The
l
ow
d
raft
Pressure
Switch
is
a
dif
ferential
pressure
switch
that
senses
the
pressure
between
the
firebox
and
the
room.
If
the
negative
pressure
in
the
firebox
becomes
too
low
for
proper
combustion,
the
switch
opens,
interrupting
power
to
th
e
fe
ed
m
ot
or
a
nd
th
e
ig
ni
te
r.
If
th
e
sw
itc
h
"o
pe
ns
" d
ur
in
g
a
re
st
period,
the
control
will
not
try
to
feed
or
ignite.
If
the
circuit
opens
du
rin
g
a
fe
ed
o
r i
gn
iti
on
c
yc
le
, t
he
in
di
ca
to
r l
ig
ht
s
w
ill
re
m
ai
n
"o
n"
.
The
Control
b
oard/ESP
combinatio
n
is
responsible
for
all
high
lim
it
sa
fe
ty
c
on
tro
l.
Th
er
e
ar
e
2
hi
gh
li
m
its
,
on
e
no
rm
al
o
pe
ra
tio
n
high
limit
and
one
backup
high
limit.
The
control
has
an
automatic
di
ag
no
st
ic
c
irc
ui
t t
ha
t c
on
tin
uo
us
ly
m
on
ito
rs
th
e
ES
P
an
d
R
oo
m
S
en
so
r
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
m
otor & Component
locations
Accentra Pellet Stove Safety
d
evices
ESP- Probe
Low Draft Pressure Switch
Air Intake Flapper
Feed Motor
Combustion Blower
Distribution Blower
3" Flue Pipe Connector
Th
e
h
op
pe
r l
id
P
os
iti
on
S
w
itc
h
is
a
p
lu
ng
er
s
ty
le
s
w
itc
h
lo
ca
te
d
in
the
hopper
lid
opening.
When
the
hopper
lid
is
closed
properly
,
it
closes
the
switch.
If
the
hopper
lid
is
not
fully
closed,
the
switch
opens, intercepting
power
to the feed motor and igniter
. If the switch
"opens"
during
a
rest
period,
the
control
will
not
try
to
feed
or
ignite.
If the circuit opens
during
a feed or ignition
cycle, the indicator
lights
will remain "on".
