LG Electronics Air Conditioner LS090CPAS C0914DH0 User Manual |
Internal Use Only
LG Room Air Conditioner
SVC MANUAL(Exploded View)
MODELS : LS090CP(AS-C0914DH0)
LS120CP(AS-C121E1H0)
LS180CP(AS-C1835DM0)
LS240CP(AS-C2435DM0)
LS090HP(AS-H091E1H0)
LS120HP(AS-H121E1H0)
LS180HP(AS-H1835DM0)
LS240HP(AS-H2435DM0)
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
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Safety Precautions
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.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
■ Installation
Do not use damaged power
cords, plugs, or a loose socket.
For electrical work, contact the
dealer, seller, a qualified electri-
cian, or an Authorized Service
Center.
Always use the power plug and
socket with the ground terminal.
• There is risk of fire or electric
shock.
• There is risk of fire or electric
shock.
• There is risk of electric shock.
Install the panel and the cover of Do not modify or extend the
Do not install, remove, or re-
install the unit by yourself (cus-
tomer).
control box securely.
power cord.
• There is risk of fire or electric
shock.
• There is risk of fire or electric
shock.
• There is risk of fire, electric
shock, explosion or injury.
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Safety Precautions
Be cautious when unpacking
and installing the product.
For installation, always contact
the dealer or an Authorized
Service Center.
Do not install the product on a
defective installation stand.
• Shape edges could cause injury.
Be especially careful of the sharp
edges.
• There is risk of fire, electric
shock, explosion, or injury.
• It may cause injury, accident, or
damage to the product.
Be sure the installation area
does not deteriorate with age.
Install the indoor unit on the
wall where the height from the
floors more then 8ft(2.4m)
Do not handle the pipe by your-
self(customer)
• If the base collapses, the air con-
ditioner could fall with it, causing
property damage, product failure,
and personal injury.
• There are sharp moving parts
that could cause personal injury.
• High-Pressure refrigent may
cause personal injury.
8ft(2.4m)
■ Operation
Use a dedicated outlet for this
appliance.
Grasp the plug to remove the
cord from the outlet. Do not
touch it with wet hands.
Do not allow water to run into
electric part.
• There is risk of fire or electric
shock.
• There is risk of fire or electric
shock.
• There is risk of fire, failure of the
product, and/or electric shock.
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Safety Precautions
Do not place a heater or other
appliances near the power
cable.
Do not let the air conditioner run Do not store of use flammable
for a long time when the humidi- gas or combustibles near the air
ty is very high and a door or a
window is left open.
conditioner.
•
There is risk of fire, failure of the
product, and/or electric shock.
• Moisture may condense and wet
or damage furnishings.
• There is risk of fire or product fail-
ure.
Do not use the product in a
tightly closed space for a long
time.
When flammable gas leaks, turn off
the gas and open a window for venti-
lation before turning the product on.
Do not use the telephone or turn
switches on or off.
Unplug the unit if strange
sounds odors or smoke comes
from it.
• Oxygen deficiency could occur.
• Some ventilation by opeing win-
dow is necessary for the fresh air.
• There is risk of explosion or fire.
•
There is risk of fireproduct failure
and/or electric shock.
Stop operation and close any
window in storm or hurricane.
before the hurricane arrives.
Do not open the inlet grill of the
product during operation. (Do
not touch the electrostatic filter,
if the unit is so equipped.)
When the product is soaked
(flooded or submerged), contact
an Authorized Service Center.
• There is risk of property damage, • There is risk of physical injury,
• There is risk of electrical shock.
failure of product, or electric
shock.
electric shock, or product.
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Safety Precautions
Ventilate the product from time
to time when operating it togeth- performing cleaning or mainte-
er with a stove, etc.
Unplug the appliance before
When the product is not be used
for a long time disconnect the
power supply plug or turn off
the breaker.
nance.
• There is risk of fire or electrical
shock.
• There is risk of electric shock.
• There is risk of product damage
or failure, or unintended opera-
tion.
■ Installation
Take care to ensure that nobody
could step on or fall onto the
outdoor unit.
Do not insert hands or other
objects through the air inlet or
outlet while the air conditioner
is plugged in.
Always check for gas(refriger-
ant) leakage after installation or
repair of product.
• There could result in personal
injury and product damage.
• There are sharp and moving
parts that could cause personal
injury.
• Low refrigerant levels may cause
product failure.
Install the drain hose to ensure
that water is drained away prop-
erly.
Keep level even when installing
the product.
Do not install the product where
the noise or hot air from the out-
door unit could damage the
neighborhoods.
• A bad connection may cause
water leakage.
• To avoid vibration or water leak-
age.
• It may cause a problem for your
neighbors.
90˚
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Safety Precautions
■ Operation
Use two or more people to lift
and transport the air conditioner it will be exposed to sea wind
(salt spray) directly.
Do not install the product where
Do not direct airflow at room
occupants.
• Avoid personal injury.
• It may cause corrosion in the
product. Corrosion, particularly
on the condenser and evaporator
fins, could cause product mal-
function or inefficient operation.
• This could damage your health.
Do not use the product for special Do not block the inlet or outlet
Use a soft cloth to clean.
Do not use harsh detergents,
solvents, etc.
purposes, such as preserving
foods, works of art, etc. It is a
consumer air conditioner, not a
precision refrigeration system.
of air flow.
• There is risk of damage or loss of • It may cause product failure.
property.
• There is risk of fire, electric shock
or damage to the plastic parts of
the product.
Do not touch the metal parts of
the product when removing the
air filter. They are very sharp!
Do not step on or put anything
on the product. (outdoor unit)
Always insert the filter securely.
Clean the filter every two weeks
or more often if necessary.
• There is risk of personal injury.
• There is risk of personal injury
and failure of product.
• A dirty filter reduces the efficien-
cy of the air conditioner and
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Dimensions
Do not drink the water drained
from the unit.
Use a firm stool or ladder when
cleaning or maintaining the air
conditioner.
Replace all the batteries in the
remote.
• Be careful and avoid personal
injury.
• There is risk of fire or explosion.
• It is not sanitary and could cause
serious health issues.
■ Disuse
Do not recharge or disassemble the batteries. Do
not dispose of batteries in a fire.
If the liquid from the batteries gets onto your skin
or clothes, wash it well with clean water. Do not
use the remote if the batteries have leaked.
• They may burn or explode.
• The chemicals in batteries could cause burns or
other health hazards.
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Dimensions
Dimensions
Symbols Used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Indoor Unit
H
D
W
Installation plate
Model
9 Btu Series
(C/O)
9 Btu Series
(H/P)
12 Btu Series
Dimension
W
H
mm(inch)
mm(inch)
mm(inch)
840(33.1)
270(10.6)
153(6.0)
894(35.2)
295(11.6)
165(6.5)
894(35.2)
295(11.6)
165(6.5)
D
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Dimensions
H
D
W
Installation plate
Model
18 Btu Series
24 Btu Series
Dimension
W
H
mm(inch)
mm(inch)
mm(inch)
1090(42.9)
300(11.8)
178(7.0)
1090(42.9)
300(11.8)
178(7.0)
D
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Dimensions
Outdoor Unit
1. 9k, 12k
L2
W
L3
Gas side
(3-way valve)
Liquid side
(2-way valve)
MODEL
unit
9k, 12k
DIM
W
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
770(30.3)
540(21.3)
245(9.6)
287(11.3)
64(2.5)
H
D
L1
L2
L3
L4
L5
518(20.4)
10(0.4)
100(3.9)
- 11 -
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Dimensions
2. 18k, 24k
W
L6
L5
L7
L8
MODEL
18k, 24k
DIM
W
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
mm(inch)
870(34.3)
655(25.8)
320(12.6)
370(14.6)
25(1.0)
H
D
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
630(24.8)
25(1.0)
546(21.5)
162(6.4)
162(6.4)
54(2.1)
74.5(2.9)
79(3.1)
- 12 -
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Introduction
Introduction
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 condi-
tioner.
This symbol indicates special notes.
NOTICE
Features
Air Inlet
Air Filter
Front Panel
Signal Receptor
Air Intake Vents
Connecting
Wires
Connecting
Wires
Air Intake
Vents
Piping
Piping
Air Outlet
Vents
Drain Hose
Drain Hose
Air Outlet Vents
Base Plate
Base Plate
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Installation
Installation
Read carefully, and then follow step by step.
Installation Parts
Installation plate
Type "A" screw and plastic anchor
Remote Control Holder
Type "B" screw
Installation Tools
Figure
Name
Figure
Name
Screw driver
Ohmmeter
Electric Drill
Hexagonal wrench
Measuring Tape, Knife
Hole Core Drill
Ammeter
Gas Leak Detector
Thermometer,
Level
Spanner
Torque wrench
Flaring Tool Set
- 14 -
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Installation
Installation Map
NOTICE
Installation parts you should purchase.
Installation Plate
Sleeve
Bushing-Sleeve
Putty(Gum Type Sealer)
Bend the pipe as closely
on the wall as possible,
but be careful that it
doesn't break.
Air Discarge
Vertical Air deflector
Operation Indication Lamps/
Signal Receptor
Vinyl tape(Wide)
• Apply after carrying out a
drainage test.
• To carry out the drainage
test, remove the air filters
and pour water into the heat
exchanger.
Forced Operation Button
Saddle
Gas side piping
Air Inlet Vents
Liquid side piping
Additional drain pipe
Air Outlet Vents
Drain Hose
Connecting cable
Base Plate
NOTE: refrigerant line wall thickness must be at least 0.8 mm (0.031 inch)
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Installation
Confirm The Refrigerant
1. Check the quality label on the indoor and outdoor unit.
2. Make certain that the refrigerant is R-410A.
NOTICE
THIS PRODUCT CONTAINS R-410A REFRIGERANT
1) Different compressor oil
- R-410A(Polyol ester) / R-22(Mineral).
- Do not mix the existing mineral oil.
- Do not apply used pipe, tools and gauges covered with the existing mineral oil.
2) Absorption of moisture
-Compressor’s oil has the high absorption rate of moisture.
3) Composition
- R-410A(R32:R125=50:50wt%).
NOTE: Never mix with other refrigerants
Example : Split type 12,000 Btu/h
120
100
93
100
80
60
40
20
89
84
76
0
R-410A
R-22
100%
70%
50%
30%
0%
0%
30%
50%
70% 100%
4) High pressure.
- 1.6 times higher than R-22.
- High Pressure refrigerant may cause personal injury.
Boiling Pt.(°C)
Vapor pressure(25°C)(kg f/cnf)
Vapor density(25°C)(kg/m2)
R-410A
R-22
-51.4
-40.8
15.9
9.6
64
44.4
Do not handle the pipe by yourself (customer) High-pressure refrigerant may cause personal injury.
- manifold gauge ,charging and any piping tools must be dedicated to R-410A systems.
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Installation
Select The Best Location
6. Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
Indoor unit
1. Do not have any heat or steam near the unit.
2. Select a place where there are no obstacles in
front of the unit.
More than
12cm(4.7in)
3. Make sure that condensation drainage can be
conveniently routed away.
More than
30cm(11.8in)
4. Do not install near a doorway.
More than
30cm(11.8in)
5. Ensure that the space around the left and right
of the unit is more than 30cm(11.8in). The unit
should be installed as high on the wall as possi-
ble, allowing a minimum of 12cm(4.7in) from
ceiling.
More than 8ft(2.4m)
Install the indoor unit on the wall where the height from the floors more than 2.3meters(7.6ft).
A minimum pipe run of 7.5meters(24.6ft) is required to minimize vibration and excessive noise.
Outdoor unit
5. Select a place so that the warm air and noise
from the air conditioner do not disturb neigh-
bors.
1. 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.
2. Ensure that the space around the back and
sides is more than 10cm(3.9in). The front of the
unit should have more than 70cm(27.6in) of
space.
More than
60cm(23.6in)
More than
More than
10cm(3.9in)
10cm(3.9in)
3. Do not place animals and plants in the path of
the warm air.
4. Take the air conditioner weight into account and
select a place where noise and vibration are
minimum.
More than
More than
70cm(27.6in)
60cm(23.6in)
Rooftop Installations
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.
If the outdoor unit is installed on roof structures or walls, this may result in excessive noise and vibra-
tion, and may be also classed as non serviceable installation.
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Installation
Piping Length And Elevation
Standard
Max.
Max.
Pipe Size
Additional Refrigerant
g/m(oz/ft)
Capacity
Length
Elevation
length
(Btu/h)
9k(C/O)
Suction
3/8"
Evap
1/4"
1/4"
1/4"
1/4"
m(ft)
B
m(ft)
A
m(ft)
15(49)
15(49)
30(98)
30(98)
7.5(25)
7.5(25)
7.5(25)
7.5(25)
7.5(25)
7.5(25)
15(49)
15(49)
20(0.22)
20(0.22)
20(0.22)
30(0.32)
9k(H/P), 12k
18k(C/O)
1/2"
1/2"
18k(H/P), 24k
5/8"
Outdoor unit
Outdoor unit
A
Oil trap
A
Indoor unit
Indoor unit
B
B
In case more than 5m(16.4ft)
• Capacity is based on standard length and maximum allowance length is on the basis of reliability.
• Oil trap should be installed every 5~7meters (16.4~23.0ft).
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Installation
How To Mount Installation Plate
The wall you select should be strong and solid enough
to prevent vibration
Installation Plate
1. Mount the installation plate on the wall with
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.
Chassis
Hook
Type “A”
2. Measure the wall and mark the centerline. It is also important to use caution concerning the location of the instal-
lation 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.
Distance (mm)
CHASSIS
(Grade)
A
B
C
59
D
S4
SE
S5
50
65
95
105
110
122
105
110
122
85
Installation plate
B
D
235
A
C
Ø70mm
Ø70mm
Left rear piping
Right rear piping
Drill a Hole In The Wall
• Drill the piping hole with a ø70mm(2.76in) hole
core drill. Drill the piping hole at either the right
or the left with the hole slightly slanted to the out-
door side.
WALL
Indoor
Outdoor
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Installation
Flaring Work
Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the follow-
ing procedure.
Cut the pipes and the cable.
1. Use the piping kit accessory or the pipes purchased
locally.
2. Measure the distance between the indoor and the out-
Copper
pipe
Slanted Uneven Rough
90°
door unit.
3. Cut the pipes a little longer than measured distance.
4. Cut the cable 1.5m(59.1in) longer than the pipe length.
Burrs removal
Pipe
1. Completely remove all burrs from the cut cross section
of pipe/tube.
Reamer
2. Put the end of the copper tube/pipe in a downward
direction as you remove burrs in order to avoid drop-
ping burrs into the tubing.
Point down
Putting nut on
Flare nut
• Remove flare nuts attached to indoor and outdoor unit,
then put them on pipe/tube having completed burr
removal.
Copper tube
(not possible to put them on after flaring work)
Flaring work
• Carry out flaring work using flaring tool as shown below.
Firmly hold copper pipe in a die in the dimen-
sion shown in the table above.
Outside diameter
A
Handle
mm
inch
1/4
3/8
1/2
5/8
mm
inch
Ø6.35
Ø9.52
Ø12.7
Ø15.88
0~0.5
0~0.5
0~0.5
0~1.0
0~0.020
0~0.020
0~0.020
0~0.039
Bar
Bar
Yoke
Cone
Copper pipe
Clamp handle
Red arrow mark
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Installation
Connecting The Piping
Indoor
1. Prepare the indoor unit's piping and drain hose for installation through the wall.
2. Remove the plastic tubing retainer(see the illus-
tration by) and pull the tubing and drain hose
away from chassis.
3. Replace only the plastic tubing holder 1, not the
holder 2 in the original position.
For left rear piping
Route the indoor tubing and the drain
hose in the direction of rear left.
1
2
Connecting
cable
Insert the connecting cable into the indoor unit
from the outdoor unit through the piping hole.
Drain pipe
• Do not connect the cable to the indoor unit.
• Make a small loop with the cable for easy con-
nection later.
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.
NOTICE
If the drain hose is routed inside the room, insu-
late the hose with an insulation material* so that
dripping from "sweating"(condensation) will not
damage furniture or floors.
*Foamed polyethylene or equivalent is recom-
mended.
Indoor unit
Spacer
Indoor unit installation
• Hook the indoor unit onto the upper portion of
the installation plate.(Engage the three hooks of
the rear top and rear lower of the indoor unit with
Installation plate
8cm
the upper edge and lower edge of the installation
plate.) Ensure that the hooks are properly seated
on the installation plate by moving it left and
right.
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Installation
Connecting the pipings to the indoor unit
and drain hose to drain pipe.
Wrap the insulation material around the
connecting portion.
• Put a couple drops of refrigerant oil on the face
of the flare before assembling taking care not to
add any contaminants.
• Overlap the connection pipe insulation material
and the indoor unit pipe insulation material. Bind
them together with vinyl tape so that there is no
• Align the center of the pipings and sufficiently
tighten the flare nut by hand.
gap.
Plastic bands
Insulation material
Indoor unit tubing
Flare nut Pipings
• Tighten the flare nut with a wrench.
• Wrap the area which accommodates the rear piping
housing section with vinyl tape.
Indoor unit tubing
Torque wrench
Connection pipe
Indoor
unit pipe
Connection
pipe
Flare nut
Vinyl tape
(wide)
Wrap with vinyl tape
Spanner (fixed)
Connecting cable
Outside diameter
Torque
mm
inch
Pipe
Ø6.35
Ø9.52
Ø12.7
Ø15.88
1/4
3/8
1/2
5/8
1.8
4.2
5.5
6.6
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.
• Mount the clamp on the boss with a type "B"
screw.(SE-H/P: 9k, 12k C/O: 12k)
Wrap with vinyl tape
Type "B" screw
Clamp
Drain hose
Boss
Pipe
Vinyl tape(wide)
Drain hose
• When extending the drain hose at the indoor
unit, install the drain pipe.
For right rear piping
Route the indoor tubing and the drain
hose to the required piping hole position.
Drain pipe
Indoor unit drain hose
Vinyl tape(narrow)
Adhesive
Drain hose
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Installation
Insert the connecting cable into the indoor
unit.
Spanner (fixed)
Flare nut
• Don't connect the cable to the indoor unit.
• Make a small loop with the cable for easy con-
nection later.
Connection pipe
Torque wrench
Indoor unit tubing
Tape the drain hose and the connecting cable.
Outside diameter
Torque
• Connecting cable
Ø6.35
Ø9.52
Ø12.7
Ø15.88
1/4
3/8
1/2
5/8
1.8
4.2
5.5
6.6
Tape
Connecting
pipe
• Mount the clamp on the boss with a type "B"
screw.(SE-H/P: 9k, 12k C/O: 12k)
Drain hose
Connecting cable
Type "B" screw
Clamp
Drain hose
Indoor unit installation
Boss
• Hook the indoor unit onto the upper portion of
the installation plate.(Engage the three hooks of
the rear top and rear lower of the indoor unit with
the upper edge and lower edge of the installation
plate.) Ensure that the hooks are properly seated
on the installation plate by moving it left and
right.
• When extending the drain hose at the indoor
unit, install the drain pipe.
Drain hose
Connecting
cable
Indoor unit drain hose
Drain hose
Vinyl tape (narrow)
Adhesive
Connecting the pipings to the indoor unit
and the drain hose to drain pipe.
Wrap the insulation material around the
connecting portion.
• Put a couple drops of refrigerant oil on the face
of the flare before assembling taking care not to
add any contaminants
• 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.
• Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Plastic bands
Insulation material
Indoor unit tubing
Flare nut Pipings
• Tighten the flare nut with a wrench.
- 23 -
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Installation
• Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Reroute the pipings and the drain hose
across the back of the chassis.
Indoor
unit piping
Connection
pipe
Vinyl tape
(wide)
Wrap with vinyl tape
Pipe
Piping for
passage through
piping hole
Vinyl tape(narrow)
Connecting cable
Reroute the pipings and the drain hose
across the back of the chassis.
Connecting
cable
• 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.
Drain hose
Pipe
Drain hose
Vinyl tape(narrow)
Wrap with
vinyl tape(wide)
- 24 -
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Installation
Installation Information. For left piping. Follow the instruction below.
Correct case
• Press on the upper side of clamp and unfold the tubing to downward slowly.
Incorrect case
• Following bending type from right to left may cause damage to the tubing.
- 25 -
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Installation
Connection Of The Drain Hose
• The drain hose can be connected at two different
positions. Use the most convenient position and, if
necessary, exchange the position of the drain pan,
rubber cap and the drain hose.
2
4
■■Drain pan
3
■■Rubber cap
■■Drain hose
1
■■Exchange if necessary
• Remove the drain hose.
• Securely insert both the rubber plug and drain hose
into the drain outlets.
Be sure the rubber the cap is securely fastened so
that there is no leakage.
Connection Of Piping -Outdoor
Put a couple drops of refrigerant oil on
the face of the flare before assembling
taking care not to add any contaminants.
Outdoor unit
Suction Line piping
(Bigger diameter)
Align the center of the pipings and suffi-
ciently tighten the flare nut by hand.
Evaporator Line
piping
(Smaller
diameter)
Finally, tighten the flare nut with torque
wrench until the wrench clicks.
Torque wrench
• When tightening the flare nut with torque
wrench, ensure the direction for tightening fol-
lows the arrow on the wrench.
Outside diameter
Torque
mm
inch
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
1/4
3/8
1/2
5/8
3/4
1.8
4.2
5.5
6.6
6.6
- 26 -
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Installation
Connection Of The Cable
1. Remove the cover control from the unit
by loosening the 3 screws.
Wiring Diagram
Connecting cable(Low voltage)
b
Indoor Unit
Outdoor Unit
2. Dismount caps on the conduit panel.
Terminal
(4P)
Terminal
(6P)
3. Temporarily mount the conduit tubes
on the conduit panel.
1
2
3
4
1
2
3
4
Power supply
a
4. Properly connect both the power sup-
ply and low voltage lines to the corre-
sponding terminals on the terminal
block.
5
L1*
6
L2
To
branch
G
circuit
5. Ground the unit in accordance with
local codes.
Ground
L1 is neutral for 115V models.
*
6. Be sure to size each wire allowing sev-
eral inches longer than the required
length for wiring.
NOTICE
1.
shows field wiring.
2. Separately wire the high and low voltage line.
7. Use lock nuts to secure the conduit
tubes.
3. Use heat-proof electrical wiring capable of
withstanding temperatures up to 167°F.
4. Use outdoor and waterproof connection cable
rated more than 300V for the connection
between indoor and outdoor unit.
NOTICE
Connector trade size for this unit is 1/2" for
instructions on connecting depending on
the wire type you are using.
(For example, Type STOW)
Outdoor unit
Terminal block
• Be sure to comply with local codes while
running the wire from the indoor unit to
the outdoor unit(size of wire and wiring
method, etc).
Over 5mm
(0.2")
Conduit panel
Connecting
cable
• Every wire must be connected firmly.
• No wire should be allowed to touch refrig-
erant tubing, the compressor or any mov-
ing parts.
Power supply
cord
Cover control
Power Supply
Fuse or breaker
Capacity
AWG(MIN.)
Model Power source
9K
1ø, 115V
1ø, 115V
14
14
18
18
18
18
15A
20A
20A
25A
12K
18K 1ø, 230/208V 14
24K 1ø, 230/208V 12
- 27 -
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Installation
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 could
cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capacity is sufficient.
5) Confirm that the starting voltage is maintained at more than 90 percent of the rated volt-
age 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.
7) Always install an GFCI 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, open fuse, 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(0.12in) in each
active(phase) conductors.
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Installation
Checking The Drainage
• Pour a glass of water on the drain pan.
• Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the
drain exit.
Connecting area
drain hose
Leakage
checking
Drain pan
Drain
hose
Leakage
checking
Drain piping
• The drain hose should point downward for easy drain flow.
Downward slope
• Avoid these situations.
Accumulated
drain water
Do not raise
Less than
50mm gap
Tip of drain hose
dipped in water
Air
Water
leakage
Water
leakage
Water
leakage
Waving
Ditch
- 29 -
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Installation
Forming The Piping
In cases where the Outdoor unit is
installed above the Indoor unit perform
the following.
Form the piping by wrapping the connect-
ing portion of the indoor unit with insula-
tion material and secure it with two kinds
of vinyl tapes.
• Tape the piping and connecting cable from
down to up.
• 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 appro-
priately.
• 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 equiva-
lent.
In cases where the outdoor unit is
installed below the indoor unit perform the
following.
Seal a small opening
around the pipings
with gum type sealer.
Trap
• 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 sealer.
Trap
Taping
Drain
hose
Pipings
Connecting
cable
Trap is required to prevent water
from entering into electrical parts.
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Installation
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 noncondensables and moisture from the system.
Air purging With Vacuum Pump
Preparation
• Do a leak test of all joints of the tubing(both
• Check that each tubing(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.
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.
Leak test
• Connect the manifold valve(with pressure gauges)
and dry nitrogen gas cylinder to this service port
with charge hoses.
Manifold valve
Pressure
Indoor unit
gauge
Lo
Hi
Be sure to use a manifold valve for air purging. If it
is not available, use a stop valve for this purpose.
The "Hi" knob of the manifold valve must always be
kept close.
Charge hose
Outdoor unit
Nitrogen gas
cylinder(in vertical
standing position)
• Pressurize the system to no more than 150
P.S.I.G. with dry nitrogen gas and close the cylin-
der valve when the gauge reading reached 150
P.S.I.G. Next, test for leaks with liquid soap.
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.
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Installation
Soap water method
(1) Remove the caps from the gas side and liquid side
valves.
Suction Line
(2) Remove the service-port cap from the gas side
valve.
(3) To open the gas side valve turn the valve stem
counterclockwise approximately 90°, wait for about
2~3 seconds, and close it.
(4) Apply a soap water or a liquid neutral detergent on
the indoor unit connection or outdoor unit connec-
tions by a soft brush to check for leakage of the con-
necting points of the piping.
Evaporator Line
3-way valve
(Close)
3-way valve
(Open)
(5) If bubbles come out, the pipes have leakage.
Cap
Evacuation
Hexagonal wrench
• 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.
Indoor unit
The operation time for evacuation varies with tub-
ing length and capacity of the pump. The follow-
ing table shows the time required for evacuation.
Required time for evacuation when 30 gal/h vac-
uum pump is used
if tubing length is longer
than 10m (33 ft)
If tubing length is less
than 10m (33 ft)
Outdoor unit
10 min. or more
15 min. or more
• When the desired vacuum is reached, close the
"Lo" knob of the manifold valve and stop the vac-
uum pump.
Finishing the job
• With a service valve wrench, turn the valve stem
of liquid side valve counter-clockwise to fully
open the valve.
Manifold valve
Pressure
gauge
• Turn the valve stem of gas side valve counter-
clockwise to fully open the valve.
Lo
Hi
• Loosen the charge hose connected to the gas
side service port slightly to release the pressure,
then remove the hose.
Open
Close
• 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.
Vacuum pump
This completes air purging with a vacuum pump.
The air conditioner is now ready to test run.
- 32 -
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Installation
Charging
■ Each outdoor unit is factory charged (nameplate charge) for the evaporator as well as a 7.5m(25ft)
line set. Any time a line set is used either shorter or longer then the nominal 7.5m(25ft) line set
length the refrigerant charge has to be adjusted.
■ Whether the line set is made shorter or longer you must adjust the charge based on how many ft of
tubing are either added or removed based on 30g(0.32oz) of R-410A per meter(foot).
Standard Max.
Length Elevation
Max.
length Refrigerant
m(ft) g/m(oz/ft)
Additional
Pipe Size
Capacity
(Btu/h)
Suction Evap
m(ft)
B
m(ft)
A
9k
3/8" 1/4" 7.5(25) 7.5(25) 15(49) 20(0.22)
3/8"(1/2") 1/4" 7.5(25) 7.5(25) 15(49) 20(0.22)
1/2" 1/4" 7.5(25) 15(49) 30(98) 20(0.22)
5/8" 1/4" 7.5(25) 15(49) 30(98) 20g(0.22)
5/8" 1/4" 7.5(25) 15(49) 30(98) 30g(0.32)
12k
18k
24k
30k
Example: A 30ft line set is used
5 additional ft X 0.22 ounce per foot= add 1.1 ounces of R-410A
Important:
If you are ever uncertain of the unit charge, reclaim, evacuate and weigh in the correct charge using the
unit nameplate charge adjusting for line sets longer or shorter than 7.5m(25ft).
Confirm the refrigerant R-410A. Use manifold gauge and hose for R-410A.
- 33 -
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Test Running
Test Running
1. Check that all tubing and wiring have been
properly connected.
2. Measure the temperature of the intake and discharge
of air.
2. Check that the gas and liquid side service
valves are fully open.
3. Ensure the difference between the intake tem-
perature and the discharge is more than
46.4°F(8°C) (Cooling) or (Heating).
Prepare remote control
Intake temperature
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.
Discharge
temperature
3. Reattach the cover by
pushing it back into position.
4. For reference; the gas side pressure of optimum
condition is as below.(Cooling)
NOTE:
• Use 2 AAA(1.5volt) batteries. Do not use
rechargeable batteries.
Outside ambient TEMP.
The pressure of the gas side service valve
95°F(35°C)
8.5~9.5kg/cm2 G(120~135 P.S.I.G.)
• Remove the batteries from the remote control if
the system is not going to be used for a long
time.
NOTE: If the actual pressure are higher than
shown, the system is most likely over-
charged, and charge should be removed. If
the actual pressure are lower than shown,
the system is most likely undercharged,
and charge should be added.
Settlement of outdoor unit
■ Anchor the outdoor unit with a bolt and
nut(ø10mm(0.39in) tightly and horizontally on a
concrete or rigid mount.
The air conditioner is now ready for use.
PUMP DOWN
■ 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.
This is performed when the unit is to be relocated
or the refrigerant circuit is serviced.
Pump Down means collecting all refrigerant in the out-
door unit without loss of refrigerant.
■ In the case when the vibration of the unit is con-
veyed to the hose, secure the unit with an anti-
vibration rubber.
CAUTION:
Be sure to perform Pump Down procedure with the unit
cooling mode.
Bolt
Pump Down Procedure
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/cm2 G(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 refriger-
ant will have been collected in the outdoor unit.
Tubing connection
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.
- 34 -
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Operation
Operation
Function of Controls
• DISPLAY
1) C/O Model
Operation Indicator
• ON while in appliance operation, OFF while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)
Timer Indicator
• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.
Comp. Running Incidator
• While in appliance operation, ON while in outdoor unit compressor running, OFF while in compres-
sor off.
2) H/P Model
Operation Indicator
• ON while in appliance operation, OFF while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)
Timer Indicator
• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.
Defrost Indicator
• OFF except when hot start during heating mode operation or while in defrost control.
■ Cooling Mode Operation
• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the out-
door fan stop.
• When it reaches 0.5°C above the setting temp, they start to operate again.
Compressor ON Temp
Compressor OFF Temp
■■Setting Temp+0.5°C
■ Setting Temp-0.5°C
• While in compressor running, operating with the airflow speed set by the remote control. While in
compressor not running, operating with the low airflow speed regardless of the setting.
■ Healthy Dehumidification Mode
• When the dehumidification operation input by the remote control is received, the intake air tempera-
ture is detected and the setting temp is automatically set according to the intake air temperature.
26°C ≤ Intake Air Temp
■■ 25°C
24°C ≤ Intake Air Temp<26°C
18°C ≤ Intake Air Temp<24°C
Intake Air Temp<18°C
■■ Intake Air Temp-1°C
■■ Intake Air Temp-0.5°C
■■ 18°C
- 35 -
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Operation
• While in compressor off, the indoor fan repeats low airflow speed and pause.
• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehu-
midification operation and 4-min compressor off repeat.
Compressor ON Temp. ■ Setting Temp+0.5°C
Compressor OFF Temp. ■ Setting Temp-0.5°C
• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.
■ Heating Mode Operation
• When the intake air temp reaches +3°C above the setting temp, the compressor is turned off.
When reaches the setting temp, the compressor is turned on.
Compressor ON Temp. ■ Setting Temp.
Compressor OFF Temp. ■ Setting Temp.+3°C
• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 20°C, when
above 28°C , it operates with the low or setting airflow speed. When the indoor pipe temp is
between 20°C and 28°C, it operates with Super-Low(while in sleep mode, with the medium airflow
speed).
• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C, when above
35°C , it operates with the low airflow speed.
• If overloaded while in heating mode operation, in order to prevent the compressor from OLP opera-
tion, the outdoor fan is turned on/off according to the indoor pipe temp.
• While in defrost control, both of the indoor and outdoor fans are turned off.
■ Defrost Control
• While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from
freezing, reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit.
• After 40 min heating mode operation, at 4 min interval, whether to carry out defrost control or not
and the time of defrost control are determined according to the following conditions.
1) While in heating mode operation, the maximum of the indoor pipe temperature is measured and it is
compared with the present indoor pipe temperature to get the difference of the indoor pipe temper-
atures (=the maximum temperature of indoor pipe ? the present temperature of indoor pipe),
according to which, whether to carry out defrost control or not is determined.
2) According to the need of defrost control shown above and the elapsed time of heating mode opera-
tion at that moment, the defrost control time is determined.
3) When the determined time of defrost control is below 7 min, heating mode operation continues
without carrying out defrost control. According to the procedure stated above, the determination is
made again. When the defrost control time is 7 min or longer, defrost control is then carried out.
• While in defrost control, the minimum temp of the indoor pipe is measured and it is compared with
the present temp of the indoor pipe to get the difference of the indoor pipe temperatures (=the pre-
sent temperature of the indoor pipe ? the minimum temperature of the indoor pipe). When the differ-
ence is 5°C or higher, defrost control is completed and heating mode operation is carried out.
• While in defrost control, if the defrost time determined before the start of defrost control is complet-
ed, defrost control stops and heating mode operation is carried out regardless of the above condi-
tion.
• When the indoor pipe temp is 42°C or above, defrost control is not carried out even if the condition is
one of the defrost conditions above.
• While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way
valve are off.
- 36 -
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Operation
■■Airflow Speed Selection
• The airflow speed of the indoor fan is set to high, medium, low, or chaos (auto) by the input of the
airflow speed selection key on the remote control.
■■Sleep Timer Operation
• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote control
while in appliance operation, the operation of the appliance stops.
• While the appliance is on pause, the sleep timer mode cannot be input.
• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting tempera-
ture increases by 1°C. After another 30 min elapse, it increases by 1°C again.
• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan
is set to the low.
• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan
is set to the medium.
■■Chaos Natural Wind Mode
• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed
of the airflow mode is operated for 2~15 sec. randomly by the Chaos Simulation.
■■Jet Cool Mode Operation (C/O Model)
• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode
operates.
• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode
operation.
• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C
• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has
the priority.
• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode
and then operated in order that the air outflow could reach further.
■■Jet Cool Mode Operation (H/P Model)
• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while
in the other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.
• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode
operation.
• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C.
• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has
the priority.
• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode
and then operated in order that the air outflow could reach further.
- 37 -
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Operation
■ Forced operation
• Operation procedures when the remote control can't be used.
• The operation will be started if the power button is pressed.
• If you want to stop operation, re-press the button.
Heat pump Model
Room Temp. ≥ 24°C(75.2°F) 21°C(69.8°F) ≤ Room Temp. < 24°C(75.2°F) Room Temp. < 21°C(69.8°F)
Cooling Model
Operating mode
Indoor FAN Speed
Setting Temperature
Cooling
High
Cooling
High
Healthy Dehumidification
High
Heating
High
22°C(71.6°F)
22°C(71.6°F)
23°C(73.4°F)
24°C(75.2°F)
• While in forced operation, the key input by the remote control has no effect and the buzzer sounds
10 times to indicate the forced operation.
■ Test operation
•
During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of
room temperature and resets in 18±1 minutes.
•
During test operation, if remote controller signal is received, the unit operates as remote controller
sets.
If you want to use this operation, open the front panel upward and Press the power button let it be
pressed for about 3 seconds.
•
If you want to stop the operation, re-press the button.
■ Auto restart
•
In case the power comes on again after a power failure, Auto Restarting Operation is the function to
operate procedures automatically to the previous operating conditions.
■ Protection of the evaporator pipe from frosting
• If the indoor pipe temp is below 0°C in 7 min. after the compressor operates without any pause
while in cooling cycle operation mode, the compressor and the outdoor fan are turned off in order to
protect the indoor evaporator pipe from frosting.
• When the indoor pipe temp is 7°C or higher after 3 min. pause of the compressor, the compressor
and the outdoor fan is turned on according to the condition of the room temperature.
■ Buzzer Sounding operation
• When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds.
• When the appliance-pause key is input by the remote control, the long "beep—" sounds.
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Operation
Display Function
1. Heating Model
2. Cooling Model
Operation Indicator
Operation Indicator
• Cooling, Soft Dry, Fan, Heating
• Cooling, Soft Dry, Fan
Compressor on Indicator
Deicer Indicator
• Hot-start, Deice
Self-diagnosis Function
Error
Code
Error Display LED
(Indoor body operation LED)
Error contents
SVC check point
• Indoor room temperature
thermistor open/short
• Indoor pipe temperature
thermistor open/short.
• Indoor Thermistor
assembly check
(once)
1
3sec
3sec
3sec
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Operation
Remote Control Operations
The controls will look like the following.
1. START/STOP BUTTON
Operation starts when this button is pressed and
stops when the button is pressed again.
Signal transmitter
2. OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
3. ROOM TEMPERATURE SETTING BUTTONS
Used to select the room temperature.
4. INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps
low, medium, high and CHAOS.
5. JET COOL
Used to start or stop the speed cooling.(speed cooling
operates super high fan speed in cooling mode.)
5
6
1
3
6. CHAOS SWING BUTTON
Used to stop or start louver movement and set
the desired up/down airflow direction.
7. ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping operation.
(See page 22)
4
10
2
7
CANCEL
9
SET
ON
OFF
8. TIME SETTING BUTTONS
AUTO CLEAN
12
11
8
Used to adjust the time. (See page 22)
17
18
14
16
9. TIMER SET/CANCEL BUTTON
13
Used to set the timer when the desired time is obtained and
to cancel the Timer operation. (See page 22)
15
10. SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
(See page 22)
11. AIR CIRCULATION BUTTON
Used to circulate the room air without cooling or heating.
(See page 23)
Flip-up door
(opened)
12. ROOM TEMPERATURE CHECKING BUTTON
Operation Mode
Used to check the room temperature.
13. NEO PLASMA(OPTIONAL)
Used to start or stop the plasma-purification function. (See
page 20)
Cooling Operation
Auto Operation or Auto Changeover
Healthy Dehumidification Operation
14. HORIZONTAL AIRFLOW DIRECTION CONTROL
BUTTON (OPTIONAL)
Used to set the desired horizontal airflow direction.
15. RESET BUTTON
Used prior to resetting time.
Heating Operation
16. 2nd F Button
Used prior to using modes printed in blue at the bottom of
buttons. (See page 21)
•
Cooling Model( ), Heat Pump Model(
)
17. AUTO CLEAN (OPTIONAL)
Used to set Auto Clean mode.
18. ˚C TO ˚F SWITCHING BUTTON
Used to switch temperature reading from Centigrade to
Fahrenheit.
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Disassembly
Disassembly
Indoor Unit
Disconnect the unit from power supply before mak-
ing any checks.
Be sure the power switch is set to “OFF”.
To remove the Grille from the Chassis.
• Set the up-and-down air discharge louver to open
position (horizontally) by finger pressure.
• Remove the securing screws.
• To remove the Grille, pull the lower left and right
side of the grille toward you (slightly tilted) and lift it
straight upward.
1. Before removing the control box, be sure to
take out the wire screwed at the other end.
Earth
Conductor
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Disassembly
2. To remove the Control Box.
• Remove securing screws.
• Pull the control box out from the chassis
carefully.
Screw
3. To remove the Discharge Grille.
• Unhook the discharge grille and pull the
discharge grille out from the chassis carefully.
4. To remove the Evaporator.
• Remove 3 screws securing the evaporator(at the
left 2EA in the Eva Holder, at the right 1EA).
• When repair, do not damage the Caution label.
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Disassembly
• Unhook the tab on the right inside of the chassis
at the same time, slightly pull the evaporator
toward you until the tab is clear of the slot.
5. To remove the Motor Cover
• Remove 2 securing screw.
• Pull the motor cover out from the chassis
carefully.
Motor cover
6. To remove the Cross-Flow Fan
• Loosen the screw securing the cross-flow fan to
the fan motor (do not remove).
Bearing
• Lift up the right side of the cross-flow fan and the
fan motor, separate the fan motor from the
cross-flow fan.
Cross-flow fan
• Remove the left end of the cross-flow fan from
the self-aligning bearing.
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Troubleshooting Guide
Troubleshooting Guide
Refrigeration Cycle Diagram
(1) Cooling Only Models
INDOOR UNIT
OUTDOOR UNIT
LIQUID SIDE
CAPILLARY TUBE
HEAT
HEAT
EXCHANGE
(EVAPORATOR)
EXCHANGE
(CONDENSER)
GAS SIDE
COMPRESSOR
(2) Cooling & Heating Models
INDOOR UNIT
OUTDOOR UNIT
CHECK VALVE
(Heating Model only)
LIQUID SIDE
3-WAY VALVE
CAPILLARY TUBE
HEAT
HEAT
EXCHANGE
(EVAPORATOR)
EXCHANGE
(CONDENSER)
GAS SIDE
REVERSING
VALVE
(Heating Model Only)
3-WAY VALVE
ACCUMU
LATOR
COOLING
COMPRESSOR
HEATING
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Troubleshooting Guide
2-way, 3-way Valve
2-way Valve (Liquid Side)
3-way Valve (Gas Side)
Valve cap
Open position
Hexagonal wrench (4mm)
Flare nut
Flare nut
Closed position
Open position
Closed position
Pin
To
To
piping
piping
Service
port cap
Service
port
connection
connection
To outdoor unit
To outdoor unit
Works
Shaft position
Shaft position
Service port
Closed
(with valve cap)
Closed
(with valve cap)
Closed
(with cap)
Shipping
Air purging
Open
Closed
Open
1.
(Installation)
(counter-clockwise)
(clockwise)
(push-pin or with
vacumm pump)
Open
(with valve cap)
Open
(with valve cap)
Closed
(with cap)
Operation
Closed
(clockwise)
Open
Open
Pumping down
(Transfering)
(counter-clockwise) (connected manifold
gauge)
2.
3.
4.
Open
Open
Open
Open
(with charging
cylinder)
Evacuation
(Servicing)
Open
Open
(with charging
cylinder)
Gas charging
(Servicing)
Open
Pressure check
(Servicing)
(with charging
cylinder)
Open
Open
Open
Open
5.
6.
Open
(with charging
cylinder)
Gas releasing
(Servicing)
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Troubleshooting Guide
Pumping Down
Liquid side
2-Way
Indoor unit
Outdoor unit
Open
valve
Gas side
Closed
3-Way
valve
Lo
CLOSE
CLOSE
Purge the air
• Procedure
(6) Operate the air conditioner at the cooling
cycle and stop it when the gauge indi-
cates 1kg/cm2g.
(1) Confirm that both the 2-way and 3-way
valves are set to the open position.
– Remove the valve stem caps and confirm
that the valve stems are in the raised posi-
tion.
(7) Immediately set the 3-way valve to the
closed position.
– Be sure to use a hexagonal wrench to
operate the valve stems.
– Do this quickly so that the gauge ends up
indicating 3 to 5kg/cm2g.
(2) Operate the unit for 10 to 15 minutes.
(8) Disconnect the charge set, and mount the
2-way and 3-way valve’s stem nuts and
the service port nut.
(3) Stop operation and wait for 3 minutes,
then connect the charge set to the service
port of the 3-way valve.
– Use torque wrench to tighten the service
port nut to a torque of 1.8 kg.m.
– Be sure to check for gas leakage.
– Connect the charge hose with the push pin
to the service port.
(4) Air purging of the charge hose.
– Open the low-pressure valve on the charge
set slightly to air purge from the charge
hose.
Do not use the existing charge set for R-22.
It is necessary to use new charge set for R-
410A. The pressure of R-410A is 1.6 times
higher than that of R-22. Thus, the high pres-
sure side gauge of charge set should be used
higher pressure gauge of 50kg/cm2 range.
(5) Set the 2-way valve to the closed position.
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Troubleshooting Guide
Balance Refrigerant of the 3-way Valve
(Gas leakage)
Liquid side
Indoor unit
Outdoor unit
3-Way
valve
Open
Gas side
3-Way
valve
Open
Lo
OPEN
CLOSE
• Procedure
(1) Confirm that both the 2-way and 3-way
valves are set to the back seat.
(3) Open the valve (Lo side) on the charge set
and discharge the refrigerant until the
gauge indicates 0 kg/cm2G.
(2) Connect the charge set to the 3-way
valve’s port.
– If there is no air in the refrigerant cycle (the
pressure when the air conditioner is not
running is higher than 1 kg/cm2G), dis-
charge the refrigerant until the gauge indi-
cates 0.5 to 1 kg/cm2G. if this is the case, it
will not be necessary to apply a evacuatin.
– Discharge the refrigerant gradually; if it is
discharged too suddenly, the refrigeration
oil will also be discharged.
– Leave the valve on the charge set closed.
– Connect the charge hose to the service
port.
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Troubleshooting Guide
Evacuation
(All amount of refrigerant leaked)
Liquid side
Indoor unit
Outdoor unit
3-Way
valve
Open
Gas side
3-Way
valve
Open
Vacuum pump
Lo
OPEN
CLOSE
• Procedure
(1) Connect the vacuum pump to the center
hose of charge set center hose
(3) Close the valve (Lo side) on the charge
set, turn off the vacuum pump, and con-
firm that the gauge needle does not move
(approxima-tely 5 minutes after turning off
the vacuum pump).
(2) Evacuation for approximately one hour.
– Confirm that the gauge needle has moved
toward -76 cmHg (vacuum of 4 mmHg or
less).
(4) Disconnect the charge hose from the vac-
uum pump.
– Vacuum pump oil.
If the vacuum pump oil becomes dirty or
depleted, replenish as needed.
Use vacuum pump equipped with check value
applied to be prevented from flowing backward.
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Troubleshooting Guide
Gas Charging
(After Evacuation)
Liquid side
3-Way
Indoor unit
Outdoor unit
Open
valve
Gas side
Open
3-Way
valve
Check valve
Charging
cylinder
Lo
(1)
OPEN
CLOSE
• Procedure
\
This is different from previous procedures.
Because you are charging with liquid refrigerant
from the gas side, absolutely do not attempt to
charge with larger amounts of liquid refrigerant
while operating the air conditioner.
(1) Connect the charge hose to the charging
cylinder.
– Connect the charge hose which you dis-
connected from the vacuum pump to the
valve at the bottom of the cylinder.
– If you are using a gas cylinder, also use a
scale and reverse the cylinder so that the
system can be charged with liquid.
(4) Immediately disconnect the charge hose
from the 3-way valve’s service port.
– Stopping partway will allow the gas to be
discharged.
(2) Purge the air from the charge hose.
– Open the valve at the bottom of the cylin-
der and press the check valve on the
charge set to purge the air. (Be careful of
the liquid refrigerant). The procedure is
the same if using a gas cylinder.
– If the system has been charged with liquid
refrigerant while operating the air condi-
tioner turn off the air conditioner before
disconnecting the hose.
(3) Open the valve (Lo side on the charge set
and charge the system with liquid refrig-
erant.
(5) Mount the valve stem nuts and the service
port nut.
– If the system can not be charged with the
specified amount of refrigerant, it can be
charged with a little at a time (approximate-
ly 150g each time) while operating the air
conditioner in the cooling cycle; however,
one time is not sufficient, wait approxi-
mately 1 minute and then repeat the pro-
cedure (pumping down-pin).
– Use torque wrench to tighten the service
port nut to a torque of 1.8 kg.m.
– Be sure to check for gas leakage.
This unit is charged with R-410A.
Pay attention not to charge R-22.
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Troubleshooting Guide
Additional gas charging
(Gas leakage)
• When refrigerant is insufficient by leakage, recharge the unit with the refrigerant up to normal oper-
ating suction pressure.
• Use the graph or the equation below to get operating suction pressure according to indoor and out-
door temperature.
Suction pressure was measured at 3-way valve service port after operating the unit for 10 minutes.
The method of using graph
- Find outdoor temperature.
- Find indoor temperature onto the curve of outdoor temperature.
- Read suction pressure at the axis of ordinates.
The method of using equation
-. Calculate suction pressure after putting indoor and outdoor temperature into the equation.
Operating Suction Pressure (For R410A)
(According to Indoor & Outdoor Temperature)
(At operating the Unit for 10 minutes)
13
50˚C
12
40˚C
11
10
9
30˚C
20˚C
10˚C
8
0˚C
7
6
5
5
10
15
20
25
30
35
40
Indoor Temp. (˚C)
P = 3 + 0.0123 x Tout1.5 + 0.8 x Tin0.5
2
.
Where, P
: Suction Pressure(kg/cm g)
Tout : Outdoor Temperature(˚C)
Tin : Indoor Temperature(˚C)
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Troubleshooting Guide
Cycle Parts
Trouble analysis
1. Check temperature difference between intake and discharge air and operating current.
Temp. difference : approx. °F(0°C)
• All amount of refrigerant leaked
out. Check refrigeration cycle.
Current
: less than 80% of
rated current
Temp. Difference
Operating Current
• Refrigerant leakege
Clog of refrigeration cycle
Defective compressor
Temp. difference : approx. 14°F(8°C)
Current
: less than 80% of
rated current
Temp. difference : less than 14°F(8°C)
• Excessive amount of refrigerant
• Normal
Current
: over the reated
current
Temp. difference : over 14°F(8°C)
NOTICE
Temperature difference between intake and discharge air depends on room air humidity. When the room air
humidity is relativery higher, temperature difference is smaller. When the room air humidity is relatively lower
temperature difference is larger.
2. Check temperature and pressure of refrigeration cycle.
Suction pressure
(Compared with
the normal value)
Temperature
(Compared with
the normal valve)
Cause of Trouble
Description
Defective compressor
Defective 4-way reverse valve
Current is low.
High
Higher
Excessive amount of
refrigerant
High pressure does not quickly
rise at the beginning of
operation.
Normal
Insufficient amount of
refrigerant (Leakage)
Clogging
Current is low.
Current is low.
Lower
Higher
NOTICE
1. The suction pressure is usually 8.5~9.5 kg/cm2G(Cooling) at normal condition.
2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with
putty.
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Troubleshooting Guide
Electronic Parts (9k model)
Product does not operate at all.
(* Refer to Electronic Control Device drawing and Schematic diagram.)
Turn off Main Power
(After 20 seconds)
Turn on Main Power
Does "beeping" sound is made from the Indoor Unit?
YES
NO
Primarily, the operating condition of Micom is OK.
Check the voltage of power(About AC 115V, 60Hz)
• Main power's voltage
• Voltage applied to the unit
• Connecting method of Indoor/Outdoor connecting
cable
• Check PWB Ass'y(Outdoor unit)
- Fuse
Check each load(Indoor/Outdoor Fan Motor,
Compressor, Stepping Motor) and contacting
condition of related connector(including connecting
cable of Indoor/Outdoor Unit)
- Pattern damage
- Varistor(ZNR01J)
Check the connection housing for contacting
• Connector related to CN-POWER
• Connector related to CN-FAN
• Connector contacting of Outdoor Fan/Compressor
• Display PWB Ass'y Check
• Connector related to CN-DC/DC
PCB Board Operation Check
Content
Remedy
Items
• Power Transformer
(Outdoor unit)
±
- Input Voltage
- Output Voltage
- About AC115V 10% - Check the power voltage
• Replace SMPS
Module
±
- About DC15V 3
+
• IC01D(7812) Output
(Indoor/Outdoor unit)
• DC 12V
• Replace IC01D
+
• IC02D(7805) Output (Indoor unit)
IC03D(7805) Output (Outdoor unit)
• DC 5V
• Replace
IC02D(Indoor unit)
IC03D(Outdoor unit)
• IC01A(KIA7036, Reset IC)
OSC01B(4MHz)
(Indoor/Outdoor unit)
• Voltage of Outdoor unit Micom No. 18,
Voltage of Indoor unit Micom No. 43 and
soldering condition
• Replace faulty parts
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Troubleshooting Guide
Electronic Parts (18k model)
Product does not operate at all.
(* Refer to Electronic Control Device drawing and Schematic diagram.)
Turn off Main Power
(After 20 seconds)
Turn on Main Power
Does "beeping" sound is made from the Indoor Unit?
YES
NO
Primarily, the operating condition of Micom is OK.
Check the voltage of power(About AC 208V/AC 230V, 60Hz)
• Main power's voltage
• Voltage applied to the unit
• Connecting method of Indoor/Outdoor connecting
cable
• Check PWB Ass'y(Outdoor unit)
- Fuse
Check each load(Indoor/Outdoor Fan Motor,
Compressor, Stepping Motor) and contacting
condition of related connector(including connecting
cable of Indoor/Outdoor Unit)
- Pattern damage
- Varistor(ZNR01J)
Check the connection housing for contacting
• Connector related to CN-POWER
• Connector related to CN-FAN
• Connector contacting of Outdoor Fan/Compressor
• Display PWB Ass'y Check
• Connector related to CN-DC/DC
PCB Board Operation Check
Content
Remedy
Items
• Power Transformer
(Outdoor unit)
±
- Input Voltage
- Output Voltage
- About AC 208V/AC 230V 10%
• Replace SMPS
Module
- Check the power voltage
±
- About DC15V 3
• IC01D(7812) Output
(Indoor/Outdoor unit)
• Replace IC01D
+
• DC 12V
• IC02D(7805) Output (Indoor unit)
IC04D(7805) Output (Outdoor unit)
• Replace
IC02D(Indoor unit)
IC04D(Outdoor unit)
+
• DC 5V
• IC01A(KIA7036, Reset IC)
OSC01B(4MHz)
(Indoor/Outdoor unit)
• Voltage of Outdoor unit Micom No. 18,
Voltage of Indoor unit Micom No. 43 and
soldering condition
• Replace faulty parts
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Troubleshooting Guide
The product is not operate with the remote controller.
Turn on Main Power
While the compressor has been stopped, the compressor does not
operate owing to the delaying function for 3 minutes after stopped.
When the compressor stopped Indoor Fan is driven by a low speed.
At this point the wind speed is not controlled by the remote controller.
(When operated in the Sleeping Mode, the wind speed is set to the
low speed by force.)
Caused by other parts except the remote controller
Cause by the remote controller
When the mark(
battery.
) is displayed in LCD screen, replace
Check the contact of CN-DISP connector.
When the detect switch(double key) inside the remote
controller door is fault, it is impossible to operate
Check DISP PWB Ass'y
- Voltage between CN DISP
+
-
: DC 5V
temperature regulating(
/
) and wind speed selecting.
Check the connecting circuit between the remote controller
MICOM (No. ) - R17(2Ω) - IR LED - Q1 - R16(2.2KΩ).
Check point
• Check the connecting circuit between PIN 43 -
R11L(1K) - C11L(680PF) - MICOM PIN
• Check Receiver Ass'y
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Troubleshooting Guide
Compressor/Outdoor Fan are unable to drive.(9k Model)
Turn on Main Power
Operate "Cooling Mode( )" by setting the desired temperature of the
remote controller is less than one of the indoor temperature by 2°F at least.
When in Fan Mode, Compressor/Outdoor Fan is stopped.
Check the sensor for indoor temperature is attached as close as to be
effected by the temperature of Heat Exchanger(EVA).
When the sensor circuit for indoor temperature and connector are in bad
connection or are not engaged, Compressor/Outdoor Fan is stopped.
• Check the related circuit of R02H(12.1K), R04H(6.2K), Micom (No.27)
(Indoor unit).
• Check the indoor temperature sensor is disconnected or not(About 10kΩ / at 77°F).
When the temperature around Outdoor PWB Ass'y is above 163°F the
compressor is stop and only Outdoor Fan is operating.
Check Relay(RY - COMP) for driving compressor.
• When the power(About AC110V) is applied to the connecting wire termi-
nal support transferred to compressor, PWB Ass'y is normal.
• Check the circuit related to the relay(Outdoor unit).
Check point
Between Micom(No.
5) and GND
COMP ON
COMP OFF
DC5V
DC0V
Between IC01M, IC02M(No. 9)
and IC01M, IC02M(No. 8)
Below DC 1V
(app)
About DC12V
Turn off Main Power
• Check the electrical wiring diagram of outdoor side.
• Check the abnormal condition for the component of Compressor/Outdoor
Fan Motor.
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Troubleshooting Guide
Compressor/Outdoor Fan are unable to drive.(18k Model)
Turn on Main Power
Operate "Cooling Mode( )" by setting the desired temperature of the
remote controller is less than one of the indoor temperature by 2°F at least.
When in Fan Mode, Compressor/Outdoor Fan is stopped.
Check the sensor for indoor temperature is attached as close as to be
effected by the temperature of Heat Exchanger(EVA).
When the sensor circuit for indoor temperature and connector are in bad
connection or are not engaged, Compressor/Outdoor Fan is stopped.
• Check the related circuit of R02H(12.1K), R04H(6.2K), Micom (No.27)
(Indoor unit).
• Check the indoor temperature sensor is disconnected or not(About 10kΩ / at 77°F).
When the temperature around Outdoor PWB Ass'y is above 163°F the
compressor is stop and only Outdoor Fan is operating.
Check Relay(RY - COMP) for driving compressor.
• When the power(About AC200V) is applied to the connecting wire termi-
nal support transferred to compressor, PWB Ass'y is normal.
• Check the circuit related to the relay(Outdoor unit).
Check point
Between Micom(No.
5, 6) and GND
COMP ON
COMP OFF
DC5V
DC0V
Between IC01M, IC02M(No. 9)
and IC01M, IC02M(No. 8)
Below DC 1V
(app)
About DC12V
Turn off Main Power
• Check the electrical wiring diagram of outdoor side.
• Check the abnormal condition for the component of Compressor/Outdoor
Fan Motor.
- 56 -
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Troubleshooting Guide
When indoor Fan does not operate.
Does the voltage of each terminals of CN-MOTOR CONNECTOR in
Indoor unit corresponds to values in the Table of page 56
Does the voltage of terminal of CN-DC/DC CONNECTOR in
Check connecting condition of the CN-MOTOR CON-
Indoor unit corresponds to the values in the table of page 56
NECTOR
Do the voltage of terminal of
Check the pattern and the
CN-DC/DC CONNECTOR in
condition of Indoor unit PWB
Outdoor unit corresponds to the
Ass'y.
Check the interference of Indoor Fan.
values in the table of page 56
NO
Check the connecting condi-
Check the patterns and the
tion and disconnection of
Check the motor of Indoor Fan
conditions of outdoor unit
connecting wires between
PWB Assy's.
Indoor and Outdoor unit.
Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode).
Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F.
(At that times, Defrost indicator is turned on)
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Troubleshooting Guide
When Vertical Louver does not operate.
• Confirm that the Vertical Louver is normally geared with the shaft of
Stepping Motor.
• If the regular torque is detected when rotating the Vertical Louver with
hands
Normal
• Check the connecting condition of CN-UP/DOWN Connector
• Check the soldering condition(on PWB) of CN-UP/DOWN Connector
Check the operating circuit of the Vertical Louver
+
• Confirm that there is DC 12V between pin (RED) of CN-UP/DOWN and
GND.
• Confirm that there is a soldering short at following terminals.
- Between 60 , 61 , 62 and 63 of MICOM
- Between 2 , 3 , 4 and 5 of IC01M
- Between 12 , 13 , 14 , 15 of IC01M
- Between 1 , 2 , 3 , 4 and 5 of CN-UP/DOWN
If there are no problems after above checks
• Confirm the assembly conditions that are catching and interfering parts in
the rotation radial of the Vertical Louver
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Troubleshooting Guide
When a comunication error occurs.
• The operation indicator of Indoor unit blinks five times.
• The red indicator of Outdoor unit blinks five times.
Check the connecting wires between Indoor and Outdoor unit for the
connecting error and the contacting condition.
Check the installation condition of outdoor unit.
Check for the communication error and the operating condition of product
after also operating with the remote controller, then taking above 2 minutes.
Apply the power again after about 20 seconds by the power of Outdoor unit
is off.
Check for the communication error and the operating condition of product
after also operating with the remote controller, then taking above 2 minutes.
Check the PWB assembly of Indoor and Outdoor unit.
If the connecting wires of Indoor and Outdoor unit are not connected within 2 minutes after the power of
Outdoor unit is applied, a communication error will occur. Therefore, the power should be applied after connect-
ing them.
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Troubleshooting Guide
The phenomena in case of connecting error
INDOOR UNIT
Connector Type
CN-DC/DC
Phenomena
Condition
Open and connecting error
• The same as the phenomenon of Outdoor Unit.
Blue
Black
Brown
Red
• The indoor fan does not operate.
• The operation indicator of Indoor unit blinks 8 times.
CN-MOTOR
Open
Open
Short between terminals
Open
• The up/down vane does not operate.
CN-UP/DOWN
CN-DISP
• The up/down vane does not smoothly operate.
• It does not operate with a remote controller.
• The operation indicator blinks once.
On for 0.5 second
Open
Off for 3 seconds
• The compressor and the outdoor fan stop.
• The indoor fan speed is low.
CN-TH
• The operation indicator blinks once
(on for 0.5 second, off for 3 seconds).
• The compressor operates continuously regardless
of the setting temperature and the variation of room
temperature.
Short between terminals
(
and ) of ROOM-TH.
• The operation indicator blinks once
(on for 0.5 second, off for 3 seconds)
• Continuous operation
Short between terminals
(
and ) of PIPE-TH.
- 60 -
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Troubleshooting Guide
OUTDOOR UNIT
Connector Type
Phenomena
Condition
• All functions stop.
• The operation with the remote controller, forced and
test one do not operate.
OPEN
CN-POWER
Connecting reversely
• PWB pattern is damaged when applying the power.
• All functions stop or the compressor does not operate.
• The operation with the remote controller, forced and test
one do not operate.
OPEN
RY-COMP
terminal
• All functions stop.
• The operation with the remote controller, forced and test
one do not operate.
Connecting reversely
• All functions stop.
• The operation with the remote controller, forced and
test one do not operate.
OPEN
OPEN
OPEN
CN-TRANS
CN-FAN
• The Indoor Fan does not operate.
• All functions stop.
• The operation with the remote controller, forced and test
one do not operate.
The connecting
wire of CN-
DC/DC, and
Indoor and
• The only signal of remote controller operation/stop is
inputted, but the product does not operate.
• The RED indicator of outdoor unit blinks 5 times after 2
minutes with applying the power.
Connecting error
Outdoor Unit
(
)
• The beep sound, such as "beep, beep, beep, beep,
beep", occurs periodically in Indoor unit.
• The signal input of a remote controller and operation of
product is impossible.
• The RED indicator blinks 5 times after 2 minutes with
applying the power.
Blue
Connecting error
Black
Brown
Red
(
)
• The signal of remote controller is inputted, but the
product does not operate.
• The RED indicator of outdoor unit and the operation
indicator of indoor one blinks 5 times after 2 minutes
with applying the power.
Connecting error
(
)
• No power for Indoor unit.
• The signal input of the remote controller and opera-
tion of product is impossible.
• The thermal protector of the Power Trans operates
when let it alone for long time.
Connecting error
(
)
• The signal of the remote controller is inputted.
• The fuse and Q61 in the Outdoor unit are damaged
when the indoor fan is operated.
Connecting error
(
)
• No power for Indoor unit.
• The signal input of the remote controller and opera-
tion of product is impossible.
• The RED indicator of the Outdoor unit blinks 5 times
after 2 minutes with applying the power.
Connecting error
(
)
- 61 -
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Schematic Diagram
Schematic Diagram
Electric Control Device
■ Indoor
- 62 -
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Schematic Diagram
■ Outdoor (9k, 12k)
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Schematic Diagram
■ Outdoor (18k, 24k)
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Schematic Diagram
Wiring Diagram
■■Indoor Unit
Models: 9k, 12k, 18k, 24k
- 65 -
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Schematic Diagram
■■Outdoor Unit
Models: 9k(C/O)
Models: 12k(H/P), 12k(C/O, H/P)
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Schematic Diagram
Models: 18k(C/O)
Models: 18k(H/P), 24k(C/O, H/P)
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Schematic Diagram
Components Location
■■Indoor
MAIN P.W.B ASSEMBLY
• TOP VIEW
• BOTTOM VIEW
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Schematic Diagram
■ Outdoor(9k, 12k)
• TOP VIEW
• BOTTOM VIEW
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Schematic Diagram
■ Outdoor(18k, 24k)
• TOP VIEW
• BOTTOM VIEW
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Schematic Diagram
DISPLAY ASSEMBLY
– 6871A20681
CN-DISP1
PCB P/No :6870A90240F
8 8
PLASMA
LED_M
C01A
RECEIVER
SW _TACT
PCB ASSEMBLY P/No :6871A20681
– 6871A20680
- 71 -
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Product Specifications
Product Specifications
Cooling Only
Model Name
LS090CP
LS120CP
LS180CP
LS240CP
(AS-C0914DH0) (AS-C121E1H0) (AS-C1835DM0) (AS-C2435DM0)
Item
Unit
1, 115V, 60
9,000
1, 115V, 60
11,500
1,150
10.5
57
13
9.3(330)
1.4(3.0)
41
1, 230/208, 60
18,000/17,800
1,940
8.6/9.5
25*2
13
13.0(460)
2.5(5.3)
41
1, 230/208 , 60
22,100/22,500
2,250
12.5/11.5
29+33
Power Supply
Cooling Capacity
Input
Running Current
COMP. Locked Rotor AMP.
