LG AS55GD Series User manual

Model Name: AS55GD Series
MFL69726834
Rev.00_091917
Read this owner’s manual thoroughly before operating the appliance and
keep it handy for reference at all times.
www.lg.com
Copyright © 2017 LG Electronics. All Rights Reserved.
OWNER'S MANUAL
AIR PURIFIER

Table of Contents This manual is produced for a group of
products and may contain images or content
di󰀨erent from the model you purchased.
This manual is subject to revision by the
manufacturer.
Safety Instructions........................ 04
Unpacking....................................... 10
Parts...................................................... 10
Removing Packing Materials.................11
Installation ...................................... 13
Transporting or Moving the Product..... 13
Installing the Product ............................ 13
Operation ........................................ 14
Product Overview ................................. 14
Getting Started...................................... 19
Adjusting the Purifier Fan Speed.......... 19
Checking the Air Quality ....................... 20
Using the Air Ionizer ............................. 23
Setting the Sleep Timer ........................ 23
Locking the Control Panel Buttons....... 24
Smart Functions............................ 25
Using the Smart ThinQ Application ...... 25
Diagnosis Using Sound ........................ 26
Maintenance................................... 28
Cleaning the Exterior ........................... 29
Cleaning the Filter ................................ 29
Replacing the Filter............................... 30
Cleaning the Dust Sensor .................... 30
Storage ................................................ 31
Before Calling for Service............ 32
Product Specifications................. 36

04
Safety Instructions
READ THESE INSTRUCTIONS CAREFULLY
This guide contains many important safety messages. Always read and obey all safety messages.
This is the safety alert symbol. It alerts you to safety messages that inform you of hazards
that can kill or hurt you or others, or cause damage to the product.
All safety messages will be preceded by the safety alert symbol and the hazard signal word
WARNING or CAUTION. These words mean:
WARNING -
You can be killed or seriously injured if you do not follow these instructions.
CAUTION - Indicates an imminently hazardous situation which, if not avoided, may
result in minor or moderate injury or product damage.
This equipment is home (class B) EMI suitable equipment, which is mainly for home use, and it can
be used in all regions.
Warning
To reduce the risk of re, electric shock or personal injury when
using this product, follow basic safety precautions including the
following:
CHILDREN IN THE HOUSEHOLD
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised
to ensure that they do not play with the appliance.
INSTALLATION
•Install the product near an easily accessible electrical outlet.
•Do not install the product on an uneven or inclined surface.
•Do not install the product in a damp area and keep away from
splashing rain or water.

05
•Do not install the product in an area exposed to direct sunlight or
near heat-generating equipment.
•Do not install the product in a place where combustible gas may
leak or industrial oil or metallic particulates are present.
POWER
•This product is for AC 220–240 V. Always check the supply
voltage before using it.
•Do not plug this product into a multi-electrical extension socket
with no power cord.
•Be careful not to let the power plug pressed by the back of the
product.
•Remove the power plug when you clean the product or replace
the lter.
•Do not touch the power plug with wet hands.
•Insert the plug into the outlet tightly after removing the moisture
and dust on it completely.
•When unplugging the power cord, always pull it by the plug.
•Unplug the product during thunder or lightning or when not in
use for a long time.
•Do not bend the power cable excessively or place a heavy
object on top of it.
•Do not extend the length of the power cable or alter it.
•Do not use several devices on a multi-socket extension outlet.
•The appliance shall be disconnected from its power source
during service and when replacing parts.
•Take care to ensure that power cable could not be pulled out or
damaged during operation. There is risk of re or electric shock.

