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Table. B  (Diameter of piping used between outdoor unit and first separation 

tube or header)

For the following installation conditions, it is necessary to increase the piping size.
• Condition 1: Total indoor unit capacity ratio 

˃

 110%

• Condition 2: Between outdoor unit and first separation tube or header 

˃

 70 m

If both conditions 1 and 2 are met, condition 2 is followed.

Model

Outdoor 

unit 

cooling 

capacity 

[kW]

Diameter of piping [mm (in)]

Liquid pipe

Gas pipe

Stan-

dard

Condi-

tion 1

Condi-

tion 2

Stan-

dard

Condi-

tion 1

Condi-

tion 2

AJ*072
LELBH

22.4

9.52 

(3/8)

12.70 

(1/2)

19.05 

(3/4)

22.22 

(7/8)

AJ*090
LELBH

28.0

9.52 

(3/8)

12.70 

(1/2)

22.22 

(7/8)

AJ*108
LELBH

33.5

12.70 

(1/2)

28.58 

(1-1/8)

AJ*126
LELBH

40.0

12.70 

(1/2)

28.58 

(1-1/8)

AJ*144
LELBH

45.0

12.70 

(1/2)

28.58 

(1-1/8)

AJ*162
LELBH

50.0

12.70 

(1/2)

28.58 

(1-1/8)

Table. C  (Diameter of piping used between separation tubes)
 

(If pipe diameter C > B, select pipe size from table B)

Total cooling 

capacity of indoor 

unit [kW]

Outside diameter [mm (in)]

Separation 

tube *4

Header *4

Liquid pipe

Gas pipe

x < 11.2

9.52 (3/8)

15.88 (5/8)

UTP-AX054A

UTR-H0906L
UTR-H0908L

11.2 

 x < 14.0

9.52 (3/8)

19.05 (3/4)

14.0 

 x < 19.7

12.70 (1/2)

19.05 (3/4)

19.7 

 x < 28.1

12.70 (1/2)

22.22 (7/8)

UTP-AX090A

28.1 

 x

12.70 (1/2)

28.58 (1-1/8)

UTP-AX180A

UTR-H1806L
UTR-H1808L

*4:  For the installation method, please refer to the installation manuals for indoor unit, 

separation tubes or headers. 

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

Table. D  (Diameter of piping used between separation tube and indoor unit)
 

(If pipe diameter D > C, select pipe size from table C)

Model code of indoor 

unit

Cooling capacity of indoor 

unit (kW)

Outside diameter [mm (in)]

Liquid pipe

Gas pipe

04, 07, 09

1.1, 2.2, 2.8

6.35 (1/4)

9.52 (3/8) (*5)

12, 14, 18

3.6, 4.5, 5.6

6.35 (1/4)

12.70 (1/2)

24, 30, 34, 36, 45, 

54, 60

7.1, 9.0, 10.0, 11.2, 12.5, 14.0, 

18.0

9.52 (3/8)

15.88 (5/8)

72, 90

22.4, 25.0

9.52 (3/8)

19.05 (3/4)

96

28.0

9.52 (3/8)

22.22 (7/8)

*5:  Between separation tube and Indoor unit > 20 m 

 12.70 mm (1/2 in).

Table. E   (Indoor unit capacity comparison table - The indication of power is 

different depending on the model.)

Model code of 

indoor unit

04/

004

07/

007

09/

009

12/

012

14/

014

18/

018

24/

024

30/

030

34/

034

36/

036

45/

045

54/

054

60/

060

72/

072

90/

090

96/

096

Capacity [kW]

1.1 2.2 2.8 3.6 4.5 5.6 7.1 9.0 10.0 11.2 12.5 14.0 18.0 22.4 25.0 28.0

In the case of ARXD007GLEH:  equivalent to model code of indoor unit

 Model code 007 

 Capacity=2.2kW

4.3.  Protection of pipes

Location

Working period

Protection method

Outdoor

1 month or more

Pinch pipes

Less than 1 month

Pinch or tape pipes

Indoor

Pinch or tape pipes

• Protect the pipes to prevent the entry of moisture and dust.
• Especially pay attention when passing the pipes through a hole or connecting the end of 

a pipe to the outdoor unit.

