Test Running .............................................................................................................................................40
Function of control..................................................................................................................................41
Function of Indoor Unit...........................................................................................................................46
Function of Outdoor Unit ........................................................................................................................47
Remote Control Operation .....................................................................................................................48
Indoor Unit .............................................................................................................................................80
Wall Mounted Multi-Zone Split System Air Conditioner
- 2 -
NOTICE
Combination table
18 kBtu/h( 2 rooms)
Combination
Indoor Unit A(kBtu/h)Indoor Unit B(kBtu/h)Total(kBtu/h)
2 Indoor Units9918
24 kBtu/h( 2 rooms)
Combination
Indoor Unit A(kBtu/h)Indoor Unit B(kBtu/h)Total(kBtu/h)
2 Indoor Units121224
Combination table
36 kBtu/h (3 rooms)
Combination
Indoor Unit A(kBtu/h)Indoor Unit B(kBtu/h)Indoor Unit C(kBtu/h)Total(kBtu/h)
3 Indoor Units12121236
Notes :
1.Cooling Capacity is based on : indoor temp. 26.7°C(80.1°F)DB, 19.4°C(66.9°F)WB; outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB
2.Heating Capacity is based on : indoor temp. 21.1°C(70°F)DB, 15.6°C(60.1°F)WB; outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB
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.
- 3 -
Service Manual
Safety Precautions
WARNING
CAUTION
WARNING
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 a defective or underrated circuit breaker. Use this
appliance on a dedicated circuit.
• There is risk of fire or electric
shock.
Install the panel and the cover
of control box securely.
• There is risk of fire or electric
shock.
For electrical work, contact the
dealer, seller, a qualified electrician,
or an Authorized Service Center
• Do not disassemble or repair the
product. There is risk of fire or
electric shock.
.
Always install a dedicated circuit and breaker.
• Improper wiring or installation may
cause fire or electric shock
• There is risk of fire or electric
Always ground the product.
• There is risk of fire or electric
shock.
Use the correctly rated breaker or fuse.
shock.
Wall Mounted Multi-Zone Split System Air Conditioner
- 4 -
Safety Precautions
Do not install, remove, or reinstall the unit by yourself
(customer).
• There is risk of fire, electric shock,
explosion, or injury.
Do not install the product on a
defective installation stand.
• It may cause injury, accident, or
damage to the product.
Be cautious when unpacking
and installing the product.
• Sharp edges could cause injury.
Be especially careful of the case
edges and the fins on the condenser and evaporator.
Be sure the installation area
does not deteriorate with age.
• If the base collapses, the air conditioner could fall with it, causing
property damage, product failure,
and personal injury.
For installation, always contact the dealer or an
Authorized Service Center.
• There is risk of fire, electric shock,
explosion, or injury.
Do not let the air conditioner
run for a long time when the
humidity is very high and a
door or a window is left open.
• Moisture may condense and wet or
damage furniture.
Do not allow water to run into
electric parts.
• It may cause There is risk of fire,
failure of the product, or electric
shock.
Do not store or use flammable
gas or combustibles near the
product.
• There is risk of fire or failure of
product.
Gasolin
- 5 -
Do not use the product in a
tightly closed space for a long
time.
• Oxygen deficiency could occur.
Service Manual
Safety Precautions
When flammable gas leaks,
turn off the gas and open a
window for ventilation before
If strange sounds or smoke
come from the product, turn
the breaker off.
turn the product on.
• Do not use the telephone or turn
switches on or off. There is risk of
explosion or fire
Do not open the inlet grill of the product
during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)
• There is risk of physical injury,
electric shock, or product failure.
• There is risk of electric shock or
fire.
When the product is soaked
(flooded or submerged), contact
an Authorized Service Center.
• There is risk of fire or electric
shock.
Stop operation and close the
window in storm or hurricane.
If possible, remove the product from the window before
the hurricane arrives.
• There is risk of property damage,
failure of product, or electric shock.
Be cautious that water can
never enter the product.
• There is risk of fire, electric shock,
or product damage.
Ventilate the product from time to time when
operating it together with a stove, etc.
• There is risk of fire or electric shock.
Wall Mounted Multi-Zone Split System Air Conditioner
Turn the main power off when cleaning or
maintaining the product.
• There is risk of electric shock.
- 6 -
Safety Precautions
CAUTION
When the product is not being used for a long time,
disconnect the power by turning off the breaker.
