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LG Multi V Space II ARUN053GF2 Installation Manual
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LG Multi V Space II ARUN053GF2 Installation Manual

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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 thorough-
ly.
P/NO : MFL67891401
Copyright © 2013 - 2018 LG Electronics Inc. All Rights Reserved.
www.lg.com

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Summary of Contents for LG Multi V Space II ARUN053GF2

  • Page 1 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 thorough- www.lg.com P/NO : MFL67891401 Copyright © 2013 - 2018 LG Electronics Inc. All Rights Reserved.

  • Page 2: Tips For Saving Energy

    Installation TIPS FOR SAVING ENERGY • Have all electric work done by a licensed electrician according to "Elec- tric Facility Engineering Standard" and "Interior Wire Regulations" and the Here are some tips that will help you minimize the power consumption instructions given in this manual and always use a special circuit.

  • Page 3: Table Of Contents

    CAUTION TABLE OF CONTENTS Installation TIPS FOR SAVING ENERGY • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. IMPORTANT SAFETY INSTRUCTIONS • Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.

  • Page 4: Installation Process

    INSTALLATION PROCESS Power Supply: Outdoor Unit 1 Phase 208/230 V 60 Hz Indicate clearly who is to be responsible for switch settings Determination of division work Model ARUN053GF2 Make relationship between outdoor, indoor, remote controller, HP(Equivalent horsepower) Preparation of contract drawings and option connections clear.

  • Page 5: Installation Space

    INSTALLATION SPACE Recommended Effective Opening Ratio(E.O.R) of Louver [Unit:mm(inch)] 1,150(45.3) 500(19.7) θ θ • ho = h * COSθ • Total Area(A) = H * W • Effective Area(Af) = ho * W * N • Opening Ratio(n) = Af/A ’...

  • Page 6: Installation

    INSTALLATION WARNING • Be sure to install unit in a place strong enough to withstand its Location of anchor bolt weight. Any lack of strength may cause unit to fall down, resulting in a • Installation foot (Location of anchor bolt) personal injury.
  • Page 7 Check Closing shutoff valve - Compare the flared work with figure below. 1. Remove the cap and turn the valve clockwise with the hexagon - If flare is noted to be defective, cut off the flared section and do flar- wrench.

  • Page 8: Refrigerant Piping Installation

    REFRIGERANT PIPING INSTALLATION Caution 1. Use the following materials for refrigerant piping. WARNING • Material: Seamless phosphorous deoxidized copper pipe • Wall thickness : Comply with the relevant local and national regula- Always use extreme care to prevent the refrigerant gas (R410A) tions for the designed pressure 3.8Mpa(551.1psi).

  • Page 9: Caution

    9. The Multi V will stop due to an abnormality like excessive or insuffi- Piping parts Name Selection of pipe size cient refrigerant. At such a time, always properly charge the unit. Size of main pipe When servicing, always check the notes concerning both the piping Outdoor unit length and the amount of additional refrigerant.
  • Page 10 Header Method CAUTION Example : 6 Indoor Units • It is recommended that indoor unit is installed at lower position connected than the header. Ⓐ : Outdoor Unit Ⓑ : Header L70 m (230 ft) WARNING Ⓒ : Indoor Units 40 m (131 ft) Ⓓ...

  • Page 11: Distribution Method

    WARNING The others Regulation for refrigerant leakage : the amount of refrigerant leakage should satisfy the following equation for human safety. Total amount of refrigerant in the system ≤00.44 kg/m Volume of the room at which (0.027 lb/ft Indoor Unit of the least capacity is installed If the above equation can not be satisfied, then follow the follow- ing steps.
  • Page 12 • When the number of indoor units to be connected to the branch [Unit:mm(inch)] pipes is less than the number of branch pipes available for connec- tion then cap pipes should be fitted to the surplus branches. Models Gas pipe Liquid pipe I.D19.05(3/4) I.D19.05(3/4)

  • Page 13: Leak Test And Vacuum Drying

    Leak Test and Vacuum drying Vacuum Vacuum drying should be made from the service port provided on the outdoor Leak test unit’s service valve to the vacuum pump commonly used for liquid pipe, gas pipe and high/low pressure common pipe. (Make Vacuum from liquid pipe, gas Leak test should be made by pressurizing nitrogen gas to pipe and high/low pressure common pipe with the service valve closed.) 3.8MPa(551.1psi).

