LG MULTI V ARUN***CTE4 Installation Manual
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LG MULTI V ARUN***CTE4 Installation Manual

LG MULTI V ARUN***CTE4 Installation Manual

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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.your set and retain it for future reference.
P/NO : MFL68460402
http://www.lghvac.com
www.lg.com

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Summary of Contents for LG MULTI V ARUN***CTE4

  • Page 1: Installation Manual

    • 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.your set and retain it for future reference. http://www.lghvac.com www.lg.com P/NO : MFL68460402...

  • Page 2: Ergy

    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: •...

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
  • Page 4 IMPORTANT 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. •...

  • Page 5: Installation

    IMPORTANT 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.
  • Page 6 IMPORTANT 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.

  • Page 7: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS Distribution Method TIPS FOR SAVING EN- Branch pipe Fitting ERGY Leak Test and Vacuum drying Vacuum Mode IMPORTANT SAFETY IN- Thermal insulation of refrigerant piping STRUCTIONS ELECTRICAL WIRING INSTALLATION Caution PROCESS Control box and connecting position of wiring OUTDOOR UNITS IN- Communication and Power Cables...

  • Page 8: Installation Process

    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...

  • Page 9: Outdoor Units Information

    OUTDOOR UNITS INFORMATION OUTDOOR UNITS INFORMATION CAUTION Combination Ration (50~130%) Outdoor Number Connection Capacity Single outdoor units 130% Double outdoor units 130% Triple outdoor units 130% Notes : * We can guarantee the operation only within 130% Combination. Model Name : ARUN***CTE4 Power Supply Outdoor Unit (3Ø, 575V, 60Hz) Chassis Combination Unit...
  • Page 10 OUTDOOR UNITS INFORMATION Chassis UX2+UX3 UX2+UX3 Combination Unit ARUN192CTE4 ARUN216CTE4 ARUN121CTE4 ARUN144CTE4 Model Name Independent Unit ARUN072CTE4 ARUN072CTE4 Refrigerant name R410A R410A Refrigerant Control Number of maximum connectable indoor units (195 × 1) + (245 × 1) (195 × 1) + (285 × 1) Net Weight (430 ×...
  • Page 11 OUTDOOR UNITS INFORMATION Chassis UX3+UX3 UX3+UX3+UX3 Combination Unit ARUN337CTE4 ARUN360CTE4 ARUN168CTE4 ARUN144CTE4 Model Name Independent Unit ARUN168CTE4 ARUN121CTE4 ARUN096CTE4 Refrigerant name R410A R410A Refrigerant Control Number of maximum connectable indoor units (285 × 2) (245 × 2) + (285 × 1) Net Weight (628 ×...

  • Page 12: Alternative Refrigerant R410A

    ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A 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.

  • Page 13: Select The Best Location

    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 •...

  • Page 14: Installation Space

    INSTALLATION SPACE INSTALLATION SPACE Individual Installation During the installation of the unit, consider service, inlet, and outlet and acquire the minimum space as shown in the figures below. Case 1 Case 2 Category Installation Space (10mm≤Side Space≤49mm) (Side Space≥49mm) A≥10(13/32”) A≥50(1-31/32”) B≥300(11-13/16”) B≥100(3-15/16”)
  • Page 15 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. •...

  • Page 16: Lifting Method

    LIFTING METHOD LIFTING METHOD • When carrying the suspended, unit pass the ropes under the unit and use the two suspension points each at the front and rear. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. •...

  • Page 17: Installation

    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 100mm(3-15/16 inch) under the Unit’s legs before being fixed. •...

  • Page 18: Foundation For Installation

    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.

  • Page 19: Preparation Of Piping

    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 pur- Copper Slanted Uneven Rough tube chased locally.
  • Page 20 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.
  • Page 21 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·m(lbs·ft) (Turn clockwise to close) Shut off...

  • Page 22: Plumbing Materials And Storage Methods

    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...
  • Page 23 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.

  • Page 24: Refrigerant Piping Installation

    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.

  • Page 25: Pipe Connections Between Indoor And Outdoor 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 envi- ronments. - Be sure to let 0.2kgf/cm (0.284lbs/in ) Nitrogen flow in the pipe when welding.

  • Page 26: Pipe Drawing Out During Single / Series Connection

    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.
  • Page 27 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Method of drawing out pipes on the bottom side - Drawing out common pipe through side panel Liquid pipe Gas pipe Remove only liquid/gas pipe Knock out...

