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Cyclone HUSH Enclosures
Cyclone HUSH enclosures must be provided with an exhaust duct for exhaust air, from the top of
the enclosure to a location where the noise of the Cyclone fans will not be heard. This is usually
an insulated ceiling void, drop ceiling, an adjoining room, or an outside wall.
The exhaust duct is normally installed by an air conditioning installer, and rated for airflow as
follows:
Cyclone 8000, 8100 HUSH
500cfm
0.25m3/s
Cyclone 8200 and up
1,000cfm
0.50m3/s
The Cyclone HUSH enclosure is supplied with a fan plate to be mounted at the far end of the duct.
Installer must provide a 3-conductor flexible cable rated at 250VAC, 10 Amps, conforming to local
electrical standards, to connect the fan plate to the Cyclone DEC controller, and pulled either
through the duct or in a separate electrical conduit.
Power and Signal
Conduit Entries
Cyclone Enclosure User Manual
page 13