Installation Instructions
Follow the guidelines for proper duct sizing in the ducting charts.
DUCTING CHART–JV5 Series Models
Equivalent Length in Feet
| 0 | 25 | 50 | 75 | 100 | 125 | 150 |
| 250 | • |
|
|
|
|
|
in CFM |
| • |
|
|
|
| |
200 | • | • |
|
|
| ||
• | • | 7″ Round |
| ||||
Volume |
|
| • |
| |||
|
|
|
|
| |||
150 |
|
| 31⁄4″ x 10″ | • | • | • | |
|
|
| |||||
Air |
|
|
| Rectangular |
|
| |
100 |
|
|
|
|
|
| |
|
|
|
|
|
|
| |
| 31⁄4″ x 10″ Rectangular Transition to 6″ Round = 4.5 ft. |
|
|
|
| ||
| 7″ Round 90° Elbow = 8 ft. |
|
|
|
|
| |
| 7″ Roof Cap = 30 ft. |
|
|
|
|
| |
DUCTING |
|
|
|
| |||
|
|
| Equivalent Length in Feet |
|
|
| |
| 0 | 25 | 50 | 75 | 100 | 125 | 150 |
| 400 |
|
|
|
|
|
|
| 350 |
| • | • |
|
|
|
CFM |
| • | • | 7″ Round |
| ||
|
|
|
| ||||
|
|
| • |
| |||
in | 300 |
|
| • |
| • | |
Volume |
|
| • |
| |||
|
|
|
| • |
| ||
250 |
|
|
|
|
| ||
Air |
|
|
|
| • | ||
|
|
|
|
| 31⁄4″ x 10″ | ||
|
|
|
|
|
| ||
| 200 |
|
|
|
| Rectangular |
|
|
|
|
|
|
|
| |
| 31⁄4″ x 10″ Rectangular Transition to 6″ Round = 4.5 ft. |
|
|
|
| ||
| 7″ Round 90° Elbow = 8 ft. |
|
|
|
|
| |
| 7″ Roof Cap = 30 ft. |
|
|
|
|
| |
MAXIMUM DUCT LENGTH: For satisfactory air movement, the total duct length of a 31⁄4″ x 10″ rectangular, 6″ or 7″ diameter round duct should not exceed 65 equivalent feet.
7
