www.lg.com
P/NO : MFL67870417
Please read this manual carefully before operating
your set and retain it for future reference.
VENTILATOR
Original instruction
OWNER’S MANUAL
AIR
CONDITIONER
[
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
For more information, Refer to the CD or LG Web site (www.lg.com).
ENGLISH ITALIANO
ESPAÑOL
FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
Ventilator Owner’s Manual
TABLE OF CONTENTS
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
n Staple your receipt to this page in the event you need
it to prove date of purchase or for warranty issues.
READ THIS MANUAL
Inside you will find many helpful hints on how to use
and maintain your ventilator properly. Just a little preventive care on your part can save you a great deal of
time and money over the life of your Ventilator.
You'll find many answers to common problems in the
chart of check item prior to notify a failure. If you review
our chart of
Check item prior to notify a failure, you may not
need to call for service at all.
PRECAUTION
• Contact the authorized service technician for
repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• The ventilator 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 ventilator.
• 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.
Safety Precautions.........................3
Prior to Operation ..........................8
Introduction ....................................9
Electrical Safety ...........................10
Characteristics .............................11
Operating Instructions.................12
Maintenance and Service ............14
Humidifier Maintenance...............18
Check Item prior to notify
a failure .........................................20
2 Ventilator
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
Meanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
Be sure not to do.
Be sure to follow the instruction.
Risk of electric shock
Special note
Safety Precautions
Owner's Manual 3
ENGLISH
Installation
Do not use a defective or underrated
circuit breaker. Use
this appliance on a
dedicated circuit.
• There is risk of fire or
electric shock.
For electrical work,
contact the dealer,
seller, a qualified electrician, or an Authorized Service Center.
• Do not disassemble or
repair the product.
There is risk of fire or
electric shock.
Always ground the
product.
• 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.
Always install a dedicated circuit and
breaker.
• Improper wiring or
installation may cause
fire or electric shock
Use the correctly
rated breaker or fuse.
• There is risk of fire or
electric shock.
WARNING
NOTICE
Safety Precautions
4 Ventilator
For installation,
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.
• It may cause injury,
accident, or damage to
the product.
Do not let the ventilator
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.
For re-installation of
the installed product,
always contact the
dealer or an Authorized Service Center.
• There is risk of fire,
electric shock, explosion or injury.
Do not open the
maintenance cover
of the main body
during operation.
• Otherwise, it may
cause electrical
shock.
Use the outdoor air
suction hole with the
net installed to
ensure that birds
could not come in.
• Remove estrange
things like the bird’s
nest. Otherwise, it
may cause scarcity of
indoor oxygen.
Do not modify or
extend the power
cable.
• There is risk of fire or
electric shock.
Do not install, remove,
or re-install the unit by
yourself (customer).
• There is risk of fire,
electric shock, explosion, or injury.
Be cautious when
unpacking and
installing the product.
• Sharp edges could
cause injury. Be especially careful of the
case edges and the fins
on the condenser and
evaporator.
Install the air intake where polluted air can not be directly sucked
in.
• It may cause various accidents,
including suffocation, due to the
suction of harmful gasses(CO, etc.)
Install the product a place that
can support its weight.
• Otherwise, it may cause accident
due to falling of the product.
Safety Precautions
Owner's Manual 5
ENGLISH
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 during
operation.
• There is risk of fire or
electric shock.
Operation
Do not store or use
flammable gas or
combustibles near
the product.
• There is risk of fire or
failure of product.
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
If strange sounds, or
small or smoke
comes from product.
Turn the breaker off
• There is risk of electric
shock or fire.
Stop operation and
close the window in
storm or hurricane. If
possible, remove the
product from the
window before the
hurricane arrives.
• There is risk of property
damage, failure of
product, or electric
shock.
When the product is
soaked (flooded or
submerged), contact
an Authorized Service Center.
• There is risk of fire or
electric shock.
Be cautious that
water could not
enter the product.
• There is risk of fire,
electric shock, or product damage.
Do not touch(operate) the product with
wet hands.
• There is risk of fire or
electrical shock.
Do not place a
heater or other appliances near the
power cable.
• There is risk of fire and
electric shock.
Do not allow water to
run into electric
parts.
• It may cause There is
risk of fire, failure of the
product, or electric
shock.
6 Ventilator
Safety Precautions
CAUTION
Use two or more
people to 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. Corrosion, particularly on the
condenser and evaporator fins, could cause
product malfunction or
inefficient operation.
