Trane CVHG User Manual

CVHE-SVX02M-EN
85
Table 22. Recommended maintenance (continued)
Daily Every 3 months Every 6 months Annually
(a)
,
(b)
Submit a sample of the compressor oil to a Trane-
qualified laboratory for comprehensive analysis.
Measure the compressor motor winding
resistance to ground; a qualified service
technician should conduct this check to ensure
that the findings are properly interpreted. Contact
a qualified service organization to leak-test the
chiller; this procedure is especially important if
the system requires frequent purging.
(a)
Every three years, use a non-destructive tube test to inspect the condenser and evaporator tubes. It may be desirable to perform tube tests on these
components at more frequent intervals depending upon chiller application. This is especially true of critical process equipment.
(b)
Contact a qualified service organization to determine when to conduct a complete examination of the unit to discern the condition of the compressor and
internal components. Check the following: chronic air leaks (which can cause acidic conditions in the compressor oil and result in premature bearing wear)
and evaporator or condenser water tube leaks (water mixed with the compressor oil can result in bearing pitting, corrosion, or excessive wear).
Table 23. Recommended maintenance of optional features
Feature
Every 3 months Every 6 months Annually
Waterbox Coatings
Inspect waterbox coatings within the
first 1–3 months to determine a
required maintenance schedule for your
job site. Refer to “Waterbox and
Tubesheet Protective Coatings,” p. 88
for more information.
Waterbox Anodes
Inspect waterbox anodes within the first
1–3 months to determine a required
maintenance schedule for your job site.
Refer to “Sacrificial Anodes,” p. 88 for
more information.
Gantries
Lubricate the gantries annually. Use ConocoPhillips
MegaPlex® XD3 (gray in color), LPS® MultiPlex Multi-
Purpose (blue in color), or equivalent.
Hinges
Lubricate the hinges annually. Use ConocoPhillips
MegaPlex® XD3 (gray in color), LPS® MultiPlex Multi-
Purpose (blue in color), or equivalent.
Recommended Compressor Oil
Change
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This manual applies to CenTraVac™ chillers with two
different refrigerant and oil systems:
• R-123 and OIL00022
• R-514A and OIL00334/OIL00335
IImmppoorrttaanntt:: Verify proper refrigerant and oil for your
chiller before proceeding!
After the first six months of accumulated operation or
after 1000 hours operation—whichever comes first—it
is recommended to change the oil and filter. After this
oil change, it is recommended to subscribe to the Trane
annual oil analysis program rather than automatically
change the oil as part of scheduled maintenance.
Change the oil only if indicated by the oil analysis.
Using an oil analysis program will reduce the chiller’s
overall lifetime waste oil generation and minimize
refrigerant emissions. The analysis determines system
moisture content, acid level, and wear metal content of
the oil, and can be used as a diagnostic tool. The oil
analysis should be performed by a qualified laboratory
that is experienced in refrigerant and oil chemistry and
in the servicing of Trane® centrifugal chillers.
In conjunction with other diagnostics performed by a
qualified service technician, oil analyses can provide
valuable information on the performance of the chiller
to help minimize operating and maintenance costs and
maximize its operating life. A valve is installed next to
the oil filter for the purpose of obtaining oil samples.
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Trane CVHG Specifications

General

Brand	Trane
Model	CVHG
Category	Chiller
Language	English