Confirm Chiller Controller System Compatibility With Afdh Drive; Equipment Room Ambient Temperature And Environmental Considerations; Chiller Upgrades - Trane CVHE Installation Instructions Manual

Pre-Installation
Confirm Chiller Controller System
Compatibility with AFDH Drive
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.
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 upgrade.
The controller systems that can accept an AFDH upgrade
is Tracer® AdaptiView™.
Note: UC800 controller must be equipped with a
Tracer® AdaptiView™ software version
released in January 2019 or newer. Upload the
correct Tracer® AdaptiView™ software version
as required.
Equipment Room Ambient
Temperature and Environmental
Considerations
An air-conditioned equipment room is not a prerequisite
for the installation and operation of NEMA 1 AFDH
upgrade drive package.
However, be advised that all models of the AFDH air-
cooled drives are not suitable for installation into
equipment rooms where the ambient temperature
conditions are expected to exceed either 104°F for a
continuous 24-hour period, or where the potential
maximum ambient temperatures can exceed 113°F.
If the ambient temperatures exceed either of these
conditions, the potential exists to trigger a drive shut down
from an over temperature fault—effectively disabling the
chiller until the drive temperature drops to the factory set,
non-adjustable, safe temperature level that will allow the
drive to be restarted.
If the ambient temperature routinely exceeds either of
these conditions, the overall service life of the drive may
be compromised. Verify the drive location will meet the
environmental conditions specified in the table below.
12
Table 1. Environmental conditions
Condition
Operating Temperature (inside
NEMA 1 enclosure)
Ambient Temperature (outside
NEMA 1 enclosure)
Storage Temperature (Ambient)
Humidity

Chiller Upgrades

The chiller condenser loop setpoint should be reset to fully
exploit the energy savings possible with a upgrade AFDH
drive. It is recommended to use Trane Option Analyzer or
a similar software to determine the optimum setpoint.
Important: Under low condenser water conditions, use
of an oil recovery system is recommended.
These systems are found on all Trane
chillers built since 1985.
Specification
32°F to 131°F (0°C to 55°C)
32°F to 104°F (0°C to 40°C)
-40°F to 149°F (-40°C to 65°C)
5% to 95% (non-condensing)
®
AFDH-SVN004C-EN