LG AUUQ18GH0 Installation Manual Download | Manualshive

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P/NO : MFL67476601

www.lg.com

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 : Cooling Only Inverter

ENGLISH

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Summary of Contents for AUUQ18GH0

Page 1: ...ation 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 Cooling Only Inverter ENGLISH ...

Page 2: ...condition er is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You c...

Page 3: ... a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric ...

Page 4: ...CAUTION Installation Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage Keep level even when installing the product To avoid vibration or water leakage Do not install the product where the noise or hot air fr...

Page 5: ... drain hose to drain pipe 8 Connecting the pipes to the Outdoor unit 9 Forming the piping 10 LEAKAGE TEST AND EVACUATION 10 Preparation 10 Leakage test 11 Evacuation 12 WIRING CONNECTION 12 Electrical Wiring 13 Connecting the cable to Outdoor Unit 14 TEST RUNNING 16 NIGHT SILENT OPERA TION SETTING 16 SELF DIAGNOSIS FUNC TION 18 INSTALLATION GUIDE AT THE SEASIDE TABLE OF CONTENTS TABLE OF CONTENTS ...

Page 6: ...itioner do not disturb neigh bors More than 300 More than 700 More than 600 More than More than 300 300 Sunroof Fence or obstacles OUTDOOR OUTDOOR Unit Unit OUTDOOR Unit More than 300 Unit mm PIPING LENGTH AND THE ELEVATION If installed tube is shorter than 10 m additional charging is not necessary Additional Refrigerant A 10 x Additional refrigerant g Single Operation Outdoor unit Indoor unit A B...

Page 7: ...ove flare nuts attached to indoor and outdoor units than put them on pipe tube having completed burr removal Not 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 indi cated dimension in the table above Check Compare the flared work with figure below If flare is noted to b...

Page 8: ...nch ensure the direction for tightening follows the arrow on the wrench When tighten the pipe hold the haxagonal body CONNECTING PIPES 8 ENGLISH Outside diameter Torque mm inch N m Ø6 35 1 4 16 2 Ø9 52 3 8 38 4 Ø12 7 1 2 55 6 Ø15 88 5 8 75 7 Outside diameter Torque mm inch N m Ø6 35 1 4 16 2 Ø9 52 3 8 38 4 Ø12 7 1 2 55 6 Ø15 88 5 8 75 7 Indoor unit tubing Flare nut Pipings Torque wrench Indoor uni...

Page 9: ...ap 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 opening around the pipings with gum type sealant OUTDOOR OUTDOOR UNIT UNIT OUTDOOR UNIT Plastic band Seal a small opening around the pipings with gum type sealer OUTDOOR UNIT 9 CONNECTING PIPES ENGLISH The installation piping is connectable in 3 direct...

Page 10: ...uges and dry nitrogen gas cylinder to this service port with charge hoses 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 liq uid soap Do a leakage test of all joints of the tubing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wip...

Page 11: ...r clockwise to fully open the valve Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 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 Replace the valve caps at both gas and liquid side servi...

Page 12: ... that is capable of sup plying the current required by the air condi tioner Use a recognized ELCB Electric Leakage Circuit Breaker between the power source and the unit A disconnection device to ade quately disconnect all supply lines must be fitted Model of circuit breaker recommended by authorized personnel only Precautions when laying power wiring Use round pressure terminals for connections to...

Page 13: ...Make sure the rubber bushes are Properly used in knock out holes after connecting main Power cable Connecting cable terminal Power cord terminal Cord clamp Cord clamp CAUTION The circuit diagram is not subject to change without notice Be sure to connect wires according to the wiring diagram Connect the wires firmly so that not to be pulled out easily Connect the wires according to color codes by r...

Page 14: ...insulation complete refrigerant and drain piping Is there any leakage of refrigerant Is the remote controller switch operated Is there any faulty wiring Are not terminal screws loosened M4 118N cm 12kgf cm M5 196N cm 20kgf cm M6 245N cm 25kgf cm M8 588N cm 60kgf cm Connection of power supply Connect the power supply cord to the inde pendent power supply Circuit breaker is required Operate the unit...

Page 15: ...ected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires Specification of power source Confirm that electrical capacity is suffi cient Be sure that the starting voltage is main tained at more than 90 percent of the rated voltage marked on the name plate Confirm that the cable thickness is as ...

Page 16: ...low Fig Close the panel Error Indicator Outdoor Outdoor Unit Error Ex Error 21 DC Peak DIP Switch2 Function ON Night Silent Oper ation ON OFF Night Silent Oper ation OFF OFF OFF OFF ON ON ON WARNING Do not open the panel when operating the product OFF ON 1 Time 1 Time 1 Time 2 Times 2 Times 2 Times 1 Sec 2 Sec 2 Sec 1 Sec 1 Sec LED01G RED LED02G GREEN ...

Page 17: ...imes 8times OFF 29 Comp Over Current 2times 9times OFF 32 D Pipe High Inv 3times 2times OFF 41 Inv D Pipe Th Error Open Short 4times 1time OFF 44 Outdoor air Th Error Open Short 4times 4times OFF 45 Cond Middle Pipe Th Error Open Short 4times 5times OFF 46 Suction Pipe Th Error Open Short 4times 6times OFF 48 Cond Out Pipe Th Error Open Short 4times 8times OFF 51 Capacity over 5times 1time OFF 53 ...

Page 18: ...the windbreak for easy air flow Select a well drained place CAUTION Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced Do not install the product where it could be exposed to sea wind salty wind directly It can result corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or...

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