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H002a

6.2.5 Switching Back to Normal Parallel/Redundant Operation

1.Turn input switch (Q001) and output switch (Q002) to position “1”

2.Charge capacitor, connect battery and start up UPS

UPS will automatically switch to normal operation and start load-sharing with other parallelled UPS(s).

WARNING!

System will discharge built-in capacitors, but check terminal voltage before proceding.

990-4053

Installation Guide APC Silcon 480kW 400V UPS

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APC 990-4053 manual Switching Back to Normal Parallel/Redundant Operation