LG ABUW36GM3S2 Installation Manual

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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.

Ceiling Concealed Duct / Cassette type / Floor Stand

MFL68061236

Rev.00_011723

www.lg.com

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Summary of Contents for LG ABUW36GM3S2

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. Ceiling Concealed Duct / Cassette type / Floor Stand www.lg.com MFL68061236 Rev.00_011723 Copyright © 2023 LG Electronics Inc. All Rights Reserved.
Page 2: Tips For Saving Energy
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 con- ditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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 • Use caution when unpacking and installing. Sharp edges may cause injury. • Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened. - Otherwise, it may cause fire, electric shock, explosion or death. •...
Page 5 IMPORTANT SAFETY INSTRUCTIONS • This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Page 6: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION OF OUTDOOR UNIT Installation Places Piping length and the elevation Night Silent Operation setting WIRING CONNECTION Electrical Wiring Connecting Cables between Indoor Unit and Outdoor Unit Connecting the cable to Outdoor Unit CONNECTING PIPES Preparation of Piping...
Page 7: Installation Of Outdoor Unit
INSTALLATION OF OUTDOOR UNIT INSTALLATION OF OUTDOOR UNIT 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. - Do not place animals and plants in the path of the warm air.
Page 8: Night Silent Operation Setting
INSTALLATION OF OUTDOOR UNIT Indoor unit Outdoor unit Indoor unit Outdoor unit CAUTION • Capacity is based on standard length and maximum allowance length is on the basis of re- liability. • Improper refrigerant charge may result in abnormal cycle. Night Silent Operation setting - Open the Side panel or Top Cover of outdoor unit.
Page 9: Wiring Connection
WIRING CONNECTION WIRING CONNECTION Electrical Wiring Perform the electrical wiring work according to the electrical wiring connection. ELCB Main - All wiring must comply with local require- power source ments. Switch box - Select a power source that is capable of sup- plying the current required by the air condi- tioner.
Page 10 WIRING CONNECTION CAUTION The power cable connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cable set complying with the national regulation. 10±3 mm 10±3 mm For the 1-Phase For the 3-Phase Capacity - Heating/Cooling Phase(Ø)
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.
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. Cut the pipes and the cable - Use the piping kit accessory or the pipes pur- Copper Slanted Uneven Rough chased locally.
Page 14: Connecting The Pipes To The Outdoor Unit
CONNECTING PIPES Connecting the pipes to the <Figure 1> 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 CAUTION In cases where the Outdoor unit is installed above the Indoor unit perform the following. Tape the piping and connecting cable from Insects or small animals entering the out- down to up. door unit may cause a short circuit in the electrical box.
Page 16: Leakage Test And Evacuation
LEAKAGE TEST AND EVACUATION LEAKAGE TEST AND EVACUATION CAUTION Air and moisture remaining in the refrigerant 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.
Page 20: Function
FUNCTION FUNCTION Forced Cooling Operation Adding the refrigerant in winter. Setting Procedure - Set the DIP Switch as follow after shutting the power source down. 4 5 6 18k, 21k 24k, 27k, 28k, 30k, 34k, 36k, 38k, 40k 48k, 50k, 53k, 54k, 55k, 60k Heating/Cooling Heating/Cooling Heating/Cooling...
Page 21: Self-Diagnosis Function
SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Error Indicator (Outdoor) 2 Times 2 Times 2 Times LED1 (RED) (RED) 1 Second 1 Second 1 Second 1 Time 1 Time 1 Time 1 Second 2.5 Seconds 1 Second 2.5 Seconds 1 Second LED2 (GREEN) 2 Seconds 2 Seconds Outdoor Error...
Page 22 SELF-DIAGNOSIS FUNCTION (Red) (Green) Indoor Error Code Description status LED 1 LED 2 (Red) (Green) 2times ◑ 1time ◑ DC Peak(IPM Fault) 2times ◑ 2times ◑ Max. CT(CT2) 2times ◑ 3times ◑ DC Link Low Volt. 2times ◑ 6times ◑ DC Comp Position Error 2times ◑...
Page 23: 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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