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Figure 5- Wiring Diagram for 120/230V Burners without a control
SEQUENCE OF OPERATION: BURNERS WITH R7284G AND R8184G CONTROLS
BURNER OPERATION
On every call for heat the oil primary control performs an internal safety check which takes five seconds to complete.
During these five seconds, the oil p
rimary control verifies that the cad cell is outputting a “no flame” resistance value. After
the check, the oil primary control will simultaneously energize the burner blower motor, solenoid valve (if equipped), and
ignition device. The control will then enter the 15 second trial for ignition period; once flame is established the oil primary
control will continue to monitor the flame by using the cad cell
’s resistance value. The oil primary control allows burner
operation to continue until the thermostat control
’s “call for heat” is satisfied. Once the thermostat is satisfied the burner
will be de-energized. If flame is not detected during the trial for ignit
ion, the oil primary control will go into a “lock-out”
condition. If this occurs, proceed to the section titled SAFETY LOCK-OUT TIME.
SAFETY LOCK-OUT TIME
Ignition failure occurs during the first
“trial for ignition” period
The cad cell monitors the combustion chamber for flame during the
burner’s trial for ignition period. If no flame is detected
the oil primary control will go into a lockout condition. When the oil primary control goes into lockout it will de-energize the
burner, and the
control’s LED light will flash ½ sec on, and ½ sec off. Before attempting to start the burner again the
control must be reset. Press and hold the “i” button for three seconds to reset the control. If normal ignition does not occur
see
GENERAL TROUBLESHOOTING GUIDE
on page 7.
Do not keep pressing the reset button and restarting the burner more than once with the burner not
lighting this could cause oil buildup in the firing chamber. This will cause smoking and possible detonation that could
damage the equipment if the burner does light.
