4.5.
SAFETY
DEVICES
The
heater
is
fitted
with
some
safety
devices,
such
as:
h
The
fume
temperature
detector
probe:
This
device
allows
the
fume
temperature
to
be
read
and
the
effective
operation
of
the
product
to
be
monitored
continuously;
h
A
water
temperature
detector
probe
.
This
allows
the
water
temperature
inside
the
boiler
to
be
read
and
should
the
water
temperature
should
reach
85°C
then
the
user
must
operate
the
unlock
safety
switch
positioned
in
the
rear
of
the
product.
h
The
pellet
tank
temperature
detector
probe:
It
detects
the
tank
temperature
continuously
and
causes
product
operation
to
be
locked
if
a
certain
safety
limit
value
is
exceeded;
h
An
ambient
probe:
This
probe
enables
the
temperature
in
the
room
where
the
heater
is
installed
to
be
constantly
monitored;
h
An
ambient
probe
installed
on
a
two
‐
way
remote
control
It
is
forbidden
to
fail
to
install
or
to
remove
one
of
the
above
‐
mentioned
safety
devices;
if
these
must
be
temporarily
deactivated
or
disconnected
for
maintenance
work,
they
must
be
reinstalled
in
order
to
turn
the
product
on
again.
The
action
of
one
or
these
devices
causes
an
error
message
to
be
shown
on
the
display.
When
the
messages
“Alt”,
that
indicates
the
occurrence
of
an
error,
and
“Spe”,
that
indicates
the
heater
has
been
extinguished,
appear
on
the
display,
a
malfunction
has
occurred.
Possible
error
messages
displayed
are
shown
in
the
table
on
the
next
page.
The
pellets
thermostat
and
pressure
safety
operation
is
detected
and
managed
from
the
control
board
only
in
the
case
where
the
heater
is
in
operation
and
thus
in
all
the
conditions
except
that
of
OFF
and
locked.
L
Pellets
thermostat
and
pressure
switch
errors
are
placed
in
series
electrically
so
that
if
only
one
of
these
problems
arises
the
heater
is
automatically
extinguished
and
then
locked.
It
could
occur
that
one
or
more
probes
are
shut
down
or
short
‐
circuited,
and
this
would
be
detected
at
the
Check
‐
up
stage.
Malfunctions
of
these
probes
could
cause
failures
to
light,
continuous
conditions
of
modulation
or
boiler
or
ambient
temperatures
unchanged
over
time.
When
these
events
occur,
please
contact
authorised
personnel.