Fujitsu SPLIT TYPE ROOM AIR CONDITIONER Installation Manual

SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART NO. 9312853014-01)
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) mod-
els, 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 pinch-
ing, 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.
To increase pressure resistance, the hose material and base size were changed.
Charge hose
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 desir-
able 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). Other-
wise, the expansion 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 materi-
als.
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
under cover with a hacksaw.
When connecting the piping in direction 3, cut a notch in the thin
wall at the front bottom of the under cover.
Fig. 1
(Rear)
4 Left rear
2 Right
1 Rear outlet
outlet
3 Bottom 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]
12 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
60 cm or over
Fig. 3
50 cm
5 Left
outlet
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 speci-
fied 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 15 m. The maximum height difference of the piping is 8 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
Thickness (mm)
R410A [ref.] R22
0.80 0.80
0.80 0.80
Battery
FRONT PANEL REMOVAL AND INSTALLATION
The intake grille removal
(1) Open the intake grille.
(2) Pull down the knob.
(3) Open the intake grille , and lift the intake grille upward ,until the axle at the top of
the intake grille is removed.
The intake grille installation
(1) The fixing axle of the intake grille is installed on the front panel.
(2) Push the knob up to the position.
(3) Lay down the intake grille.
Wall hook
The front panel removal
bracket
(1) Turn the wind guide and remove two screws at two sides of air outlet.
12 cm or over (2) Take out the air outlet part of the front panel, then lift the whole front panel up to
remove it.
The front panel installation
(1) Firstly fit the lower part of the front panel to the air outlet part and insert its
lower edge into the slot of the under cover.
(2) Insert three hooks on the upper side of the front panel into the slot of bracket.
Wall cap (3) Turn the wind guide, tighten the screws, and then turn the wind guide back to its
origial position.
THE UNDER COVER REMOVAL AND INSTALATION
The under cover removal should be done after the panel has been removed beforehand, or the parts may
be damaged.
The under cover should be installed before the fixing of the panel, or it may result in poor installation.
The under cover removal
(1) While pressing the joint part between the right part of the under cover and the bracket, pull it out of
the slot.
(2) Hold two sides of the under cover and slide it to the left. Make sure its lower part getting out of the slot.
(3) Turn the right part of the under cover lower-left to separate the left slot of the under cover from the bracket.
The under cover installation
5 cm or over
(1) Hold two sides of the under cover and align it to the side of the bracket.Firstly match the left slot on
the under cover to the bracket.
(2) Make five slots on the under cover fit into the fixing plate of the body, then slide it to the right until the
left side of the under cover align to the bracket.
(3) Push the right part of the under cover inward to make the slot and bracket engaged with each other completely.
CAUTION
Install the front panel and intake grille securely.
If installation is imperfect, the front panel or
25 cm or
intake grille may fall off and cause injury.
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
accordance with the operating manual:
(1) Starting and stopping method, opera-
tion switching, temperature adjust-
ment, 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.
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 capacity of the air condi-
tioner.
(5) Do not extend the power cord.
(6) Perform wiring work in accordance with standards so that the air condi-
tioner can be operated safely and positively.
(7) Install a leakage circuit breaker in accordance with the related laws and regu-
lations 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
Drain pipe
(including drain packing)
Connection cord (3-conductor)
(Reverse cycle type only)
Wall pipe
1 1 Decorative tape
Vinyl tape
Wall cap
Saddle
Drain hose
Tapping screws
Cloth tape
Sealant
1 1

ELECTRICAL REQUIREMENT

Always make the air conditioner power supply a special branch circuit
and provide a special switch and receptacle. Do not extend the power
cord.
Tapping screw
2 8
Intake grille
Intake grille
Lift up
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.
NOTE:
These equipment shall be connected to a suitable mains network with a main
impedance less than the following: 0. 424Ω
The product is intended for use only in premises having a service current capacity
per phase,supplied from a distribution network having a nominal voltage of 230 V, and
instruct the user to determine in consulation with the supply authority, if necessary, that
the service current capacity at the interface point is sufficient for the equipment.
Name
Grill
Fixing axle
Knob
Fixing axle
Mounting shaft
Grill
Fixing axle
Knob
Knob
Fixing screw (2 position)
Turning direction
Font panel
Before turning
Top hole Bracket After turning
Turning wind
guide
Fig. 4
Top hook
Under cover
Fig. 5
Fig. 6
Transmitter
section
Test run
button
CAUTION
100A