Fujitsu INDOOR UNIT (Duct Type) AIR CONDITIONER Installation Manual
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INSTALLATION MANUAL
For authorized service personnel only.
INSTALLATIONSANLEITUNG
Nur für autorisiertes Personal.
MANUEL D'INSTALLATION
Pour le personnel agréé uniquement.
MANUAL DE INSTALACIÓN
Solo para personal autorizado.
MANUALE D'INSTALLAZIONE
Ad uso esclusivo del personale autorizzato.
ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ
Για εξουσιοδοτημένο προσωπικό σέρβις.
MANUAL DE INSTALAÇÃO
Apenas para técnicos autorizados.
РУКОВОДСТВО ПО УСТАНОВКЕ
Для уполномоченного персонала.
KURULUM KILAVUZU
Yetkili servis personeli içindir.
PART NO. 9379127035-02
AIR CONDITIONER
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CAUTION
Read carefully all security information before use or install the air conditioner.
Do not attempt to install the air conditioner or a part of the air conditioner by yourself.
This unit must be installed by qualified personnel with a capacity certificate for handling
refrigerant fluids. Refer to regulation and laws in use on installation place.
Th
e installation must be carried out in compliance with regulations in force
in the place
of installation and the installation instructions of the manufacturer.
This unit is part of a set constituting an air conditioner. It must not be installed alone or
with non-authorized by the manufacturer.
Always use a separate power supply line protected by a circuit breaker operating on all
wires with a distance between contact of 3mm for this unit.
The unit must be correctly grounded and the supply line must be equipped with a
differential breaker in order to protect the persons.
The units are not explosion proof and therefore should not be installed in explosive
atmosphere.
Never touch electrical components immediately after the power supply has been turned
off. Electric shock may occur. After turning off the power, always wait 5 minutes before
touching electrical components.
This unit contains no user-serviceable parts. Always consult authorized service
personnel to repairs.
When moving, consult authorized service personnel for disconnection and installation of
the unit.
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they do
not play with the appliance.
2. ABOUT THE UNIT
2.1. Precautions for using the R410A refrigerant
WARNING
Do not introduce any substance other than the prescribed refrigerant into the
refrigeration cycle.
If air enters the refrigeration cycle, the pressure in the refrigeration cycle will become
abnormally high and cause the piping to rupture.
If there is a refrigerant leakage, make sure that it does not exceed the concentration
limit.
If a refrigerant leakage exceeds the concentration limit, it can lead to accidents such as
oxygen starvation.
Do not touch refrigerant that has leaked from the refrigerant pipe connections or other
area. Touching the refrigerant directly can cause frostbite.
If a refrigerant leakage occurs during operation, immediately vacate the premises and
thoroughly ventilate the area.
If the refrigerant comes in contact with a fl ame, it produces a toxic gas.
2.2. Special tool for R410A
WARNING
To install a unit that uses the R410A refrigerant, use dedicated tools and piping
materials that have been manufactured specifi cally for R410A use.
Because the pressure of the R410A refrigerant is approximately 1.6 times higher than
the R22, failure to use dedicated piping material or improper installation can cause
rupture or injury.
Furthermore, it can cause serious accidents such as water leakage, electric shock, or
fi re.
Tool name Contents of change
Gauge manifold
Pressure is huge 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 to use a gauge manifold with a high pressure
display range –0.1 to 5.3 MPa and a low pressure display range
–0.1 to 3.8 MPa.
Charging 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.
1. SAFETY PRECAUTIONS
• Be sure to read this Manual thoroughly before installation.
• The warnings and precautions indicated in this Manual contain important information
pertaining to your safety. Be sure to observe them.
• Hand this Manual, together with the Operating Manual to the customer.
Request the customer to keep them on hand for future use, such as for relocating or
repairing the unit.
WARNING
This mark indicates procedures which, if improperly performed,
might lead to the death or serious injury of the user.
CAUTION
This mark indicates procedures which, if improperly performed,
might possibly result in personal harm to the user, or damage to
property.
