Fujitsu AG * V09LAC Series Service Instruction page 82

CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING
(1) Cut a 65 mm diameter hole in the wall at the position shown in (Fig.
5).
(2) Always align the center of the wall hole. If misaligned, water leakage
will occur.
(3) Cut the wall pipe to match the wall thickness, stick it into the wall cap,
fasten the cap with vinyl tape, and stick the pipe through the hole.
(The connection pipe is supplied in the installation set.) (Fig. 5)
(4) For left piping and right piping, cut the hole a little lower so that drain
water will flow freely. (Fig. 5)
WARNING
Fasten with
If the wall pipe is not used, the
vinyl tape
cord interconnecting the indoor
and outdoor units may touch
metal and cause electric leakage.
(Wall cap)
(Wall pipe)
(Inside) Wall (Outside)
FORMING PIPE
(1) Pass the refrigerant pipe through the piping hole to indoor side.
(2) Arrange the pipes according to the direction of piping.
Fig. 6 Left piping
Rear piping
Back wall
245
280
690
Center of
Right piping
wall holl
Back wall
Floor
100
130
INDOOR UNIT INSTALATION
G
Use the included and fasten the indoor unit at 4 locations (c) each at top and the middle of the unit.
G
When the unit is set to the wall,use the wall hook brackt and hook the top of the indoor unit on the
indoor unit wall hook bracket.
WARNING
[Installation of indoor unit]
• Fix the indoor unit with 4 screws surely.If improperly installed, might cause
to injury due to the toppling or falling.
• Install the indoor unit at the place that has adequate strength.
Install the indoor unit so that the installed unit can withstand the weight
of adult body weight.
If improperly installed, might cause accidental injury due to the toppling or
falling.
INSTALLING THE WALL HOOK BRACKET
(1) Install the wall hook bracket so that it is correctly positioned
horizontally and vertically. If the wall hook bracket is tiled,
water will drip to the floor.
(2) Install the wall hook bracket so that it is strong enough to
withstand the weight of an adult.
G
Fasten the wall hook bracket to the wall with 5 or more screws
through the holes near the outer edge of the bracket.
G Check that there is no rattle at the wall hook bracket.
CAUTION
Install the wall hook bracket horizontally and perpendicularly.
INDOOR UNIT WIRING
(1) Remove the terminal cover.
(2) Remove the cord clamp.
(3) Bend the end of the connection cord as shown in the figure.
Fig. 11
Screw
Cord clamp
Terminal cover
(1) Match the terminal block numbers and connection cord colors with
those of the outdoor unit.
Erroneous wiring may cause burning of the electric parts.
(2) Connect the connection cords firmly to the terminal block. Imperfect instal-
lation may cause a fire.
Cord clamp (3) Always fasten the outside covering of the connection cord with the
cord clamp. (If the insulator is chafed, electric leakage may occur.)
(4) Securely earth the connection cord.
(5) Do not use the earth screw for an external connector. Only use for inter-
connection between two units.
Connection cord
Place the terminal cover surely after connecting the connection cable with the
terminal of the indoor unit.
If not placed the terminal cover, might cause smoke emission or fire.
CONNECTION STATEMENT OF WIRE
Wire
OK NG
Wire tube
Wire tube
FINISHING
(1) Insulate between pipes.
G
Overlap the connection pipe heat insulation and indoor unit pipe heat insulation.
G
Wrapping the connection pipe with cloth tape over the range within which they fit into
the rear piping housing section.
G
Fasten the pipe bracket with the screw (Fig.12).
(2) Fill the gap between the outside wall pipe hole and the pipe with sealer so that rain
water and wind cannot blow in.
(3) Fasten the drain hose to the outside wall, etc.
Fig. 12
Cloth tape
Wrap the each pipe
with cloth tape
Pipe bracket
screw
Fig. 5
FOR RIGHT or LEFT REAR PIPING
(The following figure is a front view of the indoor unit installation
location.)
59
FOR RIGHT or LEFT Bottom PIPING
FOR LEFT PIPING FOR RIGHT PIPING
54 54
30
29 182 64 29
Fig. 7
423
124
703
Hook the indoor unit to the wall
hook bracket (2 positions)
Fig. 8
Leveling
method
weight
(4) Connect the end of the connection cord fully into the terminal block.
(5) Fasten the connection cord with a cord clamp.
Indoor unit terminal block Outdoor unit terminal block
1 2 3 4
1 2 3 L N
Connection cord
Earth screw
CAUTION
WARNING
TREATMENT OF WIRE
OK NG NG
Wire
Wire tube
Fig. 13
Left piping
For connection from the left rear
Connection cord
Wall pipe Connection cord
Connection
Pipe
pipe
Drain hose
Drain hose
Accumulated
Stopping No upward
drain water
downward slope
Cable
Fig. 1 Fig. 2 Fig. 3
Right side of
End of drain hose
is immersed in
pipe bracket
50 mm or less
water.
from ground
Drainage
channel Fig. 5 Fig. 6
Fig. 4
NOTE ON DRAIN HOSE
The drain hose can be connected at either side of
the indoor unit.
The unit has been shipped with the drain hose
connected at left (viewed from the back of the unit)
and the drain cap applied at right.
(1) Remove the both side panels.
(2) Remove the screw and remove the drain holder from drain pan.
(3) Pull out the drain cap.
(4) Connect the drain hose to the right, attach the screw and insert the
drain cap to the left.
59
CAUTION
(1) In order to align the drain hose and drain cap, be
sure to insert securely and vertically. Incline insertion
will cause water leakage.
(2) When inserting, be sure not to attach any material
besides water. If any other material is attached, it
will cause deterioration and water leakage.
(3) After removing drain hose, be sure not to forget
mounting drain cap.
(4) Be sure to fix the drain hose with tape to the bottom
of piping.
Installation method of Drain cap
G Use a hexagonal wrench (4mm at op-
posite side) to insert the drain cap, till
the drain cap contacts the tip of drain
Hexagon
cook.
wrench
CONNECTING THE PIPING
CONNECTION
(1) Install the outdoor unit wall cap (supplied with the optional installation set
or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
(3) After matching the center of the flare surface and tightening the nut hand
tight, tighten the nut to the specified tightening torque with a torque wrench.
(Table 2)
FLARING
(1) Cut the connection pipe to the necessary
Check if [L] is flared uniformly
length with a pipe cutter.
and is not cracked or scratched.
(2) Hold the pipe downward so that cuttings will
not enter the pipe and remove the burrs.
(3) Insert the flare nut onto the pipe and flare
the pipe with a flaring tool.
438
Insert the flare nut (always use the flare nut
attached to the indoor and outdoor units
respectively) onto the pipe and perform the
flare processing with a flare tool.
Use the special R410A flare tool, or the conv-
entional (for R22) flare tool.
124 When using the conventional flare tool, always
Die
use an allowance adjustment gauge and secure
the A dimension shown in table 3 .
Fig. 10
Indoor unit pipe
Torque
wrench
Connection
pipe To prevent gas leakage, coat the flare
Tighten
with two wrenches. surface with refrigerator oil.
Wrench (fixed)
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 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.)
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 simultaneously
flash slowly.)
1. INDOOR UNIT
Earth screw
(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?
WIRED REMOTE CONTROL UNIT (OPTIONAL)
1. SIDE PANEL L AND CONTROL COVER REMOVAL
(1) Refer to "SIDE PANEL LR REMOVAL AND INSTALLATION" to remove the
side panel L.
(2) Remove the control cover.
2. CONNECTING TO CONTROL UNIT OF WIRE
(1) Connect the wire of wired remote control unit to the circuit board and
screw the earth wire.
(2) Install the control cover.
(3) Use wire clamper and screw to fasten wire.
3. SIDE PANEL L INSTALLATION
Install side panel L by the reverse produres as stated in "1 SIDE PANEL L
AND CONTROL COVER REMOVAL".
CAUTION
(1) Before installing, be sure to disconnect all power supply.
(2) 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.
(3) Insure the length of wire is not over the recommended
maximum length.
(4) Before setting up the wired remote control unit, please confirm
whether air-conditioner can receive the signal.
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 and opening the 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.
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 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.
Air
(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
No upward
slope
piping.
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.
Fig. 7
DRAIN
HOSE
Drain pan
DRAIN HOSE
Screw
Drain holder
DRAIN HOSE
No gap
Drain cock
Drain cap
DRAIN CAP
Table 2 Flare nut size and tightening torque
Diameter (mm) × Torque (N-m)
Flare nut
17 × 14 ~ 18
6.35 mm dia.
22 × 34 ~ 42
9.52 mm dia.
26 × 49 ~ 61
12.7 mm dia.
Table 3 Pipe outside diameter
Pipe outside
Flare tool for
diameter
R410A, clutch type
ø 6.35 mm (1/4") 0 to 0.5
ø 9.52 mm (3/8") 0 to 0.5
ø 12.7 mm (1/2")
0 to 0.5
A
CAUTION
Pipe
(1) Fasten a flare nut with a torque wrench as instructed in this manual. If
fastened too tight, the flare nut may be broken after a long period of time
and cause a leakage of refrigerant.
(2) During installation, make sure that the refrigerant pipe is attached firmly
before you run the compressor. Do not operate the compressor under the
condition of refrigerant piping not attached properly with 2-way or 3-way
valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.
Fig. 14
Transmitter section
Test run button
Control cover
Earth wire
Connect the
wire of wired
remote
control unit
CAUTION
DRAIN CAP
Drain pan
DRAIN CAP
Screw
Drain holder
A (mm)
Conventional (R22) flare tool
Clutch type Wing nut type
1.0 to 1.5 1.5 to 2.0
1.0 to 1.5 1.5 to 2.0
1.0 to 1.5 1.5 to 2.0
Wire of wired remote control unit
Screw
Hook
Cord clump
Screw
2 ).
P/N 9316421011-04