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// CODE SNIPPET

M1701.5 Opening Area

2010 Residential Code of NY > 17 Combustion Air > M1701 General > M1701.5 Opening Area
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The free area of each opening shall be used for determining combustion air. Unless otherwise specified by the manufacturer or determined by actual measurement, the free area shall be considered 50 percent of the gross area for metal louvers and 25 percent of the gross area for wood louvers. Nonmotorized louvers and grills shall be fixed in the open position. Motorized louvers shall be interlocked with the equipment so that they are proven to be in the full open position, by use of a blade position switch, prior to burnr ignition and during burner operation. Means shall be provided to prevent the burner from igniting if the louvers fail to open during burner start-up and to shut down the burner if the louvers close during operation.

Related Code Sections


M1701.5 Combustion Air, Opening Area
The free area of each opening shall be used for determining combustion air. Unless otherwise specified by the manufacturer or determined by actual ...
2010 Residential Code of NY > 17 Combustion Air > M1701 General > M1701.5 Opening Area
R310.1.1 Building Planning, Minimum Opening Area
All emergency escape and rescue openings shall have a minimum net clear opening of 5.7 square feet (0.530 m2). Exception: Grade floor openings ...
2010 Residential Code of NY > 3 Building Planning > R310 Emergency Escape and Rescue Openings > R310.1 Emergency Escape and Rescue Required > R310.1.1 Minimum Opening Area
R310.2.1 Building Planning, Minimum Opening Area
openings or below-grade openings shall have a net clear opening area of not less than 5 square feet (0.465 m2) ...
2020 Residential Code of New York State > 3 Building Planning > R310 Emergency Escape and Rescue Openings > R310.2 Emergency Escape and Rescue Openings > R310.2.1 Minimum Opening Area
R310.2.1 Building Planning, Minimum Opening Area
Emergency and escape rescue openings shall have a net clear opening of not less than 5.7 square feet (0.530 m2). The net clear opening dimensions ...
Residential Code 2015 of New York State > 3 Building Planning > R310 Emergency Escape and Rescue Openings > R310.2 Emergency Escape and Rescue Openings > R310.2.1 Minimum Opening Area
Section 634 Specific Appliances, Chimney Damper Opening Area
equal to or greater than specified in Table 634.1. TABLE 634.1 FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING FLUE GASES FROM UNLISTED DECORATIVE ...
2020 Fuel Gas Code of NYS > 6 Specific Appliances > 634 Chimney Damper Opening Area
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