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Safety Precautions   

4

Ceiling Cassette-Type Air Conditioner

Indoor/outdoor wiring connections must
be secured tightly and the cable should
be routed properly so that there is no
force pulling the cable from the
connection terminals.

• Improper or loose connections can cause

heat  generation or fire.

Safely dispose off the packing materials.
Like screws, nails, batteries, broken
things etc after installation or svc and
then tear away and thraw away the plastic
packaging bags.

• Children may play with them and cause

injury.

Make sure to check that the power cable
plug is not dirty, loose or broken  and
then only insert the plug completely.

• Dirty, loose or broken power plug can

cause electric shock or fire.

Do not use the product in a tightly closed
space for a long time. Perform ventilation
regularly.

• Oxygen deficiency could occur and hence

harm your health.

Do not open the front  grille of the product
during operation. (Do not touch the
electrostatic filter, if the unit is so equipped.) 

• There is risk of physical injury, electric shock,

or product failure.

If strange sounds, smell or smoke comes
from product.Immediately turn the breaker
off or disconnect the power supply cable.

• There is risk of electric shock or fire.

Ventilate the product room  from time to
time when operating it together with a
stove, or heating element etc.

• Oxygen deficiency can occur and hence harm

your health.

Turn the main power off and unplug the
unit when cleaning or repairing the
product. 

• There is risk of electric shock.

When the product is not to  be used for a
long time, disconnect the power supply
plug or turn off the breaker.

• There is risk of product damage or failure, or

unintended operation.

Take care to ensure that nobody
especially kids could step on or fall onto
the outdoor unit. 

• This could result in personal injury and

product damage. 

Take care to ensure that power cable
could not be pulled out or damaged
during operation.

• There is risk of fire or electric shock.

Do not place ANYTHING  on the power
cable.

• There is risk of fire or electric shock.

Do not plug or unplug the power supply plug to turn the unit
ON/OFF .

• There is risk of fire or electric shock.

When flammable gas leaks, turn off the gas and open a window
for ventilation before turn the product on. 

• Do not use the telephone or turn switches on or off. There is risk of

explosion or fire.

CAUTION

Two or more people must lift and
transport the product. 

• Avoid personal injury. 

Do not install the product where it will be
exposed to sea wind (salt spray) directly.

• It may cause corrosion on the product. 

Install the drain hose to ensure that the
condensed  water is drained away properly. 

• A bad connection may cause water leakage.

Keep level even when installing the
product.

• To avoid vibration or noise.

Do not install the product where the noise
or hot air from the outdoor unit could
damage or  disturb the neighborhoods.

• It may cause a problem for your neighbors

and hence dispute.

Always check for gas (refrigerant)
leakage after installation or repair of
product.

• Low refrigerant levels may cause failure of

product.

In outdoor unit the step-up capacitor
supplies high voltage electricity to the
electrical components. Be sure to
discharge the capacitor completely
before conducting the repair work.

• An charged capacitor can cause electrical

shock.

When installing the unit, use the
installation kit provided with the product.

• Otherwise the unit may fall and cause severe

injury.

Be sure to use only those  parts which
are  listed in the svc  parts list. Never
attempt to modify the equipment. 

• The use of inappropriate parts can cause an

electrical shock, excessive heat generation or
fire.

Summary of Contents for MB09AHL

Page 1: ...or future reference P NO MFL67163903 www lg com TYPE CEILING CONCEALED DUCT The equipment complies with requirements of the Technical Regulation in terms of restrictions for the use of certain dangerous substances in electrical and electronic equipment KZ O 02 0561 ENGLISH ITALIANO ESPAÑOL FRANCAIS DEUTSCH ...

Page 2: ... air conditioner When the power cord is to be replaced replacement work shall be performed by authorized personnel only using only genuine replacement parts Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only A Safety Precautions 3 B Product Introduction 6 Name and function of parts 6 What to do before operation 6 Wired Remot...

Page 3: ... or extend the power cable If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be replaced There is risk of fire or electric shock For installation removal or reinstall always contact the dealer or an Authorized Service Center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand Be sure that the in...

Page 4: ...ially kids could step on or fall onto the outdoor unit This could result in personal injury and product damage Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock Do not place ANYTHING on the power cable There is risk of fire or electric shock Do not plug or unplug the power supply plug to turn the unit ON OFF There is ri...

