INSTALLATION
MANUAL
AQV09J Series
AQV12J Series
AQV18J Series
AQV24J Series
Split - type Air Conditioner
(Cooling and Heating)
DB98-27556A(1)
E
S
F
Safety Precautions
Keep this installation manual together with the user’s manual in a handy place so that you can find it whenever
you need to see it after reading this manual thoroughly.
Make sure to read the following safety precautions carefully before installation.
Make sure to observe the cautions specified in this manual.
Conduct a test run of the unit after installation and then explain all system functions to the owner.
The indications and meanings are as shown below.
This indicates the possibility of serious injury or death.
WARNING
Installation must be carried
out by a qualified installer.
Use the specified wires to
connect the indoor and
Perform the installation
securely referring to
outdoor units securely and
attach the wires firmly to the
terminal block connecting
sections so that the pressure
is not applied to the sections.
Inappropriate connection and
fixing could cause fire.
the installation manual.
Incomplete installation
could cause personal injury
due to fire, electric shock
and water leakage or from
the unit falling.
Installers are required to read
the general information
carefully for safety.
Do not put the unit near
dangerous substances to
prevent fire, explosion or
injury and do not expose
the unit to direct sunlight.
Attach the electrical cover
to the indoor and outdoor
unit securely. If not, it could
result in fire or electric
Avoid the use of an
extension cord and do not
share the power outlet with
other appliances. Incomplete
connection, defective
shock due to dust or water.
Do not install the unit by
yourself (owners).
insulation or exceeding the
permissible current may cause
electric shock or fire.
Make sure to use the part
provided or specified parts
for the installation work.
The use of defective parts
could cause an injury or
leakage of water due to a
fire, an electric shock, the
unit falling, etc.
Incorrect installation of the
unit could cause injury due
to fire, electric shock and
water leakage or from the
unit falling. Consult a dealer
or a qualified installer.
Make sure that the refrigerant
gas does not leak after
completing the installation.
If the refrigerant gas of
the indoor unit leaks and
comes into contact with the
fan heater, space heater or
stove, harmful substances
will be generated.
Install the unit in a place
where it is strong enough
to hold the product weight.
When installed in place
where it is not strong
enough to withhold the
product weight, the unit
could fall and cause injury.
Make sure to turn off
the main power when
setting up the indoor unit
electrical circuit or power
cords.
There is a risk of electric
shock.
E-3
This indicates the possibility of serious injury or death.
WARNING
The unit should be installed in
accordance with the National
Electrical regulations.
Check if the voltage and the
frequency of the main power
supply are those required for
the unit to be installed and
check the connection.
Do not attempt to repair,
move, modify or reinstall
the unit on your own. Make
sure that these installations
are carried out by qualified
personnel to avoid electric
shock or fire.
Ensure that the national safety
code requirements have been
followed for the main supply
circuit. Ensure that a properly
sized and connected ground
wire is in place.
Make sure that properly sized
disconnecting and safety
switches are installed.
Use the unit on a single outlet
circuit. Do not share the power
outlet with other appliances.
Obtain the consent by a
qualified installer before
connecting the unit to the
power supply system.
This indicates the possibility of serious injury or damage to environments when
operated incorrectly.
CAUTION
Check the unit for damage
that may have taken place
during transportation and do
not install or use damaged
equipment.
Grounding the unit.
Fasten a flare nut with a
torque wrench as specified
in this installation manual.
When fastened too tight,
a flare nut may break after
a long period of time and
cause refrigerant leakage.
Do not connect the ground
to a gas pipe, water pipe,
lightning rod or telephone
grounding. Defective
grounding could cause
electric shock.
All of the manufacturing and
packaging material used for
your new appliance are
compatible with the
environment and can be
recycled.
Do not install the unit in a
place where it is exposed to
inflammable gas leakage.
There is a risk of explosion.
To prevent injury when
accidentally touching the
indoor unit fan, install the
indoor unit on a place higher
than 8.2ft (2.5m).
Dispose of the packaging
material in accordance with
the local requirements.
