Samsung | AR18NVWSBWKNSS | Samsung AR18NVWSBWKNSS Installation Guide

• Verify that installation and testing operations are
performed by qualified personnel.
• Do not attempt to repair, move, alter or reinstall the unit.
If performed by unauthorised personnel, these operations
may cause electric shocks or fires.
• Verify that the air conditioner is not installed in an easily
accessible area.
• Do not place containers with liquids or other objects on
the unit.
General information
• All the materials used for the manufacture and packaging
of the air conditioner are recyclable.
• Carefully read the content of this manual before installing
the air conditioner and store the manual in a safe place in
order to be able to use it as reference after installation.
• For maximum safety, installers should always carefully
read the following warnings.
• Store the operation and installation manual in a safe
location and remember to hand it over to the new owner if
the air conditioner is sold or transferred.
• The packing material and exhaust batteries of the remote
control (optional) must be disposed of in accordance with
current laws.
• The air conditioner contains a refrigerant that has to be
disposed of as special waste. At the end of its life cycle, the
air conditioner must be disposed of in authorised centres
or returned to the retailer so that it can be disposed of
correctly and safely.
• This manual explains how to install an indoor unit with a
split system with two SAMSUNG units. The use of other
types of units with different control systems may damage
the units and invalidate the warranty. The manufacturer
shall not be responsible for damages arising from the use
of non compliant units.
Installation of the unit
• The manufacturer shall not be responsible for damage
originating from unauthorised changes or the improper
connection of electric and requirements set forth in the
“Operating limits” table, included in the manual, shall
immediately invalidate the warranty.
• Upon receipt, inspect the product to verify that it has not
been damaged during transport. If the product appears
damaged, DO NOT INSTALL it and immediately report
the damage to the carrier or retailer (if the installer or the
authorised technician has collected the material from the
retailer.)
• The air conditioner should be used only for the applications
for which it has been designed: the indoor unit is not
suitable to be installed in areas used for laundry.
• Do not use the units if damaged. If problems occur, switch
the unit off and disconnect it from the power supply.
• IMPORTANT: When installing the unit, always remember
to connect first the refrigerant tubes, then the electrical
lines. Always disassemble the electric lines before the
refrigerant tubes.
• After completing the installation, always carry out a
functional test and provide the instructions on how to
operate the air conditioner to the user.
• In order to help prevent electric shocks, fires or injuries,
always stop the unit, disable the protection switch and
• Do not use the air conditioner in environments with
hazardous substances or close to equipment that release
free flames to avoid the occurrence of fires, explosions or
injuries.
When installing more than 1 outdoor unit
(5 cases)
Unpacking the outdoor unit
(Unit: mm)
1 Remove the package.
• When installing the outdoor unit at the seaside, make
sure that it is not directly exposed to sea breeze. If you
cannot find an adequate place free from direct sea breeze,
construct a protection wall or a protective fence.
–– Install the outdoor unit in a place (such as near buildings
etc.) where it can be protected from sea breeze. Failure to
do so may cause a damage to the outdoor unit.
Sea breeze
Sea breeze
Outdoor unit
Sea
• If you cannot avoid installing the outdoor unit at the seaside,
construct a protection wall around to block the sea breeze.
• Construct a protection wall with a solid material such as
concrete to block the sea breeze. Make sure that the height
and the width of the wall are 1.5 times larger than the size
of the outdoor unit. Also, secure a space larger than 600
mm between the protection wall and the outdoor unit for
exhausted air to ventilate.
Sea breeze
3000
200
300
3000
1500
600
Installation plate (1)
**18/24*******
Drain Hose, 2 m long (1)
Pipe clamp B (3)
**09/12*******
3
15
8
**18/24*******
3
30
15
Outer wall
PE T3 foam tube insulation (1)
Putty 100 g (1)
Step 1.5 Taping the pipes, cables, and
drain hose
Rubber leg (4)
Left
CAUTION
• If changing the pipe direction from left to right, do not
drastically bent it but slowly turn it in the opposite
direction as shown. Otherwise, the pipe may be damaged
in the process.
