Greenheck Fan Mixed Flow Fans Belt and Direct Drive QEI User's Manual

Mixed Flow Fans

Belt and Direct Drive

Models QEI-L, QEI, QEID

May

2012

2

Quiet & Efficient, Inline

Mixed Flow Fans

Mixed flow inline fans can be used for supply, exhaust, or return air installations. Our patented design excels in commercial applications where low sound is critical.

In addition, Greenheck’s mixed flow fans are more efficient than comparably sized tubular centrifugal and vane axial fans, thus reducing the required motor horsepower and lowering operating costs.

Greenheck’s mixed flow fans are the quietest tubular inline fans in the industry!

• Performance as cataloged is assured. All sizes are licensed to bear the AMCA Certified Sound (both inlet and outlet) and Air Performance Seal.

UL/cUL Listed

705 - Electrical

Emergency Smoke Evacuation

762 - Restaurant Grease Exhaust

QEI-L QEI-I/II QEID

 

 





• All sizes are tested before they leave the factory to ensure trouble-free operation at the jobsite.

• Compact size and a “Universal Mounting System” make tight space considerations and last minute mounting changes easy to handle at the jobsite.

• The belt drive models use air handling quality bearings that are 100% inspected for swivel torque, noise levels, and bore tolerances.

• These products are subjected to extensive life cycle testing, assuring many years of reliable performance.

Typical Mixed Flow Applications:

Recommended for any ventilation application that requires low sound and high efficiency, such as office buildings, parking garages, concert halls, libraries, and educational facilities.

Greenheck Fan Corporation certifies that the model QEI-L, QEI-I/II and

QEID shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and

AMCA Publication 311 and comply with the requirements of the AMCA

Certified Ratings Program.

For QEID performance showing AMCA licensed data for sound and air performance, please refer to the

QEID Sound and Air Performance Supplement found on our website at www.greenheck.com.

See page 10 for details.

Model QEI-L – Belt Drive

• 11 sizes available (12 thru 36)

• Volume Range: 700 - 40,000 cfm

(1190 - 67,960 m 3 /hr)

• Static Pressure: Up to 5 in. wg (1245 Pa)

Model QEI-I/II – Belt Drive


• Two classes of construction


(850 - 195,386 m 3 /hr)

• Static Pressure

Up to 5 in. wg (1245 Pa) Class I

Up to 8.5 in. wg (2120 Pa) Class II

Model QEID – Direct Drive


• 50 - 100% wheel widths


(1,360 - 141,000 m

3

/hr)

• Static Pressure: Up to 10.5 in. wg (2370 Pa)

Patented (QEI/QEID): USA Patent No. 7048499

China (P.R.) Patent No. CN1294361C

Mexico Patent No. 243465

Standard Construction

Housing

Tubular housings are constructed of welded steel to eliminate air leakage. Integral straightening vanes are constructed from steel and welded into place.

Wheel – Mixed Flow

Fabricated wheels are constructed from steel. The blade profiles are angled and contoured for the most efficient and quiet performance.

Bearings (Belt Drive)

Standard bearings are premium air handling quality, grease lubricated, self-aligning, ball or roller type.

Bearings are selected with a basic rating fatigue life

L

10

per ABMA standards, in excess of 80,000 hours

(L

50

at 400,000 hours) at the maximum operating speed for the QEI-I/II and QEI-L in the horizontal position. The QEI-L bearings are selected with a basic rating fatigue life L

(L

50

10

in excess of 50,000 hours

at 250,000 hours) in vertical position.

Bolted Access Door

A bolted access door provides an opening through the fan housing for cleaning or visual inspection of the wheel. A hinged access door is available as an accessory.

Belt Guard (Belt Drive)

A totally enclosed belt guard provides protection from rotating pulleys and belts. Belt guards meet

OSHA Standards.

Slip-Fit Duct Connection (QEI-I/II & QEID)

Inlets and outlets are designed with extended collars for slip-fit duct connections as standard. QEI-L is flanged as standard. Companion flanges can be ordered for slip fit connections.

Adjustable Motor Bases (Belt Drive)

Rigid, heavy-gauge steel motor bases are welded to the fan housing and include heavy-duty adjustment screws for belt tensioning.

Extended Lube Lines

Belt drive units have nylon lubrication lines with grease fittings that allow bearing lubrication without disassembling the fan. Grease fittings are mounted on the outside of the fan housing. Direct drive units have extended lubrication lines for the motor bearings, if required. Smaller frame sized motors are typically sealed and not lubricatable.

Permatector™ Coating

Greenheck’s Permatector coating is a thermosetting polyester urethane, electrostatically applied to provide uniform thickness and a clean appearance.

Permatector coatings also provide excellent corrosion characteristics for general applications, both indoor and outdoor. For corrosive environments

(ie. coastal), see page 9 for information on our zincrich basecoat technology.

Model Number Nomenclature

The model number code provides a numbering system designed to identify the fan model, size and horsepower.

QEI D* - 36 - I - 70 - A 30

D = Direct Drive

Fan Size

9, 12, 15, 16, 18, 20,

22, 24, 27, 30, 33, 36,

40, 44, 49, 54, 60

Belt Drive available in sizes 9 through 60

Direct Drive available in sizes 12 through 54

Construction

L = Low Pressure

I = Class I

II = Class II

Low Pressure available in sizes 12 through 36

Motor Horsepower

4 = ¼

3 =

3

5 = ½

7 = ¾

10 = 1

15 = 1½

20 = 2

30 = 3

50 = 5

300 = 30

400 = 40

75 = 7½ 500 = 50

100 = 10 600 = 60

150 = 15 750 = 75

200 = 20 1000 = 100

250 = 25 1250 = 125

RPM

A = 1770 C = 870 J = 1425 M = 3600

B = 1170 F = 690 K = 950 R = 2900

Percent Wheel Width

50 through 100

* Blue text is specific to direct drive model QEID only

33

Value Added Features

Quality Assurance Test

Before shipment, all Greenheck mixed flow fans are tested at the design speed after final assembly.

QEI-L fans are checked for amp draw and the levels are recorded. QEI-I/II and QEID fans are subjected to a complete vibration analysis. The maximum allowable vibration on a QEI-I/II at the fan bearings is 0.15 in/sec. peak velocity for the specified RPM. QEID maximum vibration is 0.08 in/sec. peak velocity on the fan housing for the specified RPM. A record of the vibration test result is available upon request.

By performing the vibration test, we are able to provide more than wheel balancing, it is also a diagnostic tool for finding potential problems. A defective bearing or motor, bent shaft or misaligned sheaves may cause excessive vibration. A complete vibration test will uncover these problems before the fan leaves the factory.

Electrostatic Powder Coatings

Powder coatings offer a uniform, durable and high-quality finish.

Standard powder coating is a one-coat process applied over a phosphatized surface that generally meets or exceeds the corrosion resistance of a comparable wet paint.

Greenheck offers a number of in-house coatings applied via “electrostatic powder.” The standard coating, Permatector™, is excellent for indoor or outdoor applications and is resistance to many common chemicals. Consult

Greenheck’s Product Application

Guide, Performance Coatings for

Ventilation Products , for a complete listing of coatings and a relative resistance chart. For corrosive environments (i.e. coastal), see page 9 for information on our zinc-rich basecoat technology.

Maintenance / Serviceable Construction Advantages

The following value added features are incorporated into the design to allow for quick and easy field service.

QEI-L and QEI service advantages:

• Bearing lubrication is performed through extended grease fittings located on the outside of the fan housing.

• The entire shaft and bearing assembly can be removed as a single assembly from the inlet end of the fan housing.

• An adjustable motor base is provided for tightening the fan belts.

QEID service advantages:

• Extended lubrication lines are provided for motor bearing requiring lubrication.

Smaller frame motors use sealed bearings and are permanently lubricated.

4

Inlet and Outlet Sound Power Levels

All Greenheck mixed flow fans have AMCA licensed sound power levels for both the fan inlet and outlet.

Application and installation determines which sound power reading (inlet, outlet, or both) is critical. The differences between the generated sound from the inlet and outlet are important and noticeable. AMCA licensed inlet and outlet sound power data provides complete sound information to select a fan based on the acoustical requirements. For additional information on sound, refer to page 6.

Greenheck’s Sound Lab

Field Rotatable Housing / Compact Size

The QEI-L and QEI are designed to accommodate changing fan mounting positions and motor orientation in the field. Mounting fixtures are securely bolted to the fan casing and can be relocated to reposition how the fan is installed or the position the motor is oriented. Flexibility in a motor’s location is important for easier access and can determine where the unit will fit. Last minute design changes or unexpected obstacles during installation are no longer a problem.

Greenheck’s mixed flow fans were designed for compact size.

Keeping size to a minimum is important when fitting into tight spaces like mechanical rooms or air handlers.

Slip-Fit Duct Connections

The inlet and outlet ends of the QEI-I/II and QEID are designed to accept “slip-fit” connections. Often companion flanges are bolted to a fan’s inlet/outlet flange to provide a slip-fit connection for a flexible sleeve, as with the QEI-L. This extra step is now eliminated by directly attaching the flexible sleeve to the duct and fan. This saves time and money in the installation process.

It is recommended to use a flexible sleeve connection instead of a rigid duct connection.

The advantages of a flexible transition are:

• Decreased sound transmission in the ductwork

• Flexible connections allow for minor misalignment

• Accommodates the use of thrust restraints to resist thrust loads

Patented (QEI/QEID)

USA Patent No. 7048499

China (P.R.) Patent No. CN1294361C

Mexico Patent No. 243465

AutoCAD

®

and 3-D Revit

®

Models

Scaled AutoCAD ® drawings and Revit ® models are available through Greenheck’s website or from the Greenheck CAPS program which retrieves drawings and places them automatically into a job folder.

Design & Performance

Mixed Flow: Axial/Centrifugal Hybrid

A mixed flow wheel is a hybrid between an axial propeller and a centrifugal wheel. The result is a design that combines the best axial and centrifugal properties: highly efficient air movement, increased pressure capabilities, extremely low sound levels, and a steep fan performance curve. To further enhance the fan’s performance, straightening vanes are incorporated in the housing. These serve to convert swirling airflow into a straight axial flow with a resulting static pressure rise and energy savings.

Centrifugal

Mixed Flow

Axial

CFM

Airflow Profiles

Axial Centrifugal Mixed Flow

Axial Fans : Straight through nearly linear airflow.

Centrifugal Fans: Two 90° deflections, before airflow exits the fan.

Mixed Flow Fans: Slight airflow deflection from straight through.

Sound and Efficiency

Sound power levels and fan efficiency are two very important factors when selecting a fan. There is a noticeable difference between impeller types. The table and chart below compare the sound power (L w

A) and the static efficiency of the belt-driven mixed flow fan wheel versus tubular centrifugal and vane axial inline fans. Over a wide range of operating points, the mixed flow fan provides the quietest and most efficient selection.

Performance

Mixed Flow

Fan Size Mixed Flow

(QEI-L, QEI-I/II)

Sound Power (LwA)

Inline

Centrifugal

15,000 cfm

@ 1.0 in. wg

25,000 cfm

@ 2.0 in. wg

50,000 cfm

@ 4.0 in. wg

24

36

49

90 dB

86 dB

92 dB

100 dB

93 dB

98 dB

Model comparisons based on similar outer tube diameters.

Vane Axial

103 dB

102 dB

111 dB

Mixed Flow

(QEI-L, QEI-I/II)

Static Efficiency

Inline

Centrifugal

Vane Axial

43% 17% 34%

68%

71%

45%

60%

56%

59%

Lower Sound Power, Better Sound Quality

Sound power levels shown at each frequency:

Typical

Tubular Centrifugal

Typical

Vane Axial

QEI-L

QEI-I/II

100

90

80

70

60

The sound quality of the belt-driven mixed flow fan line is as beneficial to low sound design as is the reduced overall sound power. The sound chart compares units of similar outer tube diameters at an operating point of 20,000 cfm with

Typical Tubular Centrifugal 1.5 inches wg of static pressure (Ps). Tubular centrifugals

(green) have dominant tones in the 63 Hz through 250 Hz octave bands, while vane axials (red) have more mid to high frequency sound. The mixed flow fan (blue) does not have a dominant tone. A bystander would hear a more bland sound that is quieter than a tubular centrifugal or vane axial.

62 125 250 500 1000 2000 4000 8000

Frequency, Hz

6

QEI

Typical Vane Axial

Typical Centrifugal

60

50

40

80

70

30

14000 16000 18000

CFM

20000 22000 24000

Wheel Characteristics

Belt Drive: Fan Class

Class I and II fans have different wheel designs with different performance characteristics.

Class I mixed flow wheels are optimized for performances involving low pressures and high volumes. Class II wheels are designed for a steeper fan curve with higher pressure capabilities. This is illustrated in the graph with the two different class wheels plotted at identical fan RPMs.

When selecting a mixed flow fan, it cannot be assumed that moving into a Class II fan will produce the same results as a Class I mixed flow fans. Model QEI-L utilizes a Class I wheel.

Class II

Class I

CFM

Direct Drive: Percent Wheel Width

Direct drive mixed flow fans are optimized for performance requirements by the use of partial width wheels. This is necessary because the fan RPM is commonly fixed and identical to the motor RPM. A reduction in the width of the wheel (or the air passage) results in reduced airflow capacity and a steeper fan curve. This is similar to the effect of a reduced pitch in a direct drive vane axial fan. QEID wheels are available in 5% increments from

50 - 100% wheel width.

QEID fans can be used in conjunction with variable frequency drives (VFD’s) for variable air volume (VAV) systems. In these applications, the wheel width is optimized to ensure efficient operation and stable performance throughout the turndown range. VFD’s are also used for final system balancing and to reduce the airflow when building requirements are reduced. In this case, the fan and wheel width are selected using the final design CFM and static pressure.

50%

Wheel

50% Wheel Width

Width

50% Wheel Width

50% Wheel Width

50%

Wheel

Width

50%

Wheel

Width

Intermediate

Wheel

Widths

Intermediate

Wheel

Widths

CFM

100%

Wheel

Width

100%

Wheel

Width

100% Wheel Width

CFM

Sound Power versus Sound Pressure

The sound values displayed on the performance pages are in terms of inlet sound power ( power (L

W o

A

L

W i

A) and outlet sound

). These values are the acoustic power radiating from the inlet and outlet of the fan, respectively.

Sound pressure, expressed as dBA, is the acoustic pressure at a point in space which can be measured with a microphone or can be heard. To convert sound power (L w

A) into sound pressure (dBA), the following corrections

100% Wheel Width dBA = L w

A - correction

Distance from Fan

Correction

3 ft. (0.9 m)

7 db

5 ft. (1.5 m) 10 ft. (3.0 m)

11.5 db 17.5 db

Note: Refer to AMCA Publication 303, Application of Sound Power Level Ratings for additional information on calculating typical sound pressure levels for fan installation.

7

Intermediate

Wheel

Widths

CFM

100%

Wheel

Width

Optional Features

Sure-Aire™

The Sure-Aire™ flow monitoring system measures fan flow within a 3% accuracy. Unlike traditional flow probes mounted in the fan venturi that create a system effect hindering fan performance, Sure-Aire™ does not interfere with airflow and will not impact the fan’s air or sound performance. This option is available on all mixed flow fan models and ships completely assembled from our factory.

An electronics package with pressure transmitter and digital read out is available with the Sure-Aire™ system. The electronic kits are available for 50 or 60 Hz power supplies and provide a 4-20 mA output that can be tied into the building’s automation system.

Sound Sensitive Areas

Sound Vault Housing - Radiated Sound Enclosure

The sound vault housing is an excellent product for fans that will be positioned adjacent to an occupied work space or in sound critical applications. It locks in radiated sound from the fan casing, motor and drives, and minimizes vibration transmission. Standard construction includes an acoustically lined housing, integral spring isolators, and internal flexible connections at the fan’s inlet and outlet to effectively isolate the fan from the system. Vertical or horizontal mounting configurations are available.

Why use a Sound Vault?

• Sound power attenuation levels determined by sound intensity tests on actual units

• Ships fully assembled with fan

• Internal isolation to limit breakout noise

• Access panels for inspection of fan and motor

• Bearing lubrication lines extended to outside of enclosure

• Formed mounting rails with prepunched holes for easy installation

• Available on both QEI-I and QEID through size 27 fans

This table lists the radiated sound reductions from total sound power levels for each octave band with the sound vault housing.

Center Frequencies [Hz] 63 125 250 500 1000 2000 4000 8000

Attenuation Value (dB) 13 20 25 31 34 35 36 36

8

Optional Two-coat

Paint System

In 1972, Greenheck took the lead as the first commercial and industrial fan manufacturer to introduce electrostatic powder coatings. Today, Greenheck continues to lead by being the first to offer a superior zinc-rich powder basecoat and powder coating finish.

This zinc-rich basecoat technology is used extensively outside the HVAC industry to protect bridge beams, automotive components and other heavy-gauge steel products. Now, this advanced technology is available on

Greenheck welded steel products.

Greenheck’s coating process starts with a minimum of five wash stages to treat all components prior to painting. Cleaner parts result in better coating adhesion and durability. We then use an advanced two-coat powder application method that includes a basecoat of zinc-rich powder and a topcoat of Greenheck’s

Permatector™ or Hi-Pro Polyester. The combination of these two topcoats over the zinc-rich basecoat results in the two-coatings, Perma-Z and Hi-Pro-Z. These oven-cured coatings provide superior corrosion resistance along with a tough, uniform finish to combat the most extreme conditions.

Zinc Advantage

When compared to a traditional single coat application, the benefits of the two-coat system include:

• An automatic powder coat application that produces uniform coverage and unmatched paint quality.

• A double coat thickness that provides superior durability and protection from air and water.

• A zinc-rich basecoat that includes an epoxy component that provides additional corrosion protection.

One Coat Process

Two-coat Process

• A zinc-rich basecoat that provides chemical protection of exposed steel to prevent corrosion.

The protection offered by the zinc-rich basecoats in

Perma-Z and Hi-Pro-Z result in extraordinary corrosion resistance. Test data demonstrates our two-coat paint system offers three (Perma-Z) and four (Hi-Pro-Z) times the corrosion resistance of other coatings commonly available within the fan industry. See table for salt spray life for various coatings.

Coating fans with Perma-Z or Hi-Pro-Z has reduced our customers annual paint maintenance costs by three to four times!

For more information, see Greenheck’s Coatings for

Extreme Applications catalog, available online at www.greenheck.com

Topcoat

2-3 mils

Topcoat

4-6 mils Total

Base Steel

Base Steel

Standard

Surface Preparation

Zinc-rich Primer

(70% zinc)

Advanced

Surface Preparation

Hours

Salt Spray ASTM B117

1000 2000 3000 4000

Permatector™

Hi-Pro Poly

Perma-Z

Hi-Pro-Z

Baked Phenolic

Epoxy Phenolic

Fluorocarbon

Salt Spray ASTM B117 is a comparative test that indicates the corrosion resistance of powder paint coatings.

99

Certifications & Listings

Y

Seismic Certification

The International Building Code (IBC) has been adopted at the state and local level throughout the United States. With the adoption of this code, comes the introduction of standards intended to improve the performance and design of non-structural systems subject to seismic events.

QEI-I/II and QEID

• Meet the 2006 IBC, 2009 IBC

Z X

Tau Bot psi

7880

7090

6300

5510

3930

3140

2350

1560

770

-20

• California OSHPD requirements (horizontal mount only) OSP 0223-10

• Shake table tested at an independent test facility in accordance with

ICC-ES AC 156

• All equipment certified to worst case scenario seismic conditions

- Importance factor of 1.5 (IP = 1.5)

- Site Classes (A - F)

- Occupancy Categories (I - IV)

- Seismic Design Categories (A - F)

Structural Finite Element Analysis

Rice Engineering Inc QEI-54 Class I

Mar 5, 2009 at 5:39 PM

090224 EQZ .r3d

08-08-05J

Consult your Greenheck representative or visit greenheck.com/seismic for more details.

UL 705 Power Ventilator

QEI-L, QEI-I/II and QEID models are available with the UL/cUL 705 (Underwriters Laboratory) listing on a wide variety of 50 and 60 Hz motors. This listing ensures the use of UL approved electrical components.

Motors are available as either IEC (IP55) or NEMA (TEAO or ODP) designs. IEC design motors are adjustable speed drive (ASD) compatible, have class F insulation and are capable of wye-delta starting when over 5.5 kW. NEMA motors use across the line starting with options for ASD compatibility. Motor (IEC or NEMA) using 50 Hz power have

UL/cUL File E40001

UL/cUL Listed Power Ventilator a 1.0 service factor, while 60 Hz power have 1.15 service factor. Design and construction options for motors include increased thermal insulation, overload protection and extended motor leads.

UL Emergency Smoke Evacuation

QEI-I/II and QEID models were tested and rated for design time and temperature used in emergency heat and smoke exhaust applications.

UL/cUL File MH17511

UL/cUL Power Ventilators for Smoke Control Systems

Model

Operating

Temperature

QEID

ºC

300

QEI-I/II 300

ºF

572

572

Time

Duration

Hours

1

Comments

Per British Spec 7346

2

QEI-I/II

QEID

260

260

500

500

4

5

Per Industrial Risk

Insurers (North America)

Consult your Greenheck representative for time and temperature combinations other than those listed.

UL 762 Restaurant Exhaust

Inline grease exhaust fans are an excellent alternative for kitchen applications when roof or wall mounted ventilators are not practical. A QEI-I/II with UL 762 grease option is designed to withstand the demands of high temperature kitchen grease exhaust and high-pressure duct washers.

A Tough Package to Beat

The QEI-I/II inline grease fan is tough to beat when packaged with our full line of kitchen hoods and grease extraction options. Take advantage of Greenheck’s expertise in providing a total solution in kitchen ventilation equipment.

10

Listed Power

Ventilation for

Restaurant

Exhaust

Appliances

13G3 Maximum

Operating

Temperature

400°F.

UL 762 is concerned with fans designed for removal of smoke and grease laden vapors with airstream temperatures up to 400°F.

• Meets all UL 705 requirements

• UL/cUL File MH11745

UL/cUL Power Ventilators for

Restaurant Exhaust Appliances

• Bolted access door

• Drain connection

• Meets requirements of NFPA 96

Ventilation Control and Fire Protection of Commercial Cooking Operations

Belt Drive versus Direct Drive

Belt Drive Advantages

• Lower sound levels

• Motor out of the airstream for easy access

• Motor size may be changed to accommodate possible future air capacity requirements

• Final system balancing accomplished by changing drives

Direct Drive Advantages

• Fewer wear components and less maintenance, no shaft, bearings, pulleys, or belts

• More compact than equivalent belt drive size

• Motor in airstream for increased motor efficiency and cooling

• Equal loading between mounting brackets

• Final system balancing accomplished by adjusting the motor speed (ex. variable frequency drive use).

High Efficiencies = Lower Operating Costs

Example of Annual Operating Cost Savings

For a system performance requirement of 25,000 cfm at 2.5 inches of static pressure (wg) the corresponding operating power requirements are 13.97 Bhp with a QEI-I size 36 and 19.8 Bhp for a size 36 tubular centrifugal fan.

Formulas:

- Kilowatt-Hours = (Operating Power (Bhp) x 0.746 x Hours of Operation) / Motor Efficiency

- Operating Cost = Kilowatt-Hours x Power Cost per kW hour

Assumptions:

- Cost of electricity is $0.09 per kilowatt hour

- 3,120 annual hours of operation (12 hours per day, five days a week, 52 weeks a year)

- 93.0% motor efficiency (equal to NEMA Premium minimum efficiency for 15 and 20 hp, ODP, 1725 rpm motor)

Tubular Centrifugal Fan

kW-Hours = (19.8 Bhp x 0.746 x 3120) / 0.93 = 49,554

Operating Cost = 49,554 x $0.09 = $4,460

QEI-I - Mixed Flow Fan

kW-Hours = (13.97 Bhp x 0.746 x 3120) / 0.93 = 34,963

Operating Cost = 34,963 x $0.09 = $3,147

Annual Operating Cost Savings = $4,460 - $3,147 = $1,313

11

Belt Drive Mounting

Configurations

QEI-I/II Sizes 9-27 and all QEI-L

Fig. 1

Fig. 3

Vertical Ceiling Hung

Fig. 2

Fig. 4

Optional

Mounting

Rails

Optional

Mounting

Rails

Optional

Mounting Rails

Universal Mounting

QEI-I/II models sizes 9-27 and all QEI-L models can be mounted horizontally or vertically. For ease of installation, eight mounting brackets are welded on each fan. These eight brackets along with standard mounting supports provide for Greenheck’s Universal Mounting System.

Motor positions are viewed from the discharge end.

Fig. 1 Horizontal Base Mount

Each fan is shipped as standard in this arrangement.

Motor at “A” position (12 o’clock) is standard.

Fig. 2 Horizontal Base Mount with motor at “C” or “G” position (3 or 9 o’clock). A set of optional mounting rails are recommended for this installation.

Fig. 3 Horizontal Ceiling Hung

In this installation the supports can be positioned for mounting the motor at “A” or “E” (12 or 6 o’clock).

Fig. 4 Horizontal Ceiling Hung with motor at “C” or “G” (3 or 9 o’clock). A set of optional mounting rails are recommended for this installation.

Fig. 5 Vertical Mount

Universal QEI fans can be mounted vertically (ceiling hung or base mount) for either upward or downward airflow. Optional mounting rails are suggested for any vertical installation.

Vertical Base Mount

Fig. 5

A

QEI-I/II Sizes 30-60

QEI-I/II models 30-60 are available in horizontal and vertical mounting configurations.

Lifting lugs are provided on horizontal fans for ease of installation. Vertical units should be lifted by the mounting brackets.

Horizontal Mounting

Horizontal mounting configurations, base mount or ceiling hung, are provided with an identical support. The mounting configuration can be changed between base mount or ceiling hung in the field. The motor position can also be field rotated to any of the shown positions. Motor positions are viewed from the discharge end.

Base Mount: Rigid steel base provides stable mounting to floor for the housing.

Motor Positions: A, B, C, G and H

Ceiling Hung: Suspend the fan horizontally from the ceiling.

Motor Positions: A, C, D, E, F and G

Mounting rails are recommended for horizontal installations with B, C, D, F, G and H motor positions.

G

G

H B

C

Horizontal - Base Mount

A

C

F D

E

Horizontal - Ceiling Hung

Vertical Mounting

Vertical mounting configurations, upblast or downblast, are provided with heavy duty steel brackets welded to both ends. These brackets permit either floor or ceiling mounting on the same unit. Optional mounting rails are suggested for any vertical installation for sizes 9-27.

12

Roof Upblast & Spark Resistant

Construction

Roof Upblast

Models QEI-I/II sizes 9 through 54 and model QEID sizes 12 through 54, are available in roof upblast configuration. The roof upblast configuration is ideal for exhausting contaminants away from a building to prevent roof damage and re-entrainment of exhaust air. Both QEI-I/II roof upblast models have the high temperature UL rating and can be used for emergency smoke exhaust applications.

Standard construction includes a fully-welded heavygauge curb cap to eliminate leaks, a butterfly damper section for backflow prevention, and a windband section to protect the butterfly dampers from debris. A complete line of roof curbs is available for mounting to a roof deck.

Spark Resistant Construction

Greenheck mixed flow fans are available with spark resistant designs suitable for applications that involve flammable particles, fumes or vapors. Spark resistant construction options adhere to guidelines defined within AMCA Standard 99-0401-10.

QEI-I/II Spark B

The fan wheel is constructed of a nonferrous material (aluminum).

A non-ferrous (aluminum) bearing cover surrounds the driven bearing, shielding it from the airstream.

QEI-I/II

QEI-L

Spark C

The inlet cone is constructed of non-ferrous material (aluminum).

A nonferrous (aluminum) bearing cover surrounds the driven bearing shielding it from the airstream.

13

Accessories

Availability

QEI-L QEI-I QEI-II QEID

Motor Cover

Copper Lube Lines

(Belt Drive)

Flanges

A weatherproof motor cover shields the motor components from dust, dirt and moisture for indoor or outdoor installations. Motor covers also serve as a personnel guards and meet OSHA standards.

Hinged Access Door Hinged access doors provide an opening through the fan housing for cleaning or visual inspection of the wheel. Bolted access door is standard.

Extended Life

Bearings

Air handling quality, flange mounted bearings meet a basic rating fatigue life L

200,000 hours (L

50 speed.

10

per ABMA standards, in excess of at 1,000,000) at maximum operating

Copper lube lines can be used as a replacement for standard nylon lube lines.

Inlet and outlet flanges with prepunched holes, welded to the housing, provide an easy means for bolted connection to ductwork. Matching bolt-on companion flanges are also available.

Disconnect Switches Toggle-type and heavy-duty disconnect switches are available for positive electrical shut-off and safety when servicing fans. The following switches are available to meet individual electrical requirements and can be factory mounted or shipped loose for field mounting.

• NEMA-1 General purpose

• NEMA-3R

• NEMA-4

Rainproof

Watertight

• NEMA-7 & 9* Class 1 and 2 hazardous locations

*Greenheck will not factory mount NEMA-7 & 9 disconnect switches.

Inlet and Outlet

Guards

Extended Wiring

Removable inlet and outlet guards provide protection for personnel and equipment in ducted or non-ducted installations.

Electric leads from the motor junction box are brought out to exterior of unit. This provides an easy means of connecting the motor to the electrical system.

Belt Tube A totally enclosed belt tube isolates the belts and drives from the airstream.

Sound Vault Housing See page 8 for more details on sound vault housing.

Mounting Rails

Isolators

Special Coatings

Sure Aire™ Flow

Measurement

Mounting rails are recommended for vertically mounted fans or horizontal mounting when the motor is to be located in the

C or G (3 or 9 o’clock) position.

Both base mount and hanging isolators are available in either neoprene or spring mounts.

Special coatings are available for protective purposes.

Consult Greenheck’s Product Application Guide,

Performance Coatings for Ventilation Products , for a complete list of coatings available and their chemical resistance. Available online at www.greenheck.com.

Sure-Aire provides real-time flow measurement for use in building automation systems. For additional information, see page 8 or our Sure-Aire Flow Monitoring System catalog available at www.greenheck.com.

14







Std.



















































































Exploded View

Motor Cover

Companion Flange

Slip Fit Connection

(Standard on QEI-I/II)

Inlet Guard

Outlet Guard

Outlet Flange

(Standard on QEI-L)

Bolted Access Door

(Standard)

Spring Base Isolator

Neoprene Base Isolator

Inlet Flange

(Standard on QEI-L)

Companion Flange

Mounting

Rails

Spring Hanging Isolator

15

Direct Drive Selection Charts

The quick select charts below and on the following page are a convenient method for sizing the fan required for a specific performance. Colored bands for a given size in each chart represent the entire operating range available for that size and speed.

For QEID performance pages showing AMCA Licensed data for sound and air performance please refer to the

Model QEID Sound and Air Performance Supplement found at www.greenheck.com

1770 RPM

(60 Hz)

Model QEID

12—33

12

10

Static

Pressure

(in. wg)

8

6

4

2

0

1

12 15 16

5

18 20 22 24 27 30 33

10

Volume (cfm x 1000)

50 100

1170 RPM

(60 Hz)

Model QEID

15—49

Static

Pressure

(in. wg)

8

6

12

10

4

2

0

1

15 16 18 20

5

22 24

10

27 30 33

Volume (cfm x 1000)

36 40 44 49

50 100

QEID Dimensional Data

8

870 RPM

(60 Hz)

Model QEID

36—54

6

Static

Pressure

(in. wg)

4

2

0

10 20

36

30

40 44

40 50

Volume (cfm x 1000)

49 54

Slip Fit

O.D.

Length

* Length varies with motor frame size.

Refer to Length table shown.

** Weight is for unit only and does not include motor.

Size

30

33

36

40

44

49

54

Size

40

44

49

54

27

30

33

36

18

20

22

24

12

15

16

27.81

30.88

34.00

37.44

41.63

45.75

50.56

55.75

Slip Fit O.D.

inches mm

17.13

435

530 20.88

23.00

25.38

584

645

706

784

61.63

67.75

75.00

864

951

1057

1162

1284

1416

1565

1721

1905

Length* inches mm

25.0

635

635 25.0

26.0

29.0

34.0

35.5

41.5

45.0

660

737

864

902

1054

1143

Refer to table below.

250

370

480

570

860

1140

1360

1650

Weight** lbs.

kg.

100 45

65 140

170

200

80

95

115

170

220

260

390

520

620

750

2190

2700

3130

995

1225

1420

254/6 T 284/6 T

Length — inches (millimeters)

324/6 T 364/5 T 404/5 T 444/5 T

45.5 (1156) 50.0 (1156) 50.0 (1156)

46.5 (1181) 54.0 (1372) 54.0 (1372) 54.0 (1372)

50.5 (1283) 58.0 (1473) 58.0 (1372) 58.0 (1372)

56.5 (1435) 61.0 (1549) 61.0 (1549)

64.0 (1626) 64.0 (1626) 70.0 (1778)

74.5 (1892) 74.5 (1892) 80.5 (2045)

77.0 (1956) 77.0 (1956) 83.0 (2108)

100

17

Slip Fit

O.D.

Airflow

Height

QEI Dimensional Data

QEI-L

Airflow

Height

QEI

Slip Fit

O.D.

Airflow

Height

Length

18

Length

Length

Size

9

QEI-L QEI Class I

Slip-Fit O.D.

Length

inches (mm)

Height

inches (mm)

Slip-Fit O.D.

inches (mm)

Length Height

inches (mm)

NA NA NA 17.13 (435) NA NA

12 17.5 (445) 26.5 (673) 37.5 (953) 17.13 (435)

QEI Class II

Length Height

inches (mm)

28.5 (724) 36.5 (927)

28.5 (724) 36.5 (927) 30.5 (775) 36.5 (927)

44

49

54

60

15

16

18

20

22

24

21.13 (537)

23.31 (592)

25.63 (651)

28.06 (713)

31.13 (791)

29.0 (737) 41.5 (1054)

31.0 (787) 44.0 (1118)

33.0 (838) 46.5 (1181)

35.5 (902) 50.5 (1283)

39.0 (991) 53.5 (1359)

20.88 (530)

23.00 (584)

25.38 (645)

27.81 (706)

31.0 (787) 41.0 (1041) 34.0 (864) 41.0 (1041)

33.0 (838) 44.0 (1118) 34.0 (864) 44.0 (1118)

35.0 (889) 46.5 (1181) 39.5 (1003) 47.5 (1207)

37.5 (953) 50.5 (1283) 41.5 (1054) 50.5 (1283)

30.88 (784) 41.0 (1041) 53.5 (1359) 44.0 (1118) 53.5 (1359)

34.25 (870) 42.5 (1080) 55.5 (1410) 34.00 (864) 44.5 (1130) 57.5 (1461) 49.0 (1245) 59.5 (1511)

27 37.69 (957) 45.0 (1143) 61.0 (1549) 37.44 (951) 47.0 (1194) 61.0 (1549) 53.0 (1346) 63.0 (1600)

30 42.00 (1067) 52.0 (1321) 64.5 (1638) 41.62 (1057) 54.0 (1372) 65.0 (1651) 60.5 (1537) 72.0 (1829)

33 46.13 (1172) 56.5 (1435) 68.0 (1727) 45.75 (1162) 58.5 (1486) 69.0 (1753) 65.0 (1651) 76.5 (1943)

36 51.06 (1297) 62.0 (1575) 75.0 (1905) 50.56 (1284) 64.0 (1626) 75.0 (1905) 69.0 (1753) 82.5 (2096)

40 NA NA NA 55.75 (1416) 68.5 (1740) 83.0 (2108) 75.5 (1918) 90.5 (2299)

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

61.62 (1565) 74.0 (1880) 89.5 (2273) 80.5 (2045) 97.0 (2464)

67.75 (1721) 80.5 (2045) 96.5 (2451) 86.5 (2197) 104.0 (2642)

75.00 (1905) 87.0 (2210) 105.0 (2667) 93.5 (2375) 111.0 (2819)

82.88 (2105) 91.5 (2324) 113.0 (2870) 102.5 (2604) 119.0 (3023)

Airflow

Height

Length

QEI-9 Class II

Performance Data

Maximum Fan RPM

Specification Data

4000

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight

(Less Motor & Drives)

1/3 hp

15 in.

Maximum Bhp = (Fan RPM / 2671) 3

Outlet Velocity (FPM) = CFM / 1.56

184T

170 lbs.

.25 kW

381 mm

77 kg.

Tip Speed (FPM) = Fan RPM x 3.93

% WOV = (CFM x 100) / (Fan RPM x 0.73)

Imperial data — Metric data

20

15

10

5

0

10

3

5

50% WOV

60% WOV

RPM

BHP

% WOV

Density 0.075 lb/ft 3

Density 1.2 kg/m 3

8

70% WOV

6

4

2

0

0

2

1½

1

¾

½

3

DO

N

OT

S

T

TO

EL

EC

160

0

T

H

E

LE

FT

O

F

TH

IS

S

2200

YS

TE

M

C

U

R

VE

280

0

34

00

40

00

80% WOV

90% WOV

5 10 15 20 25 30

Volume (cfm x 100)

0 1 2 3 4 5

Performance Data

STATIC PRESSURE (inches wg)

CFM OV 0.25

0.5

1 1.5

2 2.5

3 3.5

4

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

850 541 1325 0.09 1463 0.14 1709 0.25 1937 0.38 2148 0.52 2341 0.67

1000 636 1511 0.13 1633 0.18 1854 0.31 2056 0.44 2252 0.59 2432 0.75 2606 0.93 2767 1.11

1150 732 1700 0.17 1811 0.23 2013 0.37 2198 0.52 2371 0.68 2542 0.85 2700 1.03 2858 1.22 3007 1.42

1300 828 1893 0.23 1994 0.29 2177 0.44 2349 0.61 2511 0.78 2661 0.96 2817 1.15 2961 1.35 3098 1.56

1450 923 2088 0.31 2181 0.37 2351 0.53 2510 0.71 2658 0.89 2804 1.08 2940 1.28 3079 1.49 3212 1.71

1600 1019 2285 0.40 2371 0.47 2530 0.63 2674 0.82 2818 1.02 2951 1.23 3083 1.44 3207 1.66 3331 1.88

1750 1114 2483 0.50 2563 0.58 2711 0.75 2849 0.95 2981 1.16 3109 1.38 3230 1.61 3351 1.84 3466 2.08

1900 1210 2682 0.63 2757 0.72 2897 0.89 3027 1.10 3149 1.32 3271 1.56 3387 1.80 3498 2.04 3611 2.29

2050 1305 2883 0.77 2952 0.87 3084 1.06 3207 1.26 3324 1.50 3435 1.75 3549 2.00 3656 2.26 3758 2.53

2200 1401 3083 0.94 3149 1.04 3274 1.25 3390 1.45 3502 1.70 3609 1.96 3713 2.22 3818 2.50 3918 2.78

2350 1496 3285 1.13 3347 1.24 3465 1.46 3576 1.68 3683 1.92 3785 2.19 3883 2.47 3981 2.76

2500 1592 3487 1.34 3545 1.46 3657 1.69 3764 1.93 3865 2.16 3964 2.44

RPM

1600

2200

2800

3400

4000

Inlet Sound Power, L

Wi

[dB ref 10 -12 watts]

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

69 71 74 70 71 67 65 57

71 69 72 68 68 66 62 56

70 70 71 66 63 65 61 55

72 70 71 65 63 65 61 55

74 75 78 75 75 74 71 65

72 71 73 72 72 71 66 60

73 72 74 70 69 70 66 60

75 73 74 70 69 70 66 61

77 78 82 78 80 79 75 74

77 78 77 74 75 75 71 66

78 79 78 74 74 74 70 65

78 79 79 75 74 74 70 65

78 80 84 80 83 83 79 79

78 81 81 77 79 79 75 71

80 82 81 77 78 78 74 70

80 82 82 79 78 78 74 70

78 82 85 82 87 87 83 83

79 83 84 81 83 83 79 76

82 85 84 80 82 81 78 76

82 84 85 83 82 82 78 75

80

77

76

76

85

81

80

80

L

Wi

A

75

73

71

71

89

84

84

84

92

88

87

88

RPM

1600

2200

2800

3400

4000

Outlet Sound Power, L

Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

76 78 78 70 71 65 63 56

77 80 77 67 68 63 58 56

80 78 76 66 66 62 58 56

82 78 77 66 66 62 58 56

86 86 84 77 78 74 69 64

86 85 84 73 74 70 65 61

87 85 82 73 73 69 65 61

88 86 82 74 73 69 65 61

88 85 87 81 83 80 75 72

87 88 85 77 79 76 71 66

91 85 86 78 78 75 70 67

92 86 86 79 79 75 70 67

88 88 91 84 87 85 80 78

90 88 89 80 83 81 76 71

94 87 89 82 83 80 76 72

94 88 89 83 84 81 76 72

88 93 96 87 91 90 85 83

94 86 92 82 87 86 81 75

95 89 92 85 86 85 81 76

95 90 92 86 88 85 81 77

82

80

79

79

87

84

84

84

L

Wo

A

76

74

73

73

92

88

88

89

96

92

92

92

Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

The sound power level ratings shown are in decibels, referred to 10

L

Wo

-12 watts, calculated per AMCA Standard 301. Values shown are for inlet L

Wi

, L

Wi

A and outlet L

Wo

,

A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified

Ratings Seal applies to L

Wi

A and L

Wo

A values only.

19

QEI-12 Class I & QEI-L


Maximum

Fan RPM

QEI-L

QEI


3800

3800

Maximum

Motor

Frame Size

QEI-L

QEI

184T

184T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

15 in.

.25 kW

381 mm

Approximate Weight


QEI-L 120 lbs.

55 kg.

QEI 160 lbs.

73 kg.




% WOV = (CFM x 100) / (Fan RPM x 1.34)


20

15

10

5

0

10

5 7½ 50% WOV

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

8

6

4

2

3

2

1½

1

¾

½

3

T

H

E

LE

FT

DO

N

OT

S

EL

EC

T

TO

1400

200

0

O

F

TH

IS

S

Y

S

TE

M

C

U

R

VE

2600

3200

3800

70% WOV

80% WOV

90% WOV

0

0 1 2 3 4 5 6

Volume (cfm x 1000)

0 2 4 6 8 10

Performance Data

CFM

1200

OV

764

0.25

0.5

1


1.5

2 2.5

3 3.5

4


1070 0.09

1241 0.15

1549 0.30

1823 0.49

1500

1800

2100

2400

2700

3000

3300

3600

3900

4200

4500

955 1257

1146 1461

1337 1669

1528 1881

1719 2095

1910 2310

2101 2527

2292 2745

0.13

0.19

0.27

0.38

1399

1575

1763

1966

2484 2964

2675 3184

1.39

1.71

3021

3237

2866 3404 2.08

3453

0.20

0.27

0.36

0.48

0.51

2172 0.62

0.68

2382 0.79

2323 0.85

2514 1.04

0.88

2593 1.00

1.11

2806 1.25

2716

2922

1.26

1.53

1.54

1.87

2.25

1661 0.37

1807 0.46

1967 0.56

2139 0.69

3129

3338

3549

1.84

2.19

2.59

1907 0.57

2137

2020 0.67

2228

2162 0.80

2341

2317 0.94

2484

2479 1.11

2636

2657 1.31

2799

2840 1.55

2969

3029 1.82

3150

3231

3435

3641

2.15

2.53

2.95

3335

3527

0.79

2341 1.03

0.91

2423 1.16

1.04

2523 1.31

1.21

2640 1.49

2.49

2.87

3729 3.31

3446

3630

2607 1.43

2690 1.60

2801 1.79

1.40

2785 1.71

1.62

2938 1.94

2926

3072

2.02

2.28

1.86

3100

2.16

3265

2.21

2.50

3226

3387

2.57

2.88

2.86

3551 3.23

3.25

3731 3.65

2776 1.72

2858

2954

1.90

2.11

3016

3099

3067 2.35

3208

3201 2.63

3322

3348 2.94

3467

3503 3.28

3615

3.32

3.68

3665 3.65

3772 4.08

2.22

2.44

2.70

2.98

20

RPM

1400

2000

2600

3200

3800


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

77 78 71 73 67 68 61 52

77 78 69 68 65 64 60 52

78 78 68 65 62 61 60 52

78 77 68 64 62 60 60 52

78 78 78 79 75 75 73 59

74 77 76 75 71 72 66 58

74 76 75 71 68 68 64 58

76 77 75 70 67 67 63 58

83 82 80 80 78 77 83 68

80 82 81 78 75 76 74 65

79 81 79 76 73 74 70 65

81 81 79 75 72 73 69 65

85 85 82 82 81 80 87 79

82 85 83 81 79 78 79 70

83 85 82 81 77 77 74 70

83 84 82 81 77 77 74 70

86 87 85 86 86 84 88 91

80 87 83 83 82 80 80 74

85 88 85 85 80 79 77 74

84 87 84 86 81 80 78 74

82

78

75

74

86

82

80

79

L

Wi

A

75

72

70

69

90

86

84

84

95

88

87

88

RPM

1400

2000

2600

3200

3800


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

87 83 75 74 72 71 63 59

87 81 74 71 70 68 62 58

88 82 74 70 68 67 62 59

89 81 73 70 67 66 62 59

84 84 80 80 80 77 75 64

84 84 77 77 77 75 69 64

85 84 76 75 74 71 67 64

87 84 76 75 73 70 66 64

90 93 83 82 83 80 82 72

92 90 81 79 82 79 75 69

90 89 81 79 79 77 73 69

91 90 81 78 78 76 71 70

93 95 88 85 86 83 86 81

94 92 85 82 85 82 80 74

93 92 85 82 83 81 77 74

95 93 86 81 83 80 76 74

93 94 93 90 90 88 87 92

93 92 89 85 87 84 83 77

96 93 89 85 87 84 81 77

97 94 90 85 87 84 81 77

84

81

79

79

89

86

84

84

L

Wo

A

78

76

75

74

92

89

88

88

97

92

91

92



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-12 Class II


Maximum Fan RPM


4000

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1/3 hp

15 in.



184T

180 lbs.

.25 kW

381 mm

82 kg.


% WOV = (CFM x 100) / (Fan RPM x 1.16)


25

20

15

10

5

0

12

10

5

7½ 50% WOV

60% WOV

8

6

4

2

0

0

1

¾

½

3

2

1½

DO

T

TO

T

H

E

2200

NO

T S

EL

EC

1600

LE

FT

O

F

TH

IS

S

YS

TE

M

C

U

R

VE

2800

3400

1

4000

2 3

Volume (cfm x 1000)

70% WOV

4

RPM

BHP

% WOV


Density 1.2 kg/m 3

80% WOV

90% WOV

5

0 2 4 6 8

Performance Data

CFM OV 0 0.5

1


2 3 4 5 6 7

1400

1600

1800

2000

2200

2400

2600

2800

3000

3200

3400

3600

891

1019 1375

1146 1547

1273 1719

1401 1891

1528

1656

1783

1910

2038

2165


1203 0.08

1460 0.21

1696 0.37

2131 0.75

2510 1.21

2062

2234

2406

2578

2750

2922

0.12

0.17

0.24

0.32

0.41

0.52

0.65

0.80

0.98

1.17

1604

1752

1906

2062

2221

2381

2543

2706

2871

3036

0.26

0.33

0.41

0.50

0.61

0.74

0.88

1.05

1.24

1.45

1812

1943

2080

2223

2370

2519

2673

2829

2987

3145

0.43

0.51

0.60

0.71

0.83

0.97

1.13

1.31

1.51

1.74

2213 0.84

2574

2301 0.93

2641

2410

2522

2921

3064

3209

3356

1.05

1.17

1.66

1.87

2.10

2.35

2728

2817

2653 1.32

2924

2785 1.48

3035

3157

3289

1.31

1.43

1.56

3021 2.13

1.71

3102 2.30

1.88

2.06

2894

2957

3190

3283

2.27

3393

2.49

3504

3421 2.74

3624

3556 3.01

3755

1.84

1.98

2.49

2.70

2.92

3.17

3.44

3.74

3239

3302

3366

3443

3530

3618

3722

3831

3943

2.59

2.76

2.95

3.15

3.38

3.63

3.90

4.19

4.50

3557

3620

3684

3759

3846

3934

3.43

3.64

3.86

4.11

4.38

4.67

3854

3917

3981

4.37

4.62

4.88

2292 3094 1.39

3202 1.68

3305 1.99

3504 2.62

3699 3.32

3887

Shaded values show where Class I fan selections are more efficient than Class II.

4.06

RPM

1600

2200

2800

3400

4000


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

72 77 77 74 70 69 69 56

74 79 75 69 66 67 61 55

73 80 75 66 64 64 58 55

74 80 76 65 63 63 57 54

76 77 78 78 76 75 76 67

76 78 76 74 72 72 68 63

76 79 75 71 70 70 66 62

77 79 75 71 69 68 64 62

83 82 83 80 80 78 78 79

86 86 81 77 76 75 73 68

85 91 79 76 75 75 72 67

86 89 80 76 74 74 70 67

83 86 85 83 83 82 80 85

87 86 83 80 80 79 76 72

87 90 82 79 79 78 76 71

87 89 83 80 78 78 75 71

80 89 86 86 87 86 84 89

82 83 83 81 83 82 79 76

84 82 85 81 82 81 79 75

84 83 85 83 82 81 79 75

82

78

76

76

86

82

82

81

L

Wi

A

77

73

72

72

90

85

85

85

93

88

87

88

RPM

1600

2200

2800

3400

4000


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

87 83 78 75 74 71 69 58

84 85 73 70 71 69 63 58

85 84 73 68 68 66 61 58

87 84 73 68 68 65 60 59

89 85 80 80 80 77 75 67

87 84 77 76 77 74 70 66

88 82 77 74 74 72 67 66

89 83 77 74 74 71 67 66

97 89 86 83 84 81 78 78

91 90 83 80 82 79 75 71

91 87 83 79 80 77 73 71

93 88 83 79 79 76 73 70

98 91 88 86 88 85 81 84

93 90 86 83 85 82 79 75

93 89 86 83 84 81 78 75

95 89 86 83 83 81 77 74

95 90 90 89 91 89 85 87

94 88 87 85 88 86 82 78

94 89 89 85 88 85 82 78

94 89 88 86 87 84 82 78

84

81

79

79

89

86

85

84

L

Wo

A

79

76

75

74

92

89

89

88

96

92

92

91



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

21


QEI-15I


Maximum

Fan RPM

QEI-L

QEI


2721

2721

Maximum

Motor

Frame Size

QEI-L

QEI

184T

213T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

18.25 in.

.25 kW

464 mm

Approximate Weight


QEI-L 140 lbs.

64 kg.

QEI 190 lbs.

82 kg.




% WOV = (CFM x 100) / (Fan RPM x 2.55)


14

12

10

8

6

4

2

0

6

5

4

3

2

1

0

0

3

2

1

½

¼

5

50% WOV

60% WOV

70% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

YS

1018

1283

TE

M

C

U

R

VE

1617

1 2 3

2037

4

2331

Volume (cfm x 1000)

2721

5 6

80% WOV

90% WOV

7

0 2 4 6 8 10

Performance Data

CFM

1700

OV

732

0.25

0.5

1


1.5

2 2.5

3 3.5

4


823 0.12

965 0.21

1229 0.44

2100

2500

2900

3300

3700

4100

4500

4900

5300

5700

6100

905 952

1077 1088

1250 1231

1422 1376

1594 1524

1767 1674

1939 1825

2112 1977

2284 2130

2456 2283

2629 2436

0.17

1072 0.28

0.24

1194 0.36

0.33

1323 0.46

0.44

1456 0.59

0.58

1597 0.74

0.75

1740 0.93

1740 1.11

1870 1.31

0.95

1885 1.14

1.19

2031 1.40

2003

2141

1.55

1.83

1.47

1.79

2.16

2180

2330

2481

1.69

2.03

2.41

1301 0.52

1508

1391 0.62

1580

0.81

0.93

1753

1495 0.75

1615 0.92

2282

2426

2570

2.16

2.52

2.94

1662

1763

1875

1996

2121

2251

1.07

1.25

1.47

1.73

2.01

2.31

1827

1907

2008

2114

2234

2356

2383 2.65

2483

2517 3.04

2657 3.48

2613

1.27

1915 1.64

1.43

1.62

1976

2054

1.83

2.03

1.86

2135 2.27

2.13

2236 2.56

2.45

2339

2.82

2458

2.90

3.29

2122 2.24

2188 2.47

2266

2350

2451

2553

2.73

3.02

3.38

3.77

3.20

3.61

2579

2704

3.73

2672 4.24

4.20

2257 2.68

2317 2.94

2443

2390 3.22

2505

2469 3.52

2583

2556 3.88

2663

2657 4.30

3.42

3.72

4.05

4.41

22

RPM

650

1000

1400

2000

2721


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

63 61 59 56 57 52 48 35

62 59 59 53 54 51 48 35

60 59 57 52 54 51 47 35

60 59 56 52 53 51 47 35

65 66 68 65 60 63 52 44

63 63 65 62 58 56 51 42

63 63 63 60 57 55 50 42

66 64 63 59 57 55 50 42

69 77 73 72 69 67 69 53

68 76 70 68 66 63 58 50

67 70 68 66 65 62 57 50

68 71 70 65 64 61 56 50

73 73 82 81 78 74 77 65

68 76 76 78 74 72 67 61

75 77 77 76 72 70 67 62

81 80 77 76 72 71 67 61

79 78 86 88 86 83 80 83

80 73 83 85 81 79 74 69

78 75 78 81 79 77 73 69

80 79 80 81 78 76 74 70

68

64

63

62

75

71

69

69

L

Wi

A

60

59

58

58

84

80

78

78

91

86

84

83

RPM

650

1000

1400

2000

2721


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

74 65 60 58 59 54 52 39

69 64 59 57 57 55 52 40

70 64 58 56 57 54 52 40

71 64 58 56 57 55 52 40

73 73 66 68 65 64 55 47

75 74 64 66 63 60 56 47

76 73 64 65 62 59 55 47

77 74 64 65 62 59 55 47

79 79 74 74 73 69 70 56

79 74 72 71 71 67 61 55

77 75 73 69 68 66 61 55

80 75 72 69 68 65 61 55

83 82 81 83 82 78 78 68

79 78 77 79 79 75 70 63

83 81 78 77 77 74 69 64

86 83 79 77 76 73 69 64

91 85 87 90 90 86 82 84

88 83 81 84 86 84 78 72

87 87 83 82 83 81 77 71

90 89 85 83 83 81 76 72

70

68

68

68

78

74

73

73

L

Wo

A

63

62

61

61

86

82

81

81

94

90

88

88



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-15 Class II

QEI-15II


Maximum Fan RPM


3445

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1/3 hp



215T

.25 kW

18.25 in.

464 mm

220 lbs.

100 kg.


% WOV = (CFM x 100) / (Fan RPM x 2.20)


20

15

10

5

0

5

4

3

2

1

0

0

10

9

8

7

6

7½

50% WOV

60% WOV

10

5

70% WOV

3

2

1

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

Y

1666

S

TE

M

C

U

R

VE

2099

1 2 3

2402

4

2847

5

Volume (cfm x 1000)

3259

3445

6

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

80% WOV

7

90% WOV

8

2 4 6 8 10 12 0

Performance Data

CFM OV


0.5

1 2 3 4 5 6 7 8


2500

2800

3100

3400

3700

4000

4300

4600

4900

5200

5500

5800

1077

1206

1336

1465

1594

1724

1853

1982

1315

1436

1559

1684

1810

1938

2067

2197

2112 2328

2241 2460

0.42

1471 0.64

0.53

1575 0.77

0.65

0.79

0.96

1926 1.30

1.15

2047 1.52

1.37

2170 1.76

1.61

2294 2.04

1.89

2.20

1687

1805

2420

2546

2370 2592 2.55

2673

2500 2724 2.93

2802

0.92

1.10

2353 2.50

2471 2.84

2.34

2590 3.22

2.67

2710 3.64

3.04

3.45

1790

1864

1948 1.54

2034 1.72

2137

2242

2831

2953

1.23

1.38

1.95

2.21

4.07

4.53

2082

2131

2201

2275

2358

2443

2538

2641

2746

2856

2973

3092

1.91

2.09

2.29

2.51

2.75

3.01

3.31

3.67

4.05

4.49

4.99

5.53

2392

2435

2500

2570

2647

2730

2816

2908

3011

3115

3221

2.88

3.11

3.36

3.64

3.94

4.26

4.61

5.01

5.47

5.96

6.50

2670

2713

2771

2841

2913

2995

3080

3165

3259

3362

3.99

4.28

4.59

4.92

5.29

5.67

6.09

6.53

7.04

7.61

2884

2926

2968

3023

3093

3164

3243

3326

3411

4.93

5.25

5.59

5.96

6.36

6.78

7.24

7.72

8.23


3122 6.28

3164 6.66

3347

3207 7.05

3389

3261 7.48

3431

3331 7.94

3402 8.43

7.76

8.20

8.65

RPM

1000

1400

2000

2700

3445


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

64 70 70 72 66 65 55 48

62 66 67 66 63 60 52 43

61 62 63 62 61 58 51 42

62 63 63 62 60 58 51 41

67 69 73 74 71 72 64 56

66 65 71 72 68 67 61 53

67 66 68 68 66 65 58 51

69 67 69 67 65 63 57 52

71 73 78 77 77 75 79 66

67 69 76 75 74 73 70 62

71 71 74 74 72 71 68 61

75 74 76 74 72 71 67 61

78 78 79 85 85 83 87 77

79 74 76 85 84 80 77 71

81 78 77 82 82 78 75 70

81 80 79 82 81 78 74 70

79 82 84 89 90 88 91 87

75 79 81 85 87 85 83 78

79 83 82 82 84 83 81 77

81 85 85 86 85 82 80 77

78

75

71

71

84

79

77

77

L

Wi

A

73

68

65

65

91

88

85

85

96

91

89

90

RPM

1000

1400

2000

2700

3445


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

76 75 69 72 70 67 55 47

75 72 67 67 68 62 53 44

75 72 67 64 66 60 53 44

75 71 67 64 65 60 52 44

80 76 74 76 76 73 66 56

78 74 71 72 74 69 62 52

79 75 71 70 72 67 60 52

79 75 71 70 72 67 60 52

90 81 81 83 82 78 79 66

88 78 77 79 80 76 72 65

87 82 78 77 78 74 69 63

89 83 79 78 78 73 69 64

87 85 85 88 90 86 86 78

85 85 83 83 88 83 79 72

88 89 87 82 86 81 77 71

89 90 87 83 86 80 77 72

91 90 91 93 95 93 92 89

89 92 91 89 92 89 86 80

92 94 93 87 90 87 84 79

93 94 93 89 90 87 83 78

80

77

75

75

87

84

82

82

L

Wo

A

74

71

69

68

94

90

89

89

100

96

94

94



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

23


QEI-16I


Maximum

Fan RPM

QEI-L

QEI


2300

2483

Maximum

Motor

Frame Size

QEI-L

QEI

184T

213T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

20 in.

.25 kW

508 mm

Approximate Weight


QEI-L 160 lbs.

73 kg.

QEI 220 lbs.

100 kg.




% WOV = (CFM x 100) / (Fan RPM x 3.36)


16

14

12

10

8

6

4

2

0

7

6

5 7½

50% WOV

60% WOV

70% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

5

4

3

2

1

0

0

3

1½

¾

1 /

3

DO

NO

T S

EL

EC

T

TO

961

T

H

E

LE

FT

O

F

TH

IS

S

YS

TE

M

C

U

R

VE

1587

1260

1 2 3 4

2000

5

2371

2300

2483

Volume (cfm x 1000)

6 7

80% WOV

90% WOV

8 9

0 2 4 6 8 10 12 14

Performance Data

CFM

2400

OV

860

0.25

0.5

1


1.5

2 2.5

3 3.5

4


837 0.19

951 0.31

1169 0.59

1362 0.94

2800

3200

3600

4000

4400

4800

5200

5600

6000

6400

6800

1003 939

1146 1046

1290 1155

1433 1266

1577 1378

1720 1492

1863 1607

2007 1722

0.25

0.33

0.43

0.55

1039

1134

1235

1338

2150 1837

2293 1954

1.52

1.81

1886

1999

2437 2070 2.14

2113

0.39

0.48

0.59

0.72

0.69

1445 0.88

0.85

1554 1.06

1573 1.29

1673 1.50

1.05

1664 1.27

1.27

1774 1.51

1774

1878

1.74

2.01

1.77

2.08

2.42

1230 0.69

1307 0.81

1389 0.95

1479 1.11

1984

2092

2201

2.31

2.64

3.01

1411 1.05

1576

1471 1.18

1625

1538 1.33

1684

1616 1.52

1747

1700 1.73

1824

1789 1.97

1901

1880 2.24

1989

1979 2.54

2078

2080 2.87

2181 3.23

2284 3.63

1.45

1.60

1.77

1.96

1770

1820

1879

2170 3.45

2265

2269 3.84

2355

2369 4.27

2449

2.06

2.25

2.46

2.20

1940 2.69

2.46

2016 2.98

2062

2121

3.25

3.52

2.76

2093

3.09

2177

3.30

3.65

2198

2274

3.87

4.25

4.04

4.47

4.93

1904 2.54

1950 2.76

2002 2.99

2355

2443

4.66

5.11

2073 3.29

2188

2119 3.55

2233

2174 3.83

2280

2234 4.13

2338

3.85

4.13

4.43

4.76

2294 4.46

2399

2371 4.86

2461

5.11

5.49

2447 5.29

24

RPM

600

900

1250

1750

2483


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

65 62 60 57 57 52 47 34

64 61 59 55 55 52 47 35

62 60 57 53 54 52 47 35

62 60 57 53 54 52 47 35

65 67 68 65 61 62 51 43

64 64 65 62 58 56 50 41

63 63 63 60 57 55 49 41

66 65 63 60 57 55 49 41

71 78 73 72 69 67 67 51

69 78 70 68 65 62 57 49

68 71 68 66 65 61 57 50

69 73 69 65 64 60 55 50

73 75 81 80 77 75 75 62

69 76 76 77 73 71 66 59

75 77 77 75 71 70 66 60

80 80 77 75 71 70 66 60

80 80 88 88 86 83 81 84

80 75 84 85 81 79 74 69

78 77 80 82 79 77 74 70

81 80 82 81 78 77 74 70

68

64

63

62

75

71

69

69

L

Wi

A

61

59

59

58

83

79

77

77

92

87

84

84

RPM

600

900

1250

1750

2483


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

75 66 60 59 60 55 51 39

70 65 60 58 58 55 51 39

71 64 59 57 58 55 51 40

72 64 59 57 57 55 51 40

74 73 67 68 65 63 55 46

76 73 65 66 63 60 55 46

76 72 64 65 62 59 54 46

77 73 65 65 62 59 54 46

80 80 74 74 72 70 68 54

78 75 72 71 70 66 61 54

77 75 72 69 68 65 60 55

79 76 72 69 68 65 60 55

82 82 81 83 81 78 76 65

79 78 77 79 78 74 69 62

83 80 77 77 76 73 68 62

86 82 79 77 75 72 68 63

91 86 88 90 90 87 83 85

88 84 82 85 87 84 78 72

88 88 85 83 84 81 77 72

90 89 86 84 84 81 77 72

70

68

67

67

77

74

73

73

L

Wo

A

64

62

62

62

86

82

80

80

94

90

88

88



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-16 Class II

QEI-16II


Maximum Fan RPM


3145

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1/3 hp

20 in.



215T

.25 kW

508 mm

240 lbs.

109 kg.


% WOV = (CFM x 100) / (Fan RPM x 2.89)


25

20

15

10

5

0

12

11

10

6

5

4

3

2

9

8

7

1

0

0

7½

10

15 50% WOV

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

70% WOV

5

3

2

1

C

U

R

VE

DO

NO

T

SE

LE

CT

T

O

T

H

E

LE

FT

O

F

TH

IS

1430

1801

S

Y

ST

EM

2062

1 2 3 4

2444

5

2797

6

3145

Volume (cfm x 1000)

7 8

80% WOV

90% WOV

9 10

0 2 4 6 8 10 12 14 16

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

3000

3300

3600

3900

4200

4500

4800

5100

5400

5700

6000

6300


1075 1199 0.50

1342 0.77

1633 1.48

1900 2.29

1182

1290

1397 1478

1505 1574

1612

1720

1827

1935

2043

2150

1291

1384

1670

1767

1865

1964

2063

2163

0.61

1421 0.89

0.73

1503 1.03

0.86

1.01

1592

1683

1.20

1.39

1.18

1774 1.61

1.38

1867 1.83

1688

1750

1965

2045

2307

2398

1.62

1.78

1816 1.95

1887 2.16

2.39

2.65

1.59

1960 2.06

1.83

2054 2.33

2128

2217

2.94

3.27

2.10

2.39

2149

2245

2.62

2.93

3.63

4.02

1934 2.47

2176

1987 2.66

2209

2041

2100

2299

2377

2.88

3.10

3.91

4.26

2249

2302

2163 3.35

2356

2229 3.61

2415

2478

2543

3.41

3.63

3.88

4.14

4.42

4.73

2424

2456

2488

2539

2592

5.05

2646

5.39

2707

2457 4.63

2608

2537 5.03

2684

5.76

6.19

2770

2835

4.68

4.96

5.25

5.57

5.91

6.27

6.65

7.05

7.48

2650

2682

2715

2758

2811

2865

2920

2983

6.11

6.44

6.78

7.15

7.55

7.97

8.41

8.87

2861

2893

2926

2964

3017

3071

3125

7.68

8.07

8.46

8.88

9.34

9.82

10.3

3060

3092

3124

9.40

9.84

10.3

2258 2263 2.71

2341 3.27

2489 4.45

2623 5.48

2762 6.66

2900


7.93

3046 9.36

RPM

900

1250

1750

2475

3145


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

66 71 71 72 66 64 54 47

63 67 67 66 63 59 51 42

62 63 63 63 61 57 50 41

63 64 63 62 60 57 50 40

68 70 73 74 71 71 63 55

66 67 71 72 69 67 60 52

67 66 68 68 66 64 57 51

69 68 69 67 65 63 57 51

71 74 78 77 77 76 77 63

67 70 77 74 73 72 68 61

71 72 74 73 72 70 66 60

74 74 76 74 71 70 65 60

79 79 81 86 86 84 86 77

80 75 78 86 84 80 77 71

82 79 78 83 82 78 75 70

82 81 80 83 82 78 74 70

81 84 85 91 91 89 92 87

77 80 81 86 88 85 83 78

81 84 83 83 85 83 81 77

83 86 86 87 85 83 80 77

77

74

71

70

83

79

77

77

L

Wi

A

72

68

65

65

92

88

86

86

97

92

90

90

RPM

900

1250

1750

2475

3145


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

77 76 70 72 70 66 55 47

75 73 67 67 67 61 52 43

75 73 67 65 65 60 52 43

75 72 67 64 65 59 52 43

80 76 75 77 76 72 64 54

78 74 71 73 73 68 60 51

79 74 71 71 72 66 59 51

78 75 71 70 71 66 59 51

88 81 82 83 81 78 76 63

86 78 77 79 79 75 70 63

86 81 78 77 77 73 68 62

88 82 79 78 77 72 68 62

88 86 86 89 91 87 86 78

86 86 84 84 88 83 79 72

89 90 87 83 86 81 77 71

90 91 87 84 86 81 77 72

92 91 92 94 96 93 93 90

90 93 91 90 93 90 86 80

93 95 93 88 91 88 84 79

94 95 94 90 91 87 83 79

79

76

75

75

86

83

81

81

L

Wo

A

74

71

69

68

95

91

90

89

100

97

95

95



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

25


QEI-18I


Maximum

Fan RPM

QEI-L

QEI


2232

2232

Maximum

Motor

Frame Size

QEI-L

QEI

215T

215T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

22.5 in.

.25 kW

565 mm

Approximate Weight


QEI-L 190 lbs.

87 kg.

QEI 260 lbs.

118 kg.




% WOV = (CFM x 100) / (Fan RPM x 4.50)


16

14

12

10

8

6

4

2

0

7

7½

50% WOV

6

5

60% WOV

5

4

3

2

1

0

0

3

1½

¾

1 /

3

DO

NO

T

SE

LE

CT

T

O

T

H

E

LE

FT

O

F

TH

IS

S

1089

831

Y

ST

EM

C

U

R

VE

1372

1 2 3 4 5

1729

6

2050

7

Volume (cfm x 1000)

2232

8

70% WOV

9

RPM

BHP

% WOV


Density 1.2 kg/m 3

80% WOV

90% WOV

10 11

0 2 4 6 8 10 12 14 16 18

Performance Data

CFM

2600

OV

753

0.25

0.5

1


1.5

2 2.5

3 3.5

4


697 0.17

814 0.30

1026 0.62

3100

3600

4100

4600

5100

5600

6100

6600

7100

7600

8100

898

1043

788

886

1188 986

1333 1088

1478 1192

1623 1298

1768 1405

1913 1513

2057 1620

2202 1729

2347 1837

0.23

0.31

889

972

0.37

0.46

0.42

1062 0.58

0.54

1156 0.72

0.69

1254 0.89

0.87

1355 1.09

1376 1.32

1466 1.55

1.08

1456 1.32

1.33

1558 1.58

1558

1653

1.81

2.11

1.62

1.94

2.31

1662

1768

1875

1.88

2.23

2.61

1080 0.72

1250

1142 0.84

1300

1.12

1.26

1407

1445

1213 0.97

1293 1.13

1752

1851

1952

2.44

2.82

3.24

1358

1425

1498

1578

1660

1748

1.43

1.61

1.81

2.06

2.33

2.66

1494

1552

1616

1686

1763

1843

1.57

1.73

1583 2.24

1.92

2.14

1622

1672

2.45

2.70

2.37

1730 2.96

2.62

1793 3.25

2.92

1862

3.26

1936

3.56

3.91

1746 3.03

1785 3.28

1839

1897

1959

2029

3.58

3.91

4.25

4.62

1840 3.02

1926

1932 3.43

2015

3.63

4.07

2016

2097

2028 3.88

2106 4.56

2182

4.31

4.75

5.25

2100

2180

5.02

5.49

1861 3.63

1899 3.91

2006

1940 4.22

2044

1997 4.58

2090

4.57

4.91

5.28

2055 4.96

2148

2118 5.37

2206

5.69

6.14

2187 5.79

26

RPM

550

800

1100

1600

2232


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

65 68 68 64 57 52 49 41

61 67 68 64 56 52 48 40

60 67 68 64 56 52 48 39

62 67 67 64 56 51 48 39

66 70 69 64 59 61 49 41

62 66 68 62 58 56 49 40

61 64 66 60 55 55 49 40

64 64 66 59 55 54 48 40

70 78 73 72 67 68 66 53

64 78 73 69 64 62 57 51

66 73 70 67 62 61 57 52

69 73 70 66 61 61 56 52

77 80 87 82 78 75 77 64

76 75 80 78 74 72 67 61

78 77 83 75 71 70 66 62

79 78 82 76 70 69 66 62

80 83 92 89 87 84 81 83

74 78 87 85 85 81 76 71

80 79 82 82 82 78 74 70

83 82 83 82 81 77 74 71

67

65

63

63

75

71

69

69

L

Wi

A

65

65

65

64

85

80

79

78

92

89

86

85

RPM

550

800

1100

1600

2232


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

74 74 67 66 63 55 53 45

72 73 68 68 62 56 56 50

69 72 67 67 62 56 56 51

69 72 67 67 62 56 57 52

74 75 68 67 64 62 54 43

71 73 66 65 63 58 54 43

72 70 66 63 62 57 54 43

72 70 65 63 61 57 54 43

77 84 75 74 72 68 65 51

73 80 70 71 69 64 59 50

75 77 69 69 67 63 58 50

77 77 70 69 66 62 58 51

82 83 84 84 83 77 75 64

78 83 80 80 80 75 70 64

82 82 77 78 77 74 69 64

86 84 78 78 76 73 69 64

88 87 91 93 92 87 82 82

83 83 85 89 90 85 79 72

88 89 83 87 88 82 77 71

93 92 85 86 87 81 76 72

70

68

66

66

77

74

72

71

L

Wo

A

68

68

68

68

87

83

81

81

95

93

91

90



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-18 Class II

QEI-18II


Maximum Fan RPM


2777

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1/3 hp

254T

22.25 in.

310 lbs.

.25 kW

565 mm

141 kg.




% WOV = (CFM x 100) / (Fan RPM x 3.80)


25

20

15

10

5

0

12

11

10

10

15

50% WOV

60% WOV

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

3

2

6

5

9

8

7

4

1

0

0

7½

5

3

2

1

1

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

1219

1535

YS

TE

M

C

U

R

VE

1757

2 3 4 5

2083

6

2385

7

Volume (cfm x 1000)

2624

2777

8

70% WOV

9

80% WOV

90% WOV

10 11

0 5 10 15

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

3800

4200

4600

5000

5400

5800

6200

6600

7000

7400

7800

8200


1101 1124 0.64

1239 0.97

1467 1.74

1690 2.65

1900 3.67

1217

1333

1219

1315

1449 1413

1565 1511

0.79

0.96

1.16

1.40

1326

1414

1503

1595

1.14

1.34

1.56

1.82

1538

1609

1682

1758

1.98

2.25

2.50

2.77

1738 2.88

1934

1787 3.15

1977

1858

1929

3.50

3.89

2024

2079

3.94

4.24

4.56

4.94

2120

2154

2193

2241

5.09

5.42

5.78

6.18

2290

2323

2356

2394

6.31

6.69

7.09

7.51

2478

2511

2545

8.02

8.47

8.93

2656

2689

9.91

10.4

2582 9.42

2723

2629 9.97

2760

10.9

11.5

1681 1611

1797 1711

1913 1812

2028 1913

2144 2015

2260 2117

1.66

1690 2.11

1.96

1786 2.44

2.29

1883

2.66

1981

2.81

3.21

1844

1932

2020

2110

3.11

3.48

3.89

4.34

3.07

2079

3.53

2178

3.66

2200 4.83

4.16

2295 5.38

2001 4.29

2150

2075 4.66

2221

2150 5.07

2293

2236 5.57

2366

2323 6.12

2411 6.70

5.42

5.94

6.50

6.98

2289

2354

2424

2495

2440 7.49

2568

2521 8.10

2641

6.60

7.14

7.76

8.42

9.11

9.71

2441

2489

2544

2615

2686

2757

7.98

8.48

9.06

9.77

10.5

11.3

2676

2726

10.5

11.2

2376 2219 4.03

2277 4.70

2390 5.98

2500 7.34

2608 8.78

2715


10.4

RPM

800

1100

1600

2200

2777


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

66 75 67 66 63 65 51 43

63 71 64 63 62 62 51 41

62 69 63 61 62 63 53 42

77 73 69 65 62 62 50 41

70 78 72 72 68 72 60 51

62 73 68 67 66 66 57 48

63 72 66 66 65 66 57 49

66 72 67 65 64 65 56 49

78 79 82 80 78 76 80 64

71 76 77 75 74 73 67 60

73 76 74 73 72 72 67 61

77 77 76 73 72 71 66 61

81 84 89 88 87 84 87 78

75 78 83 83 82 80 76 69

79 81 84 81 79 78 75 71

83 83 84 81 78 77 74 70

85 88 89 93 93 90 91 87

80 83 85 89 90 87 82 76

84 86 85 88 87 85 80 76

87 89 89 88 86 84 80 76

76

71

71

70

85

79

77

77

L

Wi

A

70

67

67

68

93

87

85

85

98

93

91

91

RPM

800

1100

1600

2200

2777


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

73 79 66 69 68 66 54 45

70 76 63 67 66 63 53 46

70 74 63 65 66 63 53 46

70 75 63 65 65 62 53 47

78 83 74 76 74 72 63 53

73 77 69 73 72 68 60 50

75 75 68 71 71 68 60 52

77 77 70 71 70 68 60 53

87 86 83 85 84 78 79 64

84 80 77 81 80 75 70 61

85 80 77 79 78 74 70 62

86 82 78 79 77 74 69 62

89 89 91 92 91 86 86 80

85 86 85 88 89 83 79 73

89 88 86 86 87 82 78 73

91 89 88 87 86 81 77 73

93 94 93 96 97 93 91 88

88 91 89 92 94 90 86 79

94 94 92 89 92 88 84 79

96 95 92 91 92 88 84 79

79

76

74

75

88

84

82

82

L

Wo

A

72

70

70

69

96

92

90

90

101

97

95

96



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

27


QEI-20 Class 1


Maximum

Fan RPM

QEI-L

QEI


1900

2027

Maximum

Motor

Frame Size

QEI-L

QEI

215T

215T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

24.5 in.

.25 kW

622 mm

Approximate Weight


QEI-L 230 lbs.

105 kg.

QEI 310 lbs.

141 kg.




