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Start-up and Shutdown Procedure
990-1401
Installation Guide APC BC300 Series 40kW 208/450/480V UPS 33
6.0 Start-up and Shutdown Procedure
6.1 Start-up from Maintenance Bypass
This section contains instructions on how to start the UPS from maintenance bypass. The steps
in this procedure apply to units with an APC-supplied Maintenance Bypass Panel.
1. Make sure that the following switches are in the following positions:
The UPS AC disconnect switch should be “OFF”.
The UPS bypass switch should be on “LINE”.
The battery breaker should be “OFF”.
2. Switch the UPS AC disconnect switch “ON”. The UPS display should show “System type
xxkVA xxxV”.
3. Within 20 seconds, the UPS display should show **Stand-by** and an audible alarm should
sound.
4. Ensure that the external battery breaker for the battery system is set to “OFF”.
5. Turn the pre-charge/discharge switch to the “pre-charge” position and keep it in this
position until the LED turns off.
6. Switch the battery breaker “ON”.
7. Press the green “ON” button located inside the front door of the UPS. The UPS display
should show “Normal operation load power xx%”.
8. Program the unit into static bypass operation:
a. Press to access the user parameters.
b. Press the or key until the display shows “Bypass operation: OFF”.
c. Press to turn static bypass operation on. The display should show “Bypass
operation”.
9. Set the UPS bypass switch to “UPS”.
10. Program the unit to normal operation:
a. Press to access the user parameters.
b. Press the or key until the display shows “Bypass operation: ON”.
c. Press to turn static bypass operation off. The display should show “Normal
operation load power xx%”.
6.2 Shutdown Procedure
WARNING
After shutting down the unit, wait at least five minutes before removing any access panels or
covers. Access panels should be removed by authorized service personnel only.
After the UPS has been shut down, the unit may still contain high voltages.
TEST BEFORE YOU TOUCH!
Before continuing, read the warnings on the inside front cover of this manual.