LG | LSU5NR3CIG | LG LSN5AR5CIG Owner’s Manual

ROOM AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : WALL MOUNTED
For Split AC Domestic Models
P/No. MFL39754865_V4
MFL39754865
2
15 ADVANCED FUNCTIONS
3
4 SAFETY INSTRUCTION
8
BEFORE
– Prior to operation
– Components
– Electrical Safety
– Using the remote control
Inserting Batteries
Installing the remote control holder
Wireless Remote Control
12 BASIC FUNCTIONS
Cooling your room
Heating your room
Removing humidity
Airing your room
Adjusting the fan speed
Adjusting the air flow direction
Setting the timer
– Setting the current time
– Turning ON the air conditioner
automatically at a set time
– Turning OFF the air conditioner
automatically at a set time
– Cancelling the timer setting
- Setting sleep mode
Changing room temperature quickly
Indoor air purification
– Auto Clean operation
Energy saving cooling mode
Auto operation
Dimmer
Auto Changeover
Mosquito away operation
Operating the air conditioner without the
remote control
Restarting the air conditioner automatically
18 MAINTENANCE
– Cleaning the air filter
– Cleaning the anti-allergy filter
– Cleaning the plasma filter
– Cleaning the 3M filter.
– Outdoor Unit
21 TROUBLESHOOTING
– Self-diagnosis function
– Before requesting service
CAUTION
• Contact the authorized service technician for repair or
maintenance of this unit.
• Please install your air-conditioner by company
authorized service franchisee / authorized service
and sales dealer.
• 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.
• When the power cord is to be replaced, replacement
work shall be performed by authorized personnel only,
using only genuine replacement parts.
We recommend usage of voltage stabilizer with
high / low voltage cut off in areas having voltage
fluctuations.
AC TONNAGE
STABILIZER KVA
(3-STEP STABILIZER)
1.0
1.5
2.0
3
4
5
3
Avoid excessive cooling
reduce the cooling / dehumidication functions.
(Refer page no. 19 and 20 details of owner's manual).
4
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
5
Do not install the air conditioner on an unstable surface or where there may be a danger of unit falling
It may result in death, serious injury, or product failure.
Dos and Don’ts
Be sure to use only those parts which are listed in the service parts list. Never attempt to modify
the equipment. It may result in death, serious injury, effect on product performance or product failure.
Only use components that are approved by the manufacturer and do not repair or modify them.
Failure to do so may result in electric shock, effect on product performance or product failure.
Only use the refrigerant specified on the air conditioner label. Failure to do so may result in explosion
or fire.
enter
6
SAFETY INSTRUCTIONS
ON OFF
When there is a gas leak, before using air conditioner again contact authorized service person for
verification and repair. Failure to do so may result in explosion or fire.
Do not block the inlet or outlet of air flow. It may effect product performance.
or serious injury.
or health complications.
For inner cleaning, contact an Authorized Service Center or a dealer. Do not use harsh detergent that
causes corrosion or damage on the unit. Harsh detergent that causes failure or product, fire or
electronic shock
It may effect product performance.
water leakage or product failure.
to neighbours.
not cause
neighbours.
,
Dos & Don'ts
effect product performance.
SAFETY INSTRUCTIONS
7
remote
may effect product performance or
electric shock or serious injury.
Disposal of your old appliance (as per e-waste Rules)
1. When this crossed out wheeled bin symbol is depicted on
the product and its operator’s manual, it means the product
is covered by the e-waste Management and Handling
Rules, 2011 and are meant to be recycled, dismantled,
refurbished or disposed off.
2. Dos
a. The product is required to be handed over only to the
authorized recycler for disposal.
b. Keep the product in isolated area, after it becomes non-functional/unrepairable so as to prevent its accidental breakage.
Don’t
a. The product should not be opened by the user himself/herself, but only by
authorized service personnel.
b. The product is not meant for re-sale to any unauthorized agencies/scrap
dealer/ kabariwalah.
c. The product is not meant for mixing into household waste stream.
d. Do not keep any replaced spare part(s) from the product in exposed area.
3. Any disposal through unauthorized agencies/person will attract action
under Environment (Protection) Act 1986 .
4. Hazards of improper handling or accidental breakage
a. If batteries are disposed incorrectly, it can greatly harm the environment.
The chemical by-products are hazardous.The metals and chemicals
found in batteries can mix into soil which may be hazardous to humans,
plants and animals. If thrown in fire, they can cause blast and release
toxic gases which may be harmful for health.
b. The refrigerant (R-22) used can be combustible at low pressure. The
potential health effects of over exposure is dizziness, headache and
heart irregularities.
5.To locate a nearest collection centre or call for pick-up (limited area only) for
disposal of this appliance, please contact Toll Free No.1800-180-9999 for
details. All collection centre and pick up facilities are done by third parties
with LG Electronics India Pvt. Ltd. merely as a facilitator.
For more detailed information , please visit : http://www.lg.com
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Prior to Operation
Preparing for Operation
1. Contact an installation specialist for
installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit breaker.
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.
Usage
1. Being exposed to direct airflow for a long
time may be hazardous to your health. Do
not expose occupants, pets, or plants to
direct airflow for a long time.
2. Due to the possibility of oxygen deficiency,
ventilate the room when using the
appliance together with stoves or other
heating devices.
3. Do not use this air conditioner for nonspecified special purpose (e.g. preserving
precision devices, food, pets, plants, or art
objects). Such use may damage your
properties.
Cleaning and Maintenance
1. Do not touch the metal parts of the unit
when removing the filter. Injury can occur.
2. Do not use water to clean inside the air
conditioner. Exposure to water can
destroy the insulation, leading to electric
shock or effect product performance.
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 unit’s power is triggered while cleaning
inner parts of the unit.
Service
For repair and maintenance, contact your
authorized service dealer.
Components
Symbols used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that may cause harm to the
air conditioner.
This symbol indicates special notes.
Features
WARNING
This appliance should be installed in accordance with national wiring regulations. This guide acts as a
guide to help to explain product features.
