Pre-installation checklist

Instruction Manual – Model CF2500/CF3500 Oil Burner

❏Combustion air supply

•The burner requires combustion air and ventilation air for reliable operation. Assure that the building and/or com- 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 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 NFPA 31 (CSA B1139- M91 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 out- side 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 di- mensions comply with all local codes and with the appli- ance manufacturer's recommendations.

❏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 litera- ture in the literature envelope in the burner carton to verify allowable suction pressure.

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 one- pipe oil system. Failure to comply could cause fuel unit seal failure, oil leakage and potential fire and injury hazard.

When fuel supply is level with or higher than burner fuel unit —

•When the fuel unit is not required to lift the oil, the instal- lation 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 two- pipe system is needed to purge the air from the fuel lines and minimize the likelihood of air-related problems dur- ing operation.

❏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 dis- connect 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 manu- facturer.

The CF2500A, CF2500 and CF3500A are dual nozzle burn- ers. 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.

Table 1 – Nozzle capacities at various pressures

Rated	Pressure - pounds per square inch
gph @
gph @	125	150	175	200	250	300
100 psig	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

4	Form 6104 BCF-35-R0699

CF 2500/ 3500 specifications

The Beckett CF 2500/3500 series represents a significant advancement in the oil burner technology, widely recognized for its high efficiency and reliability. These burners are designed for residential and light commercial applications, ensuring optimal heating performance with minimal environmental impact.

One of the standout features of the CF 2500 and 3500 models is their robust construction, which utilizes high-quality materials to enhance durability and longevity. This is particularly beneficial in demanding operational environments where the equipment may be subject to wear and tear. Both models are equipped with an advanced combustion head that promotes superior air-fuel mixing, leading to more efficient burning and lower emissions.

The combustion technology employed in these burners is centered around reliable ignition and stable flame management. The CF series features an innovative electronic control system that not only allows for precise control of the burner operation but also includes diagnostic capabilities. This ensures that maintenance can be performed efficiently, reducing downtime and service costs.

In terms of energy efficiency, the CF 2500/3500 models boast impressive ratings, making them ideal for homeowners looking to reduce energy bills while minimizing their carbon footprint. The burners can seamlessly integrate with various heating systems, providing flexibility in design and installation.

Another noteworthy characteristic is the user-friendly design, which simplifies the installation process. The compact size of the CF series allows it to fit into tight spaces while still delivering powerful performance. Moreover, the access panels for maintenance are strategically placed, enhancing technician efficiency during service calls.

Safety features are paramount in the Beckett CF series, which includes flame monitoring and flame failure response systems. These features ensure that the burner operates safely and effectively, thereby minimizing the risk of operational incidents.

In conclusion, the Beckett CF 2500 and 3500 oil burners are a blend of efficiency, ease of use, and safety. Their advanced technologies and features set a new standard in the oil burner market, making them a top choice for those seeking reliable and eco-friendly heating solutions. These units not only meet the demands of today's heating requirements but also set a path towards a more sustainable future.