LG UB70, UT36H User guide

www.lg.com

OWNER’S MANUAL

AIR
CONDITIONER

Please read this manual carefully before operating
your set and retain it for future reference.

4-WAY CEILING CASSETTE, CEILING CONCEALED DUCT
Original instruction

[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA

P/NO : MFL67870326

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS

DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

TIPS FOR SAVING ENERGY

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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:

• Do not cool excessively indoors. This may be harmful for your health and may consume more elec­tricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner
is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the
air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

IMPORTANT SAFETY INSTRUCTIONS

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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.
This appliance is intended to be used by expert or trained users in
shops, in light industry and on farms, or for commercial use by lay per­sons.

WARNING

!

• Always ground the product. There is a risk of electric shock.

• Do not use a defective or underrated circuit breaker. Use the correctly
rated breaker and fuse. There is risk of fire or electric shock .

• Do not use a multi consent. Always use this appliance on a dedicated
cicuit and breaker.
Otherwise it can cause electric shock or fire.

• For electrical work, contact the dealer, seller, a qualified electrician, or
an Authorized Service Center. Do not disassemble or repair the prod­uct by yourself. There is risk of fire or electric shock.

• Always ground the product as per the wiring diagram. Do not connect
the ground wire to gas or water pipes lightening rod or telephone
ground wire. There is risk of fire or electric shock.

• Install the panel and the cover of control box securely. There is risk of
fire or electric shock due to dust , water etc.

• Use the correctly rated breaker or fuse. There is risk of fire or electric
shock.

• Do not modify 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

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• Do not install the product on a defective installation stand. Be sure

• Never install the outdoor unit on a moving base or a place from

• When the product is soaked (flooded or submerged) in water , contact

• Be sure to check the refrigerant to the used. Please read the label on

• Don't use a power cord, a plug or a loose socket which is damaged.

• Do not touch , operate, or repair the product with wet hands. Hold the

• Do not place a heater or other heating appliances near the power

• Do not allow water to run into electric parts. Install the unit away from

• Do not store or use or even allow flammable gas or combustibles

• Indoor/outdoor wiring connections must be secured tightly and the

• Safely dispose off the packing materials. Like screws, nails, batteries,

• Make sure to check that the power cable plug is not dirty, loose or

• In outdoor unit the step-up capacitor supplies high voltage electricity

IMPORTANT SAFETY INSTRUCTIONS

Authorized Service Center. There is risk of fire, electric shock, explo­sion, or injury.

that the installation area does not deteriorate with age. It may cause
product to fall.

where it can fall down.
The falling outdoor unit can cause damage or injury or even death of
a person.

an Authorized Service Center for repair before using it again. There is
risk of fire or eletric shock.

the product. Incorrect refrigerant used can prevent the normal opera­tion of the unit.

Otherwise it may cause a fire or electrical shock.

plug by hand when taking out. There is risk of electric shock or fire.

cable. There is risk of fire and electric shock.

water sources. There is risk of fire, failure of the product, or electric
shock.

near the product.
There is risk of fire.

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.

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.

broken and then only insert the plug completely. Dirty, loose or bro­ken power plug can cause electric shock or fire.

IMPORTANT SAFETY INSTRUCTIONS

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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.

• 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.

• Do not turn on the breaker or power under condition that front panel,
cabinet, top cover, control box cover are removed or opened. Other-

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• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test

!

• Two or more people must lift and transport the product. Avoid per-

• Do not install the product where it will be exposed to sea wind (salt

• Install the drain hose to ensure that the condensed water is drained

• Keep level even when installing the product. To avoid vibration or

• Do not install the product where the noise or hot air from the outdoor

• Always check for gas (refrigerant) leakage after installation or repair

• Do not use the product for special purposes, such as preserving

• Do not block the inlet or outlet of air flow. It may cause product failure.

• Use a soft cloth to clean. Do not use harsh detergents, solvents or

• Do not touch the metal parts of the product when removing the air fil-

• Do not step on or put anyting on the product. (outdoor units) There is

• Always insert the filter securely after cleaning. Clean the filter every

• Do not insert hands or other objects through the air inlet or outlet

• Be cautious when unpacking and installing the product. Sharp edges

IMPORTANT SAFETY INSTRUCTIONS

wise, it may cause fire, electric shock, explosion or death.

or air purge. Do not compress air or Oxygen and Do not use Flamma­ble gases. Otherwise, it may cause fire or explosion. There is the risk
of death, injury, fire or explosion.

