94 Chapter 7 Maintenance
SmartCabinet Series Solution Product for IDC or Computer Rooms User Manual
UPS Power Distribtuion System Maintenance
Fan Maintenance
The UPS fans are intended to run for 20000 hours ~ 40000 hours continuously. The higher the environmental
temperature is, the shorter the fan life will be.
During UPS operation, verify the fan status once every half a year by confirming that the airflow can blow out from the
ventilation holes on the rear panel of the UPS.
Checking UPS status
Clean the UPS periodically, especially the ventilation holes, to ensure free airflow inside the UPS. If necessary, clean
the UPS with a vacuum cleaner. Confirm that the ventilation holes are unobstructed.
It is recommended to check the UPS operation status once every half a year.
Check the following items:
1. Check whether the UPS is faulty: Is the FAULT indicator on? Is the UPS giving any alarm?
2. Check whether the UPS is operating in Bypass mode. Normally, the UPS operates in Normal mode; if it operates in
Bypass mode, find out the reason, such as operator intervention, overload, internal fault, and so on.
3. Check whether the battery is discharging: When mains is normal, the battery should not discharge; if the UPS
operates in Battery mode, find out the reason, such as mains failure, battery test, operator intervention, and so on.
Note
Refer to
Liebert
®
ITA 3kVA UPS User Manual , Liebert
®
ITA2 5kVA
～
20kVA UPS User Manual
for the detailed maintenance
operation and replacing instructions.
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 intelligent monitoring
system, and take measures against the faults, see Table 7-3.
Table 7-3 Troubleshooting
Fault phenomenon
Possible cause
Check or remedy
Environmental high
temperature alarm
Unreasonable High temperature setpoint
Check and reset the high-temperature alarm point of the
temperature sensors on the front door
Use in overload
View whether the max. actual heating load is over the
rated value
Fan does not run normally
Check whether the fan air breaker is closed
Fan is faulty
Call the customer service hotline of Vertiv: 4008876510
The AC refrigeration output is faulty
Call the customer service hotline of Vertiv
The closed doors are not closed completely
Check all closed doors and close them
Temperature
unbalance
There are obstruct in the closed aisle
Check whether the equipment or the cables obstruct the
closed aisle
The user equipment are installed unevenly
Refer to this manual, adjust the cabinet loads until they
are balanced
The loads fluctuate violently in short term
View whether the large fluctuation exists in the actual
loads
Door sensor alarm
The closed doors are not closed completely
Check all closed doors and close them
The door sensor is not installed well or
damaged
Readjust the installation clearance or call the customer
service hotline of Vertiv
