Beckett CF 2500, CF 3500 User Manual
MODELMODEL
MODEL
MODELMODEL
2500/3500
Oil
CF
CF
2500/
3500
Burner
Instruction Manual
Low/High Operation
Firing rate: CF2500A 17.0 – 19.9 GPH
CF2500 17.0 – 25.0 GPH
CF3500A 17.0 – 35.0 GPH
Motor voltage: 208/230 — 60 Hz std.
Thank you
burner . With proper care and regular
maintenance, it will provide years of
trouble-free service. Please take a few
minutes to read the section entitled “T o
the owner” inside this manual. Then, keep
the manual in a safe place where it can be
easily located if needed by your
professional service technician.
for purchasing a Beckett
Instruction Manual – Model CF2500/CF3500 Oil Burner
Please . . . read this page first
Hazard definitions
The following will be used throughout this manual to bring attention to hazards and their risk factors, or to special information.
Denotes presence of a hazard which, if
ignored, will result in severe personal injury,
death or substantial property damage.
Denotes presence of a hazard which, if
ignored, could result in severe personal injury ,
death or substantial property damage.
Denotes presence of a hazard which, if
ignored, could result in minor personal injury
or property damage.
To the owner —
Installation and adjustment of the burner
requires technical knowledge and the use of
combustion test instruments. Do not tamper
with the unit or controls. Call your qualified
service technician. Incorrect operation of the
burner could result in severe personal injury,
death or substantial property damage.
Have your equipment inspected and adjusted
at least annually by your qualified service
technician to assure continued proper
operation.
Never attempt to use gasoline in your heating
appliance or to store gasoline or combustible
materials near the heating equipment. This
could result in an explosion or fire, causing
severe personal injury, death or substantial
property damage.
Intended to bring special attention to
information, but not related to personal injury
or property damage.
To the owner —
Never burn garbage or refuse in your heating
appliance or try to light the burner by tossing
burning material into the appliance. This
could result in severe personal injury, death
or substantial property damage.
Never attempt to use crankcase or waste oil in
your heating appliance. This could damage
the fuel unit or heating equipment, resulting
in risk of severe personal injury, death or
substantial property damage.
Never restrict air openings on the burner or to
the room in which the appliance is located.
This could result in fire hazard or flue gas
leakage, causing severe personal injury , death
or substantial property damage.
To the installer —
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.
This equipment must be installed, adjusted
and started only by a qualified service
technician – an individual or agenc y, licensed
and 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 National
Fire Protection Standard for Oil-Burning
Equipment, NFP A 31 (or CSA B139-M 91).
High altitude installations — Accepted industry practice requires no derate of burner capacity up to 2,000 feet
above sea level. For altitudes higher than 2,000 feet, derate burner capacity 4% for each 1000 feet above sea level.
2
To the installer —
Concealed damage - If you discover damage
to the burner or controls during unpacking,
notify the carrier at once and file the
appropriate claim.
Contacting Beckett for service information
or parts - Please record the burner serial number
(and have available when calling or writing).
You will find the serial number on the
Underwriters Laboratories label, located on
the left rear of the burner .
50 Hz motors — The burner ratings, air
settings and nozzle ratings are based on
standard 60 hz motors (at 3450 rpm). Derate
all ratings 20% when using 50 hz motors.
Consult factory for specific application data.
Form 6104 BCF-35-R0699
Instruction Manual – Model CF2500/CF3500 Oil Burner
Warranty
Beckett warrants its equipment to those who
have purchased it for resale, including your
dealer. If you have any problems with your
equipment or its installation, you should
contact your dealer for assistance.
Specifications
Fuels #1 or #2 Fuel Oil
Firing range CF2500A 17.0 - 19.9 GPH
CF2500 17.0 - 25.0 GPH
CF3500A 17.0 - 35.0 GPH
Motor 2 HP 3450 RPM
208/230/60 hz/1-PH std.
13.4 amps @ 230 VAC
Optional voltages:
(60 hz or 50 hz) –
• 208/230/480/3-PH
Ignition Trans. 120V/12,000V
Housing Cast aluminum
Fuel unit 100 - 300 PSIG
Oil nozzle 45° - 70° solid
Shipping wt. 106 lbs.
Dimensions See Figure 7 (Page 7)
(See NOTICE on opposite page for 50 hz motor applications.)