Do not install the
ventilation unit alone
for controlling room
temperature.
• If this is needed, install
with another Indoor unit
(air conditioner).
Installation
Don’t touch a dedicated circuit or
breaker with wet hands.
• There is risk of electric shock.
Use a firm stool or ladder when
cleaning or maintaining the roduct.
• Be careful and avoid personal injury.
Turn the breaker off
when cleaning or
maintaining the
product.
• There is risk of electric
shock.
When the product is
not 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.
Avoid fire equipment
• There is risk of fire.
Owner's Manual 7
Safety Precautions
ENGLISH
Do not expose the
skin directly to cool
air for long periods
of time.
(Don't sit in the
draft.)
• This could harm to your
health.
Do not use the product for special purposes, such as preserving foods, works
of art, etc. It is a consumer ventilator, not
a precision refrigeration system.
• There is risk of damage
or loss of property.
Use a soft cloth to
clean. Do not use
harsh detergents,
solvents, etc.
• There is risk of fire,
electric shock, or damage to the plastic parts
of the product.
Operation
Do not step on or put anyting on
the product. (outdoor units)
• There is risk of personal injury and
failure of product.
Use a firm stool or ladder when
cleaning or maintaining the product.
• Be careful and avoid personal injury.
Prior to Operation
Prior to Operation
Contact an installation specialist for installation.
Use a dedicated circuit.
Do not use an extension cord.
If the cord/plug is damaged, replace it with only an authorized replacement part.
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 ventilator for non-specified special purposes (e.g. preserving precision
devices, food, pets, plants, and art objects). Such usage could damage the items.
This unit cannot control room temperature. If this is needed, do not install the ventilation
unit alone, but rather install another indoor unit.
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 ventilator. 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.
For repair and maintenance, contact your authorized service dealer.
Preparing for operation
Usage
Cleaning and maintenance
Service
8 Ventilator
Introduction
Introduction
4
7
8
5
6
9
10
12
11
13
14
1
3
2
1. Maintenance cover
2. Air Filter
Prevents clogging of the Total heat exchanger due to dust.
3. Total Heat Exchanger
Exchanges temperature and moisture
between supply air and exhaust air.
4. Blower for Exhaust Air
A blower for draining polluted air outside.
5. Electronic Parts Box (Control box)
6. Blower for Supply Air
A blower for induction outside air.
7. Bypass Damper
Converts the ventilation via Total heat
exchange to the normal ventilation.
8. Holder for Total Heat Exchanger
Used for installation guide of the Total heat
exchanger.
9. Humidifier Element
10. Direct expansion coil (DX Coil)
11. Gas pipe connection (Ø12.7)
12. Liquid pipe connection (Ø6.35)
13. Feed water connection port (Ø6.35)
14. Drain outlet (Ø25.4)
Owner's Manual 9
ENGLISH
Electrical Safety
Electrical Safety
WARNING: This appliance must be properly grounded.
To minimize the risk of electric shock, you must always plug into a grounded outlet.
WARNING: Do not cut or remove the grounding prong from the
power wire.
WARNING: Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover
screw is metal and not insulated, and the wall receptacle is grounded through the house wiring.
WARNING: If you have any doubt whether the ventilator is properly
grounded, have the wall receptacle and circuit checked by a qualified electrician.
10 Ventilator
Preferred method
Ensure proper ground
exists before use
Characteristics
Characteristics
Exhaust air
Outdoor air
Total Heat Exchanger
Return air
Supply air
DX Coil Humidifier Element
Damper
Exhaust air
Outdoor air
Total Heat Exchanger
Damper
Return air
Supply air
DX Coil Humidifier Element
Exhausts indoor air via the Total Heat Exchanger outdoor.
• The outdoor air heat exchanged is supplied to indoor. Operate the ventilator in the
Ventilation via Total heat exchanger in summer/winter when cool/heat operation is done.
Ventilation via Total Heat Exchanger
Exhausts the polluted indoor-air directly without via the Total Heat
Exchanger.
• Operate the ventilator in the Normal Ventilation in spring/autumn when the Total heat exchanger
is not required.
Normal Ventilation
CAUTION: In case of high outdoor pollution degree like yellow sand please pause the
ventilator.