WARNING
Request your dealer or a professional installer to install the indoor unit in accordance
with this Installation Manual. An improperly installed unit can cause serious accidents
such as water leakage, electric shock, or fi re. If the indoor unit is installed in disregard
of the instructions in the Installation Manual, it will void the manufacturer’s warranty.
Do not turn ON the power until all work has been completed. Turning ON the power
before the work is completed can cause serious accidents such as electric shock or fi re
.
If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant
comes in contact with a fl ame, it produces a toxic gas.
Installation work must be performed in accordance with national wiring standards by
authorized personnel only.
Except for EMERGENCY, never turn off main as well as sub breaker of the indoor units
during operation. It will cause compressor failure as well as water leakage.
First, stop the indoor unit by operating the control unit, converter or external input
device and then cut the breaker.
Make sure to operate through the control unit, converter or external input device.
When the breaker is designed, locate it at a place where the users cannot start and
stop in the daily work.
Contents
1. SAFETY PRECAUTIONS ..........................................................................................1
2. ABOUT THE UNIT .....................................................................................................1
2.1. Precautions for using the R410A refrigerant .......................................................1
2.2. Special tool for R410A ........................................................................................ 1
2.3. Accessories ........................................................................................................ 2
2.4. Optional parts .....................................................................................................2
3. INSTALLATION WORK .............................................................................................2
3.1. Selecting an installation location ........................................................................2
3.2. Installation dimension .........................................................................................3
3.3. Installation the unit ..............................................................................................3
4.
PIPE INSTALLATION ................................................................................................4
4.1. Selecting the pipe material .................................................................................4
4.2. Pipe requirement ................................................................................................5
4.3. Flare connection (Pipe connection) ....................................................................5
4.4. Installing heat insulation .....................................................................................6
5. INSTALLING DRAIN HOSE .......................................................................................6
6. ELECTRICAL WIRING ..............................................................................................7
6.1. Wiring system diagram .......................................................................................7
6.2. Connection cable preparation .............................................................................8
6.3. Connection of wiring ...........................................................................................8
7. REMOTE CONTROLLER SETTING .........................................................................9
7.1. Installing the remote controller ...........................................................................9
7.2. Setting the DIP switches .....................................................................................9
8. FUNCTION SETTING..............................................................................................10
8.1. Turning on the power ........................................................................................10
8.2. Function setting ................................................................................................10
8.3. Static pressure characteristic ...........................................................................12
8.4. Special installation methods .............................................................................12
9. FRESH AIR INTAKE ................................................................................................13
10. TEST RUN ...............................................................................................................14
11. CHECK LIST ............................................................................................................14
12. OPTIONAL KIT INSTALLATION (OPTION) .............................................................14
13. CUSTOMER GUIDANCE ........................................................................................15
14. ERROR CODES ......................................................................................................15
INSTALLATION MANUAL
PART NO. 9379127035
INDOOR UNIT (Duct Type)
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2.3. Accessories
WARNING
For installation purposes, be sure to use the parts supplied by the manufacturer or
other prescribed parts.
The use of non-prescribed parts can cause serious accidents such as the unit to fall,
water leakage, electric shock, or fi re.
The following installation parts are furnished. Use them as required.
Keep the Installation Manual in a safe place and do not discard any other accessories
until the installation work has been completed.
Do not discard any accessories needed for installation until the installation work has
been completed.
Name and Shape Q’ty Description
Operating manual
1
Installation manual
1
(This book)
Hanger
4
For suspending the indoor unit
from ceiling
Drain hose insulation
1
Insulates the drain hose and
vinyl hose
Cable tie (large)
1
For fi xing the drain hose
Cable tie (small)
1
For remote controller and remote controller cable binding
Cable tie
2
For electrical wiring
(22,24 model)
Wire clamper
1
For electrical wiring
(22,24 model)
Remote controller
1
For air conditioner operation
Remote controller cable
(*1)
1
For connecting the remote
controller
Screw (M4 × 16)
2
For installing the remote
controller
Coupler heat
insulation (large)
1
For indoor side pipe joint (gas)
Coupler heat
insulation (small)
1
For indoor side pipe joint
(liquid)
Special nut A
(large fl ange)
4
For suspending the indoor unit
from ceiling
Special nut B
(small fl ange)
4
For suspending the indoor unit
from ceiling
(*1) Not supplied for ART series
2.4. Optional parts
Parts name Model No. Application
Wired remote controller UTY-RNN*M For air conditioner operation
Wired remote controller UTY-RVN*M For air conditioner operation
Simple remote controller UTY-RSN*M For air conditioner operation
Remote sensor unit UTY-XSZX Room temperature sensor
External connect kit UTD-ECS5A For control input/output port
Square fl ange UTD-SF045T
Round fl ange UTD-RF204
Long-life fi lter UTD-LF25NA
Drain pump unit
UTZ-PX1NBA
3. INSTALLATION WORK
3.1. Selecting an installation location
Especially, the installation place is very important for the split type air conditioner because it is very diffi cult to move from place to place after the fi rst installation.
