Datasheet Content
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073027_A_en
MODULATING
GAS BURNERS TWO STAGES PROGRESSIVE OR MODULATING
GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
Burners for gas two stages progressive (hi-low flame) or modulating (PID fully modulating) if equipped with addition
of optional modulation kit and probe.
They are composed by: fan at high pressurisation and combustion head with adjustment at high efficiency and high
flame stability.
Compact overall dimensions and disposition rationalized of the components with accessibility facilitated for the
operations of setting and maintenance.
Available in the versions METHANE (natural gas) or L.P.G. (to specify at the order) on demand specific versions for
town gas, coal gas or biogas.
Gas train completely assembled and tested; complete of: working valve class A - safety valve class A - gas valve proving
system - minimum gas pressure switch and gas filter.
Complete of flange and gasket for installation on generator.
Available with mechanical cam or with electronic cam.
Fig. 1 GAS P350/MCE
GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073027_A_en
MODULATING
TECHNICAL DATA GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
MODEL GAS P350/MCE GAS P450/MCE GAS P550/MCE
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [Mcal/h] 400/1200-3490 500/1600-4500 600/2000-5500
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [kW] 465/1395-4070 581/1860-5232 698/2325-6395
Gas flow G20 (NATURAL GAS) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 47/140-409 58/187-526 70/235-647
Gas flow G31 (L.P.G.) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 18/54-158 22/72-203 27/91-250
Fuel: NATURAL GAS (second family) - L.P.G. (third family)
Fuel category: I2R,I2H,I2L,I2E,I2E+,I2Er,I2ELL,I2E(R)B/I3B/P,I3+,I3P,I3B,I3R
Intermitted working operation (min. 1 stop every 24 hours) two stages progressive or modulating
Environmental conditions operation / storage: -15...+40°C / -20...+70°C, rel. humidity max. 80%
Max. temperature combustion air [°C] 60 60 60
Minimum pressure gas train D2" FS50 NATURAL GAS/L.P.G. ** [mbar] 289/125 461/200 678/288
Minimum pressure gas train DN65 FS65 NATURAL GAS/L.P.G. ** [mbar] 139/72 202/96 310/137
Minimum pressure gas train DN80 FS80 NATURAL GAS/L.P.G. ** [mbar] 84/52 124/63 188/87
Minimum pressure gas train DN100 FS100 NATURAL GAS/L.P.G. ** [mbar] 52/40 67/43 105/54
Maximum pressure at the entry of valves (Pe. max) [mbar] 500 500 500
Nominal electric power [kW] 9.4 11.4 19
Fan motor [kW] 9 11 18.5
Nominal motor current absorption [A] 18.8 22 32.6
Nominal auxiliary absorption [A] 0.6 0.6 0.6
Power supply: 3~400V, 1N~230V - 50Hz
Electric protection degree NATURAL GAS/L.P.G.: IP54/IP40 IP54/IP40 IP54/IP40
Noisiness *** min. - max. [dB(A)] 84-85 85-85 86-89
Burner weight [kg] 218 230 265
* Reference conditions: Environment temperature 20°C - Barometric pressure 1013 mbars - Altitude 0 metre (sea level).
** Minimal feeding-gas pressure to the gas train to get the maximum power of the burner, considering counter-pressure in combustion chamber of
value 0 (zero).
*** Measured sonorous pressure in the laboratory combustion, with functional burner on beta boiler to 1 metre of distance (UNI EN ISO 3746 law).
OPERATING RANGE DIAGRAM GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
>PEDU@
GASP350/M GASP450/M GASP550/M
>N:@
>0FDOK@
Fig. 2 X = Thermal power Y = Pression in the combustion chamber
GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073027_A_en
MODULATING
Fig. 3 Dimensions GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
MODEL A B C D E F G R1 R2 R3 R4 RD Gas train
weight
GAS P350/MCE - D2" FS50 490 481 1118 342 160 700 440 317 535 660 570 Rp 2 22 kg
GAS P350/MCE - DN65 FS65 490 481 1118 342 160 700 440 317 560 714 780 DN65 37 kg
GAS P350/MCE - DN80 FS80 490 481 1118 342 160 700 440 317 560 727 800 DN80 47 kg
GAS P350/MCE - DN100 FS100 490 481 1118 342 160 700 440 317 590 765 840 DN100 57 kg
GAS P450/MCE - D2" FS50 490 481 1118 382 160 700 440 317 535 660 570 Rp 2 22 kg
GAS P450/MCE - DN65 FS65 490 481 1118 382 160 700 440 317 560 714 780 DN65 37 kg
GAS P450/MCE - DN80 FS80 490 481 1118 382 160 700 440 317 560 727 800 DN80 47 kg
GAS P450/MCE - DN100 FS100 490 481 1118 382 160 700 440 317 590 765 840 DN100 57 kg
GAS P550/MCE - D2" FS50 490 481 1118 402 160 700 440 317 535 660 570 Rp 2 22 kg
GAS P550/MCE - DN65 FS65 490 481 1118 402 160 700 440 317 560 714 780 DN65 37 kg
GAS P550/MCE - DN80 FS80 490 481 1118 402 160 700 440 317 560 727 800 DN80 47 kg
GAS P550/MCE - DN100 FS100 490 481 1118 402 160 700 440 317 590 765 840 DN100 57 kg
GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073027_A_en
MODULATING
BOILER PLATE
* Suggested dimension of connection between burner
and generator.
Fig. 4 Boiler plate
MODEL L min L* L max M N min N* N max
GAS P350/MCE mm 350 360 450 M14 552 552 580
GAS P450/MCE mm 390 400 450 M14 552 552 580
GAS P550/MCE mm 410 420 450 M14 552 552 580
FLAME TUBE LENGTH
Flame tube length must be selected based on the specifications supplied by boiler manufacturer and, in any case, it
must be greater than the thickness of the boiler door included its insulation.
In case of boilers with flame inversion or front flue combustion chambers, it is necessary to insulate the area between
the flame tube and front door with refractory material. This protection material must not impede flame tube extraction.
MODEL TL **
GAS P350/MCE mm 515
GAS P450/MCE mm 520
GAS P550/MCE mm 520
** For different flame lengths, please contact our Technical-Sales Department.
GAS P350/MCE - GAS P450/MCE - GAS P550/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073027_A_en
MODULATING
PRODUCT SPECIFICATION
SHORT DESCRIPTION
Burners for gas two stages progressive (hi-low flame) or modulating (PID fully modulating) if equipped with addition
of optional modulation kit and probe.
DETAILED SPECIFICATION
Burner for gas two stages progressive (hi-low flame) or modulating (PID fully modulating) if equipped with addition of
optional modulation kit and probe; composed by:
• Fan at high pressurisation;
• Combustion head with adjustment at high performance and elevated flame stability equipped with steel blast tube and steel
flame disc;
• Flange and insulating gasket for fixing at boiler;
• Three-phase power supply;
• Safety air pressure switch to stop the burner in lock-out in case of failed or anomalous fan operation;
• Gas train with safety valve class A, adjustment valve class A and valve proving system;
• Ionisation probe for flame detection for natural gas versions;
• UV probe for flame…
