Temporarily install the top duct section as
shown above. Use the top duct cover piece to
mark the enclosure top for the opening.
Alternatively, the mounting template (sup-
plied drawing) can be used to make the en-
closure cutout.
3.40: Rittal enclosure top with cut-out
The standard Rittal enclosure top is cut. The gas-
ket is not used on the cut-out. The gasket is part
of the duct work.
3.41: The gasket folds over the edge to form a
seal between the duct and the top vented cover.
3.42: Top duct installed
3.43: The gasket applied to both sides of the ad-
justable frequency drive bracket and duct vented-
top cover.
3.44: Top duct ready to be installed on the ad-
justable frequency drive
VLT
®
HVAC DRIVE High Power
Instruction Manual
3. How to Install
MG.11.F1.22 - VLT
®
is a registered Danfoss trademark.
41
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