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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. www.lg.com P/NO : MFL67448509...
Single A Air Conditioner Installation Manual 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...
Safety Precautions Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. n Be sure to read before installing the air conditioner. n Be sure to observe the cautions specified here as they include important items related to safety. n Incorrect operation due to ignoring instruction will cause harm or damage.
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Safety Precautions Do not install the product at a place that there Use caution when unpacking and installing. is concern of falling down. • Otherwise, it may result in personal injury. • Sharp edges may cause injury. n Operation Do not share the outlet with Do not use the damaged Do not modify or extend the other appliances.
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Safety Precautions n Installation Install the drain hose to ensure that drain Install the product so that the noise or hot can be securely done. wind from the outdoor unit may not cause any damage to the neighbors. • Otherwise, it may cause water leakage. •...
Installation of Outdoor Unit Installation of Outdoor Unit 1. Installation Places • If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted. • Ensure that the spaces indicated by arrows around front, back and side of the unit.
Indoor disconnect all supply lines must be fitted. • Model of circuit breaker recommended by authorized personnel only Model Phase(Ø) ELCB AUUQ18GH1 (ATUQ18GPLE3) (AVUQ18GJLA0) (ABUQ18GHLA0) (ABUQ18GL2A0) AUUQ21GH1 (ATUQ21GPLE3) (AVUQ21GJLA0) (ABUQ21GHLA0) (ABUQ21GL2A0) AUUQ24GH1 (ATUQ24GNLE3) (AVUQ24GJLA0) (ABUQ24GGLA0) (ABUQ24GL3A0) AUUQ36GH1 (ATUQ36GMLE3) (AVUQ36GKLA0)(ABUQ36GGLA0) AUUQ42GH1...
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10±3mm NORMAL CROSS-SECTIONAL AREA 0.75mm Model Phase(Ø) Area(mm AUUQ18GH1/AUUQ21GH1/AUUQ24GH1 (ATUQ18GPLE3/ATUQ21GPLE3/ATUQ24GNLE3) (AVUQ18GJLA0/AVUQ21GJLA0/AVUQ24GJLA0) (ABUQ18GHLA0/ABUQ21GHLA0/ABUQ24GGLA0) (ABUQ18GL2A0/ABUQ21GL2A0/ABUQ24GL3A0) When the connection line between the indoor unit and AUUQ36GH1/AUUQ42GH1/AUUQ48GH1/AUUQ54GH1 (ATUQ36GMLE3/ATUQ42GMLE3/ATUQ48GMLE3/ATUQ54GMLE3) outdooor unit is over 40m, connect the telecommunication (AVNQ36GKLA0/AVNQ42GLLA0/AVNQ48GLLA0/AVNQ54GLLA0) line and power line separately. (ABUQ36GGLA0/ABUQ42GRLA0/ABUQ48GRLA0/ABUQ54GRLA0) If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent.
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Wiring Connection Connecting the cable to Outdoor Unit • 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 Pipes Connecting Pipes Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the fol- Copper Slanted Uneven Rough lowing procedure. tube Cut the pipes and the cable. • Use the accessory piping kit or the pipes purchased locally.
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Connecting Pipes Connecting the pipes to the Outdoor unit • Align the center of the piping and sufficiently tighten the flare nut by hand. • Finally, tighten the flare 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.
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Seal a small opening around the pipings with Connecting Pipes gum type sealer. Forming the piping Plastic band Form the piping by wrapping the connecting portion of the indoor Seal a small Seal a small Seal a small unit with insulation material and opening around opening around opening around...
Leakage test and Evacuation Leakage test and Evacuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5.
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Leakage test and Evacuation Evacuation 1. Connect the charge hose end described in the pre- Indoor unit ceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo and Hi" knob of the manifold valve is open.
Test running Test running 1. PRECAUTIONS IN TEST RUNNING • The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated. ① For test run, carry out the cooling operation firstly even during heat- CAUTION ing season.
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Test running CAUTIO N: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover.
(ATUQ18GPLE3/ ATUQ21GPLE3/ ATUQ24GNLE3) (ATUQ36GMLE3) (ATUQ42GMLE3/ ATUQ48GMLE3/ ATUQ54GMLE3) (AVUQ18GJLA0/ AVUQ21GJLA0 / AVUQ24GJLA0) (AVUQ36GKLA0) (AVUQ42GLLA0/ AVUQ48GLLA0/ AVUQ54GLLA0) (ABUQ18GHLA0/ ABUQ21GHLA0/ ABUQ24GGLA0) (ABUQ36GGLA0) (ABUQ42GRLA0/ ABUQ48GRLA0/ ABUQ54GRLA0) (ABUQ18GL2A0/ ABUQ21GL2A0/ ABUQ24GL3A0) 2) Reset the power. 3) Red LED and Green LED of PCB lights during work.
Installation Guide at the Seaside Installation Guide at the Seaside CAUTION: 1. Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. 2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product.