Contents
Please . . . read this page first ................ 2
Pre-installation checklist........................... 4
Mount the burner .......................................... 6
Connect fuel line(s) ...................................... 8
Wire the burner ............................................10
Sequence of operation - typical ............ 11
Prepare the burner for start-up ............. 11
Start the burner .......................................... 14
Maintenance and service .........................15
Replacement parts...................Back cover
Agency approvals
• Underwriters Laboratories has certified
this burner to comply with ANSI
Standard 296 and has listed it for use
with No. 1 or No. 2 fuel oil as specified
in ASTM D396. State and local
approvals appear on the burner rating
label.
• Certified by ULC.
• Approved by Commonwealth of
Massachusetts - State Fire Marshall.
• Accepted by N.Y.C. M.E.A.
• Other approvals may be available and
must be specified at time of order.
Form 6104 BCF-35-R0699
Before you begin . . .
The following resources will give you additional information
for your installation. We suggest that you consult these
resources whenever possible. Pay particular attention to the
appliance manufacturer’s instructions.
Appliance manufacturer’s instructions — Always follow
the appliance manufacturer’s instructions for burner
installation, equipment and setup.
1–800–OIL–BURN — Beckett’s technical services hot-line.
www .beckettcorp.com — Beckett’s website.
3
Instruction Manual – Model CF2500/CF3500 Oil Burner
Rated
gph @
100 psig
Pressure - pounds per square inch
125 150 175 200 250 300
5.00 5.59 6.13 6.61 7.07 7.50 8.66
5.50 6.15 6.74 7.27 7.78 8.70 9.54
6.00 6.71 7.33 7.94 8.48 9.49 10.40
6.50 7.26 7.96 8.60 9.20 10.30 11.25
7.00 7.82 8.56 9.25 9.90 11.06 12.12
7.50 8.38 9.19 9.91 10.60 11.85 13.00
8.00 8.94 9.80 10.58 11.31 12.65 13.85
8.50 9.50 10.45 11.27 12.06 13.40 14.70
9.00 10.06 11.02 11.91 12.73 14.20 15.60
9.50 10.60 11.70 12.60 13.50 15.00 16.45
10.00 11.18 12.25 13.23 14.14 15.81 17.32
10.50 11.74 12.85 13.90 14.85 16.60 18.18
11.00 12.30 13.47 14.56 15.55 17.39 19.05
11.50 12.85 14.08 15.22 16.26 18.18 19.92
12.00 13.42 14.70 15.87 16.97 18.97 20.78
12.50 13.98 15.31 16.54 17.68 19.76 21.65
13.00 14.54 15.92 17.20 18.38 20.55 22.52
13.50 15.10 16.53 17.85 19.09 21.34 23.38
Pre-installation checklist
❏ Combustion air supply
• The burner requires combustion air and ventilation air for
reliable operation. Assure that the building and/or combustion air openings comply with National Fire Protection
Standard for Oil-Burning Equipment, NFP A 31. F or appliance/burner units in confined spaces, the room must have
an air opening near the top of the room plus one near the
floor, each with a free area at least one square inch per
1,000 Btu/hr input of all fuel burning equipment in the
room. For other conditions, refer to NFP A 31 (CSA B1139M91 in Canada).
• If there is a risk of the space being under negative pressure
or of exhaust fans or other devices depleting available air
for combustion and ventilation, the appliance/burner
should be installed in an isolated room provided with outside combustion air.
❏ Clearances
• With the burner installed in the appliance, there must be
adequate space in front of and on the sides of the burner to
allow access and operation. Verify that the clearance dimensions comply with all local codes and with the appliance manufacturer's recommendations.
❏ Vent system
• The flue gas venting system must be in good condition
and must comply with all applicable codes.
❏ Electrical supply
• Verify that the power connections available are correct for
the burner. All power must be supplied through fused disconnect switches.
❏ Verify burner components —
• Burner box, Model CF2500A/CF2500/CF3500A
• Air tube assembly (selected per following)
• Mounting flange kit
• Pedestal mounting assembly kit (recommended)
• Oil nozzle, per Table 1 — Use only 45° to 70° solid pat-
tern nozzles unless otherwise shown by appliance manufacturer.
The CF2500A, CF2500 and CF3500A are dual nozzle burners. To select the nozzles, use half of the maximum firing
rate and select a nozzle under the 300 psig column (high
fire rate). Select the corresponding nozzle from column 1
(Rated gph @ 100 psig). Two nozzles will be required.