M4 x 25 tapped screw (6)
Cement nail (6)
• Spirit level
• Screwdriver
<Minimum distances between the hole and the
installation plate>
• Spanner
(Unit : mm)
• Drill
Model
A
B
C
D
**09/12*******
36
120
81
36
**18/24*******
33
110
110
33
• L-wrench
• Measuring tape
• Thermometer
Pipe bundle hole: Ø 65 mm
• Resistance meter
Cap screw (2)
Cement nail (6)
3-wire power cable (1)
Installation Manual (1)
3-wire assembly cable (1)
2-wire assembly cable (1)
Unpacking the indoor unit
• Electroscope
2 Drill the hole.
Step 1.4 Drilling a hole through the
wall
• Be sure to drill only one hole.
Before fixing the installation plate to a wall and then fixing
the indoor unit to the installation plate, a window frame, or
a gypsum board, you must determine the position of a hole
(with 65 mm inner diameter) through which the pipe bundle
(consisting of power and communication cables, refrigerant
pipes, and drain hose) will pass and then drill that hole.
CAUTION
2 Remove the left and right cushions.
3 Pull out the unit from the package.
Drain hose
Indoor Unit Installation
Please scan this QR code for detail
video of indoor unit installation.
Step 2.1 Disassembling the cover
panel
1 Remove the cap screws, then the screws.
• Make sure that the hole slants downwards so that the
drain hose slants downwards to drain water well.
Wall
1 Determine the position of a 65 mm hole in consideration
of the possible directions of the pipe bundle and the
minimum distances between the hole and the installation
plate.
1 Open the indoor unit package.
Cap screw
Screw
Drain hose
Indoor unit
<The hole slants downwards>
Phillips screwdriver
2 Unlock the side hooks ( , ), then centre hooks ( ).
Then unlock the bottom hooks ( ) to pull out the cover
panel.
Step 2.2 Disassembling the
installation plate
1(L)2(N)
• Do not connect two or more different cables to extend the
length. This connection may cause fire.
F1 F2
Contraction tube
• Each circular terminal must match the size of its
corresponding screw in the terminal block.
• Ensure that power and communication cables are
separated, they must not be in the same cable.
20
C
Centre hook (A)
Bottom/Side hook (B/C)
Step 2.3 Connecting the power and
communication cables (assembly
cable)
2
Model
**09/12******* **18/24*******
Power cable
(Outdoor unit)
180
3G X 2.5 mm², H07RN-F
Outdoor-to-Indoor
power cable
3G X 1.0 mm², H07RN-F
Communication cable
2 X 0.75 mm², H05RN-F
Type GL
20 A
25 A
• When performing electrical and earthing works, be sure
to comply with the 'technical standards of electrical
installations' and the 'wiring regulations' in the local
regulations.
1
Control box
• Tighten the terminal block screw to 1.2-1.8 N•m (1.2-1.8
kgf•cm).
NOTE
• Each wire is labelled with the corresponding terminal
number.
Before
connecting
Correct
Upside
down
Damaged
Noncircular
4
After
connecting
Correct
Correct
(Front view) (Side view)
<Circular terminal>
Upside
down
Non-fitted
• Use shield cable (Category 5; less than 50pF/m) for noisy
environmental site.
• Power supply cords of parts of appliances for outdoor
use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC: 60245 IEC66/CENELEC:
H07RN-F, IEC: 60245 IEC57/CENELEC: H05RN-F, IEC: 60227
IEC53/CENELEC: H05VV-F)
• Power & Communication cable shall not exceed 30m.
CAUTION
• For the terminal block wiring, use a wire with a ring terminal
socket only. Regular wires without a ring terminal socket
may become a hazard due to overheating of the electrical
contact during installation.
• If you need to extend the pipe, be sure to extend the cable,
too.
Step 2.4 Optional: Extending the
power cable
1 Prepare the following tools.
Tools
Spec
Crimping
pliers
MH-14
Connection
sleeve (mm)
20xØ6.5 (HxOD)
Insulation
tape
Width 19 mm
Contraction
tube (mm)
70xØ8.0 (LxOD)
(Unit: mm)
Pre-installed tube for the power cable
20
• Connect the wires firmly so that wires cannot be pulled
out easily. (If they are loose, it could cause burn-out of the
wires.)
