Installation Considerations For Remote Floor-Mounted Afdh; Confirm Chiller Controller System Compatibility With Afdh Drive; Ucp2 Compatibility With Afdh Drives - Trane CVHE Installation Instructions Manual

Pre-Installation
clearance distances specified by the local electrical
codes. Typical code regulations require an average of
36 inches of 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.
Note: Refer to manual section
Specifications," p. 16
weights of all models of AFDH drives.
Installation Considerations for Remote
Floor-Mounted AFDH
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 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. Trane assumes no responsibility for
equipment damage caused by use of improper cable
lengths.
Important:
• Other factors that affect the space required to
successfully install a remote floor-mounted AFDH
drive include the clearance distances specified by the
local electrical codes. Typical code regulations require
an average of 36 inches of 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.
• Plan the installation location of a remote floor-
mounted AFDH drive to position it in relation to the
chiller compressor motor such that the maximum
length of the cables connecting the drive to the motor
will not exceed 250 feet.
Notes:
• Conduit connections to the AFDH for the power output
wiring can be made either at the back of the cabinet or
on the top of the cabinet. Which of these options is
chosen shall be at the discretion of the installing
electrician.
• Refer to "AFDH Drive Package Specifications," p. 16
the dimensions and weights of all models of AFDH
drives.
10
"AFDH Drive Package
for the dimensions and
Confirm Chiller Controller System
Compatibility with AFDH Drive
Before starting the process of installing the AFDH, first
confirm that the existing chiller controller system has the
hardware and/or software components required to make it
compatible with an AFDH retrofit.
The controller systems that can accept an AFDH retrofit
are:
• UCP2™ and UCP2 FastPak™ Not Applicable controller
systems shipped after July 1994 (refer to UCP2™ Not
Applicable sub-chapter that follows this bulleted list
for more details).
Note: If a UCP2 FastPak™ control is equipped with a
pulse type actuator, it must first be upgraded to
the current UCP2™ style stepper actuator
before installing the AFDH retrofit.
• Tracer® CH531 retrofit control upgrade packages (all
models).
Note: The factory installed Tracer® CH530 chiller
controller system will not support an AFDH Air-
Cooled Adaptive Frequency™ Drive. The
controller system must first be upgraded to
Tracer® AdaptiView™ before an AFDH retrofit
package can be installed.
• Tracer® AdaptiView™
Note: UC800 controller must be equipped with a
Tracer® AdaptiViewÿ software version
released in February 2009 or newer. Upload the
correct Tracer® AdaptiView™ software version
as required.

UCP2 Compatibility with AFDH Drives

UCP2 chiller controller system history
• Prior to July 1994, UCP2™ and UCP2 FastPak™
controls did not have Adaptive Frequency™ drive
(AFD) compatible software in their Chiller Modules or
in their Clear Language Display Modules.
• Between July 1994 to June 1998 the first release of AFD
compatible UCP2™ hardware/software allowed a
speed reduction down to as low as 42 Hz.
• In June 1998, the second version UCP2™ software
release allowed speed reduction down to 38 Hz, which
resulted in slightly improved energy savings.
AFDH compatible UCP2 hardware and
software
for
To determine if a UCP2™ or UCP2 FastPak™ is equipped
with hardware and software that will accept an AFDH
retrofit, refer to Table 1, p. 11
1. Open the UCP2™ door and record the X-code style part
number printed on both the Chiller Module and the
Clear Language Display Module.
and the instructions below:
AFDH-SVN03H-EN