Page 1
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
P/NO : MFL63284403
www.lg.com
TYPE : VENTILATOR
ENGLISH
ITALIANO
ESPAÑOL
FRANÇAIS DEUTSCH
ΕΛΛΗΝΙΚΆ
PORTUGUESE
NEDERLANDS
POLSKI MAGYAR
Page 2
Ventilator Ownerʼs 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 ..........................6
Introduction ....................................7
Electrical Safety .............................8
Characteristics ...............................9
Operating Instructions.................10
Additional function ......................14
Maintenance and Service ............17
Humidifier Maintenance...............21
Check Item prior to notify
a failure .........................................23
2 Ventilator
Page 3
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
n Meanings of symbols used in this manual are as shown below.
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
n 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.
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.
NOTICE
Safety Precautions
Owner's Manual 3
ENGLISH
Page 4
n Operation
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.
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
birdʼs nest. Otherwise, it may
cause scarcity of indoor oxygen.
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.
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.
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.
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.
Safety Precautions
4 Ventilator
Page 5
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.
Donʼt 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.
n Installation
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.
n Operation
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.
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.
Safety Precautions
Owner's Manual 5
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Page 6
Prior to Operation
Prior to Operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord.
5. Do not start/stop operation by plugging/unplugging the power cord.
6. If the cord/plug is damaged, replace it with only an authorized replacement part.
1. 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.
2. Due to the possibility of oxygen deficiency, ventilate the room when used together
with stoves or other heating devices.
3. 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.
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur
when handling sharp metal edges.
2. Do not use water to clean inside the ventilator. Exposure to water can destroy the
insulation, leading to possible electric shock.
3. 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 unitʼs 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
6 Ventilator
Page 7
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 7
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Page 8
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.
Preferred method
Ensure proper ground
exists before use
8 Ventilator
Page 9
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 9
ENGLISH
Page 10
Operating Instructions
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(*)
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/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
j Some functions may not be operated and displayed depending on the product type.
Refer to remote controller in order to know detail functions.
j (*) : Functions for air conditioner.
10 Ventilator
Page 11
Operating Instructions
Ventilation operating scene and ventilation operating method
1. Control using remote controller where air conditioner indoor unit and the
ventilation product is installed at the same time.
h Connecting wires is the same as air conditioner user manual. (Refer to page about Group control)
2. Press 'Ventilation' button on the wired remote controller and enter Ventilation
control mode to check the operation of ventilation product.
3. To convert back to air conditioner mode, press 'Ventilation' button at the
ventilation mode.
- If no button pressed for 15 seconds or more at ventilation mode, it automatically converts back to air
conditioner mode.
- Ventilation product represent general ventilation product and direct expansion ventilation product.
Single Operation
Direct
Expansion
Ventilation
Interlinked Operation
(Direct Expansion Ventilation Single Operation)
(Direct Expansion Ventilation Interlinked Operation)
Wired Remote
Controller
Direct Expansion
Ventilation
Air conditioner
Indoor unit
Wired Remote Controller
Direct
Expansion
Ventilation
Owner's Manual 11
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Page 12
Operating Instructions
Single operation with direct expansion type
It performs ventilation operation with cooling or heating at the same time using the heat exchanger
inside the direct expansion type ventilation product.
12 Ventilator
Direct expansion type ventilation single operation
button on the remote controller.
1
It displays as the figure right side in
the direct expansion type ventilation
single operation.
Pressing button will change the
2
ventilation mode.
Pressing the button converts from 'heat
exchange → normal → automatic'.
Ventilation
mode
Heat
exchange
Normal
Automatic
Remote Controller
Display
Mode that supply/exhaust air via Total heat exchanger.
Appropriate for use in summer/winter when temperature
difference between indoor/outdoor air is severe.
Mode that exhaust the air without the Total heat
exchange method. Appropriate for use in spring/autumn
or in case of the high indoor pollution degree.
Automatically operates in the optimum ventilation mode
by measuring the indoor/outdoor air temperature of the
ventilation system.
❈ Searches the optimum status by operation mode or
setting temperature of ventilator as well as by
indoor/outdoor temperature of the ventilation system if
linked to Multi-V system. (Only for some models)
Contents
❈
The 88 segment display above is only displayed
when it is in direct expansion type ventilation single
operation and the air conditioner is stopped.
Pressing button will change
3
operation mode.
- Pressing the button will convert from
'cooling → heating → automatic → fan.
Pressing button in ventilation
4
mode changes the strength of wind.
- Pressing the button can select
from 'Low → High → Super High'.
❈
Cooling/heating operation selection and the
desired temperature can be adjusted in direct
expansion type ventilation single operation.
❈
Refer to the basic operation - temperature
adjustment for changing desired temperature.
