Fujitsu INDOOR UNIT Duct Type Installation Manual
PART NO. 9380441038
AIR CONDITIONER
INSTALLATION MANUAL
INDOOR UNIT (Duct Type)
For authorized service personnel only.
INSTALLATIONSANLEITUNG
INNENGERÄT (Für Luftkanalsysteme)
Nur für autorisiertes Personal.
MANUEL D'INSTALLATION
UNITÉ INTÉRIEURE (Type conduit)
Pour le personnel agréé uniquement.
MANUAL DE INSTALACIÓN
UNIDAD INTERIOR (Con conductos)
Solo para personal autorizado.
MANUALE D'INSTALLAZIONE
UNITÀ INTERNA (Tipo di condotto)
Ad uso esclusivo del personale autorizzato.
ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ
ΕΣΩΤΕΡΙΚΗ ΜΟΝΑΔΑ (Τύποςαγωγού)
Гια εξουσιοδοτημένο προσωπικό σέρβις.
MANUAL DE INSTALAÇÃO
UNIDADE INTERIOR (Tipo conduta)
Apenas para técnicos autorizados.
РУКОВОДСТВО ПО УСТАНОВКЕ
ВНУТРЕННИЙ МОДУЛЬ (Канального типа)
Для yпoлнoмoчeнного персонала.
KURULUM KILAVUZU
İÇ ÜNİTE (Oluk tipi)
Yetkili servis personeli içindir.
Português
EλληvIkά Italiano Español Français Deutsch English
Русский
Türkçe
En-1
SAFETY PRECAUTIONS1.
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 indoor unit in accordance
with this Installation Manual. An improperly installed unit can cause serious accidents
such as water leakage, electric shock, or 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
re.
If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant
comes in contact with a ame, it produces a toxic gas.
Installation work must be performed in accordance with national wiring standards by
authorized personnel only.
Do not touch the ns of the heat exchanger. Touching the heat exchanger ns could
result in damage to the ns or personal injury such as skin rupture.
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 qualied personnel with a capacity certicate for handling
refrigerant uids. Refer to regulation and laws in use on installation place.
The 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 opera-ting on all
wires with a distance between contact of 3 mm 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.
ABOUT THE UNIT2.
Precautions for using R410A refrigerant2. 1.
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 leak, make sure that it does not exceed the concentration limit.
If a refrigerant leak 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 leak occurs during operation, immediately vacate the premises and
thoroughly ventilate the area. If the refrigerant comes in contact with a ame, it
produces a toxic gas.
Special tool for R410A2. 2.
WARNING
To install a unit that uses R410A refrigerant, use dedicated tools and piping materials
that have been manufactured specically for R410A use. Because the pressure
of 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 re.
Tool name Changes
Gauge manifold
The pressure in the refrigerant system is extremely 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 to use a gauge manifold with a high
pressure display range of –0.1 to 5.3 MPa and a low
pressure display range of –0.1 to 3.8 MPa.
Charging hose
To increase pressure resistance, the hose material and
base size were changed.
(The charging port thread diameter for R410A is 1/2 UNF
20 threads per inch.)
Vacuum pump
A conventional vacuum pump can be used by installing a
vacuum pump adapter.
Be sure that the pump oil does not backow into the
system. Use one capable for vacuum suction of
–100.7 kPa (5 Torr, –755 mmHg).
Gas leakage detector Special gas leakage detector for R410A refrigerant.
