LG 1 Way Cassette ZTUQ12GULA1 User manual

OWNER'S MANUAL
AIR CONDITIONER
Before beginning installation, read these instructions
carefully. This will simplify installation and ensure that the
product is installed correctly and safely. Leave these
instructions near the product after installation for future
reference.
ENGLISH
Cassette 1 way
MFL71974402
Rev.00_070523
www.lg.com
Copyright © 2023 LG Electronics Inc. All Rights Reserved.

TABLE OF CONTENTS
This manual may contain images or
content that may be different from the
model you purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE...........................................................3
WARNING............................................................................................................4
CAUTION .............................................................................................................6
INSTALLATION
Location Selection..............................................................................................9
Indoor Unit Installation...................................................................................14
Wiring Connection ...........................................................................................21
Drain Piping ......................................................................................................24
AFTER INSTALLATION
Installation Instructions ..................................................................................28
Leakage Test and Evacuation .........................................................................31
Test Run.............................................................................................................32
Self-Diagnosis Function...................................................................................34

3
SAFETY INSTRUCTIONS
ENGLISH
SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
The following safety guidelines are intended to prevent unforeseen
risks or damage from unsafe or incorrect operation of the appliance.
The guidelines are separated into 'WARNING' and 'CAUTION' as
described below.
Safety Messages
This symbol is displayed to indicate matters and operations
that can cause risk.
Read the text with this symbol carefully and follow the
instructions in order to avoid risk.
WARNING
This indicates that the failure to follow the instructions can
cause serious injuries or death.
CAUTION
This indicates that the failure to follow the instructions can
cause minor injury or damage to the appliance.

4
SAFETY INSTRUCTIONS
Notes for Flammable Refrigerant
The following symbols are displayed on units.
WARNING
WARNING
• To reduce the risk of explosion, fire, death, electric shock, injury or
scalding to persons when installing this product, follow basic
precautions, including the following:
Technical Safety
• Installation or repairs made by unqualified persons can result in
hazards to you and others.
• The information contained in the manual is intended for use by a
qualified service technician familiar with safety procedures and
equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in the manual can
result in equipment malfunction, property damage, personal injury
and/or death.
• Compliance with national gas regulations shall be observed.
• Ducts connected to an appliance shall not contain an ignition source.
(For R32)
This symbol indicates that this appliance uses a flammable
refrigerant. If the refrigerant is leaked and exposed to an
external ignition source, there is a risk of fire.
This symbol indicates that the Owner's Manual should be read
carefully.
This symbol indicates that service personnel should be handling
this equipment with reference to the Installation Manual.
This symbol indicates that information is available in the Owner's
Manual or Installation Manual.

5
SAFETY INSTRUCTIONS
ENGLISH
Installation
• Always perform grounding.
• Don't use a power cord, a plug or a loose socket which is damaged.
• For installation of the product, always contact the service center or a
professional installation agency.
• Securely attach the electrical part cover of the indoor unit and the
service panel of the outdoor unit are not attached securely, it could
result in a fire or electric shock due to dust, water, etc.
• Always install an air leakage breaker and a dedicated switching
board.
• Do not keep or use flammable gases or combustibles near the air
conditioner.
• Ensure that an installation frame of the outdoor unit is not damaged
due to use for a long time.
• Do not disassemble or repair the product randomly.
• Do not install the product at a place that there is concern of falling
down.
• Use caution when unpacking and installing.
• Do not turn on the breaker or power under condition that front panel,
cabinet, top cover, control box cover are removed or opened.
• The appliance shall be stored in a room without continuously
operating open flames (for example an operating gas appliance) and
ignition sources (for example an operating electric heater).
Operation
• Do not share the outlet with other appliances.
• Do not use the damaged power cord.
• Do not modify or extend the power cord randomly.
• Take care so that the power cord may not be pulled during operation.
• Unplug the unit if strange sounds, smell or smoke comes from it.
• Keep the flames away.

6
SAFETY INSTRUCTIONS
• Take the power plug out if necessary, holding the head of the plug
and do not touch it with wet hands.
• Do not use the power cord near the heating tools.
• Do not open the suction inlet of the indoor/outdoor unit during
operation.
• Do not allow water to run into electrical parts.
• Hold the plug by the head when taking it out.
• Never touch the metal parts of the unit when removing the filter.
• Do not step on the indoor/outdoor unit and do not put anything on it.
• Do not place a heavy object on the power cord.
• When the product is submerged into water, always contact the
service center.
• Take care so that children may not step on the outdoor unit.
CAUTION
CAUTION
• To reduce the risk of minor injury to persons, malfunction, or damage
to the product or property when installing this product, follow basic
precautions, including the following:
Installation
• Install the drain hose to ensure that drain can be securely done.
• Install the product so that the noise or hot wind from the outdoor unit
may not cause any damage to the neighbors.
• Do not install the product where the noise or hot air from the outdoor
unit could cause damage the neighbors.
• Always inspect gas leakage after the installation and repair of
product.
• Keep level parallel in installing the product.
• Means for disconnection must be incorporated in the fixed in
accordance with the wiring rules.

7
SAFETY INSTRUCTIONS
ENGLISH
• Do not install the unit in potentially explosive atmospheres.
Operation
• Avoid excessive cooling and perform ventilation sometimes.
• Use a soft cloth to clean. Do not use wax, thinner, or a strong
detergent.
- The appearance of the air conditioner may deteriorate change
color, or develop surface flaws.
• Do not use an appliance for special purposes such as preserving
animals vegetables, precision, machine, or art articles.
• Do not place obstacles around the flow inlet or outlet.
• Do not use the product for special purposes, such as preserving
foods, works of art, etc. It is a consumer air conditioner, not a
precision refrigeration system. There is risk of damage or loss or
property.

8
INSTALLATION
INSTALLATION
Location Selection
Select the Best Location
• There should not be any heat source or steam
near the unit.
• There should not be any obstacles to the air
circulation.
• A place where air circulation in the room will be
good.
• A place where drainage can be easily obtained.
• A place where noise prevention is taken into
consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the
wall, ceiling, or other obstacles.
• The indoor unit must keep the maintenance
space.
(Unit: mm)
a Ceiling
b Ceiling board
c Floor
• Please use an annexed sheet or the corrugated
cardboard on the bottom of packing as
installation sheet.
- Annexed sheet
a Packing corrugated cardboard on the
bottom
a Hanging bolt location
b Packing corrugated cardboard on the
bottom
• When using the bottom sheet, please use it after
separating the installation sheet from packing of
the product floor by using a knife etc as a picture
below.
Chassis H
TU/TT 3300

9
INSTALLATION
ENGLISH
Installation Guide at the Seaside
CAUTION
• Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are
produced.
• Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result
corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause
product malfunction or inefficient performance.
CAUTION
• If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind. Otherwise
it needs additional anti corrosion treatment on the heat exchanger.
Selecting the location (Outdoor unit)
If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided.
Install the outdoor unit on the opposite side of the sea wind direction.
a Sea wind
In case of installing the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind.
a Sea wind
b Windbreak

10
INSTALLATION
• It should be strong enough like concrete to prevent the sea wind from the sea.
• The height and width should be more than 150 % of the outdoor unit.
• It should be keep more than 70 cm of space between outdoor unit and the windbreak for easy air flow.
Place with fluent water draining
• Install at a place with fluent water draining to prevent damage from localized heavy rain and avoid
frequent flooded area.
NOTE
• If you can’t meet above guide line in the seaside installation, please contact LG electronics for the
additional anticorrosion treatment.
• Periodic (more than once/year) cleaning of the dust or salt particles stuck on the heat exchanger by
using water.