Datasheet Content
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073030_B_en
MODULATING
GAS BURNERS TWO STAGES PROGRESSIVE OR MODULATING
GAS X2/MCE - GAS X3/MCE - GAS X4/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, combustion head with adjustment at high efficiency and high flame
stability and protection cover with noise reduction plate.
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 one-block valve A class (1st stage slow opening + safety),
minimum gas pressure switch and filter stabilizer.
Complete of flange and gasket for installation on generator.
Fig. 1 GAS X2/MCE
Fig. 2 GAS X3/MCE
Fig. 3 GAS X4/MCE
GAS X2/MCE - GAS X3/MCE - GAS X4/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073030_B_en
MODULATING
TECHNICAL DATA GAS X2/MCE - GAS X3/MCE - GAS X4/MCE
MODEL GAS X2/MCE GAS X3/MCE GAS X4/MCE
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [Mcal/h] 15/35-80 30/60-150 40/100-200
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [kW] 17/41-93 35/70-174 46/116-232
Gas flow G20 (NATURAL GAS) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 1.7/4.1-9.4 3.5/7-17.4 4.6/11.6-23.2
Gas flow G31 (L.P.G.) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 0.7/1.6-3.6 1.3/2.7-6.5 1.8/4.5-9
Fuel: NATURAL GAS (second family) - L.P.G. (third family)
Fuel category: I2R,I2H,I2L,I2E,I2E+,I2Er,I2ELL, I2E(R)
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, umidità rel. max. 80%
Max. temperature combustion air [°C] 60 60 60
Minimum pressure gas train D3/4"-S NATURAL GAS/L.P.G. ** [mbar] 18/24 -/- -/-
Minimum pressure gas train D1"-S NATURAL GAS/L.P.G. ** [mbar] -/- 14/31 14/21
Minimum pressure gas train D1"1/4-S NATURAL GAS/L.P.G. ** [mbar] -/- 11/29.5 11/19
Minimum pressure gas train D1"1/2-S NATURAL GAS/L.P.G. ** [mbar] -/- 10/28 8/17
Maximum pressure at the entry of valves (Pe. max) [mbar] 360 360 360
Nominal electric power [W] 130 200 226
Fan motor [W] 75 110 200
Nominal current absorption [A] 0.6 0.9 1.1
Power supply: 1N~230V - 50Hz
Electric protection degree: IP 40 IP 40 IP 40
Noisiness *** min. - max. [dBA] 61-62 66-71 66-71
Burner weight [kg] 13 18 20
* 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
- method of control Class 3 - The tollerance of the measured pressure can be taken equal to ± 1 [dB(A)]).
OPERATING RANGE DIAGRAM
Fig. 4 X = Thermal power Y = Pression in the combustion chamber
The firing rates has been obtained based on test boilers in accordance with EN267 standards and are indicative of matching the burner to the boiler.
For the correct operation of the burner, combustion chamber dimensions must be in accordance with current regulation. In case of non-compliance,
contact the manufacturer.
GAS X2/MCE - GAS X3/MCE - GAS X4/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073030_B_en
MODULATING
DIMENSIONS [MM]
Fig. 5 Dimensions GAS X2/MCE - GAS X3/MCE - GAS X4/MCE
MODEL A B C D E F G H Q S U V R1 R2 R3 R4 RD Gas
train
weight
GAS X2/MCE - D3/4"-S 15 162 200 90 43 305 215 65 170 211 150 150 178 220 262 346 Rp 3/4 2 kg
GAS X3/MCE - D1"-S 20 185 224 107 56 344 268 70 193 248 202 162 212 280 338 300 Rp 1 5,6 kg
GAS X3/MCE - D1"1/4-S 20 185 224 107 56 344 268 70 193 248 202 162 212 280 338 300 Rp 1 1/4 5,6 kg
GAS X3/MCE - D1"1/2-S 20 185 224 107 56 344 292 70 193 248 202 162 212 280 338 443 Rp 1 1/2 8 kg
GAS X4/MCE - D1"-S 20 185 224 125 80 371 274 70 193 248 206 200 218 280 338 323 Rp 1 5,6 kg
GAS X4/MCE - D1"1/4-S 20 185 224 125 80 371 274 70 193 248 206 200 218 280 338 323 Rp 1 1/4 5,6 kg
GAS X4/MCE - D1"1/2-S 20 185 224 125 80 371 298 70 193 248 206 200 218 280 338 467 Rp 1 1/2 8 kg
**TC-TL: see "flame tube length"
BOILER PLATE
* Suggested dimension of connection between burner
and generator.
Fig. 6 Boiler plate
MODEL L min L* L max M N min N* N max
GAS X2/MCE mm 100 110 130 M8 130 150 170
GAS X3/MCE mm 120 130 140 M8 150 170 170
GAS X4/MCE mm 130 140 160 M10 170 205 226
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 TC TL **
GAS X2/MCE mm 90 150
GAS X3/MCE mm 130 250
GAS X4/MCE mm 160 280
** For different flame lengths, please contact our Technical-Sales Department.
GAS X2/MCE - GAS X3/MCE - GAS X4/MCE
GAS BURNERS TWO STAGES PROGRESSIVE OR
SK073030_B_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 inox steel blast tube and
steel flame disc;
• Protection cover with noise reduction plate;
• Flange and insulating gasket for fixing at boiler;
• Single phase power supply;
• Safety air pressure switch to stop the burner in lock-out in case of failed or anomalous fan operation;
• Gas train completely assembled and tested; complete of one-block valve A class (1st stage slow opening + safety), minimum gas
pressure switch and filter stabilizer;
• Ionisation probe for flame detection;
• IP 40 electric protection level;
• Spherical gas valve servo-controlled; progressive start and free way passage with total opening;
• Servomotor for air shutter and for the spherical gas valve;
• Set up for the additional specific kit that transforms burner operation as modulating i.e. the modulating kit allows to supply any
power between the minimun and the maximum value based on instantaneous loading request.
CONFORMING TO:
• CE rules;
• 2014/30/UE Directive E.M.C.;
• 2014/35/UE Directive L.V.;
• 2006/42/CE - 2006/42/EG - 2006/42/EC Directive M.D.;
• GAS 2016/426/UE Regulation;
• Reference rules: EN676 (gas) – EN 746-2 (industrial thermoprocessing equipment).
STANDARD EQUIPMENT
• Isomart gasket;
• Flange with insulating gasket;
• Burner nameplate;
• Warranty;
• Instruction handbook for installation, use and maintenance.
OPTIONAL
• Power…
