OUTDOOR UNIT
OUTDOOR UNIT INSTALLATION
FINISHING
(1) Insulate between pipes.
●
For rear, right, and bottom piping, overlap the connection pipe heat in-
sulation and indoor unit pipe heat insulation and bind them with vinyl
tape so that there is no gap.
●
For left and left rear piping, butt the connection pipe heat insulation and
indoor unit pipe heat insulation together and bind them with and vinyl
tape so that there is no gap.
●
For left and left rear piping, wrap the area which accommodates the rear
piping housing section with cloth tape.
●
For left and left rear piping, bind the connection cord to the top of the
pipe with vinyl tape.
●
For left and left rear piping, bundle the piping and drain hose together
by wrapping them with cloth tape over the range within which they fi t
into the rear piping housing section.
(2) Temporarily fasten the connection cord along the connection pipe with
vinyl tape. (Wrap to about 1/3 the width of the tape from the bottom of the
pipe so that water does not enter.)
(3) Fasten the connection pipe to the outside wall with saddles, etc.
(4) Fill the gap between the outside wall pipe hole and the pipe with sealer
so that rain water and wind cannot blow in.
(5) Fasten the drain hose to the outside wall, etc.
FRONT PANEL REMOVAL AND INSTALLATION
THE INTAKE GRILLE REMOVAL
(1) Open the intake grille.
(2) Pull down the knob.
(3) Lift the intake grille upward, until the axle at the top of the
intake grille is removed.
THE INTAKE GRILLE INSTALLATION
(1) The fi xing axle of the intake grille is installed on the Panel.
(2) Lay down the intake grille.
THE FRONT PANEL REMOVAL
(1) Remove intake grille (Reference the intake grille removal.)
(2) Remove six screws.
(3) The thumb is hung on the lower part as shown in the fi gure,
and it pulls to the front, pushing [-] mark , and bottom hooks
(two position) is removed from wall hook bracket.
(4) The front panel is pulled to the front, raising the upper sur-
face, and a front panel is removed.
THE FRONT PANEL INSTALLATION
(1) Firstly, fi t the lower part of the front panel, and insert top
and bottom hooks. (Three top sides)
(2) Six screws is attached.
(3) The intake grille is attached.
TEST RUNNING
WARNING
(1) Install the unit where it will not be tilted by more than 3°. However, do not install the unit with it tilted
towards the side containing the compressor.
(2) When installing the outdoor unit where it may exposed to strong wind, fasten it securely.
Check the following:
GOOD
Lifted up
Saddle
Wave
End in water
BAD
BAD
BAD
Drain hose
For connection from the left rear
Connection cord
Wall pipe
Connection pipe
Drain hose
Left piping
Connection cord
Pipe
Drain hose
Pipe
Drain hose
Cloth tape
Wrap with
cloth tape
Pipe
(Saddle)
(Outside wall cap)
(Sealer putty)
(Outdoors)
Wall
Front panel
Bearing
Mounting shaft
Intake grille
Intake grille
Knob
Top holes (two sides)
Top hole (center)
Top hook (center)
Front panel
Indoor unit
CAUTION
Install the front panel and INTAKE GRILLE securely. If installation is imperfect, the front panel or INTAKE GRILLE may fall
off and cause injury.
Wall hook bracket
Front panel
Push
[-] mark
Screws (6 position)
Push
Front panel
AIR PURGE
Lo
Hi
Gauge manifold
Service hose
Vacuum pump
Connecting pipe
Blank cap
Hexagon wrench
3-way valve
Charging port
Cap
Service hose
with valve core
Outdoor unit
Use a 4 mm hexa-
gon wrench.
(1) Remove the cap, and connect the gauge manifold and the vacu-
um pump to the charging valve by the service hoses.
(2) Vacuum the indoor unit and the connecting pipes until the pres-
sure gauge indicates –0.1 MPa (–76 cmHg).
(3) When –0.1 MPa (–76 cmHg) is reached, operate the vacuum
pump for at least 60 minutes.
(4) Disconnect the service hoses and fit the cap to the charging
valve to the specifi ed torque.
(5) Remove the blank caps, and fully open the spindles of the
3-way valves with a hexagon wrench [Torque: 6~7 N·m (60 to 70
kgf·cm)].
(6) Tighten the blank caps of the 3-way valve to the specified
torque.
CAUTION
Use a clean gauge mani-
fold and charging hose for
R410A exclusively.
