Technicians must not work alone in hazardous conditions that may be dangerous
to health and/or life.
Shortly after the UPS unit has been moved from a cold environment to a warm
environment, moisture condensation may appear. The UPS unit must be
completely dry before installation and operation. The acclimatization time should
be at least 2 hours.
UPS units and battery packs must not be installed in humid environment.
UPS units and battery packs must not be installed in places where they would be
exposed to direct sunlight. They must not be installed near sources of heat.
Ventilation openings in the UPS unit casing must not be blocked. Always observe
distances to ventilation openings specified in the manual.
Before connecting the units, is necessary to check the condition of all leads,
cables, connectors, sockets and plugs, as well as that of the unit itself.
The device must be connected to a power circuit (mains socket) with three
terminals (phase, neutral and grounding), including a PE grounding conductor.
Failure to observe this requirement may result in electric shock.
To reduce the risk of electric shock (in case the grounding cannot be checked),
the unit must be disconnected from the mains before installation or connecting to
other equipment. The power lead may only be connected again after making all
required connections.
A device powered through a lead with a plug has a grounding conductor that
carries away the leakage current from the receivers. The leakage currents of all
loads connected to the UPS unit's output are combined in the UPS unit's power
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