Install a ground leakage
breaker depending on the
installation place (where it is
humid). If not, it may cause
electric shock.
The air conditioner must be
installed according to the
national electrical
regulations.
This product is an air
conditioning system and
contains a coolant that must
be recovered and disposed
of in an appropriate way by
qualified personnel. At the
end of the life cycle, take it to
a proper recycling or disposal
center or return it to the
dealer so that it can be
Perform the drainage/piping
work securely according to
the installation manual.
If not, water could drop from
the unit and household
goods could get wet and
damaged.
The maximum input power &
current is measured
according to the IEC standard
and the input power &
current is measured
according to the ISO
standard.
disposed correctly.
E-4
PREPARING FOR INSTALLATION
Choosing the Installation Location
Indoor Unit
Outdoor Unit
Where airflow is not blocked
Where cool air can be distributed throughout the room
Install the refrigerant piping length and the height
difference of both indoor and outdoor units as
indicated in the installation diagram
Wall that prevents vibration and is strong enough to hold the
product weight
Where it is not exposed to strong wind
Well ventilated and dustless places
Out of the direct sunlight and rain
Where neighbors are not annoyed by operation sound or hot air
Solid wall or support that prevents vibration and is strong
enough to hold the product weight
Where there is no risk of flammable gas leakage
When installing the unit at a high place be sure to fix the unit
legs
9.9ft (3m) or more away from the TV or radio (to prevent the
screen from being distorted or noise from being generated)
Install the unit horizontally
Out of the direct sunlight
3.3ft (1m) or more away from the TV or radio
(to prevent the screen from being distorted or noise from being
generated)
As far away as possible from fluorescent and incandescent lights
(so that the remote control can be operated well)
A place where the air filter can be replaced easily
CAUTION
Avoid the following places to prevent malfunction of the unit
- Where there is machine oil
- Where sulfide gas exists
- Salty environment such as the seaside areas
- Other special atmosphere areas
Observe the clearances and maximum lengths as seen in the picture below when installing the air conditioner.
11.8 inch (300mm) or more
4.9 inch (125mm)
or more
4.9 inch (125mm)
or more
Wrap the refrigerant pipes and the drain
hose with the absorbent pad and vinyl
tape. Refer to page 15 for further details.
You can select the direction
of draining. (left or right)
“B”maximum total
pipe Height
23.6 inch (600mm)
minimum
“A”maximum
total pipe length
11.8 inch (300mm)
minimum
11.8 inch (300mm)
minimum
23.6 inch (600mm)
minimum
Model
AQV09J
AQV12J
AQV18J
AQV24J
“A”
“B”
26.2ft(8m)
49.2ft(15m)
98.4ft(30m) 49.2ft(15m)
The appearance of the unit may be different from the diagram depending on the model.
E-5
PREPARING FOR INSTALLATION
Accessories
The following accessories are supplied with the air conditioner:
The number of each accessory is indicated in parentheses.
Accessories in the Indoor Unit Case
Installation Plate (1)
Remote Control (1)
Batteries for
User’s Manual (1)
Installation Manual (1)
Service Manual (1)
Remote Control (2)
Accessories in the Outdoor Unit Case
Drain Plug (1)
Rubber Leg (4)
The flare nuts are attached to the end of each pipe of an evaporator or a service port.
Use the nuts when connecting the pipes.
E-6
INSTALLING THE AIR CONDTIONER
Fixing the Installation Plate
Before fixing the installation plate to the wall or window frame, you must
determine the position of the 2.56 inch (65mm) hole through which the cable,
pipe and hose pass to connect the indoor unit to the outdoor unit.
When facing the wall, the pipe and cable can be connected from the:
Right
Left
Underside (right)
Rear (right or left)
1
2
Determine the position of the pipe and drain hose hole as seen in the picture
and drill the hole with an inner diameter of 2.56 inch (65mm) so that it slants
slightly downwards.
Pipe hole
Ø2.56inch(65mm)
If you fix the indoor unit to a...
Wall
Follow step(s)...
3.
A
C
Window frame
4 to 6.
