Fujitsu AJYA90LALH, AJY144LALH, AJY108LALH, AJY126LALH, AJHA72LALH Installation Manual

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AJYA72LALH

INSTALLATION MANUAL

OUTDOOR UNIT

For authorized service personnel only.

INSTALLATIONSANLEITUNG

AUßENGERÄT

Nur für autorisiertes Fachpersonal.

MANUEL D’INSTALLATION

UNITÉ EXTÉRIEURE

Pour le personnel agréé uniquement.

English

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AJYA90LALH AJY108LALH AJY126LALH AJY144LALH

AJHA72LALH AJHA90LALH AJH108LALH AJH126LALH AJH144LALH

MANUAL DE INSTALACIÓN

UNIDAD EXTERIOR

Únicamente para personal de servicio autorizado.

MANUALE DI INSTALLAZIONE

UNITÀ ESTERNA

A uso esclusivo del personale tecnico autorizzato.

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Μόνο για εξουσιοδοτημένο τεχνικό προσωπικό.

MANUAL DE INSTALAÇÃO

UNIDADE EXTERIOR

Apenas para técnicos autorizados.

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ВНЕШНИЙ МОДУЛЬ

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Yalnızca yetkili servis personeli için.

安装说明书

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仅针对授权的专业维修人员。

PART NO. 9378945104

中　文

Page 2

INSTALLATION MANUAL

PART NO. 9378945104 VRF system outdoor unit

CONTENTS

1. SAFETY PRECAUTIONS ........................................................................................ 1

2. ABOUT THE UNIT ...................................................................................................2

2. 1. Precautions for using the R410A refrigerant .................................................2

2. 2. Special tools for R410A .................................................................................2

2. 3. Accessories ..................................................................................................2

2. 4. Combinations ................................................................................................ 2

2. 5. 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. Transportation the outdoor unit .....................................................................5

3. 5. Installation the unit ........................................................................................ 6

4. SYSTEM CONFIGURATION ...................................................................................6

4. 1. System conﬁ guration .................................................................................... 6

4. 2. Pipe selection................................................................................................7

4. 3. Protection of pipes ........................................................................................ 8

5. PIPE INSTALLATION ............................................................................................... 8

5. 1. Brazing .......................................................................................................... 8

5. 2. Indoor unit pipe connections ......................................................................... 8

5. 3. Piping method ............................................................................................... 8

5. 4. Multiple connections .....................................................................................9

6. ELECTRICAL WIRING ........................................................................................... 11

6. 1. The precautions of electrical wiring ............................................................. 11

6. 2. Wiring method ............................................................................................. 11

6. 3. Knockout hole ............................................................................................. 11

6. 4. Selecting power supply cable and breaker ................................................. 12

6. 5. Transmission line ........................................................................................12

6. 6. Wiring procedure......................................................................................... 13

6. 7. External input and external output .............................................................. 14

7. FIELD SETTING ....................................................................................................15

7. 1. Field setting switches .................................................................................. 15

7. 2. DIP switch setting ....................................................................................... 15

7. 3. Rotary switch setting ................................................................................... 16

7. 4. Push button setting ..................................................................................... 17

7. 5. Signal ampliﬁ er address setting .................................................................. 19

7. 6. Indoor unit address setting .......................................................................... 19

7. 7. Resistance measurement of transmission cable

(Measure with breaker OFF) ....................................................................... 20

8. PIPE INSTALLATION II .......................................................................................... 20

8. 1. Sealing test ................................................................................................. 20

8. 2. Vacuum process .........................................................................................20

8. 3. Additional charging .....................................................................................21

8. 4. Installing insulation ...................................................................................... 22

9. TEST RUN .............................................................................................................22

9. 1. Pre-test run check items ............................................................................. 22

9. 2. Test operation method ................................................................................ 22

9. 3. Checklist ..................................................................................................... 23

10. LED Status ............................................................................................................. 23

10. 1. Normal operation mode .............................................................................. 23

10. 2. Error codes ................................................................................................. 23

11. INFORMATION ...................................................................................................... 24

SAFETY PRECAUTIONS1.

Be sure to read this Installation manual thoroughly before installation• The warnings and precautions indicated in this Installation manual contain impor-• tant 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.

This mark indicates procedures which, if improperly

WARNING

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, refriger- ant leakage, water leakage, electric shock, and ﬁ re.

performed, might lead to the death or serious injury of the user.

To in st all a u nit th at us es 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 refrig- erant 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 dedi- cated 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.

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 "wir- ing suppressor". Loose connection will lead to malfunction, electric shock, and ﬁ re.

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 ﬁ re.

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.

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.

This mark indicates procedures which, if improperly

CAUTION

This unit must be installed by qualiﬁ ed personnel with a capacity certiﬁ cate for handling 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 0.33 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.

performed, might possibly result in personal harm to the user, or damage to property.

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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 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, 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.

Tool name Contents of change for R22 tool

A conventional (R22) vacuum pump can be used by installing a vacuum pump adapter.

Vac uu m p um p

Gas leakage detector

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 sys-• tem. Use one capable for vacuum suction of -100.7kPa (5 Ton, -755mmHg).

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

Joint pipe A

Joint pipe B

Cable tie

—

(This book)

For connecting gas pipe (Straight type)

For connecting gas pipe (L type)

For binding power cable and transmission cable

ABOUT THE UNIT2.

Precautions for using the 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 composition 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 (R22) gauge. To prevent erroneous mixing of other

Gauge manifold

Charging hose

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.

Combinations2. 4.

A maximum of 3 outdoor units can be connected to 1 refrigerant system. The combination of outdoor units per refrigerant system and the number of indoor units that can be connected are as follows:

Outdoor Unit

Model Name Nominal System Capacity (HP)

A72LALH 8

AJ AJ

A90LALH 10

108LALH 12

126LALH 14 144LALH 16

Installation space combination

Combination (HP) 8 10121416182022242628

Outdoor Unit 1 (HP) 8 10121416101212121416 Outdoor Unit 2 (HP) –––––8810121212

Outdoor Unit 3 (HP) –––––––––––

Maximum Connectable Indoor Unit

Combination (HP) 30 32 34 36 38 40 42 44 46 48

Outdoor Unit 1 (HP) 16 16 12 12 14 16 16 16 16 16 Outdoor Unit 2 (HP) 14 16 12 12 12 12 14 16 16 16

Outdoor Unit 3 (HP) – – 10 12 12 12 12 12 14 16

Maximum Connectable Indoor Unit

When connecting outdoor units, install the outdoor unit with the largest nominal system capacity nearest to the refrigerant pipe and indoor unit, followed by those with lesser nominal system capacities. (Outdoor unit 1 ≥ Outdoor unit 2 ≥ Outdoor unit 3)

15 16 17 21 24 32 32 32 35 39 42

45 48 48 48 48 48 48 48 48 48

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Page 4

Energy-saving combination

Combination (HP) 8 10121416182022242628

Outdoor Unit 1 (HP) ––––8––1481012 Outdoor Unit 2 (HP) ––––8––8888

Outdoor Unit 3 (HP) ––––––––888

Maximum Connectable Indoor Unit

Combination (HP) 30 32 34 36 38 40 42 44 46 48

Outdoor Unit 1 (HP) 14 12 14 14 – 14 14 16 – – Outdoor Unit 2 (HP) 8 12 12 14 – 14 14 14 – –

Outdoor Unit 3 (HP) 8888–121414––

Maximum Connectable Indoor Unit

* Means that the energy-saving combination is unavailable. When connecting outdoor units, install the outdoor unit with the largest nominal system capacity nearest to the refrigerant pipe and indoor unit, followed by those with lesser nominal system capacities. (Outdoor unit 1 ≥ Outdoor unit 2 ≥ Outdoor unit 3)

* * * * 30 * * 33 36 39 42

45 48 48 48 * 48 48 48 * *

Optional parts2. 5.

CAUTION

The following parts are optional parts speciﬁ c to R410A refrigerant. Do not use parts other than those listed below.

Outdoor unit branch kit2. 5. 1.

Model Total cooling capacity of indoor unit (kW)

UTP-CX567A, UTR-CP567X ALL

CAUTION

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 processing3. 2.

The drain water is discharged from the bottom of the equipment. Construct a drain • ditch around the base and discharge the drain water properly. When installing on a roof, perform ﬂ oor waterprooﬁ ng properly.•

Drain processing:

The drain water from the base of the outdoor unit may generate during operations.•

Perform drain processing, as necessary.

When you want to prevent the drain water from leaking at the perimeter, construct • a ditch for the drain water as shown in the ﬁ gure.

Provide a central drain pan, as necessary.•

Outdoor unit

50mm or more

Separation tube2. 5. 2.

Model Total cooling capacity of indoor unit (kW) UTP-AX090A , UTR-BP090X 28.0 or less UTP-AX180A , UTR-BP180X 28.1 to 56.0 UTP-AX567A , UTR-BP567X 56.1 or more

Header2. 5. 3.

