ENGLISH FRANÇAIS ESPAÑOL 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 thoroughly. TYPE : Multi Type http://www.lghvac.com www.lg.
FLEX MULTI SPLIT INSTALLATION INSTRUCTIONS
Multi Air Conditioner Installation Manual Installation Requirements Installation Parts Provided ...................................................4 Safety Precautions ................................................................5 Installation of Indoor, Outdoor Unit .....................................8 Select the best location ....................................................8 Seaside Applications and Installation ..............................10 Seasonal Wind And Cautions In Winter...............
Installation Parts Provided Installation Parts Provided [Wall mounted / ART COOL Mirror] Type 1 Type 2 Type 3 Type 4 Installation plate Installation plate Installation plate Installation plate Type "B" screw Type "B" screw Type "B" screw Type "C" screw Type "B" screw Type "C" screw Type "A" screw Type "A" screw Type “A” screw Type “A” screw Remote control holder Remote control holder Remote control holder Remote control holder [Ceiling Concealed Duct Type] Name Clamp metal Insulation
Product Introduction WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage to properties only. n The meanings of the symbols used in this manual are as shown below. Be sure not to do. Be sure to follow the instruction. WARNING n Installation Always perform grounding. • Otherwise, it may cause electrical shock. Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.
Safety Precautions Do not install the product at a place that there is concern of falling down. • Otherwise, it may result in personal injury. Use caution when unpacking and installing. • Sharp edges may cause injury. Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion. • There is the risk of death, injury, fire or explosion.
Safety Precautions ENGLISH CAUTION n Installation Install the drain hose to ensure that drain can be securely done. • Otherwise, it may cause water leakage. Always inspect gas leakage after the installation and repair of product. • Otherwise, it may cause the failure of product. Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors. • Otherwise, it may cause dispute with the neighbors. Keep level parallel in installing the product.
Safety Precautions 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. 3. Make sure that condensation drainage can be conveniently routed away. 4. Do not install near a doorway. 5. Ensure the unit is unobstructed, allow proper space on all sides according to the arrows and distance measurements in the figures. 6.
Installation of Indoor, Outdoor Unit 1. If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted. 2. Ensure the unit is unobstructed, allow proper space on all sides according to the arrows and distance measurements in the figures. 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. 5.
Installation of Indoor, Outdoor Unit Seaside Applications and Installation 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 Indoor, Outdoor Unit - Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well. - Get ready for seasonal wind or snow in winter even in other areas. - Install a suction and discharge duct not to let in snow or rain. - Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.
Installation of Indoor, Outdoor Unit Piping length and elevation Multi Piping Type Outdoor Unit Capacity (Btu/h class) 18k Max total length of all pipes (A+B)/(A+B+C)/ (A+B+C+D) 50(164) Unit : m(ft) Max Elevation Max elevation Max.Combination between each between indoor of Indoor unit indoor unit and (Btu/h class) units (h2) outdoor unit (h1) 24k 7.5(25) 15(49) Max length of each pipe (A/B/C/D) Min length of each pipe (A/B/C/D) 25(82) 3(10) 3(10) 15(49) 7.5(25) 33k 3(10) 15(49) 7.
Installation of Indoor, Outdoor Unit Max total length Max length Outdoor Unit of all pipes of Capacity (Main + Branch Main pipe (Btu/h class) pipes) (A+B+C) 54k 145(476) 55(180) Unit : m(ft) Max length Max length of of each Branch Branch pipe pipes 90(295) Min length of each pipe (Main / Branch pipes) 15(49) 3(10) Max Elevation Max ElevaMax CombiBetween each tion nation indoor unit and Between inof indoor outdoor unit door unit (h1) (h2) 30(98) 15(49) 73k Pipe Diameter Unit : mm(inch) Indoor uni
Installation Installation [Wall mounted / ART COOL Mirror] Connecting the piping # Standard / Artcool Mirror Type 1. Prepare the indoor unit's piping and drain hose for installation through the wall. 2. Remove the plastic tubing retainer(see the illustration on the right) and pull the tubing and drain hose away from chassis. 3. Route the indoor tubing and the drain hose to the required piping hole position. 4. Insert the piping, drain hose, and the connecting cable into the piping hole. 5.
