Operating Procedures; Start-Up And Initialization; Shutting Down The Ups; Manual Transfer To Bypass - Liebert NfinityTM User Manual

3.4

Operating Procedures

3.4.1

Start-Up and Initialization

Follow these steps to start up the UPS.
1. Ensure the manual bypass switch is in
UPS position. Close Input Circuit Breaker
(CB1) and close the Control Enable
Switch (SW2). You should see the
following on the LCD display window:
UPS Initializing
Please wait...
*Press
UPS Output.
2. Press or
On Mains/Utility
Output % = xx
Battery Minutes yyy
Press
3. Press to access the Main Menu.
3.4.2

Shutting Down the UPS

Use the following procedure to power down
the UPS.
1. Press to disable power from the
connected equipment.
2. Verify request to disable the output by
pressing
3. Turn off the Enable Switch (SW2). Open
the Input Circuit Breaker (CB1).
to Enable
button.
ESC
for menu
.
3.4.3

Manual Transfer to Bypass

To manually transfer the UPS to bypass,
move the manual bypass switch to the bypass
position. The manual bypass switch is behind
the front bottom bezel. To transfer the UPS
from bypass to normal mode, follow the on-
screen instructions.
Main Menu
> Transfer to Bypass
Transfer to Bypass
Press
Press ESC to cancel
Assert manual bypass
Once is pressed, the bypass alarm will
annunciate and cannot be canceled until the
manual bypass switch is operated.
Manual
Bypass
Switch
UPS on manual bypass
NOTE
The load is not protected from utility
interruptions when the UPS is in
bypass mode.
To transfer the UPS from bypass to normal
mode, simply operate the manual bypass
switch back to the UPS position.
On return from bypass, the following screen
will be displayed.
No active alarms
See Event Log
19
Operating Instructions
for bypass
On Bypass
On UPS