3-6 branches 3-8 branches Total cooling capacity of indoor unit (kW) UTR-H0906L UTR-H0908L 28.0 or less UTR-H1806L UTR-H1808L 28.1 to 56.0

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 (m3) If the results of the calculation exceed the concentration limit, increase the room surface area or install a ventilation duct.

≤

Refrigerant concentration (kg/m3) (0.3kg/m3)

CAUTION

Select an installation location by observing the following precautions:

Install the unit level. (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.

10mm or more

Installation dimensions3. 3.

CAUTION

When installing the outdoor unit, pay attention to the following items.

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.

Do not place obstructions in the air ﬂ ow outlet direction. If there is an obstruction in the outlet direction, install an outlet duct.

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 left side of the unit, provide a space of 30mm or more as maintenance space.

An outdoor temperature of 35 degrees in air-conditioned operation is assumed for the installation space in this item. If the outdoor temperature exceeds 35 degrees 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.

When install near by limited height wall3. 3. 1.

Single and multiple installations(1)

There are no restrictions on the height of the side wall.• Provide installation spaces L1 and L2 in accordance with the table below according • to the wall height (front side, rear side) conditions. Provide installation spaces other than L1 and L2 in accordance with the conditions • shown in the ﬁ gure below. Ventilation resistance can be ignorable when the distance from a wall or product, • etc. is larger than 2m.

Wall height condition Necessary installation space

When H1 is 1500 (mm) or less L1 ≥ 500 (mm)

When H1 is 1500 (mm) or more L1 ≥ 500+h1÷2 (mm)

When H2 is 500 (mm) or less L2 ≥ 100 (mm)

When H2 is 500 (mm) or more L2 ≥ 100+h2÷2 (mm)

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Page 5

1Fig.

J

6 Fig.

*



Wall

2 Single installationFig.

<Front>

3 Multiple installationsFig.

<Rear>

<Front>

30mm or more

Concentrated installation(2) Provide installation spaces L3, L4, and L5 in accordance with the table below ac-• cording to the wall height (front side, rear side) conditions. Provide installation spaces other than L3, L4, and L5 in accordance with the condi-• tions shown in the ﬁ gure below. Ventilation resistance can be ignorable when the distance from a wall or product, • etc. is larger than 2m.

Wall height condition Necessary installation space

When H3 is 1500 (mm) or less L3 ≥ 500 (mm)

When H3 is 1500 (mm) or more L3 ≥ 500+h3÷2 (mm)

When H4 is 500 (mm) or less L4 ≥ 200 (mm)

When H4 is 500 (mm) or more L4 ≥ 200+h4÷2 (mm)

When H5 is 500 (mm) or less L5 ≥ 200 (mm)

When H5 is 500 (mm) or more L5 ≥ 200+h5÷2 (mm)

4Fig.

<Front>

.

<Rear>

30mm or more 10mm or more

.

.

20mm or more

.

.

20mm or more

J



Wall

<Rear>

*

10mm or more

J

*



.

Wall

5 Fig.

J

*



.

Wall

800mm or more

20mm or more

7 Fig.

20mm or

20mm or more

20mm or more

L5L5

500mm or more

1000mm or more

When install near unlimited height wall3. 3. 2.

Single and multiple installations(1)

There are no restrictions on the height of the wall.• The wall (without height restrictions) must not exist on the both sides (left / right) • of outdoor unit. Also, must not exist on the both sides (front / rear) of outdoor unit. Provide installation spaces other than L6 in accordance with the conditions • shown in the ﬁ gure below. Ventilation resistance can be ignorable when the distance from a wall or prod-• uct, etc. is larger than 2 m.

When installing with the REAR of the outdoor unit facing the wall side

Condition Necessary installation space

When B ≥ 400 (mm) L6 ≥ 200 (mm)

When 20 ≤ B < 400 (mm) L6 ≥ 200 + (400-B) ×3 (mm)

8 Single installationFig.

<Rear>

<Front>

9 MFig. ultiple installations

<Rear>

200mm or more

100mm or more

500

Wall Wall

500

<Front>

200mm or more

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Page 6

800mm or more

200mm or more

When installing with the FRONT of the outdoor unit facing the wall side

10 Fig.

11 Fig.

Wall

200mm or more

Concentrated Installation(2) The wall (without height restrictions) must not exist on the both sides (left / right) of • outdoor unit. Also, must not exist on the both sides (front / rear) of outdoor unit. Ventilation resistance can be ignorable when the distance from a wall or product, • etc. is larger than 2m.

12 Fig.

200mm 200mm

Example : When B is made 200mm L6 ≥ 200+(400-200)×3=800mm

Wall

200mm or more

20mm or more

20mm or more

Wall

500mm or more

Wall

500mm or more

400mm or more

800mm or more

When there are obstacles above the product3. 3. 3.

When there are obstacles above the product, keep the minimum installation height as shown in the ﬁ gure and install the outlet duct. When installing the outlet duct, you must set the high static pressure mode with the push-button switch. (Similar when installing anti-snow hood)

Setting high static pressure mode

Follow the instructions in the table below to set the high static pressure mode.

Condition

Static Pressure (SP) *1 : 0 ≤ SP ≤ 30 (Pa)

Static Pressure (SP) 30 < SP ≤ 80 (Pa)

Static pressure is the air ﬂ ow resistance that includes *1. the discharge duct resistance & the other additional resistance like discharge grill and so on. Refer to the section on Push Switch Setting in “Chapter 7 Field Setting”.*2.

High static pressure mode

setting

Set to Mode 1

Set to Mode 2

Outlet duct

Transportation the outdoor unit3. 4.

Product mass (kg)

A72LALH 220

□

A90LALH 220

□

108LALH 275

□

126LALH 303

□

144LALH 303

□

Hoisting method

When hanging the outdoor unit and conveying it to installation location, hang the • unit with rope by passing through the 4 opening holes on bottom of front and rear side as shown in ﬁ gure. Use 2 ropes at least 8m long. If used shorter length, it may cause to damage to the • unit

. Use the sufﬁ ciently strong rope to bear the unit’s weight.• Place the protective board or ﬁ ller cloth at the place where the cabinet may come • into contact with rope to prevent from damages. Without using them, cabinet may cause to damage or deform. During the hanging unit, make sure to keep the unit level to prevent from falling.• To prevent an unit swing accident or falling down of the unit, do not apply any • impact to the unit when it is hanging.

500mm or more

1000mm or more

13Fig.

1000mm or more

400mm or more

400mm or more

800mm or more

400mm or more

500mm or more

1000mm or more

protective boards

opening space

Lifting by forklift

When using the forklift to lift the unit, pass the forklift arms through the opening • space as shown in below.

Front : Bottom of the wooden delivery pallet. Side : Space between pallet and cabinet. (Enable to remove the pallet from cabinet.)

Be careful not to damaged.•

Lifting by forklift (Manual forklift: hand-fork)

When using the manual forklift to lift the unit, pass the forklift arms through to the • opening space between pallet and cabinet from side.

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Page 7

SYSTEM CONFIGURATION4.

System conﬁ guration4. 1.

<Front>

Fork (Forklift)

Delivery pallet

<Side>

Fork (Forklift) or Fork (Manual forklift)

Installation the unit3. 5.

Install the unit level. (within 3 degrees).• Install 4 or more anchor bolts at the 8 locations indicated by arrows (Fig. A).• Place the left and right anchor bolts at a distance further away than the dimensions • of A in the Table A. (Excluding the case where anchor bolts are installed at 8 places.)

AFig.

Hole: 12 × 17 (8 places)

Table.A

Model name A B

A72LALH 610 930

□

A90LALH 610 930

□

108LALH 610 930

□

126LALH 920 1240

□

144LALH 920 1240

□

To minimize vibration, do not install the outdoor unit directly on the ground.• Instead, install it on top of a ﬁ rm platform (such as concrete block). (Fig. B) The foundation base should be able to support the product and the foot width of • the product should be more than 46.5mm. Depending on the installation condition, vibration during the operation of the unit • may cause noise and vibration. Install vibration-prooﬁ ng materials (such as rubber pads). Consider the removal space of the connection piping when installing the founda-• tion. Secure the equipment ﬁ rmly with anchor bolts, washers, and nuts.•

BFig.

GOODPROHIBITED GOOD

B A

Bottom view

(Unit: mm)

160160

732

Bolt (M10)

765

CAUTION

When connecting multiple outdoor units, set the nearest outdoor unit to the indoor • unit on the refrigerant pipe as the master unit. When connecting multiple outdoor units, install the outdoor unit with the largest • nominal system capacity nearest to the indoor unit on the refrigerant pipe, followed by those with less nominal system capacities.

[Capacity: Master ≥ Slave]

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.

In case of 1 outdoor unit connected A)

A Fig.

I.U.

I.U. I.U. I.U.

