32
The
l
ow
d
raft
Pressure
Switch
is
a
dif
ferential
pres
-
sure
switch
that
monitors
the
negative
pressure
(Draft)
in
the
firebox.
If
the
draft
becomes
too
low
for
proper
combustion,
the
switch
opens,
cutting
power
to
the
feed
motor
and
the
ig
n
it
e
r
c
ir
c
u
it
s
.
T
h
is
s
w
it
c
h
i
s
c
o
n
n
e
c
te
d
i
n
to
t
h
e
A
C
(
h
ig
h
voltage) wiring.
T
h
e
C
o
n
tr
o
l
b
o
a
rd
/E
S
P
c
o
m
b
in
a
ti
o
n
is
r
e
s
p
o
n
s
ib
le
f
o
r
all
high
limit
safety
control.
There
are
2
high
limits,
one
normal
operation
high
limit
and
one
backup
high
limit.
The
control
has
an
automatic
diagnostic
circuit
that
continuously
monitors
the
ESP
and
Room
Sensor
for
faults.
If
a
fault
should
occur
,
the
control
sends
a
status
alert
and
at
the
same
time
the
unit
goes
down to minimum feed/minimum burn as a safety condition.
Accentra Insert
m
otor & Component
l
ocations
Accentra Pellet Insert Safety
d
evices
b
ackdraft
d
amper
Assembly
Always
check
to
see
if
the
damper
plate
swings
freely
inward
and
that
the
seating
edges
are
not
covered
with dirt or lint.
Low Draft
Pressure
Switch
Feed Motor
Combustion Motor
Distribution Blower
(under unit)
See Fig. 10, Page 9.
Silicone
sponge
docking
gasket
motor & Component locations
The
h
opper
l
id
Position
Switch
is
found
in
the
rear
c
o
rn
e
r
o
f
th
e
h
o
p
p
e
r
o
p
e
n
in
g
.
If
t
h
e
h
o
p
p
e
r
lid
i
s
n
o
t
fu
lly
closed,
the
switch
opens,
interrupting
the
power
to
the
feed
m
o
to
r
a
n
d
t
h
e
ig
n
it
e
r
c
ir
c
u
it
s
. T
h
is
p
re
v
e
n
ts
p
o
s
s
ib
le
in
ju
ry
f
ro
m
reaching into the feeder mechanism during operation.
Hopper Lid
Position
Switch
