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website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html LG Floor Standing Type 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 after reading it thoroughly.
Floor Standing Type Air Conditioner Installation Manual TABLE OF CONTENTS OUT-LINE OF INSTALLATION Safety Precautions..........................................................................................3 Installation of Indoor, Outdoor Unit ..............................................................6 1) Selection of the best location.................................................................................................................................6 2) Indoor Unit Installation .........
Safety Precautions Safety Precautions WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage. ■ Meanings of symbols used in this manual are as shown below. Be sure not to do. Be sure to follow the instruction. WARNING ■ Installation Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.
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. For installation, always contact the dealer or an Authorized Service Center. Do not install the product on a defective installation stand. • There is risk of fire, electric shock, explosion, or injury.
Safety Precautions CAUTION Always check for gas (refrigerant) leakage after installation or repair of product. Install the drain hose to ensure that water is drained away properly. • Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage. Keep level even when installing the product. Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. • To avoid vibration or water leakage.
Installation of Unit Installation of Unit Selection of the best location 1. Indoor unit • There should not be any heat source or steam near the unit. • There should not be any obstacles to prevent the air circulation. • A place where air circulation in the room will be good. • A place where drainage can be easily obtained. • A place where noise prevention is taken into consideration. • Do not install the unit near the door way.
Installation of Unit 3. Piping length and the elevation GAS SIDE LIQUID SIDE 20k 5/8" 1/4" 25 15 28k/30k/40k 5/8" 3/8" 30 20 44k/50k 3/4" 3/8" 40 25 80k 1" 5/8" 50 30 PIPE SIZE Indoor unit A B Outdoor unit CAUTION: • Capacity is based on standard length and maximum allowance length is on the basis of reliability. • Oil trap should be installed every 5~7 meters. Installation Manual 7 ENGLISH Max. Elevation B (m) Max.
Installation of Unit The Indoor Unit Installation Wall Core Drill 200mm 90mm 70mm 70mm 1. The mounting floor should be strong and solid enough to prevent it from vibration. 2. Drill the piping hole with 70mm diameter holecore drill at either the right or the left of indoor unit. The hole should be sightly slant to the outdoor side. INSIDE Plastic tube (Bushing) OUTSIDE Wall Tilt 3. Insert the plastic tube through the hole. 4. Cut the extruded outside part of the plastic tube, if necessary.
Installation of Unit Installation guide at the seaside 1. Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. 2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance. 3.
Installation of Unit Installation Method No. Installation works Descriptions 1 Preparation of tools and installation parts Preparation of installation 2 Flaring the pipes To insert the flare nuts, mounted on the connection parts of both indoor and outdoor unit, onto the copper pipes. 3 Pipe bending To reduce the flow resistance of refrigerant.
Installation of Unit Preparation of installation parts and tools Installation Parts, Tools Use 1 Flaring tool (Ø 6.35 - Ø 19.05) Flaring the pipes 2 Remear Remove burrs from cut edges of pipes.
Installation of Unit Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Copper tube Slanted Uneven Rough 90° 1. Cut the pipes and the cable. • Use the accessory piping kit or the pipes purchased locally. • Measure the distance between the indoor and the outdoor unit. • Cut the pipes a little longer than measured distance. • Cut the cable 1.5m longer than the pipe length. Pipe Reamer Point down 2.
Installation of Unit Connection of piping 1. Move the indoor tubing and drain hose to the hole ENGLISH • Remove tubing holder and pull the tubing out of the chassis. 2. Replace the tubing holder into original position 3. Route the tubing and the drain hose staight backwards. 4. Insert the connecting cable into the indoor unit through the hole. • Do not connect the cable to the indoor unit • Make a small loop with the cable for easy connection later. 5. Tape the tubing and the connecting cable. 6.
Installation of Unit Connecting the Cable to Indoor Unit • The inside and outside connecting cable can be connected after opening the side inlet grille. 1. Open the side-inlet grille manually (Fig. 1) 2. Open the panel (A) with driver ( ) (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.
Installation of Unit Connecting pipings to the outdoor unit . ENGLISH 1. Align the center of the pipings and sufficiently tighten the flare nut with fingers. 2. Finally tighten the flare nut with torque wrench until the wrench clicks. • When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench. PIPE SIZE 1/4" 3/8" 1/2" 5/8" 3/4" Gas side piping Outdoor unit TORQUE 1.8~2.5 kgf·m 3.4~4.2 kgf·m 5.5~6.6 kgf·m 6.3~8.2 kgf·m 9.9~12.
Installation of Unit Power Supply and Wiring The unit is completely wired internally at the factory according to general rule of electrical technology, but local rules, if they are required, should be complied with. 1. Power supply Power source must fulfill the following conditions: • The working voltage should be higher than 90% and lower than 110% of the rated voltage marked on the name plate.
Installation of Unit Vacuum Drying of the Connecting Pipes and the Indoor Unit Indoor unit Liquid side Closed Outdoor unit 2-way valve/ 3-way valve Gas side 3-way valve Closed Vaccum pump OPEN CLOSE Installation Manual 17 ENGLISH The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. 1. Confirm that both the liquid side valve and the gas side valve are set to the closed position. 2.
Installation of Unit Form the Piping 1. Wrap the connecting portion of indoor unit with the insulation material and secure it with two Plastic Bands. (for the right piping) • If you connect an additional drain hose, the end of the drain-outlet should be kept distance from the ground. (Do not dip it into water, and fix it on the wall to avoid swinging in the wind.) Gas side piping Main cable In case of the outdoor unit is installed below position of the indoor unit. 2.
Final Check and Test Run Final Check and Test Run Is the unit securely mounted? Is the installation location adequate? Is the water piping work adequately and without leakage? Are trapped drain lines installed at condensate drain connections? Has the refrigeration cooling cycle been kept sealed? Is the electrical wiring adequate and are the screws tightened on terminals? After the above final checkings, prepare the running test as follows: Connect compound gauges to the check joints at discharge and suctio
