General information
11
BURNERS
The burners that can be installed on the
BNX
boilers must be CE marked according to European Directives:
–
Gas Directive 2009/142/EC
–
Electromagnetic Compatibility Directive 2014/30/EU
–
Low Voltage Directive 2014/35/EU
–
Machinery Directive 2006/42/EC (for liquid fuel burners)
They must also be able to operate on boilers with flame inversion combustion chamber.
Since the optimal operation of the steam generator depends on the correct choice of burner and its adjustment, below are some
points to consider:
–
The working range of the burner must include the operating point of the steam generator (flow rate-back pressure in
combustion chamber considering also the possible resistance/draught of the smoke duct
–
the length of the combustion head must be adequate to the penetration into the combustion chamber provided by ICI and
shown in the table
–
the length and shape of the flame must be suitable to the flame inversion combustion chambers. The burner manufacturers
have this information as they are required by certification.
Øb
P6
Description
u.m.
BNX
100
150
350
500
700
850
1000
1400
1700
2000
2650
3000
Øb
mm
130
160
180
225
225
280
280
280
280
320
360
360
P6
mm
240-
290
280-
330
280-
330
310-
360
310-
360
350-
400
350-
400
370-
420
370-
420
370-
420
420-
470
420-
470
m
IMPORTANT
The gap between the mouthpiece and door must be filled with flame-resistant thermoceramic material.
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