  • Page 28: Refrigerant Piping System

    PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant piping system Y branch method 1 Outdoor Units Example : 5 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Indoor Units L150m(492ft) (200m(656ft) : Conditional application) l 40m(131ft) (90m(295ft) : Conditional application) 40m(131ft) 2 Outdoor Units...
  • Page 29 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT 3 Outdoor Units Slave2 Slave1 Example : 5 Indoor Units connected Master Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) (323ft) ODU Capacity or less Master ≥ Slave1 ≥ Slave 2 Ⓒ...
  • Page 30 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant pipe diameter from branch to branch (B,C,D) Downward Indoor Unit Liquid pipe [mm(inch)] Gas pipe [mm(inch)] total capacity [kW(Btu/h)] ≤ 5.6(19,100) Ø6.35(1/4) Ø12.7(1/2) < 16.0(54,600) Ø9.52(3/8) Ø15.88(5/8) ≤ 22.4(76,400) Ø9.52(3/8) Ø19.05(3/4) < 33.6(114,700) Ø9.52(3/8) Ø22.2(7/8) <...
  • Page 31 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Refrigerant pipe diameter from outdoor unit to first branch. (A) Increased Pipe Diameter Upward Out- door unit Standard Pipe Diameter When pipe length is 90m(295ft) When level difference is total capacity or more from ODU to 1st branch 50m(164ft) or more Liquid pipe Gas pipe...
  • Page 32 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT 3 Outdoor Units Slave2 Example : 6 Indoor Units connected Slave1 Master Ⓐ : Outdoor Unit Ⓑ : Header branch ODU Capacity Master ≥ Slave1 ≥ Slave2 Ⓒ : Indoor Units (33ft) or less Ⓓ...
  • Page 33 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT WARNING Pipe length after header branching (a~f) It is recommended that difference in length of the pipes connected to the Indoor Units is minimized. Performance difference between Indoor Units may occur. • * : Assume equivalent piping length of Y branch to be 0.5m(1.64ft), that of header to be 1m(3.28ft), calculation purpose.
  • Page 34 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT 3 Outdoor Units Slave2 Example : 5 Indoor Units connected Slave1 Master Ⓐ : Outdoor Unit ODU Capacity Ⓑ : 1st branch(Y branch) Master ≥ Slave1 ≥ Slave2 (33ft) or less Ⓒ : Y branch Ⓓ...
  • Page 35 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Total pipe length = A+B+C+a+b+c+d+e ≤ 1000m(3281ft) Longest pipe length *Equivalent pipe length A+B+b ≤ 150m(492ft)[200m(656ft)**] A+B+b ≤ 175m(574ft)[225m(738ft)**] Longest pipe length after 1st branch B+b ≤ 40m(131ft)[90m(295ft)**] Difference in height (Outdoor Unit ÷ Indoor Unit) H ≤...
  • Page 36 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 diame- ter A, B should be of the same size with A. Ex) In case indoor unit combination ratio ratio 130% is connected to 24HP(70kW) outdoor unit.
  • Page 37 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Pipe Connection Method/Precautions for Series connections between Outdoor units - Separate Y branch joints are needed for series connections between outdoor units. - Please refer to the below connection examples to install pipe connections between outdoor units.
  • Page 38 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT - The pipes between the outdoor units must maintain horizontal levelness or give an inclination to prevent a back flow toward the slave outdoor unit. Otherwise, the unit may not operate prop- erly. (Example 1) Toward indoor unit Toward indoor unit...
  • Page 39 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT - When connecting the pipes between the outdoor units, the accumulation of oil in the slave out- door unit should be avoided. Otherwise, the unit may not operate properly. (Example 1) Toward indoor unit Toward indoor unit (Example 2) Toward indoor unit...
  • Page 40 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(correc- tion Factor) value of indoor unit. Additional charge(kg) Total liquid pipe : Ø25.4 mm (1.0 inch) x 0.480 kg/m (0.323 lbs/ft) Total liquid pipe : Ø22.2 mm (7/8 inch) x 0.354 kg/m (0.238 lbs/ft)

  • Page 41: Refrigerant Charging

    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 ≤ 0.44kg/m (0.028lbs/ft 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.

  • Page 42: Distribution Method

    PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Distribution Method Horizontal Distribution Slave Master Slave 3rd Main pipe distribution Master Slave Master Main pipe Distribution Main pipe distribution Vertical Distribution - Ensure that the branch pipes are attached vertically. Slave Master Slave Master The others...

