15B
9.
Cleaning
And
Maintenance
The
cleaning
of
internal
must
be
carried
out
periodically
to
optimize
light
output.
Cleaning
frequency
depends
on
the
environment
in
which
the
fixture
operates:
damp,
smoky
or
particularly
dirty
surrounding
can
cause
greater
accumulation
of
dirt
on
the
fixture’s
optics.
y
Clean
with
soft
cloth
using
normal
glass
cleaning
fluid.
y
Always
dry
the
parts
carefully.
y
Clean
the
external
optics
at
least
every
20
days.
Clean
the
internal
optics
at
least
every
30/60
days.
