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TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance. The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below. This symbol is displayed to indicate matters and operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk.
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SAFETY INSTRUCTIONS • 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. •...
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SAFETY INSTRUCTIONS CAUTION Installation • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. • Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. - It may cause a problem for your neighbors.
SAFETY INSTRUCTIONS • Safely dispose of the packing materials. - Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. - Tear apart and throw away plastic packaging bags so that children may not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation.
TABLE OF CONTENTS TABLE OF CONTENTS Pipe Drawing Out TIPS FOR SAVING Selection of Refrigerant Piping ENERGY Refrigerant piping system Refrigerant charging SAFETY INSTRUCTIONS Distribution Method INSTALLATION Branch pipe Fitting Leak Test and Vacuum drying PROCESS Vacuum Mode OUTDOOR UNITS Heat insulation of refrigerant piping INFORMATION ELECTRICAL WIRING...
INSTALLATION PROCESS INSTALLATION PROCESS Indicate clearly who will be responsible for switch setting. Determination of division work Preparation of contract drawings Make connection clearly between outdoor, indoor, remote controller and option. Take account of gradient The foundation must be level even. Sleeve and insert work Outdoor unit foundation work of drain piping.
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OUTDOOR UNITS INFORMATION OUTDOOR UNITS INFORMATION CAUTION • Ratio of the connectable Indoor Units to the Outdoor: Within 50 ~ 160 % • Ratio of running Indoor Units to the Outdoor: Within 10 ~ 100 % • A combination operation over 100 % cause to reduce each indoor unit capacity. Series / Phase 0 Series / 3Ø...
OUTDOOR UNITS INFORMATION Series / Phase 0 Series / 1Ø System(HP) Refrigerant Precharged Amount Net weight 950 x 834 x 330 950 x 1 380 x 330 950 x 1 380 x 330 Dimensions (WxHxD) inch 37.4 x 32.8 x 13.0 37.4 x 54.3 x 13.0 37.4 x 54.3 x 13.0 Liquid Pipes...
ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A The refrigerant R410A has the property of higher operating pressure in comparison with R22. Therefore, all materials have the characteristics of higher resisting pressure than R22 ones and this characteristic should be also considered during the installation. R410A is an azeotrope of R32 and R125 mixed at 50:50, so the ozone depletion potential (ODP) of R410A is 0.
SELECT THE BEST LOCATION SELECT THE BEST LOCATION Select space for installing outdoor unit, which will meet the following conditions: • No direct thermal radiation from other heat sources • No possibility of annoying neighbors by noise from unit • No exposition to strong wind •...
INSTALLATION SPACE INSTALLATION SPACE • The following values are the least space for installation. If any service area is needed for service according to field circumstance, obtain enough service space. • The unit of values is mm. In case of obstacles on the suction side 1.
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INSTALLATION SPACE In case of obstacles on the discharge side 1. Stand alone installation [Unit:mm] 2. Collective installation U3, U4...
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INSTALLATION SPACE In case of obstacles on the suction and the discharge side Obstacle height of discharge side is higher than the unit 1. Stand alone installation [Unit:mm] L > H L > H 2. Collective installation L > H L >...
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INSTALLATION SPACE Obstacle height of discharge side is lower than the unit 1. Stand alone installation [Unit:mm] L ≤ H L ≤ H 2. Collective installation L ≤ H L ≤ H U3, U4 1 000 1 000...
INSTALLATION SPACE Collective / Continuous Installation for roof top use Space required for collective installation and continuous installation: When installing several units, leave space between each block as shown below considering passage for air and people. 1. One row of stand alone installation [Unit:mm] 2.
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INSTALLATION SPACE 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. •...
LIFTING METHOD LIFTING METHOD • When carrying the suspended, unit pass the ropes between legs of base panel under the unit. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. •...
INSTALLATION INSTALLATION • Install at places where it can endure the weight and vibration/noise of the outdoor unit. • The outdoor unit supports at the bottom shall have width of at least 100 mm under the Unit’s legs before being fixed. •...
INSTALLATION Foundation for Installation • Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust. • Use the H-beam support as a base support. • Noise and vibration may occur from the floor or wall since vibration is transferred through the installation part depending on installation status.
INSTALLATION Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes and the cable - Use the accessory piping kit or the pipes Copper Slanted Uneven Rough tube 90°...
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INSTALLATION Flare shape and flare nut tightening torque Precautions when connecting pipes - See the following table for flare part machining dimensions. - When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first.
