Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
6 Operation
83054802 1/2018-07 La
110-228
6.10.7 O2 sensor
Param & Display O2 module Configuration O2 sensor
Parameter O2 sensor activates the O2 sensor connected.
Setting Function
no sensor No O2 sensor fitted, O2 trim not possible.
QGO20 QGO 20 fitted, for:
Gas burner
Oil burner (fuel oil EL)
Dual fuel burner (fuel oil EL)
QGO21 QGO 21 fitted, for:
Heavy oil burner (fuel oil MS and S)
Dual fuel burner (fuel oil MS and S)
The O2 sensorQGO21 has an increased reaction and settling time. Due to this
behaviour, the release of O2 trim at burner start has to be delayed for longer. In
conjunction with QGO21, the factor has to be set to minimum 40 in parameter
NumberTauSuspend , see [ch.6.10.5].
6.10.8 Service interval for O2 sensor
Param & Display O2 module Configuration O2SensServTim
O2SensServTimRes
Setting the service interval
Parameter O2SensServTim stipulates the service interval in days for the the O2
sensor. The interval is deactivated if the setting is "0".
The interval is compared with the total operating hours counter. If the interval has
elapsed, a message appears in the ABE and O2 trim reacts according to the oper-
ating mode set [ch.6.10.1].
O2 trim is deactivated in operating mode conAutoDeac, the O2 monitor re-
mains activated.
Lockout occurs in operating mode O2 Alarm or O2 controller.
Reset service interval
Parameter O2SensServTimRes resets the service interval.
If O2 trim is set to auto deact, the operating mode has to be reset to co-
nAutoDeac.
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