TECHNICAL ASSISTANCE SERVICE
56
LOCKOUT BECAUSE OF IGNITION FAILURE
LOCKOUT BECAUSE OF EXTRANEOUS LIGHT
DURING PRE-PURGING
F
LED
t
2
t
1
HT
FM
ID
V1
P
M
t
3
l
PH
K
t
s
Lockout
RED
Flashing GREEN, RED
POWER SUPPLY
Flashing
GREEN
Flashing ORANGE
Lockout
RED
Flashing
GREEN
POWER SUPPLY
F
LED
t
1
t
3
t
4i
t
3i
t
s
t
5i
t
2
HT
FM
ID
V1
P
M
PH
K
Flashing
ORANGE
Flashing GREEN
F Flame detector
FM Fan motor
ID Ignition device
HT Heat request
V1 Light oil valve
t1 Standby time
t2 Initialisation time for checking
t3 Pre-purging time
t3i Pre-ignition time
t3l Check for presence of extraneous light during
pre-purging phase
t4i Total ignition time
t4l Reaction time to achieve safety lockout due to lack of
flame
t5i Post-ignition time
ts Safety time
tpp Post-purging time
PH Heater
K Start enable thermostat after pre-heating
LED
LED colour inside the button
(*) Only 3 consecutive ignitions are allowed
Description
Value
t0
Stand-by: The burner waits for the heat re-
quest.
-
t1
Standby time for an input signal: reaction time,
control box remains in waiting mode for
t1
.
≤ 1 sec
t2
Initialisation time for checking: time period af-
ter main power start-up.
3.5 sec
t2l
Checks for presence of extraneous light or
parasite flame during
t2
: waiting mode for
t2l
,
then lockout: the motor does not start.
25 sec
t2p
Light oil pre-heating time: waiting state for
t2p
, then lockout.
max 600
t3
Pre-purging time: the fan motor is running,
then the light oil valve is activated.
15 sec
t3l
Checks for extraneous light or parasite flame
during pre-purging: control box goes into
lockout at the end of
t3l .
25 sec
t3i
Pre-ignition time.
2 sec
ts
Safety time.
5 sec
t4i
Total ignition time.
10 sec
t4I
Reaction time to disable the valve due to lack
of flame.
≤ 1 sec
t5i
Post-ignition time.
3 sec
-
Minimum time to reset the control box using
reset button.
0.4 sec
-
Minimum time to reset the control box using
remote reset.
0.8 sec
tr
Re-cycles: max. 3 repeats of the complete
start-up sequence in the event of a lack of
flame during operation; the action at the end
of the last attempt following flame failure is a
lockout.
3 repeats
tpp
Post-purging time: additional purging time at
the end of the heat request. It can be inter-
rupted by a new heat request
60
