Introduction
4 AFDH-SVN03H-EN
Copyright
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in
part without written permission. Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
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All trademarks referenced in this document are the
trademarks of their respective owners.
Revision History
• Corrections to Table 18, p. 44
NOTICE
Stand-Mounted AFDH Supported by
Equipment Room Floor!
Trane assumes no responsibility for equipment damage
caused by the installation of an AFDH drive version that
is specified as being incorrect for the application. A
stand-mounted version of an AFDH drive is designed to
be rigidly supported by the equipment room floor.
Therefore, a stand-mounted AFDH drive is not
recommended for use with a chiller that is equipped
with spring-type vibration or seismic isolators. Trane
recommends using a remote floor-mounted AFDH drive
in this application.
NOTICE
Excessive Cable Lengths Between AFDH
Drive and Compressor Motor!
Trane assumes no responsibility for equipment damage
caused by use of improper cable lengths. The variable
frequency drive industry recommends that the length
of the electrical cables connecting a drive unit to a
motor should be kept to less than 250 feet to protect
the motor from reflected voltage waves that can cause
the motor to fail. Cable lengths that exceed 250 feet
between the drive and the motor create the potential
for damage to occur to the motor windings and/or
insulation.
NOTICE
Route Incoming Power Conduit to the
Roof of the AFDH Cabinet!
Routing the incoming power conduit into the AFDH
cabinet anywhere other than through the specified
location on the cabinet roof, will be considered an
unsupported field modification to the cabinet design.
The air-cooled AFDH drive is designed to have the
incoming power conduit routed vertically into the unit
through the removable conduit connection cover
located on the left-hand rear corner of the cabinet roof.
If the starter that is being replaced by the AFDH drive
has the incoming power conduit routed horizontally
across the top of the starter, or connected to the side or
to the bottom of the starter cabinet, an electrician will
be required to reconfigure the conduit and wiring.
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