Description of Contract

  • One (1) Year full coverage
  • Emergency Service 5×8, Monday-Friday
  • Including all parts, labor and expenses
  • Response time is next business day or less
  • Contract includes one (1) PM inspection:
    • To be performed during normal business hours
    • Includes full UPS Electonics and Battery maintenance
    • Battery replacement not covered under contract
Contact us …
or call anytime …
800-306-1125

UPS Preventative Maintenance – Detailed Check List

  • Visual Inspection
    • insulation, Overheating, Damage
  • Cleaning / Air Flow
    • Check fans, Door/Compartment seals
    • Replace Filters (customer supplied)
    • Clean Module
  • Check/Record Voltage Waveforms and Currents
    • Input/Output, Rectifier, AC&DC Caps
  • Power Measurements (on line)
    • Output RMS Current (Phase and Neutral)
    • Output Peak Current (Phase and Neutral)
  • Metering
    • DC Volts and Current
    • Input Volts/Current
    • Output Volts/Current
    • Frequency
  • Fuses
    • Verify type, value, condition
  • Synchronizing
    • Verify Utility Sync & Transfer to Bypass
    • Transfer from Bypass to UPS
    • Verify Voltage and Phase Lockout
    • Verify Static Bypass Operation
  • Control Calibrations
    • Check/Adjust as necessary
  • Circuit Breakers/Isolators
    • Verify Free Travel
    • Check Mag/Thermal Settings
  • system/Module Safety Parameters
    • Check Battery Current Limit *
    • Check Input Current Limit *
    • Check Overload Levels *
    • Check Overtemp Circuits *

*Where possible/available

Battery Preventative Maintenance – Detailed Check List

  • Perform safety evaluation of battery, racks, protective equipment and environment. Note and record any discrepancies.
  • Record the ambient temperature of the battery room.
  • Clean normal cell dirt/dust accumulation. Note: Some environments may not allow for practical management of dust accumulation.
  • Inspect each jar for signs of cracks, excessive bulging and leakage.
  • Measure and record the full string charging voltage and current.
  • Measure and record the AC ripple voltage and current.
  • Measure and record the voltage to ground for each string/cabinet.
  • Measure and record the float voltage across each cell/jar.
  • Measure and record the conductance of each cell/jar.
  • Check for corrosion on battery terminals and connectors. Clean as necessary.