Samsung AR12MCFHDWKYRG Installation Guide

Samsung AR12MCFHDWKYRG Installation Guide
General information
• 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.
• 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.
• Do not place containers with liquids or other objects
on the unit.
• 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.
Installation of the unit
• 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.
• 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.)
• Do not use the units if damaged. If problems occur,
switch the unit off and disconnect it from the power
supply.
• 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
Unpacking the outdoor unit
(Unit: mm)
• Always verify that the cut-off and protection switches
are suitably dimensioned.
• All the materials used for the manufacture and
packaging of the air conditioner are recyclable.
• 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. 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.
(5 cases)
–– 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.
• After completing the installation, always carry out a
functional test and provide the instructions on how to
operate the air conditioner to the user.
Sea breeze
Sea breeze
Outdoor unit
Sea
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
3000
600
Pipe clamp A (3)
Pipe clamp B (3)
Vinyl tape (2)
Putty 100 g (1)
Installation plate (1)
Installation plate (1)
✴✴12✴✴
✴✴18/24✴✴
PE T3 foam tube insulation (1)
Remote control holder (1)
Drain plug (1)
500
3-wire assembly cable (1)
Accessories in the outdoor unit package
Remote control battery (2)
Rubber leg (4)
User Manual (1)
• 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.
Insulated assembly pipe,
Ø 9.52 mm (1)
✴✴12✴✴
Insulated assembly pipe,
Ø 12.70 mm (1)
✴✴18✴✴
✴✴24✴✴
N
L
N(1) 1
• The drain plug and the rubber legs are included only
when the air conditioner is supplied without assembly
pipes.
• Do not connect two or more different cables to
extend the length. This connection may cause fire.
3 Insert both sides of core wire of the power cable into
the connection sleeve.
• Each circular terminal must match the size of its
corresponding screw in the terminal block.
• Method 1: Push the core wire into the sleeve from
both sides.
• After connecting the cables, make sure that terminal
numbers on the indoor and outdoor units match.
• Method 2: Twist the wire cores together and push it
into the sleeve.
Method 1
✴✴12✴✴
✴✴18✴✴
✴✴24✴✴
Power cable
(Outdoor
unit)
3G X 1.0 mm², 3G X 1.5 mm², 3G X 2.5 mm²,
H05VV-F
H05VV-F
H05VV-F
Outdoor-toindoor power
cable
3G X 1.0 mm², 3G X 1.5 mm², 3G X 2.5 mm²,
H07RN-F
H07RN-F
H07RN-F
Type GL
20A
25A
25A
• 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.
• Tighten the terminal block screw to 1.2-1.8 N•m (1.21.8 kgf•cm).
NOTE
• Each wire is labelled with the corresponding terminal
number.
• 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, 60245 IEC57 CENELEC:
H05RN-F, 60227 IEC53: 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. The maximum length of each of the
cable and pipe used should not exceed 15 meters
(✴✴12/18✴✴) and 20 meters (✴✴24✴✴).
• Connect the wires firmly so that wires cannot be
pulled out easily. (If they are loose, it could cause
burn-out of the wires.)
Step 2.2 Optional: Extending the
power cable
Connection sleeve
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.
1 Prepare the following tools.
Tools
Spec
Shape
Crimping
pliers
MH-14
Connection
sleeve (mm)
20xØ6.5 (HxOD)
Insulation
tape
Width 19 mm
Contraction
tube (mm)
70xØ8.0 (LxOD)
Compression
dimension
8
Method 1
CAUTION
• Peel off 20 mm of cable shields from the preinstalled tube.
CAUTION
• For information about the power cable
specifications for indoor and outdoor units, refer to
the installation manual.
• After peeling off the tube wire, you must insert a
contraction tube.
Power cable
20
20
60
120
(Unit: mm)
Refrigerant pipes
(assembly pipe)
• Manifold gauge
• Spanner
Drain hose
<Minimum distances between the
hole and the installation plate>
• Drill
(Unit : mm)
• L-wrench
Model
A
B
C
D
✴✴ 12✴✴
30
96
38
30
✴✴ 18/24✴✴
38
126
70
38
• Measuring tape
• Reamer
Vinyl tape
Indoor Unit Installation
Step 2.1 Connecting the cables
(assembly cable)
Pipe bundle hole: Ø 65 mm
• Resistance meter
• 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
• Make sure that the hole slants downwards so that the
drain hose slants downwards to drain water well.