Owner's Manual 11
ENGLISH
Operating Instructions (Accessory)
Operating Instructions (Accessory)
Name and Function of Remote Controller
OPERATION INDICATION
SCREEN
SET TEMPERATURE BUTTON
FAN SPEED BUTTON
ON/OFF BUTTON
OPRATION MODE SELECTION
BUTTON
WIRELESS REMOTE(*) CON-
TROLLER 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
ROOM TEMPERATURE BUT-
TON(*)
SETTING/CANCEL BUTTON
EXIT BUTTON
1
4
5
7
11
10
9
8
2
3
6
13
12
Please attach the inform label inside of the door.
Please choose proper language depend on your
country.
Models : PQRCVSL0
PQRCVSL0QW
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
12 Ventilator
h Some functions may not be operated and displayed depending on the product type.
Refer to remote controller in order to know detail functions.
h (*) : Functions for air conditioner.
Operating Instructions (Accessory)
h Some functions may not be operated and displayed depending on the product type.
Refer to remote controller in order to know detail functions.
Owner's Manual 13
ENGLISH
Operation display window Operation and Settings status display
Back button
When you move to the previous stage from the menu’s setting
stage
Up/down/left/right button When you change the menu’s setting value
OK button When you save the menu’s setting value
On/Off button When you turn ON/OFF the air conditioner
Operation display
Model: PREMTB100
window
Back button
Up/Down/Left/Right
On/Off Button
OK Button
Button
Method to disassemble each part
Maintenance and Service
Air Filter
Main Body
Main Body
Main BodyMain Body
Main Body
Handle
To prevent function of the ventilator deteriorating, clean dust adhered to the air filter and total heat
exchanger regularly.
Method to take each part out(Air filter, Total heat exchanger)
1. Remove the maintenance cover.
Loosen a screw on the maintenance cover.
Put the hands inside of the ceiling from the maintenance cover, and pull the maintenance
cover up.
(Looser the hinge and detach the maintenance
cover.)
2. Take the air filter out.
Take the air filter with each contained to the
left/right downside of the Total heat exchanger.
3. Take the Total heat exchanger out.
Catch the handle and then take the Total heat
exchanger (2EA) out from the main body. (2
units)
CAUTION: Take care to ensure that you
could not damage when taking the air filter out since there is a sharp part on it.
WARNING: Turn the breaker off when
cleaning the product.
CAUTION: Gloves should be worn when
doing the maintenance work.
Maintenance and Service
14 Ventilator
Maintenance and Service
Owner's Manual 15
ENGLISH
Cleaner
Air Filter
Total Heat ExchngerAir Filter
Method to Clean and Replace Each Part
1. Cleaning of Air Filter
• Clean dirt from the air filter using a vacuum cleaner or
wash with water.
(if dirt is conspicuous, wash with a neutral detergent in
lukewarm water)
• After washing with water, dry well in the shade.
(Do not expose the air filter to direct sunlight or heat
from a fire when drying it)
• If the air filter is damaged, purchase it from the service
center or professional agent.
2. Cleaning of Total Heat Exchanger
Suck dusts adhered to the surface of the Total heat
exchanger with a cleaner.
• Use the cleaner that attached to brush at its nozzle, and
use a soft brush.
• Do not use a hard nozzle on the cleaner.
(Otherwise, surface of the Total heat exchanger may be
damaged.)
• Never wash the Total heat exchanger with water.
• Replacement expenses are for a consideration after 2
years from the purchasing date.
• Expenses are for a consideration when you will contact
the service center even within 2 years from the purchasing date.
• For service, always contact the dealer or an Authorized
Service Center.
Main Body
Main Body
Main BodyMain Body
Main Body
Total Heat
Exchanger
Assemble the
air filter into the
holder structure.
Holder for
Total Heat Exchanger
Air Filter
Hinge
Assembly and Check after Maintenance
1. Assembly of Total heat exchanger
Securely put the corner parts (4 or 6 parts) of
the Total heat exchanger into the
holder for assembly and slide them into the
inside of the main body.
2. Assembly of air filter
Assemble the air filter into the holder structure
of the Total heat exchanger.
• Take care to ensure that surface of the Total
heat exchanger could not be damaged.
• Dusts adhered to the Total heat exchanger
may cause deterioration of Air volume.
3. Assembly of maintenance cover
Fix the cover to the right hinge and fix it to the
left side. (A nameplate is adhered toward the
reading direction).
Tighten a screw on the maintenance cover.
WARNING: Turn the breaker off when
cleaning the product.
CAUTION: Gloves should be worn
when doing the maintenance work.
Maintenance and Service
16 Ventilator
Maintenance and Service
Owner's Manual 17
ENGLISH
Replacement of the Humidifier
1. Remove the maintenance cover.
Loosen the screw (8EA) and detach the
maintenance cover.
