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OUTDOOR UNIT
OUTDOOR UNIT INSTALLATION
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.
(1) Outdoor unit to be fasten with bolts at the four places indicated by the
(2) Fix securely with bolts on a solid block. (Use 4 sets of commercially
arrows without fail.
available M10 bolt, nut and washer.)
Bolt
Bottom side
Nut
650 mm
(25-19/32")
Drain pipe
4-ø 12 hole
mounting place
AIR PURGE
(1) Remove the cap, and connect the gauge manifold and the vacuum
Connecting pipe
pump to the charging valve by the service hoses.
(2) Vacuum the indoor unit and the connecting pipes until the pressure
Blank cap
gauge indicates –0.1 MPa (–76 cmHg).
Outdoor unit
(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
3-way valve
Service hose
the specified torque.
with valve core
Charging port
(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.
Cap
Tightening torque
9.52 mm (3/8 in.)
20 to 25 N·m (200 to 250 kgf·cm)
Gauge manifold
Blank
Use a clean gauge mani-
cap
15.88 mm (5/8 in.)
30 to 35 N·m (300 to 350 kgf·cm)
fold and charging hose
for R410A exclusively.
Charging port cap
10 to 12 N·m (100 to 120 kgf·cm)
Lo
Hi
Vacuum pump
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
Service hose
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.
FINISHING
(1) Insulate between pipes.
Overlap the insulation
G For rear, right, and bottom piping, overlap the connection pipe heat insu-
Connection pipe
lation and indoor unit pipe heat insulation and bind them with vinyl tape
(heat insulation)
so that there is no gap.
G For left and left rear piping, butt the connection pipe heat insulation and
Bind the pipes together so
that there is no gap.
indoor unit pipe heat insulation together and bind them with and vinyl
tape so that there is no gap.
G For left and left rear piping, wrap the area which accommodates the rear
piping housing section with cloth tape.
Pipe
G For left and left rear piping, bind the connection cord to the top of the
Wrap with
pipe with vinyl tape.
cloth tape
G For left and left rear piping, bundle the piping and drain hose together by
Drain hose
Cloth tape
wrapping them with cloth tape over the range within which they fit into
the rear piping housing section.
Left piping
(2) Temporarily fasten the connection cord along the connection pipe with vinyl
Connection cord
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
Pipe
Drain hose
that rain water and wind cannot blow in.
(5) Fasten the drain hose to the outside wall, etc.
For connection from the left rear
Wall pipe
Connection cord
(Outside wall cap)
Connection pipe
(Saddle)
Drain hose
(Sealer putty)
Check the following:
BAD
Drain hose
GOOD
Saddle
(Outdoors)
Lifted up
Pipe
Wall
FRONT PANEL REMOVAL AND INSTALLATION
THE INTAKE GRILLE REMOVAL
(1) Open the intake grille.
Intake grille
(2) Pull down the knob.
Mounting shaft
(3) Lift the intake grille upward, until the axle at the top of the
Bearing
intake grille is removed.
Front panel
THE INTAKE GRILLE INSTALLATION
(1) The fixing axle of the intake grille is installed on the Panel.
(2) Lay down the intake grille.
Screws (6 position)
THE FRONT PANEL REMOVAL
(1) Remove intake grille (Reference the intake grille removal.)
(2) Remove six screws.
Front panel
(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
Push
Wall hook bracket
(two position) is removed from wall hook bracket.
[-] mark
(4) The front panel is pulled to the front, raising the upper sur-
Push
face, and a front panel is removed.
Top holes (two sides)
THE FRONT PANEL INSTALLATION
(1) Firstly, fit the lower part of the front panel, and insert top and
Top hole (center)
bottom hooks. (Three top sides)
(2) Six screws is attached.
(3) The intake grille is attached.
Top hooks
Indoor unit
(two sides)
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.
05M109_9315342089_En
2
ELECTRICAL WIRING (OUTDOOR UNIT)
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.
(1) Service cover removal
• Remove the two mounting screws.
Direction of the service
panel removal
• 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.
Block
(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.
Control box
G
G
Terminal
Cord clamp
Power supply cord
Connection cord
Keep the earth wire longer than the other wires.
Hexagon wrench
(indoor unit and
outdoor unit
Use a 4 mm
connection cord)
hexagon wrench.
Earth wire
INDOOR
OUTDOOR UNIT
14AWG
CAUTION
INDOOR UNIT
(Inter-unit)
Power lines
TERMINAL
TERMINAL
230/208 V
1
1
Disconnect switch and circuit breaker for over current pro-
230/208 V
2
2
tection given in the table below is to be installed between
230/208 V
3
3
the indoor unit and the outdoor unit.
4
(L)
DISCON-
CIRCUIT
5
(N)
NECT
BREAKER
Disconnect switch
SWITCH
OR FUSE
(FIELD
(FIELD
SUPPLY)
SUPPLY)
G
G
Grounding
line
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. ).
Indoor unit
Outdoor unit
Every wire must be connected firmly.
terminal block
terminal block
No wire should be allowed to touch refrigerant tubing, the
1
2
3
4
Earth screw
1
2
3
4
5
compressor or any moving part.
Earth screw
Earth screw
Disconnect switch
G
Loose wiring may cause the terminal to overheat or result
G
G
in unit malfunction. A fire hazard may also exist. There-
fore, be sure all wiring is tightly connected.
Power supply line
Connect wires to the matching numbers of terminals.
TEST RUNNING
G Perform test operation and check items 1 and 2 below.
G For the test operation method, refer to the operating manual.
G The outdoor unit, may not operate, depending on the room temperature. In this case, press the test run button on the remote control unit
Indoor unit pipe
while the air conditioner is running, (Point the transmitter section of the remote control unit toward the air conditioner and press the test run
(heat insulation)
button with the tip of a ball-point pen, etc.)
Vinyl tape
G 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?
Transmitter section
(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?
Test run button
(3) Is there any gas leakage?
POWER
WARNING
(1) The rated voltage of this product is 208/230 V AC
(1) The power source capacity must be the sum of
60 Hz.
the air conditioner current and the current of other
(2) Before turning on the power, check if the voltage
electrical appliances. When the current contracted
is within the 208 V -10 % to 230 V +10% range.
capacity is insufficient, change the contracted ca-
BAD
BAD
pacity.
(3) Always use a special branch circuit and install a
(2) When the voltage is low and the air conditioner is
special receptacle to supply power to the room
air conditioner.
difficult to start, contact the power company the
Wave
End in water
voltage raised.
(4) Use a circuit breaker and receptacle matched to
the capacity of the air conditioner.
(5) Do not extend the power cord.
CUSTOMER GUIDANCE
(6) Perform wiring work in accordance with stand-
Explain the following to the customer in accordance with the operat-
ards so that the air conditioner can be operated
ing manual:
safely and positively.
(1) Starting and stopping method, operation switching, temperature
Intake grille
adjustment, timer, air flow switching, and other remote control unit
(7) Install a leakage circuit breaker in accordance with
operations.
the related laws and regulations and electric com-
(2) Air filter removal and cleaning, and how to use the air louvers.
Knob
pany standards.
(3) Give the operating and installation manuals to the customer.
Front panel
REMOTE CONTROL UNIT INSTALLATION
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.
Top hook (center)
Remote control unit
Select a place that will not be affected by the heat
holder fixing
Front panel
from a stove, etc.
Remote control
1. REMOTE CONTROL UNIT HOLDER INSTALLA-
unit holder
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-
Tapping
screw
mote control unit, check that it operates positively.
(small)
•
Install the remote control unit holder to a wall, pillar,
etc. with the tapping screw.
Hook
(3 places)
Service cover
Lock
nut
Plug
Inter-unit line
Power supply
Power supply
cord or connec-
tion cord
WARNING
Circuit breaker (or Fuse)
20A
240 V - 5A
CAUTION
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
(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.)
During the pump-down operation, make sure that the compressor is turned off before you remove the refrigerant piping.
CAUTION
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.
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).
Remote control
unit mounting
1 Set
2 Push
Remote
control unit
2006.1.12, 13:48
2
).
CAUTION
CAUTION
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