Beckett Oil Burner Manuel D’Utilisation

RWB 6104 BAFG R02 

  

Page 13

Start up burner/set combustion

For R7184 primary controls, see Technician’s 
Quick Reference Guide, part number 61351 for 
special pump priming sequence.
Prepare for combustion tests by drilling a ¼” sam-
pling hole in the fl ue pipe between the appliance 
and the barometric draft regulator.

Initial air adjustment — Using a smoke tester, ad-
just the air shutter (and air band, if necessary) to 
obtain a clean fl ame. Now the additional combus-
tion tests with instruments can be made

   

 Allow the burner to run for approximately 5 to 10 
minutes.
 Set the stack or over-fi re draft to the level specifi ed 
by the appliance manufacturer.

typically over-fi re 

draft is -0.01” or   -0.02” w.c. 
Direct Venting

; typically may not require draft 

adjustment.
High Effi ciency/Positive Pressure Appliances

; 

also vary from traditional appliances (see manu-
facturer’s recommendations).

 Follow these four steps to properly adjust the burn-
er:

   Adjust the air shutter/band until a trace of 

smoke is achieved.  

At the trace of smoke level, measure the 
CO

2 

(or O

2

) . This is the vital reference 

point for further adjustments.  Example: 
13.5% CO

2 

(2.6% O

2

)

  Increase the air to reduce the CO

2

 by 

1.5 to 2 percentage points. (O

2

 will be in-

creased by approximately 2.0 to 2.7 per-
centage points.)   Example: Reduce CO

2

 

from 13.5% to 11.5% (2.6% to 5.3% O

2

).  

   Recheck smoke level. It should be Zero.

 

This procedure provides a margin of 

 

reserve air to accommodate variable 

 conditions.
If the draft level has changed, recheck 
the smoke and CO

2

 levels and readjust 

the burner if necessary

Once combustion is set, tighten all fasteners on air 
band, air shutter and head adjusting plate or es-
cutcheon plate.
Burner equipped with cover - Reinstall the cover 
and repeat Steps 2 and 4 above. If CO

2

 increases 

(O

2

 decreases), remove the cover and adjust the 

air setting so the CO

2

 (O

2

) with cover on meets 

requirements of Step 3.
Start and stop the burner several times to ensure 
satisfactory operation. Test the primary control and 
all other appliance safety controls to verify that they 
function according to the manufacturer’s specifi ca-
tions.

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6.

1.

2.

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3.

•

•

4.

5.

6.

Open the shutoff valves in the oil supply line to the 
burner.
Close air band and partially open air shutter. This 
is an initial air setting for the pump bleeding pro-
cedure only. Additional adjustments must be made 
with instruments.
Set the thermostat substantially above room tem-
perature.
Close the line voltage switch to start the burner. 
If the burner does not start immediately you may 
have to reset the safety switch of the burner pri-
mary control.
Bleed air from fuel unit as soon as burner motor 
starts rotating.

To bleed the fuel unit, attach a clear plastic hose 
over the vent fi tting. Loosen the fi tting and catch 
the oil in an empty container. Tighten the fi tting 
when all air has been purged from the oil supply 
system.
If the burner locks out on safety during bleeding, 
reset the safety switch and complete the bleed-
ing procedure. Note — Electronic safety switches 
can be reset immediately; others may require a 
three- to fi ve-minute wait.
If burner stops after fl ame is established, addi-
tional bleeding is probably required. Repeat the 
bleeding procedure until the pump is primed and 
a  fl ame is established when the vent fi tting  is 
closed.

1.

2.

3.

4.

5.

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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 an-
other start. 
Oil-Flooded Appliance: Shut off the electrical 
power and the oil supply to the burner and then 
clear all accumulated 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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WARNING