Allowable pip length (actual pipe length)•

Between master outdoor unit and the farthest indoor unit

Between the ﬁ rst separation tube and the farthest indoor unit

Total pipe length 700 m or less Total

Allowable height difference•

Between outdoor unit and indoor unit (When indoor unit is installed below)

Between outdoor unit and indoor unit (When outdoor unit is installed below)

Between indoor units 15 m or less H2, H3

Total refrigerant amount : 31.5 kg or less•

In case of 2 outdoor units connected B)

B Fig.

O.U.-1

(Master)

I.U.

O.U.

(Master)

O.U. :Outdoor unit

O.U.-2

(Slave)

I.U. :Indoor unit

O.U. :Outdoor unit I.U. :Indoor unit

I.U.

I.U. I.U.

150 m or less

60 m or less f, p

50 m or less

40 m or less

I.U. I.U. I.U. I.U.

I.U.

a+p

a+f

*Do not use a four-corner support foundation.

CFig.

When installing piping from the bottom of the outdoor units, the required space under the outdoor unit ≥ 200mm. * Install the branch

kit horizontally.

More than 200mm

I.U.

a+e+f

a+e+p

I.U.

Allowable pip length (actual pipe length)•

Between master outdoor unit and the farthest indoor unit

Between the ﬁ rst separation tube and the farthest indoor unit

Total pipe length 1000 m or less Total

Between outdoor unit and outdoor unit branch kit

150 m or less

60 m or less f, p

3 m or less a, b

En-6

Page 8

Allowable height difference•

Between outdoor unit and indoor unit (When indoor unit is installed below)

Between outdoor unit and indoor unit (When outdoor unit is installed below)

50 m or less

40 m or less

Between indoor units 15 m or less H2, H3

Between outdoor units 0.5 m or less H4

Total refrigerant amount : 63 kg or less• Outdoor unit capacity : Master ≥ Slave•

In the case of 3 outdoor units connected C)

CFig.

O.U.-3

O.U.-1

(Master)

O.U.-2

(Slave1)

(Slave2)

O.U. :Outdoor unit I.U. :Indoor unit

Allowable pip length (actual pipe length)•

Between master outdoor unit and the farthest indoor unit

Between the ﬁ rst separation tube and the farthest indoor unit

150 m or less

60 m or less f, p

a+e+f

a+e+p

Total pipe length 1000 m or less Total

Between outdoor unit and outdoor unit branch kit

Between the farthest outdoor unit and the ﬁ rst outdoor unit branch kit

3 m or less a, b, c

12 m or less

b+d c+d

Allowable height difference•

Between outdoor unit and indoor unit (When indoor unit is installed below)

Between outdoor unit and indoor unit (When outdoor unit is installed below)

50 m or less

40 m or less

Between indoor units 15 m or less H2, H3

Between outdoor units 0.5 m or less H4

Total refrigerant amount : 94.5 kg or less• Outdoor unit capacity : Master ≥ Slave 1 ≥ Slave 2•

If the outdoor temperature during cooling operation is expected to be –5 °C

• NOTE) or less, do not install the outdoor unit lower than the indoor unit

• Please refer to “8.3.2. Checking total amount of refrigerant and calculating the amount of refrigerant charge to be added” for the total amount of refrigerant.

(Wall thickness and pipe material for each diameter)

Outside Diameter mm 6.35 9.52 12.70 15.88 19.05 22.22 28.58 34.92 41.27

Wall Thick ness*3mm 0.8 0.8 0.8 1.0 1.2 1.0 1.0 1.2 1.43

Material

Allowable tensile stress ≥ 33 (N/mm*1. Allowable tensile stress ≥ 61 (N/mm*2. Endurance pressure of the pipes 4.2MPa*3.

Please select the pipe size in accordance with local rules.

JIS H3300 C1220T-O or equiva-

COPPER

lent

)

JIS H3300 C1220T-H or

COPPER

equivalent

A (Between outdoor unit and outdoor unit branch kit)Tab le.

Outdoor unit cooling

capacity (kW)

8 10 12 14 16

22.4 12.70 (1/2") 22.22 (7/8")

28.0 12.70 (1/2") 22.22 (7/8")

33.5 12.70 (1/2") 28.58 (1-1/8")

40.0 12.70 (1/2") 28.58 (1-1/8")

45.0 12.70 (1/2") 28.58 (1-1/8")

Outside diameter (mm)

Liquid pipe Gas pipe

Branch kit

UTP-DX567A, UTR-CP567X

For the installation method, refer to “5.4. Multiple connections”.*4.

B (Between outdoor unit branch kits or outdoor unit branch kit and Table.

ﬁ rst separation tube)

Tot al co oling ca pa ci ty

of outdoor unit (kW)

Outside diameter (mm)

Liquid pipe Gas pipe

22.4 to 28.0 12.70 (1/2") 22.22 (7/8")

28.1 to 45.0 12.70 (1/2") 28.58 (1-1/8")

45.1 to 56.0 15.88 (5/8") 28.58 (1-1/8")

56.1 to 80.0 15.88 (5/8") 34.92 (1-3/8")

80.1 to 96.0 19.05 (3/4") 34.92 (1-3/8")

96.1 or more 19.05 (3/4") 41.27 (1-5/8")

C (Between separation tubes)Tab le.

Total cooling capacity

of indoor unit (kW)

Outside diameter (mm)

Liquid pipe Gas pipe

4.4 to 11.1 9.52 (3/8") 15.88 (5/8")

11.2 to 13.9 9.52 (3/8") 19.05 (3/4")

14.0 to 28.0 12.70 (1/2") 22.22 (7/8")

28.1 to 44.7 12.70 (1/2") 28.58 (1-1/8")

44.8 to 56.0 15.88 (5/8") 28.58 (1-1/8")

56.1 to 80.0 15.88 (5/8") 34.92 (1-3/8")

80.1 to 95.0 19.05 (3/4") 34.92 (1-3/8")

95.1 or more 19.05 (3/4") 41.27 (1-5/8")

* If the selected pipe diameter between separation tubes (based on table "C") becomes

larger than the pipe diameter between outdoor unit branch kit and the ﬁ rst separation tube (based on table "B"), please select the pipe whose diameter is equal to the one between outdoor unit branch kit and the ﬁ rst separation tube.

(If pipe diameter C > 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.

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.

unit

Slave

unit1

Indoor

unit

Slave

unit2

Separation tube (optional)

Indoor

unit

Indoor

unit

Master

First separation tube (optional)

Indoor

unit

Outdoor unit branch kit (optional)

Indoor

En-7

Pipe size (table A)

Pipe size (table B)

Pipe size (table C)

Pipe size (table D)

D (Between separation tube to indoor unitTab le.

Model code

Cooling capacity of

indoor unit (kW)

)

Outside diameter mm (in)

Liquid pipe Gas pipe

07, 09, 12, 14 2.2, 2.8, 3.6, 4.0, 4.5 6.35 (1/4") 12.70 (1/2")

18, 24, 30 5.6, 7.1, 8.0, 9.0 9.52 (3/8") 15.88 (5/8")

36, 45, 54, 60 11.2, 12.5, 14.0, 18.0 9.52 (3/8") 19.05 (3/4")

72, 90 22.4, 25.0 12.70 (1/2") 22.22 (7/8")

Use a standard separation tube for pipe branching. Do not use a T tube as it does not separate the refrigerant evenly.

E (Separation tube / Header)Tabl e.

Separation tube•

Total cooling capacity of indoor unit (kW) Separation tube

28.0 or less UTP-AX090A or UTR-BP090X

28.1 to 56.0 UTP-AX180A or UTR-BP180X

56.1 or more UTP-AX567A or UTR-BP567X

Page 9

Header•

Total cooling capacity of indoor unit (kW)

Header

3-6 Branches 3-8 Branches

28.0 or less UTR-H0906L UTR-H0908L

28.1 to 56.0 UTR-H1806L UTR-H1808L

For the installation method, refer to the section on "Indoor unit pipe connections" *5. below.

Protection of pipes4. 3.

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.

Location Working period

Outdoor

Indoor

1 month or more Pinch pipes

Less than 1 month Pinch or tape pipes

—

Protection method

Pinch or tape pipes

PIPE INSTALLATION5.

Brazing5. 1.

CAUTION

If air or different 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.

Apply nitrogen gas while brazing the pipes. Nitrogen gas pressure: 0.02 MPa (= sufﬁ cient pressure to be felt on the back of your hand or more)

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. In addition, if the ﬂ ux contains ﬂ uoride, it will affect the refrigerant piping system due to deterioration of refrigerant oil.

For brazing material, use phosphor copper that does not require ﬂ ux.

Fig.