  • Page 43: Branch Pipe Fitting

    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...
  • Page 44 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 •...
  • Page 45 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Y branch pipe [Unit:mm(inch)] Models Gas pipe Liquid pipe I.D12.7(1/2) I.D6.35(1/4) I.D12.7(1/2) I.D6.35(1/4) I.D9.52(3/8) I.D9.52(3/8) I.D15.88(5/8) I.D15.88(5/8) I.D6.35(1/4) I.D15.88(5/8) (2-29/32) ARBLN01621 (2-29/32) I.D9.52(3/8) I.D12.7(1/2) 281(11-1/16) 281(11-1/16) 292(11-1/2) 292(11-1/2) O.D9.52(3/8) I.D19.05(3/4) O.D15.88(5/8) I.D12.7(1/2) 70(2-3/4) 70(2-3/4) I.D15.88(5/8) I.D19.05(3/4) I.D12.7(1/2)
  • Page 46 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Header [Unit:mm(inch)] Models Gas pipe Liquid pipe 360(14-5/32) 360(14-5/32) 120(4-23/32) 120(4-23/32) ID12.7(1/2) ID6.35(1/4) ID6.35(1/4) ID12.7(1/2) 4 branch ID15.88(5/8) ID9.52(3/8) (5-29/32) ID9.52(3/8) ID15.88(5/8) (4-23/32) ARBL054 (5-29/32) (4-23/32) ID12.7(1/2) ID9.52(3/8) ID19.05(3/4) ID15.88(5/8) 540(21-1/4) 540(21-1/4) 120(4-23/32) 120(4-23/32) ID12.7(1/2) ID6.35(1/4)

  • Page 47: Leak Test And Vacuum Drying

    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(551.1psi). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitro- gen leaks.
  • Page 48 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.

  • Page 49: Vacuum Mode

    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 ‘▶’, ‘◀’...

  • Page 50: Thermal Insulation Of Refrigerant Piping

    PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT Thermal insulation of refrigerant piping Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe sepa- rately 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.

  • Page 51: Electrical Wiring

    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.
  • Page 52 ELECTRICAL WIRING Outdoor Unit Outdoor Unit Master Slave1 Slave2 Master Slave1 Slave2 Indoor Indoor Indoor Indoor Unit Unit Unit Unit Remote Remote Remote Remote controller controller controller controller Outdoor Unit Outdoor Unit Master Slave1 Slave2 Master Slave1 Slave2 Indoor Indoor Indoor Indoor Unit...

  • Page 53: Control Box And Connecting Position Of Wiring

    ELECTRICAL WIRING Control box and connecting position of wiring - Remove all of the screws at front panel and remove the panel by pulling it forward. - Connect communication cable between main and sub outdoor unit through the terminal block. - Connect communication cables between outdoor unit and indoor units through the terminal block.

  • Page 54: Communication And Power Cables

    ELECTRICAL WIRING Communication and Power Cables Communication cable - Types : shielding cable - Cross section : 1.0~1.5mm (1.55x10 ~2.32x10 - Maximum allowable temperature: 140°F - Maximum allowable cable length: under 1,000m(3,281ft) Remote control cable - Types : 3-core cable Central control cable Product type Cable type...

  • Page 55: Wiring Of Main Power Supply And Equipment Capacity

    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.

  • Page 56: Field Wiring(3Ø, 575V)

    ELECTRICAL WIRING Field Wiring(3Ø, 575V) 60Hz Example Connection of Communication Cable • 1 Outdoor Unit - 3Ø, 575V Power supply 3 Phase 3 Wires 60Hz 575V [Outdoor Unit] (Main Switch) R S T Switch ELCB Power supply 1 Phase 60Hz 220~240V Power Line (3 Wires Cable)
  • Page 57 ELECTRICAL WIRING [Heat Pump] Between Indoor and Master Outdoor unit Master SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 Outdoor Unit NOTE - Field Wiring diagram is to be used as a guideline only. Wiring should comply with applica- ble local and national codes - ELCB must have function to prevent electrical short and over current at the same time .
  • Page 58 ELECTRICAL WIRING • 2 Outdoor Units - 3Ø, 575V - When the power source is connected in series between the units. Power Supply 3phase 3wires 60Hz 575V [Master] [Slave] (Main Switch) R S T Switch ELCB Power Supply 1phase 60Hz 220~240V Power Line (3 Wires Cable)
  • Page 59 ELECTRICAL WIRING WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during cur- rent leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit sepa- rately from the power supply.
  • Page 60 ELECTRICAL WIRING • 3 Outdoor Units - 3Ø, 575V - When the power source is connected in series between the units. Power supply 3 Phase 3 Wires 60Hz 575V [Master] [Slave1] [Slave2] (Main Switch) R S T Switch ELCB Power supply 1 Phase 60Hz 220~240V Power Line...
  • Page 61 ELECTRICAL WIRING WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during cur- rent leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit sepa- rately from the power supply.
  • Page 62 ELECTRICAL WIRING • Example Connection of Transmission Cable [BUS type] [STAR type] - Abnormal operation can be caused by com- - Connection of transmission cable must be installed like below figure between indoor munication defect, when connection of transmission cable is installed like below unit to outdoor unit.
  • Page 63 ELECTRICAL WIRING Example) Connection of power and communication cable (UX2) Left Side Right Side Main power Main power terminal block terminal block Ground wire Ground wire Power/ Power/ Ground cable Ground cable Over Over 50mm(1.97inch) 50mm(1.97inch) Communication Communication cable cable Front Side 1 Front Side 2 Main power...
  • Page 64 ELECTRICAL WIRING Example) Connection of power and communication cable (UX3) Left Side Right Side Main power Main power terminal block terminal block Ground wire Ground wire Power/ Power/ Ground cable Ground cable Over Over 50mm(1.97inch) 50mm(1.97inch) Communication Communication cable cable Front Side 1 Front Side 2 Main power...

