FUJITSU ASYA18LEC User Manual
12 34
2 Right
Remote
control unit
Tapping
screw
(small)
Remote
control unit
holder
5 cm or over
Wall hook bracket
6 cm or over
5 cm or over
150 cm or over
(Wall cap)
180 cm or over
10 cm or over
60 cm or over
10 cm or over
30 cm or over
30 cm or
over
5 cm or over
outlet
3 Bottom outlet
1 Rear
outlet
6 Center
outlet
4 Left bottom
outlet
7 Left rear
outlet
5 Left
outlet
(Rear)
piping groove in the side of the front panel with a hacksaw.
(4) Install the indoor unit on the wall where the height
from the floors more than 180 cm.
(3) If children under 10 years old may approach the
unit, take preventive measures so that they can-
not reach the unit.
(1) Do not install where there is the danger of com-
(2) Do not install near heat sources.
bustible gas leakage.
the units will not topple or fall.
[Indoor unit piping direction]
The piping can be connected in the 7 directions in the figure. When
the piping is connected in direction 2, 3, 4 or 5, cut along the
CAUTION
Install at a place that can withstand the weight of the
indoor and outdoor units and install positively so that
(5) Provide the space shown in the figure so that the air flow is not blocked.
sunlight. (If necessary, install a blind that does not interfere with
the air flow.)
dusty.
turbed by air blowing into their windows or by noise.
Also for efficient operation, leave open three of the four directions
front, rear, and both sides.
in the figure. Also install the unit where the filter can be removed.
be able to blow all over the room.
(3) Install the unit near an electric outlet or special branch circuit.
(4) Do not install the unit where it will be exposed to direct sunlight.
(5) Install the unit where connection to the outdoor unit is easy.
(6) Install the unit where the drain pipe can be easily installed.
(7) Take servicing, etc. into consideration and leave the spaces shown
2. OUTDOOR UNIT
(1) If possible, do not install the unit where it will be exposed to direct
(2) Do not install the unit where a strong wind blows or where it is very
(3) Do not install the unit where people pass.
(4) Take your neighbors into consideration so that they are not dis-
WARNING
When installing pipes shorter than 3m, sound of the outdoor unit will be transferred to the indoor unit, which will
(2) The inlet and outlet ports should not be obstructed : the air should
vibration.
SELECTING THE MOUNTING
POSITION
Decide the mounting position with the customer as follows:
1. INDOOR UNIT
(1) Install the indoor unit level on a strong wall which is not subject to
cause large operating sound or some abnormal sound.
to enter the refrigerant cycle.
• If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value
and cause breakage, injury, etc.
(2) When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant(R410A)
(1) Do not use the existing (for R22) piping and flare nuts.
• If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury,
table even when it is available on the market.
Gas leakage detector
Vacuum pump
Charge hose
Gauge manifold
Copper pipes
It is necessary to use seamless copper pipes and it is desirable
that the amount of residual oil is less than 40 mg/10m. Do not
use copper pipes having a collapsed, deformed or discolored
portion (especially on the interior surface). Otherwise, the ex-
pansion value or capillary tube may become blocked with
contaminants.
As an air conditioner using R410A incurs pressure higher than
when using R22, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in the table. Never use copper pipes thinner than that in the
Special tools for R410A
gas and liquid phases, and always charge from the liquid phase side whose composition is
Tool name
stable.
(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant
(4) When charging the refrigerant, take into account the slight change in the composition of the
(R22) models. Also, when storing the piping ,securely seal the opening by pinching ,taping, etc.
(2) Models that use refrigerant R410A have a different charging port thread diameter to prevent
erroneous charging with conventional refrigerant (R22) and for safety. Therefore, check
beforehand.[The charging port thread diameter for R410A is 1/2 UNF 20 threads per inch.]
(1) Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models,
some of the piping and installation and service tools are special.(See the table below.)
Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A
model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts.
etc.(Use the special R410A materials.)
Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous
mixing of other refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals-0.1 to 5.3 MPa (-1 to 53 bar) for high pressure.
-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.
To increase pressure resistance, the hose material and base size were changed.
A conventional vacuum pump can be used by installing a vacuum pump adapter.
Special gas leakage detector for HFC refrigerant R410A.
INSTALLATION MANUAL
However, pay careful attention to the following points:
The basic installation work procedures are the same as conventional refrigerant (R22) models.
(PART No. 9315342546-01)
SPLIT TYPE ROOM AIR CONDITIONER
This air conditioner uses new refrigerant HFC (R410A).
• Do not directly install it on
the ground, otherwise it
In places where the outdoor temperature drops to 0˚C or lower, the drain
water may freeze and may stop up the drain or cause other outdoor unit
trouble. Therefore take measures so that the drain water will not freeze
and clog the drain.
54 cm
open the front and left side.
will cause failure.
• To obtain better operation
efficiency, when the outdoor
unit is installed, be sure to
CAUTION
32 cm
Drain hose
Outdoor
unit bottom
[OUTDOOR UNIT]
CAUTION
INSTALLATION DIAGRAM OF
INDOOR AND OUTDOOR UNITS
[INDOOR UNIT]
WARNING
1/4in
1/2in
6.35mm
12.7mm
0.8mm
0.8mm
25m(82ft)
20m(66ft)
diameter
Nominal
diameter
Outer
Thickness
Maximum
length
indoor and
Maximum
(between
outdoor)
height
Contents of change
CONNECTION PIPE REQUIREMENT
STANDARD ACCESSORIES
The following installation accessories are supplied.
Drain pipe
Remote control
unit holder
Battery
unit
Remote
control
Wall hook bracket
Use them as required.
Name and Shape Q’ty Name and Shape Q’ty
● The maximum length of the piping is 25 m. The maximum height difference of the piping is 20 m,
● Be careful not to scratch the air conditioner when handling it.
● After installation, explain correct operation to the customer, using the operating manual.
● Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.
if the units are further apart than these, correct operation can not be guaranteed.
1
Insulation (Drain hose)
1
1
Air cleaning filter frame
2
2
2
Air cleaning filter
2
1
Tapping screw (small)
Tapping screw (big)
8
1
Cloth tape
1
(3) Have installation work done by authorized service personnel only.
(4) Do not use an extension cord.
(5) Do not turn on the power until all installation work is complete.
this installation manual.
(1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual.
(2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This
installation manual describes the correct connections using the standard accessories and the parts specified in
For authorized service personnel only.
WARNING
• Always make the air conditioner power supply a spe-
• Always use H07RN-F or equivalent as the power supcial branch circuit and provide a special breaker.
ply cord and the connection cord.
• Install the disconnect device with a contact gap of at
least 3 mm nearby the units. (Both indoor unit and out-
door unit)
Fuse capaclity (A) 30
MIN. 1.5
Power supply cord (mm
Connection cord (mm
2
)
2
)
MAX. 4.0
MAX. 2.5
MIN. 3.5
ELECTRICAL REQUIREMENT
• Electric wire size and fuse capacity:
Drain hose
Tapping screws
Sealant
Wall cap
Saddle
Wall pipe
Decorative tape
Vinyl tape
One set of following parts are necessary in istallation of this product.
Connection pipe assembly
Connection cord
Name
(2) Connect the connection cords firmly to the terminal
parts.
block. Imperfect installation may cause a fire.
(1) Match the terminal block numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric
using a screwdriver.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
(3) Using a round terminal fastener or pliers, securely clamp a round terminal to
(4) Position the round terminal wire, and replace and tighten the terminal screw
each stripped wire end.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insula-
tion to about 10 mm (3/8") to expose the strand wiring.
(3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw.
(4) Shape the loop wire properly, place it on the terminal board and tighten se-
curely with the terminal screw using a screwdriver.
CAUTION
(4) Securely earth the connection cord.
(5) Do not use the earth screw for an external connector.
Only use for interconnection between two units.
(3) Always fasten the outside covering of the connec-
tion cord with the cord clamp. (If the insulator is
chafed, electric leakage may occur.)
Terminal block
Wire
Wire
board
terminal
terminal
Terminal
Round
Round
special washer
Insulation
Screw with
special washer
Strip 10 mm (3/8")
Screw with
Strip 25 mm (1")
A. For solid core wiring (or F-cable)
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insula-
(2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
tion to about 25 mm (1") to expose the solid wire.
Loop
(1) Remove the cord clamp.
(2) Bend the end of the connection cord as shown in the figure.
Cord clamp
(There is a
terminal block
HOW TO CONNECT WIRING TO THE TERMINALS
Screw
Connection cord
A. Solid wire
indoor unit and fasten with a screw.