Pressure regulating valve Cap

Nitrogen gas

Brazing area

Header

Gas pipe

Outdoor unit side

Liquid pipe Outdoor

unit side

= 0 to 10 mm

(α1: 0° to 1°) β1: -10° to 10°

= 0 to 10 mm

(α2: 0° to 1°) β2: -10° to 10°

Horizontal line

Vertical line

GOOD

Horizontal line

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

0.5 m or more

To in do or u ni t

0.5 m or more

To in do or u ni t

0.5 m or more

Separation tube

Header

To in do or u ni t

Separation tube

Header

To in do or unit

VIEW C

VIEW D

To in do or unit

Horizontal line

Indoor unit pipe connections5. 2.

CAUTION

For details, refer to the Installation Instruction Sheet of each part.

Separation tube

Horizontal

± 15°

Horizontal line

GOOD

A : Outdoor unit or Refrigerant branch kit B : Indoor unit or Refrigerant branch kit

PROHIBITED

Vertic al

To in do or u ni t

Piping method5. 3.

Opening the knockout hole5. 3. 1.

Be careful to prevent panel deformation or damaged while opening the knockout hole.

To prevent cutting of the wiring after the knockout hole was opened, remove the burrs along the edge.

In addition, to prevent rusting, painting the edge with rust preventive paint is recom-

mended.

The piping can be connected from 2 directions; the front or the bottom. (Knockout holes are provided so that the piping can be connected from 2 different directions.) Use the front knockout hole, as required.

A Knockout positionFig.

CAUTION

En-8

Page 10

B Detail of knockout position (bottom)Fig.

(Unit: mm)

Knockout hole

After all the gas is vented, melt the brazing ﬁ ller metal on connecting part using a 3) torch and remove the pinch pipe.

C Detail of knockout position (front)Fig.

100

(Unit: mm)

Knockout hole

125

4373199

Removing the pinch pipe5. 3. 2.

WARNING

Remove the pinch pipe only when the internal gas is completely drained as shown on the below instructions. If gas still remains inside, the piping may crack if you melt the brazing ﬁ ller metal of the junction area with a burner.

Before connecting the piping, remove the pinch pipe in accordance with the following instructions:

Verify that the liquid side and gas side 3-way valves are closed. 1)

3-way valve

Pinch pipe

Pipe connection5. 3. 3.

CAUTION

Seal the pipe route hole with putty (ﬁ eld supply) such that there are no gaps. Small insects or animals that are trapped in the outdoor unit may cause a short circuit in the electrical component box.

To prevent pipe damage; do not make sharp bends. Bend the pipe at a radius of 70mm or greater.

Do not bent pipe many times at same part to prevent break.

After completing all the pipe connection by brazing, perform the indoor unit pipe connection with a ﬂ are joint.

When removing the pinch pipe or brazing the joint pipe, carry out the work while cooling down the 3-way valve sufﬁ ciently.

Braze the joint pipe onto the 3-way valves at the liquid and gas side.• Install the joint pipe appropriately so that it can be connected easily with the main pipe. Braze the joint pipe at the liquid and gas side with the main pipe.• * Be sure to supply nitrogen when brazing.

AFig.

Joint pipe (Accessory)

Joint pipe (Field supply)

Liquid pipe

(Field supply)

BFig.

Knockout hole

Gas pipe (Field supply)

To in do or u ni t

Cut the end of the liquid side and gas side pinch pipe and vent the gas inside the 2) pinch pipe.

End of pinch pipe

En-9

Joint pipe

(Field supply)

Multiple connections5. 4.

CAUTION

When connecting multiple (maximum 3) units, be sure to install the unit with the •

largest capacity nearest to the indoor unit.

For example) AJ

When connecting multiple units, set the unit with the largest capacity as the master •

unit, and the rest as the slave units.

(Refer to 7. Field Setting)

When connecting multiple units, use the optional outdoor unit branch kit.•

126LALH (Outdoor Unit1) + AJ 126LALH (Outdoor Unit2) +

A90LALH (Outdoor Unit3)

Joint pipe (Accessory)

Knockout hole

Page 11

To in do or u ni t

Outdoor unit 1

(Master unit)

Outdoor Capacity 2 Units : Unit 1 ≥ Unit 2 3 Units : Unit 1 ≥ Unit 2 ≥ Unit 3

Outdoor unit 2

(Slave unit 1)

Outdoor unit 3

(Slave unit 2)

CAUTION

To prevent the oil from settling in the stopped unit, install the pipes between the outdoor units so that they are level or are tilted upward to the outdoor units.

Examples of multiple unit installation are shown below.(1) Installable patterns a)

GOOD

Master

unit

Slave unit 1

Slave

unit 2

Outdoor unit branch kit (Optional)

To in do or u ni t (To main pipe)

To ou td oor un it

Branch kit restriction when install

Be sure following restriction.

Installation angle 1)

Outdoor unit branch kit

Horizontal

To in do or u ni t

PROHIBITED

GOOD:

0° to -10°

PROHIBITED

Vert ical

PROHIBITED PROHIBITED PROHIBITED

Install the outdoor unit branch kit horizontally level, within 0° to -10°, so that the • refrigerant separates evenly. Do not install the outdoor unit branch kit vertically.•

Straight pipe length 2)

To in do or u ni t (To main pipe)

To indoor unit (To main pipe)

Leave the distance 0.5 m or more for straight part to outdoor unit branch kit.•

For details, refer to the Installation Instruction Sheet of the outdoor unit branch kit. 3)

Examples of multiple unit installationFig.

(Example 1)

Master unit Slave unit1 Slave unit2

(Example 2)

Master unit Slave unit1 Slave unit2

0.5 m or more

Liquid pipe (Field supply)

To ou td oor un it

To outdoor unit or

next branch kit

To ou td oor un it

(Example 3)

Master unit

Slave unit1

Slave unit2

Joint pipe (Accessory)

Gas pipe (Field supply)

PROHIBITED

GOOD:

0° to -10°

PROHIBITED

To ou td oor un it

To ou td oor unit

To in do or u ni t

GOOD

To in do or u ni t

GOOD

To in do or u ni t

Non-installable patterns b)

PROHIBITED

To in do or u ni t

PROHIBITED

To in do or u ni t

PROHIBITED

To in do or u ni t

If the pipe length between outdoor unit branch kit and outdoor unit branch kit (2) (or slave unit) is longer than 2 m, or a lower pipe line exists between outdoor units, rise for gas pipe should be arranged to eliminate oil from entering into and remaining at pipes and the stopped outdoor unit. However, there is no need to provide a rise on the pipe connecting between the master unit and the indoor unit even if the length exceeds 2m.

To in do or u ni t

Master

unit

Master

unit

Master

unit

Master

unit

Master

unit

Master

unit

Master

unit

Master

unit

Slave unit 1

2 m or less 2 m or less

2 m or more 2 m or more

Slave unit 1

2 m or less2 m or less

Slave unit1

Slave

unit 1

Slave unit 1

Slave

unit1

Rise

lower pipe

Slave unit 2

Gas pipe

Rise

(200 mm or more)

Slave

unit2

500 mm or less

Gas pipe

Slave

unit2

Gas pipe

En-10

Page 12

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, 400V of 3-phase, 4-wire. Use a voltage within the range of 342-456V.

Make sure to perform earthing (grounding) work. Improper earthing (grounding) work can cause electric shocks.

Before connecting the cables, make sure the power supply is OFF.

Be sure to install an earth (ground) leakage breaker. Otherwise, it will cause electric shock or ﬁ re.

Be sure to install a breaker of the speciﬁ ed capacity. When selecting breaker, please comply with the laws and the regulations of each country. One breaker must be installed on the power supply of the outdoor unit. Wrong selection and setup of the breaker will cause electric shock or ﬁ re.

Do not connect AC power supply to the transmission line terminal board. Improper wiring can damage the entire system.

Connect the connector cord securely to the terminal. Faulty installation can cause a ﬁ re.

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.

Make sure to secure the insulation portion of the connector cable with the cord clamp. A damaged insulation can cause a short circuit.

Never install a power factor improvement condenser. Instead of improving the power factor, the condenser may overheat.

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.

Always use a separate power supply line protected by a circuit breaker operating on all cables with a distance between contact of 3 mm for this unit.

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.

If the supply cable is damaged, it must be replaced by the manufacturer, its service agent or similarly qualiﬁ ed persons in order to avoid a hazard.

CAUTION

The primary power supply capacity is for the air conditioner itself, and does not include the concurrent use of other devices.

Connect the power cables in positive phase sequence. If they are connected in negative phase sequence, an error will be displayed. If there is a missing phase connection, the unit will not operate normally. Do not connect a N phase (neutral phase) cable to other phases (misconnection). Wrong wiring will lead to parts damage.

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. If the temperature surrounding the breaker is too high, the amperage at which the breaker cuts out may decrease.

Use a breaker (Included with earth leakage circuit breaker) that is capable of handling high frequencies. Because the outdoor unit is inverter controlled, a high-frequency breaker is necessary to prevent a malfunction of the breaker 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 earthing (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.

Wiring method6. 2.

The wiring example for outdoor units and indoor units is shown in the ﬁ gure.

