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En-18

9.4. Checklist

Check description

Check method

Criteria

1

High and low pressure values 
are normal.

Check it with a pres-
sure gauge.

Cooling: low pressure ap-
prox. 0.8 MPa
Heating: high pressure 
approx. 3.0 MPa

2

Drain water is discharged 
smoothly through the drain 
hose.

Check it by pouring 
water.

3

Indoor and outdoor unit fans 
are operating.

Check them visually.

4

Compressor operates after the 
indoor unit operates.

Check the operating 
sound.

5

Difference between inlet and 
outlet temperatures is normal.

Measure the inlet and 
outlet temperatures.

Temperature difference 
10 degrees

6

Error is not displayed.

Check the 7 segment 
display.

Error blinking or no error 
code display

10. LED STATUS

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

10.1. Normal operation codes

Mode

CODE

DESCRIPTION

Operation

C

L

Cooling

H

t

Heating

o

r

During oil recovery operation

d

F During defrosting operation

P

C During power saving operation

L

n During low noise operation

10.2. Error codes

Mode

CODE

DESCRIPTION

Communica-
tion error

E

1

4.

2 Outdoor unit network communication 2 error

E

1

4.

5 The number of indoor unit shortage

Function setting 
error

E

2

2.

1 Indoor unit capacity error

E

2

4.

2 Connection unit number error (Indoor unit)

E

2

6.

1 Indoor unit duplicate address error

E

2

8.

1 Auto address setting error

E

2

8.

4 Signal ampli

fi

 er auto address error

Indoor unit 
actuator error

E

5

U.

1 Indoor unit miscellaneous error

Outdoor unit 
PCB/Electrical 
component/ 
Switch error

E

6

2.

3 Outdoor 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

E

6

7.

2

Outdoor unit inverter PCB power short interruption 
error

E

6

8.

2

Outdoor unit rush current limiting resister temp. rise 
error (protective operation)

E

6

9.

1

Outdoor unit transmission PCB parallel communica-
tion error

Outdoor unit 
sensor error

E

7

1.

1 Outdoor unit discharge temp. thermistor 1 error

E

7

2.

1 Outdoor unit compressor temp. thermistor 1 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

E

8

2.

1

Outdoor unit sub-cool heat ex. gas inlet temp. therm-
istor error

E

8

2.

2

Outdoor unit sub-cool heat ex. gas outlet temp. 
thermistor 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

Outdoor unit 
actuator error

E

9

3.

1 Outdoor unit inverter compressor 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

8.

1 Outdoor  unit  fan  motor  2  lock  error

E

9

8.

5

Outdoor unit fan motor 2 temperature error 
(protective action)

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

A

5.

1 Outdoor unit low pressure error

E

A

C.

4 Outdoor unit heat sink temperature error

7 segment LED indicator:

,,

,

,

,

,

,

,

,

,

,

t:

L:

7:

H:

J:

6:

A:

C:

E:

F:

,

,

,

d:

n:

o:

r:

,

,

,

,

,

9:

P:

U:

S:

8:

,

,

,

,

5:

3:

4:

1:

2:

,

0:

11. INFORMATION

Main contents of label

Item

Detail

  1.  Model name

Model name

  2.  Serial number

Serial number

  3.  Electric characteristics

Phase, rated voltage, and frequency

  4.  Weight 

Product weight

  5.  Capacity

Cooling/heating capacity under cooling/heating 
condition (refer to item 15)

  6.  Current

Electric current during cooling/heating operation 
under cooling/heating condition (refer to item 15)

  7.  Input power

Input during cooling/heating operation under cool-
ing/heating condition (refer to item 15)

  8.  Max. Current

Maximum electric current (temperature condition is 
max. cooling condition [refer to item 16])

  9.  Air circulation

Air circulation

10.  Noise level

Noise level

11.  Refrigerant

Refrigerant type and initial charging amount

12. Max. pressure (HP/LP)

Means pressure of High Pressure side/Low Pres-
sure side

13.  Protection

Protection level against dust and water

14.  Working temperature

Working temperature

15. Condition 

of 

cooling/heating

Dry-bulb temperature and wet-bulb temperature 
under standard cooling/heating condition

16. Condition of max. cooling

Dry-bulb temperature and wet-bulb temperature at 
maximum electric current and input

17.  Manufacture year

Manufacture year

18. Origin

Origin country

19. Manufacturer

Manufacturer
FUJITSU GENERAL LIMITED 
Address: 3-3-17, Suenaga, Takatsu-ku, Kawasaki 
213-8502, Japan

9380545170_IM.indb   18

9380545170_IM.indb   18

5/19/2016   2:23:18 PM

5/19/2016   2:23:18 PM

Summary of Contents for AJH040LBLAH

Page 1: ... DIŞ ÜNİTE For authorized service personnel only Nur für autorisiertes Fachpersonal Uniquement réservé aux techniciens agréés Sólo para personal de servicio autorizado A uso esclusivo del personale tecnico autorizzato Μόνο για εξουσιοδοτημένο τεχνικό προσωπικό Apenas para técnicos de assistência autorizados Только для авторизованного обслуживающего персонала Yalnızca yetkili servis personeli için ...

