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

Start-Up and Initialization

Follow these steps to start up the UPS.
1. Ensure the manual bypass switch (SW1) is in
UPS position. Close Input Circuit Breaker
(CB1) and close the Control Enable Switch
(SW2). You should see the following on the
LCD window:
UPS Initializing
Please wait...
Press to Enable UPS
Output.
2. Press button.
On Mains/Utility
Output kVA = xx.x
Battery Minutes yyy
Press for menu
3. Press to access the Main Menu.

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).

OPERATING PROCEDURES

Manual Transfer to Bypass

In the event of a UPS overload or failure, the UPS
will transfer to bypass via its automatic bypass
switch. It is possible for the user to manually
transfer the UPS to bypass by operating the
manual bypass switch located behind the lowest
front cover to the bypass position.
Follow the on-screen instructions.
Main Menu
UPS Status
UPS Configuration
Display Date/Time
Event Log
Alarm Log
> Transfer to Bypass
Module Replacement
Tools
Transfer to Bypass
Press for bypass
Press ESC to cancel
Assert manual bypass
It should be noted that once
bypass alarm will annunciate and cannot be
canceled until the manual bypass switch is operated.
Manual
Bypass
Switch
(SW1)
UPS on manual bypass
It should be noted that the load is not protected
from AC Mains interruptions when 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
23
is pressed, the
Bypass
UPS On