Dell PowerEdge R220 - Page 41

Dell PowerEdge R220 Technical Guide 40
Fresh Air: temperature, humidity, altitude de-rating
Continuous
operation
10°C to 35°C (50°F to 95°F) at 10% to 80% relative humidity with 29°C (84.2°F) maximum
dew point (maximum wet bulb temperature). De-rate maximum allowable dry bulb
temperature at 1°C per 300m above 950m (1°F per 547ft above 3117ft).
Expanded
operation
When operating in the expanded temperature range, system performance may be impacted,
and ambient temperature warnings may be reported in the System Event Log.
≤ 10% of annual operating hours: 5°C to 10°C and 35°C to 40°C (with no direct sunlight on
the equipment) at 5% to 85% relative humidity with 26°C dew point (maximum wet bulb
temperature). Outside the standard operating temperature (10°C to 35°C), the system can
operate down to 5°C or up to 40°C for a maximum of 10% of its annual operating hours. For
temperatures between 35°C and 40°C (95°F to 104°F), de-rate maximum allowable dry bulb
temperature by 1°C per 175m above 950m (1°F per 319ft above 3117ft).
≤ 1% of annual operating hours: –5°C to 5°C and 40°C to 45°C (with no direct sunlight on
the equipment) at 5% to 90% relative humidity with 26°C dew point (maximum wet bulb
temperature). Outside the standard operating temperature (10°C to 35°C), the system can
operate down to –5°C or up to 45°C for a maximum of 1% of its annual operating hours. For
temperatures between 40°C and 45°C (104°F to 113°F), de-rate maximum allowable dry bulb
temperature by 1°C per 125m above 950m (1°F per 228ft above 3117 ft).
Expanded operation restrictions:
 No cold startup below 5°C
 Maximum altitude for the operating temperature must be 3050m (10,000ft)
 Not supported:
— Peripheral cards not qualified by Dell
— Peripheral cards greater than 25W
— PCIe SSD drives
— GPU cards
— Express flash
— LRDIMM
— Non-redundant PSU configurations
Temperature
Operating
See Fresh Air for temperature information
Storage
–40°C to 65°C (–40°F to 149°F) with a maximum temperature gradation of 20°C per hour
Relative humidity
Operating
See Dell Fresh Air for relative humidity information
Storage
5% to 95% at a maximum wet bulb temperature of 33°C (91°F); atmosphere must be non-
condensing at all times
Maximum vibration
Operating
0.26 Grms at 5–350Hz for 15 min (in all operation orientations)
Storage
1.87 Grms at 10Hz to 500Hz for 15 minutes (all six sides tested)
Maximum shock
Operating
One shock pulse in the positive z axis (one pulse on each side of the system) of 31 G for
2.6ms in the operational orientation.
Storage
Six consecutively executed shock pulses in the positive and negative x, y and z axes (one
pulse on each side of the system) of 71 G for up to 2 ms.
Six consecutively executed shock pulses in the positive and negative x, y and z axes (one
pulse on each side of the system) of 32 G faired square wave pulse with velocity change at
270 inches/second (686 centimeters/second).