To other refrigerant cricuit outdoor unit

Power supply

400V 3Ø 50Hz

Outdoor unit 1 (Master unit)

Transmission Transmission Transmission

Power supply

Breaker Breaker Breaker

Power supply 230V 1Ø 50Hz

*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: Earth (Ground) the remote controller if it has an earth (ground) cable.

There are two types of remote controller: the 2-wire type and the 3-wire type. For • details, see the relevant remote controller installation manual. (When connecting the 2-wire type remote controller, Y3 is not used.)

Remote control Remote control Remote control

*2 *2 *2

Remote

controller

Power supply

400V 3Ø 50Hz

Power supplyPower supply

Outdoor unit 2 (Slave unit 1)

Power supply Power supply

*1 *1

Remote

Power supply 230V 1Ø 50Hz

controller

Power supply

400V 3Ø 50Hz

Breaker Breaker Breaker

Power supply

Outdoor unit 3

(Slave unit 1)

TransmissionTransmissionTransmission

Indoor unitIndoor unitIndoor unit

Power supply 230V 1Ø 50Hz

Remote

controller

Knockout hole6. 3.

CAUTION

Seal the wiring route hole with putty (ﬁ eld supply) such that there are no gaps. Small insects or animals that are trapped in the outdoor unit may cause a short circuit in the electrical component box.

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.

Electric wires can be connected from the front or from the left. (Knockout holes are prepared so that wiring can be made from 2 different directions.) Use the knockout holes on the front and the left separately when necessary.

En-11

Page 13

In case of connected 3 outdoor unitFig.

GOOD

Sub

Main breaker

400 V 3ø 50 Hz

breaker

< Left view >

Ø 50

Ø 34.5

Ø 43.7

Ø 22.2

< Front view >

Ø 50

Ø 34.5

Ø 22.2

Ø 43.7

(Unit: mm)

Selecting power supply cable and breaker6. 4.

CAUTION

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.

Regulation of wire 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

Selecting power supply cable and breaker when connecting 1 outdoor unit(1)

MODEL

A72LALH 30

A90LALH 30

AJ AJ

108LALH 50 126LALH 50

144LALH 50

MODEL

A72LALH 4 4 30

AJ AJ

A90LALH 4 4 30

108LALH 10 6 42

126LALH 10 6 42

144LALH 10 6 42

These values are recommended data. 1) Speciﬁ cation: Use conformed cord with Type 60245 IEC66 2) Max. wire length: Set a length so that the voltage drop is less than 2%. Increase 3) the wire diameter when the wire length is long.

In case of connected outdoor unitFig.

Transmission cable

GOOD

400 V 3ø 50 Hz

Breaker

Outdoor unit Power supply cable

Selecting main breaker and main power supply cable when connecting multiple (2) outdoor units

Main breaker: Main breaker ≥ Total Sub breaker sub breaker capacity)

Breaker (Time delay fuse or circuit capacity)

Fuse capacity (A) Leakage current

100mA

0.1sec or less

Outdoor unit power supply cable

Power supply

cable (mm

Ground wire (mm2)

)

230 V 1ø 50 Hz

(Refer to the table in item (1) for the

Critical wiring

Indoor unit Power supply cable

Breaker

Remote controller cable

length (m)

Outdoor unit power supply cable

Example of bad breaker wiring(3)

PROHIBITED

400 V 3ø 50 Hz

Outdoor unit Breaker PROHIBITED: install a breaker for each outdoor unit

Power supply cable

PROHIBITED: crossover

power supply wiring prohibited

Transmission line6. 5.

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

PROHIBITED

Shorted at edge

PROHIBITED PROHIBITED

Wires twisted

PROHIBITED

Shorted at root

Transmission wiring speciﬁ cations6. 5. 1.

Follow the speciﬁ cations below for the transmission cable.

Use Size Wire type Remarks

Transmission

cable

0.33mm

22AWG LEVEL 4 (NEMA)

non-polar 2core, twisted pair

solid core diameter 0.65mm

Wiring rules6. 5. 2.

(1) Total length of transmission cable

Total transmission line length : Max. 3,600 m

EF + EG + GH + HJ + HK + KL < 3,600 m (Fig.2)

In the following cases , Signal Ampliﬁ er is required.

When the total length of the transmission line exceeded 500 m.

①

AB + BC + BD > 500 m (Fig.1)

When the total number of units* is over 64.

②

Transmission line length between each unit* ≥

③

(2) Length of transmission cable between 1 network segment (NS)

EF + EG + GH + HJ + HK ≤ 500 m (Fig.2) KL ≤ 400 m (Fig.2)

(3) Length of transmission cable between outdoor units in a refrigerant system

MN ≤ 18 m NP ≤ 18 m

400m

1 wire

GOOD

2 wires

GOOD

LONWORKS

patible cable

com-

En-12

Page 14

1Fig.

Terminal resistor

2Fig.

Outdoor unit

Indoor unit

When AB + BC + BD > 500 m : Signal Ampliﬁ er is required.

Outdoor unit

Terminal resistor

Transmission line

Indoor unit

Wiring procedure6. 6.

System

Controller

Tou c h Panel

Controller

NS 1

• Remove the cover of the electrical compartment and follow the terminal plate to connect the electric cables to the terminal.

• After connecting the cables, secure them with the cable ties.

• Connect the cables without applying excessive tension.

Cable routing

Secure with a binder as shown in the ﬁ gure below.

Connecting the power supply cable

Connecting the transmission cable

Transmission line

Signal Ampliﬁ er

NOTE)

Unit* means indoor unit, outdoor unit, Touch Panel Controller and System Controller, Signal Ampliﬁ er, single split adaptor, Network Convertor etc..

Do not use loop wiring. This may lead to parts damage and erroneous operation.

Terminal resistor

NS 2

Tou c h Panel Controller

System

Controller

Enabling/Disabling automatic address setting6. 5. 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

Transmission line

Cable tie (Accessory)

Cable guide

Cable clip

Cable tie * (Accessory)

Power supply cable routing

* Tighten the cable tie ﬁ rmly so that pulling force does not propagate to the terminal connection even if force of 100N is applied to the cable.

Transmission cable routing

Connecting cables to the terminals

WARNING

Use ring terminals and tighten the terminal screws to the speciﬁ ed torques, other- wise, abnormal overheating may be produced and possibly cause heavy damage inside the unit.

Be sure ﬁ ll the holes of power supply cable and transmission cable with putty (ﬁ eld supply). If small animals such as insects enter the electrical component box, a short circuit may be caused.

Tight ening to rque

M3 screw 0.5 to 0.6 N·m (5 to 6 kgf·cm)

M8 screw 5.0 to 7.0 N·m (50 to 70 kgf·cm)

Refrigerant system 2

Refrigerant system 3

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Transmission line

Page 15

(1) Connecting the power supply cable

Caution when wiring cable

1) Use crimp-type terminals with insulating sleeves as shown in the ﬁ gure to con- nect 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 being properly tightened.

5) Do not tighten the terminal screws too much, otherwise, the screws may break.

6) See the table for the terminal screw tightening torques.

Strip 10 mm

Ring terminal

Sleeve

Cable

Screw with special washer

Ring terminal

Screw with special washer

Ring terminal

Terminal block

Cable

External input and external output6. 7.

Terminal position6. 7. 1.

Base heater (CN115: Black)

Output 1 (CN136: Black)

Output 2 (CN137: Blue)

Input 4 (CN134: Red)

Input 3 (CN133: White)

Input 2 (CN132: Green)

Input 1 (CN131: Yellow)

Input 5 (CN135: Orange)

Ring terminal: M8

Earth (Ground) cable

Cable clamp

90 to 100 mm

70 to 80 mm

Use a ring terminal to connect the electric cables to the power supply terminal * board.

(2) Connecting the transmission cable

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 wires may snap and the terminal may be damaged.

Wind with insulation tape to prevent short circuit

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.

8 to 10 mm

Connect both ends of sealed cable to earth.

Outdoor unit PC board

CAUTION

Do not bundle the cable for base heater with other cables.

(Example) In case of Outdoor unit

Insert the connector to CN136 (Black) and CN137 (Blue) of control PC board. (1) Fix it to the wire with the attached cable tie.(2)

CN136 (Black)

CN115 (Black)

Clamp

Wire

▪ Do not clamp the base heater cable.

External input terminal6. 7. 2.

Service parts: EXTERNAL INPUT WIRE A (9368777005)

Setting to low noise mode, outdoor unit operation peak control setting, emergency/• batch stop and electricity meter pulse are possible from the outside. Except for wattmeter pulse reception (CN135) among external input terminals, only • the Master unit is effective.

Clamp

CN137 (Blue)

Cable tie (Accessory)

40 mm or more

Cable clip

Cable tie (Accessory)

Wiring method and speciﬁ cations

A twisted pair cable (0.33 mm* cable is 150 m. Use an external input and output cable with appropriate external dimension, de-* pending 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.*

(22AWG)) should be used. Maximum length of

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Page 16

Input 1 CN131

(Yellow)

P. C .B

connected unit connected unit

Operation behavior

Each input terminal works as follows.

