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INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing the product.
Installation work must be performed 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
[Representative] LG Electronics 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
P/NO : MFL68165204
www.lg.com
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Table of Contents
Related Manuals for LG MULTI V IV PRO ARUN220LLN4
Summary of Contents for LG MULTI V IV PRO ARUN220LLN4
- Page 1 Original instruction [Representative] LG Electronics 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 www.lg.com P/NO : MFL68165204...
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Page 2: Tips For Saving Energy
TIPS FOR SAVING ENERGY CAUTION It can result in minor injury or product damage Here are some tips that will help you to minimize the power consump- when the directions are ignored tion when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions given below: WARNING •... - Page 3 • Use the correctly rated breaker or fuse. the room could result. - There is risk of fire or electric shock. • Do not turn on the breaker or power under • Prepare for strong wind or earthquake and condition that front panel, cabinet, top install the unit at the specified place.
- Page 4 Operation CAUTION • Do not use the air conditioner in special en- nstallation vironments. • Always check for gas (refrigerant) leakage - Oil, steam, sulfuric smoke, etc. can signifi- after installation or repair of product. cantly reduce the performance of the air - Low refrigerant levels may cause failure of conditioner or damage its parts.
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Page 5: Table Of Contents
power switch turned on during the opera- TABLE OF CONTENTS tional season. TIPS FOR SAVING ENERGY • Do not touch any of the refrigerant piping IMPORTANT SAFETY INSTRUCTIONS during and after operation. - It can cause a burn or frostbite. INSTALLATION PROCESS •... -
Page 6: Installation Process
Preparation of contract drawings remote controller and option. ity by outdoor ambient temperature. All model selection for capacity is not responsibility of LG. 2) We can guarantee the operation only within 130% combina- Take account of gradient tion ratio. If you want to connect more than 130% combina-... - Page 7 Unit 2 Outdoor Unit Unit 4 Outdoor Unit System(HP) System(HP) Combination Unit ARUN320LLS4 ARUN340LLS4 ARUN360LLS4 Combination Unit ARUN620LLS4 ARUN640LLS4 ARUN660LLS4 Model ARUN200LLS4 ARUN200LLS4 ARUN200LLS4 ARUN180LLS4 ARUN180LLS4 ARUN180LLS4 Independent Unit ARUN120LLS4 ARUN140LLS4 ARUN160LLS4 ARUN160LLS4 ARUN180LLS4 ARUN180LLS4 Model Independent Unit ARUN140LLS4 ARUN140LLS4 ARUN160LLS4 7.6 ×...
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Page 8: Environment-Friendly Alternative Refrigerant R410A
n Space Saving Model ENVIRONMENT-FRIENDLY ALTER- Unit 2 Outdoor Unit NATIVE REFRIGERANT R410A System(HP) ARUN220LLN4 ARUN420LLN4 ARUN440LLN4 Combination Unit The refrigerant R410A has the property of higher operating pressure in ARUN220LLN4 ARUN220LLN4 ARUN220LLN4 Model comparison with R22. Independent Unit ARUN200LLS4 ARUN220LLN4 Therefore, all materials have the characteristics of higher resisting 7.6 ×... -
Page 9: Installation Space
Seasonal wind and cautions in winter INSTALLATION SPACE • Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well. Individual Installation • Get ready for seasonal wind or snow in winter even in other areas. During the installation of the unit, consider service, inlet, and outlet and •... -
Page 10: Installation
Ⓐ The corner part must be fixed firmly. Otherwise, the support for the INSTALLATION installation may be bent. Ⓑ Get and use M10 Anchor bolt. • Install at places where it can endure the weight and vibration/noise Ⓒ Put Cushion Pad between the outdoor unit and ground support for of the outdoor unit. - Page 11 Flare nut Copper tube Copper Slanted Uneven Rough tube Burrs removal 90° Opening shutoff valve - Completely remove all burrs from the cut cross section of pipe/tube. - Put the end of the copper tube/pipe to downward direction as you re- Remove the cap and turn the valve counter clockwise with the move burrs in order to avoid to let burrs drop in the tubing.
