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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.
TYPE : Standard inverter
P/NO : MFL67448507
www.lg.com
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Summary of Contents for LG Standard inverter
- Page 1 • 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 : Standard inverter www.lg.com P/NO : MFL67448507...
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Page 2: Table Of Contents
Single A Air Conditioner Installation Manual CONTENTS Safety Precautions ....................3 Installation of Outdoor Unit................6 Wiring Connection....................8 Connecting Pipes ....................11 Leakage test and Evacuation ................17 Test running .......................19 Function......................20 Self-diagnosis Function..................21 Installation Guide at the Seaside ..............22 2 Air Conditioner... -
Page 3: Safety Precautions
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. - Page 4 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. ■ Operation Do not share the outlet with Do not use the damaged Do not modify or extend the other appliances.
- Page 5 Safety Precautions ■ 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. •...
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Page 6: Installation Of Outdoor Unit
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 More than 300mm around front, back and side of the unit. - Page 7 Installation of Outdoor Unit Night Silent Operation setting 1. Open the Side panel or Top Cover of outdoor unit. 2. Set the SW01N (PIP SW2). AUUW18GD2 / AUUW24GD2 AUUW36GD2 / AUUW42GD2 (LUU187HV / LUU247HV) (LUU367HV / LUU427HV) 3. Close the Side panel or Top Cover. AUUW18GD2 / AUUW24GD2 AUUW36GD2 / AUUW42GD2 (LUU187HV / LUU247HV)
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Page 8: Wiring Connection
Wiring Connection Wiring Connection Electrical Wiring Perform the electrical wiring work according to the electrical wiring connection. • All wiring must comply with local requirements. ELCB • Select a power source that is capable of supply- Main power source ing the current required by the air conditioner. Switch box •... - Page 9 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.) •...
- Page 10 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.
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Page 11: 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 fol- Copper Slanted Uneven Rough lowing procedure. tube Cut the pipes and the cable. • Use the accessory piping kit or the pipes purchased locally. - Page 12 Connecting Pipes Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
- Page 13 Connecting Pipes Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.
- Page 14 Connecting Pipes Connecting the pipes to the Outdoor unit • Align the center of the piping and sufficiently tighten the flare nut by hand. Continuous • 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 Connecting Pipes • When connecting in a downward direction, knock <Figure 2> out the knock-out hole of the base pan. (refer to figure 2) Knock-out Base pan Preventing foreign objects from entering <Figure 3> (Figure3) • Plug the pipe through-holes with putty or insula- tion material(procured locally)to stop up all Liquid side piping gaps,as shown in the figure 3.
- Page 16 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...
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Page 17: Leakage Test And Evacuation
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. - Page 18 Leakage test and Evacuation Evacuation 1. Connect the charge hose end described in the pre- ceding steps to the vacuum pump to evacuate the Indoor unit tubing and indoor unit. Confirm the "Lo and Hi" knob of the manifold valve is open.
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Page 19: Test Running
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. -
Page 20: Function
Function Function Forced Cooling Operation • Adding the refrigerant in winter. Setting Procedure 1) Set the Dip Switch as follow after shutting the power source down. AUUW18GD2 / AUUW24GD2 AUUW36GD2 / AUUW42GD2 (LUU187HV / LUU247HV) (LUU367HV / LUU427HV) 2) Reset the power. 3) Red LED and Green LED of PCB lights during work. -
Page 21: Self-Diagnosis Function
Self-diagnosis Function Self-diagnosis Function Error Indicator (Outdoor) Outdoor Error 2 Times 2 Times 2 Times Ex) Error 21 (DC Peack) LED01G (RED) 1 Sec. 1 Sec. 1 Sec. 1 Time 1 Time 1 Time LED02G (GREEN) 2 Sec. 2 Sec. LED 1 LED 2 Indoor... -
Page 22: Installation Guide At The Seaside
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.
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