APC NetworkAIR Rack Air Removal Unit ACF102BLK Installation Manual download pdf (Page 18)

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

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.

OFF

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APC NetworkAIR Rack Air Removal Unit ACF102BLK Installation Manual Page 18