618 – LOLO Current Heat Value of Fuel
Yellow alarm.
Associated parameter 2.1210.007
Cause
Corrective action
Fuel calorific value has undershot
the second limit value
u
Check gas quality if feasible.
619 – HI Current Heat Value of Fuel
Yellow alarm.
Associated parameter 2.1210.008
Cause
Corrective action
Fuel calorific value has exceeded
the first limit value
u
Check gas quality if feasible.
620 – HIHI Current Heat Value of Fuel
Yellow alarm.
Associated parameter 2.1210.009
Cause
Corrective action
Fuel calorific value has undershot
the second limit value
u
Check gas quality if feasible.
621 – LO NOx Value
Yellow alarm.
Associated parameter 2.3050.024
Cause
Corrective action
NOx emissions have undershot
the first limit value
1. Check gas quality if feasible.
2. Check gas pressure.
3. Check NOx sensor.
4. Check emissions.
622 – LOLO NOx Value
Yellow alarm.
Associated parameter 2.3050.025
Cause
Corrective action
NOx emissions have undershot
the second limit value
1. Check gas quality if feasible.
2. Check gas pressure.
3. Check NOx sensor.
4. Check emissions.
118 | Troubleshooting | MS150098/02E 2016-11
TIM-ID: 0000027858 - 001
