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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
P/NO : 3828A20567R
www.lg.com
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Table of Contents
Related Manuals for LG LMNC182BHA0
Summary of Contents for LG LMNC182BHA0
- 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 : 3828A20567R...
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Page 2: Table Of Contents
Air Conditioner Installation Manual TABLE OF CONTENTS Required Tools Installation Requirements Installation Parts Provided.........3 o Level gauge o Screw driver Safety Precautions ............4 o Electric drill o Hole core drill (ø50mm) Installation of indoor, outdoor unit .....7~28 o Horizontal meter Flaring Work and Connection of Piping ...29~31 o Flaring tool set o Specified torque wrenches... -
Page 3: Installation Parts Provided
Installation Parts Provided Installation Parts Provided Wall Mounted Type Installation plate Holder Remote Control Type "A" screw (8 EA) Type "B" screws (2EA) Outdoor Unit Air Intake (side, rear) more than more than more than Control cover Connecting wire Connection pipe Drain hose more than Air Outlet... -
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. n 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 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.
- Page 6 Safety Precautions CAUTION n Installation Always check for gas (refrigerant) leakage after Install the drain hose to ensure that water is installation or repair of product. drained away properly. • Low refrigerant levels may cause failure of • A bad connection may cause water leakage. product.
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Page 7: Installation Of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit Installation of Indoor, Outdoor Unit Selection of the best location 1) Indoor unit Inspection hole Top view (600X600) Select location Control box (unit: mm) Install the air conditioner in the location that satisfies the following conditions. •... - Page 8 Installation of Indoor, Outdoor Unit Piping length and elevation Multi Piping Type 1.1 The maximun allowable level, piping length and Refrigerant Charge [Outdoor Unit] It does not matter which unit is higher. [Indoor Unit] 7.5m Standard Length Max piping Max total piping Model Additional Charge Charge(g/m)
- Page 9 Installation of Indoor, Outdoor Unit Indoor unit installation Wall Mounted Type 1. Route the indoor tubing and the drain hose in the direction of rear left or right Tape Connecting pipe Drain hose Connecting cable 2. Tape the tubing, drain hose and the connecting cable.
- Page 10 Installation of Indoor, Outdoor Unit n Indoor unit installation on installation plate 1. Hook the indoor unit onto the upper portion of Connecting the installation plate.(Engage the two hooks cable of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure Drain hose that the hooks are properly seated on the...
- Page 11 Installation of Indoor, Outdoor Unit 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 12 Installation of Indoor, Outdoor Unit n How to fix installation plate Installation Plate The wall you select should be strong and solid enough to prevent vibration Chassis 1. Mount the installation plate on the wall with Hook type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.
- Page 13 Installation of Indoor, Outdoor Unit Ceiling Concealed Duct Type n Installation of Unit Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. (Unit:mm) Dimension Capacity...
- Page 14 Installation of Indoor, Outdoor Unit • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. • Insert the set anchor and washer onto the suspension bolts for locking the suspension Old building New building bolts on the ceiling.
- Page 15 Installation of Indoor, Outdoor Unit Caution for gradient of unit and drain piping Lay the drain hose with a downward inclination so water will drain out. Thermal insulator • Always lay the drain with downward (Local supply) inclination (1/50 to 1/100). Drainage pipe Prevent any upward flow or reverse flow (Local supply)
- Page 16 Installation of Indoor, Outdoor Unit Insulation, others Insulate the joint and tubes completely. THERMAL INSULATION All thermal insulation must comply with local requirement. Union for liquid pipe Thermal insulator for refrigerant pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose clip for thermal insulator...
- Page 17 Installation of Indoor, Outdoor Unit 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. INSTALLATION OF THE REMOTE CONTROL BOX ROUTING OF THE REMOTE CONTROL CORD •...
- Page 18 Installation of Indoor, Outdoor Unit 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 19 Installation of Indoor, Outdoor Unit Ceiling Cassette Type • The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions. • Select and mark the position for fixing bolts and piping hole. 600 (Ceiling opening) •...
- Page 20 Installation of Indoor, Outdoor Unit NOTICE • Thoroughly study the following installation locations: 1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc.
- Page 21 Installation of Indoor, Outdoor Unit • The following parts is option. • Drill the piping hole on the wall slightly tilted to the ① Hanging Bolt - W 3/8 or M10 outdoor side using a Ø 70 hole-core drill. ② Nut - W 3/8 or M10 ③...
