Code Retry control Activation conditions Notes
P11 Pressure ratio decrease retry Pressure ratio Ɛ < 1.8
When activating three times in thirty
minutes, alarm code "43" is indicated.
P12 Low pressure increase retry Ps > 1.4 MPa
When activating three times in thirty
minutes, alarm code "44" is indicated.
P13 High pressure increase retry
Pd ≥ 3.8 MPa
When activating three times in thirty
minutes, alarm code "45" is indicated.
P14
Constant speed compressor
overcurrent retry
* ico < 2.5 A over 50 ms
* ico ≥ icomax over 50 ms
ico: running current of the constant speed compressor
icomax: maximum
current of the constant speed
compressor
When activating three times in thirty
minutes, alarm code "39" is indicated.
Constant speed
compressor
icomax
400 V
E655 15.5 A
E855 21.0 A
P15
Discharge gas temperature
increase retry
Discharge gas temperature ≥ 132
°C for more than
10 minutes, or
Discharge gas temperature ≥ 140 °C for more than 5
seconds
When activating three times in sixty
minutes, alarm code "08" is indicated.
Low pressure decrease retry Ps < 0.09 MPa more than 12 minutes
When activating three times in sixty
minutes, alarm code "47" is indicated.
P16
Discharge gas super-heating
decrease retry
Discharge gas superheat ≤ Tc
+ 10 °C more than
30 minutes
Tc: Saturation temperature
When activating three times in one hundred
and twenty minutes, alarm code "07" is
indicated.
P17 Inverter anomaly retry
Instantaneous overcurrent
When activating six times in thirty minutes,
alarm code "48" is indicated.
Abnormal current sensor
When activating three times in thirty
minutes, alarm code "51" is indicated.
IPM error
When activating seven times in thirty
minutes, alarm code "53" is indicated.
Fin temperature ≥ 100 °C
When activating three times in thirty
minutes, alarm code "54" is indicated.
P18
Inverter voltage anomaly retry
Insufficient voltage in the Inverter circuit
When activating three times in thirty
minutes, alarm code "06" is indicated.
Excessive voltage in the Inverter circuit
When activating three times in thirty
minutes, alarm code "06" is indicated.
Inverter failure retry
The actual Inverter
frequency
is 0 Hz more than 3 seconds
after the Inverter frequency is outputted
When activating three times in thirty
minutes, alarm code "55" is indicated.
P26 High pressure decrease retry
Pd < Ta / 130 + 0.1 MPa more than 4 minutes, or
Pd < 1.0 MPa more than 60 minutes
Ta: Ambient temperature
No alarm.
Ps: Compressor suction pressure; Pd: compressor discharge pressure.
(5) Alarm code
Refer to chapter Alarm codes, see on page 168.
8 Troubleshooting
248
SMGB0065 rev. 1 - 12/2010
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