CAUTION

sonal injury.

spray) directly. It may cause corrosion on the product.

away properly. A bad connection may cause water leakage.

noise.

unit could damage or disturb the neighborhoods. It may cause a
problem for your neighbors and hence dispute.

of product. Low refrigerant levels may cause failure of product.

foods, works of art, etc. It is a consumer air conditioner, not a preci­sion refrigeration system. There is risk of damage or loss of property.

splashing water etc. There is risk of fire, electric shock, or damage to
the plastic parts of the product.

ter. There is risk of personal injury.

risk of personal injury and failure of product.

two weeks or more often if necessary. A dirty filter reduces the effi­ciency.

while the product is operating. There are sharp and moving parts that
could cause personal injury.

could cause injury.

IMPORTANT SAFETY INSTRUCTIONS

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• If the refrigerant gas leaks during the repair, do not touch the
leakaing refrigerant gas. The refrigernat gas can cause frostbite (cold
burn)

• Do not tilt the unit when removing or uninstalling it. The condensed
water inside can spill.

• Do not mix air or gas other than the specified refrigerant 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.

• Replace the all batteries in the remote control with new ones of the
same type. Do not mix old and new batteries or different types of bat­teries. There is risk of fire or product failure.

• Do not recharge or disassemble the batteries. Do not dispose off bat­teries in a fire. They may burn or explode.

• If the liquid from the batteries gets onto your skin or clothes, wash it
well with clean water. Do not use the remote if the batteries have
leaked. The chemicals in batteries could cause burns or other health
hazards.

• If you eat the liquid from the batteries, brush your teeth and see doc­tor.
Do not use the remote if the batteries have leaked. The chemicals in
batteries could cause burns or other health hazard.

• Do not let the air conditioner run for a long time when the humidity is
very high and a door or a window is left open. Moisture may con­dense and wet or damage furniture.

• Do not expose your skin or kids or plants to the cool or hot air draft.
This could harm to your health.

• Do not drink the water drained from the product. It is not sanitary and
could cause serious health issues.

• Use a firm stool or ladder when cleaning, maintaining or repairing the
product at an height. Be careful and avoid personal injury.

• The air conditioner is not intended for use by young children or in­valids without supervision.

• Young children should be supervised to ensure that they do not play
with the air conditioner.

TABLE OF CONTENTS

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TABLE OF CONTENTS

2 TIPS FOR SAVING EN-

ERGY

3 IMPORTANT SAFETY IN-

STRUCTIONS

9 BEFORE USE

9

Preparing for operation

9

Usage

9

Cleaning and maintenance

9

Service

10 PRODUCT INTRODUC-

TION

10

Name and function of parts (4-WAY CEIL­ING CASSETTE)

10

Name and function of parts (CELING
CONCEALED DUCT)

11

What to do before operation

11

Operation Indication Lamps

12

Wired Remote Controller

13

Wireless Remote Controller (Accessory)

14 OPERATING INSTRUC-

TIONS

14

Standard Operation - Standard Cooling

15

Standard Operation - Power Cooling

15

Standard Operation - Heating Mode

16

Standard Operation - Dehumidification
Mode

16

Auto Changeover Mode

17

Standard Operation - Fan Mode

18

Standard Operation - Auto Operation
Mode

19

Standard Operation - Airflow Setting

20

Standard Operation - Temperature Set­ting/Room Temperature Check

21

Sub function - Plasma Purification(Acces­sory)

22

Function setting - Child Lock

23

Function Setting - Change Temp

24

Function setting - Elevation Grill(Accessory)

25

Function setting - Filter Sign Clear

26

Function setting - Vane Angle Control

27

Function setting - Changing Current Time

29

Programming - Simple Reservation

30

Programming : Weekly Reservation

32

Programming - Sleep Reservation

33

Programming - ON Reservation

35

Programming - OFF Reservation

37

Programming : Holiday Reservation

38 MAINTENANCE AND

SERVICE

38

Indoor Unit

39

Purifying filter(Optional)

40

Operation Tips!

40

When the air conditioner is not going....

41

Troubleshooting Tips! Save time and
money!

41

Call the service immediately in the follow­ing situations

BEFORE USE

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BEFORE USE

Preparing for operation

• Contact an installation specialist for installation.

