Beckett CF500 Manuel D’Utilisation

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6104 BCF5 R07
Verify burner components —
Burner, Model CF500 or CF800
Air tube assembly 
Mounting fl ange kit
Oil nozzle
, per Table 1 — Only 45° to 70° solid pattern 
nozzles are recommended unless otherwise specifi ed 
by appliance manufacturer. (See specifi c  appliance 
recommendation sheet or refer to OEM Spec Guide).  Find 
the required fi ring rate in the 140 psig column (factory-set 
fuel unit pressure). Select the corresponding nozzle from 
column 1 (Rated gph @ 100 psig).
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Table 1 - Nozzle Capacities
Rated gph @  
100 psig
Pressure - Pounds per 
square inch
140
150
1.75
2.07
2.14
2.00
2.37
2.45
2.25
2.66
2.74
2.50
2.96
3.06
2.75
3.24
3.37
3.00
3.55
3.68
3.50
4.13
4.29
4.00
4.70
4.90
4.50
5.30
5.51
5.00
5.90
6.13
5.50
6.50
6.74
6.00
7.10
7.33
6.50
7.65
7.96
Firing Rate
Minimum Dimensions
(with damper)
(without damper)
A
L
A
L
1.75 to 3.00 gph
7.5”
18.0”
8.0”
19.0”
4.00 gph
8.0”
21.0”
9.5”
23.0”
5.00 gph
9.0”
23.0”
10.5”
30.0”
6.00 gph
10.0”
28.0”
11.5”
40.0”
7.00 gph
11.0”
34.0”
12.0”
46.0”
8.00 gph
14.0”
38.0”
14.0”
51.0”
Air Tube 
Length            
(Dimension T)
A.T.C. Codes
(A.T.C. = Air Tube Combination)
CF500
CF800
Tube A
Tube B
6.00”
CF 60 KK
CF 60 KH
CF 60 KJ
8.00”
CF 80 KK
CF 80 KH
CF 80 KJ
10.00”
CF 100 KK
CF 100 KH
CF 100 KJ
14.00”
CF 140 KK
CF 140 KH
CF 140 KJ
16.00”
CF160 KK
--
--
17.00”
--
CF 170 KH
CF 170 KJ
u
 Install burner with 2o pitch as shown.
u
Figure 3 - Air Tube Mounting Dimensions
Verify fi ring rate
Refer to appliance manufacturer’s instructions (if 
available) for fi ring rate and nozzle selection. Otherwise, 
the maximum recommended fi ring rate for the burner 
depends on the length of the fi ring chamber and the 
distance from the burner center to the chamber fl oor. 
Verify that the chamber dimensions are at least as large 
as the minimum values given in Figure 2. If the appliance 
dimensions are smaller than recommended, reduce the 
fi ring rate accordingly.
Verify air tube
The information in this section may be disregarded if the 
air tube is supplied by the appliance manufacturer.
Two tube arrangements are available –
  CF500
 
1.75 to 5.50 GPH
  CF800
 Tube 
A — 3.00 to 7.00 GPH 
 Tube 
B — 5.00  to 8.00 GPH 
Maximum fi ring capacity depends on the fi rebox pressure. 
Use Table 2 to verify the correct air tube type for the fi r-
ing rate required. Use Tube B only when Tube A cannot 
provide the fi ring rate required.
See Figure 3 to verify the correct air tube length and air 
tube combination code.
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Figure 2.  Min. Combustion Chamber Dimensions