Lockout Due To Ignition Failure; Lockout Due To A Flame Or Flame Simulation Detected During Pre-Purging; 6.10 Recycle Function If Flame Goes Out During Operation - Riello RX25 S/PV H Installation, Use And Maintenance Instructions

6.9.2

Lockout due to ignition failure

P
TL
tw
M
M
I
V
SO
LED
6.9.3

Lockout due to a flame or flame simulation detected during pre-purging

P
TL
tw
M
M
I
V
SO
LED
Lockout types and triggering times in case of burner mal-
function
Description of types of faults
Presence of flame in pre-purging "t1"
No ignition at end of safety time "ts"
Flame goes out during operation
Not correct No. of turns of the fan motor (< 900 rpm)
Fault at the valve circuit

6.10 Recycle function if flame goes out during operation

The control box allows recycling, i.e. the complete repetition of
the start/up program.
If after the safety time since the last recycle the flame does not
appear, the burner carries out a lockout.
t1
t2 t3
ts
Lockout at 3
re-ignition
t1
ts
Lockout
.
Operation
D10631
th
.
D7253
Key
D10633
– Ignition transformer
I
LED – Reset button LED indicating operating
– Fan motor
M
– Ionisation probe
SO
– Limit thermostat
TL
– Gas valve
V
Lockout
At the end of the time of "t1"
After max. 3 repeats, within 1 second
After max. 1 repetition, if there is no flame at the end of ts
After max. 20 seconds
At the end of the time of "t1"
17
GB
Red (LED signalling)
status
Red (LED signalling)
Fig. 15
Fig. 16
20030020