20
60
WARNING
Fasten the screws for the wire holders.
B
20
120
A
B
Insulation tape
3 Insert both sides of core wire of the power cable into the
connection sleeve.
• Method 1: Push the core wire into the sleeve from both
sides.
• Method 2: Twist the wire cores together and push it into
the sleeve.
Method 1
Method 2
Connection sleeve
4 Using a crimping tool, compress the two points and flip it over
and compress another two points in the same location.
• The compression dimension should be 8.0.
Compression
dimension
2 As shown in the figure, peel off the shields from the rubber
CAUTION
• After compressing it, pull both sides of the wire to make
sure it is firmly pressed.
Method 1
Method 2
Compress it 4 times.
Compress it 4 times.
• For information about the power cable specifications for
indoor and outdoor units, refer to the installation manual.
• After peeling off cable wires from the pre-installed tube.
Insert a contraction tube.
5 mm
5 mm
5 Wrap it with the insulation tape twice or more and
position your contraction tube in the middle of the
insulation tape.
Three or more layers of insulation are required.
Method 1
Insulation tape
Method 2
Insulation tape
(Unit : m)
Model
Cable (Maximum)
**09/12/18/24*******
30
CAUTION
• Make sure that the connection parts are not exposed to
outside.
• Be sure to use insulation tape and a contraction tube made
of approved reinforced insulating materials that have the
same level of withstand voltage with the power cable.
(Comply with the local regulations on extensions.)
WARNING
Connection sleeve
• Peel off 20 mm of cable shields from the pre-installed
tube.
7 After tube contraction work is completed, wrap it with the
insulation tape to finish.
(Unit: mm)
Shape
and wire of the power cable.
Flat-head screwdriver
6 Apply heat to the contraction tube to contract it.
Power cable
• After connecting the cables, make sure that terminal
numbers on the indoor and outdoor units match.
A
Refrigerant pipes
(assembly pipe)
Installation plate
Power and communication cables
(assembly cable)
• Pipe bender
Tools for test operation
Step 1.2 Unpacking
Refrigerant pipes
1 Wind the refrigerant pipes, power cable, communication
cable and drain hose with vinyl tape to make a pipe
bundle.
Vinyl tape
• Reamer
• Be sure to install the outdoor unit in a level place where its
vibration does not affect the whole product.
Insulation
<Possible directions of the pipe bundle>
Pipe bundle hole
• Pipe cutter
300
CAUTION
1 Wrap foam insulation on parts without insulation on the
ends of the refrigerant pipes, as shown in the figure. This
wrapping minimises condensation problem.
Right
Bottom right
• A flare nut is attached to the end of each pipe of an
evaporator or a service port. Use flare nuts when connecting
the pipes.
• Wire assembly cables are optional. If they are not supplied,
use standard cables.
• The drain plug and the rubber legs are included only when
the air conditioner is supplied without assembly pipes.
• If these accessories are supplied, they are in the accessory
package or outdoor unit package.
• Torque wrench
Users Manual (1)
• If the outdoor unit is installed with any insufficient
clearance, it may generate sound and affect the whole
product.
300
Cut insulation to have
rainwater drained
• Manifold gauge
Installation Manual (1)
600
Make a U-trap (A) on the pipe
(which is connected to the indoor
unit) at outer wall and cut the
bottom part of the insulation
(about 10 mm) to prevent
rainwater from getting inside
through the insulation.
CAUTION
Indoor Unit
• Stud finder
500
Minimum Maximum Maximum
Outdoor
Unit
• Vacuum pump
(Backward flowing
prevention)
Vinyl tape (2)
600
300
500
Model
150
Pipe height
General tools
Remote control holder (1)
Remote control battery (2)
2000
(Unit : m)
Pipe length
Tools
300
600
The actual units may look different from the
images depicted here.
