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V2.1
ROUTINE INSPECTION AND MAINTENANCE
HIGH VOLTAGE: This equipment is connected to line voltages that can create a
potentially hazardous situation. Electric shock could result in serious injury or death. This
device should only be installed and serviced by trained and licensed personnel. Follow
instructions carefully and observe all warnings.
WARNING! Under certain operating conditions, the converter will shut down and
automatically restart. Always disconnect input power from the unit and wait 30 minutes for
charge to dissipate before performing service on the converter or connected loads.
Overall: Perform visual inspection, checking for things such as discolored wires or
terminals, evidence of arcing, loose mounting screws, physical damage to the enclosure,
etc. The converter should be inspected and cleaned annually or more frequently if located
in a hot or dirty environment. Special attention should be given to the following:
Power terminals: Periodically, inspect for loose connections and tighten to specifications
in Table 14 – Table 17.
Capacitors: Check for leakage or deformation.
Fans and heatsinks: Excessive dust buildup on heatsink or fan impellers may lead to
overheating. Lightly brush and vacuum. Contact Customer Service for assistance in
replacing cooling fans. Use only fans approved by Phase Technologies. Unapproved fans
may lead to component damage.
Line Filter Capacitors
Line filter capacitors are part of the inductor/capacitor (L/C) filters and should be routinely
monitored and replaced if degraded. Failure of the L/C filter can lead to increased harmonic
levels, which may damage equipment connected to converter. Figure 26 - Figure 28 to
identify the line filter capacitors.
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