Precautions; Checking Ups Status; Checking Ups Functions - Emerson Liebert GXT4-5000RT208 User Manual

Maintenance

6.3 Precautions

Although the Liebert GXT4 has been designed and manufactured to ensure personal safety, improper use
can result in electrical shock or fire. To ensure safety, observe the following precautions:
• Turn Off and unplug the Liebert GXT4 before cleaning it.
• Wear rubber gloves and boots.
• Clean the UPS with a dry cloth. Do not use liquid or aerosol cleaners.
• Never block or insert any objects into the ventilation holes or other openings of the Liebert GXT4.
• Do not place the Liebert GXT4 power cord where it might be damaged.

6.4 Checking UPS Status

Emerson recommends checking the UPS operation status every six months.
• Check if the UPS is faulty: Is the Fault Indicator On? Is the UPS sounding an alarm?
• Check if the UPS is operating in Bypass mode: Normally, the UPS operates in Normal Mode; if it is
operating in Bypass Mode, stop and contact your local Emerson representative or Emerson Channel
Support.
• Check if the battery is discharging: When the utility input is normal, the battery should not discharge. If
the UPS is operating in Battery Mode, stop and contact your local Emerson representative or Emerson
Channel Support.

6.5 Checking UPS Functions

NOTE
UPS function check procedures may interrupt power supply to the connected load.
Emerson recommends checking the UPS functions once every six months.
Back up the load data before conducting the UPS functions check. Procedures are as follows:
1. Press the Standby/Manual Bypass button to check whether the alarm and indicators are normal.
2. Press the On/Alarm Silence/Manual Battery Test button to check again whether the indicators are On
and the UPS is operating normally.
3. Press the On/Alarm Silence/Manual Battery Test button for three seconds after Inverter Mode.
The UPS should initiate battery self-test. Check to determine whether the battery is operating normally.
If not, stop and contact your local Emerson representative or Emerson Channel Support.
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