Trane Technologies CenTraVac CVHE, Installation, Operation And Maintenance Manual

Page: 90 / 108

90 CVHE-SVX005B-EN
Table 21. 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. Ask your Sales account
manager for a copy of engineering bulletin (CTV-PRB024*-EN) for clarification of the role of eddy current testing in chiller maintenance by providing
information about eddy current technology and heat exchanger tubing.
(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 22. 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. 94
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. 94 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 Installation, Operation, and Maintenance manual
applies to CenTraVac ™ chillers with two different
refrigerant and compressor oil systems:
• R-123 refrigerant and OIL00022 compressor oil.
• R-514A refrigerant and Trane OIL00379/OIL00380
compressor oil.
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For post-service compressor air-run procedures on
CenTraVac™ chillers that use R-514A refrigerant and
POE oil:
1. Use Trane OIL00381/OIL00382 compressor oil for
the air-run procedure.
2. Upon completion of the air-run procedure, drain the
OIL00381/OIL00382 from the sump.
3. After unit final assembly and evacuation, refill the
sump with Trane OIL00379/OIL00380.
IIm mp po orrtta an ntt:: Verify proper refrigerant and compressor
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.
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