Datasheet Content
DUAL FUEL GAS/LIGHT-OIL BURNERS TWO STAGES PROGRESSIVE SK073568_C_en
OR MODULATING WITH ELECTRONIC CONTROL BOX
K X6/M-EL EVO - K X7/M-EL
Dual fuel burners gas/light oil with electronic control box. 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).
Composed by: die-cast aluminum body, 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 or biogas.
Gas train complete of: working valve class A, safety valve class A, gas valve proving pressure switch, minimum
gaspressure switch, filter.
Supplied with: nozzle, flange and gasket for installation on boiler, flexible hoses, line filter.
The servomotors are indipendent and managed directly from the electronic control box of the burner: one servomotor
for the gas modulator, one servomotor for the air shutter and one servomotor fo the light-oil modulator.
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 / fuel ratio)
With the addition of optional accessories (PID electronic regulator and probe) thanks to the most advanced systems
for automatic modulation in mechanical or electronic version, the burner constantly ensures the proper thermal load.
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), Touchscreen HMI panel.
Fig. K X7/M-EL
K X6/M-EL EVO - K X7/M-EL
DUAL FUEL GAS/LIGHT-OIL BURNERS TWO STAGES PROGRESSIVE SK073568_C_en
OR MODULATING WITH ELECTRONIC CONTROL BOX
CONTROL BOX LAMTEC BT3
Fig. Control box Lamtec BT3
K X6/M-EL EVO - K X7/M-EL
DUAL FUEL GAS/LIGHT-OIL BURNERS TWO STAGES PROGRESSIVE SK073568_C_en
OR MODULATING WITH ELECTRONIC CONTROL BOX
TECHNICAL DATA K X6/M-EL EVO - K X7/M-EL
MODEL K X6/M-EL EVO K X7/M-EL
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [Mcal/h] 306/561-1118 367/765-1548
Thermal power min. 1°st. / min. 2°st. - max. 2°st. * [kW] 355/652-1300 427/890-1800
Gas flow G20 (NATURAL GAS) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 35.8/65.6-130.8 43/89.5-181
Gas flow G31 (L.P.G.) min. 1°st. / min. 2°st. - max. 2°st. * [Nm³/h] 13.8/25.2-50.3 16.5/34.5-69.7
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 stage progressive or modulating
Environmental conditions operation / storage: -15...+40°C / -20...+70°C, rel. humidity max. 80%
Max. temperature combustion air [°C] 60 60
Minimum pressure gas train D1"1/2 NATURAL GAS/L.P.G. ** [mbar] 46.2/21.5 81.8/38.4
Minimum pressure gas train D2" FS50 NATURAL GAS/L.P.G. ** [mbar] 39.8/19 69.6/33.6
Minimum pressure gas train DN65 FS65 NATURAL GAS/L.P.G. ** [mbar] 26.6/14 44.2/23.8
Minimum pressure gas train DN80 FS80 NATURAL GAS/L.P.G. ** [mbar] 21.9/12.1 35.4/20.3
Maximum pressure at the entry of valves (Pe. max) (D1"1/2 - D2") [mbar] 360 360
Maximum pressure at the entry of valves (Pe. max) (DN65 - DN80) [mbar] 500 500
LIGHT-OIL flow min. 1°st. / min. 2°st. - max. 2°st. * [kg/h] 30/55-110 36/75-152
Fuel: light-oil 1.5°E at 20°C = 6.2 cSt = 35sec Redwood N°1
Nominal electric power [kW] 3.5 5.25
Fan motor [kW] 2.2 4
Pump motor [W] 750 750
Nominal absorption powers [A] 6.8 9.5
Nominal absorption auxiliary [A] 0.55 0.55
Power supply: 3~400V, 1N~230V - 50Hz
Electric protection degree: IP40 IP40
Noisiness *** min. - max. [dB(A)] 82-83 84.3-86.6
* 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)]).
K X6/M-EL EVO - K X7/M-EL
DUAL FUEL GAS/LIGHT-OIL BURNERS TWO STAGES PROGRESSIVE SK073568_C_en
OR MODULATING WITH ELECTRONIC CONTROL BOX
OPERATING RANGE DIAGRAM
16
K X6/M-EL EVO
14
12
10
8
6
4
2
0
200 400 600 800 1000 1200 1400
Fig. X = Thermal power [kW] Y = Pressure in combustion chamber [mbar]
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, combustion chamber dimensions must be in accordance with current regulation. In case of non-
compliance, contact the manufacturer.
16
K X7/M-EL
14
12
10
8
6
4
2
0
200 400 600 800 1000 1200 1400 1600 1800 2000
Fig. X = Thermal power [kW] Y = pressure in combustion chamber [mbar]
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, combustion chamber dimensions must be in accordance with current regulation. In case of non-
compliance, contact the manufacturer.
K X6/M-EL EVO - K X7/M-EL
DUAL FUEL GAS/LIGHT-OIL BURNERS TWO STAGES PROGRESSIVE SK073568_C_en
OR MODULATING WITH ELECTRONIC CONTROL BOX
DIMENSIONS [MM]
40 183 A
Rd A
H
D
R1
G
20
B C TC - TL E
R2 R4
R3 F1 - F2
Fig. Dimensions
MODEL A B C D E F1 F2 G H TC* TL** R1 R2 R3 R4 RD Gas
train
weight
K X6/M-EL EVO - D1"1/2 320 550 603 209 148 1040 1630 510 210 280 400 228 660 835 496 Rp 1"1/2 22 kg
K X6/M-EL EVO - D2" 320 550 603 209 148 1040 1630 510 210 280 400 228 660 835 496 Rp 2" 22 kg
K X6/M-EL EVO - DN65 320 550 603 209 148 1040 1630 510 210 280 400 228 660 835 541 DN65 27 kg
K X6/M-EL EVO - DN80 320 550 603 209 148 1040 1630 510 210 280 400 228 700 890 578 DN80 37 kg
K X7/M-EL - D1"1/2 320 550 603 209 148 1040 1630 510 210 280 400 228 660 835 496 Rp 1"1/2 22 kg
K X7/M-EL - D2" 320 550 603 209 148 1040 1630 510 210 280 400 228 660 835 496 Rp 2" 22 kg
K X7/M-EL - DN65 320 550 603 209 148 1040 1630 510 210 280 400 228 660 835 541 DN65 27 kg
K X7/M-EL - DN80 320 550 603 209 148 1040 1630 510 210 280 400 228 700 890 578 DN80 37 kg
* With spacers
**…
