● Adjust the final position of the band according to the capacity demand.
● Note the quantity of gas flow in relation to function of the compound regulator.
● Check the combustion values with flue gas analysis and, if necessary, adjust the
burner by changing the air damper and the gas pressure.
● After the conversion, supplement the burner’s type plate with a label or other
marking indicating the type of gas fired in the burner.
3.9 Installing FGR duct system
FGR duct system
FGR Installation_monoblock ver. 3
Pos.
Item
Pos.
Item
1
Control damper
5
Temperature sensor
2
Combustion air fan
6
FGR duct
3
Combustion air throttle valve
7
Condensate drain valve
4
Combustion air
In monoblock burner constructions, pos. 2 and 3 are integrated parts of the burner.
Burner
Minimum diameter
of FGR pipe
350 M - 450 M
6"
Designing FGR piping
When designing the piping, consider the special circumstances of FGR operation.
28 (114)
M4248 2316EN
