Parker AC890 Product Manual page 29

890SD Standalone Drive
Air Flow
The drives use very large airflows and have been
designed with specific airflow patterns within a
cabinet. It is generally intended that the bulk of the
air comes into the cabinet at the top, flows down
(some going through the drive to maintain internal
temperatures), into the main cooling fan, through
the drive, the brake/exhaust duct (supplied), and
finally out the top of the cabinet through vent
assembly (supplied).
This flow pattern insures that the top of the cabinet
is effectively evacuated and the inside of the drive
is cooled by fresh air.
The brake/exhaust duct allows for field installation
of a braking module and it gives clearance for inlet air to come from the front of the cabinet into the top of
the drive and down; we strongly recommend that this is fitted with the drive whether a brake is fitted or not.
It is also important that the top vent is properly fitted to assure that the exhaust air is not recirculated. Refer
to fold-out drawings HG465731U001, 2 and 3 at the end of this chapter for typical cubicle layout
information.
We recommend that these drives are separated from other equipment in a large multifunction cabinet so that
the airflow is better controlled. i.e. air heated by other items should not affect the inlet temperature to the
drive's main fan.
4-10
Page
Required
Air Inlet
Location
Additional air
inlet location
if required
890SD (Standalone) Drive: Frame G, H & J