AQV09J
AQV12J
AQV18J
AQV24J
Fix the installation plate to the wall giving attention to the weight of the
indoor unit.
3
inch
mm
120
27
inch
mm
140
34
If you mount the plate to a concrete wall with anchor bolts, the anchor
bolts must not project more than 0.8 inch (20mm).
A
B
C
4.72
1.06
2.68
5.51
1.34
2.68
68
68
Determine the positions of the wooden uprights to be attached to the
window frame.
4
5
6
Attach the wooden uprights to the window frame giving attention to the
weight of the indoor unit.
Attach the installation plate to the wooden uprights using tapping screws as
seen in the picture.
Purging the Indoor Unit
Upon delivery, there may be inert gas inside the indoor unit. Purge the gas
from the indoor unit before connecting the assembly pipe.
Unscrew the caps at the end of each pipe.
Result: All inert gas exhausts from the indoor unit.
To prevent dirt or foreign substances from getting into the pipes during
installation, do NOT remove the caps completely until you are ready to
connect the pipes.
E-7
INSTALLING THE AIR CONDTIONER
Installing and Connecting the Assembly Pipe of the Indoor Unit
There are 2 refrigerant pipes of different diameters:
The smaller one is for the liquid refrigerant
The larger one is for the gas refrigerant
A short pipe is already fitted to the air conditioner. You may need to extend the
pipe using the assembly pipe. (optional)
The connection procedure for the refrigerant pipe varies according to the exit
position of the pipe when facing the wall:
Right(A)
Left(B)
A
B
Underside(C)
Rear
C
1
Cut out the appropriate knock-out piece on the rear of the indoor unit unless
you connect the pipe directly from the rear.
Smooth the cut edges.
2
3
Remove the protection caps of the pipes and connect the assembly pipe
to each pipe. Tighten the nuts first with your hands, and then with a torque
wrench, applying the following torque:
Outer Diameter
1/4 inch (6.35mm)
3/8 inch (9.52mm)
1/2 inch (12.80mm)
5/8 inch (15.88mm)
Torque
10.1~12.3ft
18.1~20.3ft
27.5~30.4ft
31.8~34.7ft
•
•
•
•
lb (140~170 kgf
lb (250~280 kgf
lb (380~420 kgf
lb (440~480 kgf
•cm)
•cm)
•cm)
•cm)
If you want to shorten or extend pipes, refer to page 9.
Cut off the remaining foam insulation.
4
5
If necessary, bend the pipe to fit along the bottom of the indoor unit.
Then pull it out through the appropriate hole.
The pipe should not project from the rear of the indoor unit.
The bending radius should be 4 inch(100mm) or more.
Pass the pipe through the hole in the wall.
6
7
For further details on how to connect to the outdoor unit and purge the air,
refer to page 13.
The pipe will be insulated and fixed permanently into position after
finishing the installation and the gas leak test; refer to page 14 for
further details.
E-8
INSTALLING THE AIR CONDTIONER
Cutting or Extending the Pipe
A 24.6ft (7.5m) pipe is supplied with the air conditioner. (optional)
The length of the pipe can be:
Model
AQV09J
AQV12J
AQV18J
AQV24J
“A”
Extended up to “A”
Shortened as required
49.2ft(15m)
If you need a pipe longer than 24.6ft (7.5m):
98.4ft(30m)
You must extend the assembly cable.
For further details on how much refrigerant(R410A) should be
added, refer to Page 13.
1
2
Make sure that you have the required tools (pipe cutter, reamer, flaring tool
and pipe holder.)
If you want to shorten the pipe, cut it using a pipe cutter, ensuring that the cut
edge remains at 90° with the side of the pipe (see examples of correctly and
incorrectly cut edges below.)
Oblique
Rough
Burr
To prevent a gas leak, remove all burrs at the cut edge of the pipe using a
reamer.
3
4
Put a flare nut slightly into the pipe and modify the flare.
Outer Diameter (D)
Depth (A)
1/4 inch (6.35mm)
3/8 inch (9.52mm)
1/2 inch (12.80mm)
5/8 inch (15.88mm)
0.05 inch (1.3mm)
0.07 inch (1.8mm)
0.08 inch (2.0mm)
0.09 inch (2.2mm)
Check if you flared the pipe correctly (see examples of incorrectly flared pipes
below.)
