18
2.10 Dust screen (optional)
Using
dust
screen
can
avoid
the
dust;
in
this
wan
UPS
can
be
saved
without
dust.
Installation
of
the
dust
screen
as
below:
1.
Remove
front
panel
2.
Install
dust
screen
3.
Install
front
panel
2.11 Isolated transformer box (optional)
Isolated
transformer
make
the
current
more
balance,
user
can
select
it
on
the
output.