SECTION 7: VENTING
SECTION 7: VENTING
WARNING
Carbon Monoxide Hazard
Pump must be vented to the outside.
Heaters must be installed according to the installation manual.
Failure to follow these instructions can result in death or injury.
7.1 General Venting Requirements
Install the venting in accordance with the require- ments within this manual and the National Fuel Gas Code, ANSI
7.2 Venting the Pump
•The exhaust connection from the pump is 4.5"
(11 cm) diameter.
•Connect one of the flexible isolation boots pro- vided to the 4" (10 cm) flue pipe, using the sili- cone rubber ring provided.
•Connections to flue pipe larger than 4" (10 cm) require use of an appropriate "taper pattern reducer" (not supplied).
•Venting from the pump may discharge either hori- zontally or vertically. Horizontal discharge is preferred. See Page 14, Figure 13. Vertical dis- charge must be arranged as shown on Page 15, Figure 14. Corrosion resistant pipe is required.
•Both horizontal and vertical venting must be sup- ported by suitable hangers.
•Vent lengths are allowed as follows:
VENT LENGTH | VENT SIZE |
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|
Up To 10' (3 m) | 4" (10 cm) vent - 1 elbow |
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Up To 25' (8 m) | 5" (12.5 cm) vent - 3 elbow |
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Up To 50' (15 m) | 6" (15 cm) vent - 3 elbow |
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|
7.3 Horizontal Venting
The vent material must be either porcelain coated tubing 4" (10 cm) O.D. (P/N 9141030D), heat treated aluminized tubing 4" (10 cm) O.D. (P/N 91409408), heat treated aluminized tubing 6"(15 cm) O.D. (P/N E0009105) or single wall flue pipe minimum 26 Ga. Vent length be limited to less than 30' (9 m). If using vent lengths greater than 30' (9 m), condensation will form in the vent pipe. Insulation and additional seal- ing measures will be required.
7.3.1 Horizontal Venting Guidelines
•Vent must exit building not less than 7' (2 m) above grade when located adjacent to public walkways.
•Vent must terminate at least 3' (1 m) above any forced air inlet located within 10' (3 m).
•Vent must terminate at least 4' (1.2 m) below 4' (1.2 m) horizontally from or 12" (30 cm) above any door, window or gravity air inlet into building.
•Locate vent terminal at least 12" (30 cm) from any opening through which vent gases could enter a building.
•Use only corrosion resistant materials for the discharge line from the pump to the point of discharge.
•Vent terminal opening must extend beyond any combustible overhang.
•Install vent terminal at a height sufficient to pre- vent blockage by snow.
•Protect building materials from degradation by flue gases.
•Any portion of flue pipe passing through a com- bustible wall must be dual insulated and an approved thimble must be used.
7.3.2 Side Wall Venting
Vent recommendations in order of preferred use:
1.Porcelain coated tubing 4" (10 cm) O.D. (P/N 9141030D)
2.Heat treated aluminized tubing 4" (10 cm) O.D. (P/N 91409408)
Heat treated aluminized tubing 6" (15 cm) O.D. (P/N E0009105)
3.Single wall flue pipe - minimum 26 ga.
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