- Page 22 Installation of Indoor, Outdoor Unit n WIRED REMOTE CONTROL INSTALLATION (ACCESSARY) 1. Disassemble the remote controller from the installation board. • Use the driver as shown in the right picture and insert it into the hole with the arrow. And then you pull the driver in the front direction, the remote controller will be separated.
- Page 23 Installation of Indoor, Outdoor Unit 6. Use the connecting cable to connect the indoor unit and the remote controller. Check whether the connector is connected correctly. Indoor unit side Connecting cable 7. When the distance between the wired remote controller and the indoor unit is 10m and above, use the extension cable.
- Page 24 Installation of Indoor, Outdoor Unit n Wiring Connection • Open the control box cover and connect the Remote controller cord and Indoor power wires. Remote Controller Cable Connecting Cable Indoor unit Outdoor unit 24 Air Conditioner...
- Page 25 Installation of Indoor, Outdoor Unit n 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. Inlet grille 2.
- Page 26 Installation of Indoor, Outdoor Unit 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-DISP Vane control connector: CN-VANE 1,2 CN VANE 1,2...
- Page 27 Installation of Indoor, Outdoor Unit 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...
- Page 28 Installation of Indoor, Outdoor Unit CAUTION Flexible drain hose Flexible drain hose Flexible drain hose The supplied flexible drain hose 1/50~1/100 should not be curved, neither MAX 800mm screwed. The curved or screwed hose may cause a leakage of water. HEAT INSULATION 1.
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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 Preparation of Piping Main cause of gas leakage is defect in flaring Copper work. Carry out correct flaring work in the Slanted Uneven Rough tube 90° following procedure. - Page 30 Flaring Work and Connection of Piping 5. Check Smooth all round • Compare the flared work with figure below. Inside is shining without scratches • If flare is noted to be defective, cut off the flared section and do flaring work again. = Improper flaring = Inclined Surface...
- Page 31 Flaring Work and Connection of Piping Align the center of the piping and sufficiently tighten the flare nut by hand. When tightening side piping, tighten below. 1st, tighten gas side piping of A 2nd, tighten liquid side piping of A 3rd, tighten gas side piping of B 4th, tighten liquid side piping of B 5th, tighten gas side piping of C...
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Page 32: 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 33 Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Outdoor unit 1. Open the side panel cover from the outdoor unit by removing the screws. Outdoor unit 2. Connect wires to the terminals on the control board individually and secure the cables onto the control board with clamp.
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Page 34: 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 35 Checking the Drainage, Forming the Pipings and Long Pipe Setting Forming the piping Form the piping by wrapping the Hole size connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl Vinyl tape Main cable tape.
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Page 36: 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 37 Air Purging and Evacuation Soap water method The air conditioner is now ready to test run. 1. Remove the caps from the main service valves 2. Remove the service-port caps from the main service valves Gas side Liquid side piping 3.
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Page 38: 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 39: Optional Operation - Duct Types
Optional Operation - Duct Types Optional Operation - Duct Types Group Control It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent. Main PCB Indoor Unit 1 Indoor Unit 2 Indoor Unit 16 Terminal(Local Supply) Terminal(Local Supply) Terminal(Local Supply) - Page 40 Optional Operation - Duct Types E.S.P.(External Static Pressure) Setting Open the rear cover of the wired remote-controller to set the mode. Select one of three selectable modes as follows. n Without Zone System 1. Position V-H, F-H: • This position sets the maximum E.S.P as a default set. 2.
- Page 41 Optional Operation - Duct Types How to Set E.S.P? Procedure of RPM change: Ex) External Static pressure is 4mmAq for Model Name "LMNH242BHA0" • To protect the unit, compressor is designed to be off during E.S.P. setting. Push the "On/Off" button. The unit will start.
- Page 42 Optional Operation - Duct Types [Table. 1] Static Pressure(mmAq) Model Name Step CMM(CFM) Setting Value High 16.5(583) LMNC182BHA0 14.5(512) LMNH182BHA0 13(459) High 20(706) LMNC242BHA0 18(636 LMNH242BHA0 16(565) 1. Be sure to set the value refering table 1. Unexpected set value will cause mal- NOTICE function.
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Page 43: Combination Indoor Units
Combination indoor units Combination of indoor and outdoor unit The total capacity index of indoor units is the sum of capacity index of each units and should be within the capacity index of the outdoor unit. L4UC602FA2 L4UH602FA2 Up to 8 1. -
Page 44: 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...