HP Performance Optimized Data Center (POD) 240a User Manual
AHU system 65
The HP POD 240e NA is equipped with 10 exhaust fans that remove heated air from the hot aisle. The
exhaust fans feature an integrated monitoring function to protect the motor and electronics against damage
from jamming, phase loss, or overheating.
If any of the following failure conditions occur, the motor automatically stops and an alarm is signaled:
from jamming, phase loss, or overheating.
If any of the following failure conditions occur, the motor automatically stops and an alarm is signaled:
•
Locked rotor
•
Low main supply voltage
•
Loss of a phase
•
Over-heating of the exhaust fan electronics
•
Over-heating of the exhaust fan motor
For more information about the exhaust fan, see the HP Performance Optimized Datacenter 240e NA
Maintenance and Service Guide.
Side view shown
Side view shown
Static pressure control
The control of static pressure is used to be sure that the airflow from the cold aisle of the IT sections across the
rack and into the hot aisle of the HP POD 240e NA remains constant. The pressure in the hot aisle is
controlled to external ambient pressure, and the IT sections are slightly higher than the external ambient
controlled to external ambient pressure, and the IT sections are slightly higher than the external ambient
pressure.
The static pressure is controlled to a default parameter of 0.1 in H
The static pressure is controlled to a default parameter of 0.1 in H
2
O above external ambient pressure in the
cold aisle, which cannot be adjusted by a customer.