• There is risk of product damage or failure, or unintended operation.
■ Installation
Always check for gas (refrigerant) leakage after installation or repair of product.
Install the drain hose to ensure that
water is drained away properly.
Take care to ensure that nobody could step on
or fall onto the outdoor unit.
• This could result in personal injury and product damage.
Keep level even when
installing the product.
• Low refrigerant levels may cause
failure of product.
Do not install the product
where the noise or hot air
from the outdoor unit could
offend neighbors.
• It may cause a problem for your
neighbors.
• A bad connection may cause water
leakage.
Use two or more people to lift
and transport the product.
• Avoid personal injury.
• To avoid vibration or water leakage.
90°
Do not install the product
where it will be exposed to
sea wind (salt spray) directly.
• It may cause corrosion on the
product. Corrosion, particularly on
the condenser and evaporator fins,
could cause product malfunction or
inefficient operation.
- 7 -
Service Manual
Safety Precautions
■ Operational
Do not expose the skin directly to cool air for long periods
of time.
(Don't sit in the draft.)
• This could harm to your health.
Use a soft cloth to clean. Do
not use harsh detergents, solvents, etc.
• There is risk of fire, electric shock,
or damage to the plastic parts of
the product.
Do not use the product for
special purposes, such as
preserving foods, works of
art, etc. It is a consumer air
conditioner, not a precision
refrigeration system.
• There is risk of damage or loss of
property.
Do not touch the metal parts of
the product when removing the
air filter. They are very sharp!
• There is risk of personal injury.
Do not block the inlet or outlet
of air flow.
• It may cause product failure.
Do not step on or put anyting
on the product. (outdoor
units)
• There is risk of personal injury and
failure of product.
Thinner
Wax
Always insert the filter securely. Clean the filter every two
weeks or more often if necessary.
•
A dirty filter reduces the efficiency of
the air conditioner and could cause
product malfunction or damage.
Wall Mounted Multi-Zone Split System Air Conditioner
Do not insert hands or other
objects through the air inlet or
outlet while the product is
operating.
• There are sharp and moving parts
that could cause personal injury.
Do not drink the water drained
from the product.
• It is not sanitary and could cause
serious health issues.
- 8 -
Safety Precautions
Use a firm stool or ladder when cleaning or
maintaining the product.
• Be careful and avoid personal injury.
Do not recharge or disassemble the batteries.
Do not dispose of batteries in a fire.
• They may burn or explode.
Replace the all batteries in the remote control
with new ones of the same type. Do not mix
old and new batteries or different types of batteries.
• There is risk of fire or explosion
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.
• The chemicals in batteries could cause burns or other
health hazards.
If you ingest the liquid from the batteries, call your
local poison control center or a doctor.
Do not use the remote is the batteries have leaked.
• The chemicals in batteries could cause burns or other
health hazards.
- 9 -
Service Manual
Seaside applications and installation
Seaside applications and installation
1.
Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.
2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion
on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.
3.
If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind.
Selecting the location(Outdoor Unit)
1) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided.
Install the outdoor unit on the opposite side of the sea wind direction.
Sea windSea wind
2) To
install the outdoor unit on the seaside, set up a windbreaker/barrier to keep the unit from being exposed to
the sea wind.
Windbreaker/Barrier
Sea wind
3) Select a well-drained place.
• It should be strong enough (like concrete) to
obstruct the wind from the sea.
• The height and width should be more than 150% of
the outdoor unit.
A minimum of 70cm (27.6inches) of space between
•
outdoor unit and the windbreaker/barrier for easy
air flow.
1. Periodic ( more than once/year ) cleaning of dust or salt particles stuck on the heat exchanger using water is recommended.
Wall Mounted Multi-Zone Split System Air Conditioner
- 10 -
Dimensions
Installation plate
D
H
W
Indoor Unit
Split Type Indoor
Dimensions
Model
Dimension
Wmm(in)840(33)895(35.2)
Hmm(in)270(10.6)282(11.1)
Dmm(in)153(6)165(6.5)
Split Type
9 kBtu/h12 kBtu/h
- 11 -
Service Manual
W
D
L1
L2
L4
L3
H
L7L5L6
Dimensions
Outdoor Unit
MODEL
DIM
Wmm(in)870(34.3)
Hmm(in)655(25.8)
Dmm(in)320(12.6)
L1mm(in)370(14.6)
L2mm(in)25(1.0)
L3mm(in)775(30.5)
L4mm(in)25(1.0)
L5mm(in)546(21.5)
L6mm(in)160(6.3)
L7mm(in)160(6.3)
UE
18kBtu/h
Wall Mounted Multi-Zone Split System Air Conditioner
2. Wiring cable size must comply with the applicable local and national code.
3. Capacities are Net Capacities.
4. The specification may be subject to change without prior notice for purpose
of improvement.
Wall Mounted Multi-Zone Split System Air Conditioner
- 18 -
Installation
Type "A" screw and plastic anchor
Type "B" screw
Remote Control Holder
Installation plate
FigureFigureName
Screw driver
Electric Drill
Measuring Tape, Knife
Hole Core Drill
Adjustable Wrench
Torque wrench
Ohmmeter
Hexagonal wrench
Ammeter
Gas Leak Detector
Thermometer,
Level
Flaring Tool Set
Name
Read carefully and then follow step-by-step.
Installation Parts
Installation
Installation Tools
- 19 -
Service Manual
Installation
More than 20 cm
(7.9 inch)
More than 10 cm
(3.9 inch)
More than 10 cm
(3.9 inch)
More than 2.4m
(8 ft)
Selecting the best location
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.
3. Make sure that condensation drainage can be conveniently routed away.
4. Do not install near a doorway.
Ensure the unit is unobstructed, allow proper space on all sides
5.
according to the arrows and distance measurements in the figures.
6. Use a metal detector or stud finder to locate studs to
prevent unnecessary damage to the wall.
CAUTION: Install the indoor unit
on the wall where the height from
the floors more than 2.4 m (8 ft).
Outdoor unit
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.
Ensure the unit is unobstructed, allow proper space on all sides
2.
according to the arrows and distance measurements in the figures.
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.
Select a place so that the warm air and sound from
5.
the air conditioner does not disturb neighbors.
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.
18 / 24 kBtu/h
more than 30 cm
(11.8 inch)
more than 70 cm
(27.6 inch)
36 kBtu/h
more than 30 cm
(11.8 inch)
more than 30 cm
(11.8 inch)
more than 60 cm
(23.6 inch)
more than 30 cm
(11.8 inch)
Wall Mounted Multi-Zone Split System Air Conditioner
more than 70 cm
(27.6 inch)
more than 60 cm
(23.6 inch)
- 20 -
Piping length and elevation
h2
h2
h1
A
B
B
C
h2
h1
A
B
h1
h1
h1
Multi Piping Type
Installation
Capacity
Max total length
of all pipes
(A+B/A+B+C)
Max length of
each pipe
(A/B/C)
Min length of
each pipe
(A/B/C)
Max Elevation
between each
indoor unit and
outdoor unit (h1)
Max elevation
between indoor
units (h2)
18 kBtu30 m (100 ft)15 m (50 ft)3 m (10 ft)7.5 m (25 ft)7.5 m (25 ft)
24 kBtu30 m (100 ft)15 m (50 ft)3 m (10 ft)7.5 m (25 ft)7.5 m (25 ft)
36 kBtu45 m (150 ft)15 m (50 ft)3 m (10 ft)7.5 m (25 ft)7.5 m (25 ft)
Pipe Size
Indoor Capacity
GasLiquidStandard Length
Additional
Refrigerant
9 kBtu9.52 mm (3/8")6.35 mm (1/4")7.5 m (25 ft)20 g/m (0.22 oz/ft)
12 kBtu9.52 mm (3/8")6.35 mm (1/4")7.5 m (25 ft)20 g/m (0.22 oz/ft)
18 / 24 kBtu/h
36 kBtu/h
CAUTION: Capacity is based on standard length and maximum allowance length is on the
basis of reliability.
- 21 -
Service Manual
Installation
Installation Plate
Type "A" screw
Chassis
Hook
5-7 mm
(0.2"~0.3")
Indoor
WALL
Outdoor
Installing Installation Plate(Standard Type)
The wall you select should be strong and solid enough to
prevent vibration
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.
2. Measure the wall and mark the centerline. It is also
important to use caution regarding the location of the
installation plate, as routing the wiring through the wall is
typically done in this application. Drilling the hole through
the wall for piping connections must be done safely.
CHASSIS
9 kBtu/h50(1.97)105(4.13) 59(2.32) 105(4.13)
12 kBtu/h65(2.56)110(4.33) 85(3.35) 110(4.33)
ABCD
Distance (mm)
D
C
Ø70mm
Left rear pipingRight rear piping
Installation plate
B
A
Ø70mm
Drilling the hole in the wall
• Drill the piping hole with a Ø 70 mm (Ø 2.75 inch) hole core drill. Drill the piping hole at either the right or the left
with the hole slightly slanted to the outdoor side.
Wall Mounted Multi-Zone Split System Air Conditioner
- 22 -
Flaring Work and Connection of Piping
Copper
pipe
90°
Slanted Uneven Rough
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Flaring Work and Connection of Piping
Flaring work
The main cause for gas leakage is due to defects in flaring work. Carry out correct flaring work using the following procedures.
Cut the pipes
1. Use the copper pipe purchased locally.
2. Measure the distance between the indoor and the outdoor unit.
3. Cut the pipes a little longer than measured distance.
4. Cut the cable 1.5m (5.0ft) longer than the pipe length.
Burrs removal
1. Completely remove all burrs from the cut cross section of
pipe/tube.
2. 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.
Pipe
Reamer
Adding the Flare Nut
• Remove flare nuts attached to the indoor and outdoor unit,
then put them on the end of the copper pipe once you hav
completed burr removal (it is not possible to put them on after
the flaring work)
Flaring work
• Carry out flaring work using flaring tool as shown below.
• Firmly hold copper pipe in the proper size hole dimension of
the bar as shown in the table below.
Outside diameterA
mminchmm
Ø6.351/40~0.5
Ø9.523/80~0.5
Point down
Flare nut
Copper tube
- 23 -
Service Manual
Flaring Work and Connection of Piping
Inclined
Inside is shiny without scratches
Smooth all around
Even length
all around
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Check
1. Compare the flare work like the figure on the right.
2. If a flared section is defective, cut it off and repeat the flaring process again.
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 illustration on the
right) and pull the tubing and drain hose away from chassis.
For right rear piping
1. Route the indoor tubing and the drain hose in the direction
of rear right.
2.
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.
3. Tape the tubing, drain hose, and the connecting cable. Be
sure that the drain hose is located on the lowest side of the
bundle. Locating on the Upper side can cause the condensation to overflow in the drain pan inside the indoor unit.
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.
Drain hose
Tape
Connecting
pipe
Drain hose
Connecting cable
Wall Mounted Multi-Zone Split System Air Conditioner
- 24 -
4. Indoor unit installation
Drain hose
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 the indoor unit left and right.
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 piping to the indoor unit and drain hose
to drain pipe.
1. Align the center of the pipes and sufficiently tighten the
flare nut by hand.
3. Next, extend the indoor unit's drain hose.
Then attach the drain pipe.
Wrap the insulation material around the all connections.
1. 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.
2. Wrap the area which accommodates the rear piping housing section with vinyl tape.
3. Bundle the piping and drain hose together by wrapping
them with vinyl tape, enough to cover where they fit into
the rear piping housing section.
Wrench
Indoor unit tubing
Drain pipe
Connection pipe
Vinyl tape (wide)
Connecting cable
Open-end wrench (fixed)
Flare nut
Indoor unit drain hose
Vinyl tape(narrow)
Adhesive
Plastic bands
Insulation material
Wrap with vinyl tape
Vinyl tape(narrow)
Connection pipe
Indoor unit pipe
Pipe
- 25 -
Wrap with vinyl tape
Pipe
Vinyl tape(wide)
Drain hose
Service Manual
Flaring Work and Connection of Piping
For left rear piping
1. Route the indoor tubing and the drain hose to the required
piping hole position.
2. Insert the piping, drain hose, and the connecting cable into
the piping hole.
3.
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.
4. Tape the drain hose and the connecting cables.
5. Indoor unit installation
• Hang the indoor unit from the hooks at the top of the
installation plate.
• Insert the spacer. between the indoor unit and the instal-
lation plate to separate the bottom of the indoor unit from
the wall. (The spacer is used to ease installation and will
be removed later on per the installation instructions.)
Connecting
cable
Drain pipe
Indoor unit
Spacer
Installation plate
8cm
Connecting the piping to the indoor unit and the drain
hose to drain pipe.
1. Align the center of the pipes and sufficiently tighten the
flare nut by hand.