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En-5

4. SYSTEM 

CONFIGURATION

For detailed information, refer to the Design and Technical Manual.

4.1. System 

con

fi

 guration

 CAUTION

Always keep to the limit on the total amount of refrigerant. Exceeding the limit on the 
total amount of refrigerant when charging will lead to malfunction.

• Between outdoor unit and the farthest indoor unit

a + f 

 120 m, a + p 

 120 m

• Between the first separation tube and the farthest indoor unit

 90 m, p 

 90 m

• (The farthest indoor unit to the first separation tube) - (The nearest indoor unit to the first 

separation tube)

f - (b + h) 

 60 m, p - (c + q) 

 60 m

• Between the nearest indoor unit and the outdoor unit

a + b + h 

 5 m, a+c+q 

 5 m

• Between outdoor unit and the first separation tube

 3 m

• Difference in height between outdoor units and indoor units (H1)

50 m or less: Outdoor unit is higher than indoor unit
40 m or less: Outdoor unit is lower than indoor unit

• Difference in height between indoor units and indoor units (H2, H3)

50 m or less: Outdoor unit is higher than indoor unit
40 m or less: Outdoor unit is lower than indoor unit

• Maximum total equivalent pipe length

a + f + h + j + l + n + p + q + s + u 

 400 m

• Total refrigerant amount 

 25.6 kg

Fig. A

f

p

q

j

h

b

c

s

u

H3

l

n

H1

H2

a

Outdoor unit 

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

4.2. Pipe 

selection

 CAUTION

This unit is designed specifically 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.

First separation 
tube (optional)

Separation 
tube (optional)

Pipe size 
(table B)

Pipe size 
(table C)

Pipe size 
(table D)

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Indoor 

unit

Table. A 

(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

Wall Thick-

ness (*3)

mm 

0.8

0.8

0.8

1.0

1.2

1.0

1.0

Material

COPPER *1
JIS H3300 C1220T-O or equivalent

COPPER *2
JIS H3300 C1220T-H or 
equivalent

Please select the pipe size in accordance with local rules.
*1:  Allowable tensile stress 

 33 (N/mm

2

)

*2:  Allowable tensile stress 

 61 (N/mm

2

)

*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 concrete blocks).

• The foundation shall support the legs of the unit and have a width of 80 mm or more.
• Depending on the installation conditions, the outdoor unit may spread its vibration during 

operation, which may cause noise and vibration. Therefore, attach damping materials 
(such as damping pads) to the outdoor unit during installation.

• Install the foundation, making sure that there is enough space for installing the connec-

tion pipes.

• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially avail-

able M10 to M12 bolts, nuts, and washers.)

• The bolts should protrude 20 mm. (Refer to the figure.)
• If overturning prevention is required, purchase the necessary commercially available 

items.

AIR

688

195

195

80

80

19

20

516

Unit: mm

Bolt

Nut

Base

• Do not install directly on the ground, this may result in equipment failure.
• The drain water is discharged from the bottom of the equipment. Construct a drain ditch 

around the base and discharge the drain water properly.

• Provide ample space for ice buildup from condensate between the bottom of the unit and 

the flat surface on which it is mounted. Otherwise, there is risk that the drainage water 
will freeze between the device and the surface, disabling drainage.

Base

 CAUTION

If the unit is installed in a region that is exposed to 
high winds, freezing conditions, freezing rain, snow 
fall or heavy snow accumulation, take appropriate 
measures to protect it from those elements.
To ensure stable operation, the outdoor unit must be 
installed on a raised stand or rack, at or above the 
anticipated snow depth for the region.
The installation of snow hoods and drift prevention 
fencing is recommended when blowing and drifting 
snow is common to the region.

9380545248-02_IM.indb   5

9380545248-02_IM.indb   5

2018/1/24   9:36:31

2018/1/24   9:36:31

Содержание AIRSTAGE AJH126LELAH

Страница 1: ...Й МОДУЛЬ For authorized service personnel only Только для авторизованного обслуживающего персонала PART No 9380545248 02 AJY126LELAH AJY144LELAH AJH126LELAH AJH144LELAH Original instructions 9380545248 02_IM indb i 9380545248 02_IM indb i 2018 1 24 9 36 29 2018 1 24 9 36 29 ...

