Table Of Times; Operating Status Indication - Riello MO550-BWG Instrucciones De Instalación, Uso Y Mantenimiento

3.7

Table of times

Symbol Description
t0 Standby: the burner is waiting for a heat request
t1 Standby time for an input signal: reaction time, control box remains in waiting mode for t1
t1l Flame or flame simulation detected before demand for heat: the control box remains idle.
t2 Initialisation standby time: checking time following the main power start-up
Checks extraneous light or parasite flame during t2: waiting mode for t2l, then lockout: the motor
t2l
does not start
t2p Oil pre-heating time : waiting mode for t2p, then there is a lockout (if there is a heater)
t3 Pre-purging time: The fan motor is running, then the gas valve is activated
Checks extraneous light or parasite flame during pre-purging: control box goes into lockout at the
t3l
end of t3l
t3i Spark pre-ignition time
ts Safety time
t4i Total spark ignition time
t4l Reaction time to achieve safety deactivation due to flame loss
Delay time between the 1
t5
1st stage valve
t5i Spark post-ignition time
- Minimum time to reset the control box using reset button
Minimum time to reset the control box using remote reset
Re-cycles: max. 3 repeats of the complete start-up sequence in the case of flame loss during opera-
tr
tion; the final action at the last attempt following flame failure is a lockout
3.7.1

Operating status indication

Status
Awaiting heat request
Awaiting heat request with continuous purging
Pre-heating time
Pre-purging, or long pre-purging
Safety time without flame
Safety time with flame
Normal operating position
Key
ON
Electrical data and operating times
st nd
and 2 stage: opening time of 2nd stage valve after opening of the
OFF Colour code
RED
ORANGE
GREEN
Reset button
colour
-
ORANGE
Blink
GREEN
Blink
ORANGE
Blink
GREEN
Blink
GREEN
GREEN
Tab. C
9
GB
Value (sec.)
max 600
re-cycles
Seconds Colour code
- - -
0.5 2.5
0.5 2.5
0.5 0.5
0.5 0.5
- -
- -
-
2
25
4.5
25
15
25
5
5
15
1
20
3
0.4
0.8
3
Tab. A
Tab. B
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