  • Page 65: Checking The Setting Of Outdoor Units

    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.

  • Page 66: Automatic Addressing

    ELECTRICAL WIRING Automatic Addressing The address of indoor units would be set by Automatic Addressing - Wait for 3 minutes after supplying power. (Master and Slave outdoor units, indoor units) - Press RED button of the outdoor units for 5 seconds. (SW01C) - A “88”...
  • Page 67 ELECTRICAL WIRING The Procedure of Automatic Addressing Power On Waiting 3 minutes Press RED Button for 5 sec. (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 30seconds Waiting about 2~7 minutes on 7-segment LED after completing setting...
  • Page 68 ELECTRICAL WIRING Setting the function Select the mode/function/option/value using ‘▶’, ‘◀’ Button and confirm that using the ‘●’ but- ton after dip switch No.5 is turned on. DIP-SW01 7 - Segment SW04C ( : cancel) SW03C ( : forward) SW02C ( : backward) SW01C ( : confirm) SW01D (reset)

  • Page 69: Group Number Setting

    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 ).

  • Page 70: Test Run

    TEST RUN TEST RUN 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”...

  • Page 71: Static Pressure Compensation Mode

    TEST RUN 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 ‘▶’, ‘◀’...

  • Page 72: Night Low Noise Function

    TEST RUN 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 ‘▶’, ‘◀’...

  • Page 73: Overall Defrost Mode

    TEST RUN Overall defrost mode 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 : “Fn4” Push the ‘●’ button Select the Option using ‘▶’, ‘◀’...

  • Page 74: Setting The Odu Address

    TEST RUN 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 ‘▶’, ‘◀’...

  • Page 75: Snow Removal & Rapid Defrost

    TEST RUN 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 ‘▶’, ‘◀’...

  • Page 76: Target Pressure Adjusting

    TEST RUN 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 : Select the Function using ‘▶’, ‘◀’ Button : “Fn8”...

  • Page 77: Self-Diagnosis Function

    TEST RUN Self-Diagnosis Function Error Indicator - This function indicates types of failure in self-diagnosis and occurrence of failure for air condi- tion. - 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.
  • Page 78 TEST RUN Display Title Cause of Error 3 4 * High Pressure of Master Outdoor Unit High Pressure of Master Outdoor Unit 3 5 * Low Pressure of Master Outdoor Unit Low Pressure of Master Outdoor Unit 3 6 * Master Outdoor Unit Low Compression Ratio Limited Master Outdoor Unit Low Compression Ratio Limited Master Outdoor Unit Inverter Com- Master Outdoor Unit Inverter Compressor CT Sen-...
  • Page 79 TEST RUN Display Title Cause of Error Communication Error Between Failing to receive Slave Unit signal at main 1 0 4 * Master Outdoor Unit and Other PCB of Master Outdoor Unit Outdoor Unit Master Outdoor Unit Fan PCB Failing to receive fan signal at main PCB 1 0 5 * Communication Error of Master unit.

  • Page 80: Caution For Refrigerant Leak

    CAUTION FOR REFRIGERANT LEAK CAUTION FOR REFRIGERANT LEAK The installer and system specialist shall secure safety against leakage according to local regula- tions 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.
  • Page 81 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 case the result of calculation exceeds in refrigerant facility [kg(lbs)] = Refrigerant concentration the limiting concentration, perform the...

  • Page 82: Installation Guide At The Seaside

    INSTALLATION GUIDE AT THE SEASIDE INSTALLATION GUIDE AT THE SEASIDE In case, to install the outdoor unit on the sea- CAUTION side, 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.
  • Page 83 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...

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