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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.

INSTALLATION MANUAL

AIR

CONDITIONER

TYPE : Standard inverter

www.lg.com

Copyright © 2015 - 2019 LG Electronics Inc. All Rights Reserved.

MFL69190205

Rev.01_051719

РУССКИЙ ЯЗЫК

УКРАÏНСЬКА

ҚАЗАҚ ТІЛІ

беларуская мова

O

ZBEK TILI

ENGLISH

Summary of Contents for UU49W

Page 1: ... standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly INSTALLATION MANUAL AIR CONDITIONER TYPE Standard inverter www lg com Copyright 2015 2019 LG Electronics Inc All Rights Reserved MFL69190205 Rev 01_051719 РУССКИЙ ЯЗЫК УКРАÏНСЬКА ҚАЗАҚ ТІЛІ беларуская мова O ZBEK TILI ENGLISH ...

Page 2: ... Connecting the cable to Outdoor Unit 13 CONNECTING PIPES 13 Preparation of Piping 14 Connecting the pipes to the Outdoor unit 16 Forming the piping 17 LEAKAGE TEST AND EVACUATION 17 Preparation 17 Leakage test 18 Evacuation 19 TEST RUNNING 21 FUNCTION 21 Forced Cooling Operation 22 SELF DIAGNOSIS FUNCTION 22 Error Indicator Outdoor 23 INSTALLATION GUIDE AT THE SEASIDE TABLE OF CONTENTS Table of c...

Page 3: ...hock For installation of the product always contact the service center or a professional installation agency Otherwise it may cause a fire electrical shock explosion or injury Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not attached securely it co...

Page 4: ...g the head of the plug and do not touch it with wet hands Otherwise it may cause a fire or electrical shock Do not use the power cord near the heating tools Otherwise it may cause a fire and electrical shock Do not open the suction inlet of the indoor outdoor unit during operation Otherwise it may electrical shock and failure Do not allow water to run into electrical parts Otherwise it may cause t...

Page 5: ...ct Otherwise it may cause vibration or water leakage Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules Operation Avoid excessive cooling and perform ventilation sometimes Otherwise it may do harm to your health Use a soft cloth to clean Do not use wax thinner or a strong detergent The appearance of the air conditioner may deteriorate change color ...

Page 6: ...m Sunroof Installation of Outdoor Unit Installation of Outdoor Unit 2 Piping length and the elevation n Single Operation If installed tube is shorter than 7 5 m additional charging is not necessary Additional Refrigerant A 7 5 xAdditional refrigerant g 6 Air Conditioner Outdoor unit Indoor unit A B Outdoor unit Indoor unit A B Unit mm Model Capacity Pipe Size mm inch Length A m Elevation B m Addit...

Page 7: ... Indoor H2 L1 L2 L1 L3 L1 L4 L1 L5 A Spec MAX 80 45 40 15 30 1 70 10 Installation Manual 7 ENGLISH n Refrigerant Additional Charging Method For additional charging method see below table Indoor Unit Refrigerant Additional charging g Duo Trio Quartet Refrigerant L1 b xB L2 L3 xC Refrigerant L1 b xB L2 L3 L4 xC Refrigerant L1 b xB L2 L3 L4 L5 xC C g m Pipe Size mm inch Ø 6 35 1 4 Ø 9 52 3 8 35 40 b ...

Page 8: ...SW02N SW01B for about 3 seconds within 3 minutes After main power on Ⓑ SW01B LED01H DIP SW2 A B MAIN PCB MAIN PCB UU42W 48W 60W UU43W 49W 61W LED01G LED02G SW02N SW01N B A LED01M LED02M 6 Possible combination of indoor units Synchro Duo Trio Quartet IDU INDOOR UNIT ODU OUTDOOR UNIT BD BRANACH DISTRIBUTOR UNIT REMO WIRED REMOTE CONTROLLER ODU BD IDU IDU REMO ODU BD IDU IDU IDU REMO BD IDU IDU IDU I...

Page 9: ...dow CH01 CH02 CH03 CH04 5 Press button to turn on the indoor 6 If you fail to perform the Addressing work repeat step 2 5 Night Silent Operation setting 1 Open the Side panel or Top Cover of outdoor unit 2 Set the SW01N PIP SW2 3 Close the Side panel or Top Cover SW01N PIP SW2 Indoor Unit No 2 Duo 1 Single Default 3 Trio 4 Quartet Table SW01N PIP SW2 Setting DIP SW2 6 SW01N SW01N UU18W UU24W UU30W...

