EN
8.
Maintenance
I.
General
The
UPS
is
virtually
maintenance
free:
take
care
of
proper
environmental
conditions
and
keep
air
inlets
‐
outlets
free
of
dust.
II.
Fuses
If
the
AC
input
fuse
is
defect,
be
sure
it
is
replaced
by
a
compatible
fuse
from
the
same
make
and
type.
Never
short
circuit
batteries.
When
working
with
batteries,
remove
watches,
rings
or
\other
metal
objects,
and
only
use
insulated
tools
.
III.
Batteries
When
replacing
the
batteries,
use
batteries
with
exactly
same
specifications.
Read
all
safety
rules
before
replacing
the
battery.