4
BEFORE
INSTALLATION
Important:
The
downdraft
can
only
be
used
for
venting
exhaust
gas
and
fumes
outside,
and
is
not
suitable
for
recirculating.
The
intake
should
not
be
positioned
next
to
gas
appliances
without
special
precautions.
The
Downdraft
is
not
a
fire
rated
appliance.
Its
surrounding
surfaces
must
not
exceed
80
degrees
centigrade.
Flame
must
never
be
allowed
to
enter
the
intake
to
the
Downdraft.
Never
put
a
hand
or
other
object
into
the
air
intake
or
exhaust
of
motor
unit
when
the
power
is
connected.
DUCTING
REQUIREMENTS
General
Ducting
Requirements
Ducting
components
required
to
duct
the
exhaust
air
to
the
outside
Only
use
ducting
suitable
for
the
venting
of
kitchen
exhaust
gas
and
fumes.
Parmco
Appliances
have
a
comprehensive
range
of
ducting
components
available.
For
optimum
efficiency,
ensure
the
use
of:
short
smooth
exhaust
pipe
as
few
pipe
bends
as
possible
pipe
diameters
of
150mm
There
shall
be
adequate
ventilation
of
the
room
when
the
range
hood
is
used
at
the
same
time
as
appliances
burning
gas
or
other
fuels
(not
applicable
to
appliances
that
only
discharge
the
air
back
into
the
room).
As
a
rule
of
thumb,
each
90
degree
bend
is
equivalent
to
about
5
metres
of
smooth
bore
ducting.
Flexible
ducting
or
ducting
that
does
not
have
a
smooth
bore
should
be
used
with
care
due
to
the
adverse
effect
on
airflow
performance.
For
optimum
efficiency,
total
ducting
length
including
bends
and
allowance
for
ducting
not
having
a
smooth
bore
should
not
be
more
than
the
equivalent
of
15
metres
of
150mm
diameter
or
larger
diameter
ducting.
Summary of Contents for In-bench 600mm
Page 23: ...21 Remote Mounting In Wall Airbox...
Page 24: ...22 600 In wall Mega...