06
•If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualied person using
only genuine replacement parts in order to avoid a hazard.
USE
•If the product is immersed in water, stop using it and contact the
LG Electronics service center.
•If there is a gas leakage (isobutane, propane, LNG, etc.), do
not touch the product or power plug and ventilate the area
immediately.
•Do not clean the product with brushes, cloths or sponges with
rough surfaces or which are made of metallic material.
•If you detect any abnormal noise, odor or smoke, unplug the
product immediately and contact an LG Electronics service
center.
•Only an authorized repair person from LG Electronics service
center should disassemble, repair, or modify the product.
•Do not use or store re, combustibles (ether, benzene, alcohol,
drugs, propane, butane, combustible spray, insecticide, air
freshener, cosmetics etc.) or ammable materials (candles,
lamps etc.) near the product.
•Do not place the power cord under rugs, carpeting or mats.
•Do not allow animals or pets to chew on the power cord.
•Do not allow children to climb on or play with the product.
•Do not move the product when it is in operation.
•Do not place co󰀨ee, ower vase or drinks on top of the product.
•Do not insert hands or metal objects into the air inlet or outlet.

07
•Do not impact the product.
•Be careful not to allow any part of your body to be pinched when
you detach and re-attach parts of the product.
•Unplug the product when not in use for a long time.
•Do not install and use broken parts.
•Do not clean the product when it is plugged in.
•Do not put ammables into the product.
•Do not operate the product while its cover is open.
DISPOSAL
•Dispose of the packing materials (vinyl, styrofoam etc.) to keep
them out of reach of children.

08
Caution
To reduce the risk of re, electric shock, or personal injury when
using the product, follow basic safety precautions, including the
following:
INSTALLATION
•Do not tilt the product to pull or push it while transporting.
•Do not install the product in transportation equipment (vehicle/
vessel etc.).
•Do not place the product near a TV or a stereo equipment.
•Do not place the product under bright light.
•The appliance shall be installed in accordance with national
wiring regulations.
USAGE
•Do not use the product for removal of toxic gas such as carbon
monoxide.
•Do not use the product for ventilation purposes.
•Do not use the product for a long time in a region with unstable
voltage.
•Do not place obstacles around the air inlet or outlet.
•For safe use of the product, children or others with reduced
mental capabilities need to be closely monitored by a person
who is responsible for their safety.
•Do not place the product near curtains.
•Do not use the product for special purposes such as preserving
plants, precision instrument, artworks etc.

09
•Do not climb or place objects on top of the product.
•Do not operate the product with wet hands.
•Do not let the moisture from the humidier directly touch the
product.
•Do not use the product while it is not in upright position.
•Do not use the product near objects vulnerable to heat.
•Use the lter only for its intended purpose.
•Do not use detergents, cosmetics, chemicals, air fresheners, or
disinfectants in the product.
•Do not place magnetic or metal objects on top of the product.
•Do not clean with strong detergents of solvent types, but use
soft cloth.

10
Unpacking
Parts
Air Purier Owner’s Manual
•The appearance or components of the product may di󰀨er depending on the model.
•The shape of the power plug di󰀨ers depending on the country.
Owner’s
Manual

11
Removing Packing
Materials
Unpack the product and remove any packing
tape or protective vinyl before using the
product.
1Pull out the product from the
packaging and remove the xing tape
attached on the product.
2Grab the top end of the back cover
and gently pull it.
•You will see "PM 1.0 & GAS
SENSOR SYSTEM" on the back
cover of the product.
3Remove the cover from the product.
4Remove the support located at the
lter inlet.
Support
5Remove the lter and its protective
vinyl.
6 Install the lter in the product.
•Make sure that the handle faces
upward.
Handle

12
7Insert the xing parts at the bottom of
the cover into the holes at the bottom
of the product before you close the
cover.
Caution
•Failure to remove the support may a󰀨ect
the performance of the product. Please be
sure to remove it before use.
•Make sure that you remove the lter's
protective vinyl prior to use otherwise it
may result in product malfunction.
•Pay attention to the direction of the lter
when you install the lter otherwise it may
cause malfunction or failure of the product.