5
Inclined
Damaged Surface
Cracked
Uneven Thickness
Align the pipes to connect them easily. Tighten the flare nuts first with your
hands, and then with a torque wrench, applying the following torque:
6
7
Outer Diameter
Torque
1/4 inch (6.35mm)
3/8 inch (9.52mm)
1/2 inch (12.80mm)
5/8 inch (15.88mm)
10.1~12.3ft
18.1~20.3ft
27.5~30.4ft
31.8~34.7ft
•
•
•
•
lb (140~170 kgf
lb (250~280 kgf
lb (380~420 kgf
lb (440~480 kgf
•cm)
•cm)
•cm)
•cm)
For further details on how to connect to the outdoor unit and purge the air,
refer to page 13.
E-9
INSTALLING THE AIR CONDTIONER
Installing and Connecting the Drain Hose of the Indoor Unit
When installing the drain hose for the indoor unit, check if condensation draining is adequate.
When passing the drain hose through the 65-mm hole drilled in the wall, check the following:
2inch
(50mm)
less
Ditch
Do NOT place the end
of the drain hose in a
hollow.
The hose must
NOT slant upwards.
Do NOT bend the hose
in different directions.
Keep a clearance of
The end of the drain
hose must NOT be
placed under water.
at least 2inch (50mm)
between the end of the
hose and the ground.
Drain hose installation:
1
2
Shield
If necessary, connect the 6.6 ft (2m) extension drain hose to the drain hose.
If you use the extension drain hose, insulate the inside of the extension drain
hose with a shield.
Drain hose
Extension drain hose
Fit the drain hose into 1 of 2 drain hose holes, then fix the end of the drain
hose tightly with a clamp.
3
If you don’t use the other drain hose hole, block it with a rubber stopper.
Pass the drain hose under the refrigerant pipe, keeping the drain hose tight.
4
5
Pass the drain hose through the hole in the wall. Check if it slants downwards
as seen in the picture.
The hose will be fixed permanently into position after finishing
the installation and the gas leak test; refer to page 14 for further details.
E-10
INSTALLING THE AIR CONDTIONER
Changing Direction of the Drain Hose
You can select the direction of the drain hose, depending on where you want to
install the indoor unit.
1
2
3
Detach the rubber cap with the flyer.
Screws hole
Screw
Detach the drain hose by pulling it and turning to the left.
Drain hose
Insert the drain hose by fixing it into the groove of the drain hose and the
outlet of the drain pan.
Drain pan outlet
Rubber cap
Attach the rubber cap with a screwdriver by turning it to the right until it fixes
to the end of the groove.
4
One of the diagrams has an illustration with the words “Screws hole” that
should be changed to “Screw hole.”
Installing and Connecting the Drain Hose of the Outdoor Unit
While heating, ice may accumulate. During the process of defrosting, check if
condensation draining is adequate. For adequate draining, do the following:
1
Insert the drain plug into the drain hole on the underside of the outdoor unit.
There are “A” drain holes on the underside. You can use any hole for
your convenience.
Model
AQV09J
AQV12J
AQV18J
AQV24J
“A”
Drain hole
3
1
Connect a drain hose to the drain plug.
2
3
Ensure that condensation draining is adequate.
E-11
INSTALLING THE AIR CONDTIONER
Connecting the Assembly Cable
The outdoor unit is powered from the indoor unit through the assembly cable.
If the outdoor unit is more than 24.6ft (7.5m) away from the indoor unit, you
must extend the cable. The maximum length of the cable is “A”.
Model
AQV09J
AQV12J
AQV18J
AQV24J
“A”
49.2ft(15m)
98.4ft(30m)
1
2
Extend the assembly cable if necessary.
Open the front grille by pulling on the tabs on the lower right and left sides of
the indoor unit.
Remove the screw securing the connector cover.
3
4
Pass the assembly cable through the rear of the indoor unit and connect
the assembly cable to terminals as seen in the picture.
