Safety
Warning
1
Only
professional
technicians
are
allowed
for
installation
and
maintenance
.
2
Installation
in
any
damp
,
condensed
-
phase
environment
with
inflammable
and
explosive
gas
is
forbidden
.
3
When
the
product
is
being
installed
or
maintained
,
the
power
must
be
switched
off
.
4
You
are
prohibited
from
touching
the
conductive
part
when
the
product
is
operating
.