Installation Considerations For Remote Floor-Mounted Afdh - Trane CVHE Installation Instructions Manual

NOTICE
Route Incoming Power Conduit to the
Roof of 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.
Important:
• Other factors that affect the space required to
successfully install a stand-mounted AFDH drive
include the clearance distances specified by the local
electrical codes. Typical code regulations require an
average of 36-inches clearance from the panel to
nonconducting surfaces and 47-inches to a conducting
surface. Check and confirm that when installed, the
drive clearances will conform to all local codes. Do not
forget to account for cabinet door swing clearances.
• The design intention of a stand-mounted AFDH drive,
is for the drive to be installed in front of the chiller with
the motor terminal access cover of the drive cabinet
lined up with the compressor motor terminal box. The
cable connections between the drive and the motor
terminals will be shrouded by an extended sheet-metal
transition cover. Refer to
Note: Refer to the manual section
Specifications," p. 16
weights of all models of AFDH drives"
AFDH-SVN02D-EN
Figure 4.
"AFDH Drive Package
for the dimensions and
Figure 4. Example of a stand-mounted version of an
AFD drive
1. Example of a stand-mount AFD drive.
2. Motor terminal access cover of drive lined up with compressor
motor terminal box. Cable connections between drive and the
motor terminals shrouded by an extended sheet-metal transition
cover.
Installation Considerations for Remote
Floor-Mounted AFDH
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.
Pre-Installation
11