Environmental Specifications

Temperature

• Operating temperature: 5°C to 45°C (41°F to 113°F) (ASHRAE Classes A2 to A4 compliant)
• Storage temperature (≤ 72 hours): –40°C to +65°C (–40°F to +149°F)
• Long-term storage temperature (> 72 hours): 21°C to 27°C (69.8°F to 80.6°F)
• Maximum rate of temperature change: 20°C (36°F) per hour, 5°C (9°F) per 15 minutes

Relative humidity (RH, non-condensing)

• Operating humidity: 8% to 90%
• Storage humidity (≤ 72 hours): 5% to 95%
• Long-term storage humidity (> 72 hours): 30% to 69%
• Maximum change rate: 20%/h

Air volume

≥ 196 cubic feet per minute (CFM)

Altitude

• Operating altitude ≤ 3050 m (10006.44 ft)
  • If the server complies with ASHRAE Class A2, the maximum operating temperature decreases by 1°C (1.8°F) for every increase of 300 m (984.25 ft) in altitude above 900 m (2952.76 ft).
  • If the server complies with ASHRAE Class A3, the maximum operating temperature decreases by 1°C (1.8°F) for every increase of 175 m (574.15 ft) in altitude above 900 m (2952.76 ft).
  • If the server complies with ASHRAE Class A4, the maximum operating temperature decreases by 1°C (1.8°F) for every increase of 125 m (410.10 ft) in altitude above 900 m (2952.76 ft).
• HDDs cannot be used at an altitude of over 3050 m (10006.44 ft).

Corrosive gaseous contaminant

Maximum corrosion product thickness growth rate:

• Copper corrosion rate test: 300 Å/month (meeting level G1 requirements of the ANSI/ISA-71.04-2013 standard on gaseous corrosion)
• Silver corrosion rate test: 200 Å/month

Particle contaminant

• The equipment room environment meets the requirements of ISO 14664-1 Class 8.
• There is no explosive, conductive, magnetic, or corrosive dust in the equipment room.

Acoustic noise

The declared A-weighted sound power levels (LWAd) and declared average bystander position A-weighted sound pressure levels (LpAm) listed are measured at 23°C (73.4°F) in accordance with ISO 7779 (ECMA 74) and reported in accordance with ISO 9296 (ECMA 109).

• Idle:
  • LWAd: 5.3 Bels
  • LpAm: 38.1 dBA
• Operating:
  • LWAd: 6.3 Bels
  • LpAm: 48.2 dBA