Страница 2: ...stall 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 refrig...

Страница 3: ... near the equipment that generates electromagnetic waves and the equipment that generates the higher harmonics wave be sure to take measures against noise Otherwise it may cause malfunction or failure When energizing to the crankcase heater please turn on the power 12 hours or earlier before operation begins When the energizing time is short it may cause failure Be sides please do not turn off pow...

Страница 4: ... 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 3 2 Drain processing CAUTION Perform ...

Страница 5: ... more 500 or more 600 or more 1500 or more 3000 or more 3 4 Transporting the 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 ...

Страница 6: ...ordance with 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 su...

Страница 7: ...n 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 beco...

Страница 8: ...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 direction Hexagon wrench Seal blank cap installation portion Liquid pipe Gas...

Страница 9: ...ot 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 earth leakage circuit breaker is necessary to prevent a malfunction of the breaker itself...

Страница 10: ...door unit Indoor 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...

Страница 11: ...e shielded wire of the transmission cable to the earth ground terminal of the equipment or to the earth ground screw near the terminal Be sure to use one side of a twisted pair cable when using transmission cable with 2 sets of twisted pair cables Wind with insulation tape to prevent short circuit Use one side of the twisted pair cable Connect both ends of shielded wire to earth Ground 6 6 Externa...

Страница 12: ...heater Output signal ON when the outdoor temperature goes down below 2 C and signal OFF at the outdoor temperature 4 C Voltage power supply input voltage cable 0 82 mm2 18AWG P C B Base heater 9 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 7 FIELD SETTING CAUTION Discharge the static electricity from your body before setting up the...

Страница 13: ... 9999 7 3 Rotary switch setting The rotary switch REF AD sets the refrigerant circuit address of the outdoor unit Config ure 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 Refrigerant circuit address Rotary Switch Setting Setting Setting range Type of switch REF AD 10 1 Refrigerant ...

Страница 14: ...r unit on the network Refer to Fig Wiring example for automatic address setting 7 6 1 chapter for the wiring example For manual setting of address refer to the signal amplifier installation manual 7 5 2 Automatic address setting for signal amplifiers When setting the address of the signal amplifier please use the factory setting See the installation manual of the signal amplifier When the system i...

Страница 15: ... to 101 kgf cm 18 0 to 22 0 N m 184 to 224 kgf cm 11 4 to 14 0 N m 116 to 143 kgf cm Gas valve 27 0 to 33 0 N m 275 to 337 kgf cm 22 5 to 27 5 N m 229 to 280 kgf cm 8 1 Sealing test CAUTION Use only nitrogen gas Never use refrigerant gas oxygen in flammable gas or poisonous gas to pressurize the system If oxygen is used there is the danger of an explosion Do not apply shock during sealing test It ...

Страница 16: ... values specified in the Table A To open and close the valves use a specified hexagon wrench 8 3 2 Checking total amount of refrigerant and calculating the amount of refrigerant charge to be added The amount of refrigerant charge to be added is the total value of the basic refrigerant charge amount and the value calculated from the length of the liquid pipe Round up the value to 2 decimal places M...

Страница 17: ...acity 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 occurs it will display Ad address number 9 2 Pre check for test run Before the test op...

Страница 18: ... action E 9 8 9 Outdoor unit fan motor 2 driver error E 9 A 1 Outdoor unit coil 1 expansion valve 1 error E 9 A 2 Outdoor unit coil 2 expansion valve 2 error Refrigerant system error E A 1 1 Outdoor unit discharge temperature 1 error perma nent stop E A 3 1 Outdoor unit compressor 1 temperature error E A 4 1 Outdoor unit high pressure error E A 4 2 Outdoor unit high pressure protective action 1 E ...

Страница 19: ...g condition refer to item 15 8 Max Current Maximum electric current Test condition IEC60335 2 40 9 Refrigerant Refrigerant type and initial charging amount 10 Max pressure HP LP Means pressure of High Pressure side Low Pres sure side 11 Protection Protection level against dust and water 12 Condition of cooling heating Dry bulb temperature and wet bulb temperature under standard cooling heating con...

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