Page 1
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.
EnglishDeutschFrançaisEspañolItalianoEλληvIkάPortuguêsРусскийTürkçe
AJYA40LALH
AJYA45LALH
AJYA54LALH
AJHA36LALH
AJHA40LALH
AJHA45LALH
AJHA54LALH
MANUALE D’INSTALLAZIONE
UNITÀ ESTERNA
A uso esclusivo del personale tecnico autorizzato.
ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ
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
Page 2
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
Page 3
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
Page 4
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
Page 5
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
Page 6
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
Page 7
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
Page 8
Opening the knockout hole5. 3.
Pipe connection5. 4.
CAUTION
Be careful not to deform or scratch the panel while opening the knockout holes.
To protect the piping insulation after opening a knockout hole, remove any burrs
from the edge of the hole. It is recommended to apply rust prevention paint to the
edge of the hole.
Pipes can be connected from 4 directions, front, lateral side, rear side and bottom. •
(Fig. A)
When connecting at the bottom, remove the service panel and piping cover on the •
front of the outdoor unit, and open the knockout hole provided at the bottom corner of
the piping outlet.
It can be installed as shown on “Fig. B” cutting out the 2 slits as indicated on “Fig. C”. •
(When cutting slits, use a steel saw.)
Fig. A
Service panel
Fig. B
Fig. C
CAUTION
Do not use mineral oil on a fl ared part. Prevent mineral oil from getting into the system
as this would reduce the lifetime of the units.
While brazing the pipes, be sure to blow dry nitrogen gas through them.
The maximum lengths of this product are shown in the table. If the units are further
apart than this, correct operation cannot be guaranteed.
Flaring5. 4. 1.
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 the 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.
Leakage of refrigerant 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.
Check if [L] is fl ared uniformly
and is not cracked or scratched.
Die
L
Pipe outside
diameter [mm (in.)]
6.35 (1/4)
9.52 (3/8) 13.2
12.70 (1/2) 16.6
15.88 (5/8) 19.7
19.05 (3/4) 24.0
Dimension A (mm)
Flare tool for R410A,
clutch type
0 to 0.5
A
Pipe
Dimension B
[mm]
9.1
B
0
- 0.4
Slit
Front
connection
Slit
Lateral
connection
Bottom
connection
Bottom
connection
Rear
connection
When using conventional fl are tools to fl are R410A pipes, the dimension A should •
be approximately 0.5mm 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.)]
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 fl ats
of Flare nut
[mm]
Bending pipes5. 4. 2.
CAUTION
To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of
curvature of 100mm or more.
If the pipe is bent repeatedly at the same place, it will break.
If pipes are shaped by hand, be careful not to collapse them.•
Do not bend the pipes at an angle of more than 90°.•
When pipes are repeatedly bent or stretched, the material will harden, making it dif-•
fi cult to bend or stretch them any more.
Do not bend or stretch the pipes more than 3 times.•
En-7
Page 9
Pipe connection5. 4. 3.
CAUTION
Be sure to install the pipe against the port on the indoor unit and the outdoor unit correctly. If the centering is improper, the fl are nut cannot be tightened smoothly.
If the fl are nut is forced to turn, the threads will be damaged.
Do not remove the fl are nut from the outdoor unit pipe until immediately before connect-
ing the connection pipe.
After installing the piping, make sure that the connection pipes do not touch the
compressor or outer panel. If the pipes touch the compressor or outer panel, they will
vibrate and produce noise.
(1) Detach the caps and plugs from the pipes.
(2)
Center the pipe against the port on the outdoor unit, and then turn the fl are nut by hand.
(3) Tighten the fl are nut of the connection pipe at the outdoor unit valve connector.
(4) After tightening the fl are nut by hand, use a torque wrench to fully tighten it.
3-way valve (Liquid)
3-way valve
(Gas)
Handling precautions for the valves5. 4. 4.
Mounted part of Blank cap is sealed for protection.•
Fasten blank cap tightly after opening valves.•
Operating the valves
Use a hexagon wrench (size 4mm).•
Opening (1) Insert the hexagon wrench into the valve shaft, and turn it •
counterclockwise.
(2) Stop turning when the valve shaft can no longer be turned.
(Open position)
Closing (1) Insert the hexagon wrench into the valve shaft, and turn it •
clockwise.
(2) Stop turning when the valve shaft can no longer be turned.
(Closed position)
Opening direction
Opening direction
Hexagon wrench
Seal (blank cap
installation portion)
Flare nut
Connection pipe
(Liquid)
Flare nut
Connection
pipe (Gas)
CAUTION
Hold the torque wrench at its grip, keeping it in a right angle with the pipe, in order to
tighten the fl are nut correctly.
Outer panel may be distorted if fastened only with a wrench. Be sure to fi x the el-•
ementary part with a holding wrench (spanner) and fasten with a torque wrench (refer
to below diagram). Do not apply force to the blank cap of the valve or hang a wrench,
etc., on the cap. If blank cap is broken, it may cause leakage of refrig
In the case of AJ*A54LALH
It is necessary to change a connection pipe diameter by using Reducer.•
(1) Reducer must be brazed in the outside of the outdoor unit.
(2) Distance between 3-way-valve and reducer ≤ 1m
(3) The part of Reducer do insulation processing after brazing.
Connection pipe (Gas)
(Pipe outside dia.:19.05mm (3/4 in.))
Blank cap
Holding
wrench
Flare nut
[mm (in.)]
6.35 (1/4) dia. 16 to 18 (160 to 180)
9.52 (3/8) dia. 32 to 42 (320 to 420)
12.70 (1/2) dia. 49 to 61 (490 to 610)
15.88 (5/8) dia. 63 to 75 (630 to 750)
19.05 (3/4) dia. 90 to 110 (900 to 1100)
Brazing
1m or less
Flare nut
Torque wrench
Torque wrench
Tightening torque
[N·m (kgf·cm)]
erant.
90°
Liquid pipe
Gas pipe
ELECTRICAL WIRING6.
The precautions of electrical wiring6. 1.
WARNING
Wiring connections must be performed by a qualifi ed person in accordance with
specifi cations.
The rated supply of this product is 50Hz, 230V of 1-phase, 2-cable. Use a voltage
within the range of 198-264V.
Before connecting the cables, make sure the power supply is OFF.
Select a breaker (Included with earth leakage circuit breaker) of appropriate capacity
and install one at every power supply of an outdoor unit. Wrong selection of breakers
or transition wiring will lead to electric shock and fi re.
Do not connect AC power supply to the transmission line terminal board.
Improper wiring can damage the entire system.
Install a breaker (Included with earth leakage circuit breaker) in accordance with the
related laws and regulations.
Connect the connector cord securely to the terminal.
Faulty installation can cause a fi re.
Make sure to secure the insulation portion of the connector cable with the cord clamp.
A damaged insulation can cause a short circuit.
N
ever install a power factor improvement condenser. Instead of improving the power
or, the condenser may overheat.
fact
Before servicing the unit, turn the power supply switch OFF. Then, do not touch electric parts for 10 minutes due to the risk of electric shock.
Make sure to perform grounding work. Improper grounding work can cause electric
shocks.
Always use a separate power supply line protected by a circuit breaker operating on
all cables with a distance between contact of 3mm for this unit.
Do not modify power cable, use extension cable or branch wiring. Improper use may
cause electric shock or fi re by poor connection, insuffi cient insulation or over current.
Use crimp-type terminals and tighten the terminal screws to the specifi ed torques,
otherwise, abnormal overheating may be produced and possibly cause serious damage inside the unit.
Securely install the electrical box cover on the unit. An improperly installed service
panel can cause serious accidents such as electric shock or fi re through exposure to
dust or water.
