4.9.2
BLOCK DUE TO NON-IGNITION
Yellow
D7232
4.9.3
BLOCK DUE TO EXTRANEOUS LIGHT DURING
THE PRE-PURGING
Yellow
Block due to extraneous light during the preheating
Yellow
Yellow
3221
Green
Signal not required
Green
Red+Yellow
Block
Red
KEY TO LAY-OUT
F
I
K
LED – Signal of operation status from reset
MV – Fan motor
PH – Diesel oil heater
TL – Limit thermostat
Green+Yellow
V1 – Oil valve
Red
OPERATING TIMES
t1
t1I
t2
t2I
t2p
t3
t3I
The time is expressed in seconds
D7231
13 GB
– Flame detector
– Ignition transformer
– Enabling switch thermostat for start up
after preheating
button
Red
Green + Yellow slow blinking
Green + Yellow fast blinking
Yellow
Green
Green + Yellow medium blinking
Red + Yellow fast blinking
Yellow fast blinking
max
1
ts
max
30
t4i
-
3
t5i
max
30
t4I
max
600
t6
-
15
t6I
max
1
t7
-
5
-
8
-
3
max
1
max
360
max
30
-
120