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8.2 Routine Inspection and Maintenance
The unit should be inspected and cleaned at least annually or more frequently if it is located
in an excessively warm or dusty environment.
Overall: Perform a visual inspection checking for things such as discolored wires or
terminals, evidence of arcing, loose mounting screws, physical damage to the enclosure,
etc.
Power terminals: Inspect for loose connections and tighten to specifications in Table 4,
Field Wiring Power Terminal Specifications.
Capacitors: Check for leakage or deformation.
Fans and heatsinks: Excessive dust buildup on the heatsink and cooling fan impellers
may lead to overheating. Lightly brush and vacuum clean.
Instructions for fan replacement: Contact Customer Service for assistance in replacing
the cooling fan in the event it should fail. Use only fans approved by Phase Technologies.
Unapproved fans may not be able to move enough air to properly cool the unit, leading to
component damage.
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