Quiet & efficient plenum fans, Advantages of the qem vs. qep, Plenum model number code – Greenheck Fan QEP User Manual

Page 2

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Greenheck Fan
Corporation certifies
that the Model QEM
and QEP plenum
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.

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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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.
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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 L

10

80,000 hour bearings,

a powder coat finish, as well as a wider range of mounting
options and accessories.

2



Quiet & Efficient
Plenum Fans



QEP arrangement 1 belt drive shown with

optional structural steel base and belt guard.

QEM arrangement 9 belt drive
shown with optional guarding.

Plenum Model Number Code:

2&1$8**1#

Model

QEM
QEP

Motor RPM

Arrangement

4 - Direct
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Fan Size

QEM 12-36
QEP 12-73











A



#
$

'
M



Motor HP

Rotation

$8 $$8

Fan Class (QEP only, QEM exceeds Class I)

I, II, III


1
1

1
1
1

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(Direct Drive only)

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This manual is related to the following products:

QEM