Routine Inspection And Maintenance; Line Filter Capacitors - Phase Technology PERFECT PT007 Operation & Installation Manual

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 18 – Table 22.
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

This section does not apply to PTS products. 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. See Figure 25 - Figure 27 to identify the line filter
capacitors.
Figure 25 – PT Small Frame Line Filter Figure 26 – PT Medium Frame Line Filter
Capacitors Capacitors
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