Dell PowerEdge R760 Installation and Service Manual

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Environmental specifications

NOTE:For additional information about environmental certifications, refer to the Product Environmental Datasheet located with the Documentation on Dell Support.
Table 1. Continuous Operation Specifications for ASHRAE A2 This table describes the operational climatic range for category A2.
Temperature Specifications
Allowable continuous operations
Temperature range for altitudes <= 900 m (<= 2953 ft) 10–35°C (50–95°F) with no direct sunlight on the equipment
Humidity percent range (non-condensing at all times) 8% RH with -12°C (10.4°F) minimum dew point to 80% RH with 21°C (69.8°F) maximum dew point
Operational altitude de-rating Maximum temperature is reduced by 1°C/300 m (1.8°F/984 Ft) above 900 m (2953 Ft)
Table 2. Continuous Operation Specifications for ASHRAE A3 This table describes the operational climatic range for category A3.
Temperature Specifications
Allowable continuous operations
Temperature range for altitudes <= 900 m (<= 2953 ft) 5–40°C (41–104°F) with no direct sunlight on the equipment
Excursion Limited Operation 5-35°C (41-95°F) Continuous Operation
35-40°C (95-104°F) 10% Annual Runtime
Humidity percent range (non-condensing at all times) 8% RH with -12°C (10.4°F) minimum dew point to 85% RH with 24°C (75.2°F) maximum dew point
Operational altitude de-rating Maximum temperature is reduced by 1°C/175 m (1.8°F/574 Ft) above 900 m (2953 Ft)
Table 3. Continuous Operation Specifications for ASHRAE A4 This table describes the operational climatic range for category A4.
Temperature Specifications
Allowable continuous operations
Temperature range for altitudes <= 900 m (<= 2953 ft) 5–45°C (41–113°F) with no direct sunlight on the equipment
Excursion Limited Operation 5-35°C (41-95°F) Continuous Operation
35-40°C (95-104°F) 10% Annual Runtime
40-45°C (104-113°F) 1% Annual Runtime
Humidity percent range (non-condensing at all times) 8% RH with -12°C (10.4°F) minimum dew point to 90% RH with 24°C (75.2°F) maximum dew point
Operational altitude de-rating Maximum temperature is reduced by 1°C/125 m (1.8°F/410 Ft) above 900 m (2953 Ft)
Table 4. Common Environmental Specifications for ASHRAE A2, A3 and A4 This table describes the shared requirements across all categories.
Temperature Specifications
Allowable continuous operations
Maximum temperature gradient (applies to both operation and non-operation) 20°C in an hour* (36°F in an hour) and 5°C in 15 minutes (9°F in 15 minutes), 5°C in an hour* (9°F in an hour) for tape hardware
NOTE:* - Per ASHRAE thermal guidelines for tape hardware, these are not instantaneous rates of temperature change.
Non-operational temperature limits -40 to 65°C (-40 to 149°F)
Non-operational humidity limits 5% to 95% RH with 27°C (80.6°F) maximum dew point
Maximum non-operational altitude 12,000 meters (39,370 feet)
Maximum operational altitude 3,050 meters (10,006 feet)
Table 5. Maximum vibration specificationsThe maximum vibration specification of an operational system is 0.26 Grms at 5 Hz to 350 Hz (all operation orientations).The maximum vibration specification of a nonoperational system is 1.88 Grms at 10 Hz to 500 Hz for 15 minutes (all six sides tested).
Maximum vibration Specifications
Operating 0.21 Grms at 5 Hz to 500 Hz for 10 minutes (all operation orientations)
Storage 1.88 Grms at 10 Hz to 500 Hz for 15 minutes (all six sides tested)
Table 6. Maximum shock pulse specificationsThe maximum shock specification of an operational system is six consecutively executed shock pulses in the positive and negative x, y, and z axis of 40 G for up to 2.3 ms. The maximum shock specification of a nonoperational system is six consecutively executed shock pulses in the positive and negative x, y, and z axis (one pulse on each side of the system) of 71 G for up to 2 ms.
Maximum shock pulse Specifications
Operating Six consecutively executed shock pulses in the positive and negative x, y, and z axis of 6 G for up to 11 ms
Storage Six consecutively executed shock pulses in the positive and negative x, y, and z axis (one pulse on each side of the system) of 71 G for up to 2 ms

Particulate and gaseous contamination specifications

The following table defines the limitations that help avoid any equipment damage or failure from particulates and gaseous contamination. If the levels of particulates or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may need to rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer.
Table 7. Particulate contamination specificationsAir filtration specification: Data center air filtration as defined by ISO Class 8 per ISO 14644-1 shpuld have a 95% upper confidence limit. Note: This condition applies only to data center environments. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor. Note: Air entering the data center must have MERV11 or MERV13 filtration. Conductive dust specification: Air must be free of conductive dust, zinc whiskers, or other conductive particles. Note: This condition applies to data center and non-data center environments. Corrosive dust specification: Air must be free of corrosive dust. Residual dust present in the air must have a deliquescent point less than 60% relative humidity. Note: This condition applies to data center and non-data center environments.
Particulate contamination Specifications
Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit
NOTE:This condition applies to data center environments only. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor.
NOTE:Air entering the data center must have MERV11 or MERV13 filtration.
Conductive dust Air must be free of conductive dust, zinc whiskers, or other conductive particles
NOTE:This condition applies to data center and non-data center environments.
Corrosive dust
  • Air must be free of corrosive dust
  • Residual dust present in the air must have a deliquescent point less than 60% relative humidity
NOTE:This condition applies to data center and non-data center environments.
Walk-Up Edge Data Center or Cabinet (sealed, closed loop environment) Filtration is not required for cabinets that are anticipated to be opened 6 times or less per year. Class 8 per ISO 1466-1 filtration as defined above is required otherwise
NOTE: In environments commonly above ISA-71 Class G1 or that may have known challenges, special filters may be required.
Table 8. Gaseous contamination specificationsThe copper coupon corrosion rate is <300 Å/month per Class G1 as defined by ANSI/ISA71.04-2013. The silver coupon corrosion rate is <200 Å/month as defined by ANSI/ISA71.04-2013.
Gaseous contamination Specifications
Copper coupon corrosion rate <300 Å/month per Class G1 as defined by ANSI/ISA71.04-2013
Silver coupon corrosion rate <200 Å/month as defined by ANSI/ISA71.04-2013

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