Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
6 Operation
83054802 1/2018-07 La
106-228
O
2
-Offset (
O2ModOffset
)
Increase of the O
2
content in percentage points, if O
2
trim is suspended via para-
meter
LoadCtrlSuspend
when the load is changed.
O2ModOffset
en-
sures that the O
2
min value is maintained in case of
LoadCtrlSuspend
.
If the threshold value
LoadCtrlSuspend
is exceeded when the load is
changed, the air influencing actuators operate and increase the O
2
content by the
value set, then the fuel actuator operates.
In conjunction with CO trim the W-FM increases the O
2
setpoint by O
2
offset if the
CO limit value has been exceeded.
Pre-control (
Type Air Change
)
Parameter Type Air Change influences the calculation procedure of the pre-control
[ch. 6.10].
Parameters
Function
like theory
Recommended for fuel gas.
Temperature and air pressure fluctuations influence the
fuel throughput.
like P air
Recommended for fuel oil.
Temperature and air pressure fluctuations do not influ-
ence the fuel throughput.
LambdaFact1
Not recommended.
Only for burners with fuel/air ratio Lambda factor 1.
Summary of Contents for W-FM 100
Page 227: ...83054802 1 2018 07 La ...