Connector Input signal Status

Input 1 CN131 (Yellow)

Input 2 CN132 (Green) *1

Input 3 CN133 (White)

Input 4 CN134 (Red)

Input 5 CN135 (Orange) *4

Slave unit can connect only input5 (CN135).

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.

*2: Batch stop or Emergency stop pattern can be selected by outdoor unit PC

board push button.

*3: The emergency stop function mounted in the V-II does not guarantee the

regulations of each country. For this reason, sufﬁ cient 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.

CN132 (Green)

OFF Normal operation

ON Low noise mode operation

OFF Cooling priority

ON Heating priority

OFF Normal operation

No pulse

Pulse

Input 3Input 2

CN133 (White)

connected unit connected unit connected unit

Outdoor unit operation peak control

Batch stop or Emergency stop operation *2, *3

No information from electricity meter

Power usage information from electricity meter

Input 4 CN134

(Red)

Input 5

CN135 (Orange)

Outdoor unit

Master Slave



External output terminal6. 7. 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. The external output terminal is only valid for Master Unit.•

Wiring method and speciﬁ cations

Error status (Master unit only)

This output indicates the outdoor unit and connected indoor unit's "Normal" or "Error" status.

Operation status (Master unit only)

This output indicates the outdoor unit's "Operation" status.

Connector Output voltage Status

CN136 (Black)

CN137 (Blue)

0 V Normal DC 12 to 24 V Error 0 V Stop DC 12 to 24 V Operation

P. C .B

CN136 (Black) or CN137 (Blue)

5: Provide a DC12 to 24 V power supply. *

Select a power supply capacity with an ample surplus for the connected load.

6: The allowable current is 30 mA or less. *

Provide a load resistance such that the current becomes 30 mA or less.

7: Polarity is [+] for pin 1 and [-] for pin 2. Connect correctly.*

Do not impress a voltage exceeding 24 V across pins 1-2.

A twisted pair cable (0.33 mm* cable is 150 m. Use an external input and output cable with appropriate external dimension, de-* pending on the number of cables to be installed.

DC power supply (External) 12 to 24 V

+ -

Connected load (Operation Indicator or Error Indicator)

(AWG22)) should be used. Maximum length of

connected unit

Base heater terminal6. 7. 4.

Service parts : WIRE WITH CONNECTOR (9708642000)

This is the output signal for base heater. Output signal ON, when the outdoor tem-

perature goes down below 2°C, and signal OFF at the outdoor temperature 4°C.

P. C .B

CN115 (Black) *8

8: Connect to pin 1 and pin 3. No connection pin 2 and pin 4.* 9: The allowable current is 1 A or less.*

AC240 V

(For rated 415 V power supply)

(0.82 mm

Cable

(18AWG))

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 board.

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 indicators are shown in the ﬁ gure.

DIP switch setting7. 2.

List of Settings7. 2. 1.

SET3 and SET5 must be set for the DIP switch. Conﬁ gure the settings before turning on the power. Settings for SET1, SET2, and SET4 DIP switches are factory default ones. Do not change them.

DIP Switch Function

SET1 1-4 Forbidden

SET2 1-4 Forbidden

SET3

SET4 1-4 Forbidden

SET5

1-2 Number of outdoor units installed

3 Forbidden

4 Terminal resistor setting

Outdoor unit address setting

Setting for number of slave units

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Page 17

LED lamp

7 Segment LED indicator

Rotary switch

X 10 X 1

Conﬁ gure the setting (DIP switch SET5) of the terminal resistor of the outdoor units as shown below from conditions 1 to 3.

SET5

OFF Disable (Factory setting)

ON Enable -

Terminal resistor Remarks

Push button

Outdoor unit PC board

DIP switch

5'6

Settings to be conﬁ gured locally7. 2. 2.

Outdoor unit address setting(1) When 2 or 3 outdoor units are installed to 1 refrigerant system, set the address for each outdoor unit. Set the address for all outdoor units.

SET3

OFF OFF 0 Master unit (Factory setting) OFF ON 1 Slave unit 1

ON OFF 2 Slave unit 2 ON ON - Forbidden

Nu(2) mber of slave units setting for outdoor unit Set the number of slave units connected to 1 refrigerant system. Set only the master unit.

SET3

34 OFF OFF 0 Master unit only (Factory setting) OFF ON 1 1 slave unit connected

ON OFF 2 2 slave unit connected ON ON - Forbidden

Number o(3) f outdoor units installed The number of outdoor units installed in 1 refrigerant system must be set. Set for all outdoor units.

SET5

12 OFF OFF 1 (Factory setting) OFF ON 2 -

ON OFF 3 ON ON - Forbidden

Outdoor unit address Remarks

Number of connectable

outdoor units

Number of outdoor units Remarks

Remarks

Terminal resistor setting7. 2. 3.

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.

Figure: Terminal resistor setting

Master unit

NS2 (Network segment 2)

About the setting of terminal resistor

Outdoor unit (Master unit)

:on

:off

Signal ampliﬁ er

Install

Do not install

NS1 (Network segment 1) (Set terminal resistor at outdoor units)

Terminal resistor: on

Refrigerant system1

Terminal resistor: off

Refrigerant system2

Refrigerant system3

NS3 (Network segment 3)

Terminal resister: on

NS4 (Network segment 4)

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 Switch Setting

Refrigerant circuit address

000 101 202 303 404

・・・・・・

97 9 7 98 9 8 99 9 9

REF AD

×10 ×1

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

Setting Setting range Type of switch

Refrigerant circuit

address

Rotary Switch (REF AD×1): Factory setting "0" Rotary Switch (REF AD×10): Factory setting "0"

0–99

Setting

example

REF AD × 10 REF AD × 1

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Page 18

Push button setting7. 4.

Various functions can be 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

Pipe length setting *1

Pipe length means the length between master outdoor unit and the nearest indoor unit.

Sequential start shift *1

The start-up timing of outdoor unit (compressor) can be set up so that it can delay several seconds. This feature is useful when multiple number of outdoor units are installed and turned on at the same time to limit the starting current.

Cooling capacity shift *1

Set this item when necessary.

Heating capacity shift *1

Set this item when necessary. (Forbidden) 1 3 0 0

Switching between batch stop or emergency stop

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 the indoor unit is turned on by the remote controller.

Operation mode selecting method *1

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.

Snow falling protection fan mode *1

This mode operates the fans of outdoor units in order to prevent the units from stopping operation when they are covered by snow.

Interval setting for snow falling protection fan

mode *1

When the snow falling protection fan mode is set, the operation interval of the fans of outdoor units can be selected.

Medium (65 to 90 m) 0 2

Long 1 (90 to 120 m) 0 3

Long 2 (120 to 150 m) 0 4

Normal 21 sec. Delay 0 1 42 sec. Delay 0 2 63 sec. Delay 0 3

Normal mode Save energy mode 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 command

Priority given to external input of outdoor unit

Priority given to administrative indoor unit

Normal mode Snow falling protection fan

mode

Standard (30 minutes) Short 1 (5 minutes) 0 1 Short 2 (10 minutes) 0 2 Short 3 (20 minutes) 0 3

7 segment LED indicator

First 2

Last 2 digits

digits

Factory

setting



Standard

High static pressure 1 High static pressure mode

When installing a duct to the blow-off outlet of an outdoor unit, set the high static pressure mode according to the static pressure of the duct to be installed. Furthermore, use this setting if the air blow of an outdoor unit is poor, such as when installed in a place with a low ceiling.

(Forbidden) 2 5 0 0

(Forbidden) 2 6 0 0

(Forbidden) 2 7 0 0

(Forbidden) 2 8 0 0

(Forbidden) 2 9 0 0

Energy saving level setting *1

The capacity limit can be selected by the external input terminal (CN133) when operating with the “Energy Saving Peak Cut function”. The lower the level, the more the effect of energy saving, but the cooling/heating performance will also drop.

Capacity priority setting (in low noise mode) *1

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).

Low noise mode setting *1

Low noise mode operation level

setting The noise level when operating in the low noise mode can be set.

Back up operation 1

Electricity meter No. setting 1 *2

Set the ones digit and tens digit of the No. of the electricity meter connected to CN135.

Electricity meter No. setting 2 *2

Set the hundreds digit of the No. of the electricity meter connected to CN135.

Electricity meter pulse setting 1 *3

Set the ones digit and tens digit of the No. of the electricity meter pulse setting connected to CN135.

