Liebert EXL S1 Installation
User Manual 10H52226UM60 - Rev. 1 - 01/2017
36
3. INSTALLATION
3.1. Electrical preparations
Warning
For reasons of safety, the secondary access panel MUST NOT BE REMOVED. If, for
any reason, it is necessary to remove this panel, the entire installation must be
switched off and de-energized; otherwise complete safety cannot be guaranteed.
The UPS is connected to 400/230V three-phase power lines; DC voltages above 500V
are also found in the battery circuit. Installation must only be carried out by qualified
personnel in accordance with these operating instructions and both national and local
electrical codes. Since UPS devices create a large leakage current, connect the device
to ground prior to placement into service. Improper connection can damage the device
and lead to injuries and even death.
Warning
With regard to electromagnetic conformance, the device was developed in accordance
with product standard IEC/EN 62040-2:2006. The UPS must be protected against
overvoltages in line power in excess of those at which it was tested. Over voltages in
the power supply system may occur for several reasons, including lightning strikes,
ON/OFF switching of inductive or capacitive loads (such as power transformers or
capacitor banks), and short-circuit shutdowns.
Notice
QS1, QS2 and QS4 are used for disconnecting.
Warning
Do not operate the battery switch battery breaker when the inverter is ON.
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