NOTE
Accessories in the indoor unit package
(6 cases)
(Unit: mm)
Maximum
pipe length
Rear right or left
Insulated assembly pipe,
Ø 15.88 mm (1)
**24*******
Side view
When installing 1 outdoor unit
–– When extension wiring is required due to power line
damage, refer to "Step 2.4 Optional: Extending the power
cable" in the installation manual.
Insulated assembly pipe,
Ø 9.52 mm (1)
**09/12*******
Pipe clamp A (3)
600
Top view
Make at least one round to reduce
noise and vibration.
Accessories in the outdoor unit package
Insulated assembly pipe,
Ø 12.70 mm (1)
**18*******
Remote control (1)
300
Maximum
pipe height
–– It may cause electric shock or fire due to poor connection,
poor insulation, or current limit override.
• Be sure to clean the sea water and the dust on the heat
exchanger of the outdoor unit and apply a corrosion inhibitor
on it. (At least once in a year.)
Step 1.3 Checking and preparing
accessories and tools
Installation plate (1)
**09/12*******
Air flow direction
Drain hose hole
You can select the direction of
draining (left or right).
• Be sure not to perform power cable modification, extension
wiring, and multiple wire connection.
• If you have any difficulty finding installation location as
prescribed above, contact your manufacturer for details.
Insulated assembly pipe,
Ø 6.35 mm (1)
Accessories
1500
600
600
• Always verify that electric connections (cable entry, section
of leads, protections…) are compliant with the electric
specifications and with the instructions provided in the
wiring scheme. Always verify that all connections comply
with the standards applicable to the installation of air
conditioners.
• Install the unit in a place where water can drain smoothly.
3 Pull out the unit from the bottom cushion.
600
125 mm or
more
125 mm or
more
• Verify that the air conditioner is connected to the power
supply in accordance with the instructions provided in the
wiring diagram included in the manual.
Outdoor unit
Protection wall
Sea
Minimum clearance in mm
100 mm or more
• Always verify that the cut-off and protection switches are
suitably dimensioned.
Protection wall
Outdoor unit
Optional accessories
2 Remove the top cushion.
1500
Outdoor unit
Sea
• Verify that the voltage and frequency of the power supply
comply with the specifications and that the installed power
is sufficient to ensure the operation of any other domestic
appliance connected to the same electric lines.
Wall
1500
• The unit contains moving parts, which should always be
kept out of the reach of children.
Overview of installation location requirements
1500
• Always disconnect the air conditioner from the power
supply before servicing it or accessing its internal
components.
• Always verify that a suitable grounding connection is
available.
Minimum clearances for the outdoor unit
300
Carefully follow the precautions listed below because
they are essential to guarantee the safety of both the air
conditioner and the workers.
• Always remember to inspect the unit, electric connections,
refrigerant tubes and protections regularly. These
operations should be performed by qualified personnel
only.
Step 1.1 Choosing the installation
location
1500
contact SAMSUNG’s technical support if the unit produces
smoke, if the power cable is hot or damaged or if the unit
is very noisy.
• Always make sure that the power supply is compliant with
current safety standards. Always install the air conditioner in
compliance with current local safety standards.
CAUTION
• Comply with the length and height limits described in the
figure above.
300
Safety Information on
Installation
Preparation
300
DB68-07800A-00
Power supply line, fuse, or circuit
breaker
300
AR**NVWS***
• Our units must be installed in compliance with the spaces
indicated in the installation manual to ensure either
accessibility from both sides or ability to perform routine
maintenance and repairs. The units’ components must be
accessible and that can be disassembled in conditions of
complete safety either for people or things. For this reason,
where it is not observed as indicated into the Installation
Manual, the cost necessary to reach and repair the unit
(in safety, as required by current regulations in force) with
slings, trucks, scaffolding or any other means of elevation
won’t be considered in-warranty and will be charged to
end user.
500
Installation manual
40 mm
35 mm
• In case of extending the electric wire, please DO NOT use a
round-shaped pressing socket.
–– Incomplete wire connections can
cause electric shock or a fire.
Step 2.5 Installing and connecting the Step 2.6 Optional: Extending the
drain hose
drain hose
Drain hose (A)
1 Install the drain hose.
Extension drain hose (B)
CAUTION
• Make sure that the indoor unit is in upright position when
you pour water to check for leakage. Make sure that the
water does not overflow onto the electrical part.
Step 2.8 Installing and connecting the
assembly pipes to the refrigerant pipes
(assembly pipe)
(A)
Drain hose
Assembly pipe
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 operating
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.
(B)
Connection hose
Extension drain hose
Drain hose
Wall
Indoor unit
Drain hose
Water
Slant downwards
Slant upwards
Dipped in water
Foam insulation
• The larger one is for the gas refrigerant
5 cm
less
Bent
Too small
clearance
Too small
clearance
2 Pour water into the drain pan. Check whether the hose is
well drained.
Step 2.7 Optional: Changing the
direction of the drain hose
140 to 180
ø 9.52
34 to 42
350 to 430
ø 12.70
49 to 61
500 to 620
ø 15.88
68 to 82
690 to 830
Left
• If you want to shorten or extend the pipes, see Step 2.9
Shortening or extending the refrigerant pipes (assembly
pipe).
• The pipe should not project from the rear of the indoor
unit.
CAUTION
Underside
1 Cut out the appropriate knock-out piece (A, B, C) on the
rear of the indoor unit unless you connect the pipe directly
from the rear.
Direction of the drained water
When fixing the indoor unit on a wall
Step 2.11 Fixing the indoor unit to the
installation plate
Outdoor Unit Installation
X
L
N
F2
Flare
Outer diameter (D)
Depth (A)
ø 6.35
1.3
8.7 to 9.1
ø 9.52
1.8
12.8 to 13.2
ø 12.70
2.0
16.2 to 16.6
ø 15.88
2.2
19.3 to 19.7
Flare nut
Y
Model
A
B
C
D
**09/12*******
36
120
81
36
**18/24*******
33
110
110
33
Pipe bundle hole: Ø 65 mm
CAUTION
Rubber leg
• Make sure that the pipe bundle does not move when you
install the indoor unit onto the installation plate.
NOTE
(Unit : mm)
Model
X
Y
Step 2.12 Assembling the cover panel
**09/12*******
507
292
1 Lock the side hooks (D), then centre hooks (B). Then lock
the bottom hooks (C) to engage the cover panel in place.
**18/24*******
660
340
2 Fasten the screw (A(A- ).
), then assemble the cap screws
• If you mount the plate to a concrete wall using plastic
anchors, make sure that gaps between the wall and the
plate, created by projected anchor, is less than 20 mm.
A
B
A
Outdoor-to-indoor power cable
(three wires)
Power cable
(three wires)
Communication cable
(two wires)
CAUTION
• Be sure to fix the power cables and communication cable
with a cable clamp.
D
1
Control box
Optional: Fixing the outdoor unit to a wall with a rack
When fixing the indoor unit on a gypsum board
B
Remove the screw for the
control box cover
• Secure the rubber legs to help prevent the generation of
noise and vibration.
• If the outdoor unit is exposed to strong winds, install shield
plates around the outdoor unit so that the fan can operate
correctly.
D
2
3 Attach the installation plate to the wooden upright using
tapping screws.
Connecting pipe
Outer diameter (mm)
Torque (N•m)
Torque (kgf•cm)
ø 6.35
14 to 18
140 to 180
ø 9.52
34 to 42
350 to 430
ø 12.70
49 to 61
500 to 620
68 to 82
690 to 830
• Do not turn on the system! This is necessary for better
vacuum operation (full OPEN position of Electronic
Expansion Valve).
2 Connect the charging hose of the low pressure side
of manifold gauge to a gas service port as seen in the
picture.
Soft rubber designed to cut off vibration from
rack to wall (not supplied with product)
B
4
Vacuum
Pump
5
For connecting the
refrigerant pipes
Gas service port
<Low pressure>
C
Liquid service port
<High pressure>
C
NOTE
A
A
• Make sure that the wall can support the weights of the rack
and the outdoor unit.
2
Installation Inspection
Step 4.2 Running the Smart Install
mode
Step 4.1 Performing the gas leak tests
1 Make sure that the air conditioner is in the standby status.
Error indicator
LED 1
Display
LED 2
LED 3
/
3 Wait until Smart Install mode succeeds or fails. It takes
approximately 7 to 13 minutes.
