Vertiv Liebert GXT3 Series User Manual

10.3 Precautions
Although the Liebert GXT3 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 GXT3 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 UPS.
• Do not place the Liebert GXT3 power cord where it might be damaged.
10.4 Checking UPS Status
Emerson recommends checking the UPS operation status every six months.
• Check whether the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an alarm?
• Check whether 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 whether 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.
10.5 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 buzzer 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 a 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.
10.6 Replacing the Power Module on 8000 and 10,000VA models
CAUTION: The UPS must be switched to manual bypass before personnel begin to replace the power module.
NOTICE
During the procedure, the connected load will not be protected from power disturbances, such as spikes, sags
and failure.
To remove the UPS power module without shutting off power to the connected load:
1. Place the UPS on internal bypass. This may be done by any of the three following methods:
a. Press the Off button on the front panel one time.
b. Slide the bracket away from the manual bypass switch on the rear of the UPS; this requires loosening the
captive screw and sliding the bracket away from the manual bypass switch.
c. Remove the front grille covering the power module.
2. Move the manual bypass breaker on the rear of the UPS to the bypass position; this requires loosening the
captive screw and sliding the bracket away from the manual bypass switch (see Figure 3.7 on page18).
3. Open the input circuit breaker on the rear of the UPS (see Figure 3.7 on page18).
4. Open the output circuit breaker on the rear of the UPS (see Figure 3.7 on page18).
5. Remove the top two front plastic bezels by pulling them forward.
Vertiv | Liebert® GXT3 ™ Installer/User Guide | 50
FOR HISTORICAL USE ONLY

Vertiv Liebert GXT3 Series Specifications

General

Brand	Vertiv
Model	Liebert GXT3 Series
Category	UPS
Language	English