background image

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.

P/NO : MFL67448509

Summary of Contents for ABUQ12GL2A0

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 P NO MFL67448509 ...

Page 2: ...al CONTENTS Safety Precautions 3 Installation of Outdoor Unit 6 Wiring Connection 9 Connecting Pipes 12 Leakage test and Evacuation 15 Test running 17 Function 19 Self diagnosis Function 20 Installation Guide at the Seaside 21 2 Air Conditioner ...

Page 3: ...er or a professional installation agency Otherwise it may cause a fire elec trical 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 out door unit are not attached securely it could result in a fire or electric shock due to dust water etc Alway...

Page 4: ... cause injury Do not share the outlet with other appliances It will cause an electric shock or a fire due to heat genera tion Do not use the damaged power cord Otherwise it may cause a fire or electrical shock Do not modify or extend the power cord randomly Otherwise it may cause a fire or electrical shock Take care so that the power cord may not be pulled dur ing operation Otherwise it may cause ...

Page 5: ...eep level parallel in installing the product Otherwise it may cause vibration or water leakage Avoid excessive cooling and perform venti lation 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 special purpose...

Page 6: ...R Ceiling Cassette Model Capacity Pipe Size Length A m Elevation B m Additional Refrigerant g m Gas Liquid Standard Max Standard Max AUUQ18GH1 5kW Ø12 7 1 2 Ø6 35 1 4 7 5 30 5 15 20 AUUQ21GH1 6kW Ø12 7 1 2 Ø6 35 1 4 7 5 30 5 15 20 AUUQ24GH1 7kW Ø15 88 5 8 Ø9 52 3 8 7 5 50 5 30 40 AUUQ36GH1 10kW Ø15 88 5 8 Ø9 52 3 8 7 5 50 5 30 40 AUUQ42GH1 12 5kW Ø15 88 5 8 Ø9 52 3 8 7 5 50 5 30 40 AUUQ48GH1 13 4k...

Page 7: ...2GLLA0 12 5kW Ø15 88 5 8 Ø9 52 3 8 7 5 50 5 30 40 AVUQ48GLLA0 13 4kW Ø15 88 5 8 Ø9 52 3 8 7 5 50 5 30 40 AVUQ54GLLA0 15 8kW Ø19 05 3 4 Ø9 52 3 8 7 5 50 5 30 40 Model Capacity Pipe Size Length A m Elevation B m Additional Gas Liquid Standard Max Standard Max g m ABUQ18GHLA0 ABUQ18GL2A0 5kW Ø12 7 1 2 Ø6 35 1 4 7 5 30 5 15 20 ABUQ21GHLA0 ABUQ21GL2A0 6kW Ø12 7 1 2 Ø6 35 1 4 7 5 30 5 15 20 ABUQ24GGLA0 ...

Page 8: ... ABUQ48GRLA0 ABUQ54GRLA0 6 AUUQ36GH1 ATUQ36GMLE3 AVUQ36GKLA0 ABUQ36GGLA0 AUUQ18GH1 AUUQ21GH1 AUUQ24GH1 ATUQ18GPLE3 ATUQ21GPLE3 ATUQ24GNLE3 AVUQ18GJLA0 AVUQ21GJLA0 AVUQ24GJLA0 ABUQ18GHLA0 ABUQ21GHLA0 ABUQ24GGLA0 ABUQ18GL2A0 ABUQ21GL2A0 ABUQ24GL3A0 AUUQ42GH1 AUUQ48GH1 AUUQ54GH1 ATUQ42GMLE3 ATUQ48GMLE3 ATUQ54GMLE3 AVUQ42GLLA0 AVUQ48GLLA0 AVUQ54GLLA0 ABUQ42GRLA0 ABUQ48GRLA0 ABUQ54GRLA0 If installed tu...

Page 9: ... to adequately disconnect all supply lines must be fitted Model of circuit breaker recommended by authorized personnel only Installation Manual 9 Connecting Cables between Indoor Unit and Outdoor Unit Outdoor unit Indoor unit 1 2 3 1 2 3 Model Phase Ø ELCB AUUQ18GH1 ATUQ18GPLE3 AVUQ18GJLA0 ABUQ18GHLA0 ABUQ18GL2A0 1 20A AUUQ21GH1 ATUQ21GPLE3 AVUQ21GJLA0 ABUQ21GHLA0 ABUQ21GL2A0 1 AUUQ24GH1 ATUQ24GNL...

Page 10: ...tside pres sure 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 and make proper tighterning impossible Over tightening the terminal screws may break them When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the...

Page 11: ... terminal Power cord terminal Cord clamp Make sure the rubber bushes are properly used in knock out holes after connecting main power 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 Installation Manual 11 CAUTION T...

Page 12: ...lare 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 flar ing 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 def...

Page 13: ... nut with torque wrench until the wrench clicks When tightening the flare nut 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 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 Outside diameter Torque Torque wrench Contin uous Connecting the pipes to the Outdoor unit Insta...

Page 14: ... from 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 op...

Page 15: ...ervice port with charge hoses CAUTION Be sure to use a mani fold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the man ifold valve must always be kept close Pressurize the system to no more than 3 0 Mpa with dry nitrogen gas and close the cylin der valve when the gauge reading reached 3 0 MPa Next test for leaks with liquid soap CAUTION To avoid nit...

Page 16: ...de valve counter 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 ...

Page 17: ...om temperature outside temperature suction temperature blow out tem perature 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 O...

Page 18: ...at they 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 voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note ...

Page 19: ...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 Green LED Off Comp on Red LED On Green LED On Pump Down Start Red LED On Green LED Off Liquid Valve Closed Gas Valve Closed Pump Down Comple...

Page 20: ...OFF 2times 7times OFF 2times 9times OFF 3times 2times OFF 4times 0 OFF 4times 1time OFF 4times 3times OFF 4times 4times OFF 4times 5times OFF 5times 1times OFF 5times 3times OFF 6times 0 OFF 6times 1times OFF 6times 2times OFF 6times 5times OFF 6times 7times 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 Com...

Page 21: ...osion 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 outdoo...

Page 22: ...22 Air Conditioner ...

Page 23: ......

Reviews: