Greenheck Fan QEP - Manual (Page 5)


Standard Construction
and Features


12-Blade Aluminum Airfoil Wheel
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high efficiency and low sound 12-blade airfoil
design. The aluminum wheel reduces start-up
torque requirements as well as shaft loading during
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blades to improve efficiency and reduce vibration. All
wheels are balanced to grade G6.3 per ANSI S2.19.
AMCA Air and Sound Certification
AMCA certification assures that all Greenheck plenum
fans will perform as cataloged. Fans are rated for air
performance as well as sound levels (inlet and outlet).
Quality Assurance
All plenum fans receive
a run test at the design
speed in the factory after
final assembly. QEM fans
are checked for amp draw
and the levels recorded.
QEP fans are subjected
to a complete vibration
analysis in three planes.
The recorded filter-in
vibration levels must meet
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A permanent record of this test is kept on file at the
factory for future reference. A copy of the test report
is available upon request.
Premium Quality Bearings
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supplied with air handling
quality bearings which are

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tolerance for swivel torque,
noise levels and bore size
specifications. Other
bearing design features
include concentric
mounting collars (no set
screws) which provide
superior grip force between
the collar and the fan shaft
as well as zerk fittings for
lubrication.
Drive Frame
All plenum fans feature
a laser cut and formed
framework. Model QEM
utilizes a galvanized
construction, while the
QEP features a fully
welded design with
Permatector™, an electrostatically applied polyester
urethane powder coat finish.
Fan Shaft
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is turned, ground, polished and sized such that the
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speed for increased bearing life and decreased
vibration.
CAD Drawings Available
To assist with system design and layout, 2D CAD files
for all plenum fans are available. Drawings can be
downloaded directly through the CAPS program after
product selection at www.greenheck.com or consult
the factory.
QEM QEP
Available Sizes
11 sizes
12–36
18 sizes
12–73
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DGN
17 m
3 T
200,000 cfm
99 m
3 T
Maximum Pressure

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1.6 kPa
12 in. wg
3 kPa
Performance Classes I, II (Partial) I, II, III
Arrangements 4, 9 1, 3, 4
Mounting Horizontal
Horizontal,
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AMCA Air Standard Standard
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IST

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IST

- 400,000 hrs /" Standard
Framework Construction
Galvanized Steel Standard /"
Permatector™ Coated Steel /" Standard
Integral Lifting Points Standard Standard