B. Strand wire
Round
terminal
inside.)
Connection cord
35 mm
25 mm
Insert the tab into the square hole of the
Screw
Square hole
Cord clamp
Ta b
INDOOR UNIT WIRING
(3) Connect the end of the connection cord fully into the terminal block.
(4) Fasten the connection cord with a cord clamp.
(3)
Bend the pipe with a radius of curvature of 150mm or over.
If the copper pipe is bend the pipe or pulled to often, it will become stiff.
Do not bend the pipes more than three times at one place.
valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.
BENDING PIPES
(1) When bending the pipe, be careful not to crush it.
(2) To prevent breaking of the pipe, avoid sharp bends.
(2) During installation, make sure that the refrigerant pipe is attached firmly
and cause a leakage of refrigerant.
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
FLARING
(1) Cut the connection pipe to the necessary length
(2) Hold the pipe downward so that cuttings will
(3) Insert the flare nut onto the pipe and flare
Insert the flare nut (always use the flare nut at-
tached 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.
When using the conventional flare tool, always
use an allowance adjustment gauge and secure
the A dimension shown in the table.
with a pipe cutter.
not enter the pipe and remove the burrs.
the pipe with a flaring tool.
Check if [L] is flared uniformly
Die
Pipe
A
(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
ø 12.7 mm (1/2”)
ø 6.35 mm (1/4”)
0 to 0.5
0 to 0.5
Pipe outside diameter
Pipe outside
diameter
R410A, clutch type
Flash tool for
CAUTION
Clutch type
Conventional (R22) flare tool
1.0 to 1.5
1.0 to 1.5
1.5 to 2.0
A (mm)
Wing nut type
1.5 to 2.0
and is not cracked or scratched.
Flare nut size and tightening torque
12.7 mm dia.
6.35 mm dia.
Flare nut
Diameter (mm)Torque (N.m)
264961
171418
(3) After matching the center of the flare surface and tightening the nut
tion set or procured at the site) to the wall pipe.
hand tight, tighten the nut to the specified tightening torque with a
torque wrench.
Indoor unit pipe
Torque
wrench
Connection pipe
Flare nut
Wrench (fixed)
To prevent gas leakage, coat the flare
surface with refrigerator oil.
CONNECTION
(1) Install the outdoor unit wall cap (supplied with the optional installa-
(2) Connect the outdoor unit and indoor unit piping.
CONNECTING THE PIPING
Tighten with two wrenches.
• Under low temperature environment (when outdoor tem-
water frozen.
perature under 0 °C), after cooling operation is executed,
water in the drain hose could be frozen.
Once drain water is frozen, the drain hose will be blocked
and water leakage may be resulted for indoor unit.
Drain hose
Insulation (Drain hose)
ture environment.
When installing indoor unit's drain hose outdoors, necessary
measure for frost protection should be taken to prevent drain
• Attach the Insulation (Drain hose) to the drain hose.
(3) After removing drain hose, be sure not to forget
(4)
(5) Prevent drain water frozen under low tempera-
mounting drain cap.
of piping.
Be sure to fix the drain hose with tape to the bottom
(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.
(1) In order to align the drain hose and drain cap, be
sure to insert securely and vertically. Incline inser-
tion will cause water leakage.
Interchange the drain cap and the drain hose.
the drain hose and pipe together with vinyl tape.
with decorative tape.
● Install the indoor unit piping in the direction of the wall hole and bind
● Install the piping so that the drain hose is at the bottom.
● Wrap the pipes of the indoor unit that are visible from the outside
[For Left rear piping, Left piping]
CAUTION
Insert the drain hose and drain cap into the drain port, mak-
ing sure that it comes in contact with the back of the drain
port, and then mount it. If the drain hose is not connected
properly, leaking will occur.
Indoor unit
drain hose
Drain cap
CAUTION
piping outlet cutting groove
with a hacksaw.
Remove the drain cap by pulling
at the projection at the end of
the cap with pliers, etc.
piping
(bottom)
For left outlet piping, cut off the
Right piping
Bottom
Indoor unit drain hose
Pipe (top)
Rear piping
Bind with vinyl tape
FORMING THE DRAIN HOSE AND PIPE
[Rear piping, Right piping, Bottom piping]
If the wall pipe is not used, the cord interconnecting
the indoor and outdoor units may touch metal and
cause electric leakage.
