CVHE-SVX02M-EN
D–1
Appendix D. CVHE, CVHF, and CVHG CenTraVac™™
Chiller Annual Inspection List
Follow the annual maintenance instructions provided
in the text of this manual, including but not limited to:
1. CCoommpprreessssoorr//MMoottoorr
Motor continuity.
Motor meg test.
Check motor terminals.
Inspect motor terminal board.
Check inlet guide vanes (IGV) for abnormalities.
2. SSttaarrtteerr oorr AAddaappttiivvee FFrreeqquueennccyy™™ DDrriivvee
Inspect starter contacts.
Check all connections per manufacturer
specifications.
Follow all manufacturer recommendations for
starter or Adaptive Frequency™ Drive (AFD)
maintenance.
Inspect/clean/service the AFD cooling system
(water- or air-cooled AFD).
Record all applicable starter or starter
component settings.
3. OOiill SSyysstteemm
Annual oil analysis (follow recommendations).
Clean and lubricate oil system as required.
Electrical inspection.
Pump motor continuity check.
Run oil pump and check differential oil pressure.
4. CCoonnddeennsseerr
Inspect for fouling and scaling in tubes.
Check operation of condenser water flow
sensing device.
Factory recommendation to eddy current test
tubes every three years.
5. EEvvaappoorraattoorr
Inspect for fouling and scaling in tubes.
Check operation of evaporator water flow
sensing device.
Factory recommendation to eddy current test
tubes every three years.
6. CCoonnttrrooll CCiirrccuuiittss
Verify control parameters.
Test appropriate sensors for accuracy.
Ensure sensors are properly seated in wells with
thermopaste installed.
Check evaporator leaving water temperature
low temperature cutout setpoint.
Condenser high pressure switch check-out.
Check adjustment and operation of the inlet
guide vane actuator.
7. LLeeaakk TTeesstt CChhiilllleerr
Check purge times and unit performance logs. If
warranted, pressure leak test.
Review oil analysis. If required, submit
refrigerant sample for analysis.
Inspect unit for any signs of refrigerant or oil
leakage.
Check unit for any loose bolts on flange,
volutes, or casing.
8. PPuurrggee UUnniitt
Review the purge Installation, Operation, and
Maintenance manual and follow maintenance
and/or inspection items identified.
Review purge pump-out data.
Review overall operation of purge and service
as necessary.
9. EExxtteerriioorr
Inlet guide vane linkage.
Clean and touch-up painted surfaces as needed.
Repair deteriorated, torn, or missing insulation.
10. OOppttiioonnaall AAcccceessssoorriieess
If applicable, lubricate factory-installed gantries.
After the first month of operation, inspect
Heresite® or Belzona® coated waterboxes;
thereafter, inspect as needed.
Inspect anodes.
Inspect and lubricate hinged waterboxes.
With water flow sensing option, bleed tubing
from waterboxes to transformers.
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