HP xw2x220c Blade manual Recommended operating environment, Ashrae

Recommended operating environment

To help ensure continued safe and reliable equipment operation, install or position the rack in a well ventilated, climate-controlled environment.

Air inlet temperature to the rack should be between 20 to 25ºC under normal operating conditions in the data center, per ASHRAE standard TG9 HDEC.

The following table shows product technical requirements based on customer environments.

		Operating Environment (ambient)1
		Temperature (ºC, dry bulb)2		Relative humidity %;
				noncondensing
Environment	Industry	Allowable4	Recommended6	Allowable5	Recommended6	Dew	Rate of
	equivalent3	,5				point	chg
	ASHRAE					(max)7	(ºC/hr,
							max)
Controlled	1	15 to 32	20 to 25	20 to 80	40 to 55	17	5
computer room
Controlled office	2	10 to 35	20 to 25	20 to 80	40 to 55	21	5
Uncontrolled	3	5 to 35	NA8	8 to 85	NA8	28	NA8
office
Home	3	5 to 35	NA8	8 to 85	NA8	28	NA8
Light industrial	4	5 to 40	NA8	8 to 90	NA8	28	NA8
Portable/mobile	4	5 to 40	NA8	8 to 90	NA8	28	NA8
Special	Product specifications are controlled by contract or other requirements.

1The maximum elevation for all operating environmental classes is 3050 m.

2Dry bulb temperature is the regular ambient temperature. Derate maximum dry bulb temperature 1ºC/300 m above

900m.

3The values in each row meet or exceed the stated industry equivalent class specifications.

4With installed media, the minimum temperature is 10ºC and maximum relative humidity is limited to 80%. Specific media requirements may vary.

5Allowable: equipment design extremes as measured at the equipment inlet.

6Recommended: target facility design and operational range.

7Must be noncondensing environment.

8Local product groups must make business decisions for the appropriate values.

The operating temperature inside the rack is always higher than the room temperature and is dependent on the configuration of equipment in the rack. Check the TMRA for each piece of equipment before installation.

CAUTION: To reduce the risk of damage to the equipment when installing third-party options:

•Do not permit optional equipment to impede airflow around the enclosure or to increase the internal rack temperature beyond the maximum allowable limits.

•Do not exceed the manufacturer’s TMRA.

Environmental requirements 18