Greenheck Fan manual Quiet & Efficient Plenum Fans, Advantages of the QEM vs. QEP

Quiet & Efficient

Plenum Fans

Models QEM and QEP plenum fans are designed and engineered to provide superior performance and reliability in commercial or industrial applications. Our products are manufactured with

state of the art laser, forming, spinning and welding equipment and endure our quality control testing to ensure trouble free start-up.

Plenum fans are designed to handle a variety of commercial and industrial projects. They are designed for unhoused operation which results in a savings of the space normally occupied by the

fan housing. Additional space savings are realized when multiple duct takeoffs are required. Ductwork is connected directly to the pressurized plenum without intermediate transitions. Typical applications include:

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	shown with optional guarding.

Advantages of the QEM vs. QEP

Greenheck offers two solutions for your plenum design needs. The QEM is a cost effective solution for performances in class I and most of class II as well. Fan selection is simplified with one fan design for belt drive and another for direct drive, both

with motors mounted directly to the fan to reduce the fan’s footprint. #PUI
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the initial purchase cost of the QEM is lower than other plenum fans, the QEM still shares the exact same performance

benefits of the high end model QEP.

Model QEP can be utilized when customers demand a premium quality product, or need to reach performances in the class III operating range. In addition to sharing the same high-efficiency and low sound wheel design as the QEM, the QEP also features longer life L10 80,000 hour bearings, a powder coat finish, as well as a wider range of mounting options and accessories.

QEP arrangement 1 belt drive shown with optional structural steel base and belt guard.

Plenum Model Number Code:





2&1







$8



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1



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Greenheck Fan Corporation certifies that the Model QEM and QEP plenum

Fan Size

QEM 12-36

QEP 12-73

Model

QEM

QEP

Arrangement 4 - Direct 



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Rotation

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$$8

Motor HP



 





 





 





 



Motor RPM

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Fan Class (QEP only, QEM exceeds Class I) I, II, III

fans shown herein are licensed to bear the AMCA seal. Direct Drive models are not licensed to bear the AMCA

Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

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