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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 : 4-WAY CEILING CASSETTE (Cooling only Inverter)
P/NO : MFL67500701
www.lg.com
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Summary of Contents for LG MFL67500701
- 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. TYPE : 4-WAY CEILING CASSETTE (Cooling only Inverter) www.lg.com P/NO : MFL67500701...
- 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 • Do not install the product on a defective installation stand. - It may cause injury, accident, or damage to the product. • Be sure the installation area does not deteriorate with age. - If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.
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Page 5: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENER- INSTALLATION INSTRUCTIONS Installer Setting -How to enter installer setting mode IMPORTANT SAFETY Installer Setting - Installer Setting Code INSTRUCTIONS Table Installer Setting - Setting Address of Central Control INSTALLATION PLACES Installer Setting - Checking Address of Central Control THE INDOOR UNIT... -
Page 6: Installation Places
INSTALLATION PLACES INSTALLATION PLACES Cassette type - There should not be any heat source or steam near the unit. - There should not be any obstacles to prevent the air circulation. - A place where air circulation in the room will be good. - A place where drainage can be easily obtained. -
Page 7: The Indoor Unit Installation
THE INDOOR UNIT INSTALLATION THE INDOOR UNIT INSTALLATION Cassette type CAUTION • This air-conditioner uses a drain pump. • Install the unit horizontally using a level Ceiling gauge. • During the installation, care should be Level gauge taken not to damage electric wires. •... - Page 8 THE INDOOR UNIT INSTALLATION NOTE • Avoid the following installation location. 1. Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated. These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function. In these cases, take the following actions;...
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Page 9: Indoor Unit Drain Piping
THE INDOOR UNIT INSTALLATION Indoor Unit Drain Piping Drain test - Drain piping must have down-slope (1/50 to The air conditioner uses a drain pump to drain 1/100): be sure not to provide up-and-down water. slope to prevent reversal flow. Use the following procedure to test the drain - During drain piping connection, be careful pump operation:... -
Page 10: Heat Insulation
THE INDOOR UNIT INSTALLATION Heat insulation Wiring Connection - Use the heat insulation material for the - Open the control box cover and connect the refrigerant piping which has an excellent Remote controller cord and Indoor power heat-resistance (over 120°C). wires. -
Page 11: Precautions When Laying Power Wiring
INSTALLATION Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block. Attach insulation sleeve Round crimp-style terminal Electricwire When none are available, follow the instruc- tions below. - Do not connect wiring of different thickness- es to the power terminal block. -
Page 12: Installation To Decorative Panel (Accessory)
INSTALLATION TO DECORATIVE PANEL (ACCESSORY) INSTALLATION TO DECORATIVE PANEL (ACCESSORY) Remove the packing and take out air inlet Insert two screws on diagonal corners of grille from front panel. panel. Do not tighten the bolts completely. (The fixing screws are included in the indoor unit box.) Check the alignment of panel with the ceil- ing. - Page 13 INSTALLATION TO DECORATIVE PANEL (ACCESSORY) Open two screws of control panel cover. Install the air inlet grille and filter on the panel. CAUTION • Install certainly the decorative panel. • Cool air leakage causes sweating. ⇨ Water drops fall. Screw Good example Connect one display connector and two vane control connectors of front panel to...
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Page 14: Test Running
TEST RUNNING TEST RUNNING Precautions in test running M4..118N.cm{12kgf.cm} M5..196N.cm{20kgf.cm} - The initial power supply must provide at least M6..245N.cm{25kgf.cm} 90% of the rated voltage. M8..588N.cm{60kgf.cm} Otherwise, the air conditioner should not be operated. CAUTION Connection of power supply • For test run, carry out the cooling Connect the power supply cord to the inde- operation firstly even during heating pendent power supply. -
Page 15: Hand Over
TEST RUNNING Hand over CAUTION Teach the customer the operation and mainte- After the confirmation of the above condi- nance procedures, using the operation manual tions, prepare the wiring as follows: (air filter cleaning, temperature control, etc.). • Never fail to have an individual power specialized for the air conditioner. -
Page 16: Installation Instructions
INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS Installer Setting -How to enter installer setting mode CAUTION Installer setting mode is to set the detail function of the remote controller. If the installer setting mode is not set correctly, it can cause problems to the product, user injury or property damage. -
Page 17: Installer Setting - Installer Setting Code Table
INSTALLATION INSTRUCTIONS Installer Setting - Installer Setting Code Table Function Function Code Setting Value Remote Controller LCD 0 : Set to Master Mode Override 1 : Set to Slave 1 : Standard 2 : Low Ceiling Height Selection 3 : High 4 : Super High 0 : Set to Master Group Control... -
Page 18: Installer Setting - Setting Address Of Central Control
INSTALLATION INSTRUCTIONS Installer Setting - Setting Address of Central Control . With the MODE button pressed, press the RESET button. . By using the temperature setting button, set the indoor unit address. • Setting range : 00 ~ FF . After setting the address, press the ON/OFF button toward the indoor unit 1 time.