• 52 • BALTIC-IOM-0412-E / Service manual
GAS BURNERS
Gas burner fi re-up sequence
Operation from control
Thermostat GAS =Closed
Gas ignition control block signal
Pre-ventilation 30 seconds
Gas valve remains open
Extraction fan ON
Fire-up eectrode 4s
Normal operation
Gas valve open
Gas control valve closes
BURNER STOPS
Gas control valve closes
BURNER STOPS
Fault on gas control
block
6 minutes delay
Fault on CLIMATIC™
Supply thermostat limit?
(Auto Reset)
Air press switch ON
or backfi re thermostat?
Gas low pressure switch?
Signal from ionisation probe still ON?
AIR pressure switch ON
backfi re thermostat ON?
Ionisation 1 second after the end of sparking?
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
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