Page 5: ... used in the system If air enters the refrigerant system an excessively high pressure results causing equipment damage or injury If the refrigerant gas leaks during the installation ventilate the area immediately Otherwise it can be harmfull for your health Dismantling the unit treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards Replac...

Page 6: ...nit to prevent electrical shocks If your installation has a customized control system ask your LG dealer for the operation that corresponds to your system 1 Unit with remote controller 2 Unit without remote controller when used as simultaneous operation 6 7 2 8 4 5 Air intake vents 1 Air outlet vents 3 Multi system Pair system or simultaneous operation system What to do before operation Name and f...

Page 7: ...NOTE OPERATION INDICATION SCREEN SET TEMPERATURE BUTTON FAN SPEED BUTTON ON OFF BUTTON OPRATION MODE SELECTION BUTTON WIRELESS REMOTE CONTROLLER RECEIVER Some products don t receive the wireless signals AIR FLOW BUTTON SUBFUNCTION BUTTON FUNCTION SETTING BUTTON VENTILATION BUTTON RESERVATION UP DOWN LEFT RIGHT BUTTON To check the indoor temperature press button ROOM TEMPERATURE BUTTON SETTING CANC...

Page 8: ...curtain or etc so as to prevent the abnormal operation ex electronic quick start ELBA inverter type fluorescent lamp h The wireless remote controller do not operate the vane angle control 4Way Type h For more details refer to the Wireless Remote Control Accessory manual h The actual product can be different from above contents depending upon model type h The wireless remote controller does not ope...

Page 9: ...ng operation mode 2 Adjust the desired temperature by pressing buttons Press button to check the Room temperature When setting the desired temperature higher than room temperature only ventilation wind is blow out instead of cooling wind 3 h Setting Temp Range 18 C 30 C 64 F 86 F It cools the room by comfortable and clean wind Operating instructions ...

Page 10: ...at cooling exclusive model Press button to turn on the indoor 1 Press button to select Dehumidification mode The temperature setting can not be adjusted during operation this mode 2 Press the button to select airflow rate feeble weak medium strong automatic The initial wind powerfulness of humidity removal drive is weak 3 It removes humidity while air cooling weakly In rainy season or high humidit...

Page 11: ...ng ventilation compressor of AHU doesn t work 3 Standard Operation Fan Mode It blows the air as it is in the indoor not the cold wind Ventilation drive does not release cool wind but general fan Because it releases the wind that has no temperature difference from the room it functions to circulate the inside air The menu item of wind powerfulness might not be partially selected according to the pr...

Page 12: ...cture on the right for cooling and heating model 3 For the case of cooling exclusive as the picture on the right you can adjust the temperature from hot to cold from 2 to 2 based on 00 4 When cold When cool When appropriate When warm When hot Standard Operation Auto Operation Mode During operating Auto Operation mode We can use the FAN SPEED button We can change manually to other operation mode ...

Page 13: ...perature Please increase the desired temperature 1 Whenever press button the room temperature will be displayed within 5 seconds After 5 seconds it turns to display the desired temperature Because of location of remote controller the real room temperature and the this displayed value can be different 1 Temperature Setting Room Temperature Check For air cooling drive from 18 C to 30 C and for heati...

Page 14: ...e button at ventilation drive Sub function Plasma Purification Optional Repeat pressing button until icon flash The method to setup cleaning air 1 Operate or cancel Plasma Purification function by pressing button icon appears disappears on display part up to selection 2 After setting press button to exit 3 After setup it automatically gets out of setup mode if there is no button input for 25 secon...

Page 15: ...by using button setup icon blinks and child lock function is setup if pressing button at that time 2 When cancelling lock function if moving to cancel icon by pressing button and then pressing button child lock function is cancelled 3 Press button to exit After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the mani...

Page 16: ...repeatedly until the is flashing 1 When the is flashing press the to clear this display 2 When filter is covered by dust it will reduce cooling heating efficiency and accumulate more electric power Therefore do clean the filter whenever cleaning time is expired h Filter cleaning indication is automatically cancelled without the separate cancellation after certain period of time ...