Indoor unit
Air Inlet
Signal Receiver
Air Filter
Front Panel
Outdoor unit
Air Intake Vents
Connecting
Wires
Piping
Air Outlet Vents
Base Plate
Drain Hose
Electrical Safety
WARNING
• This appliance must be properly grounded.
To minimize the risk of electric shock, you must always plug into a grounded outlet.
• Do not cut or remove the grounding.
• 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.
• If you have any doubt whether the air conditioner is properly grounded, check the wall receptacle
and circuit checked by a qualified electrician.
Using the remote control
Using the remote control
You can operate the air conditioner more conveniently with the remote control.
Wireless remote control
Signal Transmitter
Air Circulation button Used to circulate the room air without cooling or
heating.
Mosquito Away operation button Used to
start or stop Mosquito Away operation
Sets the
sleep mode auto operation.
M
Display
Screen
2
FAN
Adjusts the desired temperature when cooling and heating.
M’SOON
Control
Panel
ON/OFF button : Turns the air conditioner ON/OFF
-
fan speed.
H’COOL
LIGHT
M
M’SOON
Signal Transmitter
Use to remove excess moisture.
H’COOL button : Cools down the
indoor temperature within a short
period of time
H’COOL
air flow direction.
M
Display
Screen
2
AM
ON
OFF
the start / end time
M’SOON
A/CLEAN
Control
Panel
H’COOL
LIGHT
Turn indoor unit
display ON or OFF.
and set current time.
controller settings.
remote
LIGHT
Symbol is for indoor unit display ON/OFF not remote controller.
12 BASIC FUNCTIONS
BASIC FUNCTIONS
Cooling your room
Removing humidity (Cooling Mode Only)
(Cooling operation)
(Monsoon operation)
1 Press
to turn on the power.
2 Press
repeatedly to select the cooling
This mode removes excess moisture from
environment with high humidity or in the rainy
season, in order to prevent mold from setting
in. This mode adjusts the room temperature
and the fan speed automatically to maintain
the optimal level of humidity.
operation.
- is displayed on the display screen.
1 Press
2 Press
-
M
to turn on the power.
M’SOON
to select the monsoon operation.
is displayed on the display screen.
M
3 Press
or
to set the desired
temperature.
- The temperature range is 18°C 30°C
Heating your room
(Heating operation)
1 Press
to turn on the power.
2 Press
repeatedly to select the heating
operation.
is displayed on the display screen.
-
3 Press
or
to set the desired temperature.
- The temperature range is 16°C 30°C
!
NOTE
Cooling-only models do not support this
function.
!
NOTE
• In this mode you cannot adjust the room
temperature, as it is adjusted automatically. Also, the room temperature is not
displayed on the display screen.
• In this mode indoor unit fan and outdoor
unit will be OFF intermittently.
• To Exit from Monsoon mode press
key or H’COOL key or
key
13
Airing your room
(Air Circulation operation)
This mode only circulates the indoor air
without changing the room temperature.
to turn on the power.
1 Press
2 Fan button : Press FAN turn on the air
-
circulation operation.
is displayed on the display screen.
Adjusting the air flow direction
1 To adjust the direction of the flow vertically,
press change the air flow direction automatically.
- This function is apply for only turn SWING On/Off.
2 To adjust the direction of the flow horizontally, press
change the air flow direction automatically.
- This function is apply for only turn SWING On/Off.
!
3 Press
to adjust the fan speed.
Adjusting the fan speed
1 Press
repeatedly to adjust the fan
speed.
- Select
if you want natural air.
The fan speed adjusts automatically.
Natural wind (CHAOS Logic)
For fresher feeling, press the INDOOR FAN
SPEED SELECTION BUTTON and set to
Natural wind mode ( ).
In this mode, the wind blows like a natural
breeze by automatically changing fan speed.
NOTE
• Adjusting the air flow direction horizontally may not be supported, depending
on the model.
• Adjusting the air deflector arbitrarily may
cause product failure.
• If you restart the air conditioner, it starts
to operate with the previously set direction of air flow, so the air deflector may
not match the icon displayed on the remote control. When this occurs, press
to adjust the direction of
or
the air flow again.
Setting the timer
You can use the timer function to save energy
and to use the air conditioner more efficiently.
Setting the current time
1 Press
and hold it for longer than 3 seconds.
- The AM/PM icon flickers at the bottom of
the display screen.
14
2 Press
3 Press
or
to select desired time.
.
to finish.
Turning ON the air conditioner automatically at a set time
1 Press
- The icon below flickers at the bottom of
the display screen.
Canceling the timer setting
1 Press
or
to select the timer setting
to cancel.
2 Press
- To cancel all timer settings, press
(The timer lamp on the air conditioner and
the display will go off.)
Setting sleep mode
Use the sleep mode to turn OFF the air conditioner automatically when you go to sleep.
1 Press
2 Press
or
time.
times.
to select desired
to turn on the power.
2 Press
3 Press
to finish.
4 When setting the timer, current time and
3 Press
ON icon are displayed on the display
screen indicating that the ON TIMER is
set.
4 Press
or
to select the hour
(up to 7 hours).
to finish.
is displayed on the display screen in
sleep mode.
Turning OFF the air conditioner automatically at a set time
1 Press
- The icon below flickers at the bottom of
the display screen.
2 Press
or
times.
to select the
desired
time.
3 Press
to finish.
4 When setting the timer, current time and
OFF icon are displayed on the display
screen indicating that the OFF TIMER is
set.
This mode does not have auto restart
feature.
The sleep mode will operate indoor fan at
super low speed in cooling mode and at low
speed in heating mode for pleasant sleep
In cooling mode or Monsoon mode:
The setting temperature will rise automatically
two times by 1°C over next consecutive 30
minutes (Maximum 2°C) for a comfortable
sleep.
This will be the final setting temperature as
long as sleep mode is functioning.
After completion of set time unit will switch
OFF automatically.
ADVANCED FUNCTIONS 15
ADVANCED FUNCTIONS
The air conditioner offers some additional advanced functions.