S.E.E.R
Air Circulation
Moisture Removal
Noise Level
Ø, V, Hz
BTU/h
780
7
50
13
7.1(250)
1.2(2.6)
36
W
A
A
13
m3G/min(cfm)
l/h(pts/hr)
dB(A)
15(530)
3.1(6.6)
46
Indoor, High
31
28
36
34
36
35
41
38
(Sound Pressure, 1m) Med
Low
dB(A)
dB(A)
48
48
55
57
Outdoor, Max
dB(A)
Thermistor
4-way
themistor
4-way
Thermistor
4-way
themistor
4-way
Features
Temperature Control
Air Deflection
3/3
3/3/3
3/3
3/3/3
Steps, Fan/Cool
Auto
Auto
Wireless LCD
64~86°F
2°F(1°C)
Yes
auto
auto
Wireless LCD
64~86°F
2°F(1°C)
Yes
Auto
Auto
Wireless LCD
64~86°F
2°F(1°C)
Yes
auto
auto
Wireless LCD
64~86°F
2°F(1°C)
Yes
Air Deflection Control(up&down)
Air Deflection Control(left&right)
Remocon Type
Setting Temperature Range, Cooling Mode
Temperature Increment
Auto Operation(electronic control)
Self Diagnosis
Yes
Yes
Yes
Yes
24hr , On/Off
Yes
24hr , on/off
Yes
24hr , On/Off
Yes
24hr , on/off
Yes
Timer
Sleep Operation
Yes
Yes
Yes
Yes
Healthy Dehumidification Mode
3
3
3
3
Restart Delay
minutes
g(oz)
AWG#:P*mm2
A
600(21.1)
14:3*2.5
15
930(32.8)
14:3*2.5
20
850(30.0)
14:3*2.5
20
1750(61.7)
12:3Åñ2.5
30
Refrigerant(R-410a) Charge
Power cord
Fuse of breaker Capacity
Connecting Cable
Connecting Tube
(Ø, Socket Flare)
AWG#:P*mm2
mm(in)
mm(in)
m(ft)
18:4*0.75
6.35(1/4)
9.52(3/8)
7.5(25)
15.5(5/8)
840*270*153
33-1/16*10-5/8*6-1/32
770*541*244
30-5/16*21-5/16*9-5/18
7.0(15.4)
30(66.1)
8.2(18.0)
33.3(73.4)
18:4*0.75
6.35(1/4)
12.7(1/2)
7.5(25)
15.5(5/8)
895*282*165
35-1/4*11-1/8*6-1/2
770*541*244
30-5/16*21-5/16*9-5/8
9.3(20.5)
33(72.8)
10.5(23.1)
33.3(73.4)
18:4*0.75
6.35(1/4)
12.7(1/2)
7.5(25)
15.5(5/8)
1090*300*178
18:4*0.75
6.35(1/4)
15.88(5/8)
7.5(25)
15.5(5/8)
1090*300*178
Liquid Side
Gas Side
Length, std
Additional Drain Hose(outer Dia.)
Dimensions
(WxHxD)
mm(in)
mm
in
mm
Indoor
42-15/16*11-13/16*7-1/32 42-15/16*11-13/16*7-1/32
871*655*320
34-5/16*25-13/16*12-5/8
13.0(28.6)
871*800*320
34-5/16*31-1/2*12-5/8
13(28.6)
77(169.6)
16.0(35.3)
Outdoor
in
Net Weight
Indoor
Outdoor
Indoor
Kg(lbs)
Kg(lbs)
Kg(lbs)
Kg(lbs)
68.1(149.9)
16.0(35.3)
71.1(156.5)
Gross Weight
82.5(181.6)
Outdoor
* Design and specifications subject to change without prior notice for product improvement.
- 72 -
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Product Specifications
Cooling & Heating
Items
Unit
LS090HP
LS120HP
LS180HP
LS240HP
(AS-H091E1H0) (AS-H121E1H0) (AS-H1835DM0) (AS-H2435DM0)
Power Supply
Cooling Capacity
Heating Capacity
ø, V, Hz
BTU/h
BTU/h
W
W
A
A
A
1, 115V, 60
9,800
9,800
980
1, 115V, 60
11,500
11,500
1,150
1,150
10.5
1, 230/208 , 60
19,000/19,500
19,000/19,500
2,250
1, 230/208 , 60
22,100/22,500
22,100/22,500
2,250
Input
Cooling
Heating
Cooling
Heating
Cooling
Heating
980
9.5
9.5
57
57
13
2,700
2,700
Running Current
12.5/11.5
12.5/11.5
29+33
29+33
13
12.5/11.5
12.5/11.5
29+33
29+33
13
10.5
57
57
13
COMP. Locked
Rotor AMP.
S.E.E.R
A
H.S.P.E
7.8
7.8
7.8
7.8
Air Circulation
Moisture Removal
Noise Level
(Sound
m3/min(cfm)
l/h(pts/hr)
dB(A)
9.3(330)
1.4(3.0)
41
9.3(330)
1.4(3.0)
41
15(530)
3.1(6.6)
46
15(530)
3.1(6.6)
46
Indoor, High
Med
dB(A)
36
36
41
41
Pressure, 1m)
Low
dB(A)
34
34
38
38
Outdoor, Max
Temperature Control
Air Deflection
Steps, Fan/Cool/Heat
dB(A)
48
48
57
themistor
4-way
57
themistor
4-way
Features
themistor
4-way
3/3/3
themistor
4-way
3/3/3
3/3/3
3/3/3
Airflow Direction Control(up&down)
Airflow Direction Control(left&right)
Remocon Type
Setting Temperature Range, Cooling Mode
Heating Mode
Temperature Increment
Auto Operation(electronic control)
Self Diagnosis
auto
auto
auto
auto
auto
auto
auto
auto
Wireless LCD
64~86°F
60~86°F
2°F(1°C)
Yes
Wireless LCD
64~86°F
60~86°F
2°F(1°C)
Yes
Wireless LCD
64~86°F
60~86°F
2°F(1°C)
Yes
Wireless LCD
64~86°F
60~86°F
2°F(1°C)
Yes
Yes
Yes
Yes
Yes
Timer
Sleep Operation
24hr , on/off
Yes
24hr , on/off
Yes
24hr , on/off
Yes
24hr , on/off
Yes
Healthy Dehumidification Mode
Yes
Yes
Yes
Yes
Restart Delay
Defrost Control
Hot Start
minutes
3
Yes
Yes
3
Yes
Yes
3
Yes
Yes
3
Yes
Yes
Refrigerant(R410A) Charge
Power cord
Fuse or breaker Capacity
Connecting Cable
g(oz)
AWG #: P*mm2
A
930(32.8)
14:3*2.5
20
18:4*0.75
6.35(1/4)
12.7(1/2)
7.62(25)
15.5(5/8)
895*282*165
930(32.8)
14:3*2.5
20
18:4*0.75
6.35(1/4)
12.7(1/2)
7.62(25)
15.5(5/8)
895*282*165
1750(61.7)
12:3*2.5
30
18:4*0.75
6.35(1/4)
15.88(5/8)
7.62(25)
15.5(5/8)
1090*300*178
1750(61.7)
12:3*2.5
30
AWG #: P*mm2
mm(in)
mm(in)
m(ft)
18:4*0.75
6.35(1/4)
15.88(5/8)
7.62(25)
15.5(5/8)
1090*300*178
42-15/16*11-13/16*7-1/32
871*800*320
34-5/16*31-1/2*12-5/8
13(28.6)
77(169.6)
16.0(35.3)
82.5(181.6)
Connecting Tube
(ø. Socket Flare)
Liquid Side
Gas Side
Length, std
Additional Drain Hose(Outer Dia.)
mm(in)
mm
in
mm
in
kg(lbs)
kg(lbs)
Kg(lbs)
Kg(lbs)
Dimensions
(WxHxD)
Indoor
35-1/4*11-1/8*6-1/2 35-1/4*11-1/8*6-1/2 42-15/16*11-13/16*7-1/32
Outdoor
770*541*244
30-5/16*21-5/16*9-5/8
9.3(20.5)
770*541*244
30-5/16*21-5/16*9-5/8
9.3(20.5)
871*800*320
34-5/16*31-1/2*12-5/8
13(28.6)
Net Weight
Indoor
Outdoor
Indoor
33(72.8)
10.5(23.1)
34.3(75.7)
33(72.8)
10.5(23.1)
34.3(75.7)
77(169.6)
16.0(35.3)
82.5(181.6)
Gross Weight
Outdoor
* Design and Specifications subject to change without prior notice for product improvement.
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Exploded View
Exploded View
Indoor Unit
135316
Option Parts
152313
152302
135313
131410
733010
Part for
Plasma Models
342800
159830
359011
135311
354210
147581
352115
346810
135516
35211B
268711A
352116
352150
266090
Part for
Plasma Models
263230A
146811
268711B
268711C
267110
249951
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Exploded View
Outdoor Unit: 9k, 12k (C/O) Seriess
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Exploded View
Outdoor Unit: 9k, 12k (H/P) Seriess
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Exploded View
Outdoor Unit: 18k(C/O) Seriess
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Exploded View
Outdoor Unit: 24k(C/O) Seriess
435512
263230B
137213A
435300
137213B
437210
349480
554031
552112
552113
349600
435301
435511
W0CZZA
W0CZZB
546810
263230C
268711D
559010
649950
447910
567502A
Part for
552203A
552203B
External Models
554160A
554160B
567502B
Part for
External Models
430410
550140
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Exploded View
Outdoor Unit: 18k, 24k (H/P) Seriess
435512
263230B
137213A
435300
137213B
437210
349480
554031
552112
552113
349600
435301
435511
W0CZZA
W0CZZB
546810
263230C
268711D
559010
649950
552116
561410
552202
447910
567502A
Part for
552203A
External Models
554160A
566000
552203B
554160B
567502B
Part for
External Models
430410
550140
- 79 -
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December, 2007
P/NO : MFL32351801
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