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As a result, the HP POD 40c and 20c can have a PUE ratio as low as 1.25 depending on the
configuration of the IT equipment and the water-cooling facility to which they connect.
We can ship the HP POD 40c or 20c in as little as 6 weeks. For more information, visit
http://h18000.www1.hp.com/products/servers/solutions/datacentersolutions/pod/index.html.
HP POD 240a
The HP POD 240a (nicknamed EcoPOD) is engineered for the ultra-high efficiency that is possible
only with free-air cooling. The EcoPOD contains 2200U of rack space, suitable for 44 50U 19-inch
racks. This IT capacity is equivalent to a 10,000 ft
2
(3,048 m
2
) traditional data center, but at one-
tenth the space. The EcoPOD consists of two 40-ft IT modules with a common 8-ft wide (2,438 mm)
hot aisle (Figure 13) that allows you to easily remove and service IT equipment up to a rack at a time.
Above the IT modules, you can use up to 24 direct-expansion (DX) air conditioning units when outside
air is too hot, or otherwise not suitable.
Figure 13: HP Performance Optimized Datacenter 240a
Power capacity
The EcoPOD uses an industrial-quality programmable logic controller (PLC) to gather IT power
consumption data from up to two HP Monitored PDUs per rack. The HP Monitored PDU accepts 3-
phase 415 V power and outputs 240 V to the rack. It has an input current monitor that measures the
aggregate current draw on each power circuit. Administrators can view IT load data locally or
remotely with an optional management module.
Policy-based Adaptive Cooling
The PLC checks environmental conditions inside and outside the EcoPOD. The PLC monitors
temperature sensors in the hot and cold-aisles and humidity sensors included with the optional
humidifier. Users can define policy set points for Adaptive Cooling mode based on industry
parameters–ASHRAE recommended, ASHRAE allowable, or HP allowable temperatures.
Based on the IT load, environmental conditions, and user-defined policies, the EcoPOD uses an
algorithm to adjust the control surfaces, fan speeds, and the following Adaptive Cooling modes to use
the least amount of energy:
Free air mode. Ambient air within a specified temperature/humidity range provides cooling.
DX (recirculation) mode. The DX units provide all of the cooling.