• ELECTRONIC CIRCUIT BOARD
LEONARDO
®
is a combustion safety and control system which allows optimal perfor-
mance in all conditions thanks to two sensors measuring the pressure level in the combu-
stion chamber and smoke temperature.
The detection of and subsequent optimisation of these two parameters is continuous in
order to correct operation anomalies in real time.
®
The LEONARDO
system offers constant combustion, automatically regulating the
draft based on the characteristics of the chimney fl ue (bends, length, shape, diameter,
etc..) and environmental conditions (wind, humidity, atmospheric pressure, installations
at high altitude, etc.).
The standards for installation must be respected. LEONARDO
recognise the type of pellets and automatically djust the fl ow moment by moment to
ensure the required level of combustion.
• ELECTRONIC CIRCUIT BOARD
Screw-1
pump
SERIAL PORT
The Dealer can install an optional on the AUX outlet for controlling the process of
switching on and off (e.g. telephone remote, local thermostat), located at the rear oh the
boiler-stove. Can be connected via special optional trestle (code 640560).
BACKUP BATTERY
A backup battery is found on the control board (3-Volt CR 2032 battery).
Its malfunction is indicated with the following messages (not considered a defect but
due to normal wear-and-tear): "Battery check".
For more detailed information, please contact the DEALER who has performed the fi rst
1st ignition.
GENERAL INFORMATION
back of boiler
Water outlet
probe
Vacuum gauge
Reading
points
Smoke expul-
sion motor
Screw-2
®
system is also able to
FUSE two fuses are inserted in the so-
cket with switch, located on the back of
the boiler, one of which operational (*)
and the other is held in reserve (* *).
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* **