Samsung AQV09NSeries User manual

ENGLISH
Split - type Air Conditioner
(Cooling and Heating)
INSTALLATION
MANUAL
AQV09N Series
AQV12N Series
AQV18N Series
AQV24N Series
ESPAÑOLFRANÇAIS
DB98-29790A(1)
SE F

E-1
ENGLISH

E-2
Contents
PreParing for installation
 SafetyPrecautions .................................................. 3
 Choosing the Installation Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
 Accessories ......................................................... 8
installing the air conditioner
 FixingtheInstallationPlate ......................................... 9
 PurgingtheIndoorUnit ............................................. 9
 Installing and Connecting the Assembly Pipe of the Indoor Unit . . . 10
 Cutting or Extending the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
 Installing and Connecting the Drain Hose of the Indoor Unit . . . . . . 12
 Changing Direction of the Drain Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
 Installing and Connecting the Drain Hose of the Outdoor Unit . . . . . 13
 Connecting the Assembly Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
comPleting the installation
 PurgingtheConnectedPipes ....................................... 15
 Performing the Gas Leak Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
 Fixing the Indoor Unit in Place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
 Fixing the Outdoor Unit in Place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
 Final Check andTrial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
 Providing Information for User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

E-3
ENGLISH
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.
WARNING
This indicates the possibility of serious injury or death.

Installation must be carried
out by a qualified installer.

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.
Do not install the unit by
yourself (owners).
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.
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.
The units must be installed
according to distances
declared, in order to permit
accessibility from each side,
either to guarantee correct
operation of maintenance
or repairing products. The
unit’sparts must be reach-
able
and removable completely
under safety condition
(for people or things).

Use the specified wires to
connect the indoor and
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.

Avoid the use of an
extension cord and do not
share the power outlet with
other appliances. Incomplete
connection, defective
insulation or exceeding the
permissible current may cause
electric shock or fire.

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.
Perform the installation
securely referring to
the installation manual.
Incomplete installation
could cause personal injury
due to fire, electric shock
and water leakage or from
the unit falling.
Attach the electrical cover
to the indoor and outdoor
unit securely. If not, it could
result in fire or electric
shock due to dust or water.
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.
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-4
CAUTION
This indicates the possibility of serious injury or damage to environments when
operated incorrectly.

Check the unit for damage
that may have taken place
during transportation and do
not install or use damaged
equipment.

All of the manufacturing and
packaging material used for
your new appliance are
compatible with the
environment and can be
recycled.

Dispose of the packaging
material in accordance with
the local requirements.

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
disposed correctly.
Grounding the unit.
Do not connect the ground
to a gas pipe, water pipe,
lightning rod or telephone
grounding. Defective
grounding could cause
electric shock.

Do not install the unit in a
place where it is exposed to
inflammable gas leakage.
There is a risk of explosion.

Install a ground leakage
breaker depending on the
installation place (where it is
humid). If not, it may cause
electric shock.

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.
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.

To prevent injury when
accidentally touching the
indoor unit fan, install the
indoor unit on a place higher
than 8.2ft (2.5m).

The air conditioner must be
installed according to the
national electrical
regulations.

The maximum input power &
current is measured
according to the IEC standard
and the input power &
current is measured
according to the ISO
standard.
WARNING
This indicates the possibility of serious injury or death.

The unit should be installed in
accordance with the National
Electrical regulations.

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.

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.

Make sure that properly sized
disconnecting and safety
switches are installed.
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.

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.

E-5
ENGLISH
Choosing the Installation Location
 Avoid the following places to prevent malfunction of the unit
- Where there is machine oil - Salty environment such as the seaside areas
- Where sulfide gas exists - Other special atmosphere areas
CAUTION
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
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
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
A wall availability from the windows of the living environments
of others that does not create emissions of hot air and noise,
with values exceeding the emission limits set by the noise
classification and differential limits set by law.
PreParing for installation
Observe the clearances and maximum lengths as seen in the picture below when installing the air conditioner.
4.9 inch (125mm)
or more
11.8 inch (300mm) or more
4.9 inch (125mm)
or more
23.6 inch (600mm)
minimum
11.8 inch (300mm)
minimum
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)
The appearance of the unit may be different from the diagram depending on the model.
23.6 inch (600mm)
minimum
11.8 inch (300mm)
minimum
“A” maximum
total pipe length
“B”maximum total
pipe Height
Model “A” “B”
AQV09N
AQV12N 49.2ft(15m) 26.2ft(8m)
AQV18N
AQV24N 98.4ft(30m) 49.2ft(15m)

