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Overview
Chapter 1: Overview
This chapter introduces the model description, product introduction, basic parameters, main components, optional
components, and ambient requirements of Vertiv™ Liebert® DM air conditioner (hereafter Liebert® DM).
1.1. Product Introduction
The Liebert DM AC is a small precise environment control system, specially designed for cooling the electrical equipment
room/ small IT room. It is applicable to environment control in equipment room, computer room and similar eco-system.
Featuring high reliability, it can maintain a favorable environment for precision equipment such as sensitive equipments,
industrial processing equipments, communication equipments, and computers.
The Liebert DM AC has a micro-processing controller that can automatically switch over to the required function (cooling
or heating, dehumidifying or humidifying), based on the advance programmed algorithm, setpoints and room ambient
conditions. The cooling kit is provided as standard that can precisely control the ambient temperature. An electrical heater
and the humidifier are provided as options to precisely control the ambient humidity. If the AC unit is only available for
cooling, the optional components are not needed. Each Liebert DM unit consists of an indoor unit and the outdoor unit,
these units must be installed on the seperate floors or rooms.
1.1.1. Indoor unit
Liebert DM series air conditioner with 07 kW/12 kW/17 kW/22 kW/27 kW cooling capacity used in 400 V (±10%) three-phase
power supply distribution.
DME07 Upflow Model
DME12 Upflow Model
DME17 Upflow Model
Figure 1-1 Liebert DM Indoor Unit (07 kW, 12 kW, and 17 kW)
Vertiv™ | Liebert® DM | User Manual
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