GE JV635 - Manual (Page 7)

7
DUCTING CHART—JV5 Series Models
DUCTING CHART—JV6 Series Models
Equivalent Length in Feet
0 25 50 75 100 125 150
3 1 ⁄
4
″
x 10
″
Rectangular Transition to 6
″
Round = 4.5 ft.
7
″
Round 90° Elbow = 8 ft.
7
″
Roof Cap = 30 ft.
250
200
150
100
Air V
olume in CFM
3 1 ⁄
4
″
x 10
″
Rectangular
7
″
Round
•
•
•
•
•
•
•
•
•
Equivalent Length in Feet
0 25 50 75 100 125 150
3 1 ⁄
4
″
x 10
″
Rectangular Transition to 6
″
Round = 4.5 ft.
7
″
Round 90° Elbow = 8 ft.
7
″
Roof Cap = 30 ft.
400
350
300
250
200
Air V
olume in CFM
3 1 ⁄
4
″
x 10
″
Rectangular
7
″
Round
•
•
•
•
•
•
•
•
•
•
•
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.