GE JN327, JV327, JV337, JV347 installation instructions 14.5

FIGURE 7a

Models JV337, JV347

Model JV347 ducted installation: Use the reusable metal grease filter (WB02X8391). Remove the baffle from the top of the hood. Re-install the baffle so the short side marked “VENTED” is visible. The long side of the baffle should be inside the hood.

The hood has been designed to mate with a standard 31⁄4″ x 10″ rectangular or 7″ diameter round duct.

Rectangular Duct See Figs. 5, 6 & 10: The exhaust outlet can be installed as either the top or rear by removing the desired rectangular knockout. A rectangular damper is supplied with the hood.

Round Duct See Figs. 4 & 9: If round duct is desired, either of the following methods must be used:

1.Install a 4″ minimum length of rectangular duct between the hood and adapter to obtain proper operating of the outlet damper, or

2.Remove the round knockout on the top of the hood. Drill an appropriate size hole in each of the three tabs.

Using pliers, bend the three tabs perpendicular to the hood top. Insert the first piece of 7″ diameter duct so the tabs are outside of the duct. Mark on the duct the locations of the holes in the tabs. Drill the appropriate size hole and, using screws, fasten the duct.

CAUTION: If rear or horizontal exhaust is to be used, care should be taken to align exhaust with space between 2 studs, or wall should be prepared at the time it is constructed, by leaving enough space between wall studs to accommodate exhaust.

MAXIMUM DUCT LENGTH: For satisfactory air movement (CFM) the total duct length should not exceed

65 equivalent feet of 31⁄4″ x 10″ rectangular duct. Equivalent feet are defined as total feet straight duct plus equivalent feet of elbows, transitions, wall caps, etc. Figure 7a shows the approximate equivalent feet of some typical round (6″ dia.) duct elements and rectangular (31⁄4″ x 10″) duct elements.

		Equivalent length in feet
in CFM	0	25	50	75	100	125
	200					6″ Dia.
	150
volume		31⁄4″ x 10″
	100
	50
Air	0

FIGURE 7b

			Total
	Equivalent	Number	Equivalent
Duct Pieces	Length	Used	Length
6″ round,	5
straight		feet
31⁄4″ x 10″	2.5
straight		feet
6″	8
90° elbow
6″	6.5
45° elbow
31⁄4″ x 10″	8.5
90° elbow
31⁄4″ x 10″	7
45° elbow
31⁄4″ x 10″	24
90° flat elbow
6″ round
to 31⁄4″ x 10″	5.5
transition
31⁄4″ x 10″
to 6″ round	4.5
transition
6″ round to
31⁄4″ x 10″
transition	14.5
90° elbow
31⁄4″ x 10″ to
6″ round
transition	11.5
90° elbow
6″ round	34
wall cap	6 w/o
with damper	damper
31⁄4″ x 10″	45
wall cap	7 w/o
with damper	damper
6″ round	30
roof cap

*To order call: your local GE dealer, GE Service & Parts Center (see the telephone white pages) or the GE Answer Center, 1-800-626-2000.

Flush or recessed bottom cabinet Flush or recessed bottom cabinet Flush or recessed bottom cabinet

											Cabinet
											flush with
		Center line									top of
	7″ dia.								Cutout		opening
											in wall.
	duct								for top
								37⁄8″
Center	cutout								exhaust	Center line	4″
	51⁄4″
line			5	1	⁄4	″	51⁄4″			FIGURE 6 51⁄4″ 51⁄4″	Cutout for rear
FIGURE 4		FIGURE 5						3⁄8″

exhaust

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