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Table of Contents
- 1 Table of Contents
- 2 Installation Parts Provided
- 3 Safety Precautions
- 4 Installation of Indoor, Outdoor Unit
- 5 Flaring Work and Connection of Piping
- 6 Connecting the Cable between Indoor Unit and Outdoor Unit
- 7 Checking the Drainage, Forming the Pipings and Long Pipe Setting
- 8 Air Purging and Evacuation
- 9 Panel Front Assembly
- 10 Installation PI485
- 11 Test Running
- 12 Combination Indoor Units
- 13 Max Combination Capacity
- 14 Installation Guide at the Seaside
- 15 Seasonal Wind and Cautions in Winter
- Download this manual
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
P/NO : 3828A20567H
www.lg.com
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Table of Contents
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Summary of Contents for LG A3UW186FA3
- 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 www.lg.com P/NO : 3828A20567H...
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Page 2: Table Of Contents
Multi Type Air Conditioner Installation Manual CONTENTS Installation Requirements Required Tools Installation Parts Provided .........3 Safety Precautions..........4~5 ❏ Level gauge ❏ Screw driver Installation of indoor, outdoor unit .....6~11 ❏ Electric drill ❏ Hole core drill (ø65mm) ❏ Horizontal meter ❏... -
Page 3: Installation Parts Provided
Installation Parts Provided Installation Parts Provided Standard Type Installation plate Type "B" screws Type "A" screw (6 EA) Type "A" screw (8 EA) Type "A" screw (7 EA) Type "A" screw and plastic anchors Holder Remote Control more than 5. Copper pipe (Liquid side) 60cm 6. -
Page 4: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. I 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 touch(operate) product with wet If strange sound, smell or smoke come from hands. product, turn the breaker off. • Otherwise, it may cause fire or electric shock. • Otherwise, it may cause electric shock or fire. Do not put the heater, etc.
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Page 6: 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 More than 10cm More than 20cm 1. Do not have any heat or steam near the unit. 2. - Page 7 Installation of Indoor, Outdoor Unit Fixing Installation Plate The wall you select should be strong and solid Installation Plate 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.
- Page 8 Installation of Indoor, Outdoor Unit Piping length and elevation Multi Piping Type (Unit: m) Max Elevation In - In Elevation Capacity(kBtu/h) Total Length Max Length(A/B) (h1) (h2) 24/27 Distributor Type (Unit: m) Capacity Max Main Pipe Total Branch Max Branch Max Elevation In - In Elevation Phase...
- Page 9 The calculation of the additional charge should be taken in account for the length of extra pipe. Multiple Piping Models Standard Max piping for Max total Piping Additional Model length(m) one room(m) Length(m) Charge(g/m) A3UW186FA3[FM19AH] A3UW216FA3/4[FM21AH] A4UW246FA3/4[FM25AH] A4UW276FA3[FM27AH] A5UW306FA3[FM30AH] A5UW406FA3[FM38AH] Distributor type Models Main Piping length Branch piping length Phase Model...
- Page 10 Installation of Indoor, Outdoor Unit Preparing work for Installation (ART COOL Type Only) Open panel front 1. First, push the front panel backward and lift it up to remove the two screws. 2. The moment of lifting the both lower parts of panel front, you can hear sound this panel came out, In this time panel front is separated 3.
- Page 11 Installation of Indoor, Outdoor Unit Sticking the installation guide map and fixing Indoor unit (ART COOL Type Only) Adjust level even by level guage and fix to installation Put an Installation Guide Map on the desired surface. for reference on the wall. INSTALLATION GUIDE MAP Horizontality T I O...
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Page 12: 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 13 Flaring Work and Connection of Piping installation of remote control box Install the remote control box and cord correctly. POINT OF REMOTE CONTROLLER INSTALLATION • Although the room temperature sensor is in the indoor unit, the remote control box should be installed in such places away from direct sunlight and high humidity.