Reducer
(accessory)
Connection pipe (Gas)
(Pipe outside dia.:15.88mm (5/8 in.))
Example. Case of front connection
En-8
Page 10
CAUTION
The
primary power supply capacity is for the air conditioner itself, and does not include
the concurr
Do not use crossover power supply wiring for the outdoor unit.
If the electrical power is inadequate, contact your electric power company.
Install a breaker (Included with earth leakage circuit breaker) in a location that is not
exposed to high temperatures.
I
breaker cuts out may decrease.
Use a breaker (Included with earth leakage circuit breaker) that is capable of handling
high frequencies. Be
earth leakage circuit breake
itself.
When the electrical switchboard is installed outdoors, place it under lock and key so
that it is not easily accessible.
Never bundle the power supply cable and transmission cable, remote control cable
together. Separate these cable by 50 mm or more. Bundling these cables together will
cause miss operation or breakdown.
Always keep to the maximum length of the transmission cable. Exceeding the maximum length may lead to erroneous operation.
The static electricity that is charged to the human body can damage the control PC
board when handling the control PC board for address setting, etc.
Please keep caution to the following points.
Provide the grounding of Indoor unit, Outdoor unit and Option equipment.
Cut off the power supply (breaker).
Touch the metal section (such as the unpainted control box section) of the indoor or
outdoor unit for more than 10 seconds. Discharge the static electricity in your body.
Never touch the component terminal or pattern on the PC board.
ent use of other devices.
f the temperature surrounding the breaker is too high, the amp
cause the outdoor unit is inverter controlled, a high-frequency
r is necessary to prevent a malfunction of the breaker
erage at which the
Knockout hole6. 2.
CAUTION
Be careful not to deform or scratch the panel while opening the knockout holes.
After opening the knockout hole, remove the burr on the edges to prevent snapping
of cables.
It is recommended to apply rust proof paint on the edges to prevent rust.
Knockout holes are provided for wiring. (Fig. A)
Knockout holes are provided 2 each in the same size in front, lateral and rear sides. (Fig. B)
Fig. A
Service panel
Selecting power supply cable and breaker6. 3.
CAUTION
Regulation of cable size and circuit breaker differs from each locality, please refer in
accordance with local rules.
Refer to the table for the wiring and breaker specifi cations of each installation condition.
MODEL
A36LALH 32
AJ
A40LALH 32
AJ
A45LALH 32
AJ
AJ
A54LALH 32
MODEL
A36LALH 6 4 18
AJ
A40LALH 6 4 18
AJ
AJ
A45LALH 6 4 18
A54LALH 6 4 18
AJ
These values are recommended data. 1)
Specifi cation: Use conformed cord with Type 60245 IEC66 2)
Remarks : 230V ~ 50Hz 2Wire+ground
Max. cable length: Set a length so that the voltage drop is less than 2%. Increase 3)
the cable diameter when the cable length is long.
In case of connected outdoor unitFig.
Transmission cable
GOOD
230 V 1ø 50 Hz
Breaker
Outdoor unit
Power supply cable
Breaker (Time delay fuse or circuit capacity)
Fuse capacity (A) Leakage current
30mA
0.1sec or less
Outdoor unit power supply cable
Recommended cable size (mm2)
Power cable Earth cable
230 V 1ø 50 Hz
Limited wiring
length (m)
Indoor unit
Power supply
cable
Breaker
Remote controller
cable
Transmission line6. 4.
CAUTION
Caution when wiring cable•
When stripping off the coating of lead wire, always use the exclusive tool such
as a wire stripper. If there is no exclusive tool available necessarily, carefully
strip the coating by a cutter etc. so that the conductive wire is not damaged.
If it is damaged, it may lead to an open circuit and a communication error.
Pay attention to the following points while attaching wires on the terminal board.•
Do not attach 2 wires on one side.
Do not twist wires.
Do not cross the wires.
Do not shorted at edge at root.
2pcs at one side
Wires twisted
1 wire
Fig. B
Front connection
Lateral connection
En-9
Rear connection
PROHIBITED
Shorted at edge
PROHIBITED PROHIBITED
PROHIBITED
Shorted at root
GOOD
2 wires
GOOD
Page 11
Transmission wiring specifi cations6. 4. 1.
Follow the specifi cations below for the transmission cable.
Use Size Cable type Remarks
Transmission cable 0.33mm
22AWG LEVEL 4 (NEMA)
2
non-polar 2core, twisted pair
solid core diameter 0.65mm
LONWORKS ®
compatible cable
Wiring rules6. 4. 2.
(1)Total length of transmission cable
Total transmission line length: MAX 3600m
EF+EG+GH+HJ+HK+KL < 3600m (Fig.2)
In the following cases , Signal Amplifi er is required.
When the total length of the transmission line exceeded 500m.
①
AB+BC+BD > 500m (Fig.1)
When the total number of units* is over 64.
②
Transmission line length between each unit* ≧ 400m
③
(2)Length of transmission cable between 1 network segment (NS)
EF+EG+GH+HJ+HK ≦ 500m (Fig.2)
KL ≦ 400m (Fig.2)
Unit* means indoor unit, outdoor unit, Touch Panel Controller and System Controller,
Signal Amplifi er, single split adaptor, Network Convertor etc..
1Fig.
Terminal
resistor
2Fig.
E
Terminal resistor
Indoor unit
Outdoor unit
Outdoor unit
B
A
When AB+BC+BD>500m
:Signal Amplifi er is required.
NS 1
Indoor unit
F
Transmission line
Do not use loop wiring. NOTE)
This may lead to parts
damage and erroneous
operation.
D
System
Controller
C
Tou c h
Panel
Controller
Enabling/Disabling automatic address setting6. 4. 3.
You can enable/disable automatic address setting for the indoor unit and the signal
amplifi er.
To enable automatic address setting for the indoor unit, connect the indoor unit to outdoor units under the same refrigerant system.(Fig.4)
Example: Disable Automatic Address setting
Refrigerant
system 1
Refrigerant
system 2
Refrigerant
system 3
Example: Enable Automatic Address setting
Refrigerant
system 1
Refrigerant
system 2
Refrigerant
system 3
Transmission line
Transmission line
Transmission line
Transmission line
Transmission line
Transmission line
Transmission line
G
H
K
Signal Amplifi er
Terminal resistor
J
NS 2
L
Tou c h
Panel
Controller
System
Controller
En-10
Page 12
Wiring method6. 5.
Connection diagrams6. 5. 1.
Breaker : (1) Earth leakage circuit breaker
(2) Current breaker (over current)
Outdoor unit
Transmission
Breaker
Power supply
Indoor unit Indoor unit Indoor unit
Transmission
Power supply
*1
Power supply Power supply Power supply
*2 *2 *2
Remote
controller
Transmission
Power supply
*1
The wiring example for outdoor and indoor units is shown in fi gure.
Wiring procedure6. 5. 2.
Remove the service panel. And connect the cable to the terminal in accordance with the terminal name plate.•
Use a ring terminal to connect the electric cables to the power supply terminal board.•
Keep the earth cable longer than the other cables.•
After connecting the electric cable, secure them with a cable clamp.•
Connect the cable without applying excessive tension.•
Use the specifi ed cable type and connect the cable securely.•
To other refrigerant circuit Outdoor unit
Transmission
Remote controlRemote control
Power supply Remote control
*1
BreakerBreakerBreaker
Remote
controller
Remote
controller
*1: The number of power supply terminals is
different depending on the indoor unit model.
For the wiring, refer to the indoor unit installation manual.
*2: Ground the remote controller if it has a ground
cable.