Changing room temperature
quickly
H’COOL(Himalaya)Mode
- If you turn off the power, the fan operates for 30 minutes and cleans the inside
of the indoor unit.
!
NOTE
Some buttons cannot be used while the
auto cleaning function is in operation.
This mode allows you to cool indoor air quickly
During Auto Clean function, “Co” will
be displayed on the unit.
Press
H’COOL
Power saving lamp blink depending
on the model.
Energy saving cooling mode
-In H’COOL(Himalaya)mode,30 minutes strong
focused air blows out for faster cooling.
This mode minimizes power consumption during cooling and increases the set temperature
to the optimal level for a more comfortable environment.
The temperature automatically sets at
22°C if ambient temperature is below 22°C.
The temperature maintains if ambient temperature is above 22°C
During & after H'COOL mode swing
function will be ON by default.
To OFF swing function Press respective
swing key.
1 Press
to turn the power on.
2 Press
repeatedly to select the cooling
operation.
3 Press
-
is displayed on the display screen.
This mode does not have auto restart
feature.
Indoor air purification
Auto Clean operation
In the cooling and monsoon operations,
moisture is generated inside the indoor unit.
Use the auto cleaning function to remove
such moisture.
1 Press
to turn on the power.
2 Press
is displayed on the display screen.
!
NOTE
This function may not be supported,
depending on the model. In Energy Saving
Cooling Mode, temperature on the display
of the remote controller and air conditioner can be different.
This mode does not have auto restart
feature.
16 ADVANCED FUNCTIONS
Auto operation (Optional)
(Artificial inelligence)
Cooling-only models
Heat pump models
In this mode, the fan speed and the
temperature adjust automatically,
based on the room temperature.
1 Press
to turn on the power.
2 Press
repeatedly to select auto operation.
3 Press
or
Auto Changeover
(Optional)
to select the desired oper-
This operation is basically heating or cooling function
of the air conditioner. But during this operation the
controller change the operation mode automatically
to keep the temperature within ±2 ° C with respect to
the setting temperature.
1 Press
to turn on the power.
2 Press
repeatedly to select auto operation.
-
AI
is displayed on the display screen.
ation code if the temperature is higher or
lower than the desired temperature.
AI
!
Code
2
1
0
Description
Cool
Cool slightly
Maintain
room
temperature
-1 Heat slightly
-2 Heat
NOTE
• In this mode, you cannot adjust the fan
speed, but you can set the air deflector
to rotate automatically.
• This function may not be supported, depending on the model.
AI
3 Press
or
to set the desired
temperature.
- The temperature range is 18°C - 30°C
4 Press
!
repeatedly to select the fan speed.
NOTE
• This function may not be supported, depending on the model.
Mosquito Away* Operation (Optional)
Mosquito Away is a device to radiate frequency
which mosquitoes don’t like.
Dimmer (Optional)
In Dimmer Mode Unit Display will be turned OFF
completely but system will be in running state.
1 Press
- To start Mosquito Away function.
1. Make sure that remote & Air conditioner are ON.
2. Press
to activate/deactivate dimmer
LIGHT
function.
2 Press
Dimmer Mode will be cancelled if any key
except
is pressed
(Power Key will turn OFF the Unit).
This function may not be supported by
Auto Restart feature (depending on
selected models).
!
again to finish
NOTE
• You can use this function by pressing
without
turning the air conditioner ON. (In this case, Fan speed
can not be changed).
At this time horizontal vane will be at default position &
the fan speed will be low.
• This function can be used with other function like timer,
monsoon.
• This function may not be supported depending on the
model.
• The Mosquito Away performance can be different
depending on the customer’s environment.
* For detail refer Disclaimer.
ADVANCED FUNCTIONS 17
(Forced Operation)
ON/OFF
restart (Optional)
8
Open the front
panel upward
ON/OFF
button
Open the front
panel upward
ON/OFF
button
Cooling Model
Operating mode
Cooling
Heat pump Model*
Room Temp. ³ 24°C
Cooling
21°C ³ Room Temp. < 24°C
Healthy Dehumidification
Room Temp. < 21°C
Heating
Indoor FAN Speed
High
High
High
High
Setting Temperature
22°C
22°C
23°C
24°C
If you want to stop the unit, re-press the power button.
!
NOTE
• This function may not be supported, depending on the model.
18 MAINTENANCE
3M filter*
*
3 M filter*
1
3M filter.
Use soap solution to clean the heat exchanger
coils and the panel vents (consult with technician).
OFF
consumption.
*
MAINTENANCE 19
Remove the plasma filter after 10 seconds.
Caution :
Do not press
the mesh
20 MAINTENANCE
Cleaning the 3M Filter
(Optional)
3M Filter.
,
- Do not wash the 3M Filter with water
because the filter can be damaged.
We suggest changing the 3M Filter every
6 months.
The location of the filters may differ,
depending on the model.
For more filters, Please contact the
LG service center.
(Refer to the warranty card.)
The feature can be changed according to
type of model.
Outdoor Unit
The heat exchanger coils and panel vents of the outdoor unit
should be checked regularly. If clogged with dirt or soot, the
heat exchanger and panel vents may be professionally steam
cleaned.
Dirty or clogged coils will reduce the operating efficiency
of the system and cause higher operating costs.
(Rear)
Air intake
vents
(Side)
Piping
Drain Hose
Air outlet
vents
TROUBLESHOOTING 21
call
call
call
There is a burning smell and
an abrupt sound coming
from the unit.
call
22 TROUBLESHOOTING
In summer, it may take some time to cool
indoor air. In this case, select the H’COOL
operation to cool indoor air quickly.
The auto operation,
H’COOL operation or
dehumidifying operation
is selcted.
The air circulation operation or H’COOL operation is selected.
Contraction or expaTak-tak noise from indoor nsion of plastic components due to chanunit
ge in temperature
In some operation modes, such as the H’COOL
or dehumidifying operation modes, you cannot
adjust the fan speed. Select an operation mode
in which you can adjust the fan speed.
In some operation modes, such as the air
circulation or H’COOL mode, you cannot
adjust the temperature. Select an operation
mode in which you can adjust the temperature.
