Model D20 Specifications
Dimensions
Height 178 mm (7.0 in)
Width 445 mm (17.5 in)
Depth 610 mm (24.0 in)
Maximum Weight 45.9kg (101 lbs)
Electrical
Power source loading
(max.)
0.358 kVA
Voltage range 100 to 240 V ac, V dc not supported
Frequency 50 or 60 Hz
Thermal output (typical) 774 Btu/hr
Thermal output (max.) 1161 Btu/hr
Power requirements
(typical)
227 watts
Power requirements for
two 7311-D20 (max.)
340 watts
Power factor 0.91
Inrush current² 60 amps
Maximum altitude
3, 4
3048 m (10,000 ft.)
Temperature
Requirements³
Operating
5 to 35°C
41 to 95°F)
Non-Operating
1 to 43°C
(34 to 109°F)
Storage
1 to 60°C
(34 to 140°F)
Humidity
Requirements⁴
Operating Non-Operating Storage
(Noncondensing) 8 to 80% 8 to 80% 5 to 80%
Wet Bulb 23°C (73°F) 27°C (81°F) 29°C (84°F)
Noise Emissions
1, 5
Operating Idle
L
WAd
6.1 bels 6.0 bels
<L
pA
>
m
44 dBA 43 dBA
Install/Air Flow Maintenance of service clearance will allow proper air flow.
Service Clearances See 7014 Model T00 and T42 Rack for T00 or T42 rack service
clearances.
1. See 202 for definitions of noise emissions positions. See noise emissions note 4.
2. Inrush currents occur only at initial application of power, no inrush occurs during normal
power off-on cycle.
3. The upper limit of the dry bulb temperature must be derated 1 degree C per 137 m (450 ft.)
above 915 m (3000 ft.).
4. The upper limit of the wet bulb temperature must be derated 1 degree C per 274 m (900 ft. )
above 305 m (1000 ft.).
38 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
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