Secure with a cable clamp as shown in the fi gure below.
8~10 mm
Transmission cable
about 550mm
Power supply cable
about 520mm
Cable tie
(accessory)
Sealing transmission cable
Connect both ends of the sealed wires of the transmission cable to the earth terminal of
the equipment or to the earth screw near the terminal.
Be very careful that the screws are not overly tightened as the cables may snap and the
terminal may be damaged.
En-11
Transmission terminal (M3)
25~40mm
Cable clamp
Cable tie
Tight ening torque
M3 screw 0.5 to 0.6 N·m
M5 screw 2.0 to 3.0 N·m
Power supply terminal
Ring terminal (M5)
45~50mm
earth cable
(5 to 6 kgf·cm)
(20 to 30 kgf·cm)
Use one side of the
twisted-pair cable
Be sure to use one side of a twisted-pair cable when using transmission cable with 2 sets
of twisted-pair cables.
How to connect wiring to the terminal
Caution when wiring cable
(1) Use crimp-type terminals with insulating sleeves as shown in
the fi gure to connect to the terminal block.
(2) Securely clamp the crimp-type terminals to the cables using an
appropriate tool so that the cables do not come loose.
(3) Use the specifi ed cables, connect them securely, and fasten
them so that there is no stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws.
Do not use a screwdriver that is too small, otherwise, the
screw heads may be damaged and prevent the screws from
25~30mm
being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the
screws may break.
(6) See the table below for the terminal screw tightening torques.
Strip : 10mm
Screw with special washer
Cable
Crimp-type terminal
Terminal blocks
Crimp-type
terminal
Sleeve
Screw with
special washer
Crimp-type
terminal
Wind with insulation tape to prevent short circuit
Connect both ends of sealed cable to earth.
Cable
Page 13
External input and external output6. 6.
Terminal position6. 6. 1.
Base heater
(CN115:Black)
Outdoor unit
PC board
BASE HEATER
Wiring method and specifi cations
A twisted pair cable (0.33mm*
150m.
Use an external input and output cable with appropriate external dimension, depend-*
ing on the number of cables to be installed
For each input, pin No.1 is of positive polarity and pin No.2 is of ground level.*
Input1
CN131
(Yellow)
2
(22AWG)) should be used. Maximum length of cable is
Input2
CN132
(Green)
Input3
CN133
(White)
Input4
CN134
(Red)
Input5
CN135
(Orange)
CN115 (BLK)
CN134
EXT.
PULSE
IN
(ORG)
EXT.
OUT. 1
(BLK)
EXT.
OUT. 2
(BLU)
CN133
CN132
CN131
IN. 4
(RED)
EXT.
IN. 3
(WHT)
EXT.
IN. 2
(GRN)
EXT.
IN. 1
(YEL)
Input 5
(CN135 :
Orange)
Output 1
(CN136 :
Black)
Output 2
(CN137:
Blue)
CN135
CN136
CN137
CAUTION
Do not bundle the cable for base heater with other cables.
When connecting cable to Input2
Input 4
(CN134:Red)
Input 3
(CN133:White)
Input 2
(CN132:Green)
Input 1
(CN131:Yellow)
P. C .B
connected unit
connected unit
connected unit connected unit connected unit
Operation behavior
Each input terminal works as follows.
Connector Input signal Status
Input1
CN131 (Yellow)
Input2
CN132 (Green) *1
Input3
CN133 (White)
Input4
CN134 (Red)
Input5
CN135 (Orange) *4
The operations of each input terminal and the selection of function are set with the push button
on the PC board of outdoor unit. About the setting, please refer to 7.4. Push button setting.
Note :
*1: The “external input priority mode” must be set by pressing push button on PC
board of outdoor unit. (Refer to “7.FIELD SETTING”.)
*2: Batch stop or Emergency stop pattern can be selected by outdoor unit PC board
push button. (Refer to “7.FIELD SETTING”.)
*3: The emergency stop function mounted in the J-II does not guarantee the regulations
of each country. For this reason, sufficient checking is necessary regarding use.
Especially, since the fact that the equipment may not be emergency-stopped in the
case of breaking of the wiring to the external input terminals and communication
line, communication error due to noise, VRF external input circuit trouble, etc. must
be considered, the provision of double measures that add direct interruption of the
power supply by switch, etc. is recommended as a precaution.
*4:
Pulse input to CN135 must be width 50ms or more, and must be interval 50ms or more.
OFF Normal operation
ON Low noise mode operation
OFF Cooling priority
ON Heating priority
OFF Normal operation
ON Outdoor unit operation peak control
OFF Normal operation
ON Batch stop or Emergency stop operation *2, *3
No pulse No information from electricity meter
Pulse Power usage information from electricity meter
about 550mm
Cable (for external input and output)
Cable tie (tightened with transmission cable)
Cable (for external input and output)
* If the outdoor unit is not installed in the wall, cover the exposed
part of cable with a 1 mm thick or more insulation tubing.
External input terminal6. 6. 2.
Service parts : EXTERNAL INPUT WIRE A (9368777005)
Setting to low noise mode, cooling priority/heating priority selection, outdoor unit •
operation peak control setting, emergency/batch stop and electricity meter pulse are
possible from the outside.
External output terminal6. 6. 3.
Service parts : EXTERNAL INPUT WIRE A (9368777005)
You can detect the operation condition of outdoor unit and the abnormal situation of •
both indoor and outdoor unit.
Wiring method and specifi cations
Error display
This output indicates the outdoor unit and connected indoor unit's “Normal” or “Error”
status.
Operation display
This output indicates the outdoor unit's “Operation” status.
Connector Output voltage Status
Output1
CN136 (Black)
Output2
CN137 (Blue)
0V Normal
DC 12-24 V *5 Error
0V Stop
DC 12-24 V *5 Operation
P. C .B
+
CN136
(Black)
or CN137
(Blue)
1
2
*7
DC power supply
*5
(External) 12 - 24V
+-
Connected load
(Operation Indicator
or Error Indicator)
*6
connected unit
En-12
Page 14
*5: Provide a DC12 to 24V power supply.
Select a power supply capacity with an ample surplus for the connected load.
*6: The allowable current is 30mA or less.
Provide a load resistance such that the current becomes 30mA or less.
*7: Polarity is [+] for pin 1 and [-] for pin 2. Connect correctly.
Do not impress a voltage exceeding 24V across pins 1-2.
A twisted pair cable (0.33mm*
Use an external input and output cable with appropriate external dimension, depend-*
ing on the number of cables to be installed.
2
(22AWG)) should be used. Maximum length of cable is 150m.
Base heater terminal6. 6. 4.
Service parts : WIRE WITH CONNECTOR (9708642000)
This is the output signal for base heater. Output signal ON, when the outdoor temperature goes down below 2°C, and signal OFF at the outdoor temperature 4°C.
P. C .B .
1
Voltage: power supply
2
3
4
CN115
(Black)
8: Connect to pin 1 and pin 3. No connection pin2 and pin4.*
9: The allowable current is 1A or less.*
input voltage
cable
2
(0.82mm
(18AWG))
*8
Base heater *9
FIELD SETTING7.
CAUTION
Discharge the static electricity from your body before setting up the DIP switches.
Never touch the terminals or the patterns on the parts that are mounted on the PC
board.
Terminating resistor setting7. 2. 2.
CAUTION
Be sure to set the terminal resistor according to specifi cations.
Set the terminal resistor for every network segment (NS).
If terminal resistor is set in multiple devices, the overall communication system may
be damaged.
If terminal resistor is not set in a device, abnormal communication may occur.
Be sure to• set 1 terminal resistor in a network segment. You can set the terminal
resistor at the outdoor unit or signal amplifi er.
