LG ART COOL LA090HSV4 Engineering Manual Download Page 55

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Due to our policy of continuous product innovation, some specifications may change without notification.

MecHanIcaL SPecS | 55

Mechanical Specifications

Table 27: Table of Acronyms.

ACronyMS

ABS

Acrylonitrile Butadiene Styrene

IDU

Indoor Unit

Air Conditioner

ISo

International organization for Standardization

ACP

Advanced Control Platform

Kilo Watts

ASHRAE

American Society of Heating, Refrigeration, and

Air Conditioning

LED

Light Emitting Diode

AWG

American Wire Gauge

MBh

Thousands BTUs per hour

BLDC

Brushless Digitally Controlled/Direct

MCA

Maximum Circuit Ampacity

Btu/h

British Thermal Units per hour

MoP

Maximum overcurrent Protection

BUS

Binary Unit System

MSC

Maximum Starting Current

CFM

Cubic Feet per Minute

noise Criterion (regarding Sound Pressure Levels)

CoP

Coefficient of Performance

nEC

national Electrical Code

Combination Ratio

oDU

outdoor Unit

Dry Bulb

PCB

Printed Circuit Board

dB(A)

Decibels with “A” frequency weighting

PCM

Pre-Coated Metal

DDoAS

Decoupled Dedicated outdoor Air

PDI

Power Distribution Indicator

Digital Input

Power Input

Digital output

PTAC

Packaged Terminal Air Conditioner

DPST

Double-Pole Single-Throw (switch)

PVC

Polyvinyl Chloride

EEV

Electronic Expansion Valve

SW or

S/W

Switch

ELF

Equivalent Length in Feet

USB

Universal Serial BUS

ESP

External Static Pressure

VAC

Voltage Alternating Current

ETL

Electronic Testing Laboratories

VAV

Variable Air Volume

HIPS

High Impact Polystyrene

VRF

Variable Refrigerant Flow

H/M/L

High/Medium/Low

Wet Bulb

HVAC

Heating, Ventilation and Air Conditioning

Summary of Contents for ART COOL LA090HSV4

Page 1: ...3 4 1 and 1 1 2 Tons Models LA090HSV4 LA120HSV4 LA180HSV4 Single zone Art Cool Mirror WALL Mounted Engineering Manual ...

Page 2: ...l as all reports illustrations data information and other materials are the property of LG Electronics U S A Inc and are disclosed by LG Electronics U S A Inc only in confidence This document is for design purposes only A summary list of safety precautions is on page 4 For more technical materials such as submittals catalogs installation owner s and service manuals visit www lghvac com ...

Page 3: ... alternative to both central HVAC and window mounted air conditioners These inverter heat pump systems are available in a variety of configurations to suit dif ferent cooling and heating situations Installation by a qualified HVAC contractor is safe and easy little to no duct work or sheet metal is required Inverter Systems LG Single Zone Art Cool Mirror Wall Mounted air source systems offer the o...

Page 4: ...pment Selection Procedure 38 LAN090HSV4 LSU090HSV4 LAN120HSV4 LSU120HSV4 38 LAN180HSV4 LSU180HSV4 39 Building Ventilation Design Guide 41 Placement Considerations 42 44 Refrigerant Piping Design Layout Best Practices 45 Refrigerant Piping Design 46 Design Guideline Summary 46 Selecting Field Supplied Copper Tubing 47 Installation Layout Best Practices 48 Refrigerant Piping System Layout 48 Piping ...

Page 5: ...Introduction Architectural Appeal on page 6 ...

Page 6: ...ominal capacity range of 3 4 to 1 1 2 tons These are best suited for applications with zones that require heat ing or cooling such as residential and small business office buildings Single Zone Art Cool Mirror Wall Mounted outdoor and indoor units are available in 208 230V 60Hz 1Ph Adaptable and Flexible Single zone wall mounted duct free split systems allow cooling or heating for the entire resid...

