Bard FLF110D60F, FLR140D60F Minimum Ventilation Openings, ALL Ventilation AIR from Outdoors

TABLE 9

MINIMUM VENTILATION OPENINGS

		Recommended
	Min. Ventilation	Opening
		(2 Required)
	Opening
Model	Square Inch	Size	Sq. In.
FH085D36F	240	8 x 16	128
FH110D48F	280	9 x 18	162
FH110D60F	280	9 x 18	162
FLF085D36F	290	8 x 19	152
FLR085D36F	290	8 x 19	152
FLF110D48F	340	9 x 19	171
FLF110D60F
FLR110D48F	340	9 x 19	171
FLR110D60F
FLR140D60F	360	9.5 x 19	180
FC085D36F	240	8 x 16	128

ALL VENTILATION AIR FROM OUTDOORS

A.The confined space shall be provided with two permanent openings, one in or near the top of the enclosure and one in or near the bottom. The openings shall communicate directly, or by means of ducts with outdoors or to such spaces (crawl or attic) that freely communicate with outdoors. (See Figures 13, 14, & 15.)

B.When directly communicating with outdoors or by means of vertical ducts, each opening shall have a free area of not less than one square inch per 4,000 BTU per hour (35 square inches per gallon per hour) of total input rating of all appliances in the enclosures. If horizontal ducts are used, each opening shall have a free area of not less than one square inch per 2,000 BTU per hour (70 square inches per gallon per hour) of total input of all appliances in the enclosure.

FIGURE 13

APPLIANCES LOCATED IN CONFINED SPACES

ALL AIR FROM OUTDOORS

NOTE: Each air duct opening shall have a free area of not less than one square inch per 2,000 BTU per hour (70 square inches per gallon per hour) of the total input rating of all appliances in the enclosure.

Manual	2100-422M
Page	28 of 42