47
Table 3 Alarms & safety function list
Alarm & safety
Situation
LCD touch panel
Buzzer
Remote
alarm
Safety
operation
Message display field
Alarm display
Sensor abnormality
If the thermal sensor is
disconnected.
Err01:
Temperature Sensor Open.
“Warning” is
displayed
alternately in
normal
characters and
reverse video.
Intermittent
tone
ON
Unit is
continuous
running.
If the thermal sensor is
short-circuited.
Err02:
Temperature Sensor Short.
〃
If the condenser sensor A
is disconnected.
Err03:
Condenser Sensor ‘A’ Open.
〃
〃
〃
-----
If the condenser sensor A
is short circuited.
Err04:
Condenser Sensor ‘A’ Short.
〃
If the condenser sensor B
is disconnected.
Err05:
Condenser Sensor ‘B’ Open.
〃
〃
〃
-----
If the condenser sensor B
is short-circuited.
Err06:
Condenser Sensor ‘B’ Short.
〃
If the ambient tem. sensor
is disconnected.
Err07:
Ambient Temp Sensor Open.
〃
〃
〃
-----
If the ambient tem. sensor
is short-circuited.
Err08:
Ambient Temp Sensor Short.
〃
Battery switch check
When the battery switch
for power failure alarm is
OFF.
Err09:
Battery Switch is OFF.
----- -----
-----
-----
Condenser A temp.
abnormality
If the temperature of the
condenser sensor A is
50
o
C or higher.
Err20:
Condenser ‘A’ Temp Abnormal.
“Warning” is
displayed
alternately in
normal
characters and
reverse video
Intermittent
tone
ON
Compressor
A OFF
Condenser B temp.
abnormality
If the temperature of the
condenser sensor B is
50
o
C or higher.
Err21:
Condenser ‘B’ Temp Abnormal.
Compressor
B OFF
Communication
error
When communication
between LCD touch
panel and control
substrate is died out or
unstable.
Err56:
Communication Failure.
----- -----
-----
-----
Cooling circuit
abnormality
(Self-diagnosis time:
2 a.m.
~
6 a.m.)
The performance of the
cooling circuit “A” gets
worse.
Warning:
Cooling Circuit ‘A’ Abnormal
“Warning” is
displayed
alternately in
normal
characters and
reverse video.
Intermitten
t tone
ON -----
The performance of the
cooling circuit “B” gets
worse.
Warning:
Cooling Circuit ‘B’ Abnormal
●
When “disconnecting/short-circuit of the thermal sensor” and “condenser temp. abnormality” are
activated at the same time, safety operation of compressor OFF is prioritized.
(Ex.) When “disconnecting of the thermal sensor” and “condenser A temp. abnormality” are activated at
the same time;
Compressor A: OFF
Compressor B: Continuous running
●
The self-diagnosis time of “cooling circuit abnormality” cannot be changed. Depending on the operating
environment and condition, self-diagnosis time may be shifted or this function may not perform.