Display
Tightening torque for charging port cap (Refer to the table)
Tightening torque
ø 15.88
30 to 35
Over ø 19.05
35 to 40
,
The LEDs on the indoor unit
display blink in sequence,
then all of them blink
simultaneously. These
operations repeat.
• Check the connection of the
connector.
Error on indoor heat exchanger
• Check the connection of the
connector.
Error on indoor fan motor
• Check the connection of the
connector.
• Remove foreign substance.
(Check for the cause that
restrains motor.)
display and all
LEDs blink.
• When Smart Install mode succeeds: Smart Install mode
EEPROM/Option error
3 Test leakage on the connection parts of the indoor and
outdoor units with soap lather or liquid.
Refrigerant flow blocking error
standby status.
Test parts for the
Test parts for the
indoor unit
indoor unit
• Check if the stop valve is
completely open.
• Check if there is any blockage
in the refrigerant pipe which
connects the indoor and
outdoor units.
mode ends.
• Check for refrigerant leak.
NOTE
Lack of refrigerant (for inverter
models only)
• Smart Install mode can be operated only with the supplied
remote control.
❈This LED pattern appears when
an error occurs on the outdoor
unit.
• During the Smart install mode procedure, remote control
cannot be operated.
❈
Test parts for the
Test parts for the
indoor unit
indoor unit
• Re-set options.
,
displayed on the indoor unit display, and Smart Install
2 Insert inert gas into the pipes connected to indoor and
outdoor units.
• Check the connection wire
between the indoor and
outdoor units (whether the
power cable or communication
cable is crossed or not).
Error on indoor temperature
sensor
• When Smart Install mode fails: An error message is
( 1 N•m = 10 kgf•cm )
• Strength of the installation site
• Electric wiring connection
• Heat-resistant insulation of the pipe
• Drainage
• Grounding conductor connection
• Correct operation (Take the following steps.)
ends with ringing sound, and the air conditioner is in
10 to 12
Measures for the installer to take
/
LED Display
LED3
The progress is
displayed as a
number between
0 and 99 on the
indoor unit display.
Step 4.3 Performing final check and
trial operation
• Tightness of pipe connection to detect gas leak
• While Smart Install mode is proceeding:
Indoor
unit
indicator
Charging port cap
(N•m)
Error
Communication error between
indoor and outdoor units
LED2
R-22: Thread of the screw - 7/16-2OUNF
R-410A: Thread of the screw -1/2-2OUNF
R-410A 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.
Charge the refrigerant
standing the cylinder upright.
Charge the refrigerant turning
the cylinder upside down.
<Cylinder with siphon>
<Cylinder without siphon>
NOTE
• If R-410A 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 electronic scales. If cylinder doesn't have siphon,
upset it.
• Make sure that pressure gauge shows -0.1 MPa (-76
cmHg, 5 torr) after about 10 minutes. This procedure is
very important to avoid a gas leak.
• Close the valve of the low pressure side of manifold
gauge clockwise.
• Turn off the vacuum pump.
• Check for 2 minutes if there is any pressure change.
• Remove the hose of the low pressure side of manifold
gauge.
5 Set a valve cork of liquid and gas service port to the open
position.
1 Check the following:
LED Display
LED1
Spindle
The outdoor unit is loaded with sufficient R-410A refrigerant.
Do not vent R-410A into atmosphere: it is a fluorinated
greenhouse gas, covered by Kyoto Protocol, with a Global
Warming Potential (GWP) = 2088. You should evacuate 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. Use a vacuum
pump.
When error occurs, take necessary measures by referring to the following table. For more information on necessary measures
for errors, refer to the service manual.
2 Hold down the
(Power),
(Mode), and
(SET)
buttons on the remote control simultaneously for 4
seconds.
Type
Connect the gas and
liquid refrigerant pipes
Step 3.3 Evacuating the air
Soft rubber designed to cut off residual vibration from
outdoor unit to rack (not supplied with product)
• Install the rack close to the column as much as possible.
