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Manual 2100-422M
Page 16 of 42
PRIMING THE PUMP
1. Prepare the burner for priming by fully opening
the pump bleed port and attaching a clear
plastic hose over the bleed port fitting. Use a
suitable container to collect purged oil.
2. Initiate a call for heat.
3. After the burner starts, press and hold the reset
button for 15 seconds until the yellow LED
turns on. This indicates that the button has
been held long enough.
4. Release the reset button. The yellow LED will
turn off and the burner will start up again.
5. At burner start up, tap the reset button within
the first 10 seconds of the ignition cycle. This
will transition the control to a dedicated Pump
Prime mode, during which the motor, igniter
and valve are powered for four minutes. The
yellow LED will be on.
6. Bleed the pump until all froth and bubbles are
purged. If desired, hold the reset button for at
least one second to exit Pump Prime mode and
return to Standby.
7. At the end of 4 minutes, the yellow LED will
turn off and the control will automatically return
to standby mode.
8. If prime is not established during the four
minute pump prime mode, return to step 5 to
re-enter Pump Prime mode. Repeat steps 5
through 7 until the pump is fully primed and the
oil is free of bubbles.
9. Terminate the call for heat, and the control will
resume normal operation.
CAD CELL RESISTANCE INDICATOR
• During the burner Run state, tap the reset button
(less than 1 second) to check the cad cell
resistance range. The yellow LED will flash 1 to 4
times depending on the amount of light detected
by the cad cell. See chart below:
sehsalFDELwolleYegnaRnoitceteDemalF
1)smho004-0(lamroN
2)smho008-004(lamroN
3)smho0061-008(lamroN
4)tuokcoL-smho0061(detimiL
WARNING
Hot Gas Puff-Back & Heavy Smoke Hazard
Failure to bleed the pump properly could
result in unstable combustion, hot gas puff-
back and heavy smoke.
• Do not allow oil to spray into a hot combustion
chamber while bleeding air from the pump.
• Install a gauge in the nozzle discharge port
tubing or fully open the pump bleed valve to
prevent oil spray from accumulating in the
combustion chamber during the air bleed
procedure.
• Ensure that all bubbles and froth are purged
from the oil supply system before tightening the
pump air bleed valve.