5. PIPE 

INSTALLATION

5.1. Brazing

 CAUTION

If air or another type of refrigerant enters the refrigera-
tion cycle, the internal pressure in the refrigeration 
cycle will become abnormally high and prevent the 
unit from exerting its full performance.

Pressure regulating valve

Cap

Nitrogen gas

Brazing area

Apply nitrogen gas while brazing the pipes.
Nitrogen gas pressure: 0.02 MPa (= pressure felt suf-
ficiently on the back of your hand)

If a pipe is brazed without applying nitrogen gas, it will create an oxidation film.
This can degrade performance or damage the parts in the unit (such as the compressor 
or valves).

Do not use flux to braze pipes. If the flux is the chlorine type, it will cause the pipes to 
corrode.
In addition, if the flux contains fluoride, it will affect the refrigerant piping system due to 
deterioration of refrigerant oil.

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

5.2.  Indoor unit pipe connections

 CAUTION

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

Separation tube

A

B

A

B

B

A

± 15°

GOOD

GOOD

Horizontal

Vertical

Horizontal line

or

A

:

Outdoor unit or Refrigerant 
branch kit

B

:

Indoor unit or Refrigerant 
branch kit

PROHIBITED

Header

C

H

1

α

1

β

1

D

H

2

α

2

β

2

GOOD

GOOD

Horizontal line

Horizontal line

View 

D

View 

C

Horizontal line

Vertical line

Gas pipe

Liquid pipe

Outdoor 
unit side

Outdoor 
unit side

H

1

 = 0 to 10 mm

H

2

 = 0 to 10 mm

(

α

1

: 0° to 1°) 

β

1

: -10° to 10°

(

α

2

: 0° to 1°) 

β

2

: -10° to 10°

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.

To indoor unit

To indoor unit

To indoor unit

Main pipe

Main pipe

0.5 m or more

0.5 m or more

To indoor unit

Separation tube

Header

To indoor unit

0.5 m or more

0.5 m or more

To indoor unit

Separation tube

Header

9380545347-01_IM.indb   6

9380545347-01_IM.indb   6

11/29/2019   8:49:52 AM

11/29/2019   8:49:52 AM

Summary of Contents for AIRSTAGE AJ 072LELBH Series

Page 1: ...or authorized service personnel only Nur für autorisiertes Fachpersonal Pour le personnel de service agrée uniquement Únicamente para personal de servicio autorizado A uso esclusivo del personale tecnico autorizzato Μόνο για εξουσιοδοτημένο τεχνικό προσωπικό Somente para o pessoal do serviço técnico autorizado Только для авторизованного обслуживающего персонала Yalnızca yetkili servis personeli iç...

Page 2: ...all the electrical box cover on the unit An improperly installed electrical box cover can cause serious accidents such as electric shock or fire through exposure to dust or water Do not turn ON the power until all work has been completed Turning ON the power before the work is completed can cause serious accidents such as electric shock or fire After the installation make sure there is no refriger...

Page 3: ... start or stop the operation of air conditioning with power breaker Other wise it may cause malfunction or water leakage When setting it up near the equipment that generates electromagnetic waves and the equipment that generates the higher harmonics wave be sure to take measures against noise Otherwise it may cause malfunction or failure When energizing to the crankcase heater please turn on the p...

Page 4: ...por 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 indoo...

Page 5: ... unit WARNING Do not touch the fins Otherwise personal injury could result CAUTION When carrying the unit hold the handles on the right and left sides and be careful If the outdoor unit is carried from the bottom hands or fingers may be pinched Hoisting method When hoisting the outdoor unit hook the rope on the outside of the foot as shown in the figure Use sufficiently strong rope to bear the uni...

Page 6: ... local rules 1 Allowable tensile stress 33 N mm2 2 Allowable tensile stress 61 N mm2 3 Endurance pressure of the pipes 4 2MPa 3 5 Installing the unit Please install the outdoor unit without slant within 0 3 degrees Install 4 anchor bolts at the locations indicated with arrows in the figure To reduce vibration do not install the unit directly on the ground Install it on a secure base such as concre...

Page 7: ...090 96 096 Capacity kW 1 1 2 2 2 8 3 6 4 5 5 6 7 1 9 0 10 0 11 2 12 5 14 0 18 0 22 4 25 0 28 0 In the case of ARXD007GLEH equivalent to model code of indoor unit Model code 007 Capacity 2 2kW 4 3 Protection of pipes Location Working period Protection method Outdoor 1 month or more Pinch pipes Less than 1 month Pinch or tape pipes Indoor Pinch or tape pipes Protect the pipes to prevent the entry of...

