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Should drives be specified in division 15 or 16? VFDs require a new discussion.(variable frequency drives)

Energy User News

| October 01, 2002 | Olson, Michael R. | COPYRIGHT 2002 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

Recently, variable frequency drive (VFD) manufacturers have participated in a discussion about moving the VFD specifications from the mechanical portion of the Construction Specification Institute (CSI) Master Spec (Division 15) to the electrical portion (Division 16). Some support for this change may stem from concerns about harmonics, but some VFD manufacturers may have a vested interest in having the drives specified in Division 16.

Mechanical department personnel at consulting firms often are not comfortable with harmonics issues; however, specifying VFDs in Division 16 can also raise concerns about sole-source responsibility and coordination.

In ...

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