Environmental Requirements; Temperature And Humidity Specifications; Table 1-7. Computer Environment - HP rp8400 Series Manual

Environmental Requirements

This section provides the environmental, power dissipation, noise emission, and air flow specifications for the
rp8400 server.

Temperature and Humidity Specifications

Ambient intake air temperature is often different from ambient room temperature; you should measure the
operating temperature and humidity directly in front of the cabinet cooling air intakes rather than check only
ambient room conditions. Table 1-7 lists the computer room temperature and humidity specifications for
rp8400 servers.
Table 1-7 Computer Environment
Parameter Operating Range
5 C to 35 C (up to
ab
Temperature
5000 feet)
Relative 15% to 80% at 35 C
Humidity noncondensing
a. Derate 1 C/1000 feet above 5000 feet and up to 10,000 feet.
b. System also requires 960 CFM airflow.
Operating ranges refer to the ambient air temperature and humidity measured at the cabinet
NOTE
cooling air intake vents.
Power Dissipation
This section describes the power dissipated by each component of the rp8400 server.
Cabinet Power Dissipation Table 1-8 lists the theoretical maximum power dissipations of the rp8400
server system. Table 1-9 lists typical power dissipation. To determine the power dissipations of your specific
system, refer to Table A-1 on page 46 and Table A-2 on page 46.
The entry for each component lists the individual power dissipation for the components that can be installed
in that cabinet.
The air conditioning data is derived from the following equations.
• Watts x (0.860) = kcal/hour
• Watts x (3.414) = Btu/hour
• Btu/hour divided by 12,000 = tons of refrigeration required
Chapter 1
Recommended
Operating Range
20 C to 25 C (up to
5000 feet)
40% to 60% at 35 C
noncondensing
Environmental Requirements
Maximum Rate of
Change
10 C/hr with tape
20 C/hr without tape
30% per hour
noncondensing
System Specifications
Non-Operating
Range
-40 C to +70 C
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