It is a natural phenomenon, and can only
be reduced but not overcome completely
Operation ranges
For Heat & Cool model, heating operation range follows the below table.
Heating
Operation range
Outdoor temperature
0~24°C
* When the outdoor temperature drops below 0°C, heating capacity may drop slightly depending on the
operation condition.
When the air conditioner is not going to be used for a long time.
When air conditioner is not going to be
used for a long time.
When the air conditioner is to be used again.
• This will dry out the internal mechanisms.
Clean the air filter and install it in the indoor
unit.
(Refer to page 19 for cleaning filters.)
Turn off the circuit breaker, and disconnect
the plug.
Check that the air inlet and outlet of the
indoor/outdoor unit are not blocked.
Operate the air conditioner on Air circulation
mode (Refer to page 13) for 2 to 3 hours.
CAUTION
Turn off the circuit breaker when the air conditioner
is not going to be used for a long time.
Dirt may collect and may cause a fire.
Remove the batteries from the remote
control.
DISCLAIMER 23
DISCLAIMER
IMPORTANT: Long term effect not tested and mosquitoes may become resistant. Mosquito species used in
the test below may differ from the mosquito species of your region. This product is one of the ways to manage
mosquitoes and not intended to replace other protective devices against mosquitoes.
Test Details:
A:
Tested by International Institute of Biotechnology and Toxicology (IIBAT), India, According to LG internal
testing method.
Test conducted, three times at temperature of 27±2°C and humidity of 60±10%
Test used two chambers size 3.5m x 2.6m x 2.2m, the chamber with the LG air conditioner assumed to
be inside (“inside chamber”) and the chamber without the LG conditioner assumed to be outside
(“outside chamber”).
Cages (25cm3) are placed inside each chamber, connected using netted sleeves to enable the movement
of the mosquitoes from one cage to another.
One person is placed inside the chamber to attract mosquitoes
For each test, 50 lab cultured 3-5 days old mosquitoes were placed in the cage in outside chamber; number
of mosquitoes coming into the cage in inside chamber was counted every 10 minutes for 90 minutes under
2 settings:
Control setting (low fan ON + mosquito repelling ultrasonic OFF)
Treatment setting (low fan ON + mosquito repelling ultrasonic ON)
Test Result:
Found to repel on average 81.1% of Aedes aegypti mosquitoes. Repel rate shows percentage of mosquitoes
prevented from entering the inside chamber after 90 minutes of Treatment setting compared to Control setting.
Represented average of 81.1% derived from 76.9%, 84.6%, 81.8%.
B:
Tested by Intertek, Korea,
According to LG internal testing method.
Test conducted, three times at temperature of 27±2°C and humidity of 60±10%
Test used two chambers size 33m3 and 19m3 connected by a channel made of white sheet, small
chamber assumed to be outside (“outside chamber”) and the large chamber to be inside with the
LG air conditioner (“inside chamber”)
One person is placed inside the inside chamber to attract mosquitoes
For each test, 50 lab cultured 3-5 days old mosquitoes were released into outside chamber; number
of mosquitoes coming into the inside chamber was counted every 10 minutes for 90 minutes under
2 settings:
Control setting (low fan ON + mosquito repelling ultrasonic OFF)
Treatment setting (low fan ON + mosquito repelling ultrasonic ON)
Test Result:
Found to repel on average 72.5% of Aedes aegypti mosquitoes. Repel rate shows percentage of mosquitoes
prevented from entering the inside chamber after 90 minutes of Treatment setting compared to Control setting.
Represented average of 72.5% derived from 73.1%, 64.3%, 80.0%.
Results may vary in other settings, including but not limited to temperature, humidity, location, space, mosquito
species, number of mosquitoes, number of persons, and operation time.
INSTALLATION 21
windbreak so that outdoor unit
- Do not use sea water for this purpose.
20 INSTALLATION
TEST RUNNING
1. Check that all tubing and wiring have been
properly connected.
2. Check that the gas and liquid side service valves
are fully open.
3. Ensure the difference between the intake
temperature and the discharge is more than 8°C
(Cooling) or reversely (Heating).
Intake temperature
A Prepare remote control
1. Remove the battery cover
by pulling it according to the
arrow direction.
Discharge air
2. Insert new batteries making
sure that the (+) and (–) of
battery are installed correctly.
3. Reattach the cover by
pushing it back into position.
Use 2 AAA(1.5volt) batteries. Do not use
rechargeable batteries.
Remove the batteries from the remote control if
the system is not going to be used for a long
time.
B Settlement of outdoor unit
Anchor the outdoor unit with a bolt and nut ø10mm)
tightly and horizontally on a concrete or rigid mount.
When installing on the wall, roof or rooftop, anchor
the mounting base securely with a nail or wire
assuming the influence of wind and earthquake.
In the case when the vibration of the unit is
conveyed to the hose, secure the unit with an
anti-vibration rubber.
Discharge
temperature
4. For reference; the gas side pressure of optimum
condition is as below (Cooling).
kgf/cm2
2
kgf/cm
If the actual pressure is higher than shown, the
system is most likely over-charged, and charge
should be removed. If the actual pressure is
lower than shown, the system is most likely
undercharged, and charge should be added.
The air conditioner is now ready for use.
PUMP DOWN
This is performed when the unit is to be
relocated or the refrigerant circuit is serviced.
Pump Down means collecting all refrigerant in the
outdoor unit without loss in refrigerant gas.
CAUTION:
Be sure to perform Pump Down procedure with the
unit cooling mode.
Bolt
Pump Down Procedure
Tubing connection
C Evaluation of the performance
Operate unit for 15~20 minutes, then check the
system refrigerant charge:
1. Measure the pressure of the gas side service
valve.
2. Measure the temperature of the intake and
discharge of air.
1. Connect a low-pressure gauge manifold hose to the
charge port on the gas side service valve.
2. Open the gas side service valve halfway and purge
the air from the manifold hose using the refrigerant
gas.
3. Close the liquid side service valve(all the way in).
4. Turn on the unit's operating switch and start the
cooling operation.
