MAINTENANCE
071011_2_A
GAS XP60/2CE EVO
20
*: Only for models with UV flame detector.
**: Only for models with maximum gas pressure switch PGmax.
The burner starts, the flame ignites
then it goes into lock-out position.
1) The flame it isn't detect.
1) Check the flame intensity.
2) Dirty flame sensor. *
2) Clean the flame sensor. *
3) Erroneous ionisation probe con-
nections.
3) Check if there is electrical continuity
between the probe and its terminal.
Check the condition of the ionisation pro-
be cable.
Check if the phase and neutral conductor
are connected propely.
Check if the electrical supply is phase -
phase.
4) Maximum gas pressure switch operates.
**
4) Check the gas pressure. **
Check the maximum gas pressure switch
adjustment. **
Replace or adjust the maximum gas pres-
sure switch. **
The burner starts, the flame ignites, it
goes into lock-out position and then the
burner repeats the prepurge phase.
1) Insufficient gas pressure.
1) Increase pressure at governor.
Flame is completely dark yellow and
not defined.
1) Combustion air is to low.
1) Check that the air damper opens nor-
mally.
Check if the fan is dirty.
2) Too much gas.
2) Check the calibrations of the burner.
3) Clogged boiler pipe or chimney.
3) Clean them.
During operation, the burner
goes into lock-out position.
1) Inadequate flame signal.
1) Check the flame intensity.
Check the burner calibration.
2) Defective flame sensor.
2) Replace the flame sensor.
3) Intervention of maximum gas pressure
switch. **
3) Replace of adjust. **
4) Air pressure switch in fault position.
4) Check the air pressure to the pressure
switch.
Check the fan motor.
5) Defective air pressure switch.
5) Replace the air pressure switch.
6) Fan is dirty.
6) Clean.
7) Dirty disk or mouth.
7) Clean.
The burner does not go into 2nd stage.
1) The 2nd stage control device
does not switches in 2nd stage position.
1) Replace or adjust.
2) The servomotor does not close the
contact of the 2nd stage consent.
2) Check calibration of the servomotor or
replace it.
3) Defective control box.
3) Replace the control box.
TYPE OF IRREGULARITY
PROBABLE CAUSE
RIMEDY
GB
Содержание GAS XP60/2CE EVO
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