Fujitsu 9379123037-02 Installation Insrtuctions
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.
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MANUAL DE INSTALAÇÃO
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KURULUM KILAVUZU
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AIR CONDITIONER
PART NO. 9379123037-02
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CAUTION!
This mark indicates procedures which, if improperly performed,
might possibly result in personal harm to the user, or damage to
property.
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.
• Request your dealer or a professional installer to install the unit in accordance with
this Manual.
An improperly installed unit can cause serious accidents such as water leakage,
electric shock, or fi re.
If the 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 .......................................................................................... 2
2. ABOUT THE UNIT ..................................................................................................... 2
2.1. Precautions for using the R410A refrigerant .......................................................2
2.2. Special tool for R410A ........................................................................................ 2
2.3. Accessories ........................................................................................................3
2.4. Optional parts .....................................................................................................3
3. INSTALLATION WORK .............................................................................................3
3.1. Selecting an installation location ........................................................................3
3.2. Installation dimension .........................................................................................3
3.3. Installation the unit ..............................................................................................4
4.
PIPE INSTALLATION ................................................................................................5
4.1. Selecting the pipe material .................................................................................5
4.2. Pipe requirement ................................................................................................5
4.3. Flare connection (Pipe connection) ....................................................................5
4.4. Installing heat insulation .....................................................................................6
5. INSTALLING DRAIN PIPES ...................................................................................... 6
5.1. Installing drain pipes (Ceiling concealed type) ...................................................6
6. ELECTRICAL WIRING .............................................................................................. 7
6.1. Wiring system diagram .......................................................................................8
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. Group control system .......................................................................................12
8.4. Dual remote controllers ....................................................................................12
9. TEST RUN ............................................................................................................... 13
10. CHECK LIST ............................................................................................................ 13
11. OPTIONAL KIT INSTALLATION (OPTION) ............................................................. 13
12. CUSTOMER GUIDANCE ........................................................................................13
13. ERROR CODES ......................................................................................................14
INSTALLATION MANUAL
PART NO. 9379123037-02
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 Application
Operating Manual
1
Installation Manual
1
(This book)
Special nut A
(Large flange)
4
For suspending the indoor unit from
ceiling
Special nut B
(Small flange)
4
Coupler heat insulation (Large)
1
For indoor side pipe joint
(Gas pipe)
Coupler heat insulation (Small)
1
For indoor side pipe joint
(Liquid pipe)
Cable tie (Small)
1
For fixing the remote controller
cable
Remote controller
1
Screw
(M4 × 16)
2
For installing indoor unit remote
controller
Remote controller cable
1
For connecting the remote controller
2.4. Optional parts
Parts name Model No. Application
Simple remote controller UTY-RSN*M For air conditioner operation
Wired remote controller UTY-RNN*M For air conditioner operation
Remote sensor unit UTY-XSZX Room temperature sensor
External connect kit UTD-ECS5A For control input/output port
Long life fi lter UTD-LF60KA
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.)
• 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.
(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.
3.2. Installation dimension
Install at least 20mm from the ceiling.
2500 or more
(When no
ceiling)
Floor
(Service space)
Unit : mm
450
20
or more
(For maintenance)
(1) Maintenance work of the control box is possible with the maintenance hole of the
measurement shown in the fi gure.
(2) If maintenance work is to be done from the bottom side, the maintenance hole needs
to be larger than the outside dimension of the indoor unit.
(3) If maintenance work is to be done from the top, keep the space of the more than
500 mm between the indoor unit and ceiling.
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450
500
500
Control box
Maintenannce hole
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.
CAUTION
• For installation, refer to the technical data.
RECOMMENDED RANGE OF
EXTERNAL STATIC PRESSURE [Pa]
100 - 250
3.3.1. Installing the hangers
Hanging bolt installation diagram
460
155
585
500
85
Unit : mm
AIR AIR
AIR
1,080
1,000
1,050
Hanging bolt M10
(Obtained locally)
Washer
(Obtained
locally)
Special nut A
Hanger
Special nut B
CAUTION
• Fasten the unit securely with special nuts A and B.
3.3.2. Leveling
Use the procedure in the following fi gure to adjust the levelness.
