HP Modular Cooling System Installationshandbuch PDF herunterladen (Seite 53)

Environmental considerations

Table 13: Recommended environmental specifications

Parameter Value

Room Temperature

Recommended Minimum/Maximum

Allowable Minimum/Maximum

18°C (64.4°F)/27°C (80.6°F)

15°C (59°F)/32°C (90°F)

Humidity:

Recommended Minimum

Recommended Maximum

Allowable range

5.5°C (41.9°F) dew point

60% relative humidity and 15°C (59°F) dew point

20%–-80%

Note:

The temperatures stated are for an elevation of 0 to 5000 feet above sea

level. The maximum operating temperatures must be de-rated by 1ºC per

1000 feet for locations 5000 to 10,000 feet above sea level.

Control system

The MCS 5042 includes a control system that constantly monitors the air temperatures, water

temperatures, and flow rate. The management module attempts to maintain the air temperature at the

target set point. If the set point temperature cannot be maintained, the MCS 5042 management

module will generate an alarm and notify facility management systems as configured.

Note:

For site evaluations and technical consulting services for your site, see the

HP mc-Series 5042 User Guide.

Before installing and running active components

Prior to starting up any active components (servers, storage devices, and so on) mounted in the MCS

5042, the following steps must be performed:

1. Ensure that the chilled water source is on and flowing prior to the start-up of an MCS 5042.

2. Ensure that the MCS 5042 is fully operational and running before turning on the servers and

closing the front and rear cabinet doors.

Caution:

If the MCS 5042 is left running in manual mode for a period of time

without an adequate heat load being generated by servers or other

computing and networking devices, excess condensation might occur within

the cabinet or system.

For more information on the installation of the MCS 5042, see the MCS 5042 documentation on the

HP website (

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?

contentType=SupportManual&lang=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=34475

89&prodSeriesId=3657806).

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