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STEP
7:
BACKGUARD
INSTALLATION
INSULATION
AND
RETAINER
REMOVAL
Before
the
backguard
can
be
assembled
onto
Model
PRDS304.
PRDS36
and
PRDS48
Ranges,
the
insulation
retainer
and
the
insulation
must
be
removed
to
avoid
interference.
This
insulation
is
not
required
on
the
PRDS304,
PRDS36
and
PRDS48
models.
The
High
Shelf
Back
Trim
is
shown.
The
procedure
is
the
same
for
Island
Trim
or
Low
Back
Trim
Step
1
Remove
the
four
(4)
screws
holding
in
insulation
retainer.
See
Fig.
22a.
Step
2
Slide
insulation
retainer
and
insulation
out
and
discard.
See
Fig.
22b.
NOTE:
DO
NOT
REMOVE
INSULATION
WHEN
INSTALLING
A
BACKGUARD
ON
MODELS
PRG304.
PRG36
AND
PRG48
ALL-GAS
RANGE.
FIG.
22a
FIG.
22b
Insulation
Retainer
STEP
8:
TEST
AND
ADJUSTMENT
CAUTION
Thermador
recommends
that
burner
adjustments
be
made
by
a
qualified
technician
at
the
time
of
installation.
Extreme
care
should
be
used
when
adjustments
arc
made
after
installation.
Improper
or
lack
of
adjustments
may
void
your
warranty.
Install
any
loose
components,
such
as
burner
caps
and
grates,
that
may
have
been
removed
earlier.
Be
certain
that
burner
caps
seat
properly
into
the
alignment
slots
in
the
burner
bases.
Before
testing
operation
of
the
appliance,
verify
that
the
unit
and
the
gas
supply
have
been
carefully
checked
for
leaks
and
that
the
unit
has
been
connected
to
the
electric
power
supply.
Turn
the
manual
gas
shut-off
valve
to
the
open
position.
Check
operation
of
the
sealed
gas
burners
and
grill
by
pushing
and
turning
each
knob
counterclockwise
to
"HI".
The
burner
igniters
will
click
until
the
flame
ignites.
The
two
far
left
sealed
burners
feature
XLO®,
causing
the
flame
to
cycle
on
and
off
when
the
knob
is
set
to
the
XLO
range.
This
is
normal
operation.
Burner
flames
should
be
blue
and
stable
with
no
yellow
tips,
excessive
noise,
or
lifting
of
the
flame
from
the
burner.
If
any
of
these
conditions
exist,
check
that
the
air
shutter
(grill,
griddle
and
gas
oven
only)
or
burner
ports
are
not
blocked
or
clogged.
Remove
any
blockages
that
exist.
If
the
flame
is
too
yellow,
indicating
insufficient
air,
adjust
the
shutter
counterclockwise
to
increase
air
inlet
(grill,
griddle
and
gas
oven
only).
The
sealed
top
burner
flames
should
be
approximately
1"
to
1-1/4"
high.
The
griddle,
grill,
gas
oven
and
infrared
broiler
burner
flames
should
be
as
shown
in
Fig.
23).
NOTE:
No
air
shutter
or
low
flame
adjustment
is
necessary
or
possible
with
the
sealed
top
burners.
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