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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
P/NO : MFL68280101
http://www.lghvac.com
www.lg.com
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Table of Contents
Related Manuals for LG LMN097HVT
Summary of Contents for LG LMN097HVT
- Page 1 • 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.com P/NO : MFL68280101...
- Page 2 FLEX MULTI SPLIT INSTALLATION INSTRUCTIONS...
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Page 3: Table Of Contents
Multi Air Conditioner Installation Manual TABLE OF CONTENTS Required Tools Installation Requirements Installation Parts Provided ...........4 Safety Precautions ..............5 Installation of Indoor, Outdoor Unit ........8 Select the best location ............8 o Level gauge Seaside Applications and Installation ......10 o Screw driver Seasonal Wind And Cautions In Winter......11 o Electric drill Piping length and elevation ..........12... -
Page 4: Installation Parts Provided
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"... -
Page 5: Safety Precautions
Product Introduction Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. n Be sure to read before installing the air conditioner. n Be sure to observe the cautions specified here as they include important items related to safety. n Incorrect operation due to ignoring instruction will cause harm or damage. - Page 6 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. 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.
- Page 7 Safety Precautions CAUTION n Installation Install the drain hose to ensure that drain Install the product so that the noise or hot can be securely done. wind from the outdoor unit may not cause any damage to the neighbors. • Otherwise, it may cause water leakage. •...
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Page 8: Installation Of Indoor, Outdoor Unit
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. [Wall mounted / ART COOL Mirror] 2. Select a place where there are no obstacles in More than front of the unit. - Page 9 Installation of Indoor, Outdoor Unit Outdoor unit 1. If an awning is built over the unit to prevent di- rect sunlight or rain exposure, make sure that more than heat radiation from the condenser is not re- 600 (23 21/32) stricted.
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Page 10: Seaside Applications And Installation
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. -
Page 11: Seasonal Wind And Cautions In Winter
Installation of Indoor, Outdoor Unit Seasonal Wind And Cautions In Winter - 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. -
Page 12: Piping Length And Elevation
Installation of Indoor, Outdoor Unit 12 Multi Air Conditioner... - Page 13 Installation of Indoor, Outdoor Unit Distributor Piping Type Unit : m(ft) Min length of Max Elevation Max Eleva- Max total length Max length Max length Max Combi- Outdoor Unit Max length each pipe Between each tion of all pipes nation Capacity of each (Main /...
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Page 14: Installation
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 il- lustration on the right) and pull the tubing and drain hose away from chassis. - Page 15 Installation # 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.
- Page 16 Installation Connecting the piping to the indoor unit and drain hose to drain pipe. 1. Align the center of the pipes and suffi- Indoor unit tubing Flare nut Pipes ciently tighten the flare nut by hand. 2. Tighten the flare nut with a wrench. Open-end wrench (fixed) Outside diameter Torque...
- Page 17 Installation Wrap the insulation material around the con- Plastic bands Insulation material necting portion. 1. Overlap the connection pipe insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap. Indoor unit pipe Connection pipe 2.
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Page 18: How To Fix
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"... -
Page 19: Wiring Connection
Installation Wiring Connection 1. Connect the wires to the terminals on the con- trol 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. -
Page 20: Ceiling Dimension And Hanging Bolt Location
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 • Select and mark the position for fixing bolts and piping 585~660(23 1/16~26) (Ceiling Opening) hole. -
Page 21: How To Fix
Installation How to Fix Ceiling Keep the length of the bolt Hanging bolt from the bracket to 40mm(1-9/16 inch) (W3/8 or M10) Flat washer for M10 Air Conditioner body (W3/8 or M10) (accessory) Ceiling board Ceiling board Spring washer (M10) Keep the length of 31~34mm(1.22~1.34inch) between the air conditioner bottom surfac e and the ceiling surface... -
Page 22: Installation Of Wired Remote Controller(Optional)
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. - Page 23 Installation 3. Please fix remote controller upper part into <Connecting order> the setup board attached to the surface of the wall, as the picture below, and then, connect with setup board by pressing lower part. Wall Wall - Please connect not to make a gap at the remote controller Side Side and setup boardʼs upper and lower, right and left part.
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Page 24: Installation Of Decorative Panel
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. - Page 25 Installation 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.
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Page 26: Drain Piping
Installation 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 panel Fit the insulator (this part) and be careful for cool air leakage HEAT INSULATION 1. - Page 27 Installation [Ceiling Concealed Duct/Ceiling Cassette Type] • Drain piping must have down-slope (1/50 to 1/100): be Upward sure not to provide up-and-down slope to prevent rever- Pipe clamp routing sal flow. not allowed • During drain piping connection, be careful not to exert Indoor unit extra force on the drain port on the indoor unit.
