OUTDOOR UNIT
OUTDOOR UNIT INSTALLATION
FINISHING
(1) Insulate between pipes.
●
For rear, right, and bottom piping, overlap the connection pipe heat insu-
lation 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 fit 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 fixing 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 figure,
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, fit 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.
POWER
Transmitter section
Test run button
TEST RUNNING
●
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 control unit
while the air conditioner is running, (Point the transmitter section of the remote control unit 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 control unit 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 flash slowly.)
1. INDOOR UNIT
(1) Is operation of each button on the remote control unit normal?
(2) Does each lamp light normally?
(3) Do the air flow-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?
REMOTE CONTROL UNIT INSTALLATION
1. REMOTE CONTROL UNIT HOLDER INSTALLA-
TION
•
Install the remote control unit with a distance of 23
ft(7 m) between the remote control unit and the pho-
tocell as the criteria. However, when installing the re-
mote control unit, check that it operates positively.
•
Install the remote control unit holder to a wall, pillar,
etc. with the tapping screw.
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.
Overlap the insulation
Bind the pipes together so
that there is no gap.
Connection pipe
(heat insulation)
Vinyl tape
Indoor unit pipe
(heat insulation)
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
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 stand-
ards 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 com-
pany 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 insufficient, change the contracted ca-
pacity.
(2) When the voltage is low and the air conditioner is
difficult to start, contact the power company the
voltage raised.
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the operat-
ing manual:
(1) Starting and stopping method, operation switching, temperature
adjustment, timer, air flow switching, and other remote control unit
operations.
(2) Air filter removal and cleaning, and how to use the air louvers.
(3) Give the operating and installation manuals to the customer.
CAUTION
(1) Check that the indoor unit correctly receives the
signal from the remote control unit, then install
the remote control unit holder.
(2) Select the remote control unit 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 control unit
holder fixing
Remote control
unit holder
Tapping
screw
(small)
Remote control
unit mounting
Remote
control unit
2
Push
1
Set
Front panel
Bearing
Mounting shaft
Intake grille
Intake grille
Knob
Top hooks
(two sides)
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
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 control unit
Press the TEST RUN button after starting the cooling operation by the remote control unit.
The operation indicator lamp and timer indicator lamp will begin to flash simultaneously during test run.
When using the MANUAL AUTO button of the indoor unit (The remote control unit 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 control unit 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 insula-
tion 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 specified, 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 pressure in the
refrigeration cycle that leads to breakage and even injury.
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
hexagon wrench.
t
(1) Remove the cap, and connect the gauge manifold and the vacuum
pump to the charging valve by the service hoses.
(2) Vacuum the indoor unit and the connecting pipes until the pressure
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 specified 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 terminal.
(4) Fasten the power supply cord and connection cord with cord clamp.
Direction of the service
panel removal
Service cover
Hook
(3 places)
Power supply
cord or connec-
tion cord
30 mm (1-3/16")
40 mm (1-9/16")
or more
Earth wire
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 firmly.
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 fire hazard may also exist. There-
fore, be sure all wiring is tightly connected.
Connect wires to the matching numbers of terminals.
1
2
3
4
5
(L)
(N)
1
2
3
G
G
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
Power supply line
Single-phase, 230/208 V
CIRCUIT
BREAKER
OR FUSE
(FIELD
SUPPLY)
G
G
Control box
Terminal
Power supply cord
Connection cord
(indoor unit and
outdoor unit
connection cord)
Cord clamp
Earth screw
Indoor unit
terminal block
Outdoor unit
terminal block
Disconnect switch
Earth screw
Power supply line
G
1
2
3
4
1
2
3
4
5
G
G
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 and circuit breaker for over current pro-
tection given in the table below is to be installed between
the indoor unit and the outdoor unit.
Disconnect switch
Circuit breaker (or Fuse)
20A
240 V - 5A
Plug
Lock
nut
Inter-unit line
Power supply
(1) Outdoor unit to be fasten with bolts at the four places indicated by the
arrows without fail.
Bottom side
Drain pipe
mounting place
650 mm
(25-19/32")
4-ø 12 hole
370 mm
(14-9/16")
(2) Fix securely with bolts on a solid block. (Use 4 sets of commercially
available M10 bolt, nut and washer.)
Bolt
Nut
Block
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)
Tightening torque
Charging port cap
9.52 mm (3/8 in.)
15.88 mm (5/8 in.)
Blank
cap
CAUTION
1
Do not purge the air with refrigerants, but use a vacuum
pump to vacuum the installation! There is no extra re-
frigerant 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 vacuum
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.
Earth screw
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