Installation ENGLISH # Standard Libero / Artcool Libero Type 1. Pull the screw cap at the bottom of the indoor unit 2. Remove the chassis cover from the unit by loosing screws Chassis cover Indoor unit back side view 3. Pull back the tubing holder. Pipe Port 4. Remove pipe port cover and positioning the tubing Left Right Tubing holder Backwards 5. Indoor unit installation 1) Hook the indoor unit onto the upper portion of the installation plate.
Installation Connecting the piping to the indoor unit and drain hose to drain pipe. 1. Align the center of the pipes and sufficiently tighten the flare nut by hand. Indoor unit tubing Flare nut Pipes 2. Tighten the flare nut with a wrench. Open-end wrench (fixed) Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 Ø12.7 1/2 Ø15.88 5/8 Ø19.05 3/4 N. m 14~18 34~42 49~61 69~82 100~120 Torque kgf.m 1.4~1.8 3.5~4.3 5.0~6.2 7.0~8.4 10.0~12.2 lbf.ft 10~13 25~31 36~45 51~60 73~88 3.
Installation Plastic bands Insulation material Indoor unit pipe Connection pipe Wrap with vinyl tape Vinyl tape (wide) Pipe Vinyl tape(narrow) 3. Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section. Vinyl tape(wide) Drain hose Reroute the pipings and the drain hose across the back of the chassis. Finishing the indoor unit installation # Standard / Artcool Mirror Type 1. Remove the spacer. 2.
Installation Installation of filters 1) Detach two attached tapes from the plasma filter. Plasma Filter How To Fix 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. 2. Measure the wall and mark the centerline.
Installation ENGLISH Wiring Connection 1. Connect the wires to the terminals on the control board individually according to the outdoor unit connection. • Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively. Terminal Block in Indoor 1(L1) 2(L2) 3 4 Connecting cable Connected to Outdoor Unit 2. Attach the Grille onto the cabinet.
Installation [Ceiling Cassette Type] Ceiling dimension and hanging bolt location • The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions. Ceiling Ceiling board Level gauge 585~660(23 1/16~26) (Ceiling Opening) 461(18 5/32) 585~660(23 1/16~26) (Ceiling Opening) 570(22 15/32) Unit Size 517(20 3/8) Unit Size 319(12 9/16) 570(22 15/32) 523(20 19/32) 517(20 3/8) Unit: mm(inch) • Select and mark the position for fixing bolts and piping hole.
Installation Keep the length of the bolt from the bracket to 40mm(1-9/16 inch) Hanging bolt (W3/8 or M10) Nut (W3/8 or M10) Flat washer for M10 (accessory) Ceiling board Spring washer (M10) ① Hanging Bolt - W 3/8 or M10 ② Nut - W 3/8 or M10 Ceiling board Keep the length of 31~34mm(1.22~1.34inch) between the air conditioner bottom surfac e and the ceiling surface Flat washer for M10 (accessory) Nut (W3/8 or M10) • The following parts are local purchasing.
Installation Installation of Wired Remote Controller(Optional) 1. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box. - Install the product so as not to make a gap with the wall side and to prevent shaking after the installation. 2.
Installation - Please connect not to make a gap at the remote controller and setup boardʼs upper and lower, right and left part. - Before assembly with the installation board, arrange the Cable not to interfere with circuit parts. Wall Side Wall Side When separating remote controller from setup board, as the picture below, after inserting into the lower separating hole using screw driver and then, spinning clockwise, remote controller is separated.
Installation Installation of 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. Remove the Corner covers of the panel. Coner cover 3. Fit the panel on the unit by inserting hooks as shown in picture. Hook clip Hook 4. Insert two screws on diagonal corners of panel. Do not tighten the bolts completely.
Installation ENGLISH 5. Fit the corner covers. 6. Open two screws of control panel cover. Screw 7. Connect one display connector and two vane control connectors of front panel to indoor unit PCB. 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.
Installation CAUTION: Install certainly the decorative panel. Cool air leakage causes sweating. ⇨ Water drops fall. Good example Bad example Air conditioner unit Air conditioner unit Air Ceiling board Cool air leakage (no good) Ceiling board Decorative panel Decorative panel Fit the insulator (this part) and be careful for cool air leakage HEAT INSULATION 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance [over 120°C(248°F)]. 2.
Installation • Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow. • During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit. • The outside diameter of the drain connection on the indoor unit is 32mm(1 1/4 inch).
