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Table A: Basic Data
Table B: Manifold Data
Model
No.
Quantity of Vent Size (in.)
Burners Gas Valves Blowers Flue Intake
399B 8 1 1 6 6
499B 10 2 1 6 6
649B 13 2 1 8 6
749B 15 2 1 8 6
899B 18 3 1 8 6
989B 11 2 2 10 10
1259B 14 3 2 12 10
1529B 17 4 2 12 10
1799B 20 4 2 14 10
1999B 23 5 3 14 10
2069B 23 5 3 14 10
2339B 26 5 3 16 10
Model
No.
Burners per Valve Stages % Fire at Stage
1 1A 2 3 4 1 2 3 4 1 2 3 4
399B 8 1 100
499B 5 5 1 1, 2 50 100
649B 7 6 1 1, 2 54 100
749B 8 7 1 1, 2 53 100
899B 6 6 6 1, 2 1, 2, 3 66 100
989B 6 5 1 1, 2 54 100
1259B 5 3 6 1 1, 2 1, 2, 3 36 57 100
1529B 6 4 4 3 1 1, 2 1, 2, 3 1, 2, 3, 4 35 59 82 100
1799B 6 4 5 5 1 1, 2 1, 2, 3 1, 2, 3, 4 30 50 75 100
1999B 4 5 5 5 4 1, 1A 1, 1A, 2 1, 1A, 2, 3 1, 1A, 2, 3, 4 39 61 83 100
2069B 4 5 5 5 4 1, 1A 1, 1A, 2 1, 1A, 2, 3 1, 1A, 2, 3, 4 39 61 83 100
2339B 5 6 5 5 5 1, 1A 1, 1A, 2 1, 1A, 2, 3 1, 1A, 2, 3, 4 42 62 81 100
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