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| Liebert® XDC | User Manual
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1.4.2. Sight Glass
The unit is provided with a system cycle window that allows user to observe the state of the refrigerant and to determine
the moisture content of the system. When the moisture content of the system exceeds the standard, its background color
changes from green to yellow.
Figure 1-7 Sight Glass
1.4.3. Color Display Screen
Liebert XDC main unit is equipped with a 7-inch HMI color screen display configuration that has a simple user interface
and multi-level password protection which can effectively prevent the illegal operations. It has power-down self-recovery
function, and high/low voltage protection function. It can display the running status of set parameters of the components in
real time. Through the menu operation, you can accurately understand the running time of each key components.
The expert fault diagnosis system can automatically display the current fault, which helps maintenance personnel to
maintain the unit. It can store up to 1000 historical event records.
Figure 1-8 Color Display Screen
