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Chapter 2 Mechanical Installation
Model
Indoor unit
Outdoor unit
2.4 Installing Indoor Unit
2.4.1 Equipment Room Requirements
The equipment room requirements are given as follows:
1. The equipment room should be well insulated and have a sealed damp-proof layer.
Note
The most important elements for maintaining normal environmental control in the conditioned room are damp proof and heat
preservation.
2. The outdoor air should be kept from entering to a minimum. The outside air will add the loads of heating, cooling,
humidifying and dehumidifying of the system. It is recommended that the inhalation of outside air be kept below 5% of
the total indoor airflow.
3. All the doors and windows should be properly sealed to minimize the leakage and the seams should be as narrow
as possible.
2.4.2 Installation Location Requirements
Note
The Liebert_DM AC can generate condensate water. Water leakage can cause damage to other precise equipment nearby. Do not
install the AC units in the vicinity of any precision equipment. The installation site must provide drainpipes.
The installation location requirements are given as follows:
1. Try to locate the indoor unit in a capacious floor space to ensure its normal operation.
2. Avoid locating the indoor unit in confined areas that affect the airflow pattern, shorten cooling cycles and result in
down-draft and air noise.
3. Avoid locating the indoor unit in an alcove or at the extreme end of a long, narrow room.
Figure 2-5 Dimensions of Lee-Temp outdoor unit (unit: mm)
Table 2-2 Mechanical parameters of indoor unit and outdoor unit
Cooling capacity (kW)
Standard model
Lee-Temp model
New Liebert_DM Series Air Conditioner User Manual
Dimensions (W × D × H, mm)
7.5
510 × 385 × 1750
12.5
600 × 500 × 1850
7.5
787 × 352 × 829
12.5
787 × 352 × 1240
7.5
1037 × 352 × 829
12.5
1037 × 352 × 1238
Net weight (kg)
90
145
40
60
53
95
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