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CVHE-SVU01E-EN
Maintenance
ƽƽ
ƽƽ
ƽ WARNING
Hazardous Voltage w/
Capacitors!
Disconnect all electric power,
including remote disconnects before
servicing. Follow proper lockout/
tagout procedures to ensure the
power cannot be inadvertently
energized. For variable frequency
drives or other energy storing
components provided by Trane or
others, refer to the appropriate
manufacturer’s literature for
allowable waiting periods for
discharge of capacitors. Verify with
an appropriate voltmeter that all
capacitors have discharged. Failure
to disconnect power and discharge
capacitors before servicing could
result in death or serious injury.
Note: For additional information
regarding the safe discharge of
capacitors, see PROD-SVB06A-EN or
PROD-SVB06A-FR
6. Remove the factory installed
jumper or the field installed wiring
on terminals in the unit control
panel. This will prevent unwanted
chiller operation.
7. Set the purge operating mode to
OFF on UCP chillers.
8. The oil can be left in the unit.
9. The water side should not cause a
problem if shut down and
drained. There may be slight
scaling inside the tubes, but not
enough to cause a problem. The
customer should inspect and
clean tubes before the unit is
returned to service.
IMPORTANT: DO NOT USE
UNTREATED OR IMPROPERLY
TREATED WATER, OR EQUIPMENT
DAMAGE MAY OCCUR.
IMPORTANT: SCALE DEPOSITS ARE
BEST REMOVED BY CHEMICAL
MEANS. BE SURE TO CONSULT
ANY QUALIFIED CHEMICAL HOUSE
IN THE AREA (ONE FAMILIAR WITH
THE LOCAL WATER SUPPLY’S
CHEMICAL MINERAL CONTENT)
FOR A RECOMMENDED CLEANING
SOLUTION SUITABLE FOR THE
JOB.
10. Motor bearings: If the motor sits
for a long time the bearings
could take a set and cause
bearing problems or replacement
later. Once every six months the
chiller oil pump must be started
and the compressor motor bump
started to rotate the shaft. Contact
a qualified service organization to
perform this task. If the
compressor motor cannot be
bump started, then the shaft must
be rotated manually by a qualified
service organization.
11. Obtain an oil analysis initially
after six months of storage, and
once each succeeding year. If no
oil breakdown is evident do not
change the oil. If breakdown is
evident, the oil must be replaced.
12. If the unit is stored for more than
five years, and the storage is
expected to be indefinite, the unit
should be examined for leaks
every five years from the initial
storage date.
13. When the unit is to be returned to
service, the services of a qualified
service organization should be
obtained to conduct all activities
associated with the startup of a
new chiller.