13
Installation
Transporting or Moving the
Product
Caution
Transport the product in a well-secured
and upright position. Impacts may cause
product damage.
Hold the bottom of the product with both
hands to move the product safely.
•Dropping the product may cause
personal injury or product malfunction.
•Do not hold the outer cover when you
carry the product. The cover may open
accidentally, causing the product to
drop.
When moving or storing the product, wrap
the power cord around the base of the
product to prevent personal injury, damage
to the cord or damage to oors.
Installing the Product
Caution
Install the product on a strong level
surface. Installing the product on a weak
or tilted surface may cause noise and
vibration or tipping, resulting in injury.
Allow a 1 m clearance between the product
and surrounding surfaces or objects. The
air inlet needs space to function properly.
1 m
Install the product where you can easily
remove the power plug.
Otherwise, electric shock or re may be
caused.
The performance of the product may di󰀨er
depending on the operating environment
(such as temperature and humidity).
•40–70 % of humidity is recommended
for optimal performance.
%

14
Operation
Product Overview
Front View
•The appearance or components of the product may di󰀨er depending on the model.
Air Outlet
It discharges puried air through the
lter.
Light Lamp
It displays the overall air quality using
a colored light.
Air Inlet (Front and Rear Covers)
•Air goes into the purier through
the inlet. You may remove the front
or rear cover separately.
Status Panel
Use it to check the settings of the
product and the air quality.
Control Panel
Use it to set the product functions.
Air Ionizer
•It generates negative ions and
removes harmful bacteria in the air.
•It is built in the lower part of the air
purier.

15
Back View
Smart Diagnosis Part
In the event of a malfunction or failure,
you can use the Smart Diagnosis
option to check the product condition.
(See Smart Functions.)
PM 1.0 (super ultra-ne dust)
sensor
It detects the concentration of dust.
Smell (Gas) Sensor
It detects a smell (gas).
Filter
It removes allergic materials, yellow
dust/ultra-ne dust, possible sources
of sick house syndrome, smog and
other odor.

16
Total Harmful Gas Care Filter
It removes harmful smells (gas) that
are generated in everyday life such
as bathroom smell, cigarette smoke
(smell) and food smell.
Total Allergen Collection Care Filter
It removes super ultra-ne dust,
yellow dust and cigarette smoke
particles from the air.
Ultra-ne Filter
It is attached on the exterior of the
Total Allergen Collection Care Filter,
primarily removing large particles
oating in the air, including pet hair.
Filter Handle
Use it to separate the lter from the
product.
Filter System
Caution
•The Total Harmful Gas Care Filter and
Total Allergen Collection Care Filter are
assembled together. Do not try to detach
them from each other.
•Do not throw the lter or use it for other purposes.
Note
•Keep the windows or doors closed while
using the product. However, if you operate
the product for a long time in a closed space,
carbon dioxide concentration may rise. So
be sure to ventilate the indoor air regularly.
•Carbon monoxide (CO) is a harmful gas
that is mainly introduced from outside and
cannot be removed with a lter.
•The deodorization function of the air
purier operates by trapping the smell (gas)
in the lter. If you use the product for a
long time in a room with excessive smell,
the performance of the lter may drop
signicantly. The Total Harmful Gas Care
Filter may sometimes become the source
of excessive smell if used for a long time
in a room with excessive smell.
•If excessive smell is present in the room,
rst ventilate the indoor air to remove the
smell. Then use the air purier to remove
the remaining smell.

17
Control Panel
Start/Stop Button
You can start or stop the operation.
Speed Button
It allows you to adjust the wind
strength of the product.
•Press and hold the button for more
than 3 seconds to activate the Wi-
Fi registration mode.
•Turning o󰀨 Wi-Fi
Press and hold the Start/Stop
button and the Speed button at the
same time for more than 3 seconds
to turn o󰀨 Wi-Fi.
After nishing the product
registration and while Wi-Fi is o󰀨,
press and hold the Speed button
for more than 3 seconds just once
to turn on Wi-Fi and to control the
product using the registered smart
phone.
Indicator Button
You can check the concentration of
the airborne dust by its particle size.
Sleep Timer Button
Use it to schedule the time to turn o󰀨
the product.
•Press and hold it for 3 seconds or
more to turn on or o󰀨 the ionizer.
(See Using the Air Ionizer.)
Light Button
Use it to turn the light on or o󰀨.
•Press and hold it for 3 seconds or
more to lock or unlock the Control
Panel buttons. (See Locking the
Control Panel Buttons.)

