Disassembly; Troubleshooting - Emerson SmartCabinet User Manual

92 Chapter 7 Maintenance

7.3 Disassembly

SmartCabinet has substance and components (electronic elements) harmful to environment. Only professional
technicians are allowed to disassemble SmartCabinet after the product life is ended. SmartCabinet must be send to
special harmful substance handling center.

7.4 Troubleshooting

Judge possible causes for the fault through the run data and alarm information in the MSC-C monitoring system, and
take measures against the faults, see Table 7-2.
Fault phenomenon
Environmental high
temperature alarm
Temperature unbalance
Door sensor alarm
Water leakage detective
belt sensor alarm
PDU over-load alarm
Fan cannot start
AC high pressure alarm
Low pressure alarm
High temperature alarm
Low temperature alarm
Table 7-2 Troubleshooting
Possible cause
Unreasonable High temperature setpoint
Use in overload
Fan does not run normally
Fan is faulty
The AC refrigeration output is faulty
The closed doors are not closed completely
There are obstruct in the closed aisle
The user equipment are installed unevenly
The loads fluctuate violently in short term
The closed doors are not closed completely
The door sensor is not installed well or
damaged
There are water in the detection belt area
AC condensate water leakage
PDU exceeds the load setpoint
The power distribution or the PDU output
has a short circuit
Fan doesn't run normally
Fan is faulty
Insufficient condensing airflow
Condenser fan not operating
Refrigerant leakage
Outdoor ambient temperature too low
Outdoor unit fan running at full speed upon
low outdoor ambient temperature
High temperature setpoint is unreasonable
Use in overload
Low temperature setpoint is unreasonable
SmartCabinet Integrated Solution User Manual
Check or remedy
Check and reset the high-temperature alarm point of
the temperature sensors on the front door
View whether the max. actual heating load is over the
rated value
Check whether the fan air breaker is closed
Call the customer service hotline of Emerson:
4008876510
Call the customer service hotline of Emerson:
4008876510
Check all closed doors and close them
Check whether the equipment or the cables obstruct
the closed aisle
Refer to this manual, adjust the cabinet loads until
they are balanced
View whether the large fluctuation exists in the actual
loads
Check all closed doors and close them
Readjust the installation clearance or call the
customer service hotline of Emerson: 4008876510
Check the leaking place in the computer room
Check that the connection of the condensate water
pipes is reliable
Check the actual load power of single PDU
Check and clear up the risk of short circuit
Check whether the fan MCB is closed
Call the customer service hotline of Emerson:
4008876510
Remove debris from coil and air inlet; check the fan
speed controller for its speed regulation performance
Check that the cable connections of the fan speed
controller are tight; check that the cable connections
of the outdoor unit are tight; check that the fan speed
controller L1 has output; check that the condensate
pressure sensor works normally
Check for leaking place and re-charge refrigerant
Call the customer service hotline of Emerson:
4008876510
Check that the L1 is connected with L in fan speed
controller; check that the condensate pressure sensor
is connected with the fan speed controller tightly
Reset the setpoint of high temperature alarm
Check the actual thermal power of the equipment in
the cabinet
Reset the setpoint of low temperature alarm