Vertiv | Liebert XDH | User Manual
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Electrical Installation
Chapter 4: Electrical Installation
This chapter describes the electrical installation of XDH precision air conditioner, including task introduction,
installation precautions, end cable connection and electrical inspection.
4.1.Task Introduction and Notes
4.1.1.Cables to Connect On-site
• Power cable of the XDP
• Control cable of the XDP
• Communication cable between the XDP and the XDH
•
Remote power-on/off cable
•
Cable of the water sensor on the floor
• Remote temperature sensor cable
• External common alarm cable
4.1.2.Installation Notes
• The connection of all power cables, control cables and ground cables should comply with the local and national
electrical regulations.
• See the equipment name-plate for the full load current. The cable sizes should meet the local wiring standards.
• Mains supply requirement: 220 V±10%, 1N, 50 Hz/ 60 Hz.
• The application grid for this air conditioner, TN, TT star connection power system; consult Vertiv local
representative for other connection.
• The electrical installation and maintenance must be performed by authorized professional personnel.
• If the soft power cable uses Y-connection, and if the cable is damaged, it must be replaced by professional service
personnel.
• Before performing any electrical works, use a voltmeter to measure the power supply voltage and ensure that the
power supply has been switched off.
•
The equipment needs to be fixed with screws, rails and other methods to avoid shaking during startup or running
process.
• A rated circuit breaker shall be provided to disconnect the unit from power supply.
