All installations and services must be performed by qualified service personnel.
XIII. APPENDIX D: SEQUENCE OF OPERATIONS
OPB | 1 of 2 |
A. SEQUENCE OF OPERATIONS FOR THE HEATING SYSTEM
Mode of Operation
Standby (At any time the oil
valve is not energized)
Start
Control System Action
Continous safe operation check. If flame simulation condition present, system shuts off oil valve,ignitor, and burner motor; activates fast flashing LED.
Thermostat calls for heat,
contacts close
Ignition electrodes spark. Burner motor energized.
Oil valve energized after 15 second time delay.
On power interruption, system shuts off, restarts when power is restored.
Start trial for ignition
Flame must be detected
after 45 seconds.
If flame is not detected, the oil valve is
The retry sequence provides a 60 second wait before ignition is attempted again.
75
