LG Air Conditioner Installation Manual
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LG Air Conditioner Installation Manual

LG Air Conditioner Installation Manual

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LG
Air Conditioner

INSTALLATION MANUAL

website http://www.lgservice.com
IMPORTANT
• 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.
LG

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Summary of Contents for LG Air Conditioner

  • Page 1: Installation Manual

    Air Conditioner INSTALLATION MANUAL IMPORTANT • 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...
  • Page 2 Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your finger. When installing...

  • Page 3: Table Of Contents

    Air Conditioner Installation Manual CONTENTS Safety Precautions ....................4 Installation of Indoor, Outdoor unit ..............7 The indoor unit installation ................10 Remote controller installation................13 Wiring connection .....................16 Flaring Work and Connection of Piping ............20 Installation to decorative panel................23 Indoor unit drain piping ..................25 Test running .......................29...

  • Page 4: Safety Precautions

    To prevent the injury of the user or other people and property damage, the following instructions must be followed. Be sure to read before installing the air conditioner. Be sure to observe the cautions specified here as they include important items related to safety.
  • Page 5 Safety Precautions Do not install the product at a place that there Use caution when unpacking and installing. is concern of falling down. • Otherwise, it may result in personal injury. • Sharp edges may cause injury. Operation Do not share the outlet with Do not use the damaged Do not modify or extend the other appliances.
  • Page 6 Use a soft cloth to clean. Do not use wax, ventilation sometimes. thinner, or a strong detergent. • Otherwise, it may do harm to your health. • The appearance of the air conditioner may deteriorate, change color, or develop surface flaws. Do not use an appliance for special purposes...

  • Page 7: Installation Of Indoor, Outdoor Unit

    Installation of Indoor, Outdoor Unit Installation of Indoor, Outdoor Unit Selection of the best location 1. Indoor unit Cassette type • There should not be any heat source or steam near the unit. • There should not be any obstacles to prevent the air circulation.

  • Page 8: Outdoor Unit

    3. Do not place animals and plants in the path of the warm air. 4. Take the air conditioner weight into account and select a place where noise and vibration are minimum.
  • Page 9 Installation of Indoor, Outdoor Unit 3. Piping length and the elevation Pipe Size Length A Elevation B *Additional Capacity Unit : mm(inch) Unit : m(ft) Unit : m(ft) refrigerant Unit : g/m(oz/ft) Liquid Standard Max. Standard Max. 50(164) 30(98) cassette type cassette type 24k Btu/h 15.88(5/8)

  • Page 10: The Indoor Unit Installation

    • Make sure that ventilation fan is enough to cover all noxious gases from this place. • Ensure enough distance from the cooking room to install the air conditioner in such a place where it may not suck oily steam.
  • Page 11 (W3/8 or M10) (accessory) Ceiling board Ceiling board Spring washer (M10) Keep the length of 15~18mm(5/8~3/4 inch) between the air conditioner bottom surface and the ceiling surface Flat washer for M10 (accessory) Set screw of paper model (4 pieces) (W3/8 or M10)

  • Page 12: Floor Standing Type

    The hole should be sightly slant to the outdoor side. 3. Insert the plastic tube through the hole. Tilt 4. Cut the extruded outside part of the plastic Cut if necessary tube, if necessary. More than 15mm(0.6 inch) 12 Air Conditioner...

  • Page 13: Remote Controller Installation

    Remote controller installation Remote controller installation Wired remote controller installation • Since the room temperature sensor is in the remote controller, the remote controller box should be installed in a place away from direct sunlight, high humidity and direct supply of cold air to maintain proper space temperature.
  • Page 14 And when you pull the driver in the front direction, the wired remote controller will be separated. 14 Air Conditioner...
  • Page 15 Remote controller installation 5. Use the connecting cable to connect the indoor unit and the wired remote controller. Check whether the connector is connected correctly. Indoor unit side Connecting cable 6. When the distance between the wired remote controller and the indoor unit is 10m and above, use the extension cable.