Page 17: ...Time setup icon is indicated at that time and date blinks at current time indication area Ex Changing Current Time as Monday AM 10 20 1 Press key to adjust the current day 2 Press key to move to AM PM setting mode the AM PM segment will flash 3 Setting AM PM value by pressing button 4 Press button to move to Hour setting mode the Hour segment will flash 5 Setting Hour value by pressing button 6 ...

Page 18: ... segment will flash 7 Setting Minute value by pressing button 8 Press button to finish 9 In the process press button to release and exit from setting mode In case of exit with incomplete information it will return to the previous setting When exiting without pressing set button the manipulated value is not reflected 10 ...

Page 19: ...n time 2 Press button to finish setting 3 Press button to exit After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 4 You can set the reservation conveniently in the units of 1 hour from 1 hour to 7 hours h When simple reservation setup product automatically runs or stops after...

Page 20: ...can setup two reservations weekly reservation 1 and weekly reservation 2 for a day 3 Please move to date setup part by using button If date indication blinks please setup date You can setup date from Monday to Sunday 4 Please move to AM PM setup part of turning on by using button 5 Please move to hour setup part of turning on by using button It is the part to setup the time at which air conditione...

Page 21: ...p for the day that you set is finished 12 If you setup with the method identical with above by selecting the day that you d like to setup it operates weekly reservation If you setup both turning on reservation time and turning off reservation time identically it doesn t operate reservation drive 13 Weekly reservation explanation Turning on time Under bar the indication that there is weekly reserva...

Page 22: ...ows up at the lower part of LCD screen 5 If finishing sleep reservation setup air conditioner product operates sleep drive and stops after the time that is set 6 Sleep reservation is the function of air conditioner to run and stop after certain period of time at sleep mode before sleep When connected to a ventilation product and set the sleep reservation when it goes to the sleep mode after the se...

Page 23: ... mode segment flashing 2 Press button to adjust AM PM setting 3 Press button to Hour setting mode When the Hour icon flash please setting time The setting range is within 1 12 4 Press button to shift to Minute setting mode When the Minute icon flash please setting minute the setting range is within 00 59 5 Press button to finish setting 6 Automatically turned On at reserved time that you set ...

Page 24: ...p mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected If reservation is set turned on indication shows up at the lower part of LCD screen and air conditioner product runs at the time that is set If reservation is cancelled turned on indication disappears 7 ...

Page 25: ...ode segment flashing 2 Press button to adjust AM PM setting 3 Press button to shift to Hour setting mode When the Hour icon flash please setting time The setting range is within 1 12 4 Press button to shift to Minute setting mode When the Minute icon flash please setting minute the setting range is within 00 59 5 Press button to finish setting 6 Automatically turned Off at reserved time that you s...

Page 26: ... mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected If reservation is set turned off indication shows up at the lower part of LCD screen and air conditioner product runs at the time that is set If reservation is cancelled turned off indication disappears 7 ...

Page 27: ...lease appoint or cancel holiday by using or button For example when you setup Monday Friday to holiday Monday Friday letter disappears 4 Please press button if finishing holiday setup If it comes to appointed holiday air conditioner automatically stops Once you setup holiday appointment until before you cancel holiday setup air conditioner automatically stops within one hour even though you run ai...

Page 28: ...arts of the indoor unit It may cause an injury 2 Clean dirt from the air filter using a vacuum cleaner or washing with water n If dirt is conspicuous wash with a neutral detergent in lukewarm water n If hot water 50 C or more is used it may be deformed 3 After washing with water dry well in the shade n Do not expose the air filter to direct sunlight or heat from a fire when drying it 4 Install the...

Page 29: ...m and ventilate the room now and then When air conditioner is not going to be used for a long time 1 Operate the air conditioner at the following settings for 2 to 3 hours Type of operation Fan operation mode Refer to page 14 This will dry out the internal mechanisms 2 Turn off the breaker CAUTION Turn off the breaker when the air conditioner is not going to be used for a long time Dirt may collec...

Page 30: ...blown or has the circuit breaker been tripped Check that this is not a damp smell exuded by the walls carpet furniture or cloth items in the room Condensation occurs when the airflow from the air conditioner cools the warm room air This is the protector of the mechanism Wait about three minutes and operation will begin Is the air filter dirty See air filter cleaning instructions The room may have ...

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