting Use Not Use Value Closing Time 60 999 sec Default 240 Hysteresis Thermal On Of...

Page 128: ...ING ENGLISH Use External Pump This function can be set to control the external water pump In the installer setting list select Use External Pump category and press OK button to move to the detail screen Value Not use Use ...

Page 129: ...emperature external boiler operation temperature value installer setting turn off the indoor unit and operate the external boiler External boiler OFF condition If External air temperature external boiler operation temperature value installer setting Hysteresis installer setting turn off external boiler operation and operate indoor unit If the mode of this function is set to Manual you can set temp...

Page 130: ...a to create data for energy monitoring and energy warning alarm pop ups This function can be activated in installer mode There are 2 options modbus address and unit in this function Activating the modbus address option you choose one address B0 or B1 or don t use Then you set the port and specification in range of 0000 0 9999 9 pulse kW as shown in the figure below OK ...

Page 131: ...ufficient flow before the compressor is operated This is a function that allows heat exchange to work smoothly Pump Overrun is a function to prevent water pump failure and to help mechanical life If the water pump has been off for 20 hours Water pump will operate for the set time OK ...

Page 132: ...move to the detail screen OK NOTE Error history lookup range 50 Error history information Item date time mode including Off set temperature incoming temperature outgoing temperature room temperature Hot water operation stop Hot water set temperature Hot water temperature Outdoor unit On Off Error code Number of Display Within 50 Save criteria ν ν Error occurred released ON OFF of outdoor unit oper...

Page 133: ...t in the remote controller In the installer setting list select the password initialization setting category and press OK button to move to the detail screen When you press initialization button a popup screen appears and when you press check button password initialization starts and the user password is changed to 0000 OK ...

Page 134: ...increased depending on the parameter Mode SG Mode SG set temperature α depending on the below parameter Step 0 DHW 5 C Step 1 H P 2 C DHW 5 C Step 2 H P 5 C DHW 7 C 1 1 Switch on command The command activates the compressor Optionally electrical booster heaters can be activated to utilize electricity surpluses Power Supply Blockage SG Ready The heat pump operated automatically by the power supply ...

Page 135: ...ling set temp Water cooling set temp Air heating set temp Water heating set temp DHW set temp Screed drying Heater on temperature Water supply off temp during cooling Tank disinfection setting 1 2 Tank setting 1 Tank setting 2 Heater priority DHW time setting TH on off Variable heating air TH on off Variable heating water Installer Central Control Address 91 92 93 94 95 96 97 98 99 100 101 103 105...

Page 136: ... Pump setting in cooling Forced operation CN_CC Pump frequency setting RPM Smart Grid SG Seasonal auto temp Modbus Address CN_EXT Add Zone Use External Pump 3rd Party Boiler Meter Interface Pump Prerun Overrun Data logging Password Initialization 115 116 117 118 119 120 121 122 123 125 126 127 128 129 130 131 132 133 ...

Page 137: ...ter charging air should be taken out through the hole of the air purge If water does not splash out when the tip at the top of the hole is pressed then air purging is not completed yet If well purged the water will splash out like fountain Be careful when testing air purge Splashed water may make your dress wet Two shut off valves located at the end of water inlet pipe and water outlet pipe of the...

Page 138: ...rainer Water filter Safety valve Terminal block wiring 1 2 3 4 Starting Operation Check before Starting Operation 1 Check to see whether there is any refrigerant leakage and check whether the power or transmission cable is connected properly 2 Confirm that 500 V megger shows 2 0 MΩ or more between power supply terminal block and ground Do not operate in the case of 2 0 MΩ or less NOTE Never carry ...

Page 139: ...further precautions are required Factor that influence the actual level of exposure of the workforce include the characteristics of the work room and the other sources of noise i e the number of equipment and other adjacent processes and the length of time for which an operator exposed to the noise Also the permissible exposure level can vary from country to country This information however will e...

Page 140: ...er inlet temperature is below 15 C in heating operation the unit does not operated for the sake of system protection Wait while unit warms up to 18 C the water inlet temperature If you are not using the back up heater accessory HA 1M E1 increase the water temperature with the external heat source heater boiler If the problem persists contact your dealer If you want to use the screed drying functio...

Page 141: ...Bad communication between Main PCB assembly Heater and Main PCB assembly Inverter of the unit The connector for transmission is disconnected The connecting wires are misconnected The communication line is broken Main PCB assembly Inverter is abnormal Main PCB assembly Heater is abnormal Wire connection between remote control panel and Main PCB assembly Heater should be tight 53 9 PCB program EEPRO...

Page 142: ...ndition abnormal 5 PCB assembly 1 Damage input current sensing part 29 Inverter compressor over current HM 1M U 3 Inverter Compressor input current is 30A HM 3M U 3 Inverter Compressor input current is 24A 1 Overload operation Pipe clogging Covering EEV defect Ref overcharge 2 Compressor damage Insulation damage Motor damage 3 Input voltage low 4 ODU PCB assembly 1 damage 32 High temperature in Di...

Page 143: ...ect of outdoor PCB Inverter 52 PCB Communication Error Checking the communication state between Main PCB and Inverter PCB Generation of noise source interfering with communication 54 Open and Reverse Phase Error Prevention of phase unbalance and prevention of reverse rotation of constant rate compressor Main power wiring fault 60 PCB Inverter Main EEPROM check sum error EEPROM Access error and Che...

Page 144: ...B Inverter input power current is over 48A Peak for 2ms HM 3M U 3 PCB Inverter input power current is over 27A Peak for 2ms 1 Overload operation Pipe clogging Covering EEV defect Ref overcharge 2 Compressor damage Insulation damage Motor damage 3 Input voltage abnormal 4 Power line assemble condition abnormal 5 PCB assembly 1 damage input current sensing part ...

Page 145: ... Inc EU Representative LG Electronics European Shared Service Center B V Krijgsman 1 1186 DM Amstelveen The Netherlands Manufacturer LG Electronics Inc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangnam do KOREA ...

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