5. When the low-pressure gauge reading becomes 1
to 0.5kg/cm2G(14.2 to 7.1 P.S.I.G.), fully close the
gas side valve stem and then quickly turn off the
unit. At that time, Pump Down has been completed
and all refrigerant gas will have been collected in
the outdoor unit.
INSTALLATION 19
AIR PURGING
Soap water method
(1) Remove the caps from the 2-way and 3-way
valves.
(2) Remove the service-port cap from the 3-way
valves.
(3) To open the 2-way valve turn the valve stem
counterclockwise approximately 90°, wait for
about 2~3 sec, and close it.
(4) Apply a soap water or a liquid neutral detergent
on the indoor unit connection or outdoor unit
connections by a soft brush to check for
leakage of the connecting points of the piping.
(5) If bubbles come out, the pipes have leakage.
Gas side
Liquid side
3-way valve
(Close)
2-way valve
(Open)
Cap
Hexagonal wrench
C Evacuation
Connect the charge hose end described in the
preceding steps to the vacuum pump to
evacuate the tubing and indoor unit.
Confirm the "Lo" knob of the manifold valve is
open. Then, run the vacuum pump.
The operation time for evacuation varies with
tubing length and capacity of the pump. The
following table shows the time required for
evacuation.
Indoor unit
Required time for evacuation when 30 gal/h
vacuum pump is used
If tubing length is less If tubing length is longer
than 10m (33 ft)
than 10m (33 ft)
10 min. or more
15 min. or more
Outdoor unit
When the desired vacuum is reached, close the
"Lo" knob of the manifold valve and stop the
vacuum pump.
D Finishing the job
With a service valve wrench, turn the valve stem
of liquid side valve counter-clockwise to fully
open the valve.
Turn the valve stem of gas side valve
counter-clockwise to fully open the valve.
Loosen the charge hose connected to the gas side
service port slightly to release the pressure, then
remove the hose.
Replace the flare nut and its bonnet on the gas side
service port and fasten the flare nut securely with an
adjustable wrench. This process is very important to
prevent leakage from the system.
Replace the valve caps at both gas and liquid side
service valves and fasten them tight.
This completes air purging with a vacuum pump.
The air conditioner is now ready to test run.
Manifold valve
Pressure
gauge
Lo
Hi
Open
Close
Vacuum pump
18 INSTALLATION
AIR PURGING
Air purging
Air and moisture remaining in the refrigerant
system have undesirable effects as indicated
below.
Pressure in the system rises.
Operating current rises.
Cooling(or heating) efficiency drops.
Moisture in the refrigerant circuit may
freeze and block capillary tubing.
Water may lead to corrosion of parts in the
refrigeration system.
Therefore, the indoor unit and tubing between
the indoor and outdoor unit must be leak tested
and evacuated to remove any non condensable
gas and moisture from the system.
Do a leak test of all joints of the tubing(both
indoor and outdoor) and both gas and liquid side
service valves.
Bubbles indicate a leak. Be sure to wipe off the
soap with a clean cloth.
After the system is found to be free of leaks,
relieve the nitrogen pressure by loosening the
charge hose connector at the nitrogen cylinder.
When the system pressure is reduced to normal,
disconnect the hose from the cylinder.
Indoor unit
Air purging with vacuum
pump
A Preparation
Check that each tube(both liquid and gas
side tubes) between the indoor and
outdoor units have been properly
connected and all wiring for the test run
has been completed. Remove the service
valve caps from both the gas and the liquid
side on the outdoor unit. Note that both the
liquid and the gas side service valves on
the outdoor unit are kept closed at this
stage.
B Leak test
Outdoor unit
Manifold valve
Pressure
gauge
Lo
Hi
Connect the manifold valve(with pressure
gauges) and dry nitrogen gas cylinder to
this service port with charge hoses.
Charge hose
CAUTION
Be sure to use a manifold valve for air
purging. If it is not available, use a stop valve
for this purpose. The 3-way valve must always
be kept close.
Pressurize the system to maximum 250
P.S.I.G.(R-22 model) or 400 P.S.I.G.
(R-410A model) with dry nitrogen gas and
close the cylinder valve when the gauge
reading reached 250 P.S.I.G. (R-22 model)
or 400 P.S.I.G. (R-410A model). Next, step
is leak test with liquid soap.
CAUTION
To avoid nitrogen entering the refrigerant system in a
liquid state, the top of the cylinder must be higher than its
bottom when you pressurize the system. Usually, the
cylinder is used in a vertical standing position.
Nitrogen gas
cylinder(in vertical
standing position)
CAUTION
There is a risk of fire and explosion.
- Inert gas (nitrogen) should be used when you
check plumbing leaks, cleaning or repairs of
pipes etc.
If you are using combustible gases including
oxygen, product may have the risk of fires and
explosions.
INSTALLATION 17
CHECKING THE DRAINAGE AND FORMING THE PIPING
Checking the drainage
To remove the front panel from the indoor
A unit cabinet.
Set the air direction of louvers up-and-down to
the position(horizontally) by hand.
Remove the securing screws that retain the
front panel. Pull the lower left and right
sides of the grille toward you and lift it off.
(1TR, 1.5TR, 2TR)
Form the piping
A Form the piping by wrapping the
connecting portion of the indoor unit with
insulation material and secure it with two
kinds of vinyl tapes.
If you want to connect an additional drain
hose, the end of the drain outlet should be
routed above the ground. Secure the drain
hose appropriately.
B In cases where the outdoor unit is
installed below the indoor unit perform
the following.
Pull the right and
the left side.
Screw
Tape the piping, drain hose and
connecting cable from down to up.
Secure the tapped piping along the exterior
wall using saddle or equivalent.
Seal small openings
around pipings with a
gum type sealant.
B To check the drainage.
Pour a glass of water on the evaporator.
Ensure the water flows through the drain
hose of the indoor unit without any leakage
and goes out the drain exit.
Taping
Drain
hose
Pipings
Connecting
cable
Trap is required to prevent water
from entering into electrical parts.
