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Operation
14 NetworkAIR Rack Air Removal Unit Installation
How to set the fans based on temperature
A temperature probe is located in the intake vents of the Rack Air Removal Unit that measures the
equipment exhaust air temperature. The unit will increase or decrease the speed of the fans to keep
the equipment exhaust at the desired temperature.
The appropriate fan speed is based on the equipment’s inlet air temperature and its temperature
differential. The temperature differential is the rise in temperature between the inlet air and the
exhaust air after it passes through the equipment. Refer to your equipment manual to determine the
temperature differential.
.
Warn
i
ng
When using a UPS that is 3000VA or lower, do not set the fan speed based on
exhaust temperature. If the fan speed is set based on the exhaust temperature, the
power draw may exceed the limitations of the UPS.
C
35
5
3
2
6
OFF
32
29.5
kW
38