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Recommended Periodic Maintenance and Inspection
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 an appropriate voltmeter that all
capacitors have discharged.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06*-EN.
Note: Graphic labels (shown above) are used for CE
application only.
Important:
•
Before servicing, disconnect all power sources and
allow at least 10 minutes for capacitors to discharge.
•
All electrical enclosures-unit or remote-are IP2X.
1. Check the refrigerant coolant lines and 2-bolt flange
drive connections to ensure they are tight and do not
leak.
2. Ensure the door interlocks are present and working.
3. Verify the safety ground connections to the door
panels are securely connected.
4. Inspect power wire cables and devices to assure no
abrasion is occurring from vibrations against chassis
of cabinets, or other edges.
52
5. 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. If aftermarket intake filter kits
(KIT19035=frame 3, KIT19036=frame 4) have been
installed, remove the washable filter media, clean and
dry the filter media and re-install.
6. Inspect the interior of the drive for any signs of
moisture entry or leakage.
7. 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.).
8. Closely inspect the motor terminal board for any signs
of leakage, arcing, etc.
9. Check ALL cable/lug/terminal connections inside the
drive enclosure. Ensure all are clean and tight, and not
rubbing against each other anywhere.
10. Check any bypass or pre-charge contactors. Confirm
the contacts are in serviceable condition and that the
contactor operates smoothly.
11. Re-seat all ribbon cable or control wire plugs to ensure
all are snug and tight.
12. Verify 2A6 filter cap assembly fuses 2F6, 2F5, and 2F4
are OK.
13. Check the precharge resistors.
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
X39003893001A
live electrical components, have a qualified licensed
electrician or other individual who has been properly
trained in handling live electrical components perform
these tasks.
WARNING
AFDE-SVU02F-EN
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