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The command and control system of the boiler running performs:
The command and control system is made of the following components:
- the ignition and the protection when the flame is extinguished, provided by the electronic
ignition;
- the protection when the gas is switched off, provided by electro-valve;
- the water pressure signalling in the boiler, provided by minimum pressure sensor;
- the temperature signalling on the heating and DHW circuits, provided by the electronic board
functions;
- the setting of the heating cycle following the instructions of the temperature control switch;
- the safety of the boiler against excessive temperature, provided by the safety thermostat at
overpressure, through the safety valve and at water leakages through the minimum pressure
switch from the circuit;
-
protection against draft deficiency, by the fan derangement or the exhaust piping blockage of
the exhaust gases, provided by the combustion pressure switch .
-
the electronic board
-
- heating circuit temperature
sensor
- DHW temperature sensor
- Flowmeter
- Ignition/ ionization electrode
as a
controller of the boiler running
(see the attached drawing).
the measuring and pilot cells
of the functional parameters for the
boiler
which sends the
temperature signal to the electronic
control block of the heating circuit.
which sends the temperature signal
to the electronic control block of the
DHW circuit.
as a detector of
the DHW consumption which sends
the DHW circuit running command
to the electronic control block.
(8) with double role, of combustion
flame activation and sensing.
- Air pressure switch (9)
- Temperature sensors
- Temperature switch (10)
- Programmer ambient sensor
- Water pressure sensor
The external shell
as a detector and controller of the exhaust gases, which
determines the heating and DHW circuits running.
as reading the temperature on the heating circuit (the electronic
board display).
as a detector and controller of the maximum temperature on the
heating circuit which sends the non-running command of the heating circuit in case a maximum
admitted temperature is exceeded.
as setting the ambient temperature from a room (optional).
as a detector of the minimum pressure on the heating circuit.
It has a parallelepipedal shape. It is detachable and electrostatically painted.
The shell covers the pressurized combustion chamber and the enclosed installations.
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