Overview
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1.4. Main Components
The main components of the Vertiv
™
Liebert® XDO terminal unit include evaporator, EC fan, electronic expansion valve, filter
net, dry filter, drain pump, and power module.
1.4.1. Evaporator
The finned tube heat exchanger with high heat dissipation efficiency, and the V-shaped symmetrical layout is adopted with
an elegant design that improves the efficiency of the heat exchange.
1.4.2. EC Fan
The unit is equipped with highly energy efficient fans with large air volume, high air pressure, low power consumption,
real-time adjustable fan speeds in accordance to the terminal cooling demand, which provide more energy-saving and more
reliable performance.
1.4.3. Electronic Expansion Valve (EEV)
The unit is provided with electronic expansion valve to adjust the flow of refrigerant more accurately and ensure the
uniformity of flow distribution at each terminal. This also helps in monitoring the temperature and pressure signals of the
flow simultaneously.
Figure 1-2 Electronic Expansion Valve (EEV)
1.4.4. Filter Net
Liebert XDO unit is provided with a filtration net, which is highly efficient in protecting the unit by filtering the impurities and
dust in the air.
1.4.5. Dry Filter
The dry filter can effectively filter the moisture and impurities generated in the long-term operation of the system to ensure
the normal operation of the system.