When settin• g the terminal resistor of a signal amplifi er, refer to the installation manual
of the signal amplifi er.
When settin• g multiple terminal resistors, take note of the following items.
How many network segments are there in a VRF system?
①
Where will you set the terminal resistors in a network segment? (Condition for 1
②
segment: Total number of outdoor and indoor units and signal amplifi ers is less than
64, or the total length of the transmission cable is less than 500m)
How many outdoor units are connected to 1 refrigerant system?
③
Confi gure the setting (DIP switch SET5) of the terminal resistor of the outdoor units as
shown below from conditions 1 to 3.
SET5
4
OFF Disable -
ON Enable (Factory setting)
Figure: Terminal resistor setting
Master unit
Terminal resistor Remarks
NS1 (Network segment 1)
(Set terminal resistor at outdoor units)
Terminal resistor: on
Refrigerant system1
Terminal resistor: off
Field setting switches7. 1.
Remove the service panel of the outdoor unit and the cover of the electrical component
box to access the PC board of the outdoor unit.
PC board switches for various settings and LED displays are shown in the fi gure.
DIP switch setting7. 2.
List of Settings7. 2. 1.
SET5 must be set for the DIP switch.
Confi gure the settings before turning on the power. Settings for SET1, SET2, SET3 and
SET4 DIP switches are factory default ones. Do not change them.
DIP Switch Function
SET1 1-4 Forbidden
SET2 1-4 Forbidden
SET3 1-4 Forbidden
SET4 1-4 Forbidden
SET5
Outdoor unit printed circuit board
1-3 Forbidden
4 Terminal resistor setting
7 Segment
LED lamp
display
POWER
ERROR
MODE
LED101
LED102
(GREEN)
(RED)
LED104
LED105
MODE
SET 1
ENTER
SELECT
/EXIT
SW101
SW108
SW107
SW109
Push button
5'6
Rotary switch
SW106
X 10 X 1
SET 2
SW102
DIP switch
REF AD
SET 3
SW103
SW105
SET 4
SW104
Master unit
Master unit
NS2 (Network segment 2) NS3 (Network segment 3)
Refrigerant system2
Refrigerant system3
NS4 (Network segment 4)
Terminal resister: on
About the setting of terminal resistor
Outdoor unit
:on
:off
Signal amplifi er
Install
Do not install
Rotary switch setting7. 3.
The rotary switch (REF AD) sets the refrigerant circuit address of the outdoor unit. Confi gure the settings only on the master unit of a refrigerant system.
If multiple refrigerant systems are connected, set the rotary switch (REF AD) as shown
in the table below.
Rotary
Refrigerant
circuit
address
Switch
Setting
REF AD
×10 ×1
000
101
202
・・・
・・・
98 9 8
99 9 9
Setting
Refrigerant
address
Rotary Switch (REF AD × 1): Factory setting “0”
Rotary Switch (REF AD × 10): Factory setting “0”
circuit
Setting
range
0–99
Setting
example
63
Typ e o f swit ch
REF AD × 10
REF AD × 1
En-13
Page 15
Push button setting7. 4.
Various functions can be set. Set when necessary.
Perform settings after all indoor units have stopped operation.
A: List of SettingsTab le.
No Setting Item
Standard (40 to 65 m)
Short (less than 40 m) 0 1
0 Pipe length setting
10 (Forbidden) 1 0 0 0
11 Cooling capacity shift
12 Heating capacity shift
13 (Forbidden) 1 3 0 0
14 (Forbidden) 1 4 0 0
Switching between batch stop or
20
emergency stop
21 Operation mode selecting method
22 (Forbidden) 2 2 0 0
23 (Forbidden) 2 3 0 0
24 (Forbidden) 2 4 0 0
25 (Forbidden) 2 5 0 0
26 (Forbidden) 2 6 0 0
27 (Forbidden) 2 7 0 0
28 (Forbidden) 2 8 0 0
29 (Forbidden) 2 9 0 0
30 Outdoor unit capacity save setting
31 (Forbidden) 3 1 0 0 (Factory default)
Capacity priority setting (in low
40
noise mode)
41 Low noise mode setting
42 (Forbidden) 4 2 0 0 (Factory default)
60 (Forbidden) 6 0 0 0
70 Electricity meter No. settings 1
71 Electricity meter No. settings 2
72 Electricity meter pulse setting 1
73 Electricity meter pulse setting 2
90 (Forbidden) 9 0 0 0
Medium (65 to 90 m) 0 2
Long 1 (90 to 120 m) 0 3
(Forbidden) 0 4
Normal mode
Save energy mode 1 0 1
High power mode 1 0 2
High power mode 2 0 3
(Forbidden) 0 4
Normal mode
Save energy mode 0 1
High power mode 1 0 2
High power mode 2 0 3
Batch stop
Emergency stop 0 1
Priority given to the fi rst com-
mand
Priority given to external input of
outdoor unit
Priority given to administrative
indoor unit
Level 1 (stop)
Level 2 0 1
Level 3 0 2
Level 4 0 3
Level 5 0 4
Off (quiet priority)
On (capacity priority) 0 1
Off (Normal)
On (Low noise mode) 0 1
Setting number (x00)
Setting number (x01) 0 1
Setting number (x99) 9 9
Setting number (0xx)
Setting number (1xx) 0 1
Setting number (2xx) 0 2
Setting number (xx00)
Setting number (xx01) 0 1
Setting number (xx99) 9 9
Setting number (00xx)
Setting number (01xx) 0 1
Setting number (99xx) 9 9
7 segment display
First 2 digits Last 2 digits
00
11
12
20
21
30
40
41
70
71
72
73
00
00
00
00
00
01
02
00
00
00
00
00
00
00
Factory
default
Pipe length means the length between outdoor unit and the nearest indoor unit.
(Factory default)
Set this item when necessary.
Set this item when necessary.
(Factory default)
(Factory default)
This mode selects the pattern of the stop function to be operated by the external input
terminal (CN134).
• Batch stop: The stop of all indoor units connected to same refrigerant system due to
input signal coming from CN134.
• Emergency stop: When emergency stop is actuated, the indoor unit does not accept
the operation command from the remote controller. On the other hand, when the emergency stop is released (no input from CN134), the air conditioner does not return to the
original operation until operate indoor unit by the remote controller.
Select the priority setting of the operation mode.
• Priority given to the fi rst command: Priority is given to the operation mode which is set fi rst.
• Priority given to external input of outdoor unit: Priority is given to the operation mode which
is set by the external input terminal (CN132).
• Priority given to administrative indoor unit: Priority is given to the operation mode of the
administrative indoor unit which is set by the wired remote controller.
(Factory default)
(Factory default)
(Factory default)
(Factory default)
(Factory default)
(Factory default)
(Factory default)
(Factory default)
The capacity limit can be selected by the external input terminal (CN133) when operating with the “Outdoor unit capacity save function.” The lower the level, the more the
effect of energy saving, but the cooling/heating performance will also drop.
If the cooling/heating performance becomes insuffi cient when the low noise mode is set,
it is possible to set “capacity priority” that automatically cancels the low noise mode (once
performance is restored, the mode will automatically return to the low noise mode).
(Factory default)
Set the digit positions for integers and tens for the electricity meter connected to CN135.
Points to note on common No. 70 and 71
If the electricity meter No. is set to “0” or “201-299”, the pulse entered into CN135
will be disabled.
Set the digit position for the hundreds for the electricity meter connected to CN135.
Set the digit positions for the integers and tens of the pulse settings of the electricity
meter connected to CN135.
Points to note on common No 72 and 73
If the electricity meter pulse is set to “0”, the pulse entered into CN135 will be
disabled.
