68
CTV-PRB004-EN
Starter Options
The customer is still responsible for providing primary potential transformers for medium voltage.
Criteria for the Enhanced Electrical Protection Package.
The Enhanced Electrical Protection
Package may be selected for CenTraVac chillers that meet the following criteria:
•
Single compressor (no Duplex™)
•
60 Hz only
•
080, 142, 210, and 250 shells in all short, long, and extended combinations
•
Motor frame sizes 440E, 5000, 5800, and 5800L, which correspond to approximate chiller
capacities from 450 to 2,000 tons
•
NEMA 1 unit-mounted starters can be accommodated. Contact CenTraVac Field Sales Support
for details.
Refer to CTV-PRC007-EN (
Product Catalog: EarthWise™ CenTraVac™Water-Cooled Liquid Chillers
)
for information on possible special configurations.
Note:
Placing a unit-mounted starter on an chiller equipped with the Enhanced Electrical
Protection Package negates the chiller’s NEMA 4 rating and changes it back to a standard
NEMA 1 rating.
Industrial paint.
Trane offers a two component, catalyzed, executive beige high-solids epoxy
coating paint system to meet or exceed the performance of the US Department of Defense
(USDOD) military specification MIL-PRF-22750F.This paint has a volatile organic compound (VOC)
content less than 2.8 lb/gal (335.6 g/L). It offers protection and resistance to fluids, adhesives,
solvents, heat, and weather. We recommend that it be used with the
“Enhanced Electrical
Protection Package,” p. 64
; it is priced separately.
Starters by Other Manufacturers (SBO)
Occasionally a customer chooses to reuse an existing starter or purchase a starter directly from a
starter manufacturer. While this can be accommodated, it requires careful coordination between
theTrane sales representative and the owner, engineer, and starter manufacturer because generic
or existing starters are not compatible with the Trane
®
chiller control panel.
Non-Trane starters must be modified with the proper components and control wiring before they
are connected to a Trane
®
chiller. Existing starters should be modified by the owner’s
representative; new starters should modified by the starter manufacturer. Trane assumes no
responsibility for the design, construction, compatibility, installation, startup, long-term support,
and will not maintain records or drawings for the resulting starter.
Trane provides a Starter by Others specification, which provides the information required for
others to build a starter that is compatible withTrane
®
centrifugal compressor motors and controls.
When a non-Trane-provided starter is used, it must be modified to conform to the appropriateTrane
Starter by Others specification. SBO specifications are revised on a regular basis, so it is important
to obtain the correct version before building or modifying a starter by others.
It is also important to include the cost of conversion when determining the total cost of a non-Trane
starter; therefore, the owner should be provided with the appropriate SBO specification before the
decision is made to reuse or purchase a non-Trane starter. Components required for conversion
include but are not limited to:
•
4 kVA control-power transformer (1)
•
Primary current transformers (3)
•
Secondary current transformers (3)
•
Primary potential transformer (1) for medium-voltage starters
•
Secondary potential transformers (3) for medium-voltage starters
•
Other optional starter equipment, e.g. power factor correction capacitors, as required by the
specification
TheTrane
®
chiller control panel integrates the chiller, motor, and starter into a single control and
protection system. Therefore, non-Trane starters do not require an additional motor-starter
protection package. If a non-Trane starter includes a protection package, the protection package
CTV-PRB004.book Page 68 Sunday, December 18, 2011 6:39 PM
