Maintenance & Troubleshooting
Vertiv | Liebert CRD10 | User Manual
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Components
Item
Remark
Refrigeration system
Check the discharge pressure
Check the refrigerant pipes
Check the moisture condition in the system through the sight glass
Heating system
Check the re-heater operation
Check the erosion situation of the components
Check and fasten the circuit connection
Electric control part
Check the fuse and the MCB
Check and fasten the circuit connections
Check the control program
Check the contactor action
Pump filter
Check if there is any foreign matter in the water tray
Check pump filter
7.3
Self-Diagnosing Functions
The micro-controller has a built-in diagnostic function that helps to turn on/off the components and check
their functionality.
7.4
Maintenance of Electrical Control Utilities
In this section, the following processes will be discussed in brief, namely-
1.
Maintenance of Electric Parts
2.
Maintenance of Control System
3.
Water-Leak-Detector
7.4.1
Maintenance of Electric Parts
Visual checks and handling needs to be carried out to check the correctness of electrical connections for the
following items:
1.
Conduct the electrical insulation test on the system to find out bad electrical connections and contacts.
Disconnect all the fuses and MCBs of the control part during the test as high voltage from the insulation test