Set the digit positions for the hundreds and thousands of the pulse settings of the electricity meter connected to CN135.
(Factory default)
Content
En-14
Page 16
Turn on the power of the outdoor unit and enter standby mode. (1)
When system is normal•
POWER/MODE lamp lights up. (ERROR lamp is off.)
POWER/MODE lamp:
ON
7 segment display:
turn off
MODE/EXIT button
POWER
MODE
LED101
(GREEN)
LED105 LED104
MODE
SELECT ENTER
/EXIT
SW107
SELECT button
Setting method(2)
1: Function Setting
First 2 digits Last 2 digits
MODE/EXIT
ERROR lamp: OFF
ERROR
LED102
(RED)
SW108 SW109
ENTER button
7 segment display
(LED105, LED104)
(Flashing)
When system is abnormal•
Check the settings as there is an error in the settings for outdoor unit address
(DIP switch SET3-1, 2) or number of connected slave units (DIP switch SET3-3, 4).
POWER/MODE lamp:
ON
LED105 LED104
7 segment display:
“-” display
Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons to confi gure
settings according to the procedures below.
(If no setting is made, the factory default setting will be displayed.)
MODE/EXIT
SELECT
ENTER
: Press the “MODE/EXIT” button.
: Press the “SELECT” button.
: Press the “ENTER” button.
MODE
/EXIT
SW107 SW108 SW109
POWER
MODE
LED101
(GREEN)
SELECT ENTER
ERROR
LED102
(RED)
ERROR lamp:
Blinking
SELECT
ENTER
2: Setting the
fi rst 2 digits
SELECT
Every press of the “SELECT”
button will change the setting
number for the fi rst 2 digits.
SELECT
(When [F3] to [F9] are displayed, continue
to press the “SELECT” button until [F2] is
displayed.)
ENTER
SELECT
MODE/EXIT
ENTER
ENTER
: Press the “ENTER” button for more than 3 seconds.
SELECT
(Continue to press the “SELECT” button until the
desired number appears at the last 2 digits.)
SELECT
SELECT
ENTER
Setting is complete when the lamp lights up
Press “ENTER” button to return to “2.Setting the fi rst 2 digits”
(If there is no operation for 5 seconds after the setting, the
display will return to “2: Setting the fi rst 2 digits”.)
SELECT
(Continue to press the “SELECT” button
until the desired number appears at the
last 2 digits.)
SELECT
3: Setting the
last 2 digits
SELECT
MODE/EXIT
EXIT Press the “MODE/EXIT” button to cancel the setting mode.
En-15
MODE/EXIT
ENTER
Setting is complete when the lamp lights up
Press “ENTER” button to return to “2.Setting the fi rst 2 digits”
(If there is no operation for 5 seconds after the setting, the display
will return to “2: Setting the fi rst 2 digits”.)
Page 17
Address setting for signal amplifi ers7. 5.
Address setting for signal amplifi ers7. 5. 1.
When using signal amplifi ers, the address for signal amplifi ers must be set.
The address for signal amplifi ers can be set automatically from 1 outdoor unit (master
unit) on the network.
Refer to “Fig. Wiring example for automatic address setting” (7.6.1 chapter) for the wiring example.
(For manual setting of address, refer to the signal amplifi er installation manual.)
Automatic address setting for signal amplifi ers7. 5. 2.
When setting the address of the signal amplifi er, please use the factory setting. (See the
installation manual of the signal amplifi er)
When the system is normal, nothing will be displayed on the 7 segment display.
When ERROR is displayed, inspect the units.
Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit PC board
to confi gure settings according to the procedures below.
Indoor unit address setting7. 6.
Indoor unit address setting7. 6. 1.
Address must be set for the indoor unit.
Manual setting → • When setting with the switch inside the indoor unit, refer to
• When setting with a remote control, refer to the remote
Automatic setting → • Check that the wiring is as shown in the fi gure below.
Wiring example for automatic address settingFig.
(1) Signal amplifi er wiring example
(2)(3)(4) Indoor unit wiring example
(Connect the indoor and outdoor units of the same refrigerant system as shown
below.)
Refrigerant system1
the indoor unit operating manual.
control operating manual.
Operate using the outdoor master unit of each refrigerant
system.
Signal amplifi er
First 2 digits Last 2 digits
MODE/EXIT
＆＞
SELECT
＜
＆
SELECT
＆：
ENTER
ﻮﻮ
＠＠
SELECT
ﻮ
ﻮ
＞＠
ENTER
ﻺﻶ
ﻸ
４
ENTER
＞＠ﻮﻮ
MODE/EXIT
End
1: FUNCTION Setting
(the display when the main
power is turned on)
(When [F4] to [F9] are displayed,
continue to press the “SELECT”
button until [F3] is displayed.)
Automatic address setting for
signal amplifi ers
Press the “SELECT” button until
“10” is displayed.
Press the “ENTER” button for
more than 3 seconds.
Setting is complete when the
number of units is displayed
Master unit
Refrigerant system2
Master unit
Refrigerant system3
Master unit
The automatic address function can be used for a maximum of 9 indoor units
・NOTE)
installed to the same refrigerant system. When network is connected to other
refrigerant systems, the automatic address function cannot be used.
The addresses of indoor units that have been configured automatically
・
cannot be assigned in the order when they are installed. (Refer to the indoor
unit installation manual for the procedures to check the addresses.)
Procedures to enable automatic address setting on 7. 6. 2.
indoor units
Check that the rotary switch IU AD on the indoor unit PC board is set to “00”.If it is not
set to “00”, it means the address of that device is not set. (Factory default is “00”).
Turn on the power of the indoor and outdoor units.
When the system is normal, nothing will be displayed on the 7 segment display.
When ERROR is displayed, inspect the units.
Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit PC board
to confi gure settings according to the procedures below.
First 2 digits Last 2 digits
Signal amplifi er
MODE/EXIT
＆
＞
SELECT
＆
＜
SELECT
＆
：
1: FUNCTION Setting
(the display when the
main power is turned on)
(When [F4] to [F9] are displayed,
continue to press the “SELECT”
button until [F3] is displayed.)
ENTER
1
En-16
Page 18
First 2 digits
＠＠
＞＞
1
ﻸ
４
４
Automatic address setting
for indoor units
Last 2 digits
ﻮﻮ
SELECT
ﻮﻮ
ENTER
ﻺﻶ
＠
ENTER
＠
Press the “SELECT” button until
“11” is displayed.
Press the “ENTER” button for more
than 3 seconds.
It may take about 10 minutes for completing
the processing.
The number of indoor units with normal settings will be displayed at the fi rst 2 digits of
the 7 segment display. The number of indoor
units with error will be displayed at the last 2
digits.
NOTE) After the “ENTER” button is pressed, the
end processing will occur for about 30 seconds.
During this period, the 7 segment will blink.
PIPE INSTALLATION II8.
A Connection systemFig.
Outdoor unit
BFig.
Service hose with valve core
Charging port
Blank cap
Hexagon wrench
4mm (5/32")
Indoor
unit
Indoor
unit
Pressure gauge
Vac uum
pump
Pressure regulating valve
Nitrogen
Scale
Charging port cap
3-way valve
Connecting pipe
End
Resistance measurement of transmission cable 7. 7.
(Measure with breaker OFF)
CAUTION
Do not turn on the power if the resistance between the terminals of the transmission
cable is abnormal. Otherwise, the PC board may be damaged.
Measure the resistance between 2 terminals of a transmission cable.
Transmission cable connecting indoor units, outdoor units, and signal ampli-(1)
fi ers
Measure the resistance of the signal amplifi er terminal and the terminal of the indoor
and outdoor units connected farthest away from the device where terminal resistor
is measured.