● Check that there is no rattle at the wall hook bracket.
the holes near the outer edge of the bracket.
the weight of an adult.
(2) Install the wall hook bracket so that it is strong enough to withstand
● Fasten the wall hook bracket to the wall with 6 or more screws through
(1) Install the wall hook bracket so that it is correctly positioned horizon-
INSTALLING THE WALL HOOK BRACKET
tally and vertically. If the wall hook bracket is tiled, water will drip to
the floor.
WARNING
Install the wall hook bracket horizontally and
perpendicularly.
Tapping screw
CAUTION
bracket
Weight
String
Wall hook
(size: large; quantity: 8)
Leveling method
Hang weight
from here.
Wall hook bracket
(6) For left piping and right piping and center piping, cut the hole a little
lower so that drain water will flow freely.
(Wall cap)
(Wall pipe)
(Inside) Wall (Outside)
(5) Cut the wall pipe to match the wall thickness, stick it into the wall cap,
When cutting the wall hole at the outside of the wall hook bracket, cut
the hole at a point of 10mm below.
inside end.
will occur.
fasten the cap with vinyl tape, and stick the pipe through the hole.
(The connection pipe is supplied in the installation set.)
Fasten with
vinyl tape
Lower
80 mm hole
5~10 mm
80 mm hole
10 mm or
over
Lower
(3) Cut the hole so that the outside end is lower (5 to 10 mm) than the
(4) Always align the center of the wall hole. If misaligned, water leakage
(1) Cut a 80 mm diameter hole in the wall at the position shown in the
(2) When cutting the wall hole at the inside of the wall hook bracket, cut
figure.
the hole to a point of intersection of center marks.
Wall hook bracket
Centering marks
INDOOR UNIT
CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING
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 120 °C. (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 insulation
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 20 °C).
(2) When the voltage is low and the air conditioner is difficult to start, contact the power company the voltage raised.
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 capacity.
(4) Use a circuit breaker and receptacle matched to the capacity of
220 V -10 % to 240 V +10 % range.
cle to supply power to the room air conditioner.
the air conditioner.
(1) The rated voltage of this product is 230 V AC 50 Hz.
(2) Before turning on the power, check if the voltage is within the
(3) Always use a special branch circuit and install a special recepta-
CAUTION
(5) Do not extend the power cord.
(6) Perform wiring work in accordance with standards so that the
(7) Install a leakage circuit breaker in accordance with the related
air conditioner can be operated safely and positively.
laws and regulations and electric company standards.
POWER
WARNING
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 with 2 way or 3 way valve open. This may cause abnormal pressure
in the refrigeration cycle that leads to breakage and even injury.
• 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
(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.
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.)
(3) Start the cooling operation or following forced cooling operation.
low-pressure valve slightly.
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.
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
(2) Close the valve stem of 2 way valve completely.
(3) Give the operating and installation manuals to the customer.
CUSTOMER GUIDANCE
Avoid places in direct sunlight.
Select a place that will not be affected by the heat from
a stove, etc.
Tapping
screw
(small)
Remote control
unit holder
paying careful attention to the following:
Remote control unit holder fixing
(2) Select the remote control unit holder selection site by
control unit holder.
• Install the remote control unit holder to a wall, pillar, etc. with the
tapping screw.
Explain the following to the customer in accordance with the operating manual:
(1) Starting and stopping method, operation switching, temperat-ure adjustment, timer, air flow switching, and other remote control unit operations.
(2) Air filter removal and cleaning, and how to use the air louvers.
Install the front panel and INTAKE GRILLE securely. If installation is imperfect, the front panel or INTAKE GRILLE may
(1) Check that the indoor unit correctly receives the signal
REMOTE CONTROL UNIT INSTALLATION
fall off and cause injury.
(2) Six screws is attached.
(3) The intake grille is attached.
THE FRONT PANEL INSTALLATION
(1) Firstly, fit the lower part of the front panel, and insert top and
bottom hooks. (Three top sides)
(4) The front panel is pulled to the front, raising the upper surface,
and a front panel is removed.
from the remote control unit, then install the remote
CAUTION
CAUTION
1. REMOTE CONTROL UNIT HOLDER INSTALLATION
• Install the remote control unit with a distance of 7 m between the re-
mote control unit and the photocell as the criteria. However, when
installing the remote control unit, check that it operates positively.
