Fault Diagnostics - Lockouts; Shutdown Test; Intermittent Operation; Recycle And Limit Of Repetitions - Riello RG2D Installation, Use And Maintenance Instructions

7.7.2

Fault diagnostics - lockouts

Fault description
Extraneous light (false flame signal)
Electrical power voltage fault
Electrical power frequency fault
Flame control voltage fault
Reset push-button / Remote reset anomaly
Lockout for no flame after Ts
Lockout for extraneous light signal or for parasite flame
Lockout for maximum number of cycle repetitions (flame
loss during operation)
Lockout for fan motor error
Lockout for fault with the circuit within the 1st stage valve
control
Lockout for fault with the circuit within the 2nd stage valve
control
Lockout for eeprom error
Short-circuit 1st stage valve lockout
Key
ON
7.7.3

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 28) and the number of possible resets (see par-
agraph "Protection reset" on page 29), are reset.
7.7.4

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 32).
The modification of the parameter setting for intermittent opera-
tion takes effect if:
 during the heat request, the switching off test function is ena-

bled;
 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).
20135920
Start-up, calibration and operation of the burner
OFF Colour code
RED
ORANGE
GREEN
Reset button colour
GREEN, RED
blinking alternately
ORANGE
slow blinking
ORANGE
ORANGE, GREEN
fast blinking alternately
GREEN, RED
fast blinking alternately
RED
RED
blink
RED
fast blinking
RED, ORANGE
blinking inverted
RED, GREEN
blinking inverted
RED
blinking inverted
ORANGE, GREEN
blinking alternately
RED, GREEN
slow blinking
7.7.5

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.
Tab. N If there is a new heat request during the recycle, the 3 attempts
are reset when the limit thermostat (TL) switches.
NOTE:
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).
28 GB
Seconds Colour code
0.5 0.5
2.5 2.5
- -
0.2 0.2
0.2 0.2
- -
0.5 0.5
0.2 0.2
2.5 0.5
2.5 0.5
2.5 0.5
0.5 0.5
2.5 2.5
Tab. M