Page 10: ...ls on the Outdoor unit 2 N 3 1 L Remote Controller CN REMO 2 N 3 1 L 2 N 3 1 L 2 N 3 1 L 2 N 3 4 4 4 4 5 5 5 5 1 L When using simultaneous Operation System use only one wired remote controller in the indoor units Simultaneous Operation Unit 2 3 4 Main Unit1 POWER INPUT 220 V 240 V L N 2 N 3 1 L CST DUCT CVT Connect the wires to the terminals on the control board individually according to the outdo...

Page 11: ...5 mm 10 3 mm Installation Manual 11 ENGLISH Model Phase Ø Area mm2 UU18W 24W 30W 1 2 5 UU36W UU42W UU48W UU60W 1 6 UU37W UU43W UU49W UU61W 3 2 5 For wiring use the designated power wire and connect firmly then secure to prevent outside pressure being exerted on the terminal block Use an appropriate screwdriver for tightening the terinal screws A screwdriver with a small head will strip the head an...

Page 12: ...r bushes are properly used in knock out holes after connecting main power Connecting cable terminal Power cord terminal Cord clamp Cord clamp Remove the side panel for wiring connection Use the cord clamp to fix the cord Earthing work Connect the cable of diameter more to the earthing terminal provided in the control box and do earthing Connecting the cable to Outdoor Unit 12 Air Conditioner CAUTI...

Page 13: ...t possible to put them on after flaring work Flaring work Carry out flaring work using dedicated flaring tool for R 410A as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again Installation Manual 13 ENGLISH Copper tube 90 S...

Page 14: ... with torque wrench ensure the direction for tightening follows the arrow on the wrench h When tighten the pipe hold the haxagonal body mm inch N m Ø 6 35 1 4 16 2 Ø 9 52 3 8 38 4 Ø 12 7 1 2 55 6 Ø 15 88 5 8 75 7 Outside diameter Torque Continuous Torque wrench Connecting Pipes Connecting the pipes to the Outdoor unit 14 Air Conditioner Forward Sideways Backward Downward Figure 1 ...

Page 15: ...s with putty or insulation material procured locally to stop up all gaps as shown in the figure 3 Knock out Base pan Gas side piping Liquid side piping Drain hose Connecting wire Connection pipe Figure 3 Putty or insulating material produced locally Figure 2 Installation Manual 15 ENGLISH CAUTION Insects or small animals entering the outdoor unit may cause a short circuit in the electrical box ...

Page 16: ...rom down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room 3 Fix the piping onto the wall by saddle or equivalent Trap Plastic band Seal a small opening around the pipings with gum type sealer Trap Trap Trap Seal a small opening Seal a small opening around the pipings around the pipings with gum type sealer with gum type sealer Seal a small open...

Page 17: ...AUTION Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 3 0 MPa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3 0 MPa Next test for leaks with liquid soap CAUTION To avoid nitrogen entering the refrigerant sys...

Page 18: ...ounter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 4 Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system 5 Replace the valve caps at both gas and liquid...

Page 19: ...outside temperature suction temperature blow out temperature wind velocity wind volume voltage current presence of abnormal vibration and noise operating pressure piping temperature compressive pressure As to the structure and appearance check following items 2 Connection of power supply 1 Connect the power supply cord to the independent power supply Circuit breaker is required 2 Operate the unit ...

Page 20: ...he rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaki...

Page 21: ...the machine Then close the gas valve after Green LED on WARNING When the green LED of PCB is on compressor is going to be off because of low pressure You should return the DIP Switch to operate normally after finishing the operation Improper Pump down will lead to product turn off along with LED green red off with in 20 minutes from the initial start 6 Pump Down DIP S W Setting Power on Red LED On...

Page 22: ...imes 1 times OFF 6 times 2 times OFF 6 times 5 times OFF 6 times 7 times OFF 21 DC Peak IPM Fault 22 Max CT CT2 23 DC Link Low Volt 24 Pressure switch Heater Sink 26 DC Comp Position Error 27 PFC Fault Error 29 Comp Over Current 32 D Pipe High Inv 40 CT Sensor Open Short 41 Inv D Pipe Th Error Open Short 43 High Pressure Sensor Open Short 44 Outdoor air Th Error Open Short 45 Cond Middle Pipe Th E...

Page 23: ...corrosion treatment on the heat exchanger Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Selecting the location Outdoor Unit 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opposite side of the sea wind direction 2 In case to install the ou...

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