13
Ductless
Fume
Hoods
Chapter 3 – Basic Hood Operation
3.1
Sash
Window
Operation
3.1.1
Sash
Window
State
3.1.2
Operating
Motorized
Sash
Window
(Only
for
hoods
with
motorized
sash
window)
The
motorized
sash
uses
a
“push
and
hold”
mechanism,
so
if
you
remove
your
finger
from
the
button
the
sash
will
stop
immediately
–
this
is
a
safety
feature
to
control
the
closure
and
prevent
anything
getting
trapped
in
the
aperture
as
the
sash
descends.
Lower
Sash
from
Fully
Open
Position
When
the
sash
is
fully
open,
pressing
the
down
button
and
holding
it
will
cause
the
sash
to
move
to
the
Safe
Height
setting
and
stop.
If
the
fluorescent
lights
are
on
as
the
sash
descends,
they
will
stay
on
as
long
as
the
sash
stops
in
the
Safe
Position.
If
you
release
the
button
before
the
sash
has
reached
Safe
Position
the
lights
will
switch
off
automatically.
Lower
Sash
from
Safe
Height
Position
When
the
sash
is
at
safe
operating
height
pressing
the
down
button
and
holding
it
will
cause
the
sash
to
move
down
to
the
fully
closed
position
and
stop.
If
the
fluorescent
lights
are
on
as
the
sash
descends,
they
will
switch
off
automatically
as
soon
as
the
sash
reaches
fully
closed.
If
you
release
the
button
before
the
sash
has
reached
the
fully
closed
position
the
lights
will
switch
off
automatically
Raise
Sash
from
Fully
Closed
Position
When
the
sash
is
fully
closed,
pressing
the
up
button
and
holding
it
will
prompt
the
user
to
input
the
password
to
turn
on
the
fan.
If
the
password
is
correct,
if
it
was
on
fan
will
turn
on
and
the
sash
will
move
up
to
the
Safe
Height
setting
and
stop.
Raise
Sash
from
Safe
Height
Position
When
the
sash
is
safe
operation
position,
pressing
the
up
button
and
holding
it
will
cause
the
sash
to
move
up
to
the
fully
open
position
and
stop.
If
the
fluorescent
lights
are
on
as
the
sash
rises,
they
will
stay
on
as
long
as
the
sash
is
allowed
to
fully
open.
Stopping
the
sash
midway
will
cause
the
lights
to
switch
off
automatically.
Sash
is
fully
open
Blower
can
be
active
Fluorescent
lights
can
be
used
Unsafe
working
condition
Sash
is
in
safe
position
Blower
can
be
activated
Fluorescent
lights
can
be
used
Safe
working
condition
Sash
is
fully
closed
Blower
can’t
be
activated
Fluorescent
lights
can’t
be
used
Summary of Contents for Ascent max
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