Fujitsu AS*9LSACW Service Instructions Manual page 79

SPLIT TYPE ROOM AIR CONDITIONER
INSTALLATION MANUAL
(PART NO. 9313209018-01) AS*9/12LSBC
This air conditioner uses new refrigerant HFC (R410A).
The basic installation work procedures are the same as conventional refrigerant (R22) models.
However, pay careful attention to the following points:
(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.
(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 threads per inch.]
(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant
(R22) models. Also, when storing the piping ,securely seal the opening by pinching ,taping, etc.
(4) When charging the refrigerant, take into account the slight change in the composition of the
gas and liquid phases, and always charge from the liquid phase side whose composition is
stable.
Special tools for R410A
Tool name
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.
Gauge manifold
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.
Charge hose To increase pressure resistance, the hose material and base size were changed.
Vacuum pump A conventional vacuum pump can be used by installing a vacuum pump adapter.
Gas leakage detector Special gas leakage detector for HFC refrigerant R410A.
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 Table1.Never us copper pipes thinner than 0.8mm even
when it is available on the market.
(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,
etc.(Use the special R410A materials.)
(2) When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant(R410A)
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.
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
vibration.
(2) The inlet and outlet ports should not be obstructed : the air should
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
in (Fig. 2). Also install the unit where the filter can be removed.
2. OUTDOOR UNIT
(1) If possible, do not install the unit where it will be exposed to direct
sunlight. (If necessary, install a blind that does not interfere with
the air flow.)
(2) Do not install the unit where a strong wind blows or where it is very
dusty.
(3) Do not install the unit where people pass.
(4) Take you neighbors into consideration so that they are not disturbed
by air blowing into their windows or by noise.
(5) Provide the space shown in Fig. 2 so that the air flow is not blocked.
Also for efficient operation, leave open three of the four directions
front, rear, and both sides.
WARNING
Install at a place that can withstand the weight of the
indoor and outdoor units and install positively so that
the units will not topple or fall.
CAUTION
(1) Do not install where there is the danger of com-
bustible gas leakage.
(2) Do not install near heat sources.
(3) If children under 10 years old may approach the
unit, take preventive measures so that they can-
not reach the unit.
(4) Install the indoor unit on the wall where the height
from the floors more than 230 cm.
[Indoor unit piping direction]
The piping can be connected in the five directions indicated by 1,
2, 3, 4, and 5 in (Fig. 1). When the piping is connected in
direction 2 or 5, cut along the piping groove in the side of the
front cover with a hacksaw.
When connecting the piping in direction 3, cut a notch in the thin
wall at the front bottom of the front cover.
Fig. 1
(Rear)
2 Right
1 Rear outlet
outlet
4 Left rear
3 Bottom outlet
outlet
Contents of change
Table 1 Thicknesses of Annealed Copper Pipes
Nominal Outer diameter
diameter (mm)
1/4 6.35
3/8 9.52
WARNING
INSTALLATION DIAGRAM OF
INDOOR AND OUTDOOR UNITS
Fig. 2
[INDOOR UNIT]
5 cm or over
6 cm or over
150 cm or over
230 cm or over
Remote
control unit
Connection Cord
Conform to Type245 IEC57
[OUTDOOR UNIT]
60 cm or over
10 cm or over
20 cm or over
Drain hose
5 Left
Fig. 3
54 cm
outlet
For authorized service personnel only.
(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
this installation manual.
(3) Have installation work done by authorized service personnel only.
(4) Never cut the power cord, lengthen or shorten the cord, or change the plug.
(5) Also do not use an extension cord.
(6) Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the room air conditioner.
(7) Do not turn on the power until all installation work is complete.
G Be careful not to scratch the air conditioner when handling it.
G After installation, explain correct operation to the customer, using the operating manual.
G Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.
G The maximum length of the piping is 20 m. The maximum height difference of the piping is 15 m,
if the units are further apart than these, correct operation can not be guaranteed.
STANDARD ACCESSORIES
The following installation accessories are supplied.
Use them as required.
Name and Shape
Wall hook bracket
Remote
control
unit
Battery
Thickness (mm)
R410A [ref.] R22
0.80 0.80
0.80 0.80
Remote control
unit holder
Drain pipe
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-
take 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
Wall hook bracket
(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 pulls to the front, pushing [-] mark , and bottom hooks
9 cm or over (two position) is removed from wall hook bracket.
(4) The front panel bottom is pulled to the front, and bottom hooks
is removed indoor unit.
(5) The front panel is pulled to the front, raising the upper surface,
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, six bottom sides)
(Wall cap)
(2) Four screws is attached.
(3) The intake grille is attached.
Remote
control unit
holder
Tapping
screw
Indoor unit
(small)
Bottom hole
(six position)
10 cm or over
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.
25 cm or
over
Be sure that the top hole of the front
panel is hooked securely to the hook of
the base.
CUSTOMER GUIDANCE
Explain the following to the customer in ac-
cordance with the operating manual:
(1) Starting and stopping method, opera-
tion switching, temperature adjustment,
timer, air flow switching, and other re-
mote 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.
Outdoor unit bottom POWER
(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 220 V -10 % to 240 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 ca-
pacity of the air conditioner.
(5) Do not extend the power cord.
(6) Perform wiring work in accordance with standards 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 company
standards.
WARNING
One set of following parts are necessary in istallation of this product.
Q'ty Name and Shape Q'ty
Connection pipe assembly
Cloth tape
Connection cord
Wall pipe
1 1
Decorative tape
Vinyl tape
Wall cap
Tapping screw (big)
Saddle
Drain hose
Tapping screws
1 8
Sealant
ELECTRICAL REQUIREMENT
Tapping screw (small)
Always make the air conditioner power supply a special branch circuit
and provide a special switch and receptacle. Do not extend the power
2 2
cord.
Air cleaning filter
1 2
Air cleaning filter frame
1 2
Push
Bottom hooks
(six position)
Indoor unit
Front panel
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
(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?
WARNING
(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.
(2) When the voltage is low and the air conditioner is difficult to start,
contact the power company the voltage raised.
Name
Fig. 4
Intake grille
Intake grille
Mounting shaft
Bearing
Knob
Front panel
Screws
(4 position) Front panel
Front panel
[-] mark Push
Wall hook bracket
Top holes (two sides)
Top hook (center)
Top hole (center) Front panel
Top hooks
(two sides)
Fig. 5
Transmitter section
Test run button
CAUTION
Installation instruction on the back.