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Idiomas disponibles
4.6.2 LOCKOUT DUE TO FIRING FAILURE
P
TL
t
2
t
1
M
M
I
V
SO
LED
4.6.3
LOCKOUT DUE TO DETECTION OF FLAME
OR FLAME SIMULATION DURING PRE-
PURGING
OPERATING TIMES
t1
t1I
t2
max
max
-
1
30
3
Time expressed in seconds
LOCKOUT TYPES AND TRIGGERING TIMES IN CASE OF BURNER MALFUNCTION
DESCRIPTION OF THE FAULT TYPES
Flame detected when burner is started or switched off
Flame detected during pre-purging
Flame detected during post-purging
No ignition at the end of the safety time "ts"
Flame goes out during operation
Incorrect fan motor speed (rpm)
3350
t
3
t
t
t
3b
4i
3a
t
s
Green
Lockout
Green
Red
t2l
t3
t3a
max
-
-
30
40
8
th
Lockout at 4
restart
.
Red
D7253
KEY TO LAY-OUT
I
LED – Reset button LED indicating operating
M
SO – Ionisation probe
TL – Limit thermostat
V
D7254
t3b
t3l
-
max
5
1
LOCKOUT
After max. 30 seconds (after TL)
Within 1 second
After max. 30 seconds
After a maximum of 3 repetitions within one second
After a maximum of 3 repetitions within one second
Within "t3a" and/or "t3b"
13 GB
Red (LED lights)
Green (LED lights)
Purging motor at max. rpm
Purging motor at START rpm
(t3b)
– Ignition transformer
status
– Fan motor
– Gas valve
Red (LED lights)
Green (LED lights)
Purging motor at max. rpm
ts
t4i
t4l
-
-
max
3
3
1
t6
t6l
max
max
360
30
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