SMC Networks HRSE012-A, Руководство по эксплуатации

Страница: 70 / 93

HRX-OM-R039
Chapter 6 Alarm indication and trouble shooting
6.4 Other Errors HRSE Series
6-4
Table 6-1 Alarm code list and Troubleshooting
Code Descriptioin Operation
Cause / Remedy
(Press the reset key after eliminating the cause.)
AL02
High circulating fluid
discharge temp.
Stop
- Reduce the ambient temperature or heat load.
-
Check that the ventilation port is not closed.
AL03
Circulating fluid discharge
temp. rise Continued

1
AL04
Circulating fluid discharge
temp. Continued

1
Check the ambient temperature condition and the
temperature of supplied circulating fluid.
AL07 Abnormal pump operation Stop
- Flow rate of the circulating fluid is 4L/min. or less.
Improve the piping to increase the flow rate to more
than 4L/min.
- Check the piping and the pump to make sure that no
foreign matter in the circulating fluid is clogged in
them.
AL15
Refrigerant circuit pressure
(high pressure side) drop
Stop
- Check the ambient temperature is within the specified
range.
- It is possible that refrigerant is leaking. Ask for the service.
AL20
Memory error
Stop
Written data is different from read data. Ask for the service
of RAM.
AL22
Circulating fluid discharge
temp. sensor failure
Stop
The temperature sensor is short-circuited or opened.
Ask for the service of the temperature sensor.
AL24
Compressor intake temp.
sensor failure
Stop
AL26
Compressor discharge
pressure sensor failure
Stop
The pressure sensor is short-circuited or opened.
Ask for the service of the pressure sensor.
AL27
Heat exchanger inlet temp.
sensor failure
Stop
The temperature sensor is short-circuited or opened.
Ask for the service of the temperature sensor.
AL28
Maintenance of pump
Continued
The timing of a periodical check is informed.
Recommended to ask for the check and service of the
pump, fan motor and compressor.
*Refer to’’5.8 Accumulated time reset function’’.
AL29 Maintenance of fan motor Continued
AL30 Maintenance of compressor Continued

1
:
’’Stop” or “Continued” are default settings. The user can change them to “Continued” and “Stop”. For details, refer
to
’’5.6 Alarm customize function’’.
6.4 Other Errors

How to check other errors
The causes and remedies for failures that are not indicated by alarm
numbers are shown in
’’
Table
6
-
2 Causes and remedies for failures without
alarm number
’’.
Table 6-3 Causes and remedies for failures without alarm number
Content of failure
Cause Remedy
The operation panel
displays nothing
No power supply
- Turn ON the electrical leakage breaker
of the original power supply (the
breaker of the user's equipment), and
supply power to the thermo chiller.
- Connect the plug of the power supply
cable to an outlet to supply power.
Blown fuse
Overcurrent has been caused due to
short-circuit, etc.
The blown fuse needs to be replaced,
and causes of the overcurrent must be
removed.
The [RUN] LED does
not light up even when
the [RUN/STOP] switch
is pressed.
Failure of the [RUN] LED Replace the display.
Failure of the [RUN/STOP] switch Replace the display.