QGO SensorTemp QCO sensor
temperature in °F
QGO HeatingLoad Control value of
QGO... heating,
0,1%
QGO Resistance
Internal resistance
of QGO's Nernst
cell
Self test is made at 23-intervals. Test requires constant O
2
level, for e.g. after pre-purge
or on steady load. If constant O
2
level is not reached within 24 hours, burner control
locks down operation load to reach constant O
2
level for next test. If burner is in stand
by mode, test is made during next burner start-up.
Flue gases containing aggressive acids may considerably shorten the
useful life of the oxygen sensor.
O
2
module can be connected with burner combustion air and flue gas temperature
sensors. If sensors are connected, warning is displayed when flue gas temperature is
too high, and combustion efficiency will be calculated and displayed.
Check that the oxygen value, sensor temperature, heating efficiency,
and resistance values are displayed. If temperature sensors have been
connected and activated, the values should be displayed.
4.13 Manual start-up and program stop in pre-purge position
Program stop
With the burner control
ProgramStop
parameter, the burner start-up can be stopped in
selected program phase and servomotor position can be adjusted.
Pre-purge position
phases 24–34
Ignition position
phase 36
Transition 1
phase 44
Transition 2
phase 52
Post-purge
phases 72–78
Active program stop in phase 24.
Params & Display
Ratio Control
Program Stop
deactivated
24 PrePurgP
32 PreP FGR
36 IgnitPos
44 Interv 1
M4248 2316EN
53 (114)
