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P/NO : MFL68061202

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.

ENGLISH

ESP

AÑOL

Summary of Contents for ANUQ54GS0

Page 1: ...s 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 ENGLISH ESPAÑOL ...

Page 2: ...ay deteriorate if the air 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 ...

Page 3: ...ck 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 coul...

Page 4: ...the power cable near the heating tools Otherwise it may cause a fire and electri cal 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 the failure of machine or electrical shock Hold the plug by the head when taking it out It may cause electric shock an...

Page 5: ...t Keep level parallel in installing the product Otherwise it may cause vibration or water leak age 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 or develop surface flaws Do not use an appliance for sp...

Page 6: ...NNECTION 9 Electrical Wiring 11 Connecting the cable to Outdoor Unit 12 CONNECTING PIPES 12 Preparation of Piping 13 Connecting the pipes to the Outdoor unit 15 Forming the Piping 16 LEAKAGE TEST AND EVACUATION 16 Preparation 16 Leakage test 17 Evacuation 18 TEST RUNNING 20 FUNCTION 20 Forced Cooling Operation 21 SELF DIAGNOSIS FUNC TION 21 Error Indicator Outdoor 22 INSTALLATION GUIDE AT THE SEAS...

Page 7: ...account and select a place where noise and vibration are minimum Select a place so that the warm air and noise from the air conditioner do not disturb neighbors More than 300mm Fence or obstacles More than 700mm More than 600mm More than More than 300mm 300mm More than 300mm Sunroof Unit mm Installation Places Piping length and the elevation INSTALLATION OF OUTDOOR UNIT MODEL CAPACITY Pipe Size Le...

Page 8: ...Indoor unit A B Outdoor unit Indoor unit A B Capacity is based on standard length and maximum allowance length is on the basis of reliability Improper refrigerant charge may result in abnormal cycle CAUTION Close the Side panel or Top Cover Open the Side panel or Top Cover of outdoor unit Set the SW01N Night Silent Operation setting 6 6 SW01N AUUQ54GHT0 ANUQ54GS0 AUUQ54GHT0 ANUQ54GS0 ...

Page 9: ...r 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 Outdoor Indoor Main power source Switch box ELCB Model Phase ø ELCB AUUQ54GHT0 ANUQ54GS0 1 40A WIRING CONNECTION Connecting Cables between Indoor...

Page 10: ... GN YL 20mm 35 5mm 10 3mm NORMAL CROSS SECTIONAL AREA 0 75mm2 20mm GN YL 35 5mm 10 3mm Model Phase Ø Area mm2 AUUQ54GHT0 ANUQ54GS0 1 6 Use round pressure terminals for connections to the power terminal block When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause abnormal heat When connecti...

Page 11: ...are properly used in knock out holes after connecting main power Connecting cable terminal Power cable terminal Cord clamp Cord clamp 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 referring the wiring diagram The Power cab...

Page 12: ...uts attached to indoor and outdoor unit then 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 flaring tool as shown below Firmly hold copper pipe in a bar in the dimension shown in the table below Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section an...

Page 13: ...orque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Continuous Torque wrench Forward Sideways Backward Downward Figure 1 When tighten the pipe hold the haxago nal body 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 Ø19 05 3 4 110 10 ...

Page 14: ...lly When connecting in a downward direction knock out the knock out hole of the base pan refer to figure 2 Preventing foreign objects from entering Figure3 Plug the pipe through holes with putty or insulation material procured locally to stop up all gaps as shown in the figure 3 Insects or small animals entering the out door unit may cause a short circuit in the electrical box CAUTION ...

Page 15: ...Drain hose Pipings Connecting cable Power supply cable Plastic Plastic band band Plastic band Seal a small Seal a small opening around opening around the pipings with the pipings with gum type sealer gum type sealer Seal a small opening around the pipings with gum type sealant Trap Seal a small opening around the pipings with gum type sealer In cases where the Outdoor unit is installed above the I...

Page 16: ...e cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position Do a leakage test of all joints of the tubing both Indoor unit and outdoor unit and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth After the system is found to be free of leaks relieve the nitrogen pre...

Page 17: ...ve stem of gas side valve counter 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 secure ly with an adjustable wrench This process is very important to prevent leakage from the sys tem Indoor unit Outdoor un...

Page 18: ...ndent power supply Circuit breaker is required Operate the unit for fifteen minutes or more Precautions In Test Running Connection of power supply Evaluation of the performance CAUTION For test run carry out the cooling operation firstly even during heating season If heating operation is carried out firstly it leads to the trouble of compressor Then attention must be paid Carry out the test run mo...

Page 19: ...ey are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated volt age marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the ...

Page 20: ...ting Procedure Set the Dip Switch as follow after shutting the power source down Reset the power Red LED and Green LED of PCB lights during work The indoor unit is operated by force If operation is done Red LED will be turned off If operation is not done normally Red LED will blink Close the Liquid valve only after green LED turned off 7 minutes from the start of the machine Then close the gas val...

Page 21: ...Open Short 4times 0 OFF 41 Inv D Pipe Th Error Open Short 4times 1time OFF 43 High Pressure Sensor Open Short 4times 3times OFF 44 Outdoor air Th Error Open Short 4times 4times OFF 45 Cond Middle Pipe Th Error Open Short 4times 5times OFF 51 Capacity over 5times 1times OFF 53 Communication Error Indoor Outdoor 5times 3times OFF 60 EEPROM Error Outdoor 6times 0 OFF 61 Cond Middle Pipe High 6times 1...

Page 22: ...t a well drained place Sea wind Sea wind Sea wind Windbreak Periodic more than once year clean ing of the dust or salt particles stuck on the heat exchanger by using water 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 th...

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