Table des Matières
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Reading the flame
stabilisation time
Lit "green"
Flame control
with detector
electrode
8...17 x
Not used
••••••••
..........
••••••••••
•••••••
18 x
Internal error in flame control unit
••••••••••
••••••••
19 x
Output contacts fault
••••••••••
• Incorrect electrical connections
•••••••••
• Incorrect voltage at output terminals
20 x
Internal error in flame control unit
••••••••••
••••••••••
In the "flame control unit working" position the green indicator light is on and
steady. Flame stabilisation time can be checked via the blink sequence:
Lit phase
The number of blinks represents multiples of 400 ms
Diagnostics table
Number of blinks
1 x
•
2 x
••
..........
12 x
••••••••••
••
• The flame stabilisation time is the period that elapses between opening of
valve "BV1" and the moment in which the flame is detected for the first time.
• Flame stabilisation time is memorised for an ignition sequence and then
re-calculated at the next start-up.
Flame control is based on the conductivity and the rectifying effect of the gas
flame.
The flame signal amplifier responds to the continuous component of the
generated current only.
⇒ A short circuit between the detection electrode and the burner earth will
produce a no-flame shutdown.
Press lockout button
for > 3 s.
Refer to
"Diagnostics table"
Flame stabilisation time
< 400 m secondes
< 800 m secondes
< 4,8 secondes
33
Approx.
Refer to
3 s.
"Diagnostics table"
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Table des Matières