(equivalent to 30Pa)

High static pressure 2

(equivalent to 80Pa)

(Forbidden) 0 3

Level 1 (stop) Level 2 (operated at 40%

capacity) Level 3 (operated at 60%

capacity) Level 4 (operated at 80%

capacity) Level 5 (operated at 100%

capacity)

Off (quiet priority)

On (capacity priority) 0 1

Off (Normal) On (Low noise mode) 0 1

Level 1 (55 dB)

Level 2 (50 dB) 0 1

On Off 0 1 Setting number (x00) Setting number (x01) 0 1

······ ··· ··· Setting number (x98) 9 8 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 (xx98) 9 8 Setting number (xx99) 9 9



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Page 19

Electricity meter pulse setting 2 *3

Setting number (00xx) Setting number (01xx) 0 1

······ ··· ···

Setting number (98xx) 9 8



Setting number (99xx) 9 9

Set the hundreds digit and thousands digit of the electricity meter pulse setting connected to CN135.

(Forbidden) 9 0 0 0

*1: Do not set this for outdoor units with Slave setting. *2: When electricity meter No. is set to “000” and “201 to 299”, the pulses input to CN135

become ineffective. Available setting number is "001" to "200"

*3: When the electricity meter pulse setting is set to “0000”, the pulses input to CN135

become ineffective. Available setting number is "0001" to "9999"

(1) Turn on the power of the outdoor unit and enter standby mode.

When system is normal•



POWER/MODE lamp lights up. (ERROR lamp is off.)

POWER/MODE lamp: ON

7 segment LED indicator: OFF

MODE/EXIT button

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).

7 segment LED indicator: "-" display

(2) Setting method

Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons to conﬁ gure settings accord-

ing to the procedures below. (If no setting is made, the factory default setting will be displayed.)

MODE/EXIT

SELECT

ENTER

POWER/MODE lamp: ON

: Press the “MODE/EXIT” button.

: Press the “SELECT” button.

: Press the “ENTER” button.

: Press the “ENTER” button for more than 3 seconds.

SELECT button

ERROR lamp: OFF

ENTER button

ERROR lamp: Blinking

1: FUNCTION Setting

First 2 digits

Every press of the “SELECT” button will change the setting number for the ﬁ rst 2 digits.

Last 2 digits

MODE/EXIT

SELECT

ENTER

2: Setting the

ﬁ rst 2 digits

SELECT

7 segment LED indicator (LED105, LED104)

(Flashing)

(When [F3] to [F9] are displayed, continue to press the “SELECT” button until [F2] is displayed.)

3: Setting the last 2 digits

Continue to press the “SELECT” button until the desired number appears at the

ENTER

MODE/EXIT

last 2 digits.

SELECT

ENTER

Setting is complete when the lamp lights up

Press “ENTER” button to return to “2. Setting the first 2 digits” (If there is no operation for 5 seconds after the setting, the indicator will return to “2: Setting the first 2 digits”.)

ENTER

MODE/EXIT

SELECT

MODE/EXIT

SELECT

(Continue to press the “SELECT” button until the desired number appears at the last 2 digits.)

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 indicator will return to “2: Setting the ﬁ rst 2 digits”.)

EXIT: Press the “MODE/EXIT” button to cancel the setting mode.

SELECT

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Page 20

Signalampliﬁeraddresssetting7.5.

Signal ampliﬁ er address setting7. 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 the next section “Fig. Wiring example for automatic address setting” for the wiring example. (For manual setting of address, refer to the signal ampliﬁ er installation manual.)

Procedures to enable automatic address setting 7. 5. 2. on signal ampliﬁ er

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 indicator.

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.

1: FUNCTION Setting

First 2 digits

Last 2 digits

MODE/EXIT

(The indicator when the main power is turned on)

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

Master unit

Refrigerant system2

Master unit

Refrigerant system3

Master unit

NOTE)

The automatic address function can be used for a maximum of 48 indoor units • 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 conﬁ gured 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.)

2 12 8 21 4 1 26 3

314256 8171128

(1) Signal ampliﬁ er

12 18 1 10 23 4 22 8 9

(1) Signal ampliﬁ er

(2)

(3)

(4)

SELECT

(When [F4] to [F9] are displayed, continue to press the “SELECT” button until [F3] is displayed.)

ENTER

Automatic address setting for signal amplifiers

SELECT

ENTER

MODE/EXIT

End

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

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 controller, refer to the remote

Automatic setting → • Check that the wiring is as shown in the ﬁ gure below.

the indoor unit installation manual.

controller installation manual.

Operate using the master outdoor unit of each refrigerant system.

Procedures to enable automatic address setting 7. 6. 2. on 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 LED indicator.

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.

1: FUNCTION Setting

First 2 digits

Last 2 digits

MODE/EXIT

SELECT

ENTER

Automatic address setting for indoor units

SELECT

ENTER

(The indicator when the main power is turned on)

(When [F4] to [F9] are displayed, continue to press the “SELECT” button until [F3] is displayed.)

Press the SELECT button until “11” is displayed.

Press the “ENTER” button for more than 3 seconds.

The number of indoor units with normal settings will be displayed at the ﬁ rst 2 digits of the 7 segment LED indicator. 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.

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End

Page 21

7. 7.

Resistance measurement of transmission cable (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 circuit board may be damaged.

Measure the resistance between 2 terminals of a transmission cable.

Transmission cable connecting indoor units, outdoor units, and signal (1) ampliﬁ 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 45-60Ω. This value is an estimate.

Fig. B

Val ve

Open

Cap

ATable.

Valv e t ype Sp indle Ca p Chargin g cap

Liquid

Gas

9.0 to 12.0 N·m (90 to 120 kgf·cm)

27.0 to 33.0 N·m (270 to 330 kgf·cm)

Charging cap

Spindle

Open

20.0 to 24.0 N·m (200 to 240 kgf·cm)

25.0 to 30.0 N·m (250 to 300 kgf·cm)

Hexagon wrench

12.5 to 16.0 N·m (125 to 160 kgf·cm)

Distance from termination resistor (m)

0 ~100 ~ 200 ~ 300 ~400 ~500

A short circuit somewhere or 2 or more termination

0 ~ 50

resistors are connected 50 60 70 80 90

100 110 120 130 140 150 160 170 180

190 ~ Faulty contact or wiring length over 500 m

Approximate resistance (Ω)

1K ~∞ Faulty contact, open circuit, or no termination resistor

PIPE INSTALLATION II8.

A Connection systemFig.

In case of connecting 1 outdoor unit A)

Outdoor unit

Pressure gauge

Pressure regulating valve

Nitrogen

Sealing test8. 1.

CAUTION

Use only nitrogen gas.• Never use refrigerant gas, oxygen, in ﬂ ammable gas or poisonous gas to pressur- ize the system. (If oxygen is used. There is danger of an explosion.)

Do not 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 charging of the • refrigerant gas have been completed.

After connecting the pipes, perform a sealing test. Recheck that the spindle of 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 did 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 brazing After completing the sealing test, release the nitrogen gas from both valves. Release the nitrogen gas slowly.

Vacuum process8. 2.

Indoor

unit

In case of connecting multiple outdoor units B)

Outdoor unit Outdoor unit

unit

Indoor unit

Vac cum pump

Indoor unit

Scale

Pressure regulating valve

Pressure gauge

Vac cum

Scale

pump

Nitrogen

CAUTION

Do not turn on the power unless all operations are complete.

If the system is not evacuated properly, its performance will drop.

If moisture 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 the caps of the gas pipe and liquid pipe and check that the valves are 1) closed. Remove the charging cap. 2) Connect a vacuum pump and a pressure gauge to a charging hose and connect 3) it to the charging port. Activate the vacuum pump and vacuum the indoor unit and connection piping 4) until 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 the charging hose and reinstall the charging cap. 6)

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Page 22

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.

Procedure for charging the system with refrigerant8. 3. 1.

Remove the charging cap from the liquid pipe. Use standard refrigeration prac- 1) tices when charging refrigerant. Attach a charging hose to the refrigerant cylinder, and connect it to the charging 2) port. Add refrigerant by calculating the additional refrigerant volume in accordance with 3) the calculation formula indicated below. Remove the charging cap and install the charging hose. 4) Remove the body caps (gas pipe and liquid pipe), and open the valves. 5) Close the body caps. 6) After adding refrigerant, indicate the added charging volume on the unit. 7)

Tighten the body caps and charging caps to the torque values speciﬁ ed in the * Tabl e A .

To open and close the valves, Use an M4 hexagon wrench for liquid pipe. Use an M10 hexagon wrench for gas pipe.

If you can not charge the speciﬁ ed amount of refrigerant with the above

method, be sure to charge the refrigerant through the gas pipe while operating in cooling mode. In order to prevent liquid back-ﬂ ow, carefully operate the refrigerant cylinder valve so that the refrigerant will ﬂ ow in certain part at a time.

Checking total amount of refrigerant and calculat-8. 3. 2. ing the amount of refrigerant charge to be added

The amount of refrigerant charge to be added is the total value of the basic refrig-• erant charge amount and the value calculated from the length of the liquid pipe. Round up the value to 2 dec• imal places.

