Checklist; Led Status; Normal Operation Mode; Error Mode - Fujitsu AirStage AJYA72GALH Installation Manual

9. 3.

Checklist

Check description
High and low pressure
1
values are normal.
Drain water is dis-
2 charged smoothly
through the drain hose.
Indoor and outdoor unit
3
fans are operating.
Compressor operates after
4
the indoor unit operates.
Difference between inlet
5 and outlet temperatures
is normal.
6 Error is not displayed
10.

LED Status

You can determine the operating status by the lighting up and blinking of the 7 seg-
ment LED indicator.
Check the status using the table below.
10. 1.

Normal operation mode

Mode Code
C L Cooling
H t Heating
o r During oil recovery operation
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
10. 2.

Error mode

Mode Code
E 1 3. 1 Communication error between Outdoor unit
E 1 4. 1 Outdoor unit network communication 1 error
Communication 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
Function setting error
E 2 8. 4 Signal amplifi er auto address error
Indoor unit actuator error E 5 U. 1 Indoor unit error
E 6 1. 5 Outdoor unit reverse phase, missing phase wire error
E 6 2. 3 Outdoor unit EEPROM access error
E 6 2. 6 Inverters communication error
Outdoor unit PCB/Elec-
E 6 2. 8 EEPROM data corrupted error
trical component/ Switch
E 6 3. 1 Inverter error
error
E 6 7. 2 Inverter PCB short interruptions detection
E 6 8. 2 Rush current limiting resister temp rise protection
E 6 9. 1
En-25
Check method Criteria
Cooling: low pressure ap-
Check it with a prox. 0.8 MPa
pressure gauge. Heating: high pressure ap-
prox. 3.0 MPa
Check it by pour-
―
ing water.
Check them visu-
―
ally.
Check the operat-
―
ing sound.
Measure the inlet
Temperature difference 10
and outlet temper-
degrees
atures.
Check the 7
Error blinking or no error
segment LED
code display
indicator
Description
Description
Outdoor unit transmission PCB parallel
communication error
E 7 1. 1 Discharge temp. sensor1 error
E 7 2. 1 Compressor temp. sensor1 error
E 7 3. 4 Heat Ex.1 gas temp. sensor error
E 7 3. 5 Heat Ex.1 liquid temp. sensor error
E 7 3. 6 Heat Ex.2 gas temp. sensor error
E 7 3. 7 Heat Ex.2 liquid temp. sensor error
E 7 4. 1 Outdoor temp. sensor error
Outdoor unit sensor
E 7 5. 1 Suction gas temp. sensor error
error
E 7 7. 1 Heat sink temp. sensor error
E 8 2. 2 Sub-cool Heat Ex. gas outlet temp. sensor error
E 8 3. 1 Liquid pipe temp. sensor1 error
E 8 3. 2 Liquid pipe temp. sensor2 error
E 8 4. 1 Current sensor 1 error (permanent stop)
E 8 6. 1 Discharge pressure sensor error
E 8 6. 3 Suction pressure sensor error
E 8 6. 4 High pressure switch 1 error
E 9 3. 1 Inverter compressor start up error
E 9 4. 1 Trip detection
E 9 5. 5 Compressor motor loss of synchronization
E 9 7. 1 Outdoor unit fan motor lock error
E 9 7. 5 Fan motor temperature abnormal (protected operation )
Outdoor unit actuator
error
E 9 7. 9 Fan motor driver abnormal
E 9 A. 1 Coil1 (Expansion valve1) error
E 9 A. 2 Coil2 (Expansion valve2) error
E 9 A. 3 Coil3 (Expansion valve3) error
E 9 U. 2 Slave unit error
E A 1. 1 Discharge temperature 1 abnormal
E A 3. 1 Compressor1 temperature abnormal
E A 4. 1 High pressure abnormal
E A 4. 2 High pressure protection1
Refrigerant system
abnormal
E A 5. 1 Low pressure abnormal
E A 6. 3 Outdoor heat exchanger 1 gas temperature abnormal
E A 6. 4 Outdoor heat exchanger 2 gas temperature abnormal
E A C. 4 Heat sink temperature abnormal
7 segment LED indicator:
11.

INFORMATION

Main contents of label
Item
1. Model name
2. Serial number
3. Electric characteristics
4. Weight
5. Capacity
6. Current
7. Input power
8. Max. Current
9. Air circulation
10. Noise level
11. Refrigerant
Detail
Model name
Serial number
Phase, rated voltage, and frequency
Product weight
Cooling/heating capacity under cooling/
heating condition (refer to item 15)
Electric current during cooling/heating
operation under cooling/heating condi-
tion
(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])
Air circulation
Noise level
Refrigerant type and initial charging
amount