Summary of the content on the page No. 1
2500/3500
MODEL MODEL MODEL MODEL MODEL
Oil
2500/
CF
Burner
CF 3500
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 for purchasing a Beckett
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 “To
the owner” inside this manual. Then, keep
the manual in a safe place where it can b
Summary of the content on the page No. 2
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 Denotes presence of a hazard which, if ignored, will result in severe personal injury, ignored, could result in severe personal injury, death or substantial property damage. death or substantial property damage. Denotes prese
Summary of the content on the page No. 3
Instruction Manual – Model CF2500/CF3500 Oil Burner Warranty Contents Beckett warrants its equipment to those who have purchased it for resale, including your dealer. If you have any problems with your Please . . . read this page first ................ 2 equipment or its installation, you should contact your dealer for assistance. Pre-installation checklist........................... 4 Specifications Mount the burner .......................................... 6 Fuels #1 or #2 Fuel Oil Firing ran
Summary of the content on the page No. 4
Instruction Manual – Model CF2500/CF3500 Oil Burner Pre-installation checklist ❏ Combustion air supply ❏ Vent system The burner requires combustion air and ventilation air for The flue gas venting system must be in good condition reliable operation. Assure that the building and/or com- and must comply with all applicable codes. bustion air openings comply with National Fire Protection Standard for Oil-Burning Equipment, NFPA 31. For appli- ance/burner units in confined spaces, the room mus
Summary of the content on the page No. 5
Instruction Manual – Model CF2500/CF3500 Oil Burner ❏ Verify firing rate Figure 2 – Air tube mounting dimensions Refer to appliance manufacturer’s instructions (if avail- E Insertion depth able) for firing rate and nozzle selection. Otherwise, the G Air tube to inside of chamber T maximum recommended firing rate for the burner depends – 0.25" ± 0.125" on the length of the firing chamber and the distance from T Air tube length 1 2° G the burner center to the chamber floor. Verify that the cham
Summary of the content on the page No. 6
Instruction Manual – Model CF2500/CF3500 Oil Burner Mount the burner Figure 4 – Nozzle and nozzle line assembly S Q ❏ Mount flange(s) on air tube This section does not apply to burners with welded flanges. Do not install air tube on burner. For non-pressure firing flange, refer to Figure 3: Install P gasket (item a) and flange (item d). Ignore the next paragraph. For pressure-firing flange, refer to Figure 3: Slide gasket Low fire High fire (item a) onto the air tube, making sure the
Summary of the content on the page No. 7
Instruction Manual – Model CF2500/CF3500 Oil Burner Figure 5 – Nozzle line assembly in burner Figure 6 – Adjusting plate assy. d e fc g Measure dimension Z from d Z front (flat) face of head to b a end of air tube, as shown. 3508 c Legend (Figures 5 and 6) a Adjusting plate assembly b Spline nut for securing nozzle line c Bottom acorn nut d Top acorn nut (for setting dim. Z only) e Indicator adjusting plate f Secondary adjusting plate 3506 g Primary adjusting plate ❏❏❏❏❏ Set dimension Z rectly
Summary of the content on the page No. 8
Instruction Manual – Model CF2500/CF3500 Oil Burner Connect fuel line(s) Install the oil lines using the following Figure 8a guidelines. Failure to comply could lead One-pipe oil flow, one nozzle, low fire, “H” pump to equipment damage and present a risk of severe personal injury, death or substan- 200 psig g tial property damage due to leakage of oil to and potential fire hazard. 300 psig c c d Use only flare fittings at joints and con- nections. Never use compression fittings. 200 psig b
Summary of the content on the page No. 9