Model HPdFactory charged amount

A72LALH

A90LALH

108LALH

126LALH

144LALH

Diameter of liquid pipe (mm)

Calculation of additional amount for outdoor unit(1)

Outdoor unit1 additional

A =

amount for outdoor unit

Outdoor unit3 additional amount for outdoor unit

Calculation of additional amount for pipe length(2)

8HP 11.20 0 10HP 11.20 0 12HP 11.80 1.20 14HP 11.80 3.30 16HP 11.80 3.30

Ø6.35 0.021

Ø9.52 0.058 Ø12.70 0.114 Ø15.88 0.178 Ø19.05 0.268

Outdoor unit2 additional

amount for outdoor unit

Total

(kg)

Additional amount for pipe length (kg/m)

Additional amount for

outdoor unit (kg)

Total length of

ø12.70 mm liquid

Total length of ø6.35 mm liquid pipe

Calculation of additional charge refrigerant(3)

C=A+B =

pipe

b × 0.114

× 0.021 (kg/

(kg/m)

Total length of ø9.52 mm liquid pipe

b × 0.058

Tot al

(Round up C to 2 decimal place)

(kg/m)

Calculation of factory charged amount(4)

Outdoor unit1

D =

factory charged amount

Outdoor unit3

factory charged amount

Total refrigerant amount check(5)

E=C+D=

Note : Check the total refrigerant amount under the following conditions

For 1 outdoor unit per refrigerant system : Total amount of refrigerant ≤ 31.5kg

For 2 outdoor units per refrigerant system : Total amount of refrigerant ≤ 63kg

For 3 outdoor units per refrigerant system : Total amount of refrigerant ≤ 94.5kg

Total

Condition Computational formula

Outdoor unit2

factory charged amount

E ≤ 31.5kg

E ≤ 63kg

E ≤ 94.5kg

When there are 3 outdoor units (AJ• 144LALH, AJ 126LALH, AJ 108LALH) connected to 1 system

Calculation of additional amount for outdoor unit(1)

A = 3.30 (kg) + 3.30 (kg) + 1.20 (kg) = 7.80 (kg)

Calculation of additional amount for pipe length(2)

If liquid pipe piping length is the following

19.05 : 50m, ø15.88 : 25m, ø12.70 : 0m, ø9.52 : 20m, ø6.53 : 15m

Additional charge volume B = 50 (m) × 0.268 (kg/m) + 25 (m) × 0.178 (kg/m)

= 19.325kg

Calculation of additional charge refrigerant(3)

C = A + B = 7.80 (kg) + 19.33 (kg) = 27.13 (kg)

Calculation of factory charged amount(4)

D = 11.8 (kg) + 11.8 (kg) + 11.8 (kg) = 35.4 (kg)

Check the total amount of refrigerant(5)

When 3 outdoor units are connected to 1 system, the following condition must be satisﬁ ed. Condition: E = C + D ≤ 94.5 (kg) Calculation: 27.13 (kg) + 35.4 (kg) = 62.53 (kg) < 94.5 (kg)

→ No problem if the above condition is satisﬁ ed.

+ 0 (m) × 0.114 (kg/m) + 20 (m) × 0.058 (kg/m) + 15 (m) × 0.021 (kg/m)

B =

Total length of ø19.05 mm liquid pipe

b × 0.268

(kg/m)

Total length of

ø15.88 mm liquid

pipe

En-21

b × 0.178

(kg/m)

Page 23

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.

Perform test operation for each refrigerant system. You can set “cooling test run" or “heating test run” with the push button on the outdoor unit PC board.

Test operation setting method

Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit PC board to conﬁ gure settings according to the procedures below.

FUNCTION settings

First 2 digits

Last 2 digits

MODE/EXIT

Insulation

Putty

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)

Relative humidity ≤ 70% ≤ 75% ≤ 80% ≤ 85%

Pipe diameter (mm)

When an ambient temperature and relative humidity exceed 32 °C, please strength-* en 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

19.0510131621

22.22 11 13 17 22

28.58 11 14 18 23

34.92 11 14 18 24

41.27 12 15 19 25

TEST RUN9.

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 operation is complete.

This will be displayed after 5 seconds.

ENTER

SELECT SELECT

For heating operation, press the “SELECT” button until “01” is displayed.

ENTER

Press the “ENTER” button for more than 3 seconds.

Settings for starting test run operation

This will be displayed when the heating test operation is complete.

This will be displayed after 5 seconds.

ENTER

Settings for stopping test run operation

Pre-test run check items9. 1.

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 every outdoor unit?

④

Are the cables connected to the terminals without looseness, and in accordance with

⑤

the 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

⑧

current 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.

After checking that the above items are all in order, refer to “9.2 Test

operation method” to test operation of the unit.

If there are problems, adjust immediately and recheck.

Test operation method9. 2.

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, all the outdoor units 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 (more than 12 hours) before restarting the operation.

ENTER 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.

ENTER

MODE/EXIT

EXIT

After the test operation is complete, turn off the power. Attach the cover of the electrical compartment 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 or DIP switch for the number of connected slave units 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.

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.

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Page 24

Checklist9. 3.

㪑

Check description Check method Criteria

High and low pressure

values are normal.

Drain water is dis-

charged smoothly through the drain hose.

Indoor and outdoor unit

fans are operating. Compressor operates after

the indoor unit operates. Difference between inlet

and 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 LED indicator

Cooling: low pressure approx. 0.8 MPa Heating: high pressure approx. 3.0 MPa

―

Temperature difference 10 degrees

Error blinking or no error code display

LED Status10.

You can determine the operating status by the lighting up and blinking of the 7 segment LED indicator. Check the status using the table below.

Normal operation mode10. 1.

Mode Code Description

Operation

CL Cooling Ht Heating

o r During oil recovery operation d F During defrosting operation P C During peak cut operation L n During low noise operation S n During setting of snowfall mode

E 9 2. 1 Outdoor unit compressor 2 error E 9 2. 2 Outdoor unit compressor 2 current value error E 9 3. 1 Outdoor unit inverter compressor start up error

Outdoor unit actuator error

Refrigerant system 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 error

E97.5

E 9 U. 2 Outdoor slave unit error

EA1.1

EA2.1

EA3.1Outdoor unit compressor 1 temperature error E A 3. 2 Outdoor unit compressor 2 temperature error E A 4. 1 Outdoor unit high pressure error E A 4. 2 Outdoor unit high pressure protective action 1 E A 4. 3 Outdoor unit high pressure protective action 2 E A 5. 1 Outdoor unit low pressure error E A C. 4 Outdoor unit heat sink temperature error

7 segment LED indicator:

㪘㪑

㪧

㪚㪑

㪃㪃

㪡㪑

㪃㪃㪃㪃

㫉㪑

㪃

㪃㪃㪃㪃㪃

㪍㪑

㪎㪑

㪃

Outdoor unit compressor motor loss of synchronization

Outdoor unit fan motor 1 temperature error (protective action)

Outdoor unit discharge temperature 1 error (permanent stop) Outdoor unit discharge temperature 2 error (permanent stop)

㪻㪑

㪣㪑㪟㪪㪑

㪃

㪜㪑

㪃

㫅㪑㫆

㫋㪑

㪃

㪊㪑㪈㪑㪉㪑

㪋㪑

㪐㪑㪏㪑

㪃

㪝㪑

㪃㪃

㪬㪑

㪃

㪌㪑

㪇㪑

㪃

Error codes10. 2.

Mode Code Description

Communication error

Function setting error

Indoor unit actuator error E 5 U. 1 Indoor unit miscellaneous error

Outdoor unit PCB/Electrical component/ Switch error

Outdoor unit sensor error

E 1 3. 1 Communication error between outdoor units E 1 4. 1 Outdoor unit network communication 1 error E 1 4. 2 Outdoor unit network communication 2 error E 1 4. 5 The number of indoor unit shortage E 2 8. 1 Auto address setting error E 2 8. 4 Signal ampliﬁ er auto address error

E61.5Outdoor unit reverse/missing phase & wiring 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

E 6 8. 1 Outdoor unit magnetic relay error

E68.2

E69.1

E 7 1. 1 Outdoor unit discharge temp. thermistor 1 error E 7 1. 2 Outdoor unit discharge temp. thermistor 2 error E 7 2. 1 Outdoor unit compressor temp. thermistor 1 error E 7 2. 2 Outdoor unit compressor temp. thermistor 2 error E 7 3. 3 Outdoor unit heat ex. liquid temp. thermistor error 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. 1 Outdoor unit liquid pipe temp. thermistor 1 error E 8 3. 2 Outdoor unit liquid pipe temp. thermistor 2 error E 8 4. 1 Outdoor unit current sensor 1 error (permanent stop) 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 8 6. 5 Outdoor unit high pressure switch 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 sub-cool heat ex. gas inlet temp. thermistor error Outdoor unit sub-cool heat ex. gas outlet temp. thermistor error

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Page 25

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

Label

En-24

Fujitsu AJYA90LALH, AJY144LALH, AJY108LALH, AJY126LALH, AJHA72LALH Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual