North American 4/5/6131 Service Manual Gas Port Information Natural Gas and Heavy Oil
Sheet 6131SMH-7-1
Method for closing off gas ports in Figure 4 is not identical to Figures 1, 2, and 3
4/5/6131 SERIES BURNERS
Pipe Plug
Rectangular SST Cover
Forward Gas Ports
9 10 Rectangular SST Cover
Radial Gas Ports
8 9
8
11
7 8
7
10
6
9
6
7
5
Radial Gas Ports
7
6
4
5
Round SST Cover
5
Position No.
6
1
3
1
4
1
2
Forward Gas Ports
4
1
3 2
2
5
3 2
4 3
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Application Table
Burner frame
Furnace pressure
Porting Arrangement
Forward Ports
Radial Ports
4/5/6131
Figure
closed
closed
N & P
A
1
All
1, 2, 3
N & P
B
1
2, 4, 6
2, 4, 6
1, 5, 7 tubes
N & P
C
2
2 & 3
2, 3, 4, 6, 8, 9
CL
N
3
2, 3, 5, 6, 8,9
2, 3, 5, 6, 8, 9
2 & 3
CL
P
3
2 & 3
D
N
2 & 3
D
P
3
All
N & P
E, FA, FC
4
1, 3, 4, 6, 7, 9, 10
1, 3, 4, 6, 7, 9, 10
Furnace Pressure — P = Positive, N = Neutral or Negative
Made with FlippingBook flipbook maker