B
A
Level meter
The side A of the unit with the drain port should be slightly lower than the opposite side
B of the unit. The height difference between sides A and B should be from 0 to 20mm.
3.3.3. Mounting the duct
Follow the procedure in the following fi gure to install the ducts.
865
850
26
295
14
325
14
27
Intake port fl ange
Outlet port fl ange
Unit : mm
Spacing between fl ange and drain pan.
CAUTION
• If an intake duct is installed, take care not to damage the temperature sensor (the
temperature sensor is attached to the intake port fl ange).
• Be sure to install the air inlet grille and the air outlet grille for air circulation. The
correct temperature cannot be detected. Grills must be installed so that man cannot
touch unit fan, and cannot be removed by only hand operation with tool.
Air Inlet Grille
Air Outlet Grille
(Room)
Unit
• 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.
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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.
Thicknesses of Annealed Copper Pipes (R410A)
Pipe outside diameter [mm (in.)] Thickness [mm]
6.35 (1/4) 0.80
9.52 (3/8) 0.80
12.70 (1/2) 0.80
15.88 (5/8) 1.00
19.05 (3/4) 1.20
4.2. Pipe requirement
CAUTION
• Refer to the Installation Manual of the outdoor unit for description of the length of
connecting pipe or for difference of its elevation.
Diameter [mm (in.)]
Liquid
9.52 (3/8)
Gas
15.88 (5/8)
• Use pipe with water-resistant heat insulation.
CAUTION
• 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 specifi ed, 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).
4.3. Flare connection (Pipe connection)
WARNING
• Tighten the fl are nuts with a torque wrench using the specifi ed tightening method.
Otherwise, the fl are nuts could break after a prolonged period, causing refrigerant to
leak and generate a hazardous gas if the refrigerant comes into contact with a fl ame.
4.3.1. Flaring
• Use special pipe cutter and fl are tool exclusive for R410A.
(1) Cut the connection pipe to the necessary length with a pipe cutter.
(2) Hold the pipe downward so that cuttings will not enter the pipe and remove any
burrs.
(3) Insert the fl are nut (always use the fl are nut attached to the indoor and outdoor
units respectively) onto the pipe and perform the fl are processing with a fl are tool.
Use the special R410A fl are tool, or the conventional fl are tool. Leakage of refriger-
ant may result if other fl are nuts are used.
(4) Protect the pipes by pinching them or with tape to prevent dust, dirt, or water from
entering the pipes.
L
Die
Pipe
A
B
Check if [L] is fl ared uniformly
and is not cracked or scratched.
Pipe outside diameter
[mm (in.)]
Dimension A [mm]
Dimension B
-00.4
[mm]
Flare tool for R410A,
clutch type
6.35 (1/4)
0 to 0.5
9.1
9.52 (3/8) 13.2
12.70 (1/2) 16.6
15.88 (5/8) 19.7
19.05 (3/4) 24.0
When using conventional fl are tools to fl are R410A pipes, the dimension A should be ap-
proximately 0.5 mm more than indicated in the table (for fl aring with R410A fl are tools)
to achieve the specifi ed fl aring. Use a thickness gauge to measure the dimension A.
Width across
fl ats
Pipe outside
diameter [mm (in.)]
Width across flats
of Flare nut [mm]
6.35 (1/4) 17
9.52 (3/8) 22
12.70 (1/2) 26
15.88 (5/8) 29
19.05 (3/4) 36
4.3.2. Bending pipes
•
If pipes are shaped by hand, be careful not to collapse them.
•
Do not bend the pipes in an angle more than 90°.
•
When pipes are repeatedly bend or stretched, the material will harden, making it
diffi cult to bend or stretch them any more.
•
Do not bend or stretch the pipes more than 3 times.
CAUTION
• To prevent breaking of the pipe, avoid sharp bends.
• If the pipe is bent repeatedly at the same place, it will break.
4.3.3. Pipe connection
CAUTION
• Be sure to install the pipe against the port on the indoor unit correctly. If the centering
is improper, the fl are nut cannot tighten smoothly. If the fl are nut is forced to turn, the
threads will be damaged.
• Do not remove the flare nut from the indoor unit pipe until immediately before
connecting the connection pipe.
• Do not use mineral oil on fl ared part. Prevent mineral oil from getting into the system
as this would reduce the lifetime of the units.
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