Operating Programme; Normal Operation - Riello RX 70 S/PV Instructions Pour Installation, Utilisation Et Entretien

6.8

Operating programme

6.8.1

Normal operation

P
T L
t w t 1
M
M
I
V
S O
Flame loss during the operation
and lockout due to ignition failure
S O
L E D
Operating times
ta tf
20 1
Time expressed in seconds
Time for checking motor turns:
ta if the number of turns is lower than 900 rpm, after ta will
be carried out a lockout.
tf Response time after the flame disappearance.
Flame or flame simulation detected during pre-purging:
tl
immediate lockout.
Stabilisation time:
tm
the modulation occurs after this time.
Safety time:
ts if at the end of time ts there is no flame, tpp is carried
out. After 3 times follows a lockout.
(*) Burner adjustment for continuous purging operation.
Start-up, calibration and operation of the burner
t m
t 2 t 3
t s
.
Lockout
t f
20153236
tl tm
40 10
Key
I – Ignition transformer
LED – Reset button LED indicating operating status
M – Fan motor
SO – Ionisation probe
TL – Limit thermostat
V – Gas valve
Red (LED signalling)
No signal needs to be received
ts tw t1
5 - 40
tw Stabilisation time motor turns.
Pre-purging time:
t1
by the signal of heat request to the end of the ignition.
Transformer pre-ignition time:
t2
ignition before the valve closing.
Transformer ignition time:
t3
the transformer remains on during the safety time.
Post-purging time:
Additional purging when the heat request is completed,
t8
or in case of flame failure during the operation or in
case of ignition failure.
21 GB
Fig. 14
t2 t3 t8
1 5 (*)
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