Installing Indoor Unit; Preparing Equipment Room; Installation Space - Liebert DM User Manual

2.4 Installing Indoor Unit

2.4.1 Preparing Equipment room

The requirements of equipment room are as follows:
1. Damp proof and heat preservation must be done to make sure that the system can operate normally.
2. The equipment room should have good heat insulation and sealed damp proof layer. The damp proof layer of the
ceiling and walls must use polyethylene film, and the coating of the concrete wall and the floor must be damp proof.
3. Prevent the outdoor air from entering the equipment room, because the outdoor air that enters the equipment room
may increase the load of heating, cooling, humidifying and dehumidification of the system. It is recommended that the
inhalation of outdoor air be kept below 5% of the total indoor airflow.
4. All the doors and windows should be closed and the seams should be as narrow as possible.

2.4.2 Installation Space


Note
Liebert_DM 16kW air conditioner system will generate condensed water, and water leakage may damage the precision
equipment nearby. So do not install the system in the vicinity of any precision equipment, and the installation site must provide
draining pipes.
1. To ensure normal operation, the installation space for the indoor unit shall be capacious enough.
2. Too small space for the indoor unit will baffle the airflow, shorten the cooling cycle; the air supply and air exhaust
may mix, and the decibel may rise.
3. Do not place the indoor unit in a concave or at the end of a strip area.
4. Do not huddle multiple indoor units, lest there should be mixed airflow, unbalanced load and competitive operation.
Fan
风机
Figure 2-11 Appearance of outdoor unit
1385
Figure 2-12 Dimensions and mechanical parameters of outdoor unit
Liebert_DM 16kW Air Conditioner User Manual
Chapter 2 Mechanical Installation
Electrical control box(there is a fan speed
电控盒（内有风
controller inside)
机转速控制器）
Pressure sensor
压力传感器
664
9