E-6
PreParing for installation
11.8 (300) or more
k When the air outlet is opposite the wall
59.1(1500) or more
k When the air outlet is towards the wall
5.9(150) or more 23.6(600) or more
k When 3 sides of the outdoor unit are
blocked by the wall
78.7(2000) or more
k The upper part of the outdoor unit and
the air outlet is towards the wall
19.7(500) or more
11.8(300 ) or more
k The upper part of the outdoor unit and
the air outlet is opposite the wall
k When front and rear side of the outdoor
unit is towards the wall
Unit :inch( mm)
Space Requirements for Outdoor Unit
When installing 1 outdoor unit
11.8 (300) or more
59.1(1500) or more
59.1(1500) or more 11.8 (300) or more
Choosing the Installation Location(Continued)

E-7
ENGLISH
PreParing for installation
Unit : inch(mm)
When the air outlet is towards the wall
11.8(300) or more
59.1(1500) or more 7.9(200) or more
118.1(3000) or more
23.6(600) or more
When 3 sides of the outdoor unit are blocked by the wall
When front and rear side of the outdoor unit is towards the wall
When front and rear side of the outdoor unit is towards the wall
When installing more than 1 outdoor unit
19.7(500) or more
k The upper part of the outdoor unit and
the air outlet is opposite the wall
59.1(1500) or more
11.8 (300) or more
23.6(600) or more 23.6(600) or more
23.6(600) or more 23.6(600) or more
11.8 (300) or more
59.1(1500) or more
23.6(600) or more 118.1(3000) or more
11.8(300) or more
11.8(300) or more
19.7(500) or more
Choosing the Installation Location(Continued)

E-8
Accessories
The following accessories are supplied with the air conditioner:
The number of each accessory is indicated in parentheses.
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.
Accessories in the Outdoor Unit Case
Accessories in the Indoor Unit Case
Installation Plate (1) Remote Control (1)
Batteries for
Remote Control (2)
User’s Manual (1) Installation Manual (1)
PreParing for installation
Drain Plug (1) Rubber Leg (4)
Service Manual (1)

E-9
ENGLISH
Fixing the Installation Plate
Purging the Indoor Unit
The indoor unit is supplied with inert gas (nitrogen).
Before installing the unit, check if nitrogen gas flow out of indoor unit.
If this one isn’t true, DO NOT INSTALL THE UNIT since leakage could be inside
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.
installing the air condtioner
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
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.
2If you fix the indoor unit to a... Follow step(s)...
Wall 3.
Window frame 4 to 6.
3
Fix the installation plate to the wall giving attention to the weight of the
indoor unit.
 If you mount the plate to a concrete wall with anchor bolts, the anchor
bolts must not project more than 0.8 inch (20mm).
4
Determine the positions of the wooden uprights to be attached to the
window frame.
5
Attach the wooden uprights to the window frame giving attention to the
weight of the indoor unit.
6
Attach the installation plate to the wooden uprights using tapping screws as
seen in the picture.
A
B B
C
Pipe hole
Ø2.56inch(65mm)
AQV09N
AQV12N
AQV18N
AQV24N
inch mm inch mm
A4.72 120 5.51 140
B1.06 27 1.34 34
C2.68 68 2.68 68

