MaintenancePower Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.com 41ANNUAL INSPECTION■ Perform all of the 30-day and6-month checks and tasks■ Additional Annual Items❑ See Comments— — ✔ Note ALL the CONNECTIONS■ Inverter❑ Filters❑ Capacitors❑ Internal connections❑ Power meter❑ Monitoring Systems❑ Cabinet Doors and Locks❑ HMI Display❑ Bolt-Downs❑ Other as SpecifiedCooling System Inspection ✔ ✔ ✔ Inspection of liquid cooling system for any sign of leakage, liquidaccumulation, discoloration, loss of pressure and/or flow, and operatingpressure higher than normal.Cooling Hoses Inspection — — ✔ Inspect the cooling system hoses for any sign of cracks, leakage,deformation, discoloration, chocking, and any other abnormality.■ Replace if necessaryExpansion Tank — — ✔ Refill and re-charge the expansion tank as necessaryRadiator (heat exchanger) Inspection — — ✔ Inspection of the cooling system radiator (heat exchanger) for dust/dirtaccumulation, leakage, and fin damage.■ Vacuum/brush with a soft-brush, only❑ Avoid damaging/deforming the fins– Restore fins using fin-restoration tools, only■ Inspect the air inlet and exhaust ducts for any damage orblockage❑ Clean as necessary– Repair or replace as necessaryMain Blower Inspection■ Motor and Fan assembly— — ✔ Visual inspection of the Blower:■ Inspect blades for bending, cracks, deformation, wear andabrasionPerform manual operation of blower observing for;■ Abnormal noise■ Vibration– Repair or replace as necessaryLiquid Pump Inspection — — ✔ Visual Inspection of the Cooling Pump and its mounting■ Inspect for any coolant leakage■ With the inverter off, operate the motor and observe for❑ noise, vibration❑ cooling-system pressure data recordings (psi)❑ coolant flow rate (gpm)– Repair or replace as necessaryOverall Check-up — — ✔ Inspection and/or functional check of fuses, protection devices (surgeand lightning, fuses, circuit breakers, contactors, etc.), safety devices(E-stop, ground-fault circuit and components, etc.)Software upgrades — — ✔ Check for Software upgrades (consult Eaton)Main LV Circuit Breaker Inspecting andtesting— — ✔ Inspect and test main LV Circuit Breaker– Repair or replace as necessaryTable 9. 30-Day, 6-Month and Annual Inspection and Maintenance, continuedField MaintenanceTasks/Checks/Maintenance LogFirst30 DaysFirst6 Months AnnualComments1) Record in Maintenance Log2) Develop site-specific needs3) Helpful recommendations