Installation and Configuration
11 Liebert® GXT3
5.0 INSTALLATION AND CONFIGURATION
Do NOT attempt to start the UPS, turn on any circuit breaker or energize the input power until
instructed to do so in 8.2 - Initial Startup and Electrical Checks.
Visually inspect the UPS for freight damage. Report any damage to the carrier and your local dealer
or Emerson® representative.
Install the Liebert GXT3 indoors in a controlled environment, where it cannot be accidentally turned
off. Place it where air flows unrestricted around the unit. The installation location must be free of
water, flammable liquids, gases, corrosives and conductive contaminants. Maintain a minimum
clearance of 100mm (4inches) in the front and rear of the UPS. Maintain an ambient temperature
range of 0 to 40°C (32 -104°F).

5.1 Install the Main Cabinet

The Liebert GXT3 may be installed in either a tower configuration or in a rack, depending on
available space and use considerations. Determine the type of installation and follow the appropriate
instructions in either 5.1.1 - Tower UPS Installation or 5.1.2 - Rack-Mount UPS Installation.

5.1.1 Tower UPS Installation

To install the Liebert GXT3 as a tower:
1. Take out support bases from the accessories bag (see Figure6).
Figure 6 Support bases
2. If optional Liebert external battery cabinets will be connected to the Liebert GXT3, take out the
spacers shipped with the battery cabinet.
3. Connect the spacers and the support bases as shown in Figure6. Each Liebert GXT3 needs two
assembled support bases, one in the front and one in the rear.
4. Adjust the direction of the operation and display panel and logo on the Liebert GXT3.
a. Remove the front plastic bezel cover as shown in Figure7.
Figure 7 Remove the front plastic bezel cover
!
CAUTION
The UPS is heavy (see 12.0 - Specifications). Take proper precautions when lifting
or moving it.
NOTE
UPS operation in sustained temperatures outside the range of 15-25°C (59°-77°F)
reduces battery life.
Support Bases
Spacers
Connectors
Front Plastic
Bezel Cover