Safety Devices - Jolly Mec J20 Ficha De Montaje, Uso Y Mantenimiento

Safety devices

Water temperature
probe: this
thermocouple detects
the water temperature by
adjusting the operation
of the boiler.
RESTART
WATER
Safety thermostat
with manual reset
for the water
temperature: if the
temperature of the water
tank exceeds the preset
safety level of 100 °C
immediately stops the
operation of the boiler
and the display will show
" " A L A R - S I C - F A I L A L A R - S I C - F A I L " " .
To restart it, unscrew the
black cover cap and press
the white button. If you
hear "click" it means that
the thermostat has been
reset; otherwise, wait for
the water temperature to
decrease and repeat the
operation.
Anti-freeze function: if the probe in the boiler detects a water temperature of less than 6°C, the
circulation pump is automatically activated to keep the system from freezing.
Pump anti-seizure function: if the pump is not used for prolonged periods, it is activated periodically
for 10 seconds, to prevent it blocks
32
Reduction motor: if
the motor stops for
signaling
" " A L A R - D E P -
A L A R - D E P -
or
F A I L " " " " A L A R - S I C - F A I L A L A R - S I C - F A I L " "
F A I L
the boiler continues to
function until the flame
goes out for lack of fuel,
and until It has cooled
down to the minimum
level.
Smoke pressure
switch: it controls the
pressure in the smoke
duct. It blocks the pellet
loading auger in case
the drain is blocked or
there are significant
c o u n t e r p r e s s i o n s ,
for example in the
presence of wind, open
combustion chamber
door or fume extractor
failure. At the time
the pressure switch is
activated, the message
will appear
" " A L A R - D E P -
A L A R - D E P -
.
F A I L " "
F A I L
.
Flue gas temperature
sensor: thermocouple
that measures the
temperature of the
fumes while keeping the
operation or shuts the
boiler when the flue gas
temperature drops below
the preset value.
Automatic vent valve:
this valve eliminates the
air inside the boiler and
of the heating system.
Electrical safety:
the Boiler is protected
against violent surges of
current (ex. lightnings)
by the main fuse 4 A
which is located on the
control panel at the rear
of the boiler. Other fuses
to protect the electronic
boards are to be found on
the boards themselves.
Safety valve: this
valve acts to prevent
over pressurization of the
hydraulic system.
If the pressure of the boiler
or plant exceeds 3 bar it
drains the water from the
circuit.