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12 6104 BCF5 R07
Start the Burner
Do not attempt to start the burner when excess oil has
accumulated in the appliance, the appliance is full of
vapor, or when the combustion chamber is very hot.
Do not attempt to re-establish fl ame with the burner
running if the fl ame becomes extinguished during start-
up, venting, or adjustment.
Vapor-Filled Appliance: Allow the unit to cool off and
all vapors to dissipate before attempting another start.
Oil-Flooded Appliance: Shut off the electrical power
and the oil supply to the burner and then clear all ac-
cumulated oil before continuing.
If the condition still appears unsafe, contact the Fire
Department. Carefully follow their directions.
Keep a fi re extinguisher nearby and ready for use.
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Failure to follow these instructions
could lead to equipment malfunction
and result in heavy smoke emission,
soot-up, hot gas puff-back, fi re and
asphyxiation hazards.
Explosion and Fire
Hazard
Starting the burner and venting air
Priming the pump
Initiate a call for heat
While the ignition is on, press and release the reset button
on the R7184 control (hold 1/2 second or less). If the
control has not locked out since it’s most recent complete
heat cycle, the lockout time will be extended to 4 minutes
(45 seconds in earlier units), and the ignition will remain
on the entire heat cycle.
Bleed the pump until all froth and bubbles are purged. If
prime is not established within the extended lockout time,
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Do not allow oil to intermittently spray into a hot com-
bustion chamber while bleeding.
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 when
venting air from the fuel pump.
Ensure that all bubbles and froth are purged from the
oil supply system before tightening the pump air bleed
valve.
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Failure to bleed the pump properly
could result in unstable combustion,
hot gas puff-back and heavy smoke.
Hot Gas Puff-back and
Heavy Smoke Hazard
Initial air settings (Table 5)
Loosen the air band and shutter, and adjust to the
approximate fi ring rate settings given in Table 5.
These initial settings should be adequate for starting the
burner. Once the burner is in operation, the air settings
will be adjusted for best performance as discussed later in
this manual.
Follow the procedures described later in this manual for
fi ne-tuning the air settings.
Set appliance limit controls
Set the appliance limit controls in accordance with the
appliance manufacturer’s recommendations.
Prepare the fuel unit for air venting
To vent air from the oil supply line, attach a clear hose
to the pump air bleed valve (fi gure 9) on the fuel unit.
Provide a container to catch the oil. Loosen the pump air
bleed valve.
Vent the air as described in the next section under Start
the burner.
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Table 5 - Initial air shutter and band settings
Rate
GPH
Approximate air settings
CF500
CF800
Tube A Tube B
Shutter Band Shutter Band Shutter Band
1.75 1 0 -- -- -- --
2.25 2 0 -- -- -- --
3.00 10 1 1 0 -- --
3.50 10 2 3 0 -- --
4.00 10 3 4 0 -- --
5.00 10 5 9 0 8 2
5.50 10 10 9 5 9 4
6.00 -- -- 10 3 10 3
7.00 -- -- 10 8 10 5
8.00 -- -- -- -- 10 10
Note: These settings are appoximate, and can vary depending on
actual job conditions and overfi re pressure