ENGLISH ITALIANO ESPAÑOL FRANÇAIS INSTALLATION MANUAL AIR CONDITIONER www.lg.com P/NO : 3828A22235A DEUTSCH • 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.
Multi Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Requirements Required Tools The following should be always observed for safety ....................................3~5 Installation of indoor, outdoor unit .....................6~10 ❏ Level gauge ❏ Screw driver ❏ Electric drill ❏ Hole core drill (ø50mm) ❏ Horizontal meter Flaring work and connection of piping.............11~14 ❏ Flaring tool set ❏ Specified torque wrenches 1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.
Installation Parts Provided Installation Parts Provided Installation plate Type "A" screws and plastic anchors Type "B" screws Holder Remote Control more than 20cm 5. Copper pipe (Liquid side) 6. Copper pipe (Gas side) more than 20cm 7.
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. CAUTION This symbol indicates the possibility of injury or damage. ■ Meanings of symbols used in this manual are as shown below.
Safety Precautions Always intstall an circuit breaker and main breaker. If strange sound, smell or smoke come from product, turn the breaker off or disconnect the power supply cable. • Otherwise, it may cause electric shock or fire. Cover the electric part. • Otherwise, it may cause fire or electric shock. Do not put the heater, etc. near the power cable. • Otherwise, it may cause fire and electric shock. Do not turn the breaker on/off or connect/disconnect the power supply plug during operation.
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. 2. Select a place where there are no obstacles in front of the unit. More than 50cm More than 10cm 3. Make sure that condensation drainage can be conveniently routed away. 4. Do not install near a doorway. 5. Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.
Installation of Indoor, Outdoor Unit Piping length and elevation (m) Capacity(Btu/h) Total Length Max Length(A/B) Max Elevation (h1) In - In Elevation (h2) 14k/16k 30 20 15 7.5 18k 40 25 15 7.5 24k 50 25 15 7.5 30k 70 25 15 7.
Installation of Indoor, Outdoor Unit How to fix installation plate The wall you select should be strong and solid enough to prevent vibration 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts. • Mount the installation plate horizontally by aligning the centerline using a level. Installation Plate Chassis Hook Type “A” 2. Measure the wall and mark the centerline.
Installation of Indoor, Outdoor Unit Flaring Work Cut the pipes and the cable. 1. Use the piping kit accessory or the pipes purchased locally. 2. Measure the distance between the indoor and the outdoor unit. Copper pipe Slanted Uneven Rough 90° 3. Cut the pipes a little longer than measured distance. 4. Cut the cable 1.5m longer than the pipe length. Burrs removal Pipe 1. Completely remove all burrs from the cut cross section of pipe/tube. Reamer 2.
Installation of Indoor, Outdoor Unit Check 1. Compare the flared work with the figure by. Smooth all round Inside is shiny without scratches 2. If a flared section is defective, cut it off and do flaring work again. = Improper flaring = Even length all round Inclined Surface Cracked Uneven damaged thickness Connecting the Piping Indoor 1. Prepare the indoor unit's piping and drain hose for installation through the wall. 2.
Installation of Indoor, Outdoor Unit Connecting cable Drain hose Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound). Connecting the piping to the indoor unit and drain hose to drain pipe. Indoor unit tubing Flare nut 1. Align the center of the pipes and sufficiently tighten the flare nut by hand. Open-end wrench (fixed) 2. Tighten the flare nut with a wrench. Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 Ø12.
Installation of Indoor, Outdoor Unit For left rear piping 1. Route the indoor tubing and the drain hose to the required piping hole position. 1 2 Connecting cable 2. Insert the piping, drain hose, and the connecting cable into the piping hole. 3. Insert the connecting cable into the indoor unit. • Don't connect the cable to the indoor unit. • Make a small loop with the cable for easy connection later. Drain pipe 4. Tape the drain hose and the connecting cables. 5.
Installation of Indoor, Outdoor Unit Wrap the insulation material around the connecting portion. 1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there may be no gap. Indoor unit piping Connection pipe Vinyl tape (wide) Wrap with vinyl tape Pipe Vinyl tape(narrow) Connecting cable 3.
Installation of Indoor, Outdoor Unit Installation Information. For left piping. Follow the instruction below. Good case • Press on the upper side of clamp and unfold the tubing to downward slowly. Bad case • Following bending type from right to left may cause damage to the tubing. Connection of piping - Outdoor Align the center of the piping and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks.
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 by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.) The earth wire should be longer than the common wires. The circuit diagram is not subject to change without notice.
Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Outdoor unit. 1. Remove the cover control from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as the following. Outdoor unit Terminal block Over 5mm 2. Secure the cable onto the control board with the holder (clamper). Holder for power supply cord 3. Refix the cover control to the original position with the screw. 4.
Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting ENGLISH 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. Drain piping 1. The drain hose should point downward for easy drain flow. Downward slope 2. Do not make drain piping.
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 secure it with two kinds of vinyl tape. Seal a small opening around the pipings with gum type sealer. Taping Drain hose • If you want to connect an additional drain hose, the end of the drain outlet should be routed above the ground. Secure the drain hose appropriately.
Air Purging and Evacuation Air Purging and Evacuation Checking method Preparation • Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Remove the service valve caps from both the gas and the liquid side on the outdoor unit. Check that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage. Leakage test 1.
Air Purging and Evacuation Soap water method 1. Remove the caps from the 2-way and 3-way valves. 2. Remove the service-port cap from the 3-way valve. 3. To open the 2-way valve turn the valve stem counterclockwise approximately 90°, wait for about 2~3 sec, and close it. 4. Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping. 5.
Use of Front Panel Use of Front Panel ENGLISH Connecting the Cables How to use the front panel 1. Front panel opening Hold the two ends of the front panel at the bottom and move it upward. Front panel 2. Front panel closing Move the link upward and close the front panel. 3. Front panel removing Raise the link up to hook hanger and remove front panel forward.
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. Reattach the cover by pushing it back into position. Bolt NOTICE : • Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries.
Combination indoor units Combination indoor units ENGLISH The indoor units connectable to the outdoor unit are shown below.
Combination table of Models Combination table of Models ❈ This table shows available combination. Above standard combination, suitable performance may not be obtained depending on operating condition.
Combination table of Models 30k (4 rooms) Combination 1 UNIT 2 UNIT 3 UNIT 4 UNIT 7 9 12 18 7 7 9 7 9 12 7 9 12 18 7 7 7 7 9 7 9 7 7 9 7 12 9 7 9 7 7 7 7 7 7 9 7 7 9 7 Unit-B 7 9 9 12 12 12 18 18 18 18 7 7 9 7 9 9 9 12 7 12 9 12 9 12 12 7 7 7 7 9 7 9 9 7 9 7 Unit-C 7 9 9 12 9 12 12 12 18 12 18 12 18 18 18 7 7 9 7 9 9 9 9 12 9 7 Unit-D Total 7 9 9 12 9 12 9 12 12 12 18 7 9 12 18 14 16 18 19 21 24 25 27 30 36 21 23 25 26 27 28 30 31 32 33 34 36 36 37 39 28 30 32 33 34 35 36 37 38 39 39 Installa
Combination table of Models 40k (6 rooms) Combination Unit-A 1 UNIT 2 UNIT 3 UNIT 4 UNIT 7 9 12 18 24 7 7 9 7 9 12 7 9 12 7 9 18 12 18 24 7 7 7 7 9 7 9 7 7 9 7 12 9 7 7 9 7 12 9 7 7 9 9 12 12 7 9 7 7 7 7 7 7 9 26 Multi Type Air Conditioner Unit-B 7 9 9 12 12 12 18 18 18 24 24 18 24 24 24 7 7 9 7 9 9 9 12 7 12 9 12 9 12 7 12 9 12 9 18 12 18 12 18 12 18 18 7 7 7 7 9 7 9 Unit-C 7 9 9 12 9 12 12 12 18 12 18 12 18 18 24 18 24 18 24 18 24 18 24 18 24 24 24 7 7 9 7 9 9 9 Unit-D 7 9 9 12 9 12 9 Unit-E
Combination table of Models Combination 5 UNIT 6 UNIT Unit-B Unit-C Unit-D 7 7 9 7 7 7 9 7 7 7 9 9 7 7 7 12 9 7 7 7 9 9 7 7 7 7 7 7 7 7 7 9 7 9 7 7 7 7 7 7 7 9 7 7 7 7 7 7 7 7 7 7 7 7 7 9 7 9 7 9 7 9 12 9 7 12 9 7 9 7 12 9 12 9 7 12 9 9 7 7 7 7 7 7 9 7 9 9 9 7 7 7 7 9 7 7 9 7 9 9 7 7 7 7 7 7 7 7 7 9 9 12 9 7 12 9 12 12 9 12 12 9 7 12 9 12 12 12 9 12 12 9 12 7 7 7 7 9 7 9 9 9 9 9 7 7 9 7 9 12 9 9 7 12 9 7 7 7 7 7 7 7 9 7 9 12 12 12 18 12 18 12 12 18 18 12 18 24 18 24 12 18 18 24 24 18 24 24 7 7 9 7
Memo 28 Multi Type Air Conditioner