WARNING
Select installation locations that can properly support the weight of the indoor. Install
the units securely so that they do not topple or fall.
CAUTION
Do not install the unit in the following areas:
• Area with high salt content, such as at the seaside.
It will deteriorate metal parts, causing the parts to fail or the unit to leak water.
• Area fi lled with mineral oil or containing a large amount of splashed oil or steam,
such as a kitchen.
It will deteriorate plastic parts, causing the parts to fail or the unit to leak water.
• Area that generates substances that adversely affect the equipment, such as
sulfuric gas, chlorine gas, acid, or alkali.
It will cause the copper pipes and brazed joints to corrode, which can cause
refrigerant leakage.
• Area that can cause combustible gas to leak, contains suspended carbon fi bers or
fl ammable dust, or volatile infl ammables such as paint thinner or gasoline.
If gas leaks and settles around the unit, it can cause a fi re.
• Area where animals may urinate on the unit or ammonia may be generated.
Do not use the unit for special purposes, such as storing food, raising animals, growing
plants, or preserving precision devices or art objects.
It can degrade the quality of the preserved or stored objects.
Do not install where there is the danger of combustible gas leakage.
Do not install the unit near a source of heat, steam, or fl ammable gas.
Install the unit where drainage does not cause any trouble.
Install the indoor unit, outdoor unit, power supply cable, transmission cable, and remote
controller cable at least 1 m away from a television or radio receivers. The purpose of
this is to prevent TV reception interference or radio noise.
(Even if they are installed more than 1 m apart, you could still receive noise under
some signal conditions.)
Take precautions to prevent the unit from falling.
Decide the mounting position with the customer as follows:
(1) Install the indoor unit in a location having suffi cient strength to support the weight of
the indoor unit.
(2) The inlet and outlet ports should not be obstructed; the air should be able to blow all
over the room.
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(3) Leave the space required to service the air conditioner.
(4) Locate where the air can be distributed evenly throughout the room by the unit.
(5) Install the unit where connection to the outdoor unit is easy.
(6) Install the unit where the connection pipe can be easily installed.
(7) Install the unit where the drain pipe can be easily installed.
(8) Install the unit where noise and vibration is not amplifi ed.
(9) Take servicing, etc., into consideration and leave the spaces. Also install the unit
where the fi lter can be removed.
(10) Providing as much space as possible between the indoor unit and the ceiling will
make work much easier.
(11) If installing in a place where its humidity exceeds 80%, use heat insulation to prevent
condensation.
3.2. Installation dimension
Provide the space around the unit as shown in the following fi gure.
Floor
Unit : mm
2500 or more
(When no
ceiling)
300
or more
150
or more
Maintenance hole dimensions:
It shall be possible to install and remove the control box.
Maintenance hole
Control box
Unit : mm
It shall be possible to install and remove the control box, fan units and fi lter.
Maintenance hole
Intake panel
Control box
Unit : mm
3.3. Installation the unit
WARNING
Install the air conditioner in a location which can withstand a load do at least 5 times the
weight of the main unit and which will not amplify sound or vibration. If the installation
location is not strong enough, the indoor unit may fall and cause injuries.
If the job is done with the panel frame only, there is a risk that the unit will come loose.
Please take care.
