Stop/Start UPS and Operating the External Service Bypass
990-4034
User Guide APC Silcon 10-40kW 208V/480V UPS 7
The UPS is now isolated. Maintenance/repair, disconnection or removal can now be carried out.
2.4.1 UPS start-up
CAUTION!
Recharge batteries out of service every 3 months to prevent damage.
WARNING!
Internal DC capacitor may contain energy even after the UPS has been switched off. Allow for
automatic discharge by waiting at least 5 minutes after switching off UPS and battery breakers
before working on the UPS.
CAUTION!
Make sure all cable connections are in place prior to first start-up.
NOTICE!
After first system start-up, check that battery temperature is displayable (press and
simultaneously on the display – it reads NV (not valid) if incorrectly installed). A battery capacity
test is recommended after the electric installation.
NOTICE!
If for any reason the start-up procedure is interrupted, wait for the display to show the step 4
message: “Stop charge DC capacitors : YES” and repeat procedure from there.
CAUTION!
Do not close the MCCBs in the Battery Breaker Box unless the display reads: “Insert fuse or
close MCCB” – otherwise the UPS may be damaged. If the display reads “DC capacitor charge
error”, do not close MCCB.
Call for assistance.
WARNING!
If “Autostart” is active the UPS will start automatically after step 9 (with a 1-minute delay)