18
Icons
Icon Description
It turns on when it is time to replace
the lter.
It turns on when the Wi-Fi function
is activated.
It turns on when the sleep timer
function is activated.
It turns on when the 'On/O󰀨
Reservation' is set in the LG Smart
ThinQ application.
It turns on when the control panel is
locked.
It turns on when the ionizer turns
On.
Display of air conditions
①Overall cleanliness (colour)
②Dust particle size and dust
concentration (colour)
③Dust concentration or sleep timer
time
④Smell concentration (colour)
Displays fan speed
Status Display Panel

19
Getting Started
Press the Start/Stop button to start the
operation.
Note
•If you stop and resume the operation, it
starts cleaning with the mode you selected
last time. Even if power is lost due to a
blackout, the product remembers the mode
you used last time.
•Once the operation starts, the sensor
stabilizes (for approx. 30 seconds) before
the dust concentration is displayed.
During the sensor stabilization period, you
will see (ready) on the status panel.
You can specify the sensor stabilization
time in the 'Air Quality Sensor Operation
Time' option in the LG Smart ThinQ
application.
–'Always On': The sensor stabilization
turns on only once at the beginning.
–'Only During Operation': The sensor
stabilization turns on every time you
start/stop the operation.
Adjusting the Purier Fan
Speed
You can adjust the wind amount of the
purier.
Press the Speed button during the operation.
•Each time you press the button, the speed
changes in the following order: Auto →
Low → Middle → High → Turbo.
Displaying Purier Speed
If you adjust the speed, it is displayed on the
status panel. It increases by 2 grids at a time.
[Example of Purier Speed 'Middle']
Note
•The speed is set to Auto when you rst
start the operation. Auto mode controls
the wind speed automatically according to
the contamination level of the indoor air.

20
Checking the Air Quality
You can check the cleanliness of the indoor air by looking at the Light lamp and the status panel.
Understanding the Overall Air Quality
The overall air quality is calculated based on the dust and smell (gas) concentrations
and is categorized into 4 levels including green, yellow, orange or red depending on the
contamination of the air.
Overall Air
Quality State
PM density (μg/m³) Odor Level
PM 10
(ne dust)
PM 2.5
(ultra ne dust)
PM 1.0
(super ultra ne dust) State Level
Red Poor 255 or more 56 or more 56 or more Very strong 4
Orange Unhealthy 155–254 36–55 36–55 Strong 3
Yellow Moderate 55–154 13–35 13–35 Normal 2
Green Good 54 or less 12 or less 12 or less Weak 1
•Overall air quality can be determined based on the Light lamp and the color (overall
air quality) on the status panel.
•The color of overall air quality is determined based on whichever is worse between the dust
concentration and smell (gas) concentration.
Checking the Air Quality Using
the Light Lamp
Four di󰀨erent colors are used to indicate
the overall air quality based on the dust
concentration and smell (gas) concentration.
Light Lamp
Note
The Light lamp turns on white for the sensor
stabilization period (30 seconds). The smell
(gas) sensor is stabilized 2 minutes after you
start the operation. During this period, the
smell (gas) concentration is not reected in
the overall air quality.
Turning on/o󰀨 the Light Lamp
You can press the Light button to turn it on/o󰀨.
Note
•When the sleep timer is set, the Light lamp
turns o󰀨.
•If you turn on the Light lamp after setting
the sleep timer, you will see the overall air
quality on the status panel as well as on
the Light lamp.