990-2440 AIS 5000 400V Installation Manual 2
User Safety
WARNING!
This UPS contains hazardous AC and DC voltages. Only qualified electricians
should connect the UPS, AC line and external batteries, and must be familiar with
batteries and battery installation.
Before installing, maintaining or servicing the UPS, shut off the UPS and
disconnect all sources of AC and DC power.
As the UPS has no built-in disconnection devices to switch off external AC and DC
input power, ensure that disconnection devices are available as separate parts in
connection with the installation!
AC and/or DC voltage will always involve a potential risk of AC voltage at UPS
output generated from either batteries or utility. To avoid equipment damage or
personal injury, always assume that there may be voltage at UPS output.
This system is equipped with an auto-start function . If activated, the system may
start without warning. Refer to the “Programming” section fo r information on de-
activation.
The installer must provide each external disconnecting device for this UPS system
with labels with the following text:
“Isolate the Uninterruptible Power Supply (UPS) as instructed in this guide before
working on circuit”
WARNING!
TEST BEFORE YOU TOUCH!
To reduce the risk of fire or electric shocks, install the UPS and external batteries
in a temperature and humidity controlled indoor area, free of conductive
contaminants.
WARNING!
UPS batteries are high-current sources. Shorting battery terminals, DC terminals
or DC busbars can cause severe arcing, equipment damage and injury. A short
circuit can cause a battery to explode. Always wear protective clothing and eye
protection and use insulated tools when working on batteries.
Caution
CAUTION!
This unit contains components sensitive to electrostatic discharge (ESD). If you do not
follow the ESD procedures, you may cause severe damage to electronic components.