2. Prepare to replace the Humidifier.
• Uncork the Drain Cap to drain the remaining water in the feed cistern.
• Loosen the screw (3EA) and detach the lid
of feed cistern.
• Loosen the screw (1EA) and Detach the
clamp.
3. Pull out the Humidifier (2EA)
• Uncork the Drain Cap to drain the remaining water in the feed cistern.
• Loosen the screw (3EA) and detach the lid
of feed cistern.
• Loosen the screw (1EA) and Detach the
clamp.
4. Insert the new Humidifier (2EA)
Confirm that the edge of top panel of humidifier element has been hooked securely on
the rail.
And assemble the lamp, rid of cistern
and drain cap.
WARNING: Turn the breaker off when
cleaning the product.
CAUTION: Gloves should be worn
when doing the maintenance work.
Clamp
Screw
Maintenance
cover
Screw
Screw
Lid of feed
cistern
Drain Cap
Humidifier
Rail
18 Ventilator
Humidifier Maintenance
Humidifier Maintenance
Inspection and Maintenance of the Humidifier
Replacing the Humidifier element
1. The humidifier element should in general be replaced once every three years when supply water
is soft water, but outside factors (water quality, operating times) may shorten its productive life.
2. Contact your dealer if you have any questions.
This note is only applied to model that there is humidity function.
When humidifying fails, the remote controller does not display any error code.
Just twinkle the icon of Humidification “ ” for 30 minutes and disappeared or display warning icon
on the side of Humidification icon.
Usage under that status will lead to insufficient humidification and increased tap water consumption.
The solenoid valve and float switch should be checked at the beginning of heating season.
• Have your dealer do the following inspections in order to get the longest use.
• In order to prevent harmful bacteria from generating, ask your dealer to do maintenance on
humidifying unit portion at the beginning or the end of the heating season.
Inspected
part
Feed water
tank
Solenoid
valve
Content of maintenance
Items to be inspected Solution
Check for operation of float
switch
Check for dirt Clean if very dirty.
Check for shutting and opening.
Check in a similar fashion when
checking the float switch
operation.
Clean if it does not work
properly due to build-up.
Replace if it doesn’t work.
Problems if maintenance is not
carried out
Insufficient humidifying.
Overflowed feed water tank.
Weak fan strength.
Reduced humidifying capacity.
Insufficient humidifying.
Overflowed feed water tank.
(Increased tap water
consumption.)
NOTICE
Humidifier Maintenance
Owner's Manual 19
ENGLISH
Maintenance Cycle
• Recommended maintenance cycle of each part.
Name of Part
Inspection cycle
(Cleaning cycle)
Replacement Cycle
Air filter 0.5 year 3 years
Total Heat Exchanger 1 year 10 years
Humidifier Element 1 year 1~3 years
• This table indicates main parts.
• See the maintenance and inspection contract for details.
• This maintenance cycle indicates recommended lengths of time until the need arises for maintenance work, in order to ensure the product is operational as long as possible.
• Use for appropriate maintenance design (budgeting maintenance and inspection fees, etc.).
• Life of humidifier element is about 3 years (4,000 hours), under the supply water conditions of
hardness ; 150mg/l.
• Life of humidifier element is about 1 year (1,500 hours), under the supply water conditions of hardness ; 400mg/l.
• Annual operating hours : 10 hours/day x 26 days / month x 5 month = 1,300 hours.
• The cycle is not the same as the warranty period
20 Ventilator
Check Item prior to notify a failure
The Product doesn't work
The Product doesn't work
through you press the 'ON'
switch
Even though you change the
fan speed, the operation mode
doesn't change and it changes
to 'Auto or Low'
Even though you push the button of remote controller, any
function doesn't work.
Is power not supplied?
Is the Indoor temperature less
than 45°c or more than 40°C?
Is the Indoor temperature less
than -10°C or more than 45°C?
Is the icon " " displaying
on remote controller?
Is the icon " " displaying
on remote controller? Does the
message "HL" display on
remote controller when you
push the button.
Is the toast massage displaying on remote controller?
Supply Power
It's standby mode for protecting Total Heat Exchanger.
It's operation mode to protect
Total Heat Exchanger.
It's Child Lock mode. Refer to
Remote controller.
It's centralized control mode.
You can't control on remote
controller.
Refer to Remote controller.
Symptom Check Item Counter-measure
Loading...