GE JV535 - Manual (Page 7)

7
3 1 ⁄
4
″ x 10″ Rectangular Transition to 6″ Round = 4.5 ft.
7
″ Round 90° Elbow = 8 ft.
7
″ Roof Cap = 30 ft.
Follow the guidelines for proper duct sizing in the ducting charts.
Installation Instructions
MAXIMUM DUCT LENGTH: For satisfactory air movement, the total duct length of a 3 1 ⁄
4
″ x 10″ rectangular,
6
″ or 7″ diameter round duct should not exceed 65 equivalent feet.
DUCTING CHART—JV5 Series Models
0 25 50 75 100 125 150 175
Equivalent Length (feet)
300
250
200
150
Air V
olume (CFM)
3 1 ⁄
4
″ x 10″
Rectangular
7 ″ Round
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DUCTING CHART—JV6 Series Models
0 25 50 75 100 125 150
Equivalent Length (feet)
450
400
350
300
250
200
Air V
olume (CFM)
3 1 ⁄
4
″ x 10″
Rectangular
7 ″ Round •
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