Greenheck Fan QEP Ventilation Hood User Manual


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Direct drive construction offers many advantages for commercial or
industrial air handling applications.
- Reduced maintenance (no belts and shaft bearings to service)
- Compact housing design requires a smaller footprint
- Low vibration
- Suitable for clean air application (no belt or bearing residue in airstream)
Flow Control Options
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width wheel to assist in matching actual fan performance to the desired
QPJOUPGPQFSBUJPO"7'%BMMPXTUIFGBOQFSGPSNBODFUPCFBEKVTUFEUP
assist in system balancing and provides flexibility in adapting to future
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reducing energy consumption. Partial wheel widths can also be used to
attain a specific fan performance. Partial wheel widths are available in
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The charts on these pages allow for a quick estimation of the required fan
size and motor speed to achieve the desired point of operation. Colored
bands for a given size in each chart show the acceptable performance
range for the most commonly selected fan sizes at a given motor speed.
For detailed selection information, please consult our Computer Aided
Product Selection (CAPS) software.
Direct Drive
Selections
QEP Arrangement 4
Horizontal, Direct Drive
QEM Arrangement 4
Horizontal, Direct Drive
7PMVNFDGNY
4
3
2
1
0
1 5 10 50 100
15 16 18 20 22 24 27 30 33 36 40
4
3
2
1
0
1 5 10 50 100
15 16 18 20 22 24 27 30 33 36 40 44 49 54 60
Static
Pressure
(in. wg)
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Static
Pressure
(in. wg)
1425 RPM
(50 Hz)
Model QEM
4J[FT
Model QEP
4J[FT
950 RPM
(50 Hz)
Model QEM
4J[FT
Model QEP
4J[FT
Direct Drive models are not licensed to bear the AMCA Seal
12
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