E-10
installing the air condtioner
Installing and Connecting the Assembly Pipe of the Indoor Unit
Connect indoor and outdoor units with field-supplied copper pipes by means
of flare connections. Use insulated seamless refrigeration grade pipe only, (Cu
DHP type according to ISO1337), degreased and deoxidized, suitable for oper-
ating pressures of at least 4200 kPa and for burst pressure of at least 20700
kPa. Under no circumstances must sanitary type copper pipe be used.
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)
Underside(C)
Rear
1
Cut out the appropriate knock-out piece on the rear of the indoor unit unless
you connect the pipe directly from the rear.
2
Smooth the cut edges.
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 Torque
1/4 inch (6.35mm)
10.1~12.3ft • lb (140~170 kgf • cm)
3/8 inch (9.52mm) 18.1~20.3ft • lb (250~280 kgf • cm)
1/2 inch (12.80mm) 27.5~30.4ft • lb (380~420 kgf • cm)
5/8 inch (15.88mm) 31.8~34.7ft • lb (440~480 kgf • cm)
 If you want to shorten or extend pipes, refer to page 9.
4
Cut off the remaining foam insulation.
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.
6
Pass the pipe through the hole in the wall.
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.
DO NOT WALL UP THE PIPE CONNECTION !
All refrigerant pipe connection must be easy accessible and serviceable.
B
A
C

E-11
ENGLISH
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:
Extended up to “A”
Shortened as required
If you need a pipe longer than 24.6ft (7.5m):
You must extend the assembly cable.
For further details on how much refrigerant(R410A) should be
added, refer to Page 13.
1
Make sure that you have the required tools (pipe cutter, reamer, flaring tool
and pipe holder.)
2
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
3
To prevent a gas leak, remove all burrs at the cut edge of the pipe using a
reamer.
4
Put a flare nut slightly into the pipe and modify the flare.
Outer Diameter (D)
Depth (A)
1/4 inch (6.35mm) 0.05 inch (1.3mm)
3/8 inch (9.52mm) 0.07 inch (1.8mm)
1/2 inch (12.80mm) 0.08 inch (2.0mm)
5/8 inch (15.88mm) 0.09 inch (2.2mm)
5
Check if you flared the pipe correctly (see examples of incorrectly flared pipes
below.)
Inclined Damaged Surface Cracked Uneven Thickness
6
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:
Outer Diameter Torque
1/4 inch (6.35mm)
10.1~12.3ft • lb (140~170 kgf • cm)
3/8 inch (9.52mm) 18.1~20.3ft • lb (250~280 kgf • cm)
1/2 inch (12.80mm) 27.5~30.4ft • lb (380~420 kgf • cm)
5/8 inch (15.88mm) 31.8~34.7ft • lb (440~480 kgf • cm)
Excessive torque can be cause of gas leakage.
In case brazing the pipe, the nitrogen gas must be blown into the pipe (50
Pa). The joint must be accessible and serviceable.
7
For further details on how to connect to the outdoor unit and purge the air,
refer to page 13.
installing the air condtioner
Model “A”
AQV09N
AQV12N 49.2ft(15m)
AQV18N
AQV24N 98.4ft(30m)

E-12
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:
Drain hose installation:
1
If necessary, connect the 6.6 ft (2m) extension drain hose to the drain hose.
2
If you use the extension drain hose, insulate the inside of the extension drain
hose with a shield.
3
Fit the drain hose into 1 of 2 drain hose holes, then fix the end of the drain
hose tightly with a clamp.
 If you don’t use the other drain hose hole, block it with a rubber stopper.
4
Pass the drain hose under the refrigerant pipe, keeping the drain hose tight.
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.
DO NOT WALL UP THE DRAIN HOSE CONNECTION !
Drain hose connection must be easy accessible and serviceable
Shield
Drain hose Extension drain hose
The hose must
NOT slant upwards.
The end of the drain
hose must NOT be
placed under water.
Do NOT bend the hose
in different directions.
Keep a clearance of
at least 2inch (50mm)
between the end of the
hose and the ground.
Do NOT place the end
of the drain hose in a
hollow.
2inch
(50mm)
less
Ditch

E-13
ENGLISH
installing the air condtioner
Rubber cap
Drain pan outlet
Drain hose
Screws hole
Screw
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
Detach the rubber cap with the flyer.
2
Detach the drain hose by pulling it and turning to the left.
3
Insert the drain hose by fixing it into the groove of the drain hose and the
outlet of the drain pan.
4
Attach the rubber cap with a screwdriver by turning it to the right until it fixes
to the end of the groove.
One of the diagrams has an illustration with the words “Screws hole” that
should be changed to “Screw hole.”
Drain 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.
2
Connect a drain hose to the drain plug.
3
Ensure that condensation draining is adequate.
Model “A”
AQV09N
AQV12N 3
AQV18N
AQV24N 1