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Page 12: Plumbing Materials And Storage Methods
Plumbing materials and storage methods CAUTION Pipe must be able to obtain the specified thickness and should be 1 Always use the nitrogen.(not use oxygen, carbon dioxide, and used with low impurities. a Chevron gas): Please use the following nitrogen pressure Also when handling storage, pipe must be careful to prevent a frac- 0.02 MPa Oxygen –... -
Page 13: Pipe Connections Between Indoor And Outdoor Unit
Pipe Drawing Out during Single / Series connection PIPE CONNECTIONS BETWEEN Method of drawing out pipes on the front side INDOOR AND OUTDOOR UNIT - Proceed with the pipe work as shown in the below figure for front side pipe drawing out. - Pipe connections can be done on the front side or on the side accord- ing to the installation environments. -
Page 14: Refrigerant Piping System
Refrigerant piping system Header Method Slave3 Ⓐ : Outdoor Unit Slave2 Slave1 1 Outdoor Units Ⓑ : Header branch Master Ⓒ : Indoor Units ODU Capacity G G G 10 m or Master ≥ Slave1 ≥ Slave2 ≥ Slave3 Ⓓ : Sealing less Y branch method Ⓔ... - Page 15 (Table 2) Refrigerant pipe diameter from outdoor unit to first branch. (A) WARNING Increased Pipe Diameter Upward Standard Pipe • In case of pipe diameter B connected after first branch is bigger than Outdoor unit When equivalent pipe length is 90m When level difference is Diameter the main pipe diameter A, B should be of the same size with A.
- Page 16 - The pipes between the outdoor units must maintain horizontal level- CAUTION ness or give an inclination to prevent a back flow toward the slave • Bending radius should be outdoor unit. Otherwise, the unit may not operate properly. 500mm or more 500mm or more at least twice the diameter of the pipe.
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Page 17: Refrigerant Charging
(Example 3) WARNING Toward indoor unit • Regulation for refrigerant leakage : The amount of refrigerant leakage should satisfy the following equation for human safety. Total amount of refrigerant in the system ≤0.44 (kg / m Oil Trap Volume of the room at which Indoor Unit of the least capacity is installed If the above equation can not be satisfied, then follow the follow- ing steps. -
Page 18: Distribution Method
Distribution Method Branch pipe Fitting Horizontal Distribution Y branch Slave Slave Ⓐ To Branch Piping or Indoor Unit Master Master To Outdoor Unit Ⓑ To Outdoor Unit To Branch Piping or Indoor Unit Slave Master • Ensure that the branch pipes are attached horizontally or vertically Slave Slave 3rd main pipe distribution... -
Page 19: Leak Test And Vacuum Drying
• Header should be insulated with the insulator in each kit. Header [unit:mm] Models Gas pipe Liquid pipe Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure. ID12.7 ID6.35 ID12.7 ID6.35 ID6.35 4 branch ID12.7... -
Page 20: Vacuum Mode
WARNING WARNING Use a vacuum pump or Inert(nitrogen) gas when doing leakage Use a vacuum pump or Inert(nitrogen) gas when doing leakage test test or air purge. Do not compress air or Oxygen and do not use or air purge. Do not compress air or Oxygen and do not use Flamma- Flammable gases. -
Page 21: Heat Insulation Of Refrigerant Piping
Heat insulation of refrigerant piping Penetrations Inner wall (concealed) Outer wall Outer wall (exposed) Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant poly- ethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves. -
Page 22: Control Box And Connecting Position Of Wiring
CAUTION Outdoor Unit Outdoor Unit • Use the 2-core shield cables for communication cables. Never use them together with power cables. Indoor Indoor Indoor Indoor Unit Unit • The conductive shielding layer of cable should be grounded to the Unit Unit metal part of both units. -
Page 23: Communication And Power Cables
WARNING CAUTION The temperature sensor for outdoor air should not be exposed to If apparatus is not properly earthed then there is always a risk of direct sunlight. electric shocks, the earthing of the apparatus must be carried out by - Provide an appropriate cover to intercept direct sunlight. -
Page 24: Point For Attention Regarding Quality Of The Public Electric Power Supply
Point for attention regarding quality of the public electric power supply This equipment complies with respectively: • EN/IEC 61000-3-11 (1) provided that the system impedance Zsys is less than or equal to Zmax and • EN/IEC 61000-3-12 (2) provided that the short-circuit power Ssc is greater than or equal to the minimum Ssc alue at the interface point between the user's supply and the public system. -
Page 25: Field Wiring
[Outdoor Units] Power supply (3Ø 4-wire) [Master] [Slave1] [Slave2] [Slave3] (Main Switch) (L1) (L2) (L3) Switch Fuse Indoor Power supply (1Ø 2-wire) Power cable (4-Wires Cable) Power cable Field Wiring (2-Wires Cable) WARNING Communication cable (2-Wires Cable) Pull Box Pull Box Pull Box Pull Box (Installer option) - Page 26 Example) Connection of power and communication cable (UX6) Example) Connection of transmission wire [BUS type] [STAR type] Left Side Right Side - Connection of communication - Abnormal operation can be cable must be installed like caused by communication de- Main power Main power Main power Main power...