Page 7: ... General Data on page 10 Electrical Data on page 11 Outdoor Unit Dimensions on page 14 Indoor Unit Dimensions on page 16 Acoustic Data on page 18 Refrigerant Flow Diagram on page 20 Indoor Unit Wiring Diagram on page 22 Outdoor Unit Wiring Diagram on page 24 Accessories on page 26 ...

Page 8: ...ry the compressor motor shaft speed to deliver an appropriate amount of cooling to the indoor unit Precise refrigerant volume delivery translates into long periods with coil surface temperatures below dew point and minimizes compressor and fan component run time which may lead to lower utility usage Simplified Installation Cooling and heating applications that use single zone systems simplify and ...

Page 9: ...ts LA N 090 HSV 4 Type N Indoor Wall Mount Unit U Outdoor Heat Pump Unit Family LA Art Cool Premier Gallery Mirror LS High Efficiency Wall Mount Standard Mega Generation or Revision 1 First 2 Second 3 Third 4 Fourth Nominal Capacity Nominal cooling capacity in Btu h 090 091 9 000 120 121 12 000 180 181 18 000 240 24 000 300 307 30 000 360 36 000 Indoor Outdoor Product HEV Mega HXV Mega 115V HYV Ar...

Page 10: ...iffs NJ All rights reserved LG is a registered trademark of LG Corp General Data Art Cool Mirror Pairing Table The following table shows the available outdoor and indoor units along with the factory provided controller Table 1 Single Zone Art Cool Mirror Pairing Table Outdoor Unit Model Indoor Unit Model Controller LSU090HSV4 LSU120HSV4 LAN090HSV4 LAN120HSV4 AKB73835317 LSU180HSV4 LAN180HSV4 AKB73...

Page 11: ...gle Rotary 1 Twin Rotary 1 Fan IDU Type Qty Cross Flow 1 ODU Type Qty Propeller 1 Motor Drive Brushless Digitally Controlled Direct Airflow Rate IDU Max H M L CFM 423 353 272 191 423 353 272 191 735 622 509 339 ODU Max CFM 1 165 1 165 2 119 Piping Liquid Line in OD 1 4 1 4 3 8 Vapor Line in OD 3 8 3 8 5 8 Condensation Line OD ID 27 32 5 8 27 32 5 8 27 32 5 8 Additional Refrigerant Charge oz ft 0 2...

Page 12: ...pressor A Cool Heat Fan Qty ODU Fan A IDU Fan A MCA A MOP A LA090HSV4 3 4 1 8 3 8 3 1 0 40 0 40 10 15 LA120HSV4 1 1 8 3 8 3 1 0 40 0 40 10 15 LA180HSV4 1 1 2 1 14 6 14 6 1 0 25 0 40 19 25 Table 3 Single Zone Art Cool Mirror System Electrical Data Table Voltage tolerance is 10 Maximum allowable voltage unbalance is 2 MCA Minimum Circuit Ampacity Maximum Overcurrent Protection MOP is calculated as f...

Page 13: ... P control X X X Electric heater X X X High ceiling X X X Defrost Low ambient Hot start Self diagnostics Soft dry dehumidification Auto changeover Auto clean coil dry Auto restart Child lock X X X Forced operation Sleep mode Timer 24hr on off Weekly timer X X X Two thermistor control X X X Controllers Wireless Remote Controller Simple Controller with Mode Selection o o o Simple Controller without ...

Page 14: ...thout notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LSU090HSV4 LSU120HSV4 Outdoor Unit Dimensions 30 5 16 22 4 3 16 13 15 16 6 3 32 2 3 32 10 15 16 1 20 7 8 21 1 2 10 1 2 9 3 8 19 15 16 2 7 8 8 3 32 4 3 2 5 11 5 16 5 3 4 Ø18 5 16 Center of gravity Unit inch Discharge Air Grille ...

Page 15: ...G Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LSU180HSV4 Outdoor Unit Dimensions 34 1 4 21 1 2 12 19 32 14 3 16 6 5 16 2 3 16 13 1 8 31 1 2 30 7 8 15 7 16 13 3 4 21 1 8 3 1 8 2 Ø 20 7 8 Item No Part Name 1 Discharge air grille 2 3 4 5 6 12 5 8 5 7 8 Center of gravity Unit inch ...

