HP Modular Cooling System manual Environmental considerations, Control system

Models: Modular Cooling System

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Environmental considerations

Environmental considerations

Table 13: Recommended environmental specifications









Room Temperature




Recommended Minimum/Maximum

18°C (64.4°F)/27°C (80.6°F)


Allowable Minimum/Maximum

15°C (59°F)/32°C (90°F)










Recommended Minimum

5.5°C (41.9°F) dew point


Recommended Maximum

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


Allowable range











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.


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.


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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HP Modular Cooling System Environmental considerations, Control system, Before installing and running active components