Riello 566M Installation, Use And Maintenance Instructions page 26

OPERATING PROGRAMME
NORMAL OPERATION
P
TL
t
2
t
1
M
M
I
V
SO
LED
Flame loss during operation (Recycle max 3 attempts)
MV = still
SO
LED
OPERATING TIMES (in seconds)
t1, t3l, t4l, t4a t2l
max max
1 30
Standby time pending an input signal to control box:
t1
reaction time, the control box stands still for the time t1.
Flame or flame simulation detected before demand for
t1I
heat: the appliance stands still.
Wait time after a request for heat:
t2
the control box stays still for the t2 time.
Check whether the air pressure switch has already been
moved to the work position before the required heat:
t2a the control box remains in standby status, a lockout fol-
lows if the air pressure switch remains switched for the
T2a time.
Flame or flame simulation detected before during
standby time:
t2I
lockout occurs if flame or flame simulation persists for
time t2l.
Pre-purging time:
t3
start of the fan motor.
Time for checking the switching of the air pressure
switch in the operating position during the pre-purging
t3a time:
if the pressure switch does not switch within t3a a lock-
out follows.
3286
t
3
t
4i
t
s
Green
Green
t2, t4i t2a t3
- - - max
3 120 40
KEY TO LAY-OUT
I
LED – Reset button LED indicating operating
M
SO – Ionisation probe
TL – Limit thermostat
V
t
4L
.
Lockout
D7393
t3a t3r ts t6
max - max
15 70 3 360
Flame or flame simulation detected during pre-purging:
t3I
immediate lockout.
A recycle attempt is made in the event of a pressure
drop during pre-ventilation: in the case of a second air
pressure drop between the 16th and 29th second
t3r
another lockout follows; if there is a pressure drop
between the 30th second and 40th second , the appli-
ance immediately goes into lockout.
Safety time:
ts if at the end of the ts time there is no flame, a lockout
follows.
Air pressure drop checking time during the ts time and
t4a the normal operation:
the control box locks out immediately.
Transformer turn on time:
t4i
total ignition time.
Flame loss in operation:
t4I valve drop maximum reaction time, lockout occurs after
3 recycle attempts.
Post-purging time:
t6 additional purging time on the opening of the heat limit
thermostat (TL).
8
GB
– Ignition transformer
status
– Fan motor
– Gas valve
Red (LED lights)
Green (LED lights)
No signal needs to be received