Piazzetta P963 THERMO Instructions For Installation, Use And Maintenance Manual page 46

Located in the boiler, its function is to prevent excessive temperature ranges.
If the water temperature reaches critical levels, the thermostat cuts off the power supply to the fuel-
loading auger, thereby stopping the supply of pellets to the grate and starting the stove shutdown
process.
• The readout 'ALC' appears in the STOVE STATUS mode.
• After approx. 60 seconds the alarm sounds (if activated).
Shut down the stove by holding the ON/OFF key down for several seconds.
• The alarm will stop.
• Wait until combustion of any pellets remaining in the grate has finished.
• Wait until the stove is cooled up and reset the thermostat .
• After having cleaned the grate, restart the stove by pressing the ON/OFF key. (The readout SAFETY
THERMAL must no longer appear on the display. If this is not the case repeat the process described
above.)
Sensor
Connected to the electronic board, it constantly monitors the working
temperature allowing the stove to be used in all safety.
If the temperature exceeds the fixed safety limit the board cuts off the power
supply to the fuel-loading auger thus depriving the grate of pellets and starting
the stove shutdown process.
• In the upper part of the display appears the message "SAFETY" and in the
lover part appears "BOILER".
• The readout "MASS H2O" and the flue gas temperature appear in the STOVE
Water sensor
STATUS mode.
• After approx. 60 seconds the alarm sounds (if activated).
• Shut down the stove by holding the ON/OFF key down for several seconds.
• The alarm stops.
• Wait until you are sure that combustion of any pellets remaining in the grate
has stopped.
• Check for and remove whatever has triggered the safety device.
• After having cleaned the grate restart the stove by pressing the ON/OFF key.
If the sensor is momentarily or accidentally removed from its normal position,
or is not connected properly to the electronic board.
• The readout "NO CONN" and the flue gas temperature will appear in the
STOVE STATUS mode.
Water sensor
• After approx. 60 seconds the alarm sounds (if activated).
disconnected
• Shut down the stove by holding the ON/OFF key down for several seconds.
• The alarm stops.
• Call the After-Sales Service Centre.
46
WATER TEMPERATURE IN THE BOILER
Description
WHEN ACTIVATED
WHAT TO DO
WATER IN BOILER TEMPERATURE SENSOR
Description
WHEN ACTIVATED
WHAT TO DO
WHEN ACTIVATED
WHAT TO DO
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Display
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T H E R M A L
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Display
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