Field-controls WML-C Manual de usuario Pagina 24

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30318 R4 9/9/2005
24
IDLE STATE
THERMOSTAT CALLS FOR HEAT
SAFETY CHECK FOR FLAME (5 SEC.)
BURNER MOTOR & IGNITOR START
SOLENOID VALVE OPENS
TRIAL FOR IGNITION
10 SEC.
BURNER FLAME MONITORED
CARRYOVER STATE
Provides continuous spark
LED diagnostic light ON
Start Carr
y
over Time
r
CARRYOVER TIMER EXPIRES
RUN STATE
I
g
niter turns off.
THERMOSTAT SATISFIED
R7184 SHUTS OFF:
Burner Motor
Solenoid Valve
LED Dia
g
nostic Li
g
ht
RETURNS TO IDLE STATE
FLAME
FLA
ME
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 Igniter
Shuts off Burner Motor
Slow Flashes LED
dia
g
nostic li
g
ht
RECYCLE TIMER EXPIRES
(60 SECONDS
FLAME LOST
SAFETY CHECK FOR FLAME (5 SEC.)
NO FLAME
FLAME
SAFETY CHECK FOR FLAME (5 SEC.)
NO FLAME
FLAME
30 S
EC.
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