In cases where the Outdoor unit is
C installed
above the Indoor unit perform
the following.
C Drain piping
The drain hose should point downward for
easy drain flow.
Downward slope
Tape the piping, and connecting cable from
down to up.
Secure the taped piping along the exterior
wall. Form a trap to prevent water entering
the room.
Fix the piping onto the wall by saddle or
equivalent.
Seal a small opening
around the pipings
with gum type sealant.
Do not make drain piping.
Trap
Accumulated
drain water
Air
Do not raise
Water
leakage
Water
leakage
Waving
Tip of drain hose
dipped in water
Water
leakage
Less than
50mm gap
Ditch
Trap
16 INSTALLATION
CONNECTING THE CABLE
BETWEEN INDOOR & OUTDOOR UNIT
Connect the cable to the
outdoor unit
Outdoor Unit
Terminal block
A Remove the control cover from the unit by
loosening the screw.
Connect the wires to the terminals on the
control board individually.
Connecting cable 1
C Refix the control cover to the original
Connecting cable 2
B Secure the cable onto the control board with
the cord clamp.
position with the screw.
Over 5mm
Cover Control
control
D Use a recognized circuit breaker 20A (12K,18K),
25A (24K) between the power source
and the unit. A disconnecting device to
adequately disconnect all supply lines must
be fitted.
Connecting Cable 1 each (Cooling only)
Connecting cable 2 each (Heat pump only)
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power circuit specifically for the air conditioner. As for
the method of wiring, be guided by the circuit diagram posted on the inside of control
cover.
2) The screw which fasten the wiring in the casing of electrical fittings are liable to come
loose from vibrations to which the unit is subjected during the course of
transportation. Check them and make sure that they are all tightly fastened. (If they
are loose, it may cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capability is sufficient.
5) The starting voltage is maintained at more than 90 percent of the rated voltage marked
on the name plate.
6) Confirm that the cable thickness is as specified in the power source specification.
(Particularly note the relation between cable length and thickness. (Refer to page 15))
7) Always install an earth leakage circuit breaker in a wet or moist area.
8) The following would be caused by voltage drop.
Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the
normal function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed
wiring and have an air gap contact separation of at least 3mm in each active(phase)
conductors.
INSTALLATION 15
CONNECTING THE CABLE
BETWEEN INDOOR & OUTDOOR UNIT
Connect the cable from
Indoor to outdoor unit.
connecting the indoor and outdoor
housing connector (male - female housing matching).
Outdoor Unit connection.
CAUTION
The power cord connected to the indoor unit should
be compiled with the following specifications
Capacity
(Btu/h)
no
Cooling model (9K,12K)
Cooling model (9K,12K,18K,24K)
(Optional)
NORMAL CROSS
-SECTIONAL AREA
1.5mm2
18K
1.0mm2
9K, 12K
24K
2.5mm2
The power connecting cable connected to the
indoor and outdoor unit should be compiled with the
following specifications
-
-
Capacity
(Btu/h)
Heat pump model
(12K,18K,24K)
NORMAL CROSS
-SECTIONAL AREA
2.5 mm2
18K,(2,3 Star)
24K
1.5 mm2
18K,(4,5 Star)
1.0mm2
9K, 12K
The connecting signal cable connected to the
indoor and outdoor unit should be compiled
with the following specifications
NORMAL
CROSS-SECTIONAL
AREA 0.75mm 2
CAUTION
If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below.
Main power source
Air
Conditioner
Circuit Breaker
Use a circuit
breaker or time
delay fuse.
14 INSTALLATION
FLARING WORK AND CONNECTION OF PIPING
Bundle the piping and drain hose together by
wrapping them with cloth tape over the range
within which they fit into the rear piping housing
section.
Pipe
Drain hose
Vinyl tape(narrow)
Connection of the
piping-Outdoor
Align the center of the pipings and
A sufficiently tighten the flare nut by hand.
Wrap with
vinyl tape(wide)
H Reroute the pipings and the drain hose across
the back of the chassis.
Piping for
passage through
piping hole
I Set the pipings and the drain hose to the back of
the chassis with the tubing holder.
Hook the edge of tubing holder to tap on chassis
and push the bottom of tubing holder to be
engaged at the bottom of chassis.
B Finally, tighten the flare nut with torque
wrench until the wrench clicks.
When tightening the flare nut with torque
wrench, ensure the direction for tightening
follows the arrow on the wrench.
kgf.cm
180~250
340~420
550~660
630~820
990~1210
N.m
17.6~24.5
33.3~41.2
53.9~64.7
61.7~80.4
97~118.6
Tubing holder
1 Hook
Outdoor unit
Gas side piping
(Bigger diameter)
2 Push
J Indoor unit installation
Remove the spacer.
Ensure that the hooks are properly seated on the
installation plate by moving it left and right.
Liquid side
piping
(Smaller
diameter)
Connecting
cable
Drain hose
Torque wrench
Press the lower left and right sides of the unit against
the installation plate until the hooks engage into their
slots(clicking sound).
INSTALLATION 13
FLARING WORK AND CONNECTION OF PIPING
C Insert the connecting cable into the indoor unit.
Don't connect the cable to the indoor unit.
Make a small loop with the cable for easy
connection later.
D Tape the drain hose and the connecting cable.
Connecting cable
kgf.cm
180~250
340~420
550~660
630~820
990~1210
N.m
17.6~24.5
33.3~41.2
53.9~64.7
61.7~80.4
97~118.6
When extending the drain hose at the indoor unit.
install the drain pipe.
Drain pipe
Indoor unit drain hose
Adhesive
E Indoor unit installation
Hang the indoor unit from the hooks at the top of
the installation plate.
Insert the spacer etc. between the indoor unit and
the installation plate and separate the bottom of
the indoor unit from the wall.
Vinyl tape(narrow)
Wrap the insulation material around the
G connecting
portion.
Overlap the connection pipe heat insulation and the
indoor unit pipe heat insulation material. Bind them
together with vinyl tape so that there is no gap.
