Beckett CF1000 Manuel D’Utilisation

Form 6104 BCF10-R06

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 Protec-
tion Standard for Oil-Burning Equipment, NFPA 31. For 
appliance/burner units in confi ned spaces, the room must 
have an air opening near the top of the room plus one near 
the fl oor, 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 pres-
sure 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 literature in 
the literature envelope in the burner carton to verify allow-
able suction pressure.

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If fuel supply is level with or higher than 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.

If fuel supply is below the fuel unit —

Use a two-pipe oil system when the fuel unit must lift the 
oil more than 8 feet if burner is equipped with a B fuel unit, 
or more than 2 feet if burner is equipped with an H fuel 
unit. 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 during operation.

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The oil supply inlet pressure to the fuel unit cannot ex-
ceed 3 psig. 
Do NOT install valves in return line.
Ensure that a pressure-limiting device is installed in ac-
cordance with the latest edition of the NFPA 31.

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Nozzle pressure

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Rated 

gph 

@  100 

psig

Pressure - pounds per square inch

125 150 175 200 250

275

300

2.24

2.45

2.65

2.83

3.16

3.32

3.46

2.52

2.76

2.98

3.18

3.56

3.73

3.90

2.80

3.06

3.31

3.54

3.95

4.15

4.33

3.07

3.37

3.64

3.90

4.35

4.56

4.76

3.35

3.67

3.97

4.24

4.74

4.97

5.20

3.91

4.29

4.63

4.95

5.53

5.80

6.06

4.47

4.90

5.29

5.66

6.32

6.63

6.93

5.04

5.51

5.95

6.36

7.11

7.46

7.79

5.59

6.12

6.61

7.07

7.91

8.29

8.66

6.15

6.74

7.28

7.78

8.70

9.12

9.53

6.71

7.35

7.94

8.49

9.49

9.95

10.39

7.27

7.96

8.60

9.19

10.28

10.78

11.26

7.83

8.57

9.26

9.90

11.07

11.61

12.12

8.39

9.19

9.92

10.61

11.86

12.44

12.99

8.94

9.80

10.58 11.31

12.65

13.27

13.86

Use only nozzles having the brand, fl ow rate (gph), spray 
angle and pattern specifi ed by the appliance manufac-
turer. 

Follow the appliance manufacturer’s specifi cations for 
the required pump outlet pressure for the nozzle, since 
this affects the fl ow rate. 

Nozzle manufacturers calibrate nozzle fl ow rates at 100 
psig.
This burner utilizes pressures higher than 100 psig, so 
the actual nozzle fl ow rate will be greater than the gph 
stamped on the nozzle body. (Example: A 5.00 gph noz-
zle at 150 psig = 6.12 gph and at 300 psig = 8.66 gph)

For typical nozzle fl ow rates at various pressures see ac-
companying chart.

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