5
Form 6104 BCF5-R0301
Instruction Manual – Model CF500/CF800 Oil Burner
❏ Verify firing rate
• Refer to appliance manufacturer’s instructions (if avail-
able) for firing rate and nozzle selection. Otherwise, the
maximum recommended firing rate for the burner depends
on the length of the firing chamber and the distance from
the burner center to the chamber floor. Verify that the cham-
ber dimensions are at least as large as the minimum values
given in Figure 1. If the appliance dimensions are smaller
than recommended, reduce the firing rate accordingly.
❏ Verify air tube
• The information in this section may be disregarded if the
air tube is supplied by the appliance manufacturer.
• Tube arrangements available:
CF500: 1.75 to 5.50 GPH
CF800: A Tube — 3.00 to 7.00 GPH
B Tube — 5.00 to 8.00 GPH
• Maximum firing capacity depends on the firebox pressure.
Use Table 2 to verify the correct air tube for the firing rate
required.
• See Figure 2 to verify the correct air tube length and air
tube combination code.
Figure 1 - Min. Combustion chamber dimensions
Firing rate
GPH
Minimum dimensions (inches)
With damper Without damper
A L A L
1.75 to 3.00 7.5 18.0 8.0 19.0
4.00 8.0 21.0 9.5 23.0
5.00 9.0 23.0 10.5 30.0
6.00 10.0 28.0 11.5 40.0
7.00 11.0 34.0 12.0 46.0
8.00 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 ATube 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" CF 160 KK -- --
17.00" -- CF 170 KH CF 170 KJ
Figure 2 - Air tube mounting dimensions
Table 2 - Air tube capacity vs. firebox pressure
Firebox
pressure
(In. w.c.)
CF500 CF800
Tube KK
(GPH)
Tube KH
(GPH)
Tube KJ
(GPH)
No reserve air
0.0 5.50 7.00 8.00
0.1 4.75 6.25 7.50
0.2 4.00 5.50 6.75
0.3 3.50 4.50 6.25
0.4 2.75 3.75 5.50
0.5 2.00 3.00 5.00
Note: The above ratings may vary 5% due to variations in
actual job conditions.