Trane Agility HDWA - Maintenance: Adaptive Frequency Drive Inspections; Visual Inspection-Power Removed; Operational Inspection-Power Applied

HDWA-SVX001D-EN
67
Adaptive Frequency Drive
Periodic Maintenance and
Inspection
Adaptive Frequency™ Drive (AFD) periodic
maintenance and inspections should be performed
every 1–12 months, depending on operating
environment.
Visual Inspection—Power Removed
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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, vents, etc. must be clean.
IImmppoorrttaanntt:: Only use a vacuum for cleaning. Do
NOT use compressed air.
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.
9. Test pH levels annually. Replace fluid as necessary,
or every 5 years.
10. Remove and clean electrical panel air filters.
Operational Inspection—Power Applied
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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.
NNoottee:: The power module fan comes on with power.
Other fans cycle with drive operation.
2. Check historic fault codes using Adaptive
Frequency™ Drive (AFD) control panel (LCP).
NNoottee:: The AFD control panel is used ONLY for
service and should never be used for
machine operation.
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.
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