300 Series Forward Curved Roof Exhauster
SKU#:
300 SERIES
For economical use in schools, hospitals, high rise apartments and many other commercial & industrial applications where quiet operation is required.
- Square base allows discharge to be oriented in any of 4 directions.
- Back draft damper and bird screen included.
- Heavy duty ball bearings suitable for -65º to +250º F.
- Cabinet insulated with 1/2” fiberglass insulation.
- Low operating RPM of forward curved blowers results in low noise levels.
- Quiet operation. Blower is mounted on heavy steel angle with rubber isolators.
- Attractive green baked powder coat finish.
- Automatic gravity back draft damper and bird screen are included.
- Motor receives the cooling benefits of being in the air stream for increased motor life.
- Recessed base ensures weather proof mounting to curb.
| TYPICAL MAXIMUM CFM @ SP | ||||||||||||||||||||||
| MODEL | 1/2” SP | 1” SP | 1 1/2” SP | 2" SP | 2 1/2" SP | Min HP | Max HP | |||||||||||||||
| CFM | BHP | FEI | FEPact (Kw) | CFM | BHP | FEI | FEPact (Kw) | CFM | BHP | FEI | FEPact (Kw) | CFM | BHP | FEI | FEPact (Kw) | CFM | BHP | FEI | FEPact (Kw) | |||
| 307 | 1200 | 0.73 | 0.52 | 0.74 | 1100 | 0.71 | 0.73 | 0.72 | 900 | 0.66 | 0.89 | 0.67 | 700 | 0.69 | 0.88 | 0.70 | 500 | 0.73 | 0.81 | 0.74 | 1/4 | 3/4 |
| 309 | 1800 | 0.71 | 0.72 | 0.72 | 1600 | 0.75 | 0.92 | 0.76 | 1300 | 0.71 | 1.08 | 0.72 | 1000 | 0.73 | 1.07 | 0.74 | 700 | 0.73 | 0.99 | 0.74 | 1/4 | 3/4 |
| 310 | 2800 | 1.44 | 0.54 | 1.37 | 2500 | 1.43 | 0.73 | 1.36 | 2200 | 1.41 | 0.88 | 1.34 | 2000 | 1.5 | 0.95 | 1.42 | 1600 | 1.5 | 0.94 | 1.42 | 1/4 | 1 1/2 |
| 312 | 3700 | 1.88 | 0.53 | 1.74 | 3300 | 1.94 | 0.70 | 1.80 | 2900 | 1.92 | 0.83 | 1.78 | 2500 | 1.93 | 0.91 | 1.79 | 1700 | 1.94 | 0.78 | 1.80 | 1/4 | 2 |
| 315 | 5700 | 2.98 | 0.50 | 2.68 | 5200 | 2.99 | 0.69 | 2.69 | 4600 | 2.9 | 0.84 | 2.61 | 4100 | 2.94 | 0.94 | 2.65 | 3400 | 2.97 | 0.94 | 2.67 | 1/2 | 3 |
| 318 | 8800 | 4.9 | 0.46 | 4.29 | 8100 | 4.96 | 0.63 | 4.34 | 7300 | 4.88 | 0.78 | 4.27 | 6700 | 4.92 | 0.90 | 4.31 | 5900 | 4.93 | 0.95 | 4.32 | 1/2 | 5 |
| CFM values listed are summarized for convenience. For full performance data refer to our Delair program. | ||||||||||||||||||||||
| Power rating (BHP) does not include transmission losses. Performance certified is for installation type B: Free inlet, Ducted outlet. Performance ratings do not include the effect of appurtenances (accessories). | ||||||||||||||||||||||
| For expanded FEI data click here. | ||||||||||||||||||||||
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| *D is an inside dimension. Curb size must be smaller to allow for flashing. | ||||||
| MODEL | A | B | C | * D INSIDE | SHAFT DIAMETER | WEIGHT (lbs) without motor |
| 307 | 20 3/8" | 16 5/8" | 9" | 20" | 3/4" | 45 |
| 309 | 24 3/8" | 19 3/8" | 10 5/8" | 24" | 3/4" | 63 |
| 310 | 28 3/8" | 21 3/8" | 11 3/8" | 28" | 3/4" | 88 |
| 312 | 32 3/8" | 24 5/8" | 13 1/8" | 32" | 3/4" | 113 |
| 315 | 36 3/8" | 28 3/8" | 14 7/8" | 36" | 1" | 156 |
| 318 | 40 3/8" | 33 3/4" | 17 3/8" | 40" | 1" | 224 |