PerformancePage Header Manual Guide
How to use this performance manual
The performance pages contains information in metric and english units. These are color coded with motor power frequency and motor speed for easy and quick reference in finding air performance, power requirements, and sound information. See back cover for selection example.
1Model size and hub
| diameter | AX |
|
|
|
|
|
|
| ||||||
2 | Total Pressure Axis |
|
|
|
|
|
|
| |||||||
|
|
| 1 |
|
|
|
|
|
|
|
|
|
| ||
| in Pascals (Pa) and |
|
|
|
|
|
| 11 |
|
|
|
|
|
| |
|
|
|
|
|
|
|
| Impeller Diameter = 12.25 inches (311 mm) |
|
| |||||
| Inches Water Gauge |
|
|
|
|
|
|
|
| Outlet Velocity | ft/min = cfm / 0.82 |
|
| ||
| (in. wg) | 2 |
| Total |
|
|
|
| m/s = m³/s / 0.08 |
|
| ||||
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
| Pressure |
|
|
|
| Tip Speed |
|
|
| ||||
3 | Static Pressure |
|
|
| 7 |
| ft/min = rpm X 3.20 |
|
| ||||||
|
|
|
|
|
|
|
|
| m/s = rpm X 0.98 |
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
| |||
| - Lines of constant |
|
|
|
|
|
|
|
| 65 |
|
|
|
| 3 |
| static pressure |
|
|
|
|
|
|
|
|
| 67 |
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
| 68 |
|
|
|
|
|
|
| |
4 | Color coded power |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| 8 |
|
|
|
| ||
| frequency and motor |
|
|
|
|
|
|
|
|
|
| 67 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
| speed (rpm)/poles |
|
|
|
|
|
|
|
|
|
| 66 |
|
|
|
5 | Volume - Axis |
|
|
|
|
|
| 68 |
|
|
|
|
| 68 |
|
| displays two different |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
| units of measure |
|
|
|
|
|
|
|
|
|
|
| 67 |
|
|
| for each power |
|
|
|
|
|
|
|
|
|
|
| 6 |
|
|
| frequency and motor |
|
|
|
|
|
|
|
| 69 |
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
| speed. |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
6 | Blade pitch - |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Shown in 5 degree |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| increments, integral |
|
|
|
|
|
|
|
|
|
|
|
|
| 5 |
| pitches are available | 4 |
|
|
|
|
|
|
|
|
|
|
|
| |
| between the |
|
|
|
|
|
|
|
|
|
|
|
|
| |
| displayed limits. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7 | Sound power (LwA) | Air density = 0.075 lbs/ft³ |
|
|
|
|
| Volume |
|
|
| ||||
| - Color coded sound |
|
|
|
|
|
|
|
| ||||||
|
| Air density = 1.2 kg/m³ |
|
|
|
|
|
|
|
|
|
| |||
| power level levels | 9 |
|
|
|
|
|
|
|
|
|
| 10 |
|
|
| are displayed as |
|
|
|
|
|
|
|
|
|
|
|
| ||
| a percentage of |
|
|
|
|
|
|
|
|
|
|
| Sound Power | ||
| Peak Absorbed Power [Bhp/kW (60 Hz), kW (50 Hz)] |
|
|
|
|
| Sound Pressure [dBA] |
| |||||||
| peak power; 100%, |
|
|
|
|
| Pitch Angle º |
|
|
|
| Inlet Sound |
| ||
|
| rpm |
| 5 | 10 | 15 | 20 |
| 25 | 30 | 35 | rpm | LwA | dBA | |
| 50% and 0%. Use | 3500 (Bhp/kW) | 0.19/0.14 | 0.30/0.22 | 0.43/0.32 | 0.56/0.42 | 0.71/0.53 | 0.88/0.66 | 1.07/0.80 | 3500 | +20 | +8.5 | |||
| 1770 (Bhp/kW) | 0.03/0.02 | 0.04/0.03 | 0.06/0.04 | 0.07/0.05 | 0.09/0.07 | 0.11/0.09 | 0.14/0.10 | 1770 | - | |||||
| corrections in the | 2900 (kW) |
| 0.08 | 0.13 | 0.18 | 0.24 | 0.30 | 0.37 | 0.45 | 2900 | +13 | +1.5 | ||
| sound power table to | 1450 (kW) |
| 0.01 | 0.02 | 0.02 | 0.03 | 0.04 | 0.05 | 0.06 | 1450 |
| |||
| Performance shown is for installation Type B: Free inlet, Ducted outlet. Performance ratings do not include the effects of appurtenances in the airstream. The AMCA Certified Ratings | ||||||||||||||
| find corresponding | Seal applies to air performance ratings only. |
|
|
|
|
|
|
|
|
| ||||
| Sound power level ratings are shown in decibels, referred to | ||||||||||||||
| LwA and dBA levels | 0% of peak pressure in Installation Type B: Free inlet, Ducted outlet. dBA sound pressure values are weighted with 11.5 dB attenuation for each octave band at 5 feet. |
| ||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
| for a specific power |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| frequency and motor speed. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8Total Efficiency curves - Curves show total efficiency levels at different performance points. Those curves do not reflect static efficiency levels.
9Peak Absorbed Power table - Table displays the maximum power required by pitch angle and motor rpm. Values provided are in brake horse power and kilowatts.
10Sound Power and Sound Pressure table - Table displays the corrections required by motor rpm.
11Outlet Velocity and Tip Speed formulas - For deriving outlet velocity, use either cfm or m³/s in the appropriate Outlet Velocity equation. Tip speed equation is only dependent on motor rpm.
