Appendix C - Maintenance Summary And Log Sheets - Carrier AquaEdge 19MV Start-Up, Operation And Maintenance Instructions Manual

19MV Maintenance Interval Requirements
COMPRESSOR None.
EVAPORATOR None.
CONDENSER None.
COMPRESSOR None.
COMPRESSOR Replace motor coolant line filter drier.
COMPRESSOR Change motor cooling line filter drier. Leak test. Replace
desiccant packet inside MBC cavity.
Inspect and clean evaporator tubes. Confirm there is no
foreign debris in the tubes or waterboxes from the water
system. Inspect all pressure relief devices. Leak test. Verify
EVAPORATOR
water pressure differential. Inspect water pumps. Send
refrigerant sample out for analysis. Replace liquid strainer
in inhibitor reclaim line (closest to evaporator inlet).
Inspect and clean condenser tubes. Leak test. Verify
CONDENSER water pressure differential. Inspect water pumps and
cooling tower.
COMPRESSOR None.
EVAPORATOR Perform eddy current test.
Inspect EXVs and clean or replace strainers. Perform
CONDENSER
eddy current test.
COMPRESSOR None.
Isolate and drain waterbox. Remove waterbox cover
EVAPORATOR
from one end. Use compressed air to clear tubes.
Isolate and drain waterbox. Remove waterbox cover
CONDENSER
from one end. Use compressed air to clear tubes.
NOTE: Equipment failures caused by lack of adherence to the Mainte-
nance Interval Requirements are not covered under warranty.
APPENDIX C — MAINTENANCE SUMMARY
AND LOG SHEETS
WEEKLY
MONTHLY
FIRST YEAR
ANNUALLY
EVERY 3 TO 5 YEARS
SEASONAL SHUTDOWN
58
CONTROLS Review PIC6 Alarm/Alert History.
VFD None.
PIC6 automatically performs UPS Discharge Level test of
the battery. Alert 117 will be active should the test fail.
Should Alert 117 become active the battery will need to be
replaced within 2 weeks. Upon replacement, the new bat-
UPS
tery must be acknowledged in the UPS Config menu (Bat-
tery Replacement Done = Yes). If no action is taken UPS
Battery Replacement Alarm 481 will be active, resulting in
chiller shutdown.
CONTROLS None.
EXVS Clean EXV strainers.
Perform general cleaning. Tighten connections. Check
pressure transducers. Confirm accuracy of thermistors.
CONTROLS
Complete a MBC clearance check. Record MBC drop
counts against the limit.
Perform general cleaning. Tighten connections. Perform
visual inspection of the capacitors located on the DC bus
VFD
and inductors. Check cooling fan operation. Replace or
clean air filter.
Perform general cleaning of air filter located in the door of
the high voltage section. Filter mesh is made of washable
POWER aluminum. Verify that fan is operating. Fan exit is located on
PANEL the back of the high voltage section. Fan will operate when
enclosure temperature exceeds 70°F (21°C). Replace the
motor coolant line filter drier.
CONTROLS Replace UPS battery.
VFD None.
CONTROLS None.
VFD None.