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INSTALLATION Closing shutoff valve Remove the cap and turn the valve clockwise with the hexagon wrench. Securely tighten the valve until the shaft contacts the main body seal. Make sure to tighten the cap securely. - For the tightening torque, refer to the table on the below. Tightening torque Tightening torque N .
INSTALLATION Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
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INSTALLATION Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.
REFRIGERANT PIPING INSTALLATION REFRIGERANT PIPING INSTALLATION Precautions on Pipe connection / Valve operation Pipe connection is done by connecting from the end of the pipe to the branching pipes, and the refrigerant pipe coming out of the outdoor unit is divided at the end to connect to each indoor unit.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT - Pipe connections can be done on the front side or on the side according to the installation. - Be sure to let 0.2 kgf/cm Nitrogen flow in the pipe when welding. - If Nitrogen was not flown during welding, many oxidized membranes may form inside the pipe and disturb the normal operations of valves and condensers.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Remove leakage prevention cap • Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work. • Proceed the leakage prevention cap removal as follows: - Verify whether the liquid/gas pipes are locked. - Extract remaining refrigerant or air inside using the service port.
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Method of drawing out pipes on the bottom side - Drawing out common pipe through base panel Liquid pipe Gas pipe Remove only liquid/gas pipe Knock out Method of drawing out pipes on the rear side - Proceed with the pipe work as shown in the below figure for rear side pie drawing out.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Selection of Refrigerant Piping Outdoor unit Gas pipe Liquid pipe Branching pipe Main pipe Branching Indoor unit pipe Piping parts Name Selection of pipe size Size of main pipe Outdoor unit Liquid pipe Gas pipe capacity[HP] [mm(inch)]...
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Piping parts Name Selection of pipe size Connecting pipe size of indoor unit Indoor unit Liquid pipe Gas pipe Branching section capacity[kW(Btu/h)] [mm(inch)] [mm(inch)] Indoor unit ③ ↓ ≤ 5.6(19 100) Ø 6.35(1/4) Ø...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Y branch method Example : 5 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Indoor Units L 80 m l 40 m Total pipe length = A+B+C+D+a+b+c+d+e ≤ 300 m Longest pipe length Equivalent pipe length(*) A+B+C+D+e ≤...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant pipe diameter from outdoor unit to first branch. (A) Outdoor unit Liquid pipe [mm(inch)] Gas pipe [mm(inch)] total capacity (HP) Ø 9.52(3/8) Ø 15.88(5/8) Ø 9.52(3/8) Ø 15.88(5/8) Ø 9.52(3/8) Ø 19.05(3/4) Ø...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Header Method Example : 6 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : Header Ⓒ : Indoor Units Ⓓ : Sealed piping L 150 m 40 m 15 m Total pipe length = A+a+b+c+d+e+f ≤ 300 m Longest pipe length Equivalent pipe length(*) A+f ≤...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Header Method Example : 6 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : Header Ⓒ : Indoor Units Ⓓ : Sealed piping L 80 m 40 m Total pipe length = A+a+b+c+d+e+f ≤ 300 m Longest pipe length Equivalent pipe length(*) A+f ≤...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Combination of Y branch/header method Example : 5 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Y branch Ⓓ : Indoor Unit Ⓔ : Header Ⓕ : Sealed piping L 150 m 40 m Branch pipe can not be used after header...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Combination of Y branch/header method Example : 5 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Y branch Ⓓ : Indoor Unit Ⓔ : Header Ⓕ : Sealed piping L 80 m 40 m Branch pipe can not be used after header...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant pipe diameter from outdoor unit to first branch. (A) Outdoor unit Liquid pipe [mm(inch)] Gas pipe [mm(inch)] total capacity(HP) Ø 9.52(3/8) Ø 15.88(5/8) Ø 9.52(3/8) Ø 15.88(5/8) Ø 9.52(3/8) Ø 19.05(3/4) Ø 9.52(3/8) Ø...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Outdoor unit Connection WARNING • In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A, B should be of the same size with A. Indoor Unit Connection Indoor Unit connecting pipe from branch (a,b,c,d,e,f) Indoor Unit capacity Liquid pipe [mm(inch)]...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT The amount of Refrigerant The calculation of the additional charge should take into account the length of pipe and CF(correction Factor) value of indoor unit. Additional charge(kg) Total liquid pipe : Ø 12.7 mm x 0.118(kg/m) Total liquid pipe : Ø...
