33
20171652
GB
E-display control
The air pressure switch test is carried out.
The burner moves to the pre-purging position, the air
servomotor opens the damper at 90°.
Factory pre-set pre-purging time starts.
Burner goes to ignition position.
The ignition step starts; spark lights up.
The gas valves open (the safety time count starts).
Verify if the flame is present through the special window and
if combustion parameters are correct.
If the control box locks out, the display shows the lockout
code.
Solve the problem, referring to paragraph
To unlock, refer to
After ignition, the burner goes to the minimum point.
Continue with the calibration of ignition point and modulation
curve.
S9989
S9990
S9968
S9991
Содержание 20171510
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