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LG L4UC488FA0 Installation Manual

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LG
Air Conditioner
INSTALLATION MANUAL
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• Installation work must be performed in accordance with
the national wiring standards by authorized personnel
only.
LG

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Summary of Contents for LG L4UC488FA0

  • Page 1 website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html Air Conditioner INSTALLATION MANUAL IMPORTANT • Please read this installation manual completely before installing the product. • When the power cord is damaged, replacement work shall be performed by authorized personnel only. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only.

  • Page 2: Table Of Contents

    Multi Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Requirements Required Tools The following should be always observed for safety ........3~6 Installation of indoor, outdoor unit .......7~9 Level gauge Screw driver Electric drill Hole core drill (ø50mm) Horizontal meter Flaring work and connection of piping.....10~13 Flaring tool set Specified torque wrenches...

  • Page 3: The Following Should Be Always Observed For Safety

    Installation Parts Provided Installation Parts Provided Standard Type Installation plate Type "A" screws and plastic anchors Type "B" screws Holder Remote Control Air Intake (side, rear) more than 30cm more than more than 30cm 30cm Control cover Connecting wire Connection pipe Drain hose more than 70cm...
  • Page 4 Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury.
  • Page 5 Safety Precautions Do not modify or extend the power cable. Be cautious when unpacking and installing the product. • There is risk of fire or electric shock. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.
  • Page 6 Safety Precautions CAUTION Installation Always check for gas (refrigerant) leakage after Install the drain hose to ensure that water is installation or repair of product. drained away properly. • Low refrigerant levels may cause failure of • A bad connection may cause water leakage. product.

  • Page 7: Installation Of Indoor, Outdoor Unit

    Installation of Indoor, Outdoor Unit Installation of Indoor, Outdoor Unit Read completely, then follow step by step. Select the best location Indoor unit 1. Do not have any heat or steam near the unit. More than More than 5cm 2. Select a place where there are no obstacles in front of the unit.
  • Page 8 Model Max total piping Additional Charge [Outdoor Unit] length A,B,C,D,E Ø 9.52mm over Ø 12.7mm L4UC488FA0 7.5m 25m 25m 25m 25m 60m(A+B+C+D) over the total 30m pipe length 20g/m 30g/m Extra refrigerant = (Extended length - Rated length) x Additional refrigerant CAUTION: Capacity is based on standard length and maximum allowance length is on the basis of reliability.
  • Page 9 Installation of Indoor, Outdoor Unit How to fix installation plate The wall you select should be strong and solid enough to prevent vibration Installation Plate 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.

  • Page 10: Flaring Work And Connection Of Piping

    Flaring Work and Connection of Piping Flaring Work and Connection of Piping Flaring work Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes and the cable. 1.
  • Page 11 Flaring Work and Connection of Piping Check 1. Compare the flared work with figure below. Smooth all round Inside is shiny without scratches 2. If flare is noted to be defective, cut off the flared section and do flaring work again. = Improper flaring = Inclined Surface...
  • Page 12 Flaring Work and Connection of Piping Indoor unit installation 1. Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks of the rear top of the indoor unit with the Connecting cable upper edge of the installation plate.) Ensure that the hooks are properly seated on the Drain hose installation plate by moving it left and right.
  • Page 13 Flaring Work and Connection of Piping 3. Bundle the piping and drain hose together by Wrap with vinyl tape wrapping them with vinyl tape over the range Pipe within which they fit into the rear piping housing section. Vinyl tape(wide) Drain hose CAUTION: Installation Information (For right piping) For right piping, follow the instruction below.

  • Page 14: Connecting The Cable Between Indoor Unit And Outdoor Unit

    Connecting the Cable between Indoor Unit and Outdoor Unit Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unit. (General) Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection.
  • Page 15 ) (Fig. 2) 3. Connect the connecting pipe (Fig. 3) 4. Connect the cables (LG doesn't supply) to the terminal block in the front panel. (Fig. 3) 5. Secure the panel (A) to the original position with the screw ( 6.
  • Page 16 Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Outdoor unit. 1. Open the control board cover from the Outdoor unit outdoor unit by removing the screws. 2. Connect wires to the terminals on the control board individually and secure the cables onto the control board with clamp.

  • Page 17: Checking The Drainage, Forming The Pipings And Long Pipe Setting

    Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the drainage To check the drainage. 1. Pour a glass of water on the evaporator. 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit.
  • Page 18 Checking the Drainage, Forming the Pipings and Long Pipe Setting Forming the piping Form the piping by wrapping the connecting portion of the indoor unit with insulation material and Gas side secure it with two kinds of vinyl piping tape. Main cable •...

  • Page 19: Air Purging

    Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5.
  • Page 20 Air Purging and Evacuation Soap water method 1. Remove the caps from the main service valves 2. Remove the service-port caps from the main service valves Gas side Liquid side 3. To open the main service valve turn the valve stem piping piping counterclockwise approximately 90°, wait for about...

  • Page 21: Test Running

    Test Running Test Running 1. Check that all tubing and wiring have been properly connected. 2. Check that the gas and liquid side service valves are fully open. Prepare remote control Remove the battery cover by pulling it according to the arrow direction. Insert new batteries making sure that the (+) and (–) of battery are installed correctly.
  • Page 22 P/No.: 3828A21026A...