SECTION 3: CRITICAL CONSIDERATIONS
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2.Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect.
FIGURE 5: |
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| Model | A | B | C | D | A | B | C | D |
| A | 6 | 35 | 63 | 30 | 16 | 89 | 161 | 77 | |
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| 6 | 38 | 69 | 37 | 16 | 97 | 176 | 94 | |
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| 6 | 40 | 76 | 39 | 16 | 102 | 194 | 100 | |
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C | 6 | 46 | 79 | 43 | 16 | 117 | 201 | 110 | ||
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| 6 | 50 | 84 | 47 | 16 | 127 | 214 | 120 | |
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| 8 | 54 | 87 | 51 | 21 | 138 | 221 | 130 | |
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| 8 | 54 | 87 | 51 | 21 | 138 | 221 | 130 | |
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FIGURE 6: U-TUBE, 45°
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| Model | A | B | C | D | A | B | C | D |
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| 8 | 8 | 60 | 42 | 21 | 21 | 153 | 107 | ||||
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| D |
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| 8 | 8 | 66 | 46 | 21 | 21 | 168 | 117 | |||
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| 8 | 8 | 74 | 52 | 21 | 21 | 188 | 133 | ||
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| 8 | 8 | 78 | 61 | 21 | 21 | 199 | 155 | |
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| 8 | 8 | 84 | 66 | 21 | 21 | 214 | 168 | |
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| 8 | 8 | 85 | 70 | 21 | 21 | 216 | 178 | |
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| 8 | 8 | 85 | 70 | 21 | 21 | 216 | 178 | |
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FIGURE 7: |
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| Model | A | B | C | D | A | B | C | D |
| A | 8 | 54 | 60 | 22 | 21 | 138 | 153 | 56 | |
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| 8 | 60 | 66 | 22 | 21 | 153 | 168 | 56 | |
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| 10 | 64 | 74 | 22 | 26 | 163 | 188 | 56 | |
B | C | D |
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| 10 | 70 | 78 | 22 | 26 | 178 | 199 | 56 | ||
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12 | 74 | 84 | 22 | 31 | 188 | 214 | 56 | |
12 | 76 | 85 | 22 | 31 | 194 | 216 | 56 | |
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12 | 76 | 85 | 22 | 31 | 194 | 216 | 56 | |
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5