MODEL
Instruction Manual
AFII 85, AFII 100, AFII 150
Types “HLX” & “FBX” air tube combinations
Voltage: 120 Vac / 60 Hz
AFII burner with type “HLX” air tube
Type “FBX” air tube combinations
A
FII
Oil
Burner
FII
Beckett
Instruction Manual – Model AFII Oil Burner
Beckett
Contents
Prepare before installing
Prepare burner & site
Adjust, pipe, & wire burner
Startup & adjust burner
Service & maintain burner
Verify specifications ……………………………….…………………..…….………….. 3
Be aware of hazard definitions …………….…………….…..………..……………….. 3
Check certifications/approvals ……………………………………..…………………... 3
Notice special requirements ………………….…………...…………..……………….. 3
Inspect/prepare installation site ……………………...…………..………………….… 4
Prepare burner ……………………………...…..…………………..…………………… 5
HLX arrangement……………….…………….………………………..………………... 6
FBX arrangement …………………………………….….…………..………………….. 7
Mount burner on appliance ………………………………..…………..……………….. 8
Connect fuel lines ………………………………………………………..……………… 8
Wire burner ………………………………………………………………..……………... 8, 9
Startup burner/set combustion ………..……………..….…………..…………………. 10
Set combustion with instruments …………..………….…………..…………………... 10
Perform regular maintenance …………………..……….……………..……….……… 10
To replace the blower wheel ………………………..……………….…………………. 10
Replacement parts ………………………………………………………………………. 11
Owner’s information and warranty ………………………………….………….……… 12
– Air Tube Combination (ATC) codes
Table 1
HLX30 HLX50 HLX70 HLX90 HB AF2-6 0.40-0.85 gph 0.65-1.00 gph 0.75-1.35 gph
USABLE AIR TUBE LENGTH DIM. “A” (see Fig. 5) FIRING RATE RANGE
3” 5” 7” 9” ATC Code Head AFII 85 AFII 100 AFII 150
Head Design – Adjustable w/ stop screw – typical applications: Wet base boilers
HLX30 HLX50 HLX70 HLX90 HC AF2-9 N/A 0.65-1.00 gph 0.75-1.50 gph
AFII AIR TUBE COMBINATION AND FIRING RATE CHART
HLX30 HLX50 HLX70 HLX90 HD AF2-6 0.40-0.85 gph 0.65-1.00 gph 0.75-1.10 gph
HLX30 HLX50 HLX70 HLX90 HE AF2-9 N/A 0.65-1.00 gph 0.75-1.35 gph
FBX30
FBX30 FBX50 FBX70 FBX90 HHXS FB4 N/A 0.75-1.10 gph 1.10-1.25 gph
2
FBX30 FBX50 FBX70 FBX90 HGXS FB3 0.55-0.85 gph 0.55-1.10 gph 0.85-1.20 gph
FBX30 FBX50 FBX70 FBX90 HIXS FB6 N/A 0.85-1.15 gph 1.15-1.35 gph
Head Design – Fixed – typical applications: Furnaces, Dry base boilers, Water heaters
FBX50 FBX70
FBX90
HFXS FB0
0.40-0.65 gph 0.55-0.75 gph 0.75-1.00 gph
Beckett
Capacity
“HLX” heads
Firing rate ..……..……………....…... 0.40 – 1.50 GPH
Input ..………..….…………… 56,000 – 210,000 Btu/h
“FBX” heads
Firing rate ..…..……………………… 0.40 - 1.35 GPH
Input ..………….…..………….56,000 – 189,000 Btu/h
Fuels U. S.
Electrical
…. No. 1 or No. 2 heating oil only (ASTM D396)
Canada
….... No. 1 stove oil or No. 2 furnace oil only
Power supply ....…….... 120 VAC/60 Hz/single phase
Operating load ……….… 5.8 Amps maximum; Note 1
Motor …..……… ……………………..1/7 hp, 3450 rpm
……….……...…… rotation CW when facing shaft end
Ignition .……... Continuous duty iron-core transformer
………..... Continuous duty solid state igniter
Fuel unit
Air tube
Dimensions
OR
Outlet pressure ………..…..……………………. Note 2
ATC code ……………………….. See Table 1, page 2
Height (maximum) ……….…….….…………13 inches
Width (maximum) ………….………..….. …..14 inches
Depth (chassis only) ………….……….6-11/16 inches
Air tube diameter ………………………….3 ½ inches
Note 1. A burner with an electronic igniter will have a lower operating current.
The actual load should be determined by a current meter.
Note 2. See appliance manufacturer’s burner specifications for
recommended outlet pressure. Pressure is 140 psig unless otherwise noted.
SK9642
Instruction Manual – Model AFII Oil Burne
Prepare before installing
Be aware of hazard definitions Verify specifications
DANGER
Denotes presence of a hazard which, if ignored, will result in
severe personal injury, death, or substantial property damage.
WARNING
severe personal injury, death, or substantial property damage.
CAUTION
minor personal injury or property damage.
related to personal injury or property damage.
Check certifications/approvals
• Underwriters Laboratories has certified this burner to comply with
• State and local approvals are shown on burner rating label (see below).