Instruction Manual – Model CF2500/CF3500 Oil Burner Figure 9a Install two high-quality shutoff valves in accessible loca- Two-pipe oil flow, one nozzle, low fire, “H” pump tions on the oil supply line. Locate one valve close to the tank. Locate the other valve close to the burner, upstream of the fuel filter. g 200 psig to c c d 300 psig ❏ Burner fuel flow 200 psig b One-pipe systems – See Figure 8 for the fuel flow paths to a for high-fire and low-fire operation. Oil supply connects to 300
Summary of the content on the page No. 10
Instruction Manual – Model CF2500/CF3500 Oil Burner Wire the burner Do not by-pass any safety control. By-passing a safety control could result in severe personal injury, death or substantial property damage. Install the burner and all wiring in accordance with the burner, with R8184 oil primary, for reference purposes only. National Electrical Code and all applicable local codes or The CF2500/CF3500A burner is available with many different requirements. wiring configurations. Refer to the wirin
Summary of the content on the page No. 11
Instruction Manual – Model CF2500/CF3500 Oil Burner Sequence of operation — typical 1. On call for heat from the appliance operating controls (and high fire. The damper motor end switch is set to operate the circuit from T to T of the R8184 closed), power is before the damper has reached full open to assure a smooth applied to the R8184 black wire (BK). transition to high fire. 2. The R8184 applies 120 volts to the orange wire (OR), acti- 7. If a high/low-fire control is installed at H/L, this c
Summary of the content on the page No. 12
Instruction Manual – Model CF2500/CF3500 Oil Burner Prepare the burner for start-up - continued ❏ Z dimension Figure 11 – Adjusting plate initial setting, typical df e h b c g Should be set per these instructions (see page 7). The top acorn nut (Figure 11, item d) should never be loosened 3515 once the Z dimension is initially set. ❏ Adjusting plate assembly (Figure 11) Make sure spline nut (item b) and bottom acorn nut (item c) are loose. ❏ Initial head position (Figure 11) Legend The
Summary of the content on the page No. 13
12 11 10 9 CLOSE Instruction Manual – Model CF2500/CF3500 Oil Burner Figure 12 – Air damper and damper motor assembly a a b b c d d h e f g k m 3516 3517 Table 5 – Initial air adjusting plate settings Legend (Figure 12) (damper position) Approximate Firing rate, gph a Damper motor – do not adjust internal cam adjusting plate Tube “KP” Tube “KM”/“KR” b Arm assembly settings 0 -- -- c Ball joint assembly – do not adjust position of ball joint 1 8.00 8.00 9.00 9.00 2 d Damper rod 3 11.00 11.00
Summary of the content on the page No. 14
Instruction Manual – Model CF2500/CF3500 Oil Burner Start the burner Do not proceed unless all prior steps in this ❏ Place the end of the tube in a container to catch the manual have been completed. Failure to oil. Then loosen the fuel unit air vent valve. comply could result in severe personal injury, ❏ Tighten the air vent valve after all air has been purged. death or substantial property damage. ❏ IF burner stops during venting — Do not attempt to start the burner when excess The burner pri
Summary of the content on the page No. 15
Instruction Manual – Model CF2500/CF3500 Oil Burner b. Slowly rotate the air adjusting plate (increase the ❏ Set low-fire air amount of air) as the damper drives to high-fire. 1. Loosen the air adjusting plate (Figure 12, item m) screw c. Lock down air adjusting plate at the high-fire air set- and set the air adjusting plate at the low-fire air setting ting found in Table 5 for the high-fire rate. found in Table 5, page 13. The damper should stay at the 6. Use combustion test instruments to adj
Summary of the content on the page No. 16
1 12 2 11 11 10 10 9 Instruction Manual – Model CF2500/CF3500 Oil Burner Replacement parts 4 5 3 11 2 1 19 25 20 12 LO LOW F W FIIR RE E S ST TA AR RT T V VA AL LV VE E 21 OUT IN LOW FIRE HOLD 15 22 16 6 8 7 9 13 10 23 3518 14 17 18 24 Item Part name Description Part number Item Part name Description Part number Specify burner model and tube length 9 Damper linkage arm All models 5984BK 1 Air tube (See Figure 2, page 5 for codes) 10 Damper spring All models 4339 2 Flange kit Adjustable flange Se
