Npaq® Hardware Manual
Options
3.1. External / Fan Tray Cooling Options
The External Cooling option requires the user to provide forced air-cooling to the Npaq drive chassis. If this
option is requested the top and bottom covers for the amplifier compartment will be changed from solid
covers to perforated covers and the fan located on the left side of the chassis will not be installed. The user
will need to provide cooling to the Npaq amplifier compartment by directing airflow towards the perforated
covers. Air is directed from the bottom of the Npaq chassis and will flow out of the top of the chassis.
External Cooling requires that the top and bottom of the Npaq chassis be open so that airflow is not
obstructed.
The Npaq can be ordered with an upper or a lower Fan Tray option. With either of these options, a fan tray is
attached to the Npaq chassis. This tray contains several fans that draw air from below the chassis and direct
the air upward and out of the top of the Npaq drive chassis. The Fan Tray option adds an additional 1U (1.75”)
height to the chassis. The Fan Tray options also require additional unobstructed space both below and above
the Npaq chassis to allow for sufficient airflow.
The dimensions of the Npaq with the optional fan trays are shown in
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Chapter 3
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