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT WARNING • Regulation for refrigerant leakage : The amount of refrigerant leakage should satisfy the following equation for human safety. Total amount of refrigerant in the system ≤ 0.44 ( kg / m Volume of the room at which Indoor Unit of the least capacity is installed If the above equation can not be satisfied, then follow the following steps.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Distribution Method Horizontal Distribution 3rd main pipe distribution Main pipe Distribution Main pipe Distribution Vertical Distribution - Ensure that the branch pipes are attached vertically. The others Header...
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Branch pipe Fitting Y branch Ⓐ To Branch Piping or Indoor Unit Ⓑ To Outdoor Unit • Ensure that the branch pipes are attached horizontally or vertically. (see the diagram below.) Horizontal Facing Facing plane downwards...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT • When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches. Pinched pipe •...
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Y branch pipe [unit:mm] Models Gas pipe Liquid pipe I.D 12.7 I.D 12.7 I.D 6.35 I.D 6.35 I.D 9.52 I.D 15.88 I.D 9.52 I.D 15.88 I.D 6.35 I.D 15.88 I.D 12.7 I.D 9.52 ARBLN01621 O.D 9.52 I.D 19.05...
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Leak Test and Vacuum drying Leak test Leak test should be made by pressurizing nitrogen gas to 3.8 MPa (38.7 kgf/cm ). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitrogen leaks.
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PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Vacuum Vacuum drying should be made from the service port provided on the outdoor unit’s service valve to the vacuum pump commonly used for liquid pipe, gas pipe and high/low pressure common pipe. (Make Vacuum from liquid pipe, gas pipe and high/low pressure common pipe with the service valve closed.) * Never perform air purging using refrigerant.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Vacuum Mode This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement. Vacuum mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’...
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Heat insulation of refrigerant piping Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves.
ELECTRICAL WIRING ELECTRICAL WIRING Caution - Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. WARNING Be sure to have authorized electrical engineers do the electric work using special circuits in accordance with regulations and this installation manual.
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ELECTRICAL WIRING CAUTION • Use the 2-core shield cables for communication cables. Never use them together with power cables. • The conductive shielding layer of cable should be grounded to the metal part of both units. • Never use multi-core cable. •...
ELECTRICAL WIRING Control box and connecting position of wiring - Remove all of the screws at side panel and remove the panel by pulling it forward. - Connect communication cables between outdoor unit and indoor units through the terminal block. - When the central control system is connected to the outdoor unit, a dedicated PCB must be connected between them.
ELECTRICAL WIRING Communication and Power Cables Communication cable - Types : shielding cable - Cross section : 1.0~1.5 mm - Maximum allowable temperature: 60 °C - Maximum allowable cable length: under 300 m Remote control cable - Types : 3-core cable Central control cable Product type Cable type...
ELECTRICAL WIRING Wiring of main power supply and equipment capacity - Use a separate power supply for the Outdoor Unit and Indoor Unit. - Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections. - The cable size is the minimum value for metal conduit wiring.
ELECTRICAL WIRING Field Wiring Outdoor Power supply (3-phase 4-wire) [Outdoor Unit] (Main Switch) R S T N Voltage range(V) Switch Frequency Outdoor Indoor Fuse Indoor 60 Hz 380 V 220 V Power supply (1-phase 2-wire) 50 Hz 380 ~ 415 V 220 ~ 240 V Power cable (4-wire Cable)
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ELECTRICAL WIRING Example) Connection of transmission wire [BUS type] [STAR type] - Connection of communication cable must be - Abnormal operation can be caused by installed like below figure between indoor communication defect, when connection of unit to outdoor unit. communication cable is installed like below figure(STAR type).
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ELECTRICAL WIRING Example) Connection of power and communication cable Front side Right side Main power Terminal block Insulation sleeves attachment Ground wire Power/ Fix firmly not to be Ground cable displaced ODU-IDU Communication cable Hold power cable Hold communication cable Power/ Ground cable Communication...
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ELECTRICAL WIRING Front view Right view Main power Terminal block Insulation Ground wire sleeves attachments Power/ Ground cable ODU-IDU Communication cable Over 50 mm gap Communication Power/ Ground cable cable...
ELECTRICAL WIRING Installation of IO Module(optional) ① Assemble IO Module and bracket. ② Fix the bracket on designated location with two clamp cords(105 mm). ③ Connect the connection wires according to the instructions. (Please refer to Setting and Using Method.) - About more information of IO Module, please refer to IO Module manual.