Indoor unit
Top holes (two sides)
Top hole (center)
Push
(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.
Screws (6 position)
take grille is removed.
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 in-
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.
● Bend the connection piping at the bend radius of 100 mm or more
[Installing the indoor unit]
● Hang the indoor unit from the hooks at the top of the wall hook bracket.
● Insert the spacer, etc. between the indoor unit and the wall hook
bracket and separate the bottom of the indoor unit from the wall.
Wall hook bracket
After hooking the indoor unit to the top hook, hook the fittings of the indoor unit
to the two bottom hooks while lowering the unit and pushing it against the wall.
Indoor unit
(Spacer)
Connection piping
Indoor unit
● After passing the indoor piping and drain hose through the wall hole,
hang the indoor unit on the hooks at the top and bottom of the wall
hook bracket.
Wall hook
bracket
●
For left piping and left rear piping, align the marks on the wall hook
bracket and shape the connection pipe.
and install no more than 35 mm from the wall.
Installation instruction on the back.
Push
[-] mark
Mounting shaft
Front panel
Bearing
Wall hook bracket
Front panel
Remote
control unit
2
).
2 Push
Remote control unit mounting
1 Set
Top hooks
(two sides)
Top hook (center)
Front panel
Front panel
Knob
Intake grille
Intake grille
(Fitting) Bottom hooks
Wall hook
bracket
Large piping
Small piping
Top hooks
Alignment marks
Refrigerant suitable for a piping length of 15 m is charged in the outdoor
unit at the factory.
When the piping is longer than 15 m, additional charging is necessary.
For the additional amount, see the table below.
Additional refrigerant
Pipe length
100 g
20 m
200 g
25 m
Additional charge
(If the stem of the 3-way valve is opened fully before the
charge hose is disconnected, it may be difficult to disconnect
the charge hose.)
9. Slowly loosen the valve stem of the 3-way valve. When the
compound pressure gauge reading reaches 0.1-0.2 MPa,
retighten the valve stem and disconnect the charge hose
from the 3-way valve charging port.
5. Operate the vacuum pump and start pump down.
8. At the end of pump down, close the low pressure side gauge of
the gauge manifold fully and stop the vacuum pump.
7. Pump down the system for at least 15 minutes, then check if the
compound pressure gauge reads -0.1 MPa (-76 cmHg, -1 bar).
pressure gauge goes from minus to zero.)
6. Slowly loosen the flare nut of the 3-way valve and check if air
enters, then retighten the flare nut.
(When the flare nut is loosened the operating sound of the
vacuum pump changes and the reading of the compound
4. Open the low pressure side valve of the gauge manifold fully.
3. Connect the gauge manifold charge hose to the charging port
of the 3-way valve (side with the projection for pushing in the
valve core).
fully.
2. Check that the stems of 2-way valve and 3-way valve are closed
not operate it during the following work.
1. Check if the piping connections are secure.
AIR PURGE
(2) When installing the outdoor unit where it may ex-
than 5°.
posed to strong wind, fasten it securely.
(1) Install the unit where it will not be tilted by more
(2) Tighten the tapping screws.
Always use a vacuum pump to purge the air.
Refrigerant for purging the air is not charged in the
outdoor unit at the factory.
Close the high pressure side valve of the gauge manifold fully and do
WARNING
OUTDOOR UNIT
OUTDOOR UNIT INSTALLATION
● Set the unit on a strong stand, such as one made of concrete blocks
● Do not set the unit directly on the ground because it will cause trou-
Connector cover removal
● Remove the tapping screws.
Installing the connector cover
(1) After inserting the two front hooks, then insert the rear hook.
to minimize shock and vibration.
ble.
Between 15 m and 25 m, when using a connection pipe other than
that in the table, charge additional refrigerant with 20g/1 m as the
criteria.
the units are further apart than this, correct op-
eration can not be guaranteed.
(1)
(2) The maximum length of the piping is 25 m. If
When adding refrigerant, add the refrigerant from
the charging port at the completion of work.