Page 2: ...c shock or fire Securely install 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 m...

Page 3: ...n 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 failur...

Page 4: ...e 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 drain work in accordance with this Manual and ensure that the drain water is properly drained If the drain work is not carried out ...

Page 5: ...of the unit Otherwise the suction grilles on the sides of the unit may be deformed Front view Rear view Fig B Handle Handle Suction grille Fig A 3 5 Installing the unit Please install the outdoor unit without slant within 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 ba...

Page 6: ...n 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 4 SYSTEM CONFIGURATION 4 1 System configuration CAUTION Always keep to the limit on the total amount of refrigerant...

Page 7: ...ontal line View D View C Horizontal line Vertical line Gas pipe Liquid pipe Outdoor unit side Outdoor unit side H1 0 to 10 mm H2 0 to 10 mm α1 0 to 1 β1 10 to 10 α2 0 to 1 β2 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 Main pipe 0 5 m or more To indoor unit To indoor unit To indoor unit Mai...

Page 8: ...ve any burrs 3 Insert the flare nut always use the flare nut attached to the indoor and outdoor units respectively onto the pipe and perform the flare processing with a flare tool Leakage of refrigerant may result if other flare nuts are used 4 Protect the pipes by pinching them or with tape to prevent dust dirt or water from entering the pipes L Check if L is flared uniformly and is not cracked o...

Page 9: ...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 installed outdoors place it und...

Page 10: ...g 2 NOTE Do not use loop wiring This may lead to parts damage and erroneous operation Outdoor unit Indoor unit Signal Amplifier System Controller Touch Panel Controller Transmission line Terminal resistor Terminal resistor NS 1 NS 2 F H L G K J E 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 enab...

Page 11: ...rminal Sleeve Screw with special washer Ring terminal Cable Shielding the transmission cable Connect both ends of the 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...

Page 12: ... This is the output signal for base heater Output signal ON when the outdoor temperature goes down below 2 C and signal OFF at the outdoor temperature 4 C 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 ...

Page 13: ...efrigerant circuit address Rotary Switch Setting Setting Setting range Type of switch REF AD 10 1 Refrigerant circuit address 0 99 Setting example 63 0 0 0 1 0 1 2 0 2 REF AD 10 REF AD 1 Rotary Switch REF AD 1 Factory setting 0 Rotary Switch REF AD 10 Factory setting 0 98 9 8 99 9 9 7 4 Push button setting Various functions can be set Set when necessary Perform settings after all indoor units have...

Page 14: ...s Last 2 digits When F3 to F9 are displayed continue to press the SELECT button until F2 is displayed 2 Setting the first 2 digits 3 Setting the last 2 digits Continue to press the SELECT button until the desired number appears at the last 2 digits Every press of the SELECT button will change the setting number for the first 2 digits Continue to press the SELECT button until the desired number app...

Page 15: ...e 7 segment display When ERROR is displayed inspect the units Use the MODE EXIT SELECT and ENTER buttons on the outdoor unit PC board to configure settings according to the procedures below 1 Function setting The display when the main power is turned on When F4 to F9 are displayed continue to press the SELECT button until F3 is displayed Press the SELECT button until 11 is displayed Press the ENTE...

Page 16: ...uation procedure 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...

Page 17: ... has condensed in the 3 way valve of the outdoor unit could travel to the indoor unit Therefore use putty in the space between the pipe and the insulation to prevent the entry of water to the indoor units Fig A Putty Insulation 9 TEST RUN 9 1 Indoor unit connection check Normal operation will not be possible without performing the Indoor unit connection check 9 1 1 Things to confirm before startin...

Page 18: ...he EN TER button for more than 3 seconds 2 When errors other than the address of the overlap indoor unit exist press SE LECT button to switch to the next error If error occurs it will display Ad address number 9 2 Test run Before the test operation check the following items 1 Is there a gas leakage At pipe connections flange connections and brazed areas 2 Is the system charged with the specified v...

Page 19: ...r 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 Outdoor unit actuator error E 9 3 1 Outdoor unit inverter compressor start up error E 9 4 1 Outdoor unit trip detection E 9 5 5 ...

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