Liebert UPStation GXT - Manual (Page 16)

12
OPERATING PROCEDURES
START-UP AND INITIALIZATION
Follow these steps in order to start up the
GXT 6kVA UPS while connected to the
Maintenance Bypass.
O N M AINTENANCE B YPASS
1. Set the Maintenance Bypass switch (SW1) to
UPS position.
2. Close (position I) UPS Input switch (SW2).
3. Close (position I) Output Circuit breaker
(CB1).
O N UPS
1. Close (position I) battery circuit breaker.
2. Close (position I) input circuit breaker.
3. Close (position I) output circuit breaker.
4. After the start-up sequence the UPS will
automatically default to its internal bypass.
The bypass LED will be lit.
5. Press UPS On/Alarm/Battery Test button for at
least one second to turn the UPS on. The
UPS ON LED will be lit.
6. Connected equipment may now be switched
on.
SHUTTING DOWN THE UPS
Use the following procedure to power down the
system.
O N UPS
1. Press Output OFF/Bypass button for at least
1 second, twice, within 4 seconds.
2. Open (position O) UPS output, input and
battery circuit breakers.
O
N
M
AINTENANCE
B
YPASS
1. Open (position O) output breaker (CB1).
2. Open (position O) UPS input switch (SW2).
TRANSFERRING SYSTEM FROM
UPS TO MAINTENANCE BYPASS
OPERATION
1. On UPS verify that Bypass LED is lit, if not,
press UPS OFF/Bypass button for at least
one second.
2. On Maintenance Bypass verify that the
Bypass lamp is illuminated.
3. Rotate Bypass switch SW1 to the Bypass
position.
4. Set UPS Input switch SW2 to the Off position
(position O). This will remove power from UPS
input.
TRANSFERRING SYSTEM FROM
MAINTENANCE BYPASS TO UPS
OPERATION
1. On Maintenance Bypass close (position I)
UPS Input switch (SW2).
2. On UPS close (position I) input, output and
battery circuit breakers.
3. After the start-up sequence the UPS will
automatically default to its internal bypass.
The bypass LED will be lit.
4. Press UPS ON/Alarm/Battery Test button for
at least one second to turn the UPS on. The
UPS ON LED will be lit.
5. On Maintenance Bypass verify that UPS
Output LED is illuminated.
6. Rotate Bypass switch SW1 to the UPS
position.
!
CAUTION
The connected load is now
powered by the bypass source and
is not protected.