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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.:MFL70541908
REV.00_190515
Copyright © 2016 - 2019 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Related Manuals for LG ATUQ18GQSK1
Summary of Contents for LG ATUQ18GQSK1
- Page 1 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.:MFL70541908 Copyright © 2016 - 2019 LG Electronics Inc. All Rights Reserved. REV.00_190515...
- Page 2 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING... - Page 4 IMPORTANT SAFETY INSTRUCTIONS Operation • Do not share the outlet with other appliances. It will cause an electric shock or a fire due to heat generation. • Do not use the damaged power cable. Otherwise, it may cause a fire or electrical shock. •...
- Page 5 IMPORTANT SAFETY INSTRUCTIONS CAUTION Installation • Install the drain hose to ensure that drain can be securely done. Otherwise, it may cause water leakage. • Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.
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Page 6: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENER- LEAKAGE TEST AND EVACUATION Preparation IMPORTANT SAFETY Leakage test INSTRUCTIONS Evacuation INSTALLATION OF OUT- TEST RUNNING DOOR UNIT INSTALLATION GUIDE AT WIRING CONNECTION THE SEASIDE Electrical Wiring CONVENIENT FUNC- Connecting Cables between Indoor Unit TIONS and Outdoor Unit Connecting the cable to Outdoor Unit... -
Page 7: Installation Of Outdoor Unit
Pipe Size Length A (m) Elevation B (m) Additional MODEL Refrigerant (g/m) Liquid Standard Max. Standard Max. Ø 12.7 (1/2) Ø 6.35 (1/4) ATUQ18GQSK1 ATUQ24GQSK1 Ø 15.88(5/8) Ø 9.52(3/8) APUQ18GS1K1 Ø 12.7 (1/2) Ø 6.35 (1/4) APUQ30GS1K1 Ø 15.88(5/8) Ø 9.52(3/8) - Page 8 INSTALLATION OF OUTDOOR UNIT If installed tube is shorter than 7,5 m, additional charging is not necessary. Additional Refrigerant = (A -7,5) x Additional refrigerant (g) Indoor unit Outdoor unit Indoor unit Outdoor unit CAUTION • Capacity is based on standard length and maximum allowance length is on the basis of reliability.
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Page 9: Wiring Connection
- 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 Model Phase(Ø) ELCB ATUQ18GQSK1 ATUQ24GQSK1 APUQ18GS1K1 APUQ30GS1K1... -
Page 10: Connecting Cables Between Indoor Unit And Outdoor Unit
The power cord connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cord set complying with the national regulation. 10±3 mm Phase(Ø) Area(mm Model ATUQ18GQSK1 ATUQ24GQSK1 APUQ18GS1K1 APUQ30GS1K1 The connecting cable connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cord set complying with the national... - Page 11 WIRING CONNECTION Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block. Power wire Round pressure terminal 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 connecting wiring which is the same thickness, do as shown in the figure below.
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Page 12: Connecting The Cable To Outdoor Unit
WIRING CONNECTION Connecting the cable to Outdoor Unit Remove the side panel for wiring connection. Use the cord clamp to fix the cable. Earthing work - Connect the cable of diameter more to the earthing terminal provided in the control box and do earthing. -
Page 13: Connecting Pipes
CONNECTING PIPES CONNECTING PIPES Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. C C ut the pipes and the cable - Use the piping kit accessory or the pipes pur- chased locally. -
Page 14: Connecting The Pipes To The Outdoor Unit
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. -
Page 15: Forming The Piping
CONNECTING PIPES Forming the Piping In cases where the Outdoor unit is installed above the Indoor unit perform the following. Form the piping by wrapping the connecting Tape the piping and connecting cable from portion of the indoor unit with insulation mate- down to up. -
Page 16: Leakage Test And Evacuation
LEAKAGE TEST AND EVACUATION LEAKAGE TEST AND EVACUATION Air and moisture remaining in the refrigerant CAUTION system have undesirable effects as indicated below. To avoid nitrogen entering the refrigerant - Pressure in the system rises. system in a liquid state, the top of the cylinder must be higher than its bottom - Operating current rises. -
Page 17: Evacuation
LEAKAGE TEST AND EVACUATION Evacuation - Replace the valve caps at both gas and liquid side service valves and fasten them tight. - Connect the charge hose end described in This completes air purging with a vacuum pump. the preceding steps to the vacuum pump to The air conditioner is now ready to test run. -
Page 18: Test Running
TEST RUNNING TEST RUNNING 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. 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. - Page 19 TEST RUNNING CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 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.
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Page 20: Installation Guide At The Seaside
INSTALLATION GUIDE AT THE SEASIDE INSTALLATION GUIDE AT THE SEASIDE CAUTION In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind. • Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.
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