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Start-up, calibration and operation of the burner
6.7.2 Fault diagnostics - lockouts
Tab. L
Key
Tab. M
6.7.3 Shutdown test
If the reset push-button is pressed during running operations for
more than 5 seconds and less of 10 seconds the burner will per-
form a shutdown, the oil valve is closed,the flame stop and start-
up sequence restarts.
If the switch off test is enabled, the number of repetitions of the
start up sequence (see paragraph “Recycle and limit of repeti-
tions” on page 30) and the number of possible resets (see par-
agraph “Protection reset” on page 31), are reset.
6.7.4 Intermittent operation
After 24 hours of continuous operation, the control box starts the
automatic switch-off sequence, followed by a restart, in order to
check for a possible fault with the flame sensor.
This automatic switch-off can be fixed at 1 hour, (see paragraph
“Programming menu” on page 34).
The modification of the parameter setting for intermittent opera-
tion takes effect if:
during the heat request, the switching off test function is
enabled;
there is a flame loss;
the heat request switches off and then later restarts;
the control box switches off and restarts;
the automatic restarting of the intermittent function occurs
(1hour/24hours).
6.7.5 Recycle and limit of repetitions
The control box allows a recycle function, i.e. complete repetition
of the start-up sequence, making up to 3 attempts, in the event
the flame failure during operation.
If the flame failure 4 times during operations, this will cause a
burner lockout.
If there is a new heat request during the recycle, the 3 attempts
are reset when the limit thermostat (TL) switches.
After 510 seconds of continuous operation, a new attempt of
possibility is added.
By disconnecting the power supply, when a new heat request oc-
curs (power supply is applied to the burner) all possible attempts
at re-ignition are reset (maximum 3).
Fault description Reset button colour
Seconds Colour code
Extraneous light (false flame signal)
GREEN, RED
blinking alternately
0.5 0.5
Electrical power voltage fault
ORANGE
slow blinking
2.5 2.5
Electrical power frequency fault ORANGE - -
Flame control voltage fault
ORANGE, GREEN
fast blinking alternately
0.2 0.2
Reset button / Remote reset fault
GREEN, RED
fast blinking alternately
0.2 0.2
Lockout for no flame after Ts RED - -
Lockout for extraneous light signal or for parasite flame
RED
blink
0.5 0.5
Lockout for maximum number of cycle repetitions (flame
loss during operation)
RED
Fast blinking
0.2 0.2
Lockout for fan motor error
RED, ORANGE
blinking inverted
2.5 0.5
Lockout for fault with the circuit within the 1st stage valve
control
RED, GREEN
blinking inverted
2.5 0.5
Lockout for eeprom error
ORANGE, GREEN
blinking alternately
0.5 0.5
Short-circuit 1st stage valve lockout
RED, GREEN
slow blinking
2.5 2.5
ON OFF Colour code
RED
ORANGE
GREEN
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