EN - 43
EN - 42
About Alarms
Description of Abnormality Alarm
When the ground fault protector is activated, check insulation of the equipment and circuit, eliminate the cause, and
then supply power again.
Anomaly item
Number
of times
to
automatic
ally
restart
When restarting
When stopped
Note
Alarm indication
External
alarm
signal
Communica
-
tion signal
Alarm indication
External
alarm
signal
Communica
-
tion signal
ALARM
(Red)
LED
Error
code
ALARM
(Red)
LED
Error
code
High pressure anomaly
6
blinking
E311
none
none
lighting
E011
output
output
1)
Discharge gas temperature anomaly
2
blinking
E101
none
none
lighting
E031
output
output
2)
Discharge gas temperature sensor anomaly
None
-
-
-
-
lighting
E041
output
output
Low pressure sensor anomaly
None
-
-
-
-
lighting
E05
output
output
High pressure sensor anomaly
None
-
-
-
-
lighting
E06
output
output
Suction gas temperature sensor anomaly
None
-
-
-
-
OFF
E07
none
none
Oil level anomaly
1
blinking
E391
none
none
lighting
E091
output
output
3)
Inverter communication anomaly
None
-
-
-
-
lighting
E181
E183
output
output
Controller communication anomaly
None
-
-
-
-
OFF
E19
none
none
Radiator temperature anomaly
None
-
-
-
-
lighting
E201
output
output
Radiator temperature anomaly
None
-
-
-
-
lighting
E221
output
output
Ambient temperature sensor anomaly
None
-
-
-
-
lighting
E23
output
output
Gas cooler fan motor anomaly
None
-
-
-
-
OFF
E271
none
none
4)
Refrigerant flood back alarm
None
-
-
-
-
OFF
E32
none
none
5)
Intermediate pressure anomaly
6
blinking
E36
none
none
lighting
E46
output
output
Unit outlet pressure anomaly
6
blinking
E37
none
none
lighting
E47
output
output
Intermediate pressure sensor anomaly
None
-
-
-
-
lighting
E81
output
output
Unit outlet temperature sensor anomaly
None
-
-
-
-
lighting
E57
output
output
Gas cooler outlet temperature sensor
anomaly
None
-
-
-
-
lighting
E59
output
output
Split cycle outlet temperature sensor
anomaly
None
-
-
-
-
lighting
E80
output
output
Oil level switch anomaly
None
-
-
-
-
lighting
E851
output
output
Unit outlet pressure sensor anomaly
None
-
-
-
-
lighting
E88
output
output
Refrigerant over charge
-
blinking
E84
none
none
-
-
-
-
Reset method when stopped.
Operate either ground fault interrupter, operation switch, or controller.
1) After stopping for 5 min, then “auto recovery”.
2) Restart when the discharge gas temperature becomes 75°C or below.
3) After stopping for 1 min, then “auto recovery”.
4) After stopping for 60 min, then “auto recovery”
5) Auto recovery when the difference between the evaporating temperature and suction gas temperature is 5K or greater.
01_OCU-CR1000VF8A.indd 42
2019/08/27 10:56:09