Control box
Wall
Before
connecting
Indoor unit
Drain hose
Step 1.5 Taping the pipes, cables,
and drain hose
Left
Right
Rear right or left
Correct
Upside
down
Correct
Correct
Damaged
Noncircular
Upside
down
Non-fitted
After
connecting
(Front view) (Side view)
<Circular terminal>
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.
Insulation
Bottom right
<Possible directions of the pipe bundle>
CAUTION
7 After tube contraction work is completed, wrap it with
the insulation tape to finish.
Refrigerant pipes
2 Wind the refrigerant pipes, power cable,
communication cable and drain hose with vinyl tape
to make a pipe bundle.
Step 2.3 Installing and connecting
the drain hose
1 Install the drain hose.
• Do not box in or cover the drain hose connection.
Drain hose connection must be easily accessible and
serviceable.
Insulation tape
CAUTION
Step 2.4 Optional: Extending the
drain hose
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.)
Drain hose
WARNING
• In case of extending the electric wire, please DO NOT
use a round-shaped pressing
socket.
• If the drain hose is routed inside the room, insulate
the hose so that dripping condensation does not
damage the furniture or floors.
Assembly pipe
Connection hose
Drain hose (A)
Extension drain hose (B)
Wall
Indoor unit
Drain hose
Slant downwards
(A)
Water
Slant upwards
(B)
Dipped in water
Drain hose
Extension drain hose
Method 2
5 cm
less
Compress it 4 times.
5 mm
5 mm
(Unit: mm)
Too small
clearance
20 mm or more
Ditch
Method 1
2 Pour water into the drain pan. Check whether the
hose is well drained.
Method 2
Insulation tape
Insulation tape
40 mm
Foam insulation
Too small
clearance
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.
35 mm
Contraction tube
Pre-installed tube for the power cable
300
Power and communication cables
(assembly cable)
• Screwdriver
–– Incomplete wire
connections can cause
electric shock or a fire.
6 Apply heat to the contraction tube to contract it.
180
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.
• Spirit level
Bent
2 As shown in the figure, peel off the shields from the
rubber and wire of the power cable.
20
150
• After compressing it, pull both sides of the wire to
make sure it is firmly pressed.
Compress it 4 times.
20
20
• Make sure that the connection parts are not exposed
to outside.
• Be sure to use insulation tape and a contraction tube
Method 2
WARNING
Model
3
Pipe bundle hole
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.
Insulated assembly pipe,
Ø 15.88 mm (1)
✴✴24✴✴
• Ensure that power and communication cables are
separated, they must not be in the same cable.
Fasten the screws for the wire holders.
7
✴✴24✴✴
2000
Maximum
• Pipe bender
• Wire assembly cables are optional. If they are not
supplied, use standard cables.
Optional accessories
1 Open the indoor unit package.
✴✴12/18✴✴
15
<The hole slants downwards>
• If these accessories are supplied, they are in the
accessory package or outdoor unit package.
3 Pull out the unit from the package.
Maximum
3
M4 x 12 tapping screw (2)
Unpacking the indoor unit
1
• Vacuum pump
(Backward flowing
prevention)
NOTE
2 Remove the left and right cushions.
Minimum
✴✴12/18✴✴
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.
300
CAUTION
N(1)
Cement nail (6)
300
Insulated assembly pipe,
Ø 6.35 mm (1)
Pipe height
Installation plate
Tools for test operation
600
Step 1.2 Unpacking
Pipe length
Model
Tools
• Thermometer
• Be sure to install the outdoor unit in a level place
where its vibration does not affect the whole product.
(Unit : m)
Cut insulation to have
rainwater drained
• Pipe cutter
M4 x 25 tapped screw (6)
• If the outdoor unit is installed with any insufficient
clearance, it may generate sound and affect the
whole product.
The actual units may look different from the
images depicted here.
Outdoor
Unit
• Torque wrench
Installation Manual (1)
(Unit: mm)
General tools
Accessories in the indoor unit package
(6
• If you have any difficulty finding installation location
as prescribed above, contact your manufacturer for
details.
300
600
500
300
–– When extension wiring is required due to power line
damage, refer to "Step 2.2 Optional: Extending the
power cable" in the installation manual.
Side view
When installing 1 outdoor unit
cases)
–– It may cause electric shock or fire due to poor
connection, poor insulation, or current limit
override.
• Stud finder
Remote control (1)
Top view
• Be sure not to perform power cable modification,
extension wiring, and multiple wire connection.
• Install the unit in a place where water can drain
smoothly.
Accessories
1500
600
Make at least one round to reduce
noise and vibration.
• 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.
Outdoor unit
Protection wall
Drain Hose, 2 m long (1)
1500
600
Air flow direction
Maximum pipe height: 15 m
Maximum pipe length: 30 m
Indoor Unit
1 Remove the package.
2 Remove the top cushion.
Step 1.3 Checking and preparing accessories
and tools
200
300
600
600
Drain hose hole
You can select the direction of
draining (left or right).
• 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.
Protection wall
Outdoor unit
3 Pull out the unit from the bottom cushion.
1500
125 mm or
more
Outer wall
Sea
Minimum clearance in mm
100 mm or more
125 mm or
more
1500
• Verify that the air conditioner is not installed in an
easily accessible area.
• 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 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
Overview of installation location requirements
1500
• Verify that installation and testing operations are
performed by qualified personnel.
• The unit contains moving parts, which should always
be kept out of the reach of children.
• 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.
• Always verify that a suitable grounding connection is
available.
Minimum clearances for the outdoor unit
300
• Always disconnect the air conditioner from the power
supply before servicing it or accessing its internal
components.
• 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
Carefully follow the precautions listed below because
they are essential to guarantee the safety of both the
air conditioner and the workers.
• 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
• In order to help prevent electric shocks, fires or
injuries, always stop the unit, disable the protection
switch and 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.
Power supply line, fuse, or circuit
breaker
Preparation
300
DB68-06633A-01
• 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.)
300
AR✴✴MCFH✴✴
• 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
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.
• If the diameter of the connection hose is smaller than
the product's drain hose, water leakage may occur.
• Inadequate installation may cause water leakage.
Vinyl tape
Drain pan outlet
Rubber cap
There are 2 refrigerant pipes of different diameters:
• The bending radius should be 100 mm or more.
Flare nut
• The larger one is for the gas refrigerant
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:
NOTE
• 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.
Indoor outlet pipe
Pour water in the direction of arrow.
Right
<Front view>
Underside
Rear right or left
• 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.
• Do not box in or cover the pipe connection. All
refrigerant pipe connection must be easily accessible
and serviceable.
Step 2.7 Shortening or extending the
refrigerant pipes (assembly pipe)
Pipe cutter
<Side view>
<Front view>
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
ø 15.88
68 to 82
690 to 830
CAUTION
Left
Connecting pipe
Outer diameter (mm)
When fixing the indoor unit on a window frame
NOTE
6 Pass the pipe through the hole in the wall.
• The smaller one is for the liquid refrigerant
• 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.
CAUTION
• Tighten the flare nut at the specified torque. If the
flare nut is over-tightened, it may break to cause
leakage of refrigerant gas.
Step 2.8 Fixing the installation plate
You can install the indoor unit on a wall, window frame,
or gypsum board.
CAUTION
• 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.
• While removing burrs, put the pipe face down to make
sure that the burrs do not get in to the pipe.
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.
When fixing the indoor unit on a wall
Direction of the drained water
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.
Fix the installation plate to the wall giving attention to
the weight of the indoor unit.
Pipe
Liquid service port
<High pressure>
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:
<Side view>
Outer diameter (mm)
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 2.6 Installing and connecting
the assembly pipes to the
refrigerant pipes (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.
1 Place the outdoor unit as directed on the top of the
unit to let the discharged air out properly.
2 Fix the outdoor unit in level to an appropriate
support using anchor bolts.
Torque (N•m)
Oblique
90°
Rough
Gas service port
<Low pressure>
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
ø 15.88
68 to 82
690 to 830
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.