E-14
installing the air condtioner
When you install the unit, make first refrigerant connections and then electrical
connections. Connect the air conditioner to grounding system before
performing the electrical connection. If unit is uninstalled first disconnect
electrical cables, then refrigerant connections.
1
Extend the assembly cable if necessary.
2
Open the front grille by pulling on the tabs on the lower right and left sides of
the indoor unit.
3
Remove the screw securing the connector cover.
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.
5
Pass the other end of the cable through the 65mm hole in the wall.
6
Close the connector cover, tightening the screw carefully.
7
Close the front grille.
8
Remove the terminal board cover on the side of the outdoor unit.
9
Connect the cables to the terminals as seen in the picture.
 Each wire is labeled with the corresponding terminal number.
 Please make sure to use copper supply wires.
10
Connect the grounding conductor to the grounding terminals.
11
Close the terminal board cover, tightening the screw carefully.
12
Connect the power cable to the indoor unit.
 In Russia and Europe, consult with the supply authority to determine
the supply system impedance before installation.
Connecting the Assembly Cable
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
1.5 or more
2-wire assembly cable
16 or fewer
1.5 or more
 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).
NL
1(L) 2(N) F1 F2
1(L) 2(N)F1 F2
E1
E
LNE
2(N)
1(L)
F1 F2
2(N)
1(L)
F1 F2
Indoor unit
Screws on terminal block must not
be unscrewed with the torque less
than 0.87ft•lb (12 kgf•cm).
Outdoor unit

The designs and shape are subject to
change according to the model.
Model “A”
AQV09N
AQV12N 49.2ft(15m)
AQV18N
AQV24N 98.4ft(30m)
Circuit Breaker
(Main power)
09/12/18/24

E-15
ENGLISH
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
Connect each assembly pipe to the appropriate valve on the outdoor unit and
tighten the flare nut.
2
Tighten the flare nut first with your hands, and then with a torque wrench,
applying the following torque:
Outer Diameter Torque
1/4 inch (6.35mm)
10.1~12.3ft • lb (140~170 kgf • cm)
3/8 inch (9.52mm) 18.1~20.3ft • lb (250~280 kgf • cm)
1/2 inch (12.80mm) 27.5~30.4ft • lb (380~420 kgf • cm)
5/8 inch (15.88mm) 31.8~34.7ft • lb (440~480 kgf • cm)
3
Connect the charging hose of the low-pressure side of manifold gauge to a
gas service port as seen in the picture.
 The valve connection port of low-pressure side is 5/16 inch(7.94mm).
4
Open the valve of the low pressure side of manifold gauge counterclockwise.
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.
- Turn off the vacuum pump.
- Remove the hose of the low pressure side of manifold gauge.
6
Set a valve cork of liquid and gas service port to the open position.
7
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.
8
Check for a gas leak paying particular attention to the 3-way valve’s stem nuts
and to the service port cap.
9
For further detailed information how to check the low pressure after
installation, Please refer to the Service Manual.
Outdoor unit Indoor unit
Gas pipe side
Liquid pipe side
Vacuum
Pump
Adding Refrigerant
You must add refrigerant if the pipe is longer than 24.6ft (7.5m).
Refer to the Service Manual for further details.
B
(liquid)
Stem cap
Valve stem
A
(gas)
5/16 inch (7.94mm)
If you use a
pipe…
Then…
AQV09N

/AQV12N

AQV18N

/AQV24N

longer than
24.6ft (7.5m)
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).
shorter than
24.6ft (7.5m) The purge time is normal. The purge time is normal.

E-16
comPleting the installation
Purging the Connected Pipes(Continued)
Refrigerant type GWP value
R410A 1975
 GWP=Global Warming Potential
Indoor unit
Outdoor unit
= ( ) kg
= ( ) kg += ( ) kg

Contains fluorinated greenhouse gases
covered by the Kyoto Protocol.
a
b c
d

Important information regulation regarding the
refrigerant used
This product contains fluorinated greenhouse gases covered by the Kyoto
Protocol. Do not vent gases into the atmosphere.
Please fill in with indelible ink,
- the factory refrigerant charge of the product,
- the additional refrigerant amount charged in the field and
-
+the total refrigerant charge.
on the refrigerant charge label supplied with the product.

