Western Digital WDE2170, WDE4360 Temperature and Humidity, Cooling, Component Location Maximum

SpecificationsWD Enterprise WDE2170/WDE4360

2.5.2. Temperature and Humidity

Table 2-11. Temperature and Humidity
Temperature and Humidity
Operating1
Temperature	5°C to 55°C (41°F to 131°F)
Humidity	10-90% RH non-condensing
	33°C (maximum wet bulb)
Thermal Gradient	10°C/hour (maximum)
Non-Operating
Temperature	-40°C to 60°C (-40°F to 140°F)
Humidity	5-95% RH non-condensing
	33°C (maximum wet bulb)
Thermal Gradient	20°C/hour (maximum)

1The system environment must provide sufficient air flow to limit maximum surface temperatures as defined in Table 2-12.

2.5.3. Cooling

Drive component temperatures must remain within the limits specified in Table 2-12. Figure 2-7 and Figure 2-8 show the temperature measurement locations. Sustained operation at temperatures in excess of the reliability values degrades the MTBF rating. Short excursions up to, but not exceeding, the maximum values do not affect the MTBF rating. Maximum component temperature ratings must not be exceeded under any operating condition. The drive may require forced air cooling to meet specified operating temperatures.

Table 2-12. Maximum & Reliability Operating Temperature Limits

Component	Location	Maximum
Drive Baseplate	#1, Figure 2-7.	65°C (149°F)
4915	#2, Figure 2-8.	95°C (203°F)
64C96	#3, Figure 2-8.	80°C (176°F)
2298	#4, Figure 2-8.	80°C (176°F)
1501	#5, Figure 2-8.	85°C (185°F)

Reliability1

55°C (131°F)

80°C (176°F)

65°C (149°F)

65°C (149°F)

70°C (158°F)

1Sustained operation at temperatures in excess of the reliability values degrades the MTBF rating.

16 RELEASED 04-08-97 4079-001045 Rev. B