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FLAME SAFTEY CONTROLS & EQUIPMENT

To avoid situations were explosive mixtures of fuel and combustion air can occur without proper and correct ignition, modern burners are fitted with flame sensing and start-up sequencing equipment.

The main feature of this equipment is to prove the correct operation of the combustion air supply fan, the start and main gas solenoid valves and the ignition equipment in a pre-set order.

The timings pre-set into the equipment are designed to pre-purge and post-purge combustion chambers so combustible mixtures cannot occur before the controlled ignition period.

The flame sensing element of the equipment ensures that should a flame be extinguished by fault, then the electrical supply to the fuel solenoid valves will be cut off.

Various types of flame sensing methods have been used from heat sensing and thermoelectric devices to electronic units.
Many gas burners utilise the flames ability to be used as an electrical rectifier as the system of detection.

When applying flame safety equipment, care should be taken that the equipment installed is suitable for use with the fuel supply and electrical supply used and complies with local statutory requirements.

If in doubt consult Comtherm technical staff.

For more information regarding the design, structure and application of Flame Safety equipment consult the Technical (controls) section of this web-site.

CONTACT COMTHERM BY E-MAIL REQUEST A SPARES QUOTATION

MANUFACTURERS

» Econex
» Honeywell
» Landis & Gyr
» Satronic
» Siemens



» Flame Electrodes











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Econex Flame Safety Equipment

Econex Flame Safety Control Box prepurge Operating Voltage Operating Frequency Protection Weight Operating Temp.
EFC1 TRC M2 2 secs 230 50/60 IP40 1000g 0 to +60
EFC2B TRC M10 10 secs 230 50/60 IP40 1000g 0 to +60
EFC2B TRC M20 20 secs 230 50/60 IP40 1000g 0 to +60
EFC2A TRC M10 10 secs 230 50/60 IP40 1000g 0 to +60
EFC2A TRC M20 20 secs 230 50/60 IP40 1000g 0 to +60


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Honeywell (Satronic) Flame Safety Equipment

Honeywell Flame Safety Control Box Operating Voltage Operating Frequency Protection Weight Operating Temp.
TMG740-3 43-35 control 230 50/60 IP44 10000g -20 to +60
TMG740-3 43-35 control 110 50/60 IP44 1000g -20 to +60
TMG S720G-70205U base IP44 100g -20 to +60
DMG970 - 0350003U control 230 50/60 IP40 190g -20 to +60
DMG970 - 0350003U control 110 50/60 IP40 190g -20 to +60
UVZ780 (red) UV sensor 1813U 110 50/60 IP40 -20 to +60
UVZ780 (blue) UV sensor 18812U 230 50/60 IP40 -20 to +60
UVZ/FZE 18807 mounting flange IP40 -20 to +60
RM7850A 1001/U control 110 50/60 IP40 1000g -40 to +60
RM7850A 1072/U control 230 50/60 IP40 1000g -40 to +60
RM7850A 1027 control IP40 1000g -40 to +60
RM7840L 1018/U control 120 60 IP40 1000g -40 to +60
RM7840M 1017/U control 120 60 IP40 1000g -40 to +60
S7820A1007/U remote reset IP40 1000g -40 to +60
S7820A1001/U display unit IP40 1000g -40 to +60
Q7800A1005 sub base IP40 1000g -40 to +60
R7847A1025/U FR amplifier 110/230 50/60 IP40 71g -40 to +60
R7849A1015/U UV amplifier 110/230 50/60 IP40 71g -40 to +60
R7861A1034/U s.c.u.v. amplifier 110/230 50/60 IP40 71gg -40 to +60
ST7800A 1047/U p. card IP40 1000g -40 to +60
ST7800A 1054/U p. card IP40 1000g -40 to +60
C7027A1056/U UV sensor IP40 1000g -40 to +60
C7061A1012/U s.c. sensor IP40 1000g -40 to +60
C7035A1064 UV sensor IP40 1000g -40 to +60
C7061A1020/U s.c. sensor IP40 1000g -40 to +60


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Siemens (Landis & Gyr) Flame Safety Equipment

Siemens Flame Safety Control Box Operating Voltage Operating Frequency Protection Weight Operating Temp.
LFL1.335. A27 230 50/60 IP40 1000g -50 to +70
LFL1.335. A17 110 50/60 IP40 1000g -50 to +70
LFL1.322. A27 230 50/60 IP40 1000g -50 to +70
LFL1.322. A17 110 50/60 IP40 1000g -50 to +70
LFL1.622. A27 230 50/60 IP40 1000g -50 to +70
LFL1.622. A17 110 50/60 IP40 1000g -50 to +70
LFL1.635. A27 230 50/60 IP40 1000g -50 to +70
LFL1.635. A17 110 50/60 IP40 1000g -50 to +70
LGK16.335. A27 230 50/60 IP40 1000g -20 to +60
LGK16.335. A17 110 50/60 IP40 1000g -20 to +60
LGB21.350. A27 230 50/60 IP40 160g -20 to +60
LGB21.350. A17 110 50/60 IP40 160g -20 to +60
LMG21.330. B27 230 50/60 IP40 160g -20 to +60
LFE10 110 50/60 IP40 395g -20 to +60
LFE10 230 50/60 IP40 395g -20 to +60
LFE50 110 50/60 IP40 1500g -20 to +60
LFE50 230 50/60 IP40 1500g -20 to +60
LEC1/8866 110 50/60 IP40 2000g -20 to +60
LEC1/8892 230 50/60 IP40 2000g -20 to +60
LMV37.400A2 230 50/60 IP40 -20 to +60
LMV37.420A1 110 50/60 IP40 -20 to +60
Siemens Flame Sensors Operating Voltage Operating Frequency Protection Weight Operating Temp.
QRA2 U.V. N/A 50/60 IP40 60g -20 to +60
QRA10C U.V. N/A 50/60 IP54 740g -20 to +60
QRA10M C U.V. N/A 50/60 IP54 740g -20 to +60
QRA53. E27 230 50/60 IP54 900g -20 to +60
QRA53. E17 110 50/60 IP54 900g -20 to +60
QRA55. C27 230 50/60 IP54 900g -20 to +60
QRA55. C17 110 50/60 IP54 900g -20 to +60
QRA50M. 110 50/60 IP54 900g -20 to +60
Siemens Accessories      
AGM410490550 Connection base for LFL    
AGM17 Connection base for LGK    
AGG41041713EC Connection base for LEC1    
AGK11 Connection base for LGB21    
AGK65 Gland plate for LGB21    
AGM19 Plug & 2 metre lead for QRA53 & 55    
AGG02 Standard Quartz lens    
AGG03 Magnifying Quartz lens    
AGG06 Quartz lens adaptor nut    
AGG16. C Mounting adaptor for QRA53 & 55    
AGR 450211310 Replacement bulb for QRA2 & 10,.    
AGR 450240650 Replacement bulb for QRA53 & 55.    
AGQ1.1A27 UV amplifier for LGB    


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Flame Sensing electrodes (Flame rectification)

Make Type Dia. Thread Length  
PH90 5mm 1/4" 90mm
PH150 5mm 1/4" 150mm
PH200 5mm 1/4" 200mm
14/100 3mm 160mm
14/200 3mm 1500mm
14/300 3mm 300mm
9.5/150 3mm 160mm
6.35/75 2mm 85mm
6.35/150 2mm 160mm

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Comtherm Limited accepts no responsibility or liability for the accuracy of information provided on this web-page. technical data and dimensions should be confirmed with the relevant Comtherm Limited Sales or Technical office.