Two Elbows
V2
H1
Figure 7.9
Three Elbows
V2
H2
V1 Minimum | H Maximum | V2 | V1 + V2 Min. | ||
1 ft. | 305 mm | 2 ft. | 610 mm | * | * |
2 ft. | 610 mm | 3 ft. | 914 mm | * | * |
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3 ft. | 915 mm | 5 ft. | 1.5 m | * | * |
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4 ft. | 1.2 m | 7 ft. | 2.1 m | * | * |
5 ft. | 1.5 m | 15 ft. | 4.6 m | * | * |
H Max. =15 ft. (4.6 m)
V1 + V2 + H Max. = 40 ft. (12.2 m)
* No specific restrictions on this value EXCEPT V1 + V2 + H cannot exceed 40 ft. (12.2 m)
Note: A section of vertical pipe (12 inches minimum)
MUST be installed prior to attaching a 90° elbow.
V1
V1 Minimum | H Maximum | V2 | V1 + V2 Min. | ||
1 ft. | 305 mm | 1 ft. | 305 mm | * | * |
2 ft. | 610 mm | 2 ft. | 610 mm | * | * |
3 ft. | 915 mm | 4 ft. | 1.2 m | * | * |
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4 ft. | 1.2 m | 6 ft. | 1.8 m | * | * |
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5 ft. | 1.5 m | 14 ft. | 4.3 m | * | * |
H MAX. =14 ft. (4.6 m)
V1 + V2 + H1 + H2 MAX. = 40 ft. (12.2 m)
* No specific restrictions on this value EXCEPT V1 + V2 + H1 + H2 cannot exceed 40 ft. (12.2 m)
Note: A section of vertical pipe (12 inches minimum)
MUST be installed prior to attaching a 90° elbow.
H1
V1
INSTALLED
HORIZONTALLY
Figure 7.10
30 | Heat & Glo • |