Fujitsu AJG072JATAH Handleiding
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En-1
PART No. 9378945746-01
INSTALLATION MANUAL
For authorized service personnel only.
VRF SYSTEM OUTDOOR UNIT (Cooling only)
AJG072JATAH
AJG090JATAH
AJG108JATAH
AJG126JATAH
AJG144JATAH
AJG162JATAH
AJG180JATAH
Contents
1. SAFETY PRECAUTIONS ........................................................................................ 1
2. ABOUT THIS PRODUCT ......................................................................................... 2
2.1. Precautions for using R410A refrigerant ....................................................... 2
2.2. Special tools for R410A .................................................................................2
2.3. Accessories .................................................................................................. 2
2.4. Combinations ................................................................................................ 3
2.5. Optional parts................................................................................................ 3
3. INSTALLATION WORK ............................................................................................ 3
3.1. Selecting an installation location ................................................................... 3
3.2. Drain processing ........................................................................................... 3
3.3. Clearance requirement ................................................................................. 4
3.4. Transporting the unit ..................................................................................... 5
3.5. Installing the unit ........................................................................................... 6
3.6. Removingthecompressorxture ................................................................. 6
4. SYSTEM CONFIGURATION ................................................................................... 6
4.1. Systemconguration .................................................................................... 6
4.2. Pipe selection................................................................................................ 7
4.3. Protection of pipes ........................................................................................ 8
5. PIPE INSTALLATION ............................................................................................... 9
5.1. Brazing .......................................................................................................... 9
5.2. Indoor unit pipe connections ......................................................................... 9
5.3. Opening for piping ......................................................................................... 9
5.4. Pipe connection ............................................................................................ 9
5.5. Multiple connections ................................................................................... 10
6. ELECTRICAL WIRING ........................................................................................... 12
6.1. The precautions of electrical wiring ............................................................. 12
6.2. Wiring method ............................................................................................. 12
6.3. Opening for wiring ....................................................................................... 12
6.4. Selecting power supply cable and breaker ................................................. 13
6.5. Transmission line ........................................................................................13
6.6. Wiring procedure......................................................................................... 14
6.7. Externalinputandexternaloutput .............................................................. 15
7. FIELD SETTING .................................................................................................... 16
7.1. Field setting switches .................................................................................. 16
7.2. DIP switch setting ....................................................................................... 16
7.3. Rotary switch setting ................................................................................... 17
7.4. Push button setting ..................................................................................... 17
7.5. AddresssettingforSignalampliers ........................................................... 19
7.6. Indoor unit address setting .......................................................................... 19
7.7. Resistance measurement of transmission cable
(Measure with breaker OFF) ....................................................................... 19
8. PIPE INSTALLATION II .......................................................................................... 20
8.1. Sealing test ................................................................................................. 20
8.2. Vacuum process ......................................................................................... 20
8.3. Installing thermal insulation ......................................................................... 21
9. TEST RUN ............................................................................................................. 22
9.1. Pre-check for test run.................................................................................. 22
9.2. Test run method .......................................................................................... 22
9.3. Checklist ..................................................................................................... 22
10. STATUS DISPLAY ................................................................................................. 23
10.1. Normal operation codes .............................................................................. 23
10.2. Error codes ................................................................................................. 23
1. SAFETY PRECAUTIONS
• 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,
explaintothecustomerhowtooperateandmaintaintheunit.
• Please pass this Installation manual together with the Operating manual to the customer.
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
This mark indicates procedures which, if improperly per-
formed, might lead to the death or serious injury of the user.
For installation purposes, be sure to use the parts supplied by the manufacturer or other
prescribed parts.
Using non-specified parts will cause serious accidents such as falling unit, refrigerant
leakage, water leakage, electric shock, and fire.
To install a unit that uses the R410A refrigerant, use dedicated tools and pipe materials
that have been manufactured specifically for R410A use.
BecausethepressureoftheR410Arefrigerantisapproximately1.6timeshigherthan
the R22, failure to use dedicated pipe material or improper installation can cause
rupture or injury.
It will also cause serious accidents such as refrigerant leakage, water leakage, electric
shock, and fire.
Do not use this equipment with air or any other unspecified refrigerant in the refrigerant
lines.
Excesspressurecancausearupture.
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.
Ifthereisarefrigerantleakage,makesurethatitdoesnotexceedtheconcentration
limit.
Ifarefrigerantleakageexceedstheconcentrationlimit,itcanleadtoaccidentssuchas
oxygenstarvation.
If a refrigerant leakage occurs during operation, immediately vacate the premises and
thoroughly ventilate the area.
Iftherefrigerantisexposedtofire,itwillcreateahazardousgas.
Electrical work must be performed in accordance with this Installation manual by a
person certified under the national or regional regulations. Be sure to use a dedicated
circuit for the unit.
An insufficient power supply circuit or improperly performed electrical work can cause
serious accidents such as electric shock or fire.
For wiring, use the prescribed type of cables, connect them securely, making sure that
therearenoexternalforcesofthecablesappliedtotheterminalconnections.
Improperly connected or secured cables can cause serious accidents such as overheat-
ing the terminals, electric shock, or fire.