- Page 28 Installation Attention 1. Possible drain-head height is up to 700mm(27 9/16 inch). So, it must be in- stalled below 700mm(27 9/16 inch). 1/50~1/100 MAX 700mm 2. Keep the drain hose downward up to (27 9/16 inch) 1/50~1/100 inclination. Prevent any upward flow or reverse flow in any part.
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Page 29: 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 fol- Copper Slanted Uneven Rough lowing procedure. tube 1) Cut the pipes and the cable. n Use the accessory piping kit or the pipes purchased locally. -
Page 30: Connection Of Piping - Outdoor
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... - Page 31 Flaring Work and Connection of Piping • For the units with capacity more than 48 kBtu/h, the installation piping is connectable in four Continuous directions.(refer to figure 1) • When connecting in a downward direction, knock out the knockout hole of the base pan. Torque wrench (refer to figure 2)
- Page 32 Flaring Work and Connection of Piping Branch [unit:mm] Model Gas Pipe Liquid Pipe Ø19.05 Ø9.52 Ø19.05 Ø9.52 PMBL5620 Ø9.52 Ø19.05 Y branch To Outdoor Unit To BD Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Horizontal Facing upwards...
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Page 33: Installation
Flaring Work and Connection of Piping Installation • 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. -
Page 34: Installation Of The Main Unit
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. -
Page 35: Connecting The Cable Between Indoor Unit, Distributor Unit And Outdoor Unit
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit 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. -
Page 36: Connect The Cable To The Distributor Unit
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. •... -
Page 37: Connect The Cable To The Outdoor Unit
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit Connect the cable to the Outdoor unit. 1. Remove the control cover from the unit by loos- ening the screw. Connect the wires to the terminals on the control Power Power Power... - Page 38 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.
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Page 39: Connection Method Of The Connecting Cable(Example)
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit Connection method of the connecting cable(Example) (1) Remove the side panel and knockouts of conduit panel. (for low voltage line) (2) Pull out connection cable through conduit. Conduit (filed supply) (3) After conduit to the panel, fix nut to the opposite Lock nut (field supply) -
Page 40: Checking The Drainage, Insulating The Pipe And Special Piping Applications
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. -
Page 41: Air Purging And Evacuation
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 42: Evacuation
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. Indoor unit Confirm the "Lo" knob of the manifold valve is open. Then, run the vacuum pump. Manifold valve The operation time for evacuation varies with Pressure... -
Page 43: Charging
Charging 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. Multiple Piping Models Unit:m(ft) Standard Total Piping Max total length of all Additional Refrigerant Outdoor Unit Ca- Max length of each... - Page 44 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 –...
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Page 45: Installation Pi485
Installation PI485 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 This label is should be applied in the location This label is should be applied in the location where where LGAP(Sub PCB for Central Controller is... -
Page 46: Test Running
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. -
Page 47: Function
Function Function Dip S/W Setting If you set the Dip Switch when power is on, the change in setting is not applicable. The changing set- ting is enabled only when Power is reset. Dip Switch Function 1 2 3 4 Normal Operation (No Function) Forced Cooling Operation Wiring Error Check... -
Page 48: Forced Cooling Operation
Function 18/24(1Ø) kBtu/h 36(1Ø) kBtu/h SW01N DIP-SW 54(1Ø) kBtu/h 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. -
Page 49: Wiring Error Check
Function 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 oper- ated by force.) 4. -
Page 50: Night Quiet Mode
Function Saving Power Consumption Current level. Phase 1Ø Model 18/24k Step1(A) Step2(A) Saving Power Consumption with Mode Lock. Saving Power Saving Power Consumption (step 1) Consumption (step 1) + Mode Lock (Cooling) + Mode Lock (Heating) Saving Power Saving Power Consumption (step 2) Consumption (step 2) + Mode Lock (Cooling) -
Page 51: Mode Lock
Function 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) Mode Lock (Cooling) + Night Quiet Mode + Night Quiet Mode (step 1) -
Page 52: Pcb Display(18/24K Model Only)
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 Display Item... -
Page 53: Combination Indoor Units
Capacity, kW(kBtu/h Class) 2.1(7) 2.6 (9) 3.5 (12) 4.2(15) 5.3 (18) 7.03 (24) 10.6 (36) Connectable Combination Wall mounted AMNW07GDBL1 AMNW09GDBL1 AMNW12GDBL1 AMNW15GDBL1 [LMN077HVT] [LMN097HVT] [LMN127HVT] [LMN157HVT] AMNW18GDCL1 AMNW24GDCL1 18K(O) [LMN187HVT] [LMN247HVT] AMNW09GDBR1 AMNW12GDBR1 ART COOL Mirror [LMAN097HVT] [LMAN127HVT] AMNW18GDCR1 [LMAN187HVT]... - Page 54 54 Multi Air Conditioner...
- Page 55 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. CANADA Service call Number # : (888) LG Canada, (888) 542-2623...