Page 13
Operating Instructions
Interlinked operation with direct expansion type
It can only be used when the air conditioner is interlinked with direct expansion ventilation product.
Owner's Manual 13
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Interlinked Operation with Direct
Expansion Ventilation
Press button on the remote
1
controller.
- It is used only when air conditioner
and the ventilation product are
interlinked. ('Interlinked operation' displayed
on the remote controller display)
Pressing button in ventilation
2
mode starts ventilation.
Pressing button in ventilation
3
mode will change the ventilation
mode.
- Every time the button is pressed,
it changes from 'Heat exchange → Normal →
Automatic'.
❈ The display on the remote controller
displays only when it is in ventilation mode,
and when it converts to air conditioner
mode, it displays the desired temperature.
Pressing button in ventilation
4
mode changes the strength of wind.
- Pressing the button can select from
'Low → High → Super High'.
Changing back to air conditioner mode
5
1) Automatic Conversion : when no button is
pressed for 15 seconds or longer, it
automatically converts back to air
conditioner mode.
2) Manual Conversion : Pressing button
in ventilation mode will manually convert.
Page 14
Additional Function
Fast/Energy saving ventilation mode
Additional Function
It is a function to operate ventilation function more efficiently through the ventilation additional
functions, fast / Energy saving settings.
14 Ventilator
Fast : ventilates fast
Press button in ventilation mode.
1
- It converts in the order of 'fast ’
energy saving' in ventilation mode.
'Fast' is blinking on the display, and pressing
2
button will stabilize 'fast' icon, and the
function is set.
Pressing button will exit the
3
settings.
Energy Saving : efficiently ventilates and performs
energy savings.
Press button in ventilation mode.
1
- It converts in the order of 'fast ’
energy saving' in ventilation mode.
'Energy Saving' is blinking on the display,
2
and pressing button will stabilize 'Energy
Saving' icon, and the function is set.
Pressing button will exit the
3
settings.
❈ General ventilation and direct expansion
ventilation have the same additional
functions.
❈
Ventilation/Heater/Humidifier additional function
settings are the same as air conditioner.
Page 15
Additional Function
Humidification operating mode
Only products with humidifying function can use this.
NOTICE
• Humidification function might not be operated at the partial product.
• This function is able to selected automatically or manually when operating heating mode
(※ Factory default : When choosing heating mode, humidification mode is automatically selected.)
• In case of interlinked operating, control Humidification operating mode refer to above chart on
ventilation mode, though pushing the button.
Owner's Manual 15
ENGLISH
Repeatedly pressing button
1
until icon flash.
Turn on/off HUMIDIFIER by
2
pressing button (The icon
will be displayed in case of
SETTING option and disappear
in reverse case .)
Press button to exit.
3
❈ 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
Page 16
Temperature setting/Room Temperature check
• For air-cooling drive, from 18°C to 30°C, and for heating drive, from 16°C to 30°C, you can select
desired temperature.
• 5°C is proper for the difference between room and outside temperature.
• Room temp: Indicate the current room
temperature.
• Set temp: Indicate the temperature that user
want to set.
h
Depend on what kind of controller, the desired
temperature can be adjusted at 0.5˚C or 1˚F.
Additional Function
16 Ventilator
Temperature Setting
We can simply adjust the desired
1
temperature.
• Press the buttons to adjust the
desired temperature.
: Increase 1˚C or 2˚F per one time
pressing
: Decrease 1˚C or 2˚F per one time
pressing
Cooling operation:
- The cooling mode doesn't work if
desired temperature is higher than room
temperature Please lower the desired
temperature.
Heating operation:
- The heating mode doesn't work if desired
temperature is lower than room
temperature Please increase the desired
temperature.
Room Temperature Check
Whenever press button, the room
1
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
Page 17
Method to disassemble each part
Maintenance and Service
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.
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.
Owner's Manual 17
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Page 18
Cleaner
Air Filter
Total Heat ExchngerAir Filter
Maintenance and Service
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.
18 Ventilator
Page 19
Main Body
Main Body
Hinge
Main BodyMain Body
Main Body
Total Heat
Exchanger
Assemble the
air filter into the
holder structure.
Holder for
Total Heat Exchanger
Air Filter
Assembly and Check after Maintenance
Maintenance and Service
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).
WARNING: Turn the breaker off when
cleaning the product.
CAUTION: Gloves should be worn
when doing the maintenance work.
Owner's Manual 19
ENGLISH
Page 20
20 Ventilator
Maintenance and Service
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
Page 21
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)
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.
NOTICE
• 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.
Owner's Manual 21
ENGLISH
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.)
Page 22
Humidifier Maintenance
22 Ventilator
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
Page 23
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.
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.
Symptom Check Item Counter-measure
Check Item prior to notify a failure
Owner's Manual 23
ENGLISH
Page 24
24 Ventilator
Page 25
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