Page 16: ...nc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Indoor Unit Dimensions LAN090HSV4 LAN120HSV4 Ø2 9 16 5 1 8 3 11 16 Right rear piping Left rear piping Place a level on raised tab Unit Outline 8 1 2 6 15 16 17 3 8 17 3 8 5 Ø2 9 16 34 13 16 8 1 16 1 3 4 6 5 16 2 5 16 15 16 11 1 4 2 1 3 4 2 3 16 2 3 8 3 2 1 4 Unit Inch Return Air Grille for piping and cables ...

Page 17: ...wood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Indoor Unit Dimensions LAN180HSV4 3 2 1 40 9 16 9 11 16 1 13 16 12 3 4 2 1 16 1 3 4 2 9 16 2 1 16 Ø2 9 16 Right rear piping Left rear piping MeasuringTape MeasuringTapeHanger Placealevelonraisedtab UnitOutline 18 1 8 22 7 16 8 1 8 4 1 8 2 11 16 2 1 8 Ø2 9 16 4 Unit Inch Return Air Grille ...

Page 18: ...er ISO Standard 3745 Sound level will vary depending on a range of factors including the construction acoustic absorption coefficient of a particular room in which the unit was installed Octave Band Center Frequency Hz Octave Band Sound Pressure Level 0dB 20μPa 10 20 30 40 50 60 70 80 Octave Band Sound Pressure Level 0dB 20μPa 10 20 30 40 50 60 70 80 63 125 250 500 1000 2000 4000 8000 Octave Band ...

Page 19: ... ISO Standard 3745 Sound level will vary depending on a range of factors including the construction acoustic absorp tion coefficient of a particular room in which the unit was installed Indoor Unit Acoustic Data 10 20 30 40 50 60 70 80 63 125 250 500 1000 2000 4000 8000 Octave Band Sound Pressure Level 0dB 20μPa Octave Band Center Frequency Hz NC 15 NC 20 NC 25 NC 30 NC 35 NC 40 NC 45 NC 50 NC 55 ...

Page 20: ...2 Evaporator inlet temperature thermistor TH3 Evaporator middle temperature thermistor CN TH2 Indoor TH4 Evaporator outlet temperature thermistor TH5 Water level sensor optional CN TH3 Indoor TH6 Outdoor air temperature thermistor CN TH1 Outdoor TH7 Condensing temperature thermistor TH8 Discharge pipe temperature thermistor CN TH2 Outdoor FIELD PIPING Ø1 4 Copper Tubing FIELD PIPING Ø3 8 Copper Tu...

Page 21: ...ature thermistor TH3 Evaporator middle temperature thermistor CN TH2 Indoor TH4 Evaporator outlet temperature thermistor TH5 Water level sensor optional CN TH3 Indoor TH6 Outdoor air temperature thermistor CN TH2 Outdoor TH7 Condensing temperature thermistor TH8 Discharge pipe temperature thermistor CN TH3 Outdoor FIELD PIPING Ø 3 8 Copper Tubing FIELD PIPING Ø5 8 Copper Tubing M M Heat Exchanger ...

Page 22: ...us product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Wiring Diagram LAN090HSV4 LAN120HSV4 Auxiliary heater relay kit is not available on single zone wall mounted models ...

Page 23: ...nnovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Wiring Diagram LAN180HSV4 Auxiliary heater relay kit is not available on single zone wall mounted models ...

Page 24: ...ur policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Wiring Diagram LSU090HSV4 LSU120HSV4 Factory Wiring Field Wiring Optional ...

Page 25: ...ue to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Wiring Diagram LSU180HSV4 ...

Page 26: ...etpoints fan speed and air flow direction for up to 16 indoor units Programmable schedule with 5 events per day with control of occupied unoccupied on off mode setpoints and fan speed Advanced functions include two setpoint autochangeover minimum difference between setpoints setback timed override target energy consumption display check energy display and master slave LG Programmable Thermostat PR...