  • Page 14: Vacuum Mode

    Vacuum Mode Bad example This function is used for creating vacuum in the system after compres- • Do not insulate gas or low pressure pipe and liquid or highpres- sor replacement, ODU parts replacement or IDU addition/replacement. sure pipe together. Ⓐ...

  • Page 15: Electrical Wiring

    ELECTRICAL WIRING CAUTION • Use the 2-core shield cables for communication lines. Never use Areas of Caution them together with power cables. • Never use multi-core cable 1. Follow ordinance of your governmental organization for technical • As this unit is equipped with an inverter, to install a phase leading standard related to electrical equipment, wiring regulations and guid- capacitor not only will deteriorate power factor improvement effect, ance of each electric power company.

  • Page 16: Communication And Power Lines

    Communication and Power Lines WARNING Communication cable • Follow ordinance of your governmental organization for techni- - Types : shielding wire cal standard related to electrical equipment, wiring regulations - Use wires of size : over 1.25 mm (0.002 in and guidance of each electric power company.
  • Page 17 Example Connection of Communication Cable 60 Hz 3 Phase 4 Wires Power line(R, S, T, N) Communication line (3 line): Wired remote control Single Phase of power supply line(L, N) Power supply switch (Switch fuse : ELCB) Communication line (2 shield line): Between Indoor Unit and Outdoor Unit Power supply 1 Phase 208/230 V...
  • Page 18 Location of setting Switch Setting the DIP switch Heat pump Location of setting Switch - If you set the Dip switch when power is on, the changed setting will not be applied immediately. Main PCB The changed setting will be enabled only when Power is reset or by pressing Reset button.

  • Page 19: Automatic Addressing

    Automatic Addressing Group Number setting The address of indoor units would be set by auto addressing Group Number setting for Indoor Units - Wait for 3 minutes after applying power supply (main and sub outdoor - Confirm the power of whole system(Indoor Unit, Outdoor Unit) is unit, indoor unit).

  • Page 20: Test Run

    Without Cool/Heat Selector Installation and Connection In case, try to set mode without Cool/Heat Selector and try to use The phenomena from main component failure other switch except from LG Outdoor Cool/Heat Selector in field. Connect signal terminal block as below figure and description. Compo-...

  • Page 21: Vacuum Mode

    External static pressure compensation mode Note 1) Select appropriate RPM referencing noise table. This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan discharge of ODU. Setting Judgment Operation Step Fan Max RPM Black...

  • Page 22: 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 23 Display Title Cause of Error Outdoor Unit Inverter Compressor CT Sensor Fault Outdoor Unit Inverter Compressor CT Sensor open or short Outdoor Unit Inverter Compressor Discharge Tem- Outdoor Unit Inverter Compressor Discharge Temperature Sen- perature Sensor Fault sor open or short Outdoor Unit Low Pressure Sensor Fault Outdoor Unit Low Pressure Sensor open or short Outdoor Unit High Pressure Sensor Fault...

  • Page 24: Caution For Refrigerant Leak

    Outdoor Unit Fan PCB Communication Error Failing to receive fan signal at main PCB of unit. Outdoor Unit FAN IPM Fault Error Instant Over Current at Outdoor Unit Fan IPM Outdoor Unit Fan DC Link Low Voltage Error Outdoor Unit Fan DC Link Input Voltage is under 380V Outdoor Unit Liquid pipe Temperature Sensor Liquid pipe temperature sensor of outdoor unit is open or short Error...

  • Page 25: Installation Guide At The Seaside

    Select a well-drained place. * 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt parti- cles stuck on the heat exchanger by using water.

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