❏ Fuel supply
• The fuel supply piping and tank must provide #1 or #2
fuel oil at pressure or vacuum conditions suitable for the
fuel unit (oil pump) on the burner . Refer to fuel unit literature in the literature envelope in the b urner carton to verify
allowable suction pressure.
When fuel supply is level with or higher than burner
fuel unit —
• When the fuel unit is not required to lift the oil, the installation is usually suitable for either a one-pipe or two-pipe
oil system. The oil pressure at the inlet of the fuel unit must
not exceed 3 psig.
• See Figure 8 for one-pipe fuel supply installations. See
Figure 9 for two-pipe fuel supply installations.
When fuel supply is below the burner fuel unit —
• Use a two-pipe oil system when the fuel unit must lift the
oil more than 2 feet. The return line provided by the twopipe system is needed to purge the air from the fuel lines
and minimize the likelihood of air-related problems during operation.
4
The fuel unit is shipped without the by-pass
plug installed. You must install this plug on
two-pipe system. DO NOT install the by-pass
plug in the fuel unit if connected to a onepipe oil system. Failure to comply could cause
fuel unit seal failure, oil leakage and potential
fire and injury hazard.
T able 1 – Nozzle capacities at various pressures
Form 6104 BCF-35-R0699
Instruction Manual – Model CF2500/CF3500 Oil Burner
3502
E
D
G
F
T
2°
1
Firebox
pressure
(In. W.C.)
Tube KP Tube KM/KR
No
reserve
air
10%
turndown
No
reserve
air
10%
turndown
Maximum firing rate GPH
0.0 25.0 22.5 35.0 31.5
0.2 24.8 22.3 33.5 30.2
0.4 24.6 22.3 32.0 28.8
0.6 24.5 22.1 30.2 27.2
0.8 24.3 21.9 28.8 25.9
1.0 24.1 21.7 27.1 24.4
Note: 10% turndown indicates sufficient reserve air to reduce
the CO
2
in the flue to 90% of its value.
Note: The above ratings may vary 5% due to variations in actual job
conditions.
❏ Verify firing rate
• Refer to appliance manufacturer’s instructions (if available) for firing rate and nozzle selection. Otherwise, the
maximum recommended firing rate for the burner depends
on the length of the firing chamber and the distance from
the burner center to the chamber floor . Verify that the chamber dimensions are at least as large as the minimum values
given in Figure 1. If the appliance dimensions are smaller
than recommended, reduce the firing rate accordingly.
❏ Verify air tube
• The information in this section may be disregarded if the
air tube is supplied by the appliance manufacturer.
• The following tube arrangements are available:
Model CF2500A: Tube KP — 17.0 to 19.9 GPH
Model CF2500: Tube KP — 17.0 to 25.0 GPH
Model CF3500A: T ube KM — 17.0 to 35.0 GPH or
Tube KR — 17.0 to 35.0 GPH
• Maximum firing capacity depends on the firebox pressure.
Use Table 2 to verify the correct air tube type for the firing
rate required. (Tube KR [CF3500A] is an optional air tube
combination for maximum capacity rate. It requires a larger
I.D. flange No. 51631.)
• See Figure 2 to verify the correct air tube length and air
tube combination code.
Figure 1 – Min. combustion chamber dimensions
Figure 2 – Air tube mounting dimensions
E Insertion depth
G Air tube to inside of chamber
– 0.25" ± 0.125"
T Air tube length
D Tube diameter
① Install the burner with a 2° pitch as shown.
A.T.C. Codes
(A.T.C. = Air Tube Combination)
CF2500A/
CF2500
Tube KP Tube KM Tube KR
Dimensions Dimensions Dimensions
T D F T D F T D F
All — 6 ½" 3¼" All — 8" 4 ½" All — 9 ¹⁵⁄₁₆" 5 ¹⁄₈"
6¾" CF 66 KP 8" CF 80 KM — —
— — 9 ¼" CF 92 KM — —
10¼" CF 102 KP 11 ½" CF 114 KM 11 ½" CF 114 KR
13¾" CF 136 KP 15" CF 150 KM 14" CF 140 KR
17¾" CF 176 KP 19" CF 190 KM 19" CF 190 KR
CF3500A
L
A
Minimum dimensions
A L
(all boilers)
Firing rate
Form 6104 BCF-35-R0699
17 gph 10.5" 48.0"
22 gph 11.5" 58.0"
27 gph 12.5" 66.0"
32 gph 12.5" 73.0"
35 gph 13.0" 77.0"
T able 2 – Air tube capacity vs. firebox pressure
3501
5
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