- Page 14 Flaring Work and Connection of Piping Wired remote controller installation • Since the room temperature sensor is in the remote controller, the remote controller box should be installed in a place away from direct sunlight, high humidity and direct supply of cold air to maintain proper space temperature.
- Page 15 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 16 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 17 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 18 Flaring Work and Connection of Piping • For the units with capacity more than 48 kBtu/h, the installation piping is connectable in four directions.(refer to figure 1) Continuous • When connecting in a downward direction, knock out the knockout hole of the base pan. (refer to figure 2) Preventing foreign objects from entering (Figure3)
- Page 19 Flaring Work and Connection of Piping Branch [unit:mm] Model Gas Pipe Liquid Pipe Ø19.05 Ø9.52 Ø9.52 Ø19.05 PMBL5620 Ø9.52 Ø19.05 PMBL1203F0 Ø9.52 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...
- Page 20 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 21 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.
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Page 22: 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. 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 23 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 1. Remove the cover control from the unit by Outdoor unit loosening the screw. loosening the screw. Terminal block Connect the wires to the terminals on the Connect the wires to the terminals on the...
- Page 24 Connecting the Cable between Indoor Unit and Outdoor Unit Connection of Wiring • 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.) •...
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Page 25: 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. Connecting area drain hose 2. - Page 26 Checking the Drainage, Forming the Pipings and Long Pipe Setting Forming the piping Form the piping by wrapping the connecting portion of the indoor Seal a small unit with insulation material and Taping opening around the pipings with secure it with two kinds of vinyl Drain hose gum type sealer.
- Page 27 Checking the Drainage, Forming the Pipings and Long Pipe Setting Long Pipe Setting 1. Open the top cover of outdoor unit. A3UW186FA3[FM19AH] 2. Select one of the two selectable modes as A3UW216FA3/4[FM21AH] follows. A4UW246FA3/4[FM25AH] 3. Set the Zone as shown in Fig.
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Page 28: 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 29 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. The operation time for evacuation varies with tubing length and capacity of the pump.
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Page 30: Panel Front Assembly
Panel Front Assembly Panel Front Assembly (ART COOL type Only) 1. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of cover side left. 2. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front Panel Front... -
Page 31: Installation Pi485
Installation PI485 Installation PI485 • Fix the PI485 PCB as shown in Fig. Detailed installation method refer to PI485 Installation Manual. A3UW186FA3[FM19AH] A3UW216FA3/4[FM21AH] A4UW246FA3/4[FM25AH] A4UW276FA3[FM27AH] A5UW306FA3[FM30AH] Installation Manual 31... - Page 32 Installation PI485 A5UW406FA3[FM38AH] A7UW406FA2/3[FM40AH] A8UW486FA3[FM48AH] A9UW566FA3[FM56AH] A7UW428FA3[FM41AH] A8UW488FA3[FM49AH] A9UW548FA3[FM57AH] 32 Multi Air Conditioner...
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Page 33: 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 34: Combination Indoor Units
Combination indoor units Combination indoor units The indoor units connectable to the outdoor unit are shown below. Model Name Chassis Type Capacity, Btu/h Name 5000 7000 9000 12000 18000 24000 30000 36000 Standard Type Artcool Deluxe Type Artcool Type Ceilling Mounted Cassete Type 1Way Ceilling Mounted Cassete Type 4Way... -
Page 35: Max Combination Capacity
Max Combination Capacity Max Combination Capacity Multi Piping Type Capacity Combination Indoor Capacity Max Combination Capacity Max Room No. (kBtu/h) (kBtu/h) (kBtu/h) 5, 7, 9, 12 5, 7, 9, 12, 18 5, 7, 9, 12, 18, 24 5, 7, 9, 12, 18, 24 5, 7, 9, 12, 18, 24 5, 7, 9, 12, 18, 24 Distributor Type... -
Page 36: Installation Guide At The Seaside
3) Select a well-drained place. 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water Seasonal wind and cautions in winter •...