Yuh Dak SIC-A series - Manual (Page 18)

6-2
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 If working current of the
compressor is above the setting
current of overhear 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 High pressure
alarm 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.
6
7 Buzzer
The start & stop of the pump.
Pump rotating direction should
be correct.
8 Compressor switch
Low pressure
alarm
9 Pump switch
10 Main switch Turn on/off main power.
11
Temperature
controller
Temperature setting and control.
The start & stop of the compressor.
High-pressure switch setting value
should be correctly set as 25 bar.
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 2 bar.
The buzzer makes audible alarm
when problems is detected.
Note! Before turning on the
compressor, turn on the pump first.
Please refer to page 6-4 for details.
6. Operation Guide