Top Vent - Horizontal Termination
One Elbow
H1
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| V1 Minimum | H1 Maximum | |||
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| Elbow only | 2 ft | 610 mm | ||
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| 1/2 ft. |
| 152 mm | 6 ft. | 1.8 m |
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| 1 ft. |
| 305 mm | 11 ft. | 3.4 m |
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| 457 mm | 18 ft. | 5.5 m | |
V1 | 2 ft. |
| 610 mm | 25 ft. | 7.6 m | ||
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| V1 | + H1 = 40 ft. (12.2 m) Maximum | |||
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| H1 = 25 ft. (7.6 m) Maximum | |||
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| Note: For corner installations: A 6 inch (152 | ||||
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| mm) section of straight pipe may need to | ||||
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| be attached to the appliance before a 90º | ||||
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| elbow, to allow the vent pipe to clear the top | ||||
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| standoffs. |
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Figure 7.4
Two Elbows
H2
Note: For corner installations: A 6 inch (152 mm) section of straight pipe may need to be attached to the appliance before a 90º elbow, to allow the vent pipe to clear the top standoffs.
V1
H1
V1 Minimum | H1 + H2 Maximum | ||
Elbow only | 2 ft | 610 mm | |
1/2 ft. | 152 mm | 6 ft. | 1.8 m |
1 ft. | 305 mm | 11 ft. | 3.4 m |
457 mm | 18 ft. | 5.5 m | |
2 ft. | 610 mm | 25 ft. | 7.6 m |
V1 + H1 + H2 = 40 ft. (12.2 m) Maximum
H1 + H2 = 25 ft. (7.6 m) Maximum
Figure 7.5
INSTALLED
HORIZONTALLY
28 | Heatilator • |