Charging core
• Always contact the service centre or a professional
installation agency for product installation.
4 Evacuate the air in the connected pipes using the vacuum
pump for about 15 minutes.
1
Tightening torque for body cap
(Refer to the table)
CAUTION
• The remaining air in the Refrigeration cycle, which contains
moisture, may cause malfunction on the compressor.
15 minutes
3 Open the valve of the low pressure side of manifold gauge
anticlockwise.
1 Before inspecting the leakage, use a torque wrench to
close the cap for the stop valve. (Comply with a tightening
torque for each size of the diameter, and tighten the cap
firmly to prevent any leakage.)
If you use a pipe longer than the length specified in the
piping codes and standards, you must add 15 g of refrigerant
R-410A for each extra meter. If you use a pipe shorter than
the length specified in the piping codes and standards, the
evacuating time is normal. Refer to the Service Manual for
further details.
Liquid service port <Low pressure>
Remove the gas and liquid
service port caps
CAUTION
25 to 30
WARNING
• Make sure that the wall, window frame, or gypsum board
can withstand the weight of the indoor unit. If you install
the indoor unit in a place where it is not strong enough to
withstand the unit's weight, the unit could fall and cause
injury.
3
Valve
Liquid service port <High pressure>
• If you fix the indoor unit on a gypsum board, use only
specified anchor bolts on reference positions. Otherwise,
the gypsum surrounding the joints may crumble over time
and cause the screws to be loosened and stripped. This
may lead to physical injury or equipment damage.
• Search for other spots if there are less than two studs, or
the distance between the studs are different from the plate
hanger.
• Fix the installation plate without inclining to one side.
ø 12.70
You can install the indoor unit on a wall, window frame, or
gypsum board.
Before recharging, check whether the cylinder has a siphon
or not. There are two ways to recharge the refrigerant:
(Backward flowing prevention)
2 Fix the plate hanger on two studs.
20 to 25
Step 2.10 Fixing the installation plate
Step 3.4 Adding refrigerant
CAUTION
• When installing, make sure there is no leakage. When
recovering the refrigerant, ground the compressor first
before removing the connection pipe. If the refrigerant
pipe is not properly connected and the compressor
works with the stop valve open, the pipe inhales the air
and it makes the pressure inside of the refrigerant cycle
abnormally high. It may cause explosion and injury.
1 Use stud finder to find out locations of the studs.
ø 9.52
CAUTION
Siphon
NOTE
C
2 Attach the wooden uprights to the window frame giving
attention to the weight of the indoor unit.
20 to 25
NOTE
• Tighten the flare nut at the specified torque. If the flare
nut is over-tightened, it may break to cause leakage of
refrigerant gas.
1 Place the outdoor unit as directed on the top of the unit to
let the discharged air out properly.
B
C
1 Determine the positions of the wooden uprights to be
attached to the window frame.
ø 6.35
Damaged
surface
• Excessive torque may cause gas leakage. When extending
the pipe with welding or brazing, ensure that nitrogen is
used during the welding or brazing process. The joint must
be accessible and serviceable.
2 Fix the outdoor unit in level to an appropriate support
using anchor bolts.
When fixing the indoor unit on a window frame
Body cap (N•m)
Uneven
thickness
<Flare nut>
Flare dimension (L)
WARNING
C
(Unit : mm)
Outer diameter (mm)
Cracked
(Unit: mm)
D
1 Leave the system in the standby mode.
D
A
F1
B
Pipe
• If you need a pipe longer than specified in piping codes and
standards, you must add refrigerant to the pipe. Otherwise,
the indoor unit may freeze.
Step 3.2 Connecting the power
and communication cables and the
refrigerant pipes
Step 3.1 Fixing the outdoor unit in
place
Plastic anchor
20 mm
L
CAUTION
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:
<Side view>
Correct
45°±2°
• While removing burrs, put the pipe face down to make sure
that the burrs do not get in to the pipe.
Fix the installation plate to the wall giving attention to the
weight of the indoor unit.
Wall
90°±2°
A
ø 15.88
2 Smooth the cut edges.
• Inadequate installation may cause water leakage.