Indoor unit
Spacer
Installation plate
8cm
F Connecting the pipings to the indoor unit and
the drain hose to drain pipe.
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Indoor
unit pipe
Connection
pipe
Vinyl tape
(wide)
Indoor unit tubing
Flare nut
Wrap with vinyl tape
Pipings
Pipe
Tighten the flare nut with a wrench.
Vinyl tape(narrow)
Spanner (fixed)
Connecting cable
Flare nut
Connection pipe
Torque wrench
Indoor unit tubing
12 INSTALLATION
FLARING WORK AND CONNECTION OF PIPING
Tighten the flare nut with a wrench.
Spanner (fixed)
Flare nut
Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Connection
pipe
Vinyl tape
(wide)
Indoor
unit pipe
Wrap with vinyl tape
Connection pipe
Torque wrench
Connecting cable
Indoor unit tubing
Pipe
kgf.cm
180~250
340~420
550~660
630~820
990~1210
N.m
17.6~24.5
33.3~41.2
53.9~64.7
61.7~80.4
97~118.6
When extending the drain hose at the indoor unit,
install the drain pipe.
Vinyl tape(narrow)
Bundle the piping and drain hose together by
wrapping them with vinyl tape over the range
within which they fit into the rear piping
housing section.
Wrap with vinyl tape
Pipe
Drain pipe
Vinyl tape(wide)
Drain hose
Indoor unit drain hose
Adhesive
For right rear piping
Vinyl tape(narrow)
A Route the indoor tubing and the drain hose to
Wrap the insulation material around the
F connecting
portion.
the required piping hole position.
Overlap the connection pipe insulation material and
the indoor unit pipe insulation material. Bind them
together with vinyl tape so that there is no gap.
Insert the piping, drain hose and the connecting
B cable
into the piping hole.
Connecting cable
Drain pipe
INSTALLATION
11
FLARING WORK AND CONNECTION OF PIPING
Connection of pipingIndoor
Preparing the indoor unit's piping and drain
hose for installation through the wall.
Remove the plastic tubing retainer (see
illustration below) and pull the tubing and
drain hose away from chassis.
Replace the plastic tubing holder in the
original position.
C Tape the tubing, drain hose and the connecting
cable. Be sure that the drain hose is located at
the lowest side of the bundle. Locating at the
upper side can cause drain pan to overflow
inside the unit.
Loop
Tubing holder
To remove the holder,
press the bottom of
chassis near the holder
upward and pull the tab
out of its hole.
Liquid side
piping
Drain hose
Gas side
piping
Connecting
cable
If the drain hose is routed inside the room,
insulate the hose with an insulation material* so
that dripping from "sweating"(condensation) will
not damage furniture or floors.
*Foamed polyethylene or equivalent is recommended.
D Indoor unit installation
CAUTION
When install, make sure
that the remaining parts
must be removed clearly
so as not to damage the
piping and drain hose,
especially power cord
and connecting cable.
Hook the indoor unit onto the upper portion of
the installation plate.(Engage the two hooks of
the rear top of the indoor unit with the upper
edge of the installation plate.) Ensure that the
hooks are properly seated on the installation
plate by moving it left and right
For left rear piping
Connecting
cable
A Route the indoor tubing and the drain hose
in the direction of rear left.
Drain hose
Press the lower left and right sides of the
unit against the installation plate until the
hooks engage into their slots (clicking-sound).
Connecting the pipings to the indoor unit and
E drain hose to drain pipe.
Drain hose
B Insert the connecting cable into the indoor
unit from the outdoor unit through the
piping hole.
Do not connect the cable to the indoor unit.
Make a small loop with the cable for easy
connection later.
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Indoor unit tubing
Flare nut
Pipings
10 INSTALLATION
FLARING WORK AND CONNECTION OF PIPING
Flaring work
D Flaring work
Main cause for gas leakage is due to defect
in flaring work. Carry out correct flaring work
in the following procedure.
Carry out flaring work using flaring tool as shown
below.
A Cut the pipes and the cable
ø6.35
1/4"
1.1~1.3
0.7
ø9.52
3/8"
1.5~1.7
0.8
Outside diameter
mm
inch
90°
mm
ø12.7
1/2"
1.6~1.8
0.8
5/8"
1.6~1.8
1.0
ø19.05
3/4"
1.9~2.1
1.0
Firmly hold copper pipe in a die in the
dimension shown in the table above.
Handle
Bar
Copper
pipe
Thickness
ø15.88
"A"
Use the piping kit accessory or the pipes
purchased locally.
Measure the distance between the indoor
and the outdoor unit.
Cut the pipes a little longer than measured
distance.
Cut the cable 1500mm longer than the pipe
length.
A
mm
Bar
Yoke
Slanted Uneven Rough
Cone
Copper pipe
Clamp handle
B Burrs removal
Completely remove all burrs from the cut E
cross section of pipe/tube.
Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Red arrow mark
Check
Compare the flared work with figure below.
If flare is noted to be defective, cut off the flared
section and do flaring work again.
Smooth all round
Pipe
Inside is shiny without scratches.
Reamer
= Improper flaring =
Point down
C Putting nut on
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.
(not possible to put them on after flaring
work)
Flare nut
Copper tube
Even length
all round
Inclined Surface Cracked Uneven
damaged
thickness
INSTALLATION
9
INSTALLATION OF INDOOR & OUTDOOR UNIT
How to fix installation plate
The wall you select should be strong and solid
enough to prevent vibration.
A
Mount the installation plate on the wall with
four type “A” screws. If mounting the unit on a
concrete wall, use anchor bolts.
Mount the installation plate horizontally by
aligning the centerline using a level.
Drill a hole in the wall
Drill the piping hole with a ø70mm hole core
drill. Drill the piping hole at either the right or
the left with the hole slightly slanted to the
outdoor side.
WALL
Indoor
Outdoor
5-7mm
(0.2~0.3")
CAUTION
Make sure that the drilled hole in the wall is
properly sealed (using a proper sealant, for
example cement, plaster of paris etc.) after
passing the installation pipe, drainage pipe
and the inter connecting cable.