• All oil burners should be installed in accordance with regulations of
• For recommended installation practice in Canada, refer to the latest
Notice special requirements
This equipment must be installed, adjusted and started only
by a
experienced with all codes and ordinances, who is responsible for the
installation and adjustment of the equipment. The installation must comply
with all local codes and ordinances and with the latest revision of the National
Fire Protection Standard for Oil-Burning Equipment, NFPA 31 (or CSA B139).
WARNING
Read all instructions before proceeding. Follow all
instructions completely. Failure to follow these instructions could result in
equipment malfunction, causing severe personal injury, death or substantial
property damage.
or controls during unpacking, notify the carrier at once and file the appropriate
claim.
When contacting Beckett for service information — Please
record the burner serial number (and have available when calling or writing).
You will find the serial number on the silver label located on the top right of the
burner, to the left of the air dial. See illustration below.
Denotes presence of a hazard which, if ignored, could result in
Denotes presence of a hazard which, if ignored, could result in
NOTICE
Intended to bring special attention to information, but not
ANSI/UL 296 and has listed it for use with #1 or #2 fuel oil as specified in
ASTM D396. Low sulfur #1 and #2 fuel oils reduce heat exchanger
deposits with all burners compared to the standard fuels. Reduced
deposits extend the service interval for cleaning and improve the
efficiency of the appliance over time. Low sulfur fuels reduce
particulate and oxides of nitrogen emissions as well. The Oilheat
Manufacturers' Association recommends these fuels as the
preferred fuels for this burner.
the latest revision of the National Fire Protection Association
Standard NFPA 31 and in complete accordance with all local codes
and authorities having jurisdiction. Regulation of these authorities
take precedence over the general instructions provided in this
installation manual.
version of CSA Standard B139.
DANGER
qualified service agency
NOTICE
Concealed damage
– an individual or agency, licensed and
— If you discover damage to the burner
3
Instruction Manual – Model AFII Oil Burner
Prepare burner & site
Beckett
Inspect/prepare installation site Inspect/prepare installation site
Chimney or vent
• Inspect the chimney or vent, making sure it is properly sized and in good
condition for use.
For those installations not requiring a chimney, such as through-the-wall
•
vented appliances, follow the instructions given by the appliance and
power venter (if used) manufacturers.
Direct air supply and sidewall venting
• When sidewall venting appliances, carefully follow appliance and power
venter instructions for installation and wiring.
• AFII burners are equipped with a removable air inlet to allow use of a 4”
duct to supply outside air for combustion. Do not exceed 70 equivalent
feet. Allow 6 feet for each elbow.
1. Remove the inlet cover.
2. Insert 4" duct into the inlet ring.
3. Fasten duct into place using at least 3 sheet metal screws evenly
spaced around the inlet ring. Refer to Figure 1.
4. Remove the barometric draft control unless it is in the same
atmospheric pressure zone as the inlet.
On the outside of the home use a 90° elbow pointed downward with a 1/4"
mesh screen over its opening. The air inlet elbow must be located above
the snow line and in such a way as to prevent leaves and/or other debris
from blocking the air flow. Such debris will prevent proper operation of the
burner. Refer to local codes for proper location of inlet.
Figure 1
– Outside air connection
4 IN. DUCT
AIR
INLET
ELBOW
Exhaust fans and other air-using devices
Size air openings large enough to allow for all air-using devices in addition
to the minimum area required for combustion air. If there is any possibility
of the equipment room developing negative pressure (because of exhaust
fans or clothes dryers, for example), pipe combustion air directly to the
burner.
Clearances to burner and appliance
• Provide space around burner and appliance for easy service and
maintenance.
• Check minimum clearances against those shown by the appliance
manufacturer and by applicable building codes.
Combustion chamber — Burner retrofitting
Verify that the appliance combustion chamber provides at least the minimum
dimensions given in Table 2.
CAUTION
When retrofitting an appliance that has an unlined stainless
steel combustion chamber, chamber burnout could result from the use of a
high performance burner. Protect the chamber from high temperatures
through the use of "wet-pac" or a similar ceramic liner. Some equipment may
utilize a stainless steel combustion chamber that has been designed and
tested by the manufacturer for use with a flame retention burner, therefore
ceramic protection would not be necessary. Refer to appliance manufacturer’s
instructions. Failure to comply could result in damage to heating equipment.
– Minimum combustion chamber dimensions
Table 2
(continued)
¼” MESH
SCREEN
INLET
RING
Combustion air supply
See NFPA Standard 31 for complete details.
WARNING
If the burner is not supplied with a reliable combustion air
source, the burner cannot properly burn the fuel. This would result in
incomplete combustion, causing sooting and possible emission of carbon
monoxide. Severe personal injury, death or substantial property damage could
occur.
Appliance located in confined space
The confined space should have two (2) permanent openings: one near
the top of the enclosure and one near the bottom of the enclosure. Each
opening shall have a free area of not less than (1) one square inch per
1,000 BTU’s per hour of the total input rating of all appliances within the
enclosure. The openings shall have free access to the building interior,
which should have adequate infiltration from the outside.
Firing
rate
(gph)
0.50
0.75
1.00
1.25
1.50
Chamber dimension (inches)
Round
I.D.
Rectangular
Width Length
Height
Floor to
nozzle
8 7 8 12 5-6
9 8 9 12 5-6
10 9 10 12 ½ 5-6
11 10 11 12 ½ 5-6
12 11 12 13 6-7
4