Operating Programme; Normal Operation - Riello RX 90 S/PV Montage- Und Bedienungsanleitung

4.5

OPERATING PROGRAMME

4.5.1

NORMAL OPERATION

Loss of flame during operation (Recycle max. 3 attempts)
MV = stopped
OPERATING TIMES
t1 t1I t2
max. max. -
1 30 3
Time expressed in seconds
Standby time pending an input signal to control box:
t1
reaction time, control box takes no action for time t1.
Flame or flame simulation detected before demand for
t1I
heat:
lockout occurs if light persists for time t1l.
Standby time following a demand for heat:
t2
control box takes no action for time t2.
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
fan motor starts.
Purging check at maximum rpm from 12th to 20th sec-
t3a
ond of pre-purging.
Purging check at START rpm from 35th to 40th second
t3b
of pre-purging.
3342
Green
Green
t2l t3 t3a
- -
max.
30 40 8
KEY
I
- Ignition transformer
LED √ Reset button LED indicating operating
status
M
√ Fan motor
SO √ Ionization probe
TL √ Limit thermostat
V
√ Gas valve
Lockout
D7252
t3b t3l ts
- -
max.
5 1 3
Flame or flame simulation detected during pre-purging:
t3I
immediate lockout.
Safety time:
if no flame is detected by the end of time ts the cycle
ts
(start-up) is repeated and lockout occurs after 3
attempts to restart.
Transformer ignition time:
t4i
total ignition time.
Flame loss during operation:
t4I
valve drop maximum reaction time, lockout occurs after
3 recycle attempts.
Post-purging time:
t6
additional purging time when heat demand limit
thermostat (TL) opens.
Flame or flame simulation detected during post-purging:
t6I
lockout occurs if flame or flame simulation persists for
time t6l.
9
GB
Red (LED lights)
Green (LED lights)
No signal needs to be received
Purging motor at max. rpm
Purging motor at START rpm (t3b)
t4i t4l t6
-
max. max.
3 1 360
t6l
max.
30