Each wire is labeled with the corresponding terminal number.
09/12/18/24
Indoor unit
Pass the other end of the cable through the 65mm hole in the wall.
Close the connector cover, tightening the screw carefully.
Close the front grille.
5
6
7
8
9
1(L) 2(N) F1 F2
1(L)
1(L)
2(N)
F1
F2
E
E
2(N)
F1
L
F2
N
Remove the terminal board cover on the side of the outdoor unit.
Connect the cables to the terminals as seen in the picture.
F1 F2 1(L) 2(N)
Outdoor unit
Each wire is labeled with the corresponding terminal number.
Please make sure to use copper supply wires.
N
E
L
Connect the grounding conductor to the grounding terminals.
Close the terminal board cover, tightening the screw carefully.
Connect the power cable to the indoor unit.
10
11
12
Circuit Breaker
(Main power)
S crews on terminal block must not
be unscrewed with the torque less
than 0.87ft•lb (12 kgf•cm).
In Russia and Europe, consult with the supply authority to determine
the supply system impedance before installation.
Power cable specification
Use
AWG
Cross sectional area (mm²)
Main Power Supply 3-wire
power cable
13 or fewer
2.5 or more
Indoor Power Supply
3-wire power cable
16 or fewer
16 or fewer
1.5 or more
1.5 or more
2-wire assembly cable
T he designs and shape are subject to
change according to the model.
Connect the power cable to the auxiliary circuit breaker.
If every pole fails to connect to the power supply, it must be
incorporated in a wire with a contact opening of ≥0.118inch(3mm).
E-12
COMPLETING THE INSTALLATION
Purging the Connected Pipes
The outdoor unit is loaded with sufficient R410A refrigerant for a 24.6ft (7.5m)
pipe You should purge the air in the indoor unit and in the pipe.
If air remains in the refrigerant pipes, it affects the compressor. It may cause
reduction of cooling capacity and malfunction.
Refrigerant for air purging is not charged in the outdoor unit.
Use Vacuum Pump as seen in the picture.
1
2
Connect each assembly pipe to the appropriate valve on the outdoor unit and
tighten the flare nut.
Outdoor unit
Indoor unit
Gas pipe side
Tighten the flare nut first with your hands, and then with a torque wrench,
applying the following torque:
Liquid pipe side
Outer Diameter
Torque
1/4 inch (6.35mm)
3/8 inch (9.52mm)
1/2 inch (12.80mm)
5/8 inch (15.88mm)
10.1~12.3ft
18.1~20.3ft
27.5~30.4ft
31.8~34.7ft
•
•
•
•
lb (140~170 kgf
lb (250~280 kgf
lb (380~420 kgf
lb (440~480 kgf
•cm)
•cm)
•cm)
•cm)
Connect the charging hose of the low-pressure side of manifold gauge to a
gas service port as seen in the picture.
3
The valve connection port of low-pressure side is 5/16 inch(7.94mm).
Open the valve of the low pressure side of manifold gauge counterclockwise.
4
5
Purge the air in the connected pipes using the vacuum pump for about
10 minutes.
- Close the valve of the low pressure side of manifold gauge clockwise.
- Make sure that pressure gauge shows -0.1MPa(-76cmHg) after about
10 minutes.
This procedure is very important to avoid a gas leak.
Vacuum
Pump
- Turn off the vacuum pump.
- Remove the hose of the low pressure side of manifold gauge.
Set a valve cork of liquid and gas service port to the open position.
6
7
Valve stem
Stem cap
Mount the valve stem nuts and the service port cap to the valve, and tighten
•
•
them at the torque of 13.2ft lb (183kgf cm) with a torque wrench.
A
(gas)
Check for a gas leak paying particular attention to the 3-way valve’s stem nuts
and to the service port cap.
8
9
B
5/16 inch (7.94mm)
(liquid)
For further detailed information how to check the low pressure after
installation, Please refer to the Service Manual.
Adding Refrigerant
You must add refrigerant if the pipe is longer than 24.6ft (7.5m).
