Operating Programme; Normal Operation - Riello 40 Installation, Use And Maintenance Instructions

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 heat request:
t1I
the control box stands still.
Stand-by time after a request for heat:
t2
the control box stands still for the t2 time.
Check whether the air pressure switch has already been
switched to the operating 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 during standby time:
lockout occurs if flame or flame simulation persists for
t2I
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.
3389
t
3
t
4i
t
s
Green
Green
t2, t4i t2a t3
- - - max
3 120 40
KEY TO LAYOUT
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 an air pres-
sure drop during pre-purging:
in the case of a second air pressure drop between the
t3r
16th and 29th second another lockout follows; if there is
a pressure drop between the 30th second and 40th sec-
ond, the control box immediately goes into lockout.
Safety time:
if at the end of the ts time there is no flame, a lockout
ts
follows.
Air pressure drop checking time during the ts time and
the normal operation:
t4a
the control box locks out immediately.
Transformer ignition 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
request limit thermostat (TL).
8
GB
– Ignition transformer
status
– Fan motor
– Gas valve
Red (LED lights)
Green (LED lights)
No signal needs to be received