Fujitsu ASU9RLQ Service Instructions Manual page 80

ELECTRICAL WIRING (INDOOR UNIT)
HOW TO THE INSTALL THE INTER-UNIT WIRE HARNESS
1. Remove the screws, then remove the conduit holder. Fig. 12
2. Fasten the inter-unit wire harness to the conduit holder using the lock nut.
IMPORTANT: Refer to Fig. 19 about the length of inter-unit wire harness.
3. Use the screws to install the conduit holder with which Inter-unit wire har-
ness is included.
4. Remove the screws, then remove the cord clamp.
5. Connect inter-unit wire harness to the terminal.
Refer to the wiring diagram.
6. Use the screws to install the cord clamp.
Lock nut
Conduit Holder
Screw
Fig. 13
Cord clamp
Cord clamp
Screw
Screw
Connection cord Connection cord
HOW TO CONNECT WIRING TO THE TERMINALS
A. For solid core wiring (or F-cable) Fig. 14
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
A. Solid wire B. Strand wire
the insulation to about 15/16" (25 mm) to expose the solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board. Loop
(3) Using pliers, bend the solid wire to form a loop suitable for the termi-
nal screw.
(4) Shape the loop wire properly, place it on the terminal board and
tighten securely with the terminal screw using a screwdriver.
Insulation
B. For strand wiring
Screw with
special washer
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 3/8" (10 mm) to expose the strand wiring.
Round
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
terminal
board.
Terminal
Wire
(3) Using a round terminal fastener or pliers, securely clamp a round
board
terminal to each stripped wire end.
Wire
(4) Position the round terminal wire, and replace and tighten the termi-
nal screw using a screwdriver.
Terminal block
CAUTION
(1) Match the terminal block numbers and connection (3) Always fasten the outside covering of the connection
cord colors with those of the outdoor unit. cord with the cord clamp. (If the insulator is chafed,
electric leakage may occur.)
Erroneous wiring may cause burning of the elec-
tric parts. (4) Securely earth the power cord plug.
(2) Connect the connection cords firmly to the terminal (5) Do not use the earth screw for an external connector.
block. Imperfect installation may cause a fire. Only use for interconnection between two units.
WIRED REMOTE CONTROL UNIT (OPTIONAL)
BEFORE INSTALL WIRED REMOTE CONTROL UNIT
• The wired remote control unit is an option. It isn't included in main body of air-conditioner.
• When you use wired remote control unit, some functions may not be used.
• please use the recommended wired remote control unit.
(Before installing, Please read the FEATURES AND FUNCTIONS section of OPERATING MANUAL to confirm the
concerned contents.)
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 catched 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) Insure the length of wire is not over the recommended maxuim length.
(7) Before setting up the wired remote control unit, please confirm whether air-conditioner can receive the
signal.
1. FRONT PANEL AND CONTROL UNIT REMOVAL
(1) Refer to " FRONT PANEL REMOBAL AND INSTALLATION " to remove the front panel.
(2) Remove screws of the heat exchanger, ang then remove grounding wire.
(3) Remove 2 thermistor.
(4) Remove screw, then remove the connector cover and connector.
(5) Remove screw, then remove the control unit.
CONTROL UNIT
THERMISTOR HOLDER
SCREW
THERMISTOR CONNECTOR
SCREW SCREW
CONNECTOR COVER
SCREW
EARTH WIRE
FINISHING
Fig. 15
(1) Insulate between pipes.
G For rear, right, and bottom piping, overlap the connection pipe
Indoor unit pipe (heat insulation)
heat insulation and indoor unit pipe heat insulation and bind
them with vinyl tape so that there is no gap.
G For left and left rear piping, butt the connection pipe heat insula-
Connection pipe
tion and indoor unit pipe heat insulation together and bind them (heat insulation)
with and vinyl tape so that there is no gap.
Pipe
G
For left and left rear piping, wrap the area which accommodates
the rear piping housing section with cloth tape.
G For left and left rear piping, bind the connection cord to the top
Drain hose Cloth tape
of the pipe with vinyl tape.
G For left and left rear piping, bundle the piping and drain hose
together by wrapping them with cloth tape over the range within
Connection cord
which they fit into the rear piping housing section.
Conduit Connector
(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 a saddle, 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.
For connection from the left rear
(5) Fasten the drain hose to the outside wall, etc.
Wall pipe
Fig. 16
(Outside wall cap)
(Saddle)
(Sealer putty)
Check the following:
GOOD
(Outdoors)
Drain hose
Pipe
Wall Saddle
FRONT PANEL REMOVAL AND INSTALLATION
THE INTAKE GRILLE REMOVAL
(1) Open the intake grille. Fig. 17
(2) Pull down the knob.
Round
(3) Lift the intake grille upward, until the axle at the top of the intake
terminal
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 four screws.
(3) The thumb is hung on the lower part as shown in the figure, and it
Screw with
pulls to the front, pushing [-] mark , and bottom hooks (two posi-
special washer
tion) is removed from wall hook bracket.
(4) The front panel bottom is pulled to the front, and bottom hooks is
Round removed indoor unit.
(5) The front panel is pulled to the front, raising the upper surface, Push
terminal
Push
and a front panel is removed. [-] mark
THE FRONT PANEL INSTALLATION
(1) Firstly, fit the lower part of the front panel, and insert top and bot-
tom hooks. (Three top sides, six bottom sides)
(2) Four screws is attached.
(3) The intake grille is attached.
Top holes (two sides)
Bottom hooks
Top hole (center)
(six position)
Indoor unit
Indoor unit
Front panel
Bottom hole
(six position)
2. Connecting to control unit of wire
(1) Connect the wire of wired remote control unit to the board of Control unit.
(2) Use wire clamper and screws to fasten wire.
(3) Cut off part of the control unit and thread wire through.
CONNECTOR
CIRCUIT BOARD
SCREW
TO RENOTE
CLAMPER
CONNTROL UNIT
3. FRONT PANEL AND CONTROL UNIT INSTALLATION
Install Front panel and Control unit by the reverse procedures as stated in "1. FRONT PANEL AND CONTROL UNIT REMOVAL".
TEST RUNNING
G Perform test operation and check items 1 and 2 below.
G For the test operation method, refer to the operating manual.
Seal A
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
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.)
Vinyl tape
G To end test operation, press the remote control unit START/STOP button.
Butt connection pipe (heat
insulation) against the indoor
(When the air conditioner is run by pressing the test run button, the OPERATION indicator lamp and TIMER indicator lamp will simultaneously
unit pipe (heat insulation)
flash slowly.)
and wrap with seal A so that
there is no gap.
Wrap with 1. INDOOR UNIT
cloth tape
(1) Is operation of each button on the remote control unit normal?
(2) Does each lamp light normally?
Left piping (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?
Pipe
(3) Is there any gas leakage?
Drain hose
POWER
Connection cord
WARNING
(1) The rated voltage of this product is 208/230 V AC
Connection pipe
60 Hz.
Drain hose (2) Before turning on the power, check if the voltage
is within the 208 V-10% to 230V+10% range.
View from indoors
(3) Always use a special branch circuit and install a
BAD BAD BAD
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.
Lifted up Wave End in water
(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.
Intake grille
Intake grille
Mounting shaft
Bearing
PUMP DOWN OPERATION (FORCED COOLING OPERATION)
Knob
Front panel
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.)
Screws
(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 and opening the
(4 position)
Front panel
low-pressure valve slightly.
(2) Close the valve stem of 2 way valve 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.
Front panel
The operation indicator lamp and timer indicator lamp will begin to flash simultaneously during test run.
Wall hook bracket
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 when the reading on the compound pressure gage becomes 0.05~0 MPa (0.5~0 kg/cm
(5) Stop the operation.
Top hook (center) • Press the START/STOP button of the remote control unit to stop the operation.
Front panel
• 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.)
Top hooks
During the pump-down operation, make sure that the compressor is turned off before you remove the refrigerant piping.
(two sides)
Do not remove the connection pipe while the compressor is in operation with 2 way or 3 way valve open. This may cause abnormal
pressure in the refrigeration cycle that leads to breakage and even injury.
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.
Select a place that will not be affected by the heat
from a stove, etc.
1. REMOTE CONTROL UNIT HOLDER INSTALLATION
• Install the remote control unit with a distance of 23 ft(7
m) between the remote control unit and the photocell
CUT
as the criteria. However, when installing the remote con-
trol unit, check that it operates positively.
• Install the remote control unit holder to a wall, pillar,
etc. with the tapping screw (Fig.20).
The method of adjusting inter-unit wire harness
To connect inter-unit wire harness to the terminal correctly, please
refer to Fig. 19 to adjust the length of the part of Inter-unit Wire
harness ahead from conduit holder.
Fig. 18
Transmitter section
Test run button
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.
2 ).
CAUTION
Fig. 20
Remote control unit Remote control
holder fixing unit mounting
1 Set
Remote control
unit holder
2 Push
Tapping
screw
Remote
(small) control unit
Fig. 19
14AWG
(1:1)
EARTH WIRE
CONDUIT PLATE
CONDUIT CONNECTOR