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 fire.
After the installation, make sure there is no refrigerant leakage.
Iftherefrigerantleaksintotheroomandbecomesexposedtoasourceoffiresuchasa
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.
Useonlyaspecifiedpowercable.Poorconnection,poorelectricalinsulation,andexceed-
ing the allowable current will lead to electric shock and fire
.
Attach the connecting cables securely to the terminal. Or secure it firmly with a "wiring
suppressor".
Loose connection will lead to malfunction, electric shock, and fire.
Install a 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 fire.
During installation, make sure that the refrigerant pipe is attached firmly before you run
the compressor.
Do not operate the compressor under the condition of refrigerant pipes not attached
properly with the valves 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 pipes. Do not remove the connection pipe while the com-
pressor is in operation with the valves open. This may cause abnormal pressure in the
refrigeration cycle that leads to breakage and even injury.
If there is a possibility of touching the fan during maintenance, make sure to turn OFF
the power before implementing the maintenance. Even if operations are suspended,
the fan of outdoor unit sometimes rotates, so if the fan rotates suddenly while in contact
with you may cause serious injury.
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En-2
2.2. Special tools for R410A
Tool name Contents of change for R22 tool
Gauge mani-
fold
Pressure is huge and cannot be measured with a conventional gauge.
Topreventerroneousmixingofotherrefrigerants,thediameterof
each port has been changed.
It is recommended to use a gauge manifold with a high pressure
display range -0.1 to 5.3 MPa and a low pressure display range -0.1
to 3.8 MPa.
Charging hose
To increase pressure resistance, the hose material and base size
were changed.
Vacuum pump
A conventional vacuum pump can be used by installing a vacuum
pump adapter.
• A conventional vacuum pump can be used by installing a vacuum
pump adapter.
• Be sure that the pump oil does not back flow into the system. Use
one capable for vacuum suction of -100.7kPa (5 Ton, -755mmHg).
Gas leakage
detector
Special gas leakage detector for HFC refrigerant R410A.
2.3. Accessories
Use connecting parts as required.
Do not throw away the connecting parts until the installation has been complete.
Name and shape Q’ty Application
Installation manual
1
(This manual)
Cable tie
1
Forfixingthetransmissioncableand
optional parts cable.
Grommet edging
2
For power supply cable and connec-
tion cable installation. Attach to the
knockout.
Push mount cable tie
2
Forfixingthepowersupplycable.
Insulation (for electrical wiring)
1
For prevent insects from entering
through the cable hole. Cut to the
required size and use.
Joint pipes included to each outdoor unit
Name and shape [L: length (mm)]
ID: Inside diameter [mm]
OD: Outside diameter [mm]
Quantity per model
072 090
108/126/144/ 162/180
Elbow pipe A
OD 28.58
OD 22.8
— — 1 1
Elbow pipe B
OD 22.22
OD 22.8
— 1 — —
Elbow pipe C
OD 19.05
OD 22.22
OD 22.8
1 — — —
Joint pipe D
(L: 191)
OD 22.8
ID 28.58
— — 1 1
Joint pipe E
(L: 191)
OD 22.8
ID 22.22
— 1 — —
Joint pipe G
(L: 231)
OD 22.8
ID 22.22
ID 19.05
1 — — —
Reducer AD (L: 50)
ID 9.52
OD 12.7
2 2 — —
Reducer Q (L: 95)
ID 19.05
OD 22.22
1 — — —
Reducer P (L: 95)
ID 12.7
OD 15.88
1 — — —
Reducer W (L: 80)
ID 15.88
OD 12.7
— — — 1
CAUTION
This mark indicates procedures which, if improperly per-
formed, might possibly result in personal harm to the user, or
damage to property.
This unit must be installed by qualified personnel with a capacity certificate for handling
refrigerant fluids. Refer to regulation and laws in use on installation place.
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 person-
nel 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, specification 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 0.33 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.
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 filled 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 fibers or
flammable dust, or volatile flammables such as paint thinner or gasoline.
If gas leaks and settles around the unit, it can cause a fire.
• Avoid installing the unit at places where it will come into contact with animals’ urine or
ammonia.
Theunitsarenotexplosionproofandthereforeshouldnotbeinstalledinexplosive
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 wire to a gas pipe, water pipe, lightning rod,
or a telephone ground wire. 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, wet-
ting the furniture.
Do not touch the fins with bare hands.
Be sure not to start or stop the operation of air conditioning with power breaker. Other-
wise, 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. Be-
sides, 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, sen-
soryormentaldisability,orpersonslackingexperienceorknowledgeunlesstheyhave
been given by the through a person responsible for their safety, supervision or instruc-
tion concerning the use of the device.
2. ABOUT THIS PRODUCT
2.1. Precautions for using R410A refrigerant
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 flare nuts
with the R410A piping and flare nuts.
Models that use refrigerant R410A have a different charging port thread diameter to pre-
vent 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 composition
of the gas and liquid phases, and always charge from the liquid phase side whose
composition is stable.
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Product specificaties
| Merk: | Fujitsu |
| Categorie: | Airco |
| Model: | AJG072JATAH |
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