Fujitsu AJYA36LALH, AJYA54LALH, AJHA36LALH, AJHA40LALH, AJHA45LALH Installation Manual
...
TM
AJYA36LALH
INSTALLATION MANUAL
OUTDOOR UNIT
For authorized service personnel only.
INSTALLATIONSANLEITUNG
AUSSENGERÄT
Nur für autorisiertes Fachpersonal.
MANUEL D’INSTALLATION
UNITÉ EXTÉRIEURE
Uniquement réservé aux techniciens agréés.
MANUAL DE INSTALACIÓN
UNIDAD EXTERIOR
Sólo para personal de servicio autorizado.
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AJYA40LALH
AJYA45LALH
AJYA54LALH
AJHA36LALH
AJHA40LALH
AJHA45LALH
AJHA54LALH
MANUALE D’INSTALLAZIONE
UNITÀ ESTERNA
A uso esclusivo del personale tecnico autorizzato.
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ΕΞΩΤΕΡΙΚΉ ΜΟΝΆΔΑ
Μόνο για εξουσιοδοτημένο τεχνικό προσωπικό.
MANUAL DE INSTALAÇÃO
UNIDADE EXTERIOR
Apenas para técnicos de assistência autorizados.
РУКОВОДСТВО ПО УСТАНОВКЕ
ВНЕШНИЙ МОДУЛЬ
Только для авторизованного обслуживающего персонала.
KURULUM KILAVUZU
DIŞ ÜNİTE
Yalnızca yetkili servis personeli için.
PART NO. 9380545026-02
INSTALLATION MANUAL
OUTDOOR UNIT
PART NO. 9380545026-02
Contents
1. SAFETY PRECAUTIONS ………………………………………………………………… 1
2. ABOUT THE UNIT …………………………………………………………………………2
2. 1. Precautions for using R410A refrigerant ………………………………………… 2
2. 2. Special tools for R410A ……………………………………………………………2
2. 3. Accessories …………………………………………………………………………2
2. 4. Optional parts ……………………………………………………………………… 3
3. INSTALLATION WORK ……………………………………………………………………3
3. 1. Selecting an installation location …………………………………………………3
3. 2. Drain processing …………………………………………………………………… 3
3. 3. Installation dimensions ……………………………………………………………3
3. 4. Transporting the unit ……………………………………………………………… 4
3. 5. Installation the unit ………………………………………………………………… 5
4. SYSTEM CONFIGURATION ………………………………………………………………5
4. 1. System confi guration ……………………………………………………………… 5
4. 2. Pipe selection ………………………………………………………………………5
4. 3. Protection of pipes …………………………………………………………………6
5. PIPE INSTALLATION ………………………………………………………………………6
5. 1. Brazing ………………………………………………………………………………6
5. 2. Indoor unit pipe connections ……………………………………………………… 6
5. 3. Opening the knockout hole ……………………………………………………… 7
5. 4. Pipe connection …………………………………………………………………… 7
6. ELECTRICAL WIRING ……………………………………………………………………8
6. 1. The precautions of electrical wiring ………………………………………………8
6. 2. Knockout hole ………………………………………………………………………9
6. 3. Selecting power supply cable and breaker ……………………………………… 9
6. 4. Transmission line …………………………………………………………………… 9
6. 5. Wiring method …………………………………………………………………… 11
6. 6. External input and external output …………………………………………… 12
7. FIELD SETTING ………………………………………………………………………… 13
7. 1. Field setting switches …………………………………………………………… 13
7. 2. DIP switch setting ……………………………………………………………… 13
7. 3. Rotary switch setting …………………………………………………………… 13
7. 4. Push button setting ……………………………………………………………… 14
7. 5. Address setting for signal amplifi ers …………………………………………… 16
7. 6. Indoor unit address setting ……………………………………………………… 16
7. 7. Resistance measurement of transmission cable
(Measure with breaker OFF) …………………………………………………… 17
8. PIPE INSTALLATION II ………………………………………………………………… 17
8. 1. Sealing test ……………………………………………………………………… 17
8. 2. Vacuum process ………………………………………………………………… 18
8. 3. Additional charging ……………………………………………………………… 18
8. 4. Installing insulation ……………………………………………………………… 19
8. 5. Filling with putty ………………………………………………………………… 19
9. TEST OPERATION ……………………………………………………………………… 19
9. 1. Indoor unit connection check …………………………………………………… 19
9. 2. Test run …………………………………………………………………………… 20
9. 3. Test run method ………………………………………………………………… 20
9. 4. Checklist ………………………………………………………………………… 22
10. LED Display ……………………………………………………………………………… 22
10. 1. Normal operation mode ………………………………………………………… 22
10. 2. Error display mode ……………………………………………………………… 22
11. INFORMATION ………………………………………………………………………… 22
SAFETY PRECAUTIONS1.
