Table Of Times; Operating Status Indication - Riello 40 GS5 Installation, Use And Maintenance Instructions

5.13 Table of times

Symbol Description
Standby: the burner is waiting for the heat request, the closure of the gas pressure switch, the open-
t0
ing of the air pressure switch
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
Check whether the air pressure switch has already been moved to the work position before the
t2a required heat: the control box remains in standby status, a lockout follows if the air pressure switch
remains switched for the T2a time.
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
Time for checking the switching of the air pressure switch in the operating position during the pre-
t3a
purging time: if the pressure switch does not change over within t3a there is a lockout.
A recycle attempt is made if there is an air pressure drop during the pre-purging stage: there is then
a lockout in the event of a second loss of air pressure between the 16th second and the 29th; is a
t3r
loss of pressure between the 30th second and the 40th, the control box goes immediately into lockout
mode.
ts Safety time
t4i Total spark ignition time
Air pressure drop checking time during the ts time and the normal operation:
t4a
the control box locks out immediately.
t4l Reaction time to achieve safety deactivation due to flame loss
- 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
tsm Standby time for servomotor opening of the electric damper opener

5.13.1 Operating status indication

Status
Waiting fr a heat request, waiting for the closure of the gas
pressure switch, waiting for the opening of the air pressure
switch
Awaiting heat request with continuous purging
Pre-purging, or awaiting air pressure switch closure, or
long pre-purging
Safety time without flame
Safety time with flame
Normal operating position
Key to layout
ON
20146122
OFF Colour code
RED
ORANGE
GREEN
Installation
Reset button
colour
-
ORANGE
Blink
ORANGE
Blink
GREEN
Blink
GREEN
GREEN
Tab. H
22
GB
Value (sec.)
max 120
re-cycles
Seconds Colour code
- - -
0.5 2.5
0.5 0.5
0.5 0.5
- -
- -
-
2
25
4.5
25
40
1
max 15
-
3
3
1
1
0.4
0.8
3
~ 4
Tab. F
Tab. G