Modular UPS system Preventive Maintenance

Daily Checks:

1. UPS status and alarm indicators
2. Battery temperature and charge level
3. Input/output voltage and frequency
4. Load percentage and power factor
5. Cooling system operation (airflow, temperature)
6. Electrical panel and connection checks
7. UPS event logs and history
8. Verify UPS synchronization with external power sources (if applicable)

Weekly Checks:

1. Perform UPS self-test (if equipped)
2. Inspect battery connections and terminals
3. Check UPS fan operation and cleanliness
4. Verify proper grounding and bonding
5. Inspect electrical connections and cables
6. Check for signs of water or moisture intrusion
7. Review UPS maintenance records and schedules
8. Verify UPS firmware and software versions

Monthly Checks:

1. Perform battery discharge test (if equipped)
2. Inspect UPS capacitors and replace as needed
3. Check UPS transformer and inductor condition
4. Verify cooling system fluid levels and quality
5. Inspect UPS electrical panels and components

Quarterly Checks:

1. Perform UPS load testing (if equipped)
2. Inspect UPS battery cells and replace as needed
3. Check UPS control board and component condition
4. Verify UPS communication and network connectivity

Semiannual Checks:

1. Perform UPS maintenance bypass test
2. Inspect UPS electrical connections and tighten as needed
3. Check UPS grounding and bonding system

Annual Checks:

1. Perform comprehensive UPS maintenance
2. Inspect UPS batteries and replace entire string (if necessary)
3. Check UPS cooling system and replace filters
4. Verify UPS electrical panel and connection integrity

Additional Recommendations:

1. Regularly review UPS event logs and history
2. Maintain accurate UPS maintenance records
3. Schedule regular UPS training for operations staff
4. Ensure UPS documentation is up-to-date
5. Consider implementing a UPS monitoring system

Modular UPS Specific Checks:

1. Verify module redundancy and operation
2. Check module synchronization and phasing
3. Inspect module electrical connections and cooling
4. Verify module firmware and software versions
5. Perform module-level testing and diagnostics

Data Center Specific Considerations:

1. Ensure UPS alignment with data center tier requirements
2. Verify UPS compatibility with data center electrical infrastructure
3. Consider UPS scalability and flexibility
4. Ensure UPS maintenance does not impact data center operations
5. Regularly review data center power usage effectiveness (PUE)

Manufacturers’ Recommendations:

1. Follow manufacturer-specific maintenance schedules
2. Use manufacturer-recommended replacement parts
3. Consult manufacturer documentation and guidelines
4. Engage manufacturer-trained service technicians

Best Practices:

1. Regularly review and update UPS maintenance procedures
2. Ensure UPS maintenance staff are trained
3. Implement a UPS monitoring and alerting system