INSTALLATION MANUAL
PART NO. 9380441038
INDOOR UNIT (Duct Type)
Contents
SAFETY PRECAUTIONS1. ……………………………………………………………… 1
ABOUT THE UNIT2. ………………………………………………………………………… 1
Precautions for using R410A refrigerant2.1. ………………………………………… 1
Special tool for R410A2.2. ……………………………………………………………… 1
Accessories2.3. ………………………………………………………………………… 2
Optional parts2.4. ……………………………………………………………………… 2
INSTALLATION WORK3. ………………………………………………………………… 2
Selecting an installation location3.1. ………………………………………………… 2
Installation dimension3.2. ……………………………………………………………… 2
Installation the unit3.3. ………………………………………………………………… 3
PIPE INSTALLATION4. …………………………………………………………………… 4
Selecting the pipe material4.1. …………………………………………………………4
Pipe requirement4.2. …………………………………………………………………… 4
Flare connection (pipe connection)4.3. ……………………………………………… 4
Installing heat insulation4.4. …………………………………………………………… 5
INSTALLING DRAIN PIPES5. ……………………………………………………………… 5
ELECTRICAL WIRING6. …………………………………………………………………… 6
Electrical requirement6.1. ……………………………………………………………… 6
Wiring method6.2. ………………………………………………………………………6
REMOTE CONTROLLER SETTING7. …………………………………………………… 7
Installing the remote controller7.1. …………………………………………………… 8
Setting the dip switches7.2. …………………………………………………………… 8
FUNCTION SETTING8. …………………………………………………………………… 8
Turning on the power8.1. ……………………………………………………………… 8
Setting method8.2. ……………………………………………………………………… 8
Function setting8.3. ……………………………………………………………………9
Setting the room temperature detection location8.4. …………………………… 10
TEST RUN9. ……………………………………………………………………………… 10
CHECK LIST10. …………………………………………………………………………… 10
SPECIAL INSTALLATION METHODS11. ……………………………………………… 10
Group control system11.1. …………………………………………………………… 10
Fan delay setting11.2. ………………………………………………………………… 11
Dual remote controllers11.3. ………………………………………………………… 11
OPTIONAL PARTS12. …………………………………………………………………… 11
External input and external output12.1. ……………………………………………… 11
I.R. receiver unit / Remote sensor12.2. ……………………………………………… 12
CUSTOMER GUIDANCE13. ……………………………………………………………… 12
ERROR CODES14. ……………………………………………………………………… 13
En-2
Accessories2. 3.
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 falling,
water leakage, electric shock, or 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.
Name and Shape Q’ty Description
Special nut A
(Large ange)
4
For suspending the indoor unit
from ceiling
Special nut A
(small ange)
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 (Large)
4 For xing the heat insulation
Cable tie (Medium)
4
For xing the remote controller
cable and connection cable
Cable tie (Small)
1
For xing the remote controller
cable
Remote controller
1 For Air conditioner operation
Screw
(Flush heads)
2
For installing indoor unit remote
controller
Remote controller cable
1
For connecting the remote
controller
Optional parts2. 4.
Parts name Model No. Summary
Wired remote controller UTY-RVN*M
For Air conditioner
operation
Wired remote controller UTY-RNN*M
For Air conditioner
operation
Simple remote controller UTY-RSN*M
For Air conditioner
operation
Remote sensor UTY-XSZX
New amenity space can
be offered by installing
the Remote sensor in the
remote controller
External control set UTD-ECS5A
Use to connect various
peripheral devices and air
conditioner PC board
INSTALLATION WORK3.
Especially, the installation place is very important for the split type air conditioner because
it is very difcult to move from place to place after the rst installation.
Selecting an installation location3. 1.
Decide the mounting position together with the customer as follows.
WARNING
Select installation locations that can properly support the weight of the indoor unit.
Install the units securely so that they do not topple or fall.
CAUTION
Do not install the indoor unit in the following areas:
Area with high salt content, such as at the seaside. •
It will deteriorate metal parts, causing the parts to fall or the unit to leak water.
Area 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 fall 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 bers or •
ammable dust, or volatile inammables such as paint thinner or gasoline. If gas
leaks and settles around the unit, it can cause a 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 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
control 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.)
Install the unit where ambient temperature does not reach 60°C or more.
Take a measure such as ventilation for an environment in which heat is retained.
If children under 10 years old may approach the unit, take preventive measures so that
they cannot reach the unit.
Take precautions to prevent the unit from falling.
Install the indoor unit on a place having a sufcient strength so that it withstands (1)
against the weight of the indoor unit.
The inlet and outlet ports should not be obstructed; the air should be able to blow all (2)
over the room.
Leave the space required to service the air conditioner.(3)
Install the unit where connection to the outdoor unit is easy.(4)
Install the unit where the connection pipe can be easily installed.(5)
Install the unit where the drain pipe can be easily installed.(6)
Install the unit where noise and vibrations are not amplied.(7)
Take servicing, etc., into consideration and leave the spaces. Also install the unit where (8)
the lter can be removed.
Do not install the unit where it will be exposed to direct sunlight. (9)
Installation dimension3. 2.
Installation by which service space is made on top of the unit 3. 2. 1.
(recommended)
Install the unit away from the ceiling by 350 mm or more.
350
or
more
2500 or more
(When no ceiling)
Service
space
Unit : mm
Service access
500 or more
Floor
En-3
Installing hangers3. 3. 2.
Suspend the indoor unit by referring to the following gures.
Inlet port
Outlet port
AIR
AIR AIR
1260
1192
526
586
Unit : mm
181
Hanging bolt M10
(Field supply)
Special nut A
(Accessories)
Washer
(Field supply)
Hanger
Special nut B
(Accessories)
CAUTION
Fasten the unit securely with special nuts A and B.
Leveling3. 3. 3.
Use the procedure in the following gure to adjust the levelness.
B A
Level meter
Safty drain port
(Front)
The side of the unit that holds the drain port A should be slightly lower than the opposite
side of the unit B. The slant should allow from 0 to 20 mm of difference between A and B.
B A
(Side)
Level meter
Main drain portSafty drain port
The side of the unit that holds the drain port A should be slightly lower than the opposite
side of the unit B. The slant should allow from 0 to 10 mm of difference between A and B.
Installation by which service is carried out from the bottom of the 3. 2. 2.
unit
20 or
more
Service
space
Unit : mm Service access
500 or more
(For maintenance)3. 2. 3.
Maintenance work of the control box is possible with the Service access of the (1)
measurement shown in the gure.
If maintenance work is to be done from the bottom side, the Service access needs to (2)
be larger than the outside dimension of the indoor unit.
If maintenance work is to be done from the top, keep the space of the more than (3)
450 mm between the indoor unit and ceiling.
800
or
more
500
or
more
30 or
more
500 or
more
200 or
more
Service access size of 3.2.1
Drain pan
Unit : mm
Service access size of 3.2.2
Installation the unit3. 3.
WARNING
Install the air conditioner in a location which can withstand a load of 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.
Carrying in and installation of the unit should be performed by a sufcient number
of people and with sufcient equipment that is adequate for the weight of the unit.
Performing such work by an insufcient number of people or with inadequate
equipment could result in dropping of the unit or personal injury.
CAUTION
Conrm the directions of the air intake and outlet before installing the unit.
The unit takes in air from the evaporator side, and expels it from the fan side.
For installation, refer to the technical data.
Conveyance method3. 3. 1.
Leave the packing materials on until the unit is at the installation site.•
Remove the packing hardware and dispose of it.•
Be careful not to dispose the accessories.•
Unit is packed upside down.
Fan holder (2 locations) Pull them out towards you.
En-4
Mounting the duct3. 3. 4.
Follow the procedure in the following gure to install the ducts.
351
19
14
30
304
49
1260
1062
106
152
921
Inlet port ange
*Spacing between ange and safety drain pan.
Outlet port ange
Unit : mm
CAUTION
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.
Set the external static pressure between 60 and 260Pa and set the appropriate static
pressure mode. (Refer to 8.3 Function setting)
If an intake duct is installed, take care not to damage the temperature sensor (the
temperature sensor is attached to the intake port ange).
Install the air inlet grille for air circulation. The correct temperature can not be
detected.
Unit
Outlet Grille
(Field supply)
Inlet Grille
(Field supply)
(Room)
Duct
(Field supply)
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.
PIPE INSTALLATION4.
CAUTION
Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with
refrigerant R410A models. Also, when storing the piping, securely seal the openings
by pinching, taping, etc.
While welding the pipes, be sure to blow dry nitrogen gas through them.
Selecting the pipe material4. 1.
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.
Pipe outside diameter [mm (in.)] Thickness [mm]
6.35 (1/4) 0.8
9.52 (3/8) 0.8
12.70 (1/2) 0.8
15.88 (5/8) 1.0
19.05 (3/4) 1.2
Pipe requirement4. 2.
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 specied, 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).
Flare connection (pipe connection)4. 3.
Flaring4. 3. 1.
Use special pipe cutter and are tool exclusive for R410A.•
Cut the connection pipe to the necessary length with a pipe cutter.(1)
Hold the pipe downward so that cuttings will not enter the pipe and remove any burrs.(2)
Insert the are nut (always use the are nut attached to the indoor and outdoor units (3)
respectively) onto the pipe and perform the are processing with a are tool. Use the
special R410A are tool, or the conventional are tool. Leakage of refrigerant may
result if other are nuts are used.
Protect the pipes by pinching them or with tape to prevent dust, dirt, or water from (4)
entering the pipes.
Check if [L] is ared uniformly
and is not cracked or scratched.
Pipe
Die
B
L
A
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 are tools to are R410A pipes, the dimension A should be
approximately 0.5 mm more than indicated in the table (for aring with R410A are tools) to
achieve the specied aring. Use a thickness gauge to measure the dimension A.
Pipe outside
diameter [mm (in.)]
Width across ats
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
Width across
ats
Loading...