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Page 27: Checking The Setting Of Outdoor Units
The Procedure of Automatic Addressing Checking the setting of outdoor units Checking according to dip switch setting Power On - You can check the setting values of the Master outdoor unit from the 7 segment LED. The dip switch setting should be changed when the Waiting 3 minutes power is OFF. -
Page 28: Group Number Setting
Group Number setting Right side Left side Group Number setting for Indoor Units - Confirm the power of whole system(Indoor Unit, Outdoor Unit) is Switch (Up) OFF, otherwise turn off. - The communication cables connected to CEN.A and CEN.B terminal Switch (Down) should be connected to central control of Outdoor Unit with care for their polarity (A-A, B-B ). -
Page 29: Overall Defrost Mode
RPM/ Time Settings Setting the ODU address Step Judgment Time (Hr) Operation Time(Hr) Mode setting method 10.5 Master unit PCB DIP switch on : No.5 10.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn5”... -
Page 30: Target Pressure Adjusting
Target pressure adjusting High Efficiency cooling mode Mode setting method According to the change of outdoor temperature, switch the target pressure for the high energy efficiency. Master unit PCB DIP switch on : No.5 Mode setting method Select the mode using ‘▶’, ‘◀’ Button : “Func”... -
Page 31: Smart Load Control
Smart Load Control Comfort Cooling Function In the cooling mode, this optional function enables the IDU to operate According to the difference of indoor temperature and setting tempera- continuously with out thermo off to reduce ODU power consumption. ture, switch the target pressure to increase efficiency. Comfort cooling function setting method Mode setting method Master unit PCB DIP switch on : No.5... -
Page 32: 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. - Page 33 Display Title Cause of Error Low Pressure of Master Outdoor Unit Low Pressure of Master Outdoor Unit Master Outdoor Unit Low Compression Ratio Lim- Master Outdoor Unit Low Compression Ratio Limited ited Master Outdoor Unit Inverter Compressor CT Sen- Master Outdoor Unit Inverter Compressor CT Sensor open or sor Fault short Master Outdoor Unit Inverter Compressor1 Dis-...
- Page 34 Communication Error Between Master Outdoor Failing to receive Slave Unit signal at main PCB of Master Out- Unit and Other Outdoor Unit door Unit Master Outdoor Unit Fan PCB Communication Failing to receive fan signal at main PCB of Master unit. Error Master Outdoor Unit FAN IPM Fault Error Instant Over Current at Master Outdoor Unit Fan IPM...
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Page 35: Caution For Refrigerant Leak
- With partition and without opening which serve as passage of air to CAUTION FOR REFRIGERANT LEAK adjoining room Outdoor unit The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. -
Page 36: Installation Guide At The Seaside
Model Designation INSTALLATION GUIDE AT THE SEASIDE Product information • Product Name : Air conditioner CAUTION • Model Name : • Air conditioners should not be installed in areas where Product Sales Name / Model Factory Name corrosive gases, such as acid or alkaline gas, are produced. •...