A value from the table is displayed, depending on the distance from the signal amplifi er and the device where the terminal resistor is set.
This value is an estimate.
Transmission cable connecting outdoor units in a refrigerant system(2)
The resistance between the terminals of the transmission cable is 45-60 Ω.
This value is an estimate.
Distance from termination resistor (m)
0 ~100 ~ 200 ~ 300 ~400 ~500
0 ~ 50
190 ~ Faulty contact or wiring length over 500 m
Approximate resistance (Ω)
1K ~∞ Faulty contact, open circuit, or no termination resistor
A short circuit somewhere or 2 or more termination resistors are
connected
50
60
70
80
90
100
110
120
130
140
150
160
170
180
ATab le.
Pipe 3-way valve Blank capCharging port cap
Liquid
valve
Gas
valve
7.0 to 9.0 N·m
(70 to 90 kgf·cm)
11.0 to 13.0 N·m
(110 to 130 kgf·cm)
20.0 to 25.0 N·m
(200 to 250 kgf·cm)
30.0 to 35.0 N·m
(300 to 350 kgf·cm)
12.5 to 16.0 N·m
(125 to 160 kgf·cm)
12.5 to 16.0 N·m
(125 to 160 kgf·cm)
Sealing test8. 1.
CAUTION
Use only nitrogen gas.
Never use refrigerant gas, oxygen, in fl ammable gas or poisonous gas to pressurize
the system. (If oxygen is used, there is the danger of an explosion.)
Do not apply shock during sealing test.
It can rupture the pipes and cause serious injury.
Do not turn on the power unless all operations are complete.
Do not block the walls and the ceiling until the sealing test and the charging of the
refrigerant gas have been completed.
After connecting the pipes, perform an sealing test.
Recheck that the 3-way valve are closed before performing a sealing test.
(Fig. B)
Pour nitrogen gas through both the liquid pipe and the gas pipe.
Pressurize nitrogen gas to 4.2 MPa to perform the sealing test.
Check all fl are connection areas and brazed areas.
Then, check that the pressure has not decreased.
Compare the pressures after pressurizing and letting it stand for 24 hours, and check
that the pressure has not decreased.
When the outdoor temperature changes 5 °C, the test pressure changes 0.05 MPa.*
If the pressure has dropped, the pipe joints may be leaking.
If a leakage is found, immediately repair it and perform a sealing test again.
* Decrease the pressure of nitrogen gas before blazing
After completing the sealing test, release the nitrogen gas from both valves.
Release the nitrogen gas slowly.
En-17
Page 19
Vacuum process8. 2.
CAUTION
Do not turn on the power unless all operations are complete.
If the system is not evacuated suffi ciently, its performance will drop.
Be sure to evacuate the refrigerant system using a vacuum pump.
The refrigerant pressure may sometimes not rise when a closed valve is opened after
the system is evacuated using a vacuum pump. This is caused by the closure of the
refrigerant system of the outdoor unit by the electronic expansion valve. This will not
affect the operation of the unit.
Use a clean gauge manifold and charging hose that were designed specifi cally for
use with R410A. Using the same vacuum equipment for different refrigerants may
damage the vacuum pump or the unit.
Do not purge the air with refrigerants, but use a vacuum pump to evacuate the system.
If moisture might enter the piping, follow below. (i.e., if doing work during the rainy •
season, if the actual work takes long enough that condensation may form on the
inside of the pipes, if rain might enter the pipes during work, etc.)
After operating the vacuum pump for 2 hours, pressurize to 0.05 MPa (i.e., vacuum •
breakdown) with nitrogen gas, then depressurize down to -100.7kPa (-755mmHg)
for an hour using the vacuum pump (vacuum process).
If the pressure does not reach -100.7kPa (-755mmHg) even after depressurizing •
for at least 2 hours, repeat the vacuum breakdown - vacuum process.
After vacuum process, maintain the vacuum for an hour and make sure the pressure
does not rise by monitoring with a vacuum gauge.
Evacuation procedure
Remove(1) the blank caps of the gas pipe and liquid pipe and check that the valves
are closed.
Remove the charging port cap.(2)
Connect a vacuum pump and a pressure gauge to a charging hose and connect it (3)
to the charging port.
Activate the vacuum pump and vacuum the indoor unit and connection piping until (4)
the pressure gauge becomes -100.7kPa (-755mmHg).
Evacuate from both the gas pipe and the liquid pipe.
Continue evacuating the system for 1 hour after the pressure gauge reads (5)
-100.7kPa (-755mmHg).
Remove(6) the charging hose and reinstall the charging port cap.
Procedure for charging the system with refrigerant8. 3. 1.
Remove the charging port cap from the liquid pipe.(1)
Attach a charging hose to the refrigerant cylinder, and connect it to the charging port.(2)
Add refrigerant by calculating the additional refrigerant volume in accordance with (3)
the calculation formula indicated below.
Remove the charging hose and install the charging port cap.(4)
Remove the blank caps (gas pipe and liquid pipe) and open the valves.(5)
Close the blank caps.(6)
After adding refrigerant, indicate the added charging volume on the unit.(7)
Tighten the blank caps and charging port caps to the torque values specifi ed in the *
Tab le A.
To open and close the valves,
Use an M4 hexagon wrench.
Checking total amount of refrigerant and calculating 8. 3. 2.
the amount of refrigerant charge to be added
The amount of refrigerant charge to be added is the total value of the basic refriger-•
ant charge amount and the value calculated from the length of the liquid pipe.
Round up the value to 2 dec• imal places.
B
a
a
× 0.021
(kg/m)
kg
Diameter of liquid pipe (mm)
Calculation of additional amount for pipe length(1)
Total length of
ø9.52 mm
liquid pipe
A =
Total
=
Model
A36LALH 4.80
AJ
A40LALH 4.80
AJ
AJ
A45LALH 5.30
A54LALH 5.30
AJ
Ø6.35 0.021
Ø9.52 0.058
kg
+
Total length of
ø6.35 mm
liquid pipe
a
× 0.058
(kg/m)
m
(Round up A to 2 decimal place)
Factory charged amount (kg)
Additional amount for pipe length (kg/m)
m
kg
Additional charging8. 3.
CAUTION
Do not turn on the power unless all operations are complete.
After evacuating the system, add refrigerant.
Do not charge the system with a refrigerant other than R410A.
Always keep to the limit on the total amount of refrigerant. Exceeding the limit on the
total amount of refrigerant will lead to malfunction during charging of refrigerant.
Do not reuse recovered refrigerant.
Use an electronic scale to measure the charging amount of refrigerant.
Adding more refrigerant than the specifi ed amount will cause a malfunction.
Charge refrigerant using the liquid pipe.
Adding refrigerant through the gas pipe will cause a malfunction.
Add refrigerant by charging the system with the refrigerant in the liquid state. If the
refrigerant cylinder is equipped with a siphon, it is not necessary to place the cylinder
upright.
Check if the steel cylinder has a siphon installed or not before filling. (There is an
indication “with siphon for filling liquid” on the steel cylinder.)
Filling method for cylinder with siphon
R410A
Liquid
Filling method for other cylinders
R410A
Liquid
Be sure to use the special tools for R410A for pressure resistance and to avoid mixing of impure substances.
If the units are further apart than the maximum pipe length, correct operation can not
be guaranteed.
Make sure to back closing valve after refrigerant charging. Otherwise, the compressor
may fail.
Minimize refrigerant release to the air. Excessive release is prohibited under the
Freon Collection and Destruction Law.
Set the cylinder vertical and fill with the
Gas
liquid.
