Recommended Periodic Maintenance And Inspection; Inspection Frequency; Visual Inspection-Power Removed; Operational Inspection-Power Applied - Trane CVHE Installation Instructions Manual

Recommended Periodic Maintenance and Inspection

Inspection Frequency

Perform inspections outlined below every 1 to 12 months,
depending on operating environment.
Visual Inspection—Power
Removed
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors 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 a CAT III or IV voltmeter rated per
NFPA 70E that all capacitors have discharged.
For additional information regarding the safe discharge of
capacitors, see PROD-SVB06*-EN.
1. Ensure the door interlocks are present and working.
2. Verify the safety ground connections to the door
panels are securely connected.
3. Inspect power wire cables and devices to assure no
abrasion is occurring from vibrations against chassis
of cabinets, or other edges.
4. Ensure the drive interior and exterior is clear of any
dust or debris. Fans, circuit boards, vents etc. must be
clean. Only use a vacuum for cleaning. DO NOT use
compressed air. Review actual operation environment
against specs if any concern.
5. Inspect the interior of the drive for any signs of
moisture entry or leakage.
6. Visually inspect all drive components and wiring. Look
for signs of heat or failure (look for swelled or leaking
capacitors, discolored reactors or inductors, broken
pre-charge resistors, smoke or arc trails on MOVs and
capacitors, etc.)
7. Closely inspect the motor terminal board for any signs
of leakage, arcing, etc.
8. Check ALL cable/lug/terminal connections inside the
drive enclosure. Ensure all are clean and tight, and not
rubbing against each other anywhere.
AFDH-SVN004C-EN
Operational Inspection—Power
Applied
WARNING
Live Electrical Components!
Failure to follow all electrical safety precautions when
exposed to live electrical components could result in
death or serious injury. When necessary to work with
live electrical components, have a qualified licensed
electrician or other individual who has been properly
trained in handling live electrical components perform
these tasks.
1. Verify the drive cabinet cooling fans are operating.
This should be done from outside the enclosure, by
looking into the cabinet at door and cabinet vents, to
avoid electrical hazards.
Note: The power module fan comes on with power.
Other fans cycle with drive operation.
2. Check historic fault codes using Local Control Panel
(LCP) connected to the AFD.
3. Check configuration settings and confirm all proper
settings are still present in the controls.
4. Review the diagnostic history.
5. Make Chiller Service report to document all setpoints.
6. Check the UC800 alarm histories for any indications of
operational problems.
To properly diagnose service issues for Adaptive
Frequency drives for centrifugal chillers equipped with
AFDH starters. All UC800 chillers will be equipped with the
LCP as standard on the drive power module. This is for
service only and NEVER for machine operation.

Air Filter

Clean or replace filter every 1 to 12 months, depending on
operating environment.
Filter Description
Direct Mount Drive Air Filter
Transition Mount Drive Air Filter
LiquiFlo 1.0/1.5 Drive Air Filter
Part Number
FLR08814
FLR08814
FLR08814
55