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Appendix D: CDHF and CDHG CenTraVac™ Chiller
Annual Inspection List
Follow the annual maintenance instructions provided
in the text of this manual, including but not limited to:
1. C C o o m m p p r r e e s s s s o o r r / / M M o o t t o o r r
☐ Motor continuity.
☐ Motor meg test.
☐ Check motor terminals.
☐ Inspect motor terminal board.
☐ Check inlet guide vanes (IGV) for abnormalities.
2. S S t t a a r r t t e e r r o o r r A A d d a a p p t t i i v v e e F F r r e e q q u u e e n n c c y y ™ ™ D D r r i i v v e e
☐ 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. O O i i l l S S y y s s t t e e m m
☐ 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. C C o o n n d d e e n n s s e e r r
☐ 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. E E v v a a p p o o r r a a t t o o r r
☐ 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. C C o o n n t t r r o o l l C C i i r r c c u u i i t t s s
100
☐ 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. L L e e a a k k T T e e s s t t C C h h i i l l l l e e r r
☐ 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 screws on flange,
volutes, or casing.
8. P P u u r r g g e e U U n n i i t t
☐ 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. E E x x t t e e r r i i o o r r
☐ Inlet guide vane linkage.
☐ Clean and touch-up painted surfaces as needed.
☐ Repair deteriorated, torn, or missing insulation.
10. O O p p t t i i o o n n a a l l A A c c c c e e s s s s o o r r i i e e s s
☐ 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.
CDHF-SVX01N-EN
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