Riello 40 F5 Installation & Operating Manual page 17

RIELLO 40 SERIES OIL BURNER EQUIPPED WITH ELECTRONIC AIR
SHUTTER NORMAL OPERATIONAL SEQUENCE
POWER
STANDY BY
_m CALL FOR
HEAT
AIR
open
SHUTTER
_3 MOTOR /
PREPURGE
(_ IGNITION
Ol L VALVE
' FLAME
._ HEAT
SATISFIED
_ AIR
SHUTTER
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ELECTRIC AIR SHUTTER CLOSED ~ WAITING FOR CALL FOR HEAT
ELECTRIC AIR SHUTTER OPENS - ONCE FULLY OPEN SWITCHES POWER T+ BURNER MOTOR
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BURNER MOTOR STOPS ~ ELECTRIC AIR SHUTTER CLOSES
THERMOSTAT OR LIMIT CONTROL
40 SERIES OIL BURNER MODES
ELECTRIC AIR SHUTTER MODES
CONSTANT UNITERUPTED 120V POWER SUPPLY
TO ELECTRIC AIR SHUTTER ASSEMBLY
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