Greenheck USFD-100 Installation, Operation And Maintenance Manual page 8

CSW Arrangement 1
X/Y Motor Position
Isolation Base
CSW Arrangement 1
No Motor
Without Isolation Base
8 Utility and Centrifugal Fans
Sizes 33 thru 73
CSW Arrangement 1
W or Z Motor Position
Isolation Base
CSW Arrangement 8
Isolation Base
Lift unit from fan lifting points, not from isolation base.
NOTE
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