The filled-out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop valve cover).
Note a. Factory refrigerant charge of the product: see unit name plate
b. Additional refrigerant amount charged in the field
(Refer to the above information for the quantity of refrigerant
replenishment.)
c. Total refrigerant charge
d. Refrigerant cylinder and manifold for charging
Charging the refrigerant under conditions of liquid by
using a liquid pipe
R410A is a mixed type of refrigerant. It is necessary for recharging under
conditions of liquid. When recharging refrigerant from the refrigerant cylinder
to the equipment, follow the instructions below.
Before recharging, check whether the cylinder has a siphon or not.
There are two ways to recharge the refrigerant.
Cylinder with siphon Cylinder without siphon
 Charge the refrigerant standing  Charge the refrigerant turning the
the cylinder upright. cylinder upside down.
Note
◆If R410A refrigerant is charged with gas, the composition of the
charged refrigerant changes and the characteristics of the
equipment vary.
◆During the measuring operation of refrigerant quantity added use
an electronic balance. If cylinder doesn’t have syphon, upset it.
siphon

E-17
ENGLISH
comPleting the installation
Performing the Gas Leak Tests
CD
A
B
Make sure to check for gas leaks before completing the installation process
(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.
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and
recirculating the R410A, it’s responsible of installer to pressurize the whole system
with nitrogen (using a cylinder with pressure reducer) at a pressure above 40 bar
(gauge).
LEAK TEST WITH R410A (after opening valves)
Before opening valves, discharge all the nitrogen from the system and create
vacuum according to page 15.
After opening valves, check leaks using a leak detector for refrigerant
PUMP DOWN (before disconnecting the refrigerant connections for unit
repair,removal or disposal)
Pump-down is an operation intended to collect all the system refrigerant in the
outdoor unit.
This operation must be carried out before disconnecting the refrigerant tubing in
order to avoid refrigerant loss to the atmosphere.
- Shut off the liquid valve with the Allen wrench.
- Turn the system on in cooling with fan operating at high velocity.
(Compressor will immediately start, provided 3 minutes have elapsed since the
last stop).
- After 2 minutes of operation, shut the suction valve with the same wrench.
- Turn the system off and switch mains supply off.
- Disconnect tubing. After disconnection, protect valves and tubing ends from
dust.
- Compressor damage may occur if run at a negative suction pressure.

E-18
ComPleting the installation
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).
1
Place the outdoor unit as indicated on the top of the unit to let the
discharged air out properly.
2
Fix the outdoor unit to an appropriate support using anchor bolts.
3
If the outdoor unit is exposed to strong winds, install shield plates around the
outdoor unit so that the fan can operate correctly.
Secure the rubber leg to prevent the generation of noise and vibration.
Fixing the Outdoor Unit in Place
“ X ”
Rubber leg
“ Y ”
Model “X” “Y”
AQV09N
AQV12N1.78ft(543mm) 1.05ft(319mm)
AQV18N
AQV24N2.17ft(660mm) 1.12ft(340mm)
OUTDOOR UNIT INSTALLED ON THE WALL BY RACK
- Ensure the wall will be able to suspend the weight of rack and outdoor unit;
- Install the rack close to the column as much as possible;
- Install proper grommet in order to reduce noise and residual vibration trans-
ferred by outdoor unit towards wall.
Soft rubber designed to cut
off vibration from rack to wall.
(not supplied with product)
Designed to cut off
residual vibration from
outdoor unit to rack. (not
supplied with product)
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.
2
Wrap the refrigerant pipe and the drain hose in the rear of the indoor unit with
the absorbent pad.
Wind the pipe and hose three times to the end of the indoor unit with the
absorbent pad. (0.79 inch(20mm) interval)
3
Wind the pipe, assembly cable and drain hose with insulation tape.
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.
5
Hook the indoor unit to the installation plate and move the unit to the right
and left until it is securely in place.
6
Wrap the rest of the pipe with vinyl tape.
7
Attach the pipe to the wall using clamps (optional).
Installation plate