Vertiv | Liebert XDH | User Manual
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Product Overview
Chapter 1: Product Overview
This chapter introduces the product description, model description, product appearance and main components
of the XDH precision air conditioner. The Liebert®XDH™ high heat density precision air conditioner (hereinafter
referred to as “XDH”) is a specially engineered equipment for the applications which does not permit any
unauthorized and unqualified access in the system. It must be used only by professionally trained personnel if it
is placed in shopping malls, light industry, or any business environment.
1.1.Product Introduction
The XDH precision air conditioner is a precision environment control equipment for small to medium-
sized server rooms, data hall and similar ecosystems that also calls for energy-saving and high heat density
requirements. It is specifically designed to ensure that equipment providing precisely controlled output
performance such as sensitive equipments, industrial process equipments, communication equipments and
other types of computing equipments should have a reasonable and safe operating environment.
The XDH features high reliability, high sensible-heat ratio and high airflow rate. The XDH operates on R410A/
R134a environment friendly refrigerant that adheres to the international standards. The XDH precision air
conditioner is also equipped with a high-efficiency micro-channel evaporator coil (heat exchanger) which has a
profound design and layout that results in an excellent heat exchanging performance. It is combined with an EC
fan that delivers large airflow rate with low energy consumption, which increases the operational efficiency of
the unit drastically. An electronic expansion valve helps to evenly distribute the refrigerant flow in an intelligent
way to accommodate the variations in the cooling load.
XDH architecture is an effective and efficient solution to the problem of heat dissipation in server rooms with
high heat density and it is installed where cooling load changes drastically.