Be sure to read this Installation manual thoroughly before installation.•
The warnings and precautions indicated in this Installation manual contain important •
information pertaining to your safety. Be sure to observe them.
After installing the unit, perform a test run to make sure the unit operates normally. •
Then, explain to the customer how to operate and maintain the unit.
Please pass this Installation manual together with the Operating manual to the cus-•
tomer.
Please ask the customer to keep the Operating manual and Installation manual at
hand for future reference during the moving or repair of the main unit.
WARNING!
Consult the retail store or professional technicians to install the main unit according to
the Installation manual.
Improper installation will cause serious accidents such as refrigerant leakage, water
leakage, electric shock, and fi re.
Manufacturer's guarantee will be invalid when instructions in the Installation manual are
red during installation.
igno
For installation purposes, be sure to use the parts supplied by the manufacturer or
other prescribed parts.
Using non-specifi ed parts will cause serious accidents such as falling unit, refrigerant
leakage, water leakage, electric shock, and fi re.
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.
It will also cause serious accidents such as refrigerant leakage, water leakage, electric
shock, and fi re.
Do not use this equipment with air or any other unspecifi ed refrigerant in the refrigerant
lines.
Excess pressure can cause a rupture.
Be sure to install the unit as prescribed, so that it can withstand earthquakes and
typhoons or other strong winds.
Improper installation can cause the unit to topple or fall, or other accidents.
Ensure that the outdoor unit is securely installed at a place that can withstand the
weight of the unit.
Improper installation will cause injuries caused by falling unit.
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.
If a refrigerant leakage occurs during operation, immediately vacate the premises and
thoroughly ventilate the area.
If the refrigerant is exposed to fi re, it will create a hazardous gas.
Electrical work must be performed in accordance with this Installation manual by a
person certifi ed under the national or regional regulations. Be sure to use a dedicated
circuit for the unit.
An insuffi cient power supply circuit or improperly performed electrical work can cause
serious accidents such as electric shock or fi re.
For wiring, use the prescribed type of cables, connect them securely, making sure that
there are no external forces of the cables applied to the terminal connections.
Improperly connected or secured cables can cause serious accidents such as overheating the terminals, electric shock, or fi re.
Securely install the electrical box cover on the unit.
An improperly installed electrical box cover can cause serious accidents such as electric shock or fi re through exposure to dust or water.
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.
After the installation, make sure there is no refrigerant leakage.
If the refrigerant leaks into the room and becomes exposed to a source of fi re such as
a fan heater, stove, or burner, it will create a hazardous gas.
Use a wall hole pipe. Otherwise, it may cause a short circuit.
Do not place the outdoor unit near the handrail of the balcony.
Children may climb onto the outdoor unit, lean over the handrail and fall over.
Use only a specifi ed power cable. Poor connection, poor insulation, and exceeding the
allowable current will lead to electric shock and fi re.
Attach the connecting cables securely to the terminal. Or secure it fi rmly with a “wiring
suppressor”.
Loose connection will lead to malfunction, electric shock, and fi re.
Install a breaker (Included with earth leakage circuit breaker) to cut off all AC main current at the same time.
If you do not install a breaker, it may cause electric shock and fi re.
This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user.
En-1
During installation, make sure that the refrigerant pipe is attached fi rmly before you
run the compressor.
Do not operate the compressor under the condition of refrigerant piping not attached
properly with 2-way or 3-way valve open. This may cause abnormal pressure in the
refrigeration cycle that leads to rupture and even injury.
During the pump-down operation, make sure that the compressor is turned off before
you remove the refrigerant piping. Do not remove the connection pipe while the compressor is in operation with 2-way or 3-way valve open. This may cause abnormal
pressure in the refrigeration cycle that leads to breakage and even injury.
This mark indicates procedures which, if improperly per-
CAUTION!
This unit must be installed by qualifi ed personnel with a capacity certifi cate for han-
dling refrigerant fl 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.
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.
Obtain the distribution network operator's agreement about the power capacity of •
the power supply system, specifi cation of the cable and the harmonic current, and
etc. when you connect the outdoor unit with the power supply.
This unit must be connected to a power supply with impedance of 0.398 ohm and •
below. If the power supply does not satisfy this requirement, please consult the
power supplier.
This product is intended for professional use.•
Be sure to use a dedicated power circuit.
Never use a power supply shared by another appliance.
The units are not explosion proof and therefore should not be installed in explosive
atmosphere.
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 fall 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 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 containing equipment that generates electromagnetic interference. •
It will cause the control system to malfunction, preventing the unit from operating
normally.
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.
Avoid installing the unit at places where it will come into contact with animals’ urine •
or ammonia.
The units are not explosion proof and therefore should not be installed in explosive
atmosphere.
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.
Ground the unit. Do not connect the ground cable to a gas pipe, water pipe, lightning
rod, or a telephone ground cable. Improper grounding may cause electric shock.
Perform draining for the unit according to the Installation manual. Check that the
water is properly drained.
If the drain processing is improperly installed, water may drip down from the unit, wetting the furniture.
Do not touch the fi ns with bare hands.
Be sure not to start or stop the operation of air conditioning with power breaker. Otherwise, it may cause malfunction or water leakage.
When setting it up near the equipment that generates electromagnetic waves and
the equipment that generates the higher harmonics wave, be sure to take measures
against noise. Otherwise, it may cause malfunction or failure.
When energizing to the crankcase heater, please turn on the power 12 hours or earlier before operation begins. When the energizing time is short, it may cause failure.
Besides, please do not turn off power during the busy season.
Children should be monitored to ensure they do not play with the device.
This product is not intended to be used by people (including children) with physical,
sensory or mental disability, or persons lacking experience or knowledge unless they
have been given by the through a person responsible for their safety, supervision or
instruction concerning the use of the device.
formed, might possibly result in personal harm to the user,
or damage to property.
ABOUT THE UNIT2.
Precautions for using R410A refrigerant2. 1.
Pay careful attention to the following points:
Since the working pressure is 1.6 times higher than that of R22 models, some •
of the piping and installation and service tools are special. (See the table in the
SPECIAL TOOLS FOR R410A section.)
Especially, when replacing a conventional refrigerant (other than R410A) model
with a new refrigerant R410A model, always replace the conventional piping and
fl are nuts with the R410A piping and fl are nuts.
Models that use refrigerant R410A have a different charging port thread diameter •
to prevent erroneous charging with R22, R407C and for safety. Therefore, check
beforehand. [The charging port thread diameter for R410A is 1/2 UNF 20 threads
per inch.]
Be more careful than the installation of the refrigerant (other than R410A) models, •
not to enter foreign matters (oil, water, etc.) and other refrigerant into the piping.
Also, when storing the piping, securely seal the openings by pinching, taping, etc.
When charging the refrigerant, take into account the slight change in the composi-•
tion of the gas and liquid phases, and always charge from the liquid phase side
whose composition is stable.
Special tools for R410A2. 2.
Tool name Contents of change for R22 tool
Pressure is huge and cannot be measured with a conventional gauge. To prevent erroneous mixing of other
Gauge manifold
Charging hose
Vac uu m pu mp
Gas leakage detector Special gas leakage detector for HFC refrigerant R410A.
Accessories2. 3.
Use connecting parts as required.
Do not throw away the connecting parts until the installation has been complete.
Name and shape Q’ty Application
Specifi cations
manual
Installation
manual
Drain cap
Drain pipe
Cable tie
Reducer
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.
To increase pressure resistance, the hose material and
base size were changed.
A conventional vacuum pump can be used by installing a
vacuum pump adapter.
A conventional vacuum pump can be used by installing •
a vacuum pump adapter.
Be sure that the pump oil does not back fl ow into •
the system. Use one capable for vacuum suction of
-100.7kPa (5 Ton, -755mmHg).
—
1
(This book)
1
For outdoor unit drain piping work
3
For outdoor unit drain piping work
1
For binding power cable and
transmission cable
2
For connecting gas pipe
(For 54 model)
1
En-2
Optional parts2. 4.
Drain processing3. 2.
CAUTION
The following parts are optional parts specifi c to R410A refrigerant.
Do not use parts other than those listed below.
Separation tube kit2. 4. 1.
Separation tube uses the following parts.
Separation tube Total cooling capacity of indoor unit (kw)
UTP-AX090A ALL
Header2. 4. 2.
Header uses the following parts. A header is used for connecting the indoor units.
Header
3-6 Branches 3-8 Branches
UTR-H0906L UTR-H0908L ALL
Total cooling capacity of
indoor unit (kw)
INSTALLATION WORK3.
Please obtain the approval of the customer when selecting the location of installation
and installing the main unit.
Selecting an installation location3. 1.
WARNING
Install the unit in a location that can withstand its weight, and where it will not topple
or fall.
Calculate the proper refrigerant concentration if you will be installing it in an •
enclosed location.
Total amount of replenished
refrigerant in refrigerant facility (kg)
Capacity of smallest room where unit is installed (m
If the results of the calculation exceed the concentration limit, increase the room surface •
area or install a ventilation duct.
Refrigerant
<
concentration (kg/m
=
3
)
(0.3kg/m
3
)
CAUTION
Perform drain work in accordance with this Manual, and ensure that the drain water
is properly drained. If the drain work is not carried out correctly, water may drip down
from the unit, wetting the furniture.
When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe
and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe
may freeze in extremely cold weather.
As the drain water fl ows out of the outdoor unit during heating operation, install the •
drain pipe and connect it to a commercial 16mm hose.
When installing the drain pipe, plug all the holes other than the drain pipe mounting •
hole in the bottom of the outdoor unit with putty so there is no water leakage.
(Unit: mm)
Drain cap mounting hole ×3
Drain pipe mounting
hole ×1
227
305
321
341
50
278
438
622
3
)
Drain pipe mounting hole
Base
CAUTION
Please install the outdoor unit without slant. (within 3 degrees)
Install this unit in a location with good ventilation.
If the unit must be installed in an area within easy reach of the general public, install
as necessary a protective fence or the like to prevent their access.
Install the unit in an area that would not inconvenience your neighbors, as they could
be affected by the airfl ow coming out from the outlet, noise, or vibration.
If it must be installed in proximity to your neighbors, be sure to obtain their approval.
If the unit is installed in a cold region that is affected by snow accumulation, snow fall,
or freezing, take appropriate measures to protect it from those elements.
To ensure a stable operation, install inlet and outlet ducts.
Install the unit in an area that would not cause problems even if the drain water is
discharged from the unit. Otherwise, provide drainage that would not affect people or
objects.
Install the unit in an area that has no heat sources, vapors, or the risk of the leakage
of fl ammable gas in the vicinity.
Install the unit in an area that is away from the exhaust or vent ports that discharge
vapor, soot, dust, or debris.
Install the indoor unit, outdoor unit, power supply cable, transmission cable and
remote control cable at least 1 meter away from a television or radio.
The purpose of this is to prevent TV reception interference or radio noise. (Even if
they are installed more than 1 meter apart, you could still receive noise under some
signal conditions.)
Keep the length of the piping of the indoor and outdoor units within the allowable
range.
For maintenance purposes, do not bury the piping.
Drain pipe
Installation dimensions3. 3.
CAUTION
Provide suffi cient installation space, such as transportation route, maintenance space,
ventilation space, refrigerant piping space, and passageways.
Pay attention to the specifi cations of the installation space as shown in the fi gure. If
the unit is not installed according to specifi cations, it may cause short circuit or poor
performance. The unit may be prone to lapse into non-operation due to high pressure
protection.
When there is a wall in front of the unit, provide a space of 500mm or more as maintenance space.
When there is a wall at the right side of the unit, provide a space of 25mm or more as
maintenance space.
An outdoor temperature of 35 °C (DB) in air-conditioned operation is assumed for
the installation space in this item. If the outdoor temperature exceeds 35 °C (DB) and
the outdoor unit is operating at a load exceeding its rated ability, provide a larger inlet
space.
If you are installing more outdoor units than indicated here, please ensure suffi cient
space or consult your distributing agent as it may affect the performance due to short
circuit and other problems.
Consider the transportation route, installation space, maintenance space, and access,
and install the unit in a location with suffi cient space for the refrigerant piping.
Observe the installation space specifi cations that are shown in the fi gures.
Keep the same space at rear air intake.
Provide the same space for the air intake at the rear of the outdoor unit.
If the installation is not performed according to the specifi cations, it could cause a
short circuit and result in a lack of operating performance. As a result, the outdoor unit
might easily be stopped by high-pressure protection.
En-3
Air intake
Rear view
CAUTION
Installation methods not shown in the following examples are not recommended.
Performance may drop signifi cantly.
3.3.1. Single outdoor unit installation
When the upward area is open (Unit: mm)
When an obstruction is present also in the upward area (Unit: mm)
Obstacles at rear and above only•
1500
(1) Obstacles at rear only
150
(3) Obstacles at front only
1000 or more
(2) Obstacles at rear and sides only
200
200
(4) Obstacles at front and rear only
150
1000 or more
When an obstruction is present also in the upward area (Unit: mm)
(1) Obstacles at rear and above only
1000
300
Max. 500
(2) Obstacles at rear, sides, and above only
250
250
Max. 500
3.3.2. Multiple outdoor unit installation
Provide at least 25 mm of space between the outdoor units if multiple units are •
installed.
When routing the piping from the side of an outdoor unit, provide space for the piping.•
No more than 3 units must be installed side by side.•
When 3 units or more are arranged in a line, provide the space as shown in the
following example when an obstruction is present also in the upward area.
When the upward area is open (Unit: mm)
(1) Obstacles at rear only
(2) Obstacles at front only
300
500
1500
1500
500
Max. 300
3.3.3. Outdoor units installation in multi row
The following settings are not recommended in case of cooling by a low outside tem-*
perature.
(1) Single parallel unit arrangement
600
1000
(2) Multiple parallel unit arrangement
600
1500
(Unit: mm)
150
2000 or more
500
3000 or more
Transporting the unit3. 4.
WARNING
Do not touch the fi ns.
Otherwise, personal injury could result.
CAUTION
When carrying the unit, hold the handles on the right and left sides and be careful.
If the outdoor unit is carried from the bottom, hands or fi ngers may be pinched.
Carry slowly in the manner as shown on “Fig. B” holding the handles “Fig. A” in right •
and left sides. (Be careful not to touch with hands or objects.)
Be sure to hold the handles on the sides of the unit. Otherwise, the suction grilles on •
the sides of the unit may be deformed.
Fig. A
Fig. B
300
(3) Obstacles at front and rear only
500
1500 or more
1500 or more
Suction grille
Handle
Handle
Front view
Rear view
En-4
Installation the unit3. 5.
Please install the outdoor unit without slant. (within 3 degrees )•
Install 4 anchor bolts at the locations indicated with arrows in the fi gure.•
To reduce vibration, do not install the unit directly on the ground. Install it on a secure •
base (such as concrete blocks).
The foundation shall support the legs of the unit and have a width of 50mm or more.•
Depending on the installation conditions, the outdoor unit may spread its vibration •
during operation, which may cause noise and vibration. Therefore, attach damping
materials (such as damping pads) to the outdoor unit during installation.
Install the foundation, making sure that there is enough space for installing the con-•
nection pipes.
Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially •
available M10 bolts, nuts, and washers.)
The bolts should protrude 20mm. (Refer to the fi gure.)•
If overturning prevention is required, purchase the necessary commercially available •
items.
166
50
16
650
AIR
Do not install directly on the ground, this may result in
equipment failure.
Make sure the height of the base is 50 mm from the ground.
Otherwise, there is a risk that the drainage water will freeze
between the device and the surface, disabling drainage.
154
(Unit: mm)
50
20
410
Bolt
Nut
Base
CAUTION
In areas with heavy snowfall , where intake
and outlet of the outdoor unit can become
blocked by snow.
It is recommended that unit be installed
under a canopy or elevated on a high
50 mm
or over
stand.
Base
Failure to do so will result in poor heating
performance and/or premature failure of
equipment.
SYSTEM CONFIGURATION4.
System confi guration4. 1.
CAUTION
Always keep to the limit on the total amount of refrigerant. Exceeding the limit on the
total amount of refrigerant when charging will lead to malfunction.
Between outdoor unit and the farthest indoor unit•
<
a+f
=
Between the fi rst separation tube and the farthest indoor unit•
<
40m, p
f
=
Between the nearest indoor unit and the outdoor unit•
a+b+h
Between outdoor unit and the fi rst separation tube•
>
3m
a
=
Difference in height between outdoor units and indoor units (H1)•
30m: For the indoor unit stated below
30m: For the outdoor unit stated below
Difference in height between indoor units and indoor units•
<
15m, H3
H2
=
Maximum total equivalent pipe length•
a+f+h+j+l+n+p+q+s+u
Total refrigerant amount•
A Fig.
c
120m, a+p
<
40m
=
>
5m , a+c+q
=
b
p
<
120m
=
>
5m
=
<
15m
=
<
180m
=
<
15.7kg
=
Outdoor
unit
a
f
n
l
j
h
Indoor
Indoor
Indoor
Indoor
unit
unit
q
Indoor
unit
unit
Indoor
unit
u
s
unit
Indoor
unit
H3
Indoor
Indoor
unit
H1
unit
H2
Pipe selection4. 2.
CAUTION
This unit is designed specifi cally for use with the R410A refrigerant.
Pipes for R407C or R22 may not be used with this unit.
Do not use existing pipes.
Improper pipe selection will degrade performance.
Pipe size
(table B)
First separation
tube (optional)
Indoor
Indoor
unit
Indoor
unit
unit
A (Wall thickness and pipe material for each diameter)Tab le.
Outside Diameter
Wall Thicknes s
mm
(in.)
mm
*2
(in.)
Material
Please select the pipe size in accordance with local rules.
Allowable tensile stress*1.
Endurance pressure of the pipes 4.2MPa*2.
B (Diameter of piping used between outdoor unit and fi rst separation Tab le.
tubes or headers)
MODEL
A36LALH 11.2
AJ
A40LALH 12.1
AJ
AJ
A45LALH 14.0
A54LALH 15.5
AJ
>
=
Outdoor
unit cooling
capacity (kW)
33 (N/mm2)
Pipe Length: “a+f” or “a+p” of “4.1. SYSTEM CONFIGURATION”*3.
C (Diameter of piping used between separation tubes)Table.
Total cooling capac-
ity of indoor unit [kW]
4.4 to 11.1
11. 2 to 20. 1
For the installation method, please refer to the installation manuals for indoor *4.
unit, separation tubes or headers.
Outside diameter [mm(in.)]
Liquid pipe Gas pipe
9.52
(3/8)
9.52
(3/8)
If pipe diameter Table C>Table B , select pipe size from Table B.
“Total cooling capacity of indoor unit” is the total value for the cooling capacity of indoor
unit connected downstream.
Use a standard separation tube for pipe branching. Do not use a T tube as it does not
separate the refrigerant evenly.
D (Diameter of piping used between separation tube and indoor unit)Tab le.
Model code of
indoor unit
07 to 14 6.35 (1/4) 12.70 (1/2)
18 to 30 9.52 (3/8) 15.88 (5/8)
36 to 54 *5 9.52 (3/8) 19.05 (3/4)
If pipe diameter Table D > Table C , using of pipe size from Table C is preferable.*5.
(Use reducer to change the diameter of connection pipe.)
Separation tube
(optional)
Indoor
Indoor
unit
unit
6.35
(1/4)
(0.032)
0.8
9.52
(3/8)
0.8
(0.032)
JIS H3300 C1220T-O or equivalent
Indoor
unit
12.70
(1/2)
(0.032)
COPPER
Pipe size
(table C)
Pipe size
(table D)
0.8
*1
15.88
(5/8)
1.0
(0.039)
19.05
(3/4)
(0.047)
Diameter of piping [mm(in.)]
Between outdoor unit
and the farthest indoor
unit < 90m *3
Between outdoor unit
and the farthest indoor
unit ≥ 90m *3
Liquid pipe Gas pipe Liquid pipe Gas pipe
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
15.88
(5/8)
19.05
(3/4)
15.88
(5/8)
15.88
(5/8)
15.88
(5/8)
19.05
(3/4)
Separation
UTP-AX090A
tube *4
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
9.52
(3/8)
19.05
(3/4)
19.05
(3/4)
19.05
(3/4)
19.05
(3/4)
Header *4
UTR-H0906L
UTR-H0908L
Outside diameter [mm(in.)]
Liquid pipe Gas pipe
1.2
En-5
E (Indoor unit capacity comparison table - The indication of power is dif-Ta ble .
ferent depending on the model.)
Capacity [kW] Model code of indoor unit
2.2 07
2.8 09
3.6 12
4.5 14
5.6 18
7.1 24
9.0 30
11. 2 36
12.5 45
14.0 54
In the case of ARXB07LALH: equivalent to model code of indoor unit
Model code 07 → Capacity=2.2kW
Protection of pipes4. 3.
Indoor unit pipe connections5. 2.
CAUTION
For details, refer to the Installation Instruction Sheet of each part.
Separation tube
Horizontal
A
± 15°
B
Horizontal line
GOOD
A : Outdoor unit or Refrigerant branch kit
B : Indoor unit or Refrigerant branch kit
A
B
B
Vertic al
or
A
Location Working period
Outdoor
1 month or more Pinch pipes
Less than 1 month Pinch or tape pipes
Protection method
Indoor — Pinch or tape pipes
Protect the pipes to prevent the entry of moisture and dust.•
Especially pay attention when passing the pipes through a hole or connecting the end •
of a pipe to the outdoor unit.
PIPE INSTALLATION5.
Brazing5. 1.
CAUTION
If air or another type of refrigerant
enters the refrigeration cycle, the
internal pressure in the refrigeration cycle will become abnormally
high and prevent the unit from
exerting its full performance.
Fig.
Brazing area
Apply nitrogen gas while brazing the pipes.
Nitrogen gas pressure: 0.02 MPa (= pressure felt suffi ciently on the back of your
hand)
If a pipe is brazed without applying nitrogen gas, it will create an oxidation fi lm.
This can degrade performance or damage the parts in the unit (such as the compressor or valves).
Do not use fl ux to braze pipes. If the fl ux is the chlorine type, it will cause the pipes to
corrode.
n, if the fl ux contains fl uoride, it will affect the refrigerant piping system due to
In additio
deterioration of refrigerant oil.
For brazing material, use phosphor copper that does not require fl ux.
Pressure regulating valve
Cap
Nitrogen gas
PROHIBITED
Header
Gas pipe
Outdoor
unit side
Liquid pipe
Outdoor
unit side
C
D
GOOD
Horizontal line
A
H
1
Horizontal
line
A2
2
H
1
H1 = 0 to 10 mm
: 0° to 1°)
(α
1
: -10° to 10°
β
1
= 0 to 10 mm
H
2
(α2: 0° to 1°)
: -10° to 10°
β
2
PROHIBITED PROHIBITED
CAUTION
Do not connect a separation tube after a header.
Leave the distance 0.5 m or more for straight part to branch tube and
header.
Main pipe
Main pipe
0.5 m or more
To in do o r unit
0.5 m or more
Separation tube
or
Header
B
1
VIEW C
Vertic al
line
VIEW D
To in do o r
unit
Horizontal
line
B2
To in do o r unit
0.5 m or more
0.5 m or more
To in do o r unit
Separation tube
or
Header
To in do o r unit
To in do o r
unit
En-6
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