Installation Attention 1. Possible drain-head height is up to 700mm(27 9/16 inch). So, it must be installed below 700mm(27 9/16 inch). 1/50~1/100 MAX 700mm (27 9/16 inch) 2. Keep the drain hose downward up to 1/50~1/100 inclination. Prevent any upward flow or reverse flow in any part. 3. 5mm(3/16 inch) or thicker formed thermal insulator is provided for the drain pipe. Thermal insulator (Local supply) Drain pipe (Local supply) Unit Elbow Drain pump 4. Upward routing is not allowed. Wall 5.
Flaring Work and Connection of Piping ENGLISH 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 following procedure. Copper tube Slanted Uneven Rough 90 1) Cut the pipes and the cable. n Use the accessory piping kit or the pipes purchased locally. n Measure the distance between the indoor and the outdoor unit. n Cut the pipes a little longer than measured distance. n Cut the cable 1.5m(4.
Flaring Work and Connection of Piping Connection of piping - Outdoor Align the center of the piping and sufficiently tighten the flare nut by hand. Connecting pipe order 1) ROOM A~C gas side pipe 2) ROOM A~C liquid side pipe Ø12.7(1/2 inch) Connector 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.
Flaring Work and Connection of Piping ENGLISH • For the units with capacity more than 48 kBtu/h, the installation piping is connectable in four directions.(refer to figure 1) • When connecting in a downward direction, knock out the knockout hole of the base pan. (refer to figure 2) Continuous → Torque wrench (250mm ) Preventing foreign objects from entering (Figure3) • Plug the pipe through-holes with putty or insulation material(procured locally)to stop up all gaps,as shown in the figure 3.
Flaring Work and Connection of Piping Branch [unit:mm] Model Gas Pipe Liquid Pipe Ø19.05 Ø19.05 PMBL5620 Ø9.52 Ø9.52 Ø9.52 Ø19.05 Y branch A To Outdoor Unit B A B To BD Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Horizontal plane Facing upwards Within +/- 10 A Viewed from point A in direction of arrow • Branch pipe should be insulated with the insulator in each kit.
Flaring Work and Connection of Piping • This unit may be installed suspended from the ceiling or mounted on the wall. • This unit may only be installed horizontally , as shown in the diagram below.(Side B is facing up) However, it may be freely installed in any direction forward or back, and to the sides. • Be sure to leave a 600mm square opening for service and inspection as shown in the diagram below, for both ceiling - suspended installation and wall-mounted installation.
Flaring Work and Connection of Piping Installation of The Main Unit NOTICE : • This unit has two different installation types: (1) Ceiling-suspended type and (2) wall-mounted type. • Choose the proper installation pattern according to the location of installation. • The installation location for printed wiring board can be changed. Follow the procedure specified in the "CONNECTING THE WIRING" section to change the location.
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit Connect the cable to the Indoor 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 ground wire should be longer than the common wires. The circuit diagram is not subject to change without notice.
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit Connect the cable to the Distributor unit. • Connect refrigerant pipes and connection wires to the appropriate ports maked with matching alphabets (A, B and C) on this unit. • Follow the instructions on the wiring nameplate to connect the connection wires of indoor/outdoor units to terminal board numbers.(1, 2 and 3) Always fix each ground wire separately with a ground screw.(See the figure below.
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit ENGLISH Connect the cable to the Outdoor unit. 1. Remove the control cover from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as the following. Power supply cable Conduit hole 2. Secure the cable onto the control board with the holder (clamper). Connecting cable (to the indoor unit) 3. Re-attach the cover control to the original position using the screws.
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit NOTICE : 1. Use connection cable NRTL(UL, ETL, CAS…) listed and stranded copper(4) THHN conductors, sunlight (UV) resistant ROHS compliant PVC jacket 600V direct burial listed, approved for wet conditions. Temperature rated for –20℃(-4℉) to 90℃(194℉). And this cable should be enclosed in conduit.
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit (1) Remove the side panel and knockouts of conduit panel. (for low voltage line) (2) Pull out connection cable through conduit. (3) After conduit to the panel, fix nut to the opposite side of panel. (4) Pass the connection cabel through the hole. (5) Properly connect the cable on the terminal block.
Checking the Drainage, Insulating the Pipe and Special Piping Applications Checking the Drainage, Insulating the Pipe and Special Piping Applications Checking the drainage 1. Remove the Air Filter. 2. Check the drainage. • Spray one or two glasses of water upon the evaporator. • Ensure that water flows drain hose of indoor unit without any leakage. h The figure can be changed according to model.