(Liquid can be filled without turning bottom up with the siphon inside.)
Turn bottom up and fill with liquid.
Gas
(Be careful to avoid turning over the
cylinder.)
Calculation of total refrigerant amount(2)
C = A+B =
(B : Factory charged amount)
kg
Note: Check the total refrigerant amount under the following conditions
Condition Computational formula
Total amount of refrigerant C
<
=
15.7kg
<Calculation>
Outdoor unit: AJ A54LALH
Calculation of additional amount for outdoor unit(1)
If liquid pipe piping length is the following
Φ9.52: 50m , Φ6.35: 35m
Additional charge volume:
A=50(m) × 0.058(kg/m)+35(m) × 0.021(kg/m)
=3.635kg
Check the total amount of refrigerant(2)
C=A+B=3.64kg+5.30kg=8.94kg
→No problem if the above condition is satisfi ed.
3.64kg
<
kg
15.7
=
En-18
Page 20
Installing insulation8. 4.
Install insulation material after conducting the “8.1 Sealing Test”.•
To prevent condensation and water droplets, install insulation material on the refriger-•
ant pipe.
Refer to the table to determine the thickness of the insulation material.•
If the outdoor unit is installed at a level that is higher than the indoor unit, the water that •
has condensed in the 3-way valve of the outdoor unit could travel to the indoor unit.
Therefore, use putty in the space between the pipe and the insulation to prevent the
entry of water.
Selection of insulationTa ble .
(for using an insulation material with equal heat transmission rate or below 0.040W/(m·k))
Insulation material
Minimum thickness (mm)
70%
<
=
75%
<
80%
=
Relative humidity
Pipe diameter
(mm)
When an ambient temperature and relative humidity exceed 32 °C, please strengthen *
heat insulation of refrigerant pipe.
6.35 8 10 13 17
9.52 9 11 14 18
12.70 10 12 15 19
15.88 10 12 16 20
19.05 10 13 16 21
<
=
<
85%
=
Filling with putty8. 5.
WARNING
Fill the piping holes and wiring holes with putty (supplied locally) to avoid any gap
(Fig A). If small animals such as insects enter the external unit, a short circuit may be
caused near electrical components in the service panel.
If the outdoor unit is installed at a •
level that is higher than the indoor
unit, the water that has condensed
in the 3-way valve of the outdoor
unit could travel to the indoor unit.
Therefore, use putty in the space
between the pipe and the insulation
to prevent the entry of water to the
indoor units.
Fig. A
Insulation
Putty
TEST OPERATION9.
Indoor unit connection check9. 1.
Normal operation will not be possible without performing the Indoor unit connection
check.
Things to confi rm before starting the Indoor unit 9. 1. 1.
connection check
To ensure safety, check that the following work, inspections and operations have been
completed.
Check that all work on the wiring connecting the outdoor
1
unit and indoor units has been completed.
Is a breaker installed at the power supply cable of out-
2
door unit and every indoor units?
Are the cables connected to the terminals without loose-
3
ness, and in accordance with the specifi cations?
Are all the indoor units stopped? Indoor unit connection
4
check can not be performed if any unit is operating.
Is the connection to Service tool (UTY-ASGX) and Web
5
monitoring tool (UTY-AMGX) stopped?
Restrictions applicable when performing the Indoor 9. 1. 2.
unit connection check
The Indoor unit connection check can be completed within several minutes.
9. 1. 3.
Operating procedure for Indoor unit connection check
Please perform the indoor unit connection check according to following procedures.
Turn on the power •
of indoor unit and
outdoor unit.
LED105
LED104
Check Item Check Column
MODE/EXIT
SELECT
ENTER
ENTER
MODE/EXIT
: Press the “MODE/EXIT” button.
: Press the “SELECT” button.
: Press the “ENTER” button.
: Press the “ENTER” button for
more than 3 seconds.
Set to Function mode [F3].
SELECT
SELECT
ENTER
SELECT
ENTER
“ENTER”
Press the •
more than 3 seconds.
This will be displayed when the •
Indoor unit connection check
starts.
(When [F4] to [F9] are displayed,
continue to press the “SELECT”
button until [F3] is displayed.)
Press the “SELECT” button until
“12” is displayed.
button for
When indoor unit connection check
can not be performed
En-19
Page 21
ENTER
(*1)
ENTER
MODE/EXIT
Confi rm the number of connected indoor •
units and the volume ratio of the indoor
units connection.
(*1) The number of connected
SELECT
(*2)
ENTER
When error occurs
When it fi nishes normally, nothing will be displayed on
7 segment display.
indoor units
Ex.) When 8 units are connected
(*2) Volume ratio of the indoor
units connection
Ex.) When the ratio is 120%
Exit indoor unit connection check •
mode.
Please refer to the following “Error displays”
for details.
Test run9. 2.
Before the test operation, check the following items.
Is there a gas leakage? (At pipe connections {fl ange connections and brazed
①
areas})
Is the system charged with the specifi ed volume of refrigerant?
②
Is the refrigerant circuit address correct?
③
Is a breaker installed at the power supply cable of outdoor unit?
④
Are the cable connected to the terminals without looseness, and in accordance with the
⑤
specifi cations?
Are the initial settings of the switches of the outdoor unit correctly confi gured?
⑥
Is the 3-way valve of the outdoor unit open? (Gas pipe and liquid pipe)
⑦
Is power supplied to the crank case heater for more than 12 hours? Electricity cur-
⑧
rent in short period of time may result in compressor damage.
Are all the indoor units within the same coolant system connected to the power?
⑨
Operating indoor units which are not connected to the power may result in malfunctions.
Is Indoor unit connection check performed? Test run doesn't operate if Indoor unit
⑩
connection check is not performed.
After checking that the above items are all in order, refer to
“9.3. Test run method” to test operation the unit.
If there are problems, adjust immediately and recheck.
Test run method9. 3.
Be sure to confi gure test run settings only when the outdoor unit has stopped
operating.
Depending on the communication status between the indoor and outdoor units, it •
may take several minutes for the system to start operating after settings for the test
run are complete.
After the test run settings are complete, the outdoor unit and the connected indoor •
units will start operating. Room temperature control will not activate during test
operation (continuous operation).
If a knocking sound can be heard in the liquid compression of the compressor, stop •
the unit immediately and then energize the crank case heater for a suffi cient length
of time before restarting the operation.
Error displays9. 1. 4.
When error occurs, “Err” and “Number of errors occurred” are alternately displayed •
on the 7 segment display every 1 second.
For the content of error, please refer to the “10.2. Error display mode”.•
When error codes are displayed, all the error codes can be confi rmed by pressing the •
“SELECT” button.
Example: When “Indoor unit capacity error [E221]”, “Connection unit number error (indoor
unit) [E242]” and “Indoor unit duplicate address error [E261]” occurred.
ENTER
(*1) When the address of the overlap
indoor unit is displayed, press and
hold the “ENTER” button for more
SELECT
SELECT
ENTER
than 3 seconds.
(*1)
ENTER
ENTER
(*2) When errors other than the address
of the overlap indoor unit exist,
press “SELECT” button to switch to
the next error.
If error occurs, it will display “-”.
[Ad + address number]
(*2)
En-20
Page 22
Perform test operation for each refrigerant system.
You can set “cooling test operation" or “heating test operation” with the push button on the outdoor unit PC board.
Test operation setting method
Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the indoor unit PC board to confi gure settings according to the procedures below.
Perform test run for refrigerant system.
You can set “cooling test run” or “heating test run” with the push button on the outdoor unit PC board.