Type “A” Screw
B
Measure the wall and mark the centerline. It
is also important to use caution concerning
the location of the installation plate-routing of
the wiring to power outlets is through the
walls typically. Drilling the hole through the
wall for piping connections must be done
safely.
Usage of Drain Pan
(Heat Pump)
Drain pan along with drain pipe (as
shown below) can be used to drain
the water accumulated in the outdoor
during the Heat Mode.
Outdoor Unit
Left rear piping
"D"
Right rear piping
"C"
Hole center
ø70mm
Drain Pan
Drain Pipe
8
INSTALLATION
INSTALLATION OF INDOOR & OUTDOOR UNIT
Read completely, then follow step by step.
Select the best location
A Indoor Unit
Do not have any heat or steam near the
unit.
Select a place where there are no
obstacles in front of the unit.
Make sure that condensation drainage
can be conveniently routed away.
Do not install near a doorway.
Ensure that the space around the left and
right of the unit is more than 100mm. The
unit should be installed as high on the
wall as possible, allowing a minimum of
200mm from ceiling.
Use a stud finder to locate studs to
prevent unnecessary damage to the wall.
Rooftop Installation
If the outdoor unit is installed on a roof structure, be
sure to level the unit. Ensure the roof structure and
anchoring method are adequate for the unit location.
Consult local codes regarding rooftop mounting.
Piping length and elevation
Capacity
(Btu/h)
9K
More than 200mm
Pipe Size
GAS LIQUID
3/8"
1/4"
9K, 12K,
18K (2,3 star) 1/2" 1/4"
18K Heat Pump
18K (5 star)
24K Cooling
More than 100mm
5/8" 1/4"
24K
Cooling & Heat Pump 5/8" 3/8"
Max.
length
20
3 to 5
20
3 to 5
A (m)
Standard
Length
(m)
3 to 5
3 to 5
20
20
Additional
Refrigerant
(g/m)
20
20
30
30
Outdoor unit
More than 2300mm
More than 100mm
CAUTION
A
Install the indoor unit on the wall where the height
from the floors more than 2300 mm.
Indoor unit
B Outdoor Unit
If an awning is built over the unit to
prevent direct sunlight or rain exposure,
make sure that heat radiation from the
condenser is not restricted.
Ensure that the space around the back
and sides is more than 300mm. The front of
the unit should have more than 700mm of
space.
Do not place animals and plants in the
path of the warm air.
Take the air conditioner weight into
account and select a place where noise
and vibration are minimum.
Select a place so that the warm air and
noise from the air conditioner do not
disturb neighbors.
Outdoor unit
A
Oil trap
Indoor unit
B
In case more than 5m
CAUTION
Capacity is based on standard length and maximum
allowance length is on the basis of reliability.
Oil trap should be installed every 5~7 meters.
INSTALLATION PARTS
7
Installation Tools
S.No.
Required Tools
Gas-Leak Detector
9
Hexagonal Wrench
8
Spanner (Half Union)
7
Specified torque wrenches 1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m
(Different depending on model no.)
6
Flaring Tool Set
5
Hole Core Drill (Dia-70mm)
4
Electric Drill
3
Screw Driver
2
Level Gauge
1
Thermometer
12
Gauge Manifold
11
Vacuum Pump
10
6
INSTALLATION PARTS
INSTALLATION PARTS
Installation parts provided with the unit
Name
Quantity
1
Drain Hose*
1
Holder Remote Control
2
Type ‘B’ Screw
1
Installation Plate
5
Type ‘A’ Screw
Shape
Others
The actural part can be changed
according to the type of model.
• Owner’s Manual
• Installation Manual
*some of the Installation parts may not be provided , depending on the models .
Installation parts you must purchase
Name
Shape
Others
Sleeve
Installationpartsyou
mustpurchase
Bushing Sleeve
Installation plate
Sleeve
Bushing-Sleeve
Putty(Gum Type Sealant)
Putty (Gum type sealant)
Bend the pipe as closely
on the wall as possible,
but be careful that it
doesn't break.
(Left and right
are identical)
Vinyl tape (Wide)
• Owner’s
Manual
• Installation
Manual
Air filter
Vinyl tape (Wide)
Gas side piping
Saddle
Liquid side piping
Additional drain pipe
Apply after carrying out a
drainage test.
To carry out the drainage
test, remove the air filters
and pour water into the heat
exchanger.
Gas side piping
Liquid side piping
Additional drain pipe
Vinyl tape
Vinyl tape
Connecting cable: Cooling & Heat pump: 2EA
Cooling only: 1EA
Saddle
SAFETY INSTRUCTIONS
5
Always check for gas (refrigerant) leakage after installation or repair of product.
- Low refrigerant levels may cause failure of product or may effect product performance.
to neighbours.
not cause
neighbours.
4
SAFETY INSTRUCTIONS
Do not turn ON the MCB/Breaker or power under condition of front panel, cabinet, top cover,
control box cover are removed or opened. Otherwise, it may cause fire, electric shock,
explosion or death.
3
Avoid excessive cooling
reduce the cooling/ dehumidication functions.
(Refer page no. 19 and 20 details of owner's manual).
INSTALLATION PARTS
6
IMPORTANT SAFETY INSTRUCTIONS
4
TIPS FOR SAVING ENERGY
3
6 Installation Parts provided with the Unit
6 Installation Parts you must purchase
7 Installation Tools
8
INSTALLATION
8-9 Installation of Indoor & Outdoor Unit
10-14 Flaring Work and Connection of Piping
10 Flaring Work
11 Connection of piping-Indoor
11 For left rear piping
12 For right rear piping
14 Connection of piping-Outdoor
15-16 Connecting the cable between indoor
and outdoor unit
17 Checking the drainage and forming the
piping
18 Air purging
20 Test running
21 Installation guide at the seaside
INSTALLATION MANUAL
ROOM AIR
CONDITIONER
Please read this installation manual completely before
installing the product and retain it for future reference.
TYPE : WALL MOUNTED
For Split AC Domestic Models
P/No. MFL39754865_V4
MFL39754865
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