80(96)
No. Name Functions Remarks
3
Pump overload
indicator
When pump current exceeds the limits,
this indicator becomes bright. The
buzzer sounds and system stops
working.
Check if the motor is blocked
or the bearing is broken. If
motor works normally, please
check if the setting current of
the overload relay in the
control box is set too low.
After the above measures are
taken, wait for about 1 minute,
then press the blue "reset"
button to reset the alarm.
4
Compressor
overload alarm light
If working current of the compressor is
above the setting current of overheat
relay, the alarm will be raised. The
buzzer sounds and system stops
working.
Check if the setting current of
overheat relay is correct.
Setting current of overheat
relay should be bigger than
the rated current of the
compressor.
5
Over-pressure alarm
light
When the outlet pressure of the
compressor is higher than setting value
of high-pressure switch, the alarm will
be raised. The buzzer sounds and
system stops working.
High-pressure switch setting
value should be correctly set
as 37 bar.
6
Under-pressure
alarm light
When the inlet pressure of compressor
is lower than setting value of
low-pressure switch, the alarm will be
raised. The buzzer sounds and system
stops working.
Low-pressure switch should
be correctly set as 4 bar.。
7 Buzzer
The buzzer makes audible alarm when
problems are detected.
8 Compressor switch The start & stop of the compressor.
Note: Before turning on the
compressor, turn on the pump
first.
9 Pump switch The start & stop of the pump.
Note: Pump rotating direction
should be correct.
10
Temperature
controller
Temperature setting and controlling.
Detail information pleaserefer
to Chapter 4-4.
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