GB
Safety devices
Water temperature probe:
if the water temperature
approaches the blocking
temperature (100 °C), the
probe requires to interrupt
the supply of pellets.
Flue gas temperature
sensor:
thermocouple that
measures the temperature
of the fumes while keeping
the operation or shuts the
thermostove when the flue
gas temperature drops
below the preset value.
Pressure switch:
monitors
depression in the smoke
duct. It is designed to shut
down the pellet feed screw
in the event of an obstructed
flue or significant back-
pressure in the presence
of wind. At the time of the
pressure switch will show
“
A L A R - D E P - F A I L
”.
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
thermostove
and
the display will show
“
A L A R - S I C - F A I L
”. To restart
you need to reset manually.
Electrical safety:
the
stove 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 thermostove.
Other fuses to protect the
electronic boards are to
be found on the boards
themselves.
Reduction motor:
if the motor stops, the
thermostove continues to
function until the flame goes
out for lack of fuel, and until
It has cooled down to the
minimum level.
Automatic vent valve:
this valve eliminates the air
inside the thermostove and
of the heating system.
Safety valve:
this valve
acts to prevent over
pressurization
of
the
hydraulic system.
If the pressure of the
thermostove
or
plant
exceeds 2.5 bar it drains the
water from the circuit.
Anti-freeze function:
if the probe in the thermostove detects a water temperature of less than 5°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.
Tampering with the safety devices is prohibited.
It is only after eliminating the cause which gave
rise to the intervention of the safety system, that it is possible to relight the stove and thus reset
the automatic operation of the sensor. To understand which anomaly has occurred, consult this
manual at paragraph relating to alarms which explains what to do based on the alarm message the
stove display.
RESTART
WATER
Summary of Contents for CentroPelet ZV 20
Page 27: ...GB...