• Use a dedicated circuit.

Usage

• Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do
not expose occupants, pets, or plants to direct airflow for extended periods of time.

• Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or
other heating devices.

• Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices,
food, pets, plants, and art objects). Such usage could damage the items.

Cleaning and maintenance

• Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling
sharp metal edges.

• Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation,
leading to possible electric shock.

• When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a
very high speed during operation. There is a possibility of injury if the unit’s power is accidentally trig­gered on while cleaning inner parts of the unit.

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Service

For repair and maintenance, contact your authorized service dealer.

PRODUCT INTRODUCTION

3

7

2

8

6

1

5

4

4

4

2

8

4

5

Remote
Controller

3

Air intake
vents

1

Air outlet
vents

6

7

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PRODUCT INTRODUCTION

Name and function of parts (4-WAY CEILING CASSETTE)

1: Indoor unit
2: Outdoor unit
3: Remote controller
4: Inlet air
5: Discharge air
6: Refrigerant piping, connection electric wire
7: Drain pipe
8: Ground wire

Wire to ground outdoor unit to prevent electrical
shocks.

Name and function of parts (CELING CONCEALED DUCT)

1: Indoor unit
2: Outdoor unit
3: Remote controller
4: Inlet air
5: Discharge air
6: Refrigerant piping, connection electric wire
7: Drain pipe
8: Ground wire

wire to ground outdoor unit to prevent electrical
shocks.

What to do before operation

4

A

B

1 1

12

: Lights up during the system operation.

Filter Sign : Lights up after 2400 hours from the time of first operating unit.
Timer : Lights up during Timer operation.

Defrost Mode : Lights up during Defrost Mode or Hot Start operation.(Heat pump model only)

On/Off

Forced

•

: To operate the unit when the remote control can't be used
for any reason.

Operation Indication Lamps

PRODUCT INTRODUCTION

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 si-

multaneous operation)

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PRODUCT INTRODUCTION

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Wired Remote Controller

1

8
7
9

10
11

12
13

15

Please attach the inform label inside of the door.
Please choose proper language depend on your
country.

1 OPERATION INDICATION SCREEN
2 SET TEMPERATURE Button
3 FAN SPEED Button
4 ON/OFF Button
5 OPRATION MODE SELECTION Button
6 WIRELESS REMOTE CONTROLLER RE-

14
2
4

5
6

3

CEIVER

• Some products don't receive the wireless
signals.

7 AIR FLOW Button
8 SUBFUNCTION Button
9 FUNCTION SETTING Button
10 VENTILATION Button
11 RESERVATION
12 UP,DOWN,LEFT,RIGHT Button

• To check the indoor temperature, press

button.

13 ROOM TEMPERATURE Button
14 SETTING/CANCEL Button
15 EXIT Button

* Some functions may not be operated and dis-

played depending on the product type.

NOTE

!

• Display temperature can be different from
actual room temperature if the remote
controller is installed at the place where
sun-rays are falling directly or the place
nearby heat source.

• The actual product can be different from
above contents depending upon model
type.

• When using simultaneous operation sys­tem, whenever press remote controller
button, system will approximately operate
after 1~2 minutes.

PRODUCT INTRODUCTION

Wireless Remote Controller (Accessory)

This air-conditioner is equipped with wired remote controller basically. But if you want to be available
with wireless remote controller, you pay for it.

CAUTION

!

CAUTION of handling the Remote Con­troller

• Aim at the signal receiver on the wired re­mote controller so as to operate.

• The remote control signal can be received
at a distance of up to about 7m.

• Be sure that there are no obstructions be­tween the remote controller and the signal
receptor.

• Do not drop or throw the remote controller.

• Do not place the remote controller in a lo­cation exposed to direct sunlight, or near
the heating unit, or any other heat source.

˚C / ˚F (5 s)

(3 s)

• Block a strong light over the signal receptor
with a curtain or etc. so as to prevent the
abnormal operation. (ex:electronic quick
start, ELBA, inverter type fluorescent lamp)

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PQWRHQ0FDB

NOTE

!

• The wireless remote controller do not op­erate the vane angle control.(4Way Type)

• For more details refer to the Wireless Re­mote Control Accessory manual.

• The actual product can be different from
above contents depending upon model
type.

• The wireless remote controller does not
operate When using simultaneous opera­tion system.