Burr
D
Indoor outlet pipe
<Front view>
Rough
Inclined
• The pipe will be insulated and fixed permanently into
position after finishing the installation and the gas leak
test. For further details. see Step 4.1 Performing the gas
leak tests.
<Side view>
• Do not box in or cover the drain hose connection.
Drain hose connection must be easily accessible and
serviceable.
Oblique
5 If necessary, bend the pipe to fit along the bottom of the
indoor unit. Then pull it out through the appropriate hole.
Rear right or left
• If the drain hose is routed inside the room, insulate the
hose so that dripping condensation does not damage the
furniture or floors.
90°
• Do not box in or cover the pipe connection. All refrigerant
pipe connection must be easily accessible and serviceable.
Right
CAUTION
Gas service port
<Low pressure>
4 Cut off the remaining foam insulation.
Pour water in the direction of arrow.
• If the diameter of the connection hose is smaller than the
product's drain hose, water leakage may occur.
Liquid service port
<High pressure>
Pipe
• Tighten the flare nut with a torque wrench according to
specified method. If the flare nut is over-tightened, the flare
may break and cause refrigerant gas leakage.
Rubber cap
• Make sure that the indoor unit is in upright position when
you pour water to check for leakage. Make sure that the
water does not overflow onto the electrical part.
Pipe cutter
R 0.4 to 0.8
Drain pan outlet
<Front view>
Step 2.9 Shortening or extending the
refrigerant pipes (assembly pipe)
NOTE
NOTE
A short liquid refrigerant pipe and a short gas refrigerant
pipe are already fitted to the air conditioner. The
connection procedure for the refrigerant pipes varies
according to the exit position of each pipe when facing
the wall:
Ditch
Torque (kgf•cm)
14 to 18
6 Pass the pipe through the hole in the wall.
• The smaller one is for the liquid refrigerant
Vinyl tape
Torque (N•m)
ø 6.35
• The bending radius should be 100 mm or more.
There are 2 refrigerant pipes of different diameters:
20 mm or more
Outer diameter (mm)
: Off,
: Blinking,
: On
• Check if a sufficient amount
of refrigerant is additionally
charged for the pipe longer
than specified in piping codes
and standards.
• Check for refrigerant leak
between valve and pipe
connection.
2 Press the
(Power) button on the remote control to
check the following:
• The indicator on the indoor unit lights up.
• The airflow blade opens and the fan gears up for
operation.
3 Press the
(Mode) button to select Cool mode. Then
take the following sub-steps:
• In Cool mode, use the Temperature button to set the set
temperature to 16 °C.
1 Hold down the
(Power) button on the indoor unit
for 5 seconds. Beep sounds immediately to indicate
that the product is ready for pump down procedure.
2 Let the compressor run for more than 5 minutes.
3 Release the valve caps on High and Low pressure side.
4 Use L-wrench to close the valve on the high pressure
side.
5 After approximately 1 minute, close the valve on the
low pressure side.
6 Stop operation of the air conditioner by pressing the
(Power) button on the indoor unit or remote
control.
7 Disconnect the pipes.
CAUTION
• Compressor damage may occur if the compressor is run at
a negative suction pressure.
• Check whether, approximately 3 to 5 minutes later, the
outdoor unit starts, and a cool air blows out.
1
• After 12 minutes of stationary condition, check the
indoor unit air treatment.
1 minute
4 Press the
(Air swing) button to check whether the
airflow blades work properly.
5 Press the
(Power) button to stop the trial operation.
Pumping down for removing the product
Liquid service port
<High pressure>
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.
2
WARNING
• After installing the product, be sure to perform leak tests
on the piping connections. After pumping down refrigerant
to inspect or relocate the outdoor unit, be sure to stop the
compressor and then remove the connected pipes.
–– Do not operate the compressor while a valve is open due
to refrigerant leakage from a pipe or an unconnected or
incorrectly connected pipe. Failure to do so may cause
air to flow into the compressor and too a high pressure
to develop inside the refrigerant circuit, leading to an
explosion or product malfunction.
Gas service port
<Low pressure>
Off
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