UPS Field Service & Maintenance Services

Annual Service, Major

Visual Inspection:

• Connectors.
  
• Components.
  
• Room.
• Check all primary and secondary circuits for proper torque.
  
• Check all electrical connections for proper torque and general condition.
  
• Clean and inspect all logic cards.
  
• Check all system level alarms.
  
• Verify that all diagnostic tests function properly.
  
• Verify all protection settings.

Measure, check, record, and adjust if necessary:

• Input voltages.
  
• Input currents.
  
• DC voltage.
  
• DC current.
  
• AC ripple voltage.
  
• AC ripple current.
  
• Output voltages.
  
• Output currents. 
  
• Output waveforms.
  
• All power supply voltages
  
• Check and verify manual transfers from UPS system to normal bypass and from normal bypass to UPS system.
  
• Check and verify automatic transfers.
  
• Check and replace all filters (as required).

Perform complete thermal scan of all possible electrical connections.

Remove all foreign debris from equipment compartments, where applicable.

Check and record room ambient temperature and verify proper operation of ventilation equipment. 

Documentation of inspection with recommendations for any corrective action deemed necessary will be provided.

Semi-Annual Service, Minor

Visual Inspection:

• Connectors.
  
• Components.
  
• Room.

Measure, check, record, and adjust if necessary:

• Input voltages.
  
• Input currents.
  
• DC voltage.
  
• DC current.
  
• AC ripple voltage.
  
• AC ripple current.
  
• Output voltages.
  
• Output currents. 
  
• Check and replace all filters (as required).

Perform complete thermal scan of all possible electrical connections.

Remove all foreign debris from equipment compartments, where applicable.

Check and record room ambient temperature and verify proper operation of ventilation equipment.

Documentation of inspection with recommendations for any corrective action deemed necessary will be provided.

Quarterly Service, Minor

Visual Inspection:

• Connectors.
  
• Components.
  
• Room.

Measure, check, record, and adjust if necessary:

• Input voltages.
  
• Input currents.
  
• DC voltage.
  
• DC current.
  
• AC ripple voltage.
  
• AC ripple current.
• Output voltages.
  
• Output currents. 
  
• Check and replace all filters (as required).

Perform complete thermal scan of all possible electrical connections.

Remove all foreign debris from equipment compartments, where applicable.

Check and record room ambient temperature and verify proper operation of ventilation equipment.

Documentation of inspection with recommendations for any corrective action deemed necessary will be provided.

Monthly Service, Minor

Visual Inspection:

• Connectors.
  
• Components.
  
• Room.

Measure, check, record, and adjust if necessary:

• Input voltages.
  
• Input currents.
  
• DC voltage.
  
• DC current.
  
• AC ripple voltage.
  
• AC ripple current.
  
• Output voltages.
• Output currents. 
  
• Check and replace all filters (as required).

Perform complete thermal scan of all possible electrical connections.

Remove all foreign debris from equipment compartments, where applicable.

Check and record room ambient temperature and verify proper operation of ventilation equipment.

Documentation of inspection with recommendations for any corrective action deemed necessary will be provided.