Cooling Power vs. Airflow and Duct Sizes
Typical relations between cooling power (tons cooling), air flow and duct size
Typical values for tons cooling vs. air flow and duct sizes are indicated below:
| Cooling Power (ton) | Typical Air Flow (cfm) | Typical Duct Size (in) | ||
|---|---|---|---|---|
| Circular | Rectangular | |||
| 100 | 6 | 5 x 6 | 4 x 8 | |
| 1/2 | 200 | 8 | 6 x 8 | 4 x 12 |
| 3/4 | 300 | 9 | 10 x 7 | 5 x 14 |
| 1 | 400 | 10 | 8×10 | 6 x 14 |
| 1 1/2 | 600 | 12 | 10 x 12 | 8 x 14 |
| 2 | 800 | 13 | 10 x 14 | 8 x 18 |
| 2 1/2 | 1000 | 14 | 10 x 16 | 12 x 14 |
| 3 | 1200 | 16 | 10 x 20 | 12 x 16 |
| 3 1/2 | 1400 | 16 | 12 x 18 | 10 x 20 |
| 4 | 1600 | 18 | 14 x 16 | 12 x 20 |
