COMMERCIAL PRODUCTS Potential for Fire, Smoke and Asphyxiation Hazards Incorrect installation, adjustment, or misuse of this burner could result in death, severe personal injury, or substantial property damage. To the Homeowner or Equipment Owner: y Please read and carefully follow all instructions provided in this manual regarding your responsibilities in caring for your heating equipment. y Contact a professional, qualified service agency for installation, start-up or service work.
To the Owner: Thank you for purchasing a Beckett burner for use with your heating appliance. Please pay attention to the Safety Warnings contained within this instruction manual. Keep this manual for your records and provide it to your qualified service agency for use in professionally setting up and maintaining your oil burner. Your Beckett burner will provide years of efficient operation if it is professionally installed and maintained by a qualified service technician.
Section: General Information General Information Owner’s Responsibility: Hazard Definitions Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Indicates a hazardous situation, which, if not avoided, could result in death, or serious injury. Follow these instructions exactly. Failure to follow these instructions, misuse, or incorrect adjustment of the burner could result in asphyxiation, explosion or fire.
Section: Pre-installation Checklist Pre-installation Checklist Fuel Supply Combustion Air Supply Oil Supply Pressure Control Required Damage to the filter or pump seals could cause oil leakage and a fire hazard. Adequate Combustion and Ventilation Air Supply Required Failure to provide adequate air supply could seriously affect the burner performance and result in damage to the equipment, asphyxiation, explosion or fire hazards.
Section: Pre-installation Checklist Nozzle Pressure Electrical Supply Correct Nozzle and Flow Rate Required Incorrect nozzles and flow rates could result in impaired combustion, underfiring, over-firing, sooting, puff-back of hot gases, smoke and potential fire or asphyxiation hazards. Verify that the power connections available are correct for the burner. Refer to Figure 1. All power must be supplied through fused disconnect switches.
Section: Pre-installation Checklist Verify Air Tube Figure 2 - Dimensions: Minimum Combustion Chamber and Air Tube Mounting. * Install burner with 2° pitch as shown. The information in this section may be disregarded if the air tube is supplied by the appliance manufacturer. The following tube arrangements are available – H D ○ ○ ○ T 1/4” ± 1/8” Maximum firing capacity depends on the firebox pressure. Use Table 2 to verify the correct air tube type for the firing rate required.
Section: Mount the Burner Table 2 - Air Tube Capacity Versus Firebox Pressure Maximum Firing Rate GPH Tube CF3500A CF2500 & CF2500A Model Firebox Pressure (In W.C.) No Reserve Air 10% Turndown (GPH) 0.0 25.0 22.5 0.2 24.8 22.3 0.4 24.6 22.3 0.6 24.5 22.1 0.8 24.3 21.9 1.0 24.1 21.7 0.0 35.0 31.5 0.2 33.5 30.2 0.4 32.0 28.8 0.6 30.2 27.2 0.8 28.8 25.9 1.0 27.1 24.
Section: Mount the Burner Mount Air Tube to Burner ○ ○ Figure 5 – Nozzle and Nozzle Line Assembly Remove the rear access door from the back of the burner for improved access to the interior. Attach the air tube to the burner with the bolts and acorn nuts provided. The acorn nuts must go on the outside of the burner, with the bolts inserted from the inside. S Q P Install Nozzle See Figure 5. Install the oil nozzle in the nozzle adapter.
Section: Mount the Burner Figure 7 – Adjusting Plate Assembly d e f c Legend (Figures 6 & 7) 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 g Primary adjusting plate g Set Dimension Z Insert Burner ○ ○ Replace the rear access door on the burner, making sure that the adjusting plate assembly is now securely in the groove. Loosen acorn nut (item d) in Figure 6.
Section: Connect Fuel Lines Connect Fuel Lines Fuel Unit By-pass Plug Factory-Installed Pump Bypass Plug Failure to follow these guidelines will cause the fuel pump seals to rupture and result in oil leakage, burner malfunction and potential fire and injury hazards. y Models CF2500A/CF2500/CF3500 are shipped with the pump by-pass plug installed. Oil Supply/Return Lines ○ ○ ○ y Do not remove the by-pass plug from the pump. It is required for step-firing (Lo/Hi) operation.
Section: Connect Fuel Lines Figure 9 – One-pipe Oil Flow 200 psig to 300 psig 200 psig to 300 psig Nozzle Pressure – The fuel unit nozzle port pressure is factory set at 300 psig. Some original equipment manufacturer burner applications may call for a lower pressure to obtain a required firing rate. Do not change this pressure unless directed to do so by the appliance manufacturer.
