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IDLE STATE
THERMOSTAT CALLS FOR HEAT
SAFETY CHECK FOR FLAME
(5 SEC.)
BURNER MOTOR & IGNITOR START
SOLENOID VALVE OPENS
TRIAL FOR IGNITION
15 SEC.
BURNER FLAME MONITORED
CARRYOVER STATE
• Provides continuous spark
• LED diagnostic light ON
• Start Carr
y
over Timer
CARRYOVER TIMER EXPIRES
RUN STATE
• I
g
nitor turns off.
THERMOSTAT SATISFIED
R7184 SHUTS OFF:
• Burner Motor
• Solenoid Valve
• LED Dia
g
nostic Li
g
ht
RETURNS TO IDLE STATE
FLAME
FLAME
FLAME
FLAME
NO FLAME
NO FLAME
FLAME LOST
FLAME LOST
REMAINS IN IDLE STATE
R7184
SEQUENCE of
OPERATION
LOCKOUT STATE
R7184:
• Shuts off burner motor
• Shuts off igniter
• Shuts off Solenoid Valve
• Fast Flashes LED Diagnostic
Li
g
ht
TO EXIT LOCKOUT
PRESS RESET
RECYCLE TIMER STARTS
R7184:
• Shuts off Solenoid Valve
• Shuts off Ignitor
• Shuts off Burner Motor
• Slow Flashes LED diag-
nostic li
g
ht
RECYCLE TIMER EXPIRES
(60 SECONDS
FLAME LOST