Preparation For Use Liebert EXL S1
18 User Manual 10H52226UM60 - Rev. 1 - 01/2017
2.5. Environmental conditions
The UPS must be installed vertically, on a level and even surface, and in an area protected from
extremes of temperature, water and humidity. Do not stack the units or place objects on top of them.
The operating temperature range of the UPS is 0°C-40°C.
The ideal environmental temperature range is 15°C to 25°C. The battery life is specified for 20°C. Each
increment of 10°C above 25°C reduces the expected life by 50%.
2.5.1. Installation altitude
The maximum operating altitude of the UPS, without derating, is 1000m. At higher altitudes the load
must be reduced according to Fig. 3.
Figure 3 - Permissible load dependent on installation altitude
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