19
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 Carryover Timer
CARRYOVER TIMER EXPIRES
RUN STATE
•
Ignitor turns off.
THERMOSTAT SATISFIED
R7184 SHUTS OFF:
•
Burner Motor
•
Solenoid Valve
•
LED Diagnostic Light
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
Light
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 light
RECYCLE TIMER EXPIRES
(60 SECONDS
FLAME LOST
Summary of Contents for P2HMX12F08001
Page 16: ...16 APPENDIX B WIRING DIAGRAM ...