3.3.1. Installing the hangers
WARNING
When fastening the hangers, make the bolt positions uniform.
Hanging bolt installation diagram.
(Example)
(Top side)
(Left side)
Unit : mm
The distance of is adjustable according to the place of the hanging bolts.
(MAX : 550 mm, MIN : 410 mm)
Slide the unit in the arrow direction and fasten it.
Hanging bolt M10
(Obtained locally)
Special nut A
Washer
(Obtained locally)
Special nut B
Hanger
Bolt Strength [N·m (kgf·cm)] 9.81 to 14.71 (100 to 150)
CAUTION
Fasten the unit securely with special nuts A and B.
3.3.2. Leveling
Base vertical direction leveling on the unit (right and left).
(Left side)
Lever meter
AIR
AIR
Base horizontal direction leveling on top of the unit.
Drain hose
0-5 mm
Give a slight tilt to the side to which the drain hose is connected.
The tilt should be in the range of 0 mm to 5 mm.
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3.3.3. Intake duct connection
Follow the procedure in the following fi gure to the ducts.
Unit : mm
The air inlet duct can be changed by replacing the intake grille and fl ange.
For the bottom air intake, follow the procedure of 1→2 for installation.
(The factory setting is back air intake.)
1
2
CAUTION
When air is taken in from the bottom side, the operating sound of the product will easily
enter the room. Install the product and intake grilles where the affect of the operating
sound is small.
CAUTION
If an intake duct is installed, take care not to damage the temperature sensor.
Be sure to install the air inlet grille and the air outlet grille for air circulation. The correct
temperature cannot be detected.
Unit
Air Outlet Grille
Air Inlet Grille
(Room)
When connecting the duct, perform duct-insulation that is appropriate for the installing
environment.
Inappropriate insulation work may cause condensation on the surface of the insulating
material, and may lead condensation drip.
Grills must be fi xed so that man cannot touch indoor unit fan, and cannot be removed
by only hand operation without tool.
Be sure to install the air fi lter in the air inlet. If the air fi lter is not installed, the heat
exchanger may be clogged and its performance may decrease.
3.3.4. Outlet duct connection
Duct installation pattern ( CUT PART)
Square duct(1)
(2) Round duct outlet ×4
(This is the factory setting.)
When using as a square duct
(1) Cut the slit seam
with a cutter.
Turn up the insulation around the points to be cut according to the outlet port shape (2)
working points so that the insulation does not stick out at the
part.
Cut Cut
Cut
Cut
Cut with nippers and remove the sheet metal.(3)
Since there is a slit in the insulation, use radio pliers, tweezers, etc. to stretch the (4)
screw hole part used when installing the round fl ange and square fl ange when con-
necting the duct.
CAUTION
Check that duct work does not exceed the range of external static pressure of
equipment.
Make sure to insulate ducts to avoid the dew condensation.
Make sure to insulate between ducts and walls if metal ducts are used.
Please explain handling and washing methods of locally purchased materials to the
customer.
To prevent people from touching the parts inside the unit, be sure to install grilles on
the inlet and outlet ports. The grilles must be designed in such a way that cannot be
removed without tools.
When connecting the duct to the outlet port of the indoor unit, be sure to insulate the
outlet port and the installation screws to prevent water from leaking around the port.
4. PIPE INSTALLATION
CAUTION
Be careful that foreign matter (oil, water, etc.) does not enter the piping with refrigerant
R410A models. Also, when storing the piping, securely seal the openings by pinching,
taping, etc.
While brazing the pipes, be sure to purge with dry nitrogen gas.
4.1. Selecting the pipe material
CAUTION
Do not use existing pipes.
Use pipes that have clean external and internal sides without any contamination which
may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or water.
It is necessary to use seamless copper pipes.
Material : Phosphor deoxidized seamless copper pipes
It is desirable that the amount of residual oil is less than 40 mg/10 m.
Do not use copper pipes that have a collapsed, deformed, or discolored portion
(especially on the interior surface). Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.
Improper pipe selection will degrade performance. As an air conditioner using R410A
incurs pressure higher than when using conventional refrigerant, 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 those indicated in the table even if they are
available on the market.
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