Specifications

5.2Environmental 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

25°C ambient

 

 

Temperature

 

 

 

 

 

Maximum Operating

40°C ambient (design temperature) without derating (see Notes 1- 3).

Temperature

 

 

 

Minimum Operating

0°C

 

 

Temperature

 

 

 

 

 

Storage Temperature

-20°C to 70°C

 

 

 

 

Typical Battery

Average annual temperature shall not exceed 27°C. Peak temperature shall not exceed

Temperature Requirements

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

62-69 dBA typical for 100-450kVA units

 

72 dBA typical for 500-750kVA units

 

5 feet from unit

 

75 dBA typical for 1000kVA units

 

 

 

 

 

 

 

 

98% at 45°C

 

 

 

 

 

 

Derating for Higher

96% at 50°C

 

 

 

 

 

93% at 55°C

 

 

Ambient Temperatures

 

 

(see Note 3)

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 @ 104°F (40°C)

% Derating @ 95°F (35°C)

 

Elevation-ft. (m)

Ambient (see Note 3)

Ambient (see Note 3)

 

5000 (1524)

98%

100%

 

 

 

 

 

5249 (1600)

98%

100%

 

 

 

 

Derating for Higher

5906 (1800)

97%

99%

 

 

 

6562 (2000)

96%

98%

Elevations

(see Note 4)

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.

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Liebert 1000kVA manual Environmental Conditions, Specifications applicable to environment