Introduction - Trane CVHE Installation Manual

Introduction

NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conductors. Failure to do so could
cause damage to the equipment.
NOTICE:
Stand-mounted AFDH supported by equipment room floor!
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. 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.
NOTICE:
Incorrect application! Adapting a floor stand kit to an E-Frame AFDH!
When properly installed, the part number 50689890010 Floor Stand Kit is designed to safely
support the weight of D-Frame model AFDH drives only. The largest model D-Frame drive
weighs 872 pounds. The smallest model E-Frame drive weighs 1193 pounds. Any attempt to
adapt the 50689890010 Floor Stand Kit to an E-Frame model AFDH drive will be considered an
unsupported field modification to the drive unit design. Trane assumes no responsibility for the
equipment damage caused by a stress or fatigue failure of the floor stand kit due to any use
outside of its intended application.
NOTICE:
Excessive cable lengths between AFDH drive and compressor motor!
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 50 feet to protect the motor from
reflected voltage waves that can cause the motor to fail. Cable lengths that exceed 50 feet
between the drive and the motor create the potential for damage to occur to the motor
windings and/or insulation. Trane assumes no responsibility for equipment damage caused by
use of improper cable lengths.
NOTICE:
Route incoming power conduit to the roof of the AFDH cabinet!
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. 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.
Introduction
The step-by-step instructions outlined in this manual describe the procedures required to
successfully install an AFDH Retrofit Air-Cooled Adaptive Frequency™ Drive package in place of an
existing starter on a Trane® CVHE or CVHF model centrifugal chiller. This only applies to chillers
having either a UCP2™ or UCP2 FastPak™ Controller, a Tracer™ CH531 Controller Retrofit, or a
Tracer AdaptiView™ Controller.
4 AFDH-SVN01A-EN