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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
. If the appliance dimensions are smaller
Figure 1
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.
• Two tube arrangements are available –
Tube
A
— 4.0 to 11.0 GPH per
Tube
— 7.0 to 13.6 GPH per
B
• Maximum firing capacity depends on the firebox pressure.
Use
Table 2
to verify the correct air tube type for the firing
rate required. Use Tube
B
vide the firing rate required.
• See
to verify the correct air tube length and air
Figure 2
tube combination code.
Figure 1 - Min. Combustion chamber dimensions
L
Minimum dimensions
Firing rate
(refractory-lined)
A
0 to 5 gph
7.0"
5 to 10 gph
8.0"
Form 6104 BCF14N-R0299
Instruction Manual – Model CF1400 Oil Burner
Table 2
Table 2
only when Tube
A
cannot pro-
A
1405
(wet-base boilers)
L
A
L
25.0"
7.0"
25.0"
35.0"
8.0"
40.0"
Figure 2 - Air tube mounting dimensions
T
2°
1
G
D
E
Install the burner with a 2° pitch as shown.
Air tube
(A.T.C. = Air Tube Combination)
length
Tube A
(Dimension T)
(Dim. D = 5½")
6.75"
CF 66 KD
10.25"
CF 102 KD
13.75"
CF 136 KD
17.75"
CF 176 KD
Table 2 - Air tube capacity vs. firebox pressure
Tube A
Firebox
pressure
(In. w.c.)
10% turndown No reserve air 10% turndown
0.0
11.0 GPH
0.2
10.5 GPH
0.4
10.1 GPH
0.6
9.6 GPH
0.8
9.2 GPH
1.0
8.7 GPH
Note: 10% turndown indicates sufficient reserve air to reduce the CO
flue to 90% of its value.
Note: The above ratings may vary 5% due to variations in actual job conditions.
E Insertion depth
G Air tube to inside of chamber
– 0.25" ± 0.125"
T Air tube length
D Tube diameter
1404
A.T.C. Codes
Tube B
(Dim. D = 5¾")
CF 66 KE
CF 102 KE
CF 136 KE
CF 176 KE
Tube B
13.6 GPH
12.2 GPH
13.1 GPH
11.7 GPH
12.5 GPH
11.2 GPH
12.0 GPH
10.8 GPH
11.4 GPH
10.3 GPH
10.9 GPH
9.8 GPH
in the
2
5
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