Vertiv
™
| Liebert® XDO | User Manual
20
3 Electrical Installation
This chapter introduces the electrical installation of Vertiv
™
Liebert® XDO unit, including installation notes, cabling and
electrical inspection for the unit.
Note1: Liebert XDO unit is a professional unit, used in industrial, commercial or other professional environment, and is not
sold to the general public.
3.1. Installation Tasks and Cautions
3.1.1. Cabling Connection at the Site
1. Power supply cables at the terminal.
2. The control cables at the terminal:
• The communication cables between the main unit and the terminal;
• Remote switch cables;
• Floor overflow sensor cables;
• External general alarm cables.
3.1.2. Installation Notes
3. The connection of all power cables, control cables, and ground cables must comply with the national and local electrician
regulations.
4. For full load current, refer to the unit’s nameplate. The cable size should comply with local cabling/wiring regulations.
5. Main power supply requirement: 220 V to 240 V (±10%)V, 1N, 50 Hz/60 Hz; power grid system: TN/TT.
6. The power supply cord adopts Y-type connection. If the power supply cord is damaged, it must be replaced by
professional maintenance personnel.
7. The electrical installation and maintenance must be performed by authorized and trained professionals.
8. Before connecting the circuit, use a voltmeter to measure the input power voltage, and ensure the power supply is off.
9. The unit needs to be fixed firmly with screws, guide rails or other methods during installation to avoid shaking during
startup or operation.
10. The emergency power supply off and emergency stop requirements of the air conditioner should be considered in the
power distribution system, and a suitable all-pole disconnection device for disconnection of the power supply should be
provided.
11. Without the confirmation of Vertiv technical personnel, the user cannot install electrical devices, such as electric meters,
in the unit.
