XPRT-6kVA, XPRT-10kVA USER’S MANUAL
UNINTERRUPTIBLE POWER SUPPLY (UPS)
Xtreme Power Conversion® (XPC) Corporation (Rev 2/7/13)
Page 47
Maintenance Bypass
It is possible to bypass the UPS for maintenance purposes using the Maintenance Bypass Switch on the
6kVA PDU or use the standard bypass built into the 10kVA model. If required, proceed with the
following steps:
1.
Switch the UPS on BYPASS by
a.
For 6kVA
i.
Press the keypad UPS OFF button on the front panel for 1 second.
ii.
Switch the Maintenance Bypass Switch to BYPASS (FIG 55).
FIG 55 – 6KVA MAINTENANCE BYPASS SWITCH TO UTILITY
iii.
Switch the UPS off by pressing the keypad UPS OFF button on the front panel for
1 second.
iv.
Open the OUTPUT CIRCUIT BREAKER.
v.
Open the INPUT CIRCUIT BREAKER.
b.
For 10kVA
i.
Remove the BYPASS PROTECTION COVER (FIG 56).
FIG 56 – 10KVA MAINTENANCE BYPASS SWITCH TO UTILITY
ii.
Remove the BYPASS LOCK PLATE before switching to BYPASS (FIG 61).
iii.
Press the keypad UPS OFF button on the front panel for 1 second.
iv.
Switch the Maintenance Bypass Switch to BYPASS (FIG 61).
v.
Open the OUTPUT CIRCUIT BREAKER.
vi.
Open the INPUT CIRCUIT BREAKER.
2.
The UPS is now operating in UTILITY BYPASS MODE and maintenance can be performed.
NOTE
After the UPS is shutdown or in “External Bypass” condition, the residual DC voltage in the
unit will be eliminated within 5 minutes.