CAUTION
Burr
D
90°±2°
A
45°±2°
L
R 0.4 to 0.8
Flare
Model
A
B
C
D
✴✴12✴✴
30
96
38
30
✴✴18/24✴✴
38
126
70
38
Pipe bundle hole: Ø 65 mm
D
(Unit: mm)
Outer diameter (D)
Depth (A)
Flare dimension (L)
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
Inclined
Cracked
Uneven
thickness
Damaged
surface
<Flare nut>
CAUTION
• Do not turn on the system! This is necessary for
better vacuum operation (full OPEN position of
Electronic Expansion Valve).
• The remaining air in the Refrigeration cycle, which
contains moisture, may cause malfunction of the
compressor.
2 Connect the charging hose of the low pressure side
of manifold gauge to a gas service port as seen in the
picture.
• Always contact the service centre or a professional
installation agency for product installation.
Control box
Remove the screw for the
control box cover
• 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.
4
For connecting the
refrigerant pipes
15 minutes
Vacuum
Pump
Soft rubber designed to cut off residual vibration from
outdoor unit to rack (not supplied with product)
(Backward flowing prevention)
R-22: Thread of the screw - 7/16-2OUNF
R-410A: Thread of the screw -1/2-2OUNF
Tightening torque for charging port cap (Refer to the table)
Tightening torque
Connect the gas and
liquid refrigerant pipes
Step 3.3 Evacuating the air
The outdoor unit is loaded with sufficient R-22
refrigerant. 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.
Liquid service port <High pressure>
3 Open the valve of the low pressure side of manifold
gauge anticlockwise.
4 Evacuate the air in the connected pipes using the
vacuum pump for about 15 minutes.
Body cap (N•m)
Charging port cap
(N•m)
ø 9.52
20 to 25
ø 12.70
25 to 30
507
292
✴✴24✴✴
660
340
ø 15.88
30 to 35
Over ø 19.05
35 to 40
3 Test leakage on the connection parts of the indoor
and outdoor units with soap lather or liquid.
• Close the valve of the low pressure side of manifold
gauge clockwise.
Step 4.3 Performing final check and
trial operation
Error
Measures for the installer to take
• Strength of the installation site
• Tightness of pipe connection to detect gas leak
/
• Electric wiring connection
Communication error between
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
• 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.)
EEPROM/Option error
• Re-set options.
,
Refrigerant flow blocking error
• 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.
Lack of refrigerant (for inverter
models only)
• Heat-resistant insulation of the pipe
• Drainage
• Grounding conductor connection
• Correct operation (Take the following steps.)
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.
• Check whether, approximately 3 to 5 minutes later, the
outdoor unit starts, and a cool air blows out.
• After 12 minutes of stationary condition, check the
indoor unit air treatment.
4 Press the
(Air swing) button to check whether the
airflow blades work properly.
5 Press the
Pumping down refrigerant
• Check if a sufficient amount
of refrigerant is additionally
charged for the pipe longer
than specified in piping codes
and standards.
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.
• Check for refrigerant leak
between valve and pipe
connection.
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.
Step 4.2 Running the Smart Install
mode
3 Wait until Smart Install mode succeeds or fails. It
takes approximately 7 to 13 minutes.
• While Smart Install mode is proceeding:
Type
Display
LED Display
LED2
Indoor
unit
indicator
LED3
The progress is
displayed as a
number between
0 and 99 on the
indoor unit display.
The LEDs on the indoor unit
display blink in sequence,
then all of them blink
simultaneously. These
operations repeat.
• When Smart Install mode succeeds: Smart
Install mode ends with ringing sound, and the air
conditioner is in standby status.
• When Smart Install mode fails: An error message
is displayed on the indoor unit display, and Smart
Install mode ends.
Test parts for the
indoor unit
NOTE
• Smart Install mode can be operated only with the
supplied remote control.
• During the Smart install mode procedure, remote
control cannot be operated.
Test parts for the
indoor unit
1 Shut off the liquid valve with the Allen wrench.
2 Turn on the air conditioner in cooling with fan operating at
high velocity. (Compressor will immediately start, provided
5 minutes have elapsed since the last stop.)
3 After 1 minutes of operation, shut the suction valve with
the same wrench.
4 Turn off the air conditioner and switch mains supply off.
5 Disconnect tubing. After disconnection, protect valves and
tubing ends from dust.
