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5.2 Environmental Conditions
Table 17 Specifications applicable to environment
Enclosure
The UPS is housed in a NEMA-1 enclosure. The enclosure is designed for indoor use only
and is not to be subjected to falling objects or precipitation.
Recommended Operating
Temperature
25°C ambient
Maximum Operating
Temperature
40°C ambient (design temperature) without derating (see Notes 1- 3).
Minimum Operating
Temperature
0°C
Storage Temperature
-20°C to 70°C
Typical Battery
Temperature Requirements
Average annual temperature shall not exceed 27°C. Peak temperature shall not exceed
43°C during any 24-hour period. See battery manufacturer’s recommendations.
Relative Humidity 0 to 95% without condensation
Operating Elevation Sea level to 1219 meters (4000 ft.) without derating
Storage Elevation Sea level to 15,000 meters (50,000 ft.)
Audible Noise, measured
5 feet from unit
62-69 dBA typical for 100-450kVA units
72 dBA typical for 500-750kVA units
75 dBA typical for 1000kVA units
Derating for Higher
Ambient Temperatures
(see Note 3)
98% at 45°C
96% at 50°C
93% at 55°C
Consult your Liebert sales representative regarding applications in high ambient
temperatures or call 1-800-LIEBERT. Special temperature sensors must be installed at the
factory.
Derating for Higher
Elevations
(see Note 4)
Elevation-ft. (m)
% Derating @ 104°F (40°C)
Ambient (see Note 3)
% Derating @ 95°F (35°C)
Ambient (see Note 3)
5000 (1524) 98% 100%
5249 (1600) 98% 100%
5906 (1800) 97% 99%
6562 (2000) 96% 98%
7218 (2200) 95% 97%
7874 (2400) 94% 96%
8530 (2600) 93% 95%
9186 (2800) 92% 94%
9843 (3000) 90% 92%
NOTES
1. This category of electronic equipment is agency rated for use in an atmosphere free of conductive particles. Some industrial facilities
may require a room air filtration system to keep the UPS free of excess moisture and contaminants.
2. The UPS system is designed to operate continuously at 40°C. However, design equipment life expectancy will be extended with lower
temperatures (25°C is recommended).
3. Ambient temperature is the maximum ambient temperature during any 24-hour period. For operation at higher ambient temperatures,
consult your Liebert sales representative or call Liebert Global Services at 1-800-LIEBERT.
4. Exercise care during installation to ensure unimpeded airflow through the UPS system. For operation at higher elevations, consult your
Liebert sales representative or call Liebert Global Services at 1-800-LIEBERT.