Datasheet Content
DUAL FUEL GAS/LIGHT-OIL BURNERS WITH
SK073551_A_en
ELECTRONIC CONTROL BOX
K 4/M/2 EL EVO2
Dual fuel gas/light-oil burners with electronic control box.
Gas fuel operation: two stages progressive or modulating operation (if equipped with addition of optional
modulation kit PID and probe; to guarantee an ideal proportionality of the power supplied to the thermal load).
Light-oil fuel operation: two stages.
Composed by: aluminium frame, 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 complete with: work valve with adjustment, safety valve, minimum gas pressure switch and filter.
Complete of: flange and gasket for installation on generator, nozzles, flexible pipes and line filter.
The servomotors are indipendent and managed directly from the electronic control box of the burner: one
servomotor for the gas modulator and one servomotor for the air shutter.
The burners are equipped with a display that allows to:
- adjust the operating parameters of the burner
- visualize the flame intensity
- adjust the operating curve of the burner (air / gas ratio)
With the addition of optional accessories (probes) thanks to the most advanced systems for automatic modulation in
mechanical or electronic version, the burner constantly ensures the proper gas / air ratio. The maximum efficiency of
the returns in each combustion point derived from the punctual adaptation of the thermal load to the heat
requirements of the burner at any instant of operation.
In the version with the electronic cam the fuel / combustion air curve, more extended, is fully exploited,
guaranteeing excellent performance in terms of accuracy and speed, even during the calibration phase.
A microprocessor monitors the different stages of the process and allows the correct repetition of the sequences of
operation.
Optional accessories: PID power modulator kit, probe, PC interface, VSD, O2 control, O2 + CO control, field bus
(profibus, modbus, profinet).
Fig. K 4/M/2 EL EVO2
K 4/M/2-EL EVO2
DUAL FUEL GAS/LIGHT-OIL BURNERS WITH
SK073551_A_en
ELECTRONIC CONTROL BOX
CONTROL BOX LAMTEC BT3
Fig. Control box Lamtec BT3
K 4/M/2-EL EVO2
DUAL FUEL GAS/LIGHT-OIL BURNERS WITH
SK073551_A_en
ELECTRONIC CONTROL BOX
TECHNICAL DATA
MODEL K 4/M/2-EL EVO2
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [Mcal/h] 100/200-450
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [kW] 116/232-523
Gas flow G20 (NATURAL GAS) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 11.7/23.4-52.6
Gas flow G31 (L.P.G.) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 4.5/9-20.3
LIGHT-OIL flow min. 1°st. / min. 2°st. - max. 2°st. * [kg/h] 10/20-45
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) modulating gas - two stage light-oil
Environmental conditions operation / storage: -15...+40°C / -20...+70°C, rel. humidity max. 80%
Max. temperature combustion air [°C] 60
Minimum pressure gas train D1" - S NATURAL GAS/LPG ** [mbar] 95/60
Minimum pressure gas train D1"1/4 - S NATURAL GAS/LPG ** [mbar] 54.5/44
Minimum pressure gas train D1"1/2 -S NATURAL GAS/LPG ** [mbar] 28/33
Minimum pressure gas train D2" -S NATURAL GAS/LPG ** [mbar] 26.5/33
Maximum pressure at the entry of valves (Pe. max) [mbar] 360
Nominal electric power [W] 800
Fan motor [W] 550
Pump motor [W] 180
Nominal absorption auxiliary [A] 0.7
Power supply: 3~400V,1N~230V-50Hz
Electric protection degree: IP 40
Noisiness *** min. - max. [dB(A)] 73-76
* 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 -
Control method Class 3 - Tolerance on the measured sound pressure can be assumed equal to ± 1 [dB (A)]).
K 4/M/2-EL EVO2
DUAL FUEL GAS/LIGHT-OIL BURNERS WITH
SK073551_A_en
ELECTRONIC CONTROL BOX
OPERATING RANGE DIAGRAM
ŵďĂƌ ϵ͕ϱ
ϴ͕ϱ K 4/M/2-EL EVO2
ϳ͕ϱ
ϲ͕ϱ
ϱ͕ϱ
ϰ͕ϱ
ϯ͕ϱ
Ϯ͕ϱ
ϭ͕ϱ
Ϭ͕ϱ
ͲϬ͕ϱ
ϱϬ ϭϱϬ ϮϱϬ ϯϱϬ ϰϱϬ ϱϱϬ ϲϱϬ Ŭt
Fig. X = Thermal power Y = Pressure in combustion chamber
The firing rates has been obtained based on test boilers in accordance with EN676 standards and are indicative of matching the burner to the
boiler. For the correct operation of the burner bruciatore, combustion chamber dimensions must be in accordance with current regulation. In case
of non-compliance, contact the manufacturer.
K 4/M/2-EL EVO2
DUAL FUEL GAS/LIGHT-OIL BURNERS WITH
SK073551_A_en
ELECTRONIC CONTROL BOX
DIMENSIONS [MM]
L A
H
Rd
I
D
R1
G
B C TC - TL * E R4
R2 F
R3
Fig. Dimensions
MODEL A B C D E F G H I L R1 R2 R3 R4 RD Gas
train
weight
K 4/M/2-EL EVO2 25 290 525 150 100 750 450 155 200 207 240 415 492 360 Rp1 1/2 25 kg
* TC-TL: see chapter "FLAME TUBE LENGTH"
BOILER PLATE
** Suggested dimension of connection between burner
and generator.
Fig. Boiler plate
MODEL L min L max M N min N** N
max
K 4/M/2-EL EVO2 mm 205 226 M10 160 160 185
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 ***
K 4/M/2-EL EVO2 mm 250 350
*** For different flame lengths, please contact our Technical-Sales Department.
K 4/M/2-EL EVO2
DUAL FUEL GAS/LIGHT-OIL BURNERS WITH
SK073551_A_en
ELECTRONIC CONTROL BOX
PRODUCT SPECIFICATION
SHORT DESCRIPTION
Dual fuel gas/light-oil burners with electric control box.
DETAILED SPECIFICATION
Dual fuel gas/light-oil burners with electric control box, composed by:
• Light-oil fuel: two-stage operation;
• Gas fuel: two-stage progressive or modulating operation (PID fully modulating) if equipped with the additional
modulation kit and probe
• Servo-controlled gas ball valve; progressive opening and free passage with total opening;
• Servo motor for gas ball valve;
• Predisposition for the addition of a specific kit that allows the operation to be transformed into modulating, i.e. the possibility
of delivering any power value between minimum and maximum, depending on the instantaneous demand of the load;
• Aluminium frame;
• Fan at high pressurisation;
•…