Page 8: ... valves Use a hexagon wrench Liquid valve size 4 mm Gas valve size 8 mm Opening 1 Insert the hexagon wrench into the valve shaft and turn it counterclock wise 2 Stop turning when the valve shaft can no longer be turned Open position Closing 1 Insert the hexagon wrench into the valve shaft and turn it clockwise 2 Stop turning when the valve shaft can no longer be turned Closed position Opening dire...

Page 9: ...he 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 earth leakage circuit breaker is necessary to prevent a malfunction of the breaker itself When the electrical switchboard is ...

Page 10: ...door unit Signal amplifier System controller Touch panel controller Transmission line Terminal resistor Terminal resistor NS 1 NS 2 NOTES Do not use loop wiring This may lead to parts damage and erroneous operation 6 4 3 Enabling Disabling automatic address setting You can enable disable automatic address setting for the indoor unit and the signal ampli fier To enable automatic address setting for...

Page 11: ...l 126 144 162 model 162 model How to connect wiring to the terminal Caution when wiring cable 1 Use ring terminals with insulating sleeves as shown in the figure to connect to the terminal block 2 Securely clamp the ring terminals to the cables using an appropriate tool so that the cables do not come loose 3 Use the specified cables connect them securely and fasten them so that there is no stress ...

Page 12: ...tton setting NOTES 1 The external input priority mode must be set by pressing push button on PC board of outdoor unit Refer to 7 FIELD SETTING 2 Batch stop or Emergency stop pattern can be selected by outdoor unit PC board push button Refer to 7 FIELD SETTING 3 The emergency stop function mounted in this model does not guarantee the regula tions of each country For this reason sufficient checking ...

Page 13: ...ressure 1 equivalent to 072 090 model 30 Pa 108 model 40 Pa 126 144 162 model 60 Pa 0 1 25 Prohibited Factory default 2 5 0 0 26 Prohibited Factory default 2 6 0 0 27 Prohibited Factory default 2 7 0 0 28 Prohibited Factory default 2 8 0 0 29 Prohibited Factory default 2 9 0 0 7 FIELD SETTING CAUTION Discharge the static electricity from your body before setting up the DIP switches Never touch the...

Page 14: ...ectricity 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 4 This item is not displayed for 072 090 and 108 models 1 Turn on the power of the outdoor unit and enter standby mode When ...

Page 15: ...cedures to check the addresses 7 6 2 Procedures to enable automatic address setting 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 display When ...

Page 16: ...ocedure 1 Remove the blank caps of the gas pipe and liquid pipe and check that the valves are closed 2 Remove the charging port cap 3 Connect a vacuum pump and a pressure gauge to a charging hose and connect it to the charging port 4 Activate the vacuum pump and vacuum the indoor unit and connection piping until the pressure gauge becomes 100 7 kPa 755mm Hg Evacuate from both the gas pipe and the ...

Page 17: ... caused near electrical components in the service panel If the outdoor unit is installed at a level that is higher than the indoor unit the water that has condensed in the 3 way valve of the outdoor unit could travel to the indoor unit Therefore use putty in the space between the pipe and the insulation to prevent the entry of water to the indoor units 9 TEST RUN 9 1 Indoor unit connection check N...

Page 18: ...rror codes can be confirmed by pressing the SELECT button Example When Indoor unit capacity error E221 and Indoor unit duplicate address error E261 occurred 1 When the address of the overlap indoor unit is displayed press and hold the ENTER button for more than 3 seconds 2 When errors other than the address of the overlap indoor unit exist press SELECT but ton to switch to the next error If error ...

Page 19: ...ssor start up error E 9 4 1 Outdoor unit trip detection E 9 5 5 Outdoor unit compressor motor loss of synchroniza tion E 9 7 1 Outdoor unit fan motor 1 lock error E 9 7 4 Outdoor unit fan motor 1 undervoltage error E 9 7 5 Outdoor unit fan motor 1 temperature error protective action E 9 7 9 Outdoor unit fan motor 1 driver error E 9 8 1 Outdoor unit fan motor 2 lock error E 9 8 5 Outdoor unit fan m...

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