Test run setting method
Function settings
First 2 digits
Last 2 digits
MODE/EXIT
SELECT
SELECT
(When [F4] to [F9] are displayed, continue to press
the “SELECT” button until [F3] is displayed.)
ENTER
SELECT
ENTER
Press the “ENTER” button for
more than 3 seconds.
This will be displayed when
the cooling test run starts.
This will be displayed
after 5 seconds.
MODE/EXIT
SELECT
ENTER
ENTER
For heating operation, press the “SELECT”
button until “01” is displayed.
: Press the “MODE/EXIT” button.
: Press the “SELECT” button.
: Press the “ENTER” button.
: Press the “ENTER” button for
ENTER
Press the “ENTER” button for
more than 3 seconds.
This will be displayed when
the heating test run starts.
This will be displayed
after 5 seconds.
more than 3 seconds.
Settings for starting
test run operation
SELECT
ENTER
Press the “ENTER” button for
more than 3 seconds.
This will be displayed when the
cooling operation mode is canceled.
This will be displayed
after 5 seconds.
MODE/EXIT
SELECT
ENTER
Press the “ENTER” button for
more than 3 seconds.
This will be displayed when the heating operation mode is canceled.
This will be displayed
after 5 seconds.
Settings for stopping
test run operation
EXIT
After the test operation is complete, turn off the power. Attach the cover of the electrical component box and the front panel of the outdoor unit.
Note
Check that the indoor and outdoor units connected to the same refrigerant system are operating normally.•
When indoor or outdoor units are not operating, or when the indoor and outdoor units of other refrigerant systems are operating, the indoor/outdoor unit address are not confi gured •
correctly.
The system will not operate normally with an incorrect DIP switch setting.•
Stop the system immediately and recheck the DIP switch setting.
En-21
Page 23
㪣㪜㪛㩷㫃㪸㫄㫇㩷㪑
㪑
㪑
㪑
Checklist9. 4.
Check description Check method Criteria
High and low pressure values
1
are normal.
Drain water is discharged
2
smoothly through the drain
hose.
Indoor and outdoor unit fans
3
are operating.
Compressor operates after
4
the indoor unit operates.
Difference between inlet and
5
outlet temperatures is normal.
6 Error is not displayed
Check it with a pressure gauge.
Check it by pouring
water.
Check them visually. ―
Check the operating
sound.
Measure the inlet and
outlet temperatures.
Check the 7 segment
display
Cooling: low pressure
approx. 0.8 MPa
Heating: high pressure
3.0 MPa
approx.
―
―
Temperature difference
10 degrees
Error blinking or no error
code display
LED Display10.
You can determine the operating status by the lighting up and blinking of the LED display.
Check the status using the table below.
Normal operation mode10. 1.
Mode CODE DESCRIPTION
CL Cooling
Ht Heating
Operation
Error display mode10. 2.
Mode CODE DESCRIPTION
Communication
error
Indoor unit
actuator error
Outdoor unit
PCB/Electrical
component/
Switch error
Outdoor unit
sensor error
Outdoor unit
actuator error
o r During oil recovery operation
d F During defrosting operation
P C During power saving operation
L n During low noise operation
E 1 4. 2 Outdoor unit network communication 2 error
E 1 4. 5 The number of indoor unit shortage
E 5 U. 1 Indoor unit miscellaneous error
E62.3Outdoor unit EEPROM access error
E 6 2. 6 Outdoor unit inverters communication error
E 6 2. 8 Outdoor unit EEPROM data corruption error
E 6 3. 1 Outdoor unit inverter error
E67.2
E68.2
E69.1
E 7 1. 1 Outdoor unit discharge temp. thermistor 1 error
E72.1
E73.3
E 7 4. 1 Outside air temp. thermistor error
E 7 5. 1 Outdoor unit suction gas temp. thermistor error
E 7 7. 1 Outdoor unit heat sink temp. thermistor error
E82.1
E82.2
E 8 3. 2 Outdoor unit liquid pipe temp. thermistor 2 error
E84.1
E 8 6. 1 Outdoor unit discharge pressure sensor error
E 8 6. 3 Outdoor unit suction pressure sensor error
E 8 6. 4 Outdoor unit high pressure switch 1 error
E 9 3. 1 Outdoor unit inverter compressor start up error
E 9 4. 1 Outdoor unit trip detection
E95.5
E 9 7. 1 Outdoor unit fan motor 1 lock error
E 9 7. 4 Outdoor unit fan motor 1 undervoltage
E97.5
E98.1Outdoor unit fan motor 2 lock error
E98.5
E 9 A. 1 Outdoor unit coil 1 (expansion valve 1) error
E 9 A. 2 Outdoor unit coil 2 (expansion valve 2) error
Outdoor unit inverter PCB power short interruption error
Outdoor unit rush current limiting resister temp.
rise error (protective operation)
Outdoor unit transmission PCB parallel communication error
Outdoor unit compressor temp. thermistor 1 error
Outdoor unit heat ex. liquid temp. thermistor error
Outdoor unit sub-cool heat ex. gas inlet temp.
thermistor error
Outdoor unit sub-cool heat ex. gas outlet temp.
thermistor error
Outdoor unit current sensor 1 error
(permanent stop)
Outdoor unit compressor motor loss of synchronization
Outdoor unit fan motor 1 temperature error
(protective action)
Outdoor unit fan motor 2 temperature error
(protective action)
Outdoor unit discharge temperature 1 error
(permanent stop)
Outdoor unit compressor 1 temperature error
Refrigerant
system error
EA1.1
EA3.1
E A 4. 1 Outdoor unit high pressure error
E A 4. 2 Outdoor unit high pressure protective action 1
E A 5. 1 Outdoor unit low pressure error
E A C. 4 Outdoor unit heat sink temperature error
㪣
㪘㪑
㪚㪑 㪜㪑
㪃㪃㪃 㪃㪃㪃㪃㪃
㪧
㪃㪃㪃㪃㪃
㪐㪑㪏㪑
㪃
㪻㪑㪪㪑
㪊㪑㪈㪑 㪉㪑
㪇㪑
㪝㪑
㪃
㫅㪑 㫆
㪃㪃㪃
㪃㪃
㪋㪑
㪬㪑
㪃
㪃㪃
㪌㪑
㪡㪑
㫉㪑 㫋㪑
㪍㪑
㪃
INFORMATION11.
Main contents of label
Item Detail
Model name 1. Model name
Serial number 2. Serial number
Electric characteristics 3. Phase, rated voltage, and frequency
Weight 4. Product weight
Capacity 5.
Current 6.
Input power 7.
Max. Current 8.
Air circulation 9. Air circulation
Noise level10. Noise level
Refrigerant11.
Max. pressure (HP/LP)12.
Protection13. Protection level against dust and water
Working temperature14. Working temperature
Condition of cooling/heating15.
Condition of max. cooling16.
Manufacture year17. Manufacture year
Origin18. Origin country
Manufacturer19.
Cooling/heating capacity under cooling/
heating condition (refer to item 15)
Electric current during cooling/heating
operation under cooling/heating condition
(refer to item 15)
Input during cooling/heating operation
under cooling/heating condition (refer to
item 15)
Maximum electric current (temperature
condition is max. cooling condition [refer
to item 16])
Refrigerant type and initial charging
amount
Means pressure of High Pressure side/
Low Pressure side
Dry-bulb temperature and wet-bulb temperature under standard cooling/heating
condition
Dry-bulb temperature and wet-bulb temperature at maximum electric current and
input
Manufacturer
FUJITSU GENERAL LIMITED
Address: 1116, Suenaga, Takatsu-ku,
Kawasaki 213-8502, Japan
㪣㪑㪟
㪃
㪎㪑
㪃
㪃
En-22
Loading...