Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
6 Operation
83054802 1/2018-07 La
144-228
6.15.1.2 Separate fan
Through a pipeline, the fan draws the flue gas from the flue gas pipe. A flue gas
damper (FGR damper)
1
in the pipeline meters the recirculated flue gas quantity.
The FGR damper is driven load dependent, in compound by the actuator (Aux3).
The recirculated flue gas quantity dependents on the position of the FGR
damper
1
, the negative pressure in the FGR suction chamber
2
and the flue gas
pressure at the extraction point
5
. With sufficient negative pressure the FGR
damper operates up to an opening angle of approx. 60°, above this the recirculated
flue gas quantity increases marginally. If the recirculated flue gas quantity is insuffi-
cient to reach the NO
X
content, the negative pressure in the FGR suction chamber
has to be increased, to do this either:
close air regulator (Aux2)
3
in front of the FGR suction chamber further,
increase speed
4
.
The air quantity required for combustion must not be changed, to achieve this al-
ternately change the actuator position and speed.
M
M
M
M
M
M
M
+
M
M
W-FM 200
1
2
4
5
3
Summary of Contents for W-FM 100
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