CAUTION
• Compressor damage may occur if the compressor is run at
a negative suction pressure.
Pumping down for removing the product
1 Turn on th air conditioner and select Fast Cool mode.
2 Let the compressor run for more than 5 minutes.If the
compressor does not operate for more than 5 minutes due
to protection control, wait about 2 minutes, and then carry
out the next procedure.
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.
(Power) button to stop the trial operation.
• Check for refrigerant leak.
Test parts for the
indoor unit
2 Insert inert gas into the pipes connected to indoor
and outdoor units.
• 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.
1 Check the following:
LED Display
: On
✴✴18✴✴
LED1
( 1 N•m = 10 kgf•cm )
CAUTION
• Remove the hose of the low pressure side of
• When installing, make sure there is no leakage. When
manifold gauge.
recovering the refrigerant, ground the compressor
5 Set a valve cork of liquid and gas service port to the
first before removing the connection pipe. If the
open position.
refrigerant pipe is not properly connected and the
compressor works with the stop valve open, the pipe
Step 3.4 Adding refrigerant
inhales the air and it makes the pressure inside of
If you use a pipe longer than the length specified in
the refrigerant cycle abnormally high. It may cause
the piping codes and standards, you must add 10g
explosion and injury.
(for✴✴12✴✴) and 20g (for ✴✴18/24✴✴) of refrigerant
R-22 for each extra meter. If you use a pipe shorter than
1 Leave the system in the standby mode.
the length specified in the piping codes and standards,
the evacuating time is normal. Refer to the Service
Manual for further details.
Error indicator
: Blinking,
254
10 to 12
• Turn off the 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.
: Off,
453
20 to 25
• Check for 2 minutes if there is any pressure change.
❈
✴✴12✴✴
2 Hold down the
(Power),
(Mode), and
(SET) buttons on the remote control simultaneously
for 4 seconds.
Spindle
ø 6.35
❈This LED pattern appears when
an error occurs on the outdoor
unit.
Y
1 Make sure that the air conditioner is in the standby
status.
3
Outer diameter (mm)
display and all
LEDs blink.
X
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.)
Charging core
Liquid service port
<High pressure>
(Unit : mm)
Model
Step 4.1 Performing the gas leak
tests
5
,
Rubber leg
Installation Inspection
Tightening torque for body cap
(Refer to the table)
Remove the gas and liquid
service port caps
LED 3
• Fix the installation plate without inclining to one side.
NOTE
Liquid service port <Low pressure>
LED 2
• Search for other spots if there are less than two studs,
or the distance between the studs are different from
the plate hanger.
Test parts for the
indoor unit
Gas service port
<Low pressure>
LED 1
CAUTION
• 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.
Step 3.1 Fixing the outdoor unit in
place
Wall
Correct
WARNING
• Be sure to fix the power cables and communication
cable with a cable clamp.
Soft rubber designed to cut off vibration from
rack to wall (not supplied with product)
Display
2 Fix the plate hanger on two studs.
X
Valve
1
1 Use stud finder to find out locations of the studs.
• The pipe should not project from the rear of the
indoor unit.
Optional: Fixing the outdoor unit to a wall with
a rack
N(1)
When fixing the indoor unit on a gypsum board
(Unit : mm)
NOTE
• If you want to shorten or extend the pipes, see Step
2.7 Shortening or extending the refrigerant pipes
(assembly pipe).
• If the outdoor unit is exposed to strong winds, install
shield plates around the outdoor unit so that the fan
can operate correctly.
Step 3.2 Connecting the cables and
the refrigerant pipes
3 Attach the installation plate to the wooden upright
using tapping screws.
Outdoor Unit Installation
Plastic anchor
20 mm
Pipe
• Secure the rubber legs to help prevent the generation
of noise and vibration.
• Install the rack close to the column as much as
possible.
2 Attach the wooden uprights to the window frame
giving attention to the weight of the indoor unit.
Torque (kgf•cm)
NOTE
NOTE
• Make sure that the wall can support the weights of
the rack and the outdoor unit.
1 Determine the positions of the wooden uprights to
be attached to the window frame.
Y
Step 2.5 Optional: Changing the
direction of the drain hose
1
1 minute
Liquid service port
<High pressure>
Gas service port
<Low pressure>
2
Off
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