ELECTRICAL WIRING (OUTDOOR UNIT)
(1) Service cover removal
• Remove the two mounting screws.
• Remove the service cover by pushing downwards.
(2) Fasten the power supply cord and the connection cord to the
conduit holder using the lock nut.
(open the knock out holes if necessary)
(3) Connect the power supply cord and the connection cord to ter-
minal.
(4) Fasten the power supply cord and connection cord with cord
clamp.
Hook
(3 places)
30 mm (1
-3/1
6")
Keep the earth wire longer than the other wires.
CAUTION
Be sure to comply with local codes while running the
wire from the indoor unit to the outdoor unit (size of
wire and wiring method, etc. ).
Every wire must be connected fi rmly.
No wire should be allowed to touch refrigerant tubing,
the compressor or any moving part.
Loose wiring may cause the terminal to overheat or
result in unit malfunction. A fi re hazard may also exist.
Therefore, be sure all wiring is tightly connected.
Connect wires to the matching numbers of terminals.
1
2
3
1
2
3
G
G
L1
L2
INDOOR
INDOOR UNIT
OUTDOOR UNIT
TERMINAL
DISCON-
NECT
SWITCH
(FIELD
SUPPLY)
Grounding
line
14AWG
(Inter-unit)
Power lines
230/208 V
230/208 V
230/208 V
TERMINAL
P
ower supply line
Single-phase, 230/208
V
G
G
Control box
Terminal
Power supply cord
Connection cord
(indoor unit and
outdoor unit
connection cord)
Cord clamp
CAUTION
When connecting the power supply cord, make sure that
the phase of the power supply matches with the phase of
the terminal board. If the phases do not match, the
compressor will rotate in reverse and will not be able to
compress.
WARNING
Disconnect switch for over current protection given in
the table below is to be installed between the indoor
unit and the outdoor unit.
Disconnect switch
20A
Lock
nut
Inter-unit line
Power supply
CAUTION
1
Do not purge the air with refrigerants, but use a
vacuum pump to vacuum the installation! There is no
extra refrigerant in the outdoor unit for air purging!
2
Use a vacuum pump and gauge manifold and charg-
ing hose for R410A exclusively. Using the same vacu-
um for different refrigerants may damage the vacuum
pump or the unit.
3
After connecting the piping, check the all joints for
gas leakage with gas leak detector.
4
When inspecting gas leakage, always use the vacuum
pump for pressure. Do not use nitrogen gas.
WARNING
Do not turn on the power until all installation work is complete .
CAUTION
When restarting after a long period of disuse in the winter, turn
the power switch on at least 12 hours before starting the unit.
POWER
WARNING
(1) The rated voltage of this product is 208/230 V AC
60 Hz.
(2) Before turning on the power, check if the voltage
is within the 208 V -10 % to 230 V +10% range.
(3) Always use a special branch circuit and install a
special receptacle to supply power to the room
air conditioner.
(4) Use a circuit breaker and receptacle matched to
the capacity of the air conditioner.
(5) Do not extend the power cord.
(6) Perform wiring work in accordance with stan-
dards so that the air conditioner can be operated
safely and positively.
(7) Install a leakage circuit breaker in accordance
with the related laws and regulations and electric
company standards.
CAUTION
(1) The power source capacity must be the sum of
the air conditioner current and the current of
other electrical appliances. When the current
contracted capacity is insuffi cient, change the
contracted capacity.
(2) When the voltage is low and the air conditioner is
diffi cult to start, contact the power company the
voltage raised.
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the oper-
ating manual:
(1) Starting and stopping method, operation switching, temperature
adjustment, timer, air fl ow switching, and other remote controller
operations.
(2) Air fi lter removal and cleaning, and how to use the air louvers.
(3) Give the operating and installation manuals to the customer.
Transmitter section
Test run button
●
Perform test operation and check items 1 and 2 below.
●
For the test operation method, refer to the operating manual.
●
The outdoor unit, may not operate, depending on the room temperature. In this case, press the test run button on the remote controller
while the air conditioner is running, (Point the transmitter section of the remote controller toward the air conditioner and press the test
run button with the tip of a ball-point pen, etc.)
●
To end test operation, press the remote controller START/STOP button.
(When the air conditioner is run by pressing the test run button, the OPERATION indicator lamp and TIMER indicator lamp will simultane-
ously fl ash slowly.)
1. INDOOR
UNIT
(1) Is operation of each button on the remote controller normal?
(2) Does each lamp light normally?
(3) Do the air fl ow-direction louver operate normally?
(4) Is the drain normal?
2. OUTDOOR
UNIT
(1) Is there any abnormal noise and vibration during operation?
(2) Will noise, wind, or drain water from the unit disturb the neighbors?
(3) Is there any gas leakage?
(1) Outdoor unit to be fasten with bolts at the four places
indicated by the arrows without fail.
(2) F i x s e c u r e l y w i t h
b o l t s o n a s o l i d
block. (Use 4 sets of
commercially avail-
able M10 bolt, nut
and washer.)
(3) Since the drain water fl ows out of the outdoor unit during heat-
ing operation, install the drain pipe and connect it to a commer-
cial 16 mm (5/8") hose. (Reverse cycle model only)
(4) When installing the drain pipe, plug all the holes other than the
drain pipe mounting hole in the bottom of the outdoor unit with
putty so there is no water leakage. (Reverse cycle model only)
CAUTION
When the outdoor temperature is 32 °F or less, do not use the ac-
cessory drain pipe and drain cap. If the drain pipe and drain cap
are used, the drain water in the pipe may freeze in extremely cold
weather. (Reverse cycle model only)
Bolt
Nut
Block
REMOTE CONTROLLER INSTALLATION
1. REMOTE CONTROLLER HOLDER INSTALLA-
TION
•
Install the remote controller with a distance of 23 ft (7
m) between the remote controller and the photocell
as the criteria. However, when installing the remote
controller, check that it operates positively.
•
Install the remote controller holder to a wall, pillar,
etc. with the tapping screw.
CAUTION
(1) Check that the indoor unit correctly receives the
signal from the remote controller, then install the
remote controller holder.
(2) Select the remote controller holder selection site
by paying careful attention to the following:
Avoid places in direct sunlight.
Select a place that will not be affected by the
heat from a stove, etc.
Remote controller
holder fi xing
Remote controller
holder
Tapping
screw
(small)
Remote controller
mounting
Remote controller
2
Push
1
Set
PUMP DOWN OPERATION (FORCED COOLING OPERATION)
To avoid discharging refrigerant into the atmosphere at the time of relocation or disposal, recover refrigerant by doing the cooling operation
or forced cooling operation according to the following procedure. (When the cooling operation cannot start in winter, and so on, start the
forced cooling operation.)
(1) Do the air purging of the charge hose by connecting the charging hose of gauge manifold to the charging port of 3 way valve (large) and
opening the low-pressure valve slightly.
(2) Close the valve stem of 3 way valve (small) completely.
(3) Start the cooling operation or following forced cooling operation.
When using the remote controller
Press the TEST RUN button after starting the cooling operation by the remote controller.
The operation indicator lamp and timer indicator lamp will begin to fl ash simultaneously during test run.
When using the MANUAL AUTO button of the indoor unit (The remote controller is lost, and so on.)
Keep on pressing the MANUAL AUTO button of the indoor unit for more than 10 seconds.
(The forced cooling operation cannot start if the MANUAL AUTO button is not kept on pressing for more than 10 seconds.)
(4) Close the valve stem of 3 way valve (large) when the reading on the compound pressure gage becomes 0.05~0 MPa (0.5~0 kg/cm
2
).
(5) Stop the operation.
• Press the START/STOP button of the remote controller to stop the operation.
• Press the MANUAL AUTO button when stopping the operation from indoor unit side.
(It is not necessary to press on keeping for more than 10 seconds.)
CAUTION
Install heat insulation around both the gas and liquid pipes. Failure to do so may cause water leaks.
Use heat insulation with heat resistance above 248 °F. (Reverse cycle model only)
In addition, if the humidity level at the installation location of the refrigerant piping is expected to exceed 70%, install heat insu-
lation around the refrigerant piping. If the expected humidity level is 70-80%, use heat insulation that is 15 mm or thicker and if
the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker.
If heat insulation is used that is not as thick as specifi ed, condensation may form on the surface of the insulation.
In addition, use heat insulation with heat conductivity of 0.045 W/(m·K) or less (at 68 °F).
CAUTION
During the pump-down operation, make sure that the compressor is turned off before you remove the refrigerant piping.
Do not remove the connection pipe while the compressor is in operation 3 way valve open. This may cause abnormal pres-
sure in the refrigeration cycle that leads to breakage and even injury.
This air conditioner can be connected with the following optional kits.
Wired remote controller
•
External input/output kit
•
BEFORE INSTALL WIRED REMOTE CONTROLLER
When you use wired remote controller, some functions may not be used.
•
Please use the recommended wired remote controller.
•
CAUTION
(1) Before installing, be sure to disconnect all power supply.
(2) Don’t touch the heat exchanger.
(3) During installing or removing operation, be sure not to have wire caught by parts or draw it hard. Or it may result troubles
to the air-conditioner.
(4) Avoid place in direct sunlight.
(5) Select place that will not be affected by the heat from a stove, etc.
(6) Before setting up the optional kit, please confi rm whether air-conditioner can receive the signal.
(7) Do not connect the wired remote control to the terminal for power supply.
(8) When connecting the wired remote controller with the indoor unit, please use the connecting cord packaged up with the
wired remote controller.
(9) Recommended cord length of wired remote controller is 10m. Make sure to do insulate of connecting part when extended
the cord.
1. REMOTE CONTROLLER CORD MODIFICATION
(1) Use a tool to cut off the terminal on the end of the remote
controller cord,and then remove the insulation from
the cut end of the cord.
(2) Connect the remote controller cord and connecting cord.
(supplied with wired remote controller)
Important:
Be sure to insulate the connection between the cords.
2. FRONT PANEL, CONTROL BOX COVER AND DISPLAY CASE REMOVEL
(1) Refer to “FRONT PANEL REMOVAL AND INSTALLATION“to remove the front panel.
(2) Remove the screw then remove the control box cover.
(3) Remove the display case and connector.
Connecting cord
White
Red
White
Red
Black
Black
Insulated
connection
Remote
controller cord
Remote
controller cord
20 mm
1
3/1
6”
screw
control box
cover
connector
display case
3. CONNECTING CORD TO CONTROL BOARD CONNECTOR
(1) Pass the cord from the hole in the back of indoor unit.
(2) Connect the cord to the control board connector.
(3) Hook the cord to the rib.
Option type
Connector No
Wired remote controller
CN6
External input
CN14
External output
CN16
(4) Use cord clamper and screw to fasten the cord of wired remote controller.
(5) Fix the binder clamp with the screw and bind the wire of external kit with the binder.
4. FRONT PANEL, CONTROL BOX COVER AND DISPLAY CASE INSTALLATION
Install front panel, control box cover and display case by the reverse procedures as stated in “2.FRONT PANEL,
CONTROL BOX COVER AND DISPLAY CASE REMOVAL”.
cord clamper
screw
conduit holder
cord clamper
cord of
wired
remote
controller
original wire of
control unit
screw
INDOOR UNIT
PCB
TERMINAL
connect the
cord
rib
hole
conduit holder
screw
binder clamp
original wire of
control box
binder clamp
screw
binder
external connect wire
Direction of the service
panel removal
Service cover
Power supply
cord or connec-
tion cord
Earth wire
40 mm (1
-9/1
6")
or more
Overlap the insulation
Bind the pipes together so
that there is no gap.
Connection pipe
(heat insulation)
Vinyl tape
Indoor unit pipe
(heat insulation)
Tightening torque
Charging port cap
Blank cap
20 to 25 N•m (200 to 250 kgf•cm)
30 to 35 N•m (300 to 350 kgf•cm)
10 to 12 N•m (100 to 120 kgf•cm)
9.52 mm (3/8 in.)
15.88 mm (5/8 in.)
OPTIONAL KIT INSTALLATION(OPTION)
Drain pipe mounting hole
Drain pipe
Power supply line
G
1
2
3
4
1
2
3
L1 L2
G
G
Earth screw
Earth screw
Earth screw
Disconnect switch
Indoor unit
terminal block
Outdoor unit
terminal block
Base
WARNING
If refrigerant leaks while work is being carried out, ven-
tilate the area. If the refrigerant comes in contact with a
fl ame, it produces a toxic gas.
Bottom side
Drain cap mount-
ing place
Drain pipe
mounting place
650 mm
(25-19/32")
4-ø 12 hole
370 mm
(1
4-9/1
6")
Top hooks
(two sides)
NOTE:
Factory installed protective inline fuses for indoor units’ conductors
are installed on the Power Supply PCB.
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