Liebert UPStation GXT OPERATING PROCEDURES

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.

ON MAINTENANCE BYPASS

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).

ON 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.

ON 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.

ON MAINTENANCE BYPASS

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

is not protected.