Page 27: ...ck Power Save Run Status Error Status 2 2 Dry Contact Unit for 24V Thermostat PDRYCB300 On Off Thermo On Off Mode Fan Speed Run Status Error Status Enables the indoor unit to be controlled and monitored by a third party thermostat or controller PI 485 V net Control Integration Board PMNFP14A0 Outdoor Unit Control integration to LG V net controls AC Smart Premium ACP BACnetTM LonWorksTM etc Digital...

Page 28: ... Input Output Power Conn Description AC Smart IV PACS4B000 128 16 128 1 2 DI 2 DO 24 VAC Monitors operates indoor units through a touch screen Manages up to 128 devices Advanced functions include programmable schedules temperature setpoint range lock remote controller lock run time limit manual control and scheduling of digital output kit peak demand control visual floor plan navigation web access...

Page 29: ...out the need for a separate interface device The main screen for LGMV shall allow user to view the following real time data on one screen Additional screens can be accessed by tabs on the main screen 1 Cycleview Graphic of internal components including 2 Setting Converts metric values to imperial values 3 Making Data Recording of real time data to a separate file created to be stored on the user s...

Page 30: ...l Mounted Engineering Manual Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ...

Page 31: ...PERFORMANCE DATA Cooling Capacity on page 32 Heating Capacity on page 34 Air Flow and Temperature Distributions Graphs on page 35 ...

Page 32: ... TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI 14 6 86 5 52 0 38 7 37 5 93 0 39 7 88 6 35 0 40 8 40 6 76 0 42 8 63 6 95 0 43 9 42 7 59 0 45 9 94 8 00 0 46 23 7 36 5 93 0 38 7 91 6 37 0 39 8 46 6 81 0 40 9 01 7 26 0 41 9 27 7 46 0 43 10 12 8 14 0 44 10 67 8 59 0 46 25 7 47 6 01 0 39 8 02 6 45 0 40 8 57 6 90 0 41 9 12 7 34 0 42 9 37 7 54 0 44 10 22 8 23 0 45 10 77 8 67 0 47 30 7 76 6 24 0 42 8 3...

Page 33: ... 10 18 36 14 78 1 14 19 11 15 38 1 17 19 66 15 82 1 21 21 02 16 92 1 25 22 57 18 17 1 29 80 15 75 12 68 1 11 16 84 13 56 1 15 17 93 14 44 1 18 18 75 15 09 1 22 19 47 15 68 1 26 20 75 16 70 1 31 22 20 17 87 1 35 85 15 33 12 34 1 19 16 42 13 22 1 23 17 51 14 09 1 27 18 38 14 80 1 31 19 11 15 38 1 35 20 48 16 48 1 40 21 87 17 61 1 44 90 14 91 12 00 1 24 16 00 12 88 1 28 17 08 13 75 1 32 18 02 14 50 1...

Page 34: ... 65 6 12 0 65 0 1 7 39 0 73 7 16 0 73 7 09 0 73 7 02 0 72 6 97 0 72 6 83 0 71 6 66 0 71 6 5 7 82 0 77 7 58 0 76 7 50 0 76 7 43 0 75 7 37 0 75 7 22 0 74 7 05 0 74 10 9 8 16 0 79 7 91 0 78 7 83 0 78 7 75 0 77 7 69 0 77 7 54 0 77 7 36 0 77 16 14 8 42 0 80 8 16 0 79 8 08 0 79 8 00 0 78 7 94 0 78 7 78 0 77 7 59 0 77 19 17 8 59 0 82 8 33 0 81 8 24 0 81 8 16 0 81 8 10 0 81 7 94 0 80 7 75 0 80 24 23 9 42 ...

Page 35: ...t 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft 8 9ft 6 6ft 4 0ft 0ft Air velocity ft s Te mperature F 2 5 3 3 3 9 1 6 82 4 84 2 86 0ft 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft 0ft 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft 8 9ft 6 6ft 4 0ft 0ft 8 9ft 6 6ft 4 0ft 0ft Based on maximum air flow Air velocity ft s Te mperature F 2 5 4 1 3 3 4 9 1 6 77 75 2 73 4 8 9ft 6 6ft 4 0ft 0ft 0ft 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft 0ft 3 3ft 6 6ft ...

