ST12450W/WD Installation Guide, Rev. B 27
Providing adequate cooling
The enclosure design must ensure ade quate c oo lin g
for the drive. The maximum ambient temper ature is
50oC.
The drive’s product manual ( 83328900) describes how
to eval uate the air -flo w de sign. The e va lua tion consi sts
of ensuring that the case temperatures of certain critical
components remain within acceptable li mits during
drive operation.
We recommend orienting the drive or directing the air
flow in a way that creates the least amount of air-flow
resistance while providing air flow above the circuit
boards and around the head and disc assembly (HDA).
Also, choose the shortest possible path between th e air
inlet and exit. This minimizes the distance traveled by
air that is heated by the drive and by other nearby heat
sources.
Figure 9 shows two design approach es with one or
more fans used to generate air flow. The air-flow pat-
terns can be created by the fans either push ing or
drawing air. The overall flow pattern can be directed
from front to back, back to front, or side to side.