PRINCIPAL COMPONENTS OF THE BOILER
The heat generator
It is designed to supply the necessary heat for the heating exchange with the heating and DHW
circuits. It is made of the following elements:
The gas feeding circuit will be performed through a reducing valve which will set the inlet
pressure at 20-25 mbar NG, respectively 30-37 mbar for LPG.
It is compulsory to mount a pressure controller on the gas
feeding circuit.
1. The gas valve
2. The burner
is designed to allow a
continuous modulation of combustion,
supplying the minimum, medium and
maximum gas pressures required by the
boiler running at the minimum, medium and
maximum load. The connector between the
gas valve and the burner is the copper pipe
(14x1).
is stainless-made, forced or
atmospherics, with 11 cannular inclines and it
runs with fuel gas (NG or LPG). The burner
output is set in a modulated system by means
of a gas modulating valve so that it supply a
maximum useful power of 23,7 kW.
3. The combustion chamber
is design to
allow the heat transfer to the heat exchanger
with less heat leakages. We chose a simple
constructive solution as a rectangular piping
of 170 mm between the burner and the heat
exchanger. To reduce the heat leakages, the
piping walls are isolated indoor with heat
insulating material (ceramics fibres).
4
3
2
1
Domestic cold water pressure
Exhaust gases temperature at rated output
Burned gases connection ( input- output)
Burned gases connection length
Orientative values
Maximum water content in the installation
Maximum surface of the precinct
0,2 - 8 bar
142,4
°C
O 100 / O 60
Max 3 m
150 l
150 m
²
6