Page 36: ...hs LAN180HSV4 Air velocity ft s 19 7ft 23ft 26 2ft 19 7ft 23ft 26 2ft Te mperature F 2 5 4 1 3 3 4 9 1 6 77 75 2 73 4 8 9ft 6 6ft 4 0ft 0ft 8 9ft 6 6ft 4 0ft 0ft 0ft 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft 0ft 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft Air velocity ft s Te mperature F 2 5 4 1 3 3 4 9 1 6 82 4 84 2 86 87 8 8 9ft 6 6ft 4 0ft 0ft 8 9ft 6 6ft 4 0ft 0ft 0ft 3 3ft 6 6ft 9 8ft 13 1ft 16 4ft 19 7ft 23ft 26 ...

Page 37: ... Equipment Selection Procedure on page 38 Building Ventilation Design Guide on page 40 Placement Considerations on page 42 Application Guidelines ...

Page 38: ...nt Selection Procedure Cooling Heating Correction Factors For Single Zone Art Cool Mirror systems calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit Also de termine the elevation difference of the indoor unit above or below the outdoor unit Find corresponding cooling or heating capacity correction factors as shown in Figures 5 through 8 Multiply the correct...

Page 39: ...U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Cooling Heating 18k 20 65 6 30 98 4 To tal Pipe Length m ft 100 95 90 7 5 24 6 7 5 24 6 20 65 6 30 98 4 100 95 18k To tal Pipe Length m ft Capacity Capacity Equipment Selection Procedure Figure 7 LA180HSV4 Cooling Coefficient Factor Figure 8 LA180HSV4 Heating Coefficient Factor ...

Page 40: ...ds using the DDOAS method in all installations Ceiling Diffuser Outdoor Air Unit ERV Outdoor Air Wall Mount Inverter Intake Grill Figure 9 Decoupled Dedicated Outdoor System Diagram Methodology illustrations are for examples only and do not depict actual indoor units for the specific outdoor unit pairing These are generic illus trations to show ventilation design only Building Ventilation Design G...

Page 41: ...he building and outdoor air is drawn into occupied spaces through a wall louver or gravity roof intake hood Supply fans can also be used to push the outdoor air into the space and building positive pressure will vent the exhaust air through louvers or roof mounted exhaust hoods Outdoor air is neither cooled nor heated before entering the building Figure 11 Advantages Outdoor air may be manually co...

Page 42: ...hat its airflow fans are not buried by direct heavy snowfall If snow piles up and blocks the airflow the system may malfunction 3 Remove any snow that has accumulated by 4 inches or more on the top of the outdoor unit 4 Place the outdoor unit on a raised platform at least 20 inches higher than the average annual snowfall for the area In environments where there is a possibility of heavy snow the f...

Page 43: ...onnection Top of Unit Foundation Mounting Platform The underlying structure or foundation must be designed to sup port the weight of the unit Avoid placing the unit in a low lying area where water may accumulate When installing the outdoor unit on the wall or roof top anchor the mounting base securely to account for wind earthquake or vibration Tie Downs and Wind Restraints The strength of the Duc...

Page 44: ... outdoor unit under an overhang awning sunroof or other roof like structure observe the clearance requirements as shown in Figure 15 for height in relation to the unit This clearance ensures that heat radiation from the condenser is not restricted around the unit Adhere to all clearance requirements if installing the unit on a roof Be sure to level the unit and ensure that the unit is adequately a...

Page 45: ...ield Supplied Copper Tubing on page 47 Refrigerant Piping System Layout on page 48 Piping Connections on page 50 Electrical Connections on page 52 Mechanical Specifications on page 54 Acronyms on page 55 Refrigerant Piping Design Layout Best Practices ...

