Roca LAURA 20 - Flame Safeguard Rectification System (II)

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Flame Safeguard Rectification System (II)
Yes
Yes
Si
No
No
No
Light-up
Boiler reset
•End of spark ignition
•Service available
Press reset button
•End of sparks ignition
•Safety solenoid
valve closes
•Display of fault code
17 and red LED
Interruption of service
2nd solenoid
valve opens
(47,604 Btu/12 Th)
Light-up
process
Fault
corrected
Service now restored
Lockout
Attempt to relight
Spark ignition:
ignition
electrodes
Safety solenoid
valve opens
(gas inlet)
1st solenoid
valve opens
(27,769 Btu/7 Th)
Lights up
in less than
2 secs.
Lights up
in less than
3 secs.
Laura 20/20F wall-hung waterheaters