Interruption of Operation
Page 45
Operating manual LC 340.01-A.3.5/6
Current revision status: Apr 4, 2019
Incorrect line voltage
Incorrect line Voltage
Please check that the
line voltage is within the
specified limits
Incorrect line frequency
Incorrect line frequency
Please check that the
line frequency is within
the specifications
Defective compressor
Defective compressor
Exchange the
refrigerant module
Reset of the alarm:
After resolving the problem:
-
Reset the motor protection switch in position 1
-
Reset by pushing reset button in LaserNet
8.2.5.6 Refrigerant circuit
– Over current fan
Alarm indication:
Alarm lamp
“
Alarms /
Overcurrent”
is lighting red. In the page
“Events“
“Overcurrent of fan”
will be indicated.
Action:
This alarm will stop chiller operation. For possible reasons please see table 8.2.5.5.
Reset of the alarm:
After resolving the problem:
-
Reset the motor protection switch in position 1
-
Reset by pushing reset button in LaserNet
8.2.6 SENSOR FAILED ALARM
8.2.6.1 Laser cooling circuit
– Error temperature sensor
Alarm indication:
Alarm lamp
“
Alarms /
Sensor failed”
is lighting red. In the page
“Events“
“Tap
water temperature sensor is defect
”
will be indicated.
Action:
This alarm will stop chiller operation. Please check following reasons step by step:
Failure
Reason
Corrective action
Sensor fault
a) Sensor fault
a) Replace the sensor
Bad contact
a) Cable loose
a) Check the terminals for
contact
Reset of the alarm:
After solving the problem, you can reset the alarm by pushing the reset button in