CAUTION
Blank
cap
Charging port cap
12.7mm(1/2in)
6.35mm(1/4in)
12.5 to 16 N•m (125 to 160 kgf•cm)
20 to 25 N•m (200 to 250 kgf•cm)
28 to 32 N•m (280 to 320 kgf•cm)
Charging port cap
Charging port
Blank cap
Tightening torque
Charge hose
Vacuum pump
hose
Valve stem
Charge
(closed)
Flare nut
Low pressure
side valve
High
pressure
side valve
3-way valve
2-way valve
(-76 cmHg
-1 bar)
L
O
HI
11. Firmly tighten the 2-way valve and 3-way valve blank cap and
the charging port cap.
Compound pressure gauge
-0.1 MPa
Gauge manifold
Pressure gauge
(1) Refrigerant must not be discharged into
10. Fully open the valve stems of the 2-way valve and 3-way valve
stops turning.)
using a hexagon wrench. (After the valve stem begins to turn,
turn it with a torque of less than 2.9 N•m (30 kgf•cm) until it
(2) After connecting the piping , check the joints for
atmosphere.
gas leakage with gas leak detector.
CAUTION
hooks
Tapping screw
Connector cover
● Perform test operation and check items 1 and 2 below.
● For the test operation method, refer to the operating manual.
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?
Transmitter section
Test run button
● 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.)
● 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.)
TEST RUNNING
Pipe
Wall
(Outdoors)
(Sealer putty)
● For left and left rear piping and center piping, wrap the area which accommodates the
● For left and left rear piping and center piping, bind the connection cord to the top of the
● For left and left rear piping and center piping, bundle the piping and drain hose to-
(2) Temporarily fasten the connection cord along the connection pipe with vinyl tape. (Wrap
(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
(5) Fasten the drain hose to the outside wall, etc.
there is no gap.
rear piping housing section with cloth tape.
pipe with vinyl tape.
gether by wrapping them with cloth tape over the range within which they fit into the
rear piping housing section.
to about 1/3 the width of the tape from the bottom of the pipe so that water does not enter.)
water and wind cannot blow in.
(Saddle)
(Outside wall cap)
(1) Insulate between pipes.
● For rear, right, and bottom piping, overlap the connection pipe heat insulation and
● For left and left rear piping and center piping, butt the connection pipe heat insulation
and indoor unit pipe heat insulation together and bind them with and vinyl tape so that
FINISHING
indoor unit pipe heat insulation and bind them with vinyl tape so that there is no gap.
(2) Connect the connection cords firmly to the terminal
parts.
block. Imperfect installation may cause a fire.
(1) Match the terminal block numbers and connection
cord colors with those of the indoor unit.
Erroneous wiring may cause burning of the electric
install.)
A
2cm10cm
within the A range of the arrows shown in
the figure.
(The connector cover becomes difficult to
The hole
Cord wiring
Run the connection cord and the power
supply cord to the rear of the outdoor unit
Inverter case
Foreside
Control box cover
Set screw
CAUTION
(4) Securely earth the connection cord and the power cord .
(5) Do not use the earth screw for an external connector.
Only use for interconnection between two units.
(3) Always fasten the outside covering of the connection
cord and the power supply cord with the cord clamp.
(If the insulator is chafed, electric leakage may occur.)
Earth screw Earth screw
Cord clamp
(3) Connect the end of the connection cord and
(4) Fasten the sheath with a cord clamp.
(5) Install the control box cover.
figure.
the power supply cord fully into the terminal
block.
Power supply cord
Connection cord
Cord clamp
Earth
screw
OUTDOOR UNIT WIRING
(1) Remove the outdoor unit control box cover.
(2) Bend the end of the cord as shown in the
Control box cover
P/N 9315342546-01
GOOD
Saddle
Lifted up
Wave End in water
Check the following:
Pipe
Drain hose
Drain hose
BAD
Drain hose
BAD BAD
Wall pipe
Connection cord
Connection
pipe
Left piping
Connection cord
Drain hose
Cloth tape
For connection from the left rear
Wrap with
cloth tape
Bind the pipes together so
that there is no gap.
Connection pipe
(heat insulation)
Pipe
Vinyl tape
Indoor unit pipe
(heat insullation)
Overlap the insulation
Connection cord
Power supply cord
12
Sheath
3
4
Connection cord
Outdoor unit terminal blockIndoor unit terminal block
12
3
LN
Power supply cord
35mm
30mm
30mm
35mm
Earth
screw
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