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. Water may lead to corrosion of parts in the refrigeration system.
Air Purging and Evacuation Evacuation 1. Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump. The following table shows the time required for evacuation.
Charging n If installed total piping length is more than standard total length, additional refrigerant charging is necessary. Below standard total piping length, additional refrigerant charging is not required.
Charging Distributor type Models Additional charge (oz) = (( Total Main piping Length - Main Standard Length ) x 0.55 + (A Room Branch Length – Standard Length ) x 0.22 + (B Room Branch Length – Standard Length ) x 0.22 + (C Room Branch Length – Standard Length ) x 0.22 +.. ) - CF(Correction Factor) x 3.53 h CF = Max. number of connectable indoor unit – Total number of connected indoor unit • Total main pipe(A+B+C)=98ft • Each branch pipe a=33ft b=26ft c=16.
Installation PI485 ENGLISH Installation PI485 Fix the PI485 PCB as shown in Fig. Detailed installation method refer to PI485 Installation Manual. 18k Btu/h, 24k Btu/h 36kBtu/h where This label is should be applied in the location installed. LGAP(Sub PCB for Central Controller is the LGAP. Please connect the wire after installing 54kBtu/h Screw Hole Gateway. of PI485 for installation the space This is PI485 (Accessory) after installing the wire connect Please Gateway.
Test Running Test Running - Check that all tubing and wiring have been properly connected. - 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 vinto position. NOTICE Bolt : • Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries.
Function ENGLISH Function Dip S/W Setting If you set the Dip Switch when power is on, the change in setting is not applicable. The changing setting is enabled only when Power is reset.
Function 18/24(1Ø) kBtu/h 36(1Ø) kBtu/h SW01N DIP-SW 54(1Ø) kBtu/h DIP SW2 Forced Cooling Operation Adding the refrigerant in winter. Setting Procedure 1. Set the Dip Switch as follow after shutting the power source down. 2. Reset the power. 3. Check that the Red LED of PCB is on during work. (The indoor unit is operated by force.) 4 Add the specific amount of refrigerant. CAUTION • When the green LED of PCB is on, compressor is going to be off because of low pressure.
Function ENGLISH Wiring Error Check You can check whether or not the wiring is correct. Setting Procedure 1. Set the Dip Switch as follow after shutting the power source down. 2. Reset the power. 3. Check that the Re and Green LED of PCB are on during work. (The indoor unit is operated by force.) 4. If the wiring is correct, the Green LED will light up. If the wiring is wrong, display as below (Display only wrong connection.
Function Saving Power Consumption Current level. Phase Model Step1(A) Step2(A) 1Ø 36k 13 11 18/24k 9 8 54k 26 22 Saving Power Consumption with Mode Lock.
Function ENGLISH Mode Lock Setting Procedure 1. Set the Dip Switch as follow after shutting the power source down. Only Cooling Mode Only Heating Mode 2. Reset the power. Mode Lock with Night Quiet Mode Mode Lock (Cooling) + Night Quiet Mode (step 1) Mode Lock (Cooling) + Night Quiet Mode (step 2) Saving Power Consumption with Mode Lock.
Function PCB Display(18/24k Model Only) It is useful to check the cycle data without LGMV. Operating Method Whenever you push the Tact Switch, the cycle information will be shown as below. h After 1page is displayed, subsequently 2page is displayed. Tact S/W Item 18/24k Display Example 1page 2page 1 time Low Pressure 890kpa ʻLPʼ ʼ 89ʼ 2 time Hi Pressure 2900kpa ʻHPʼ ʻ290ʼ 3 time Discharge Temp. 85°C ʻDSʼ ʼ 85ʼ 4 time Cond Out Temp. -10°C ʻCSʼ ʻ-10ʼ 5 time Suction Temp.
Combination indoor units ENGLISH Combination indoor units The indoor units connectable to the outdoor unit are shown below Category Chassis 2.1(7) Wall mounted SB 2.6 (9) Model names Capacity, kW(kBtu/h Class) 3.5 (12) 4.2(15) 5.3 (18) SB 7.03 (24) 18k 24k 36k 54k Connectable Combination 10.
Multi Air Conditioner
US 1. Please call the installing contractor of your product, as warranty service will be provided by them. 2. If you have service issues that have not been addressed by the contractor, please call 1-888-865-3026.