Page 46: ...st total equivalent piping length 6 6 feet 6 6 feet 9 8 feet Distance between fittings and indoor units or outdoor units 20 inches 20 inches 20 inches Elevation All Elevation Limitations are Measured in Actual Feet If outdoor unit is above indoor unit 32 8 feet 32 8 feet 49 2 feet If outdoor unit is below indoor unit 32 8 feet 32 8 feet 49 2 feet Additional Refrigerant Needed oz ft 0 22 0 22 0 38 ...

Page 47: ...h of each pipe segment Using Elbows Field supplied elbows are allowed as long as they are long radius and designed for use with R410A refrigerant The designer should be cautious with the quantity and size of fittings used and must account for the additional pressure losses in equivalent pipe length calculation The equivalent pipe length of each elbow must be added to each pipe segment See Table 22...

Page 48: ...en the hangers and insulation Field provided pipe supports must meet local codes If allowed by code use fiber straps or split ring hangers suspended from the ceiling on all thread rods fiber straps or split ring hangers can be used as long as they do not compress the pipe insulation Place a second layer of insulation over the pipe insulation jacket to prevent chafing and compression of the primary...

Page 49: ...filtration Refrigerant pipe installed inside underground casing must be continuous without any joints Underground refriger ant pipe must be located at a level below the frost line Figure 25 Typical Arrangement of Refrigerant Pipe and Cable s in a Utility Conduit Table 23 Utility Conduit Sizes Inches 1 OD pipe diameter in inches Values in parenthesis indicate OD of pipe with insulation jacket 2 Dia...

Page 50: ...minants Tighten the flare nut initially by hand 4 Finish tightening the flare nut with a torque wrench until the wrench clicks See Figure 28 Tubing cover Figure 26 LSU090HSV4 LSU120HSV4 Outdoor Unit Connection Cover Removal Outside Diameter Inches Torque Lbs ft 1 4 13 18 3 8 24 6 30 4 1 2 39 8 47 7 5 8 45 6 59 3 3 4 71 6 87 5 Table 25 Torque Wrench Tightening Figure 27 LSU180HSV Outdoor Unit Conne...

Page 51: ...lines and vapor lines shall be insulated separately Insulation shall be a minimum 1 2 thick and thickness may need to be increased based on ambient conditions and local codes All insulation joints shall be glued with no air gaps Insulation material must fit snugly against the refrigeration pipe with no air space between it and the pipe Insulation passing through pipe hangers inside conduit and or ...

Page 52: ...Ensure you connect the wire firmly Loose wiring may cause unit malfunction the wires to burnout or the terminal to overheat and catch fire There is a risk of equipment malfunction or property damage Use outdoor and waterproof connection cable rated up to 300V for the connection between the indoor and outdoor unit to avoid damage to the unit Comply with local codes while running wire from the indoo...

Page 53: ... Mechanical Specifications on page 54 Acronyms on page 55 Technical Data ...

Page 54: ...check valves oil separator accu mulator four way reversing valve electronic controlled expansion valve EEV high and low side charging ports service valves and interconnecting piping Refrigeration Oil Control Heat Pump outdoor units have a centrifugal oil separator and controls to ensure suf ficient oil supply is maintained and that oil does not travel with the refrigerant Compressors The outdoor u...

Page 55: ...rcurrent Protection BUS Binary Unit System MSC Maximum Starting Current CFM Cubic Feet per Minute NC Noise Criterion regarding Sound Pressure Levels COP Coefficient Of Performance NEC National Electrical Code CR Combination Ratio ODU Outdoor Unit DB Dry Bulb PCB Printed Circuit Board dB A Decibels with A frequency weighting PCM Pre Coated Metal DDOAS Decoupled Dedicated Outdoor Air PDI Power Distr...

Page 56: ...swell Road Alpharetta Georgia 30009 www lg vrf com EM SZ ArtCoolMirror HSV4 3 15 Supersedes DFS EM AA 001 US_014B06 20001747 ISO 9001 2008 LG ELECTRONICS INC LG Electronics Commercial Products Support 1 888 865 3026 USA Follow the prompts for commercial A C products ...

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