Section: Wire the Burner Wire the Burner Electrical Shock Hazard Electrical shock can cause severe personal injury or death. 3. Trial For Ignition: The oil solenoid valve is energized. A flame should be established within the factory set trial for ignition time (lockout time). 4. Lockout: The control has shut down for one of the following safety reasons: y Disconnect electrical power before installing or servicing the burner. a.
Section: Wire the Burner Figure 11 - Typical Burner Sequence of Operation - 7505 9 1 Standby 2 Valve-on Delay 3 5 Trial for Ignition Cad Cell Resistance Measurement: Pump Prime If the Beckett 7505 control is equipped with the GeniSys Display Module, part 52067U, the cad cell resistance can be selected and read on the LCD screen. Also, the GeniSys Contractor Tool, part 52082U, can be used for this purpose.
Section: Wire the Burner Figure 13 –Typical Wiring (7505P) 14
Section: Wire the Burner Typical Burner Sequence of Operation RM7897A Control When firing over 20 GPH the CF2500 and CF3500A will be supplied with a flame safeguard control. An airflow switch and low-fire start relay will also be supplied. Consult local, state, and federal codes for burner requirements above 20GPH. Install the burner and all wiring in accordance with the National Electrical Code and all applicable local codes or requirements.
Section: Prepare the Burner for Start-up Figure 15 –Typical Wiring (RM7897A) Prepare the Burner for Start-up Professional Installation and Service Required Incorrect installation and mishandling of start-up could lead to equipment malfunction and result in asphyxiation, explosion or fire. y This burner must be installed and prepared for startup by a qualified service technician who is trained and experienced in commercial oil burner system installation and operation.
Section: Prepare the Burner for Start-up □ Combustion air supply and venting have been inspected and verified to be free of obstructions and installed in accordance with all applicable codes. □ Oil nozzle has been selected correctly and securely installed in the nozzle adapter. □ Fuel unit by-pass plug has not been installed for one-pipe oil system without a by-pass loop. Refer to Figure 9. □ By-pass plug has been installed for two-pipe oil system. □ Fuel connection to nozzle line assembly is secure.
Section: Prepare the Burner for Start-up Initial Air Settings If your burner was built for a specific OEM application, the “Mfr’s Settings” label (see Figure 1) will indicate the application and the initial air settings made at Beckett. Please verify those settings using the following procedure. If your burner was not built for a specified application, the following steps outline the procedure for initially setting the damper (these settings may be different from settings specific to a particular OEM).
Section: Prepare the Burner for Start-up Set Appliance Limit Controls ○ ○ Set the appliance limit controls in accordance with the appliance manufacturer’s recommendations. Move the low-fire hold switch (not shown) to the low fire hold position. This will hold the burner in low fire during initial start-up. Prepare the Fuel Unit for Air Venting 1. To vent air from one-pipe oil systems, attach a clear hose to the pump bleed port (item p in Figures 9 & 10) on the fuel unit.
Section: Prepare the Burner for Start-up 6. If the burner motor does not start, reset the motor overload switch (if so equipped) and press the reset switch of the burner primary control. number to reduce CO2 by 2 percentage points at a zero smoke level. (Increase O2 by 3 percentage points at a zero smoke level.) 7. Vent the fuel unit as soon as the burner motor starts rotating. To vent — Example: Reduce CO2 from 13.5% to 11.5%, with zero smoke (or increase O2 from 2.5% to 5.5%).
Section: Perform Regular Maintenance Perform Regular Maintenance Annual Professional Service Required Tampering with or making incorrect adjustments could lead to equipment malfunction and result in asphyxiation, explosion or fire. y Do not tamper with the burner or controls or make any adjustments unless you are a trained and qualified service technician. □ Inspect the combustion head and air tube. Remove any carbon or foreign matter. Replace all damaged units with exact parts.
Replacement Parts For best performance specify genuine Item Description Beckett replacement parts Description CF2500 Part No. CF3500 Part No.
Figure 18 - Burner Replacement Parts 1 10 14 2 13 3 6 12 4 5 11 7 20 8 21 22 23 9 17 16 15 Figure 19 – Adjustable Mounting Plates 19 18 Flange A Air Tube Model Flange A Flange B KP 51498 51630 KM 51498 51630 KR N/A 51631 Flange B CF2500/CF3500 Burner Manual 23
Limited Warranty Information The R. W. BECKETT CORPORATION (“Beckett”) warrants to persons who purchase its “Products” from Beckett for resale, or for incorporation into a product for resale (“Customers”), that its equipment is free from defects in material and workmanship. To qualify for warranty benefits, products must be installed by a qualified service agency in full compliance with all codes and authorities having jurisdiction, and used within the tolerances of Beckett’s defined product specifications.