Thermo Products CMA3-50D36N, CMC1-50DV3N, CMC1-50D36N, CMC1-75D36N, CMA3-75D36N Sidewall Venting

All installations and services must be performed by qualified service personnel.

b.The bottom edge of the vent termination elbow must be installed at least 12-inches above the outlet of intake termination elbow.

c.The horizontal distance between the inlet and exhaust terminations should be minimized, when possible, and should never exceed 24- inches.

d.The vent and intake systems should utilize the same numbers of elbows and approximately the same length of straight pipe to reach the outside termination.

Figure 8: Typical Relative Locations of Direct Vent Terminations When

Sidewall Venting

3.Exhaust Vent Terminal Location Clearance Requirements

a.The vent terminal shall be located at least 3-feet above any forced air inlet located within 10-feet. Refer to Figure 9 for a depiction of the minimum required clearances between vent terminations and building features according to the National Fuel Gas Code (NFGC).

b.The vent terminal shall be at least 12-inches below, 12-inches horizontally from, or 12-inches above, any door, window, or gravity air inlet into a building. The bottom of the vent terminal shall be located at least 12-inches above grade.

c.The vent terminal shall not be located:

•over public walkways or over an area where wetting of surfaces by condensate, or water vapor, could create a nuisance or hazard,

•near soffit vents, crawl space vents, or other areas where condensate or water vapor could create a nuisance, hazard, or cause property damage, and

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