  • Page 16: Wiring Connection

    ETL recognized and CSA certified. RECOMMENDATION: When using the separate wires as the power cord, please secure the separate wires into the control box panel using tie wraps to hold all wires together in place. 16 Air Conditioner...
  • Page 17 2. Open the Control Box Cover (A) with Driver, ( ) as shown in Fig. 2. 3. Connect the Cables (LG doesn't supply) to the terminal Block of Indoor Unit, as shown in Fig. 3. 4. Install a power supply line or connecting cables as the Fig. 4 in order to prevent the connecting wires from being cut by sharp edge of the hole.
  • Page 18 Wiring Connection (Fig.4) Cap(Remove) 18 Air Conditioner...
  • Page 19 1. All wiring must comply with LOCAL REGULATIONS. 2. Select a power source that is capable of supplying the current required by the air conditioner. 3. Feed the power source to the unit via a distribution switch board designed for this purpose.

  • Page 20: How To Connect Wiring To The Terminals

    Connecting Cable round terminal. (4) Position the round terminal wire, and replace Loosening the Fastening the and tighten the terminal screw using a terminal block wire tightly screw screwdriver. Connecting cable 20 Air Conditioner...

  • Page 21: Flaring Work And Connection Of Piping

    Flaring Work and Connection of Piping Flaring Work and Connection of Piping Flaring work Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the Copper Slanted Uneven Rough tube following procedure. 90° 1) Cut the pipes and the cable. Use the accessory piping kit or the pipes purchased locally.
  • Page 22 Union gas side valves. CAUTION: Use two wrenches and tighten with regular torque.' Outside diameter torque kgf . m(lbf . ft) inch 1.8~2.5 (13~18) Ø6.35 3.4~4.2 (24~30) Ø9.52 5.5~6.6 (40~48) Ø12.7 Ø15.88 6.3~8.2 (46~59) Ø19.05 9.9~12.1 (72~88) 22 Air Conditioner...

  • Page 23: Installation To Decorative Panel

    Installation to Decorative Panel Installation to Decorative Panel The decorative panel has its installation direction. Before installing the decorative panel, always remove the paper template. 1. Remove the packing and take out air inlet grille from front panel. Front grille 2.
  • Page 24 The position marking on PCB is as: Display connector : CN-DISPLAY Vane control connector: CN-VANE 1,2 CN-VANE 1,2 CN-DISPLAY 8. Close the cover for control box. 9. Install the air inlet grille and Filter on the panel. 24 Air Conditioner...

  • Page 25: Indoor Unit Drain Piping

    Indoor Unit Drain Piping CAUTION: Install certainly the decorative panel. Cool air leakage causes sweating. Water drops fall. Good example Bad example Air conditioner unit Air conditioner Cool air leakage unit (no good) Ceiling Ceiling board board Decorative Decorative panel...

  • Page 26: Cassette Type

    (32-1/2 inch) with thickness more than 8mm(5/16 inch). Drain test The air conditioner uses a drain pump to drain water. Use the following procedure to test the drain pump operation: • Connect the main drain pipe to the exterior and...
  • Page 27 [over 120°C(248°F)]. Fastening band 2. Precautions in high humidity (accessory) circumstance: This air conditioner has been tested according to the "KS Standard Conditions with Mist" and confirmed that Refrigerant piping there is not any default. However, if it is...
  • Page 28 2. When installing on the wall, roof or rooftop, anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake. 3. If the vibration of the unit is transmitted to the hose, secure the unit with an anti-vibration rubber. 28 Air Conditioner...

  • Page 29: Test Running

    1. PRECAUTIONS IN TEST RUNNING • The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated. CAUTION For test run, carry out the cooling operation firstly even during heating season.
  • Page 30 In case of duct type, the Airflow UP/DOWN function is not displayed. During test run mode, receiving signal from wireless remote controller will release this operation. If you press any kind of button, Test Run mode will be released. 30 Air Conditioner...

  • Page 31: Hand Over

    N: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover.

  • Page 32: Leakage Test And Evacuation

    Usually, the cylinder is used in a vertical standing position. Nitrogen gas cylinder(in vertical standing position) : Leakage testing shoud be done for NOTICE each indoor unit connection set, separately. ❈ The figure can be changed according to model. 32 Air Conditioner...
  • Page 33 ❈ The figure can be changed according to model. side service valves and fasten them tight. This completes air purging with a vacuum pump. The air conditioner is now ready for test running. NOTICE : Repeat evacuation procedure for each indoor unit.

  • Page 34: Installation Guide At The Seaside

    3) 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 particles stuck on the...
  • Page 35 P/No.: MFL40910613...

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