Apc SILCON 60-80KW 208/480V UPS User Manual download pdf (Page 29)

Maintenance & Testing

990-4035

User Guide APC Silcon 60-80kW 208V/480V UPS 29

6.0 Maintenance & Testing

UPS maintenance should be carried out by trained service engineers only. Service and

maintenance contract is recommended.

6.1 Fan

It is recommended to replace fans every 3 years.

6.2 Battery Monitoring Test

Systems with built-in batteries have a standard battery monitoring feature (optional in other

systems).

Battery Test Results:

1. Battery OK. Back-up time normal.

2. Reduced battery capacity - “Battery weak” message appears.

3. Battery capacity too low - “Battery defective” message appears.

Carry out battery monitoring test by discharging max. 25% of battery energy. For systems with

no battery monitor/no excess back-up time, a battery capacity test is recommended every 6

months.

Carry out battery tests when load is least affected.

6.3 Battery Capacity Test

CAUTION!

Allow 16 hours to restore full back-up time after battery capacity tests.

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Apc SILCON 60-80KW 208/480V UPS User Manual Page 29