3232
4
GB
OPERATION PROGRAMME
NORMAL OPERATION WITH PREHEATING
KEY TO LAY-OUT
F
√ Flame detector
I
√ Ignition transformer
K
√ Enabling switch thermostat for start up
after preheating
LED
√ Signal of operation status from reset
button
MV
√ Fan motor
PH
√ Diesel oil heater
TL
√ Limit thermostat
V1
√ Oil valve
t1
Waiting time of a control box input signal: reaction time,
the control box stands still for the time
t1
.
ts
Safety time:
if at the end of the
ts
time there is no flame, a block
follows.
t1I
Presence of extraneous light before the heat request: if
the presence of light during the
t1l
time, a block follows.
t4i
Transformer turn on time:
total turn on time
ts
+
t5i
.
t2
Wait time after a request for heat:
the control box stays still for the
t2
time.
t5i
Transformer post-turn on time:
additional turn on time after
ts
.
t2I
Presence of extraneous light during the oil pre-heating:
if the presence of light lasts the
t1l
time, a block follows.
t4I
Flame loss in operation:
maximum oil valve drop reaction time, after three
recycle attempts a block follows.
t2p
Maximum preheating time:
if the thermostat
K
does not make the switch within the
time
t2p
a block follows, the control box remains still for the
time
t2p
.
t6
Post-purging time:
additional purging time on the opening of the heat limit
thermostat (
TL
)
t3
Pre-purging time:
start of the fan motor.
t6I
Presence of an extraneous light during post-purging: if
the presence of light lasts the
t6l
time, a block follows.
t3I
Presence of an extraneous light during pre-purging:
immediate block.
t7
Long pre-purging time:
pre-purging time more than
t3
.
D7230
Signal not required
Yellow
Green
Yellow
Green
Yellow
MV = still
Flame loss during operation (Recycle max 3 attempts)
Yellow
Green
Yellow
Yellow
Red
OPERATING TIMES
The time is expressed in seconds
t1
max
1
ts
-
5
t1I
max
30
t4i
-
8
t2
-
3
t5i
-
3
t2I
max
30
t4I
max
1
t2p
max
600
t6
max
360
t3
-
15
t6I
max
30
t3I
max
1
t7
-
120
Block
Red
Green + Yellow slow blinking
Green + Yellow fast blinking
Yellow
Green
Green + Yellow medium blinking
Red + Yellow fast blinking
Yellow fast blinking