Then…
If you use a
pipe…
AQV09J/AQV12J
AQV18J/AQV24J
You can install 49.2ft(15m)
of connecting pipe to the
maximum, and you don’t
have to charge any additional
refrigerant.
You can install 98.4ft(30m) of connecting
pipe to the maximum, and you should
charge 0.16oz(15g) of refrigerant R410A
additionalyfor each extra feet(metre).
longer than
24.6ft (7.5m)
shorter than
24.6ft (7.5m)
The purge time is normal. The purge time is normal.
E-13
Refer to the Service Manual for further details.
COMPLETING THE INSTALLATION
Performing the Gas Leak Tests
Make sure to check for gas leaks before completing the installation process
C
D
(connecting the assembly pipe and hose between indoor unit and outdoor
unit, insulating the cables, hose and pipe, and fixing the indoor unit to the
installation plate)
To check for gas leaks on the...
Using a leak detector, check the...
Indoor unit
Flare nuts at the end of sections
C and D.
Outdoor unit
Valves on sections A and B.
A
B
E-14
COMPLETING THE INSTALLATION
Fixing the Indoor Unit in Place
After checking for gas leaks in the system, insulate the pipe, hose and cables.
Then place the indoor unit on the installation plate.
1
To avoid condensation problems, place heat-resistant polyethylene foam
separately around each refrigerant pipe in the lower part of the indoor unit.
Wrap the refrigerant pipe and the drain hose in the rear of the indoor unit with
the absorbent pad.
2
Wind the pipe and hose three times to the end of the indoor unit with the
absorbent pad. (0.79 inch(20mm) interval)
Wind the pipe, assembly cable and drain hose with insulation tape.
3
4
Place the bundle (the pipe, assembly cable and drain hose) in the lower part of
the indoor unit carefully so it doesn’t project from the rear of the indoor unit.
Installation plate
Hook the indoor unit to the installation plate and move the unit to the right
and left until it is securely in place.
5
Wrap the rest of the pipe with vinyl tape.
6
7
Attach the pipe to the wall using clamps (optional).
E-15
COMPLETING THE INSTALLATION
Fixing the Outdoor Unit in Place
Install the outdoor unit to a stable base to avoid the generation of noise and
vibration, especially when installing the unit close to a neighbor.
If you install the outdoor unit in a place exposed to strong winds or at a height,
fix it to an appropriate support (wall or ground).
“ X ”
1
Place the outdoor unit as indicated on the top of the unit to let the
discharged air out properly.
Fix the outdoor unit to an appropriate support using anchor bolts.
2
3
Rubber leg
If the outdoor unit is exposed to strong winds, install shield plates around the
outdoor unit so that the fan can operate correctly.
Model
AQV09J
AQV12J
AQV18J
AQV24J
“X”
“Y”
Secure the rubber leg to prevent the generation of noise and vibration.
1.77ft(538mm) 0.95ft(290mm)
2.17ft(660mm) 1.12ft(340mm)
Final Check and Trial Operation
To complete the installation, perform the following checks and tests to ensure
that the air conditioner operates correctly.
1
Check the following:
Strength of the installation site
Tightness of pipe connection to detect gas leak
Electric wiring connection
Heat-resistant insulation of the pipe
Drainage
Grounding conductor connection
Correct operation (follow the steps below)
Press the
button and check the following:
2
3
4
The indicator on the indoor unit lights up.
The airflow blade opens and the fan gears up for operation.
Press any button and check the following:
The appropriate indicator lights up and the air conditioner operates
according to the selected mode or function.
Press the button and check the following:
The airflow blades work properly.
E-16
COMPLETING THE INSTALLATION
Providing Information for User
After finishing the installation of the air conditioner, explain the following to
the user: (refer to appropriate pages in the User’s Manual.)
1
2
3
4
5
6
How to start and stop the air conditioner
How to select the modes and functions
How to adjust the temperature and fan speed
How to adjust the airflow direction
How to set the timers
How to clean and replace the filters
When you complete the installation successfully, hand over the User’s
Manual and this Installation Manual to the user for storage in a handy and
safe place.
E-17
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