ELECTRICAL WIRING Checking the setting of outdoor units Checking according to DIP switch setting - You can check the setting values of the Master outdoor unit from the 7 segment LED. The DIP switch setting should be changed when the power is OFF. Checking the initial display The number is sequentially appeared at the 7 segment in 5 seconds after applying the power.
ELECTRICAL WIRING Automatic Addressing The address of indoor units would be set by Automatic Addressing - Wait for 3 minutes after supplying power. (IDU and ODU should be off.) - Press RED button of the outdoor units for 5 seconds. (SW01C) - A “88”...
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ELECTRICAL WIRING The Procedure of Automatic Addressing Power On Waiting for 3 minutes Press RED Button for 5 seconds (SW01C) Automatic addressing start 7-segment LED = 88 Don’t press RED Button (SW01C) • Automatic addressing setting end Numbers of indoor unit connection set whose addressing is completed are indicated for 30 seconds Waiting about 2~7 minutes on 7-segment LED after completing setting.
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ELECTRICAL WIRING Setting the function Select the mode/function/option/value using ‘▶’, ‘◀’ Button and confirm that using the ‘●’ button after DIP switch No.5 is turned on. DIP SWITCH DIP SWITCH 7-Segment 7-Segment SW04C ( X : cancel) SW03C ( : forward) SW03C ( : forward) SW04C ( X : cancel)
ELECTRICAL WIRING Group Number setting Group Number setting for Indoor Units - Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off. - The communication cables connected to CEN.A and CEN.B terminal should be connected to central control of Outdoor Unit with care for their polarity (A-A, B-B ).
ELECTRICAL WIRING Cool & Heat selector Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn1” Push the ‘●’ button Select the Option using ‘▶’, ‘◀’...
ELECTRICAL WIRING Static pressure compensation mode This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan discharge of ODU. Static pressure compensation mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’...
ELECTRICAL WIRING Night Low Noise Function In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low cooling load. Night low noise function setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’...
ELECTRICAL WIRING Setting the ODU address Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn5” Push the ‘●’ button Select the Option using ‘▶’, ‘◀’...
ELECTRICAL WIRING Snow removal & rapid defrost Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn6” Push the ‘●’ button Select the Option using ‘▶’, ‘◀’...
ELECTRICAL WIRING Target pressure adjusting Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘●’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn8” Push the ‘●’ button Select the Option using ‘▶’, ‘◀’...
ELECTRICAL WIRING Self-Diagnosis Function Error Indicator - This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. - Error mark is displayed on display window of indoor units and wired remote controller, and 7- segment LED of outdoor unit control board as shown in the table. - If more than two troubles occur simultaneously, lower number of error code is first displayed.
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ELECTRICAL WIRING Display Title Cause of Error Outdoor Unit Inverter Compressor The First Start Failure by Outdoor Unit Inverter 2 6 1 Start Failure Compressor Abnormality Outdoor Unit Inverter Compressor Outdoor Unit Inverter Compressor Fault OR Drive 2 9 1 Over Current Fault Outdoor Unit Inverter Compressor1...
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ELECTRICAL WIRING Display Title Cause of Error 6 7 1 Outdoor Unit Fan Lock Restriction of Outdoor Unit Converter CT Sensor Error of 7 1 1 Converter CT Sensor open or short of Outdoor Unit Outdoor Unit Outdoor Unit Main PCB EEPROM Communication Fail Between Outdoor Unit Main 8 6 1 Error...
CAUTION FOR REFRIGERANT LEAK CAUTION FOR REFRIGERANT LEAK The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. Introduction Though the R410A refrigerant is harmless and incombustible itself , the room to equip the air conditioner should be large to such an extent that the refrigerant gas will not exceed the limiting concentration even if the refrigerant gas leaks in the room.
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CAUTION FOR REFRIGERANT LEAK - With partition and without opening which serve as passage of air to adjoining room Outdoor unit Indoor unit Smallest room Calculate refrigerant concentration Total amount of replenished refrigerant in refrigerant facility (kg) In case the result of calculation exceeds = Refrigerant concentration the limiting concentration, perform the Capacity of smallest room where...
INSTALLATION GUIDE AT THE SEASIDE INSTALLATION GUIDE AT THE SEASIDE CAUTION In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind. • Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.
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Após o uso, estes itens devem ser descartados de forma adequada, sob pena de ocasionarem danos ao meio ambiente e à saúde humana. 2. A LG criou o Programa Coleta Inteligente, para facilitar e viabilizar o descarte adequado de parelhos celulares, pilhas e baterias.