% WOV = (CFM x 100) / (Fan RPM x 6.01)


14

12

10

8

6

4

2

0

6

5

7½ 50% WOV

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

5

10

4

3

2

1

0

0

3

2

1

½

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

818

1021

IS

S

Y

S

TE

M

C

U

R

VE

1287

1 2 3 4 5 6

1473

7

1746

8

1900

Volume (cfm x 1000)

2027

9

70% WOV

10

80% WOV

11

90% WOV

12 13

0 5 10 15 20

Performance Data

CFM

3000

OV

724

0.25

0.5

1


1.5

2 2.5

3 3.5

4


613 0.19

724 0.35

923 0.73

3700

4400

5100

5800

6500

7200

7900

8600

893

1062

1231

1400

1570

1739

1908

2077

708

810

915

1023

1133

1245

1357

1470

9300 2246 1584

10000 2415 1698

10700 2584 1812

0.27

0.39

801

887

0.44

0.57

0.53

982 0.74

0.72

1082 0.95

0.95

1187 1.20

1.23

1292 1.50

1292 1.74

1388 2.09

1.56

1400 1.86

1.96

1508 2.28

1486

1590

2.49

2.95

2.41

2.94

3.55

1619

1731

1843

2.76

3.32

3.95

975 0.86

1132

1040 1.02

1183

1.34

1.54

1314

1116 1.21

1201 1.45

1694

1800

1907

3.48

4.08

4.76

1245

1317

1398

1483

1574

1669

1.78

2.03

2.34

2.71

3.15

3.66

1368

1428

1501

1577

1662

1748

1766 4.23

1842

1868 4.88

1972 5.60

1937

2.11

1440 2.73

2.38

2.70

1480

1538

3.03

3.38

3.03

1599 3.78

3.41

1671 4.19

3.88

1746

4.40

1830

4.66

5.22

1593 3.73

1637 4.11

1697

1759

1832

1907

4.54

5.02

5.52

6.07

5.01

5.71

1915

2005

5.84

1990 6.74

6.56

1697 4.47

1738 4.88

1835

1789 5.34

1875

1849 5.86

1934

1913 6.42

1994

1985 7.02

5.69

6.17

6.74

7.35

28

RPM

500

700

1000

1450

2027


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

66 69 68 64 57 53 49 40

63 69 68 64 56 52 48 40

62 69 68 64 56 52 48 39

64 68 68 64 56 52 48 39

66 70 68 63 60 59 48 40

62 67 67 62 57 55 48 38

61 65 65 59 55 54 47 39

63 65 65 59 55 53 47 38

72 79 74 72 68 69 65 52

67 79 73 69 65 62 57 51

68 74 70 67 63 61 57 52

71 74 70 66 62 61 57 52

79 82 87 82 78 76 76 63

77 77 81 78 75 72 67 61

79 79 82 76 71 70 66 63

80 80 82 76 71 69 66 63

82 85 93 90 88 84 82 84

76 80 88 86 85 81 76 71

81 81 83 83 82 78 74 71

84 83 84 83 81 77 74 71

66

64

62

62

75

72

70

69

L

Wi

A

65

65

65

65

85

80

79

79

93

89

86

86

RPM

500

700

1000

1450

2027


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

75 74 68 67 62 56 53 45

73 73 68 68 62 56 56 50

71 72 68 68 62 57 56 51

70 72 68 67 62 57 57 52

74 74 68 66 64 60 52 41

72 72 66 64 62 58 52 41

71 69 65 63 61 57 52 41

71 69 65 62 61 56 52 41

79 84 75 75 72 68 64 50

75 80 71 72 70 64 58 50

76 77 70 70 67 63 58 50

78 77 70 69 67 63 58 51

83 84 85 85 83 77 74 63

79 82 81 81 80 75 69 63

83 81 78 79 78 74 69 64

86 83 79 79 76 73 69 64

89 89 92 93 92 87 83 83

84 84 86 90 90 85 79 72

89 89 85 88 88 82 77 72

93 92 86 87 87 81 76 72

69

67

66

65

77

74

72

72

L

Wo

A

68

69

68

68

87

84

82

81

96

93

91

90



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-20 Class II

QEI-20II


Maximum Fan RPM


2517

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1/3 hp

24.5 in.

254T

360 lbs.

.25 kW

622 mm

163 kg.




% WOV = (CFM x 100) / (Fan RPM x 5.07)


20

15

10

5

0

10

9

8

7½

10 15 50% WOV

60% WOV

70% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

7

6

5

4

3

2

1

0

0

5

3

1½

DO

NO

T S

EL

EC

T

TO

T

HE

L

EF

T

O

F

TH

IS

S

YS

TE

M

C

U

R

VE

1188

1497

1 2 3 4 5

1774

6

2030

7

2235

8

Volume (cfm x 1000)

2517

9 10

80% WOV

11

90% WOV

12 13

0 5 10 15 20

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

4500

5000

5500

6000

6500

7000

7500

8000

8500

9000

9500


1076 1002 0.74

1110 1.14

1319 2.05

1526 3.15

1719 4.38

1196

1315

1090

1181

1435 1272

1555 1364

1674

1794

1913

2033

1457

1551

1645

1740

0.92

1189 1.34

1.13

1271 1.58

1.38

1.66

1355

1440

1.86

2.18

1.99

1529 2.54

2.36

1619 2.95

1384

1451

1670

1751

2.34

2.67

1519 2.99

1589 3.32

3.74

4.20

2.77

1710 3.40

3.24

1801 3.91

1834

1918

4.72

5.28

1570 3.44

1750

1615 3.75

1788

1679

1745

1813

1882

1953

2033

4.19

4.67

5.18

5.64

6.14

6.77

1833

1882

1948

2015

2082

2151

4.71

5.08

5.48

5.94

6.53

7.18

7.88

8.48

1920

1951

1986

2031

2075

2135

2201

2268

6.10

6.51

6.95

7.44

7.96

8.64

9.40

10.2

2105

2136

2170

2214

2258

2310

2376

8.04

8.53

9.05

9.64

10.3

11.0

11.9

2246

2277

2308

2342

2386

2430

2477

9.65

10.2

10.8

11.4

12.1

12.8

13.5

2408

2439

2471

2505

11.9

12.6

13.2

13.9

2153 1835

2272 1930

3.75

1893

4.33

1986

4.48

2003 5.90

5.10

2092 6.59

2115 7.45

2197 8.20

2220 9.12

2336

2297 9.89

2404

11.1

2443 12.8

11.8

2510 13.8

10000 2392 2026 4.96

2079 5.78

2181 7.34

2280 9.00

2378 10.7

2474


12.6

RPM

700

1000

1450

2000

2517


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

68 74 67 66 64 62 49 42

65 70 64 63 62 60 49 39

64 68 62 61 62 61 51 40

76 72 68 65 62 60 48 40

72 80 73 72 70 71 60 51

64 75 69 68 67 65 56 48

65 74 67 67 66 65 57 49

68 74 68 66 65 65 56 49

79 80 82 81 79 77 79 63

73 77 77 76 75 73 67 59

75 77 75 73 72 72 67 61

78 78 77 74 72 71 67 61

82 86 91 89 87 85 87 78

76 80 85 84 83 80 76 69

81 83 85 81 80 78 75 71

84 84 85 82 79 78 75 71

88 89 90 94 94 90 92 87

82 85 86 90 91 87 82 76

86 87 85 89 87 85 80 76

89 90 90 89 87 85 80 77

76

72

71

71

85

79

78

78

L

Wi

A

69

66

66

68

93

87

86

85

99

94

92

92

RPM

700

1000

1450

2000

2517


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

74 76 66 69 67 63 52 43

71 73 64 67 66 61 52 44

71 72 63 65 65 61 52 45

71 72 64 65 65 61 52 46

80 85 75 76 75 72 63 52

75 78 70 74 72 68 60 50

76 77 69 71 71 68 60 52

78 79 71 71 71 68 60 52

88 86 84 86 83 79 77 63

84 81 78 82 81 75 70 61

85 80 78 80 79 74 69 62

86 82 79 79 78 74 69 62

90 90 92 93 91 87 86 80

86 87 87 89 89 83 79 73

90 88 87 87 87 82 78 73

92 90 89 87 86 82 78 73

95 94 93 97 98 93 92 89

90 92 89 93 96 90 86 79

95 94 92 90 93 88 85 79

97 96 93 92 93 88 84 79

79

76

75

75

88

84

83

82

L

Wo

A

71

70

69

69

96

92

90

90

102

98

96

96



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

29


QEI-22I


Maximum

Fan RPM

QEI-L

QEI


1800

1839

Maximum

Motor

Frame Size

QEI-L

QEI

215T

254T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

27 in.

.25 kW

686 mm

Approximate Weight


QEI-L 270 lbs.

123 kg.

QEI 370 lbs.

168 kg.




% WOV = (CFM x 100) / (Fan RPM x 8.60)


14

12

10

8

6

4

2

0

6

7½

10 50% WOV

60% WOV

5

5

4

3

2

1

0

0

3

2

1

½

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

680

TH

IS

857

S

YS

TE

M

C

U

R

VE

1080

2 4 6

1236

8

1465

10

Volume (cfm x 1000)

1677

12

RPM

BHP

% WOV


Density 1.2 kg/m 3

70% WOV

80% WOV

14

90% WOV

16

0 5 10 15 20 25

Performance Data

CFM

3900

OV

762

0.25

0.5

1


1.5

2 2.5

3 3.5

4


564 0.25

662 0.44

837 0.93

4700

5500

6300

7100

918

1075

1231

1388

7900

8700

1544 979

1700 1068

9500 1857 1156

10300 2013 1246

641

723

806

892

11100 2170 1335

11900 2326 1426

12700 2482 1516

0.34

0.45

0.60

0.79

725

796

872

953

1.02

1035 1.33

1.29

1118 1.62

1.61

1204 1.97

1.98

1290 2.37

0.55

0.69

0.87

1.08

2.41

1377 2.83

2.90

1465 3.35

3.46

1554 3.94

883

935

1.07

1023

1.25

1066

997 1.46

1116

1065 1.72

1173

1.68

1.90

1184 2.61

2.14

1228

2.43

1277

2.90

3.22

1301

1329

1376

3.38

3.72

4.08

1137 2.01

1236

1213 2.35

1305

2.77

3.15

1332

1394

1293 2.75

1374 3.20

1377

1451

3.59

4.08

1458

1529

3.60

4.02

4.49

5.03

1425

1480

1541

1603

4.49

4.94

5.46

6.03

1456 3.70

1539 4.27

1624 4.91

1530 4.64

1602

1610 5.26

1676

1691 5.95

1755

5.63

1673 6.67

6.29

1745 7.38

7.03

1818 8.16

1434 4.58

1466 4.99

1560

1515 5.44

1564 5.93

1598

1646

5.94

6.44

6.97

1650

1678

1723

1619

1680

1742

6.48

7.09

7.76

1809 8.51

1696 7.54

1772

1751 8.19

1822

1813 8.91

6.93

7.47

8.05

8.67

9.34

30

RPM

450

650

900

1300

1839


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

68 69 64 60 59 59 52 38

67 68 62 59 57 59 52 38

66 67 60 58 56 58 52 38

67 68 60 58 55 58 52 38

70 75 70 67 64 65 54 43

67 75 68 64 61 61 54 41

67 74 65 62 59 60 53 41

68 73 65 62 58 60 53 41

73 79 78 74 71 72 61 53

69 76 77 71 68 66 58 50

70 73 74 68 66 63 56 50

72 74 74 67 65 62 55 49

76 89 85 83 81 78 79 65

72 91 83 79 78 75 69 61

74 83 79 76 74 71 65 61

78 83 79 75 73 69 64 62

81 86 99 94 91 88 88 77

79 82 95 92 87 84 80 72

80 82 87 87 84 81 76 71

84 84 86 86 82 79 75 71

70

68

66

66

78

74

72

71

L

Wi

A

65

64

63

63

87

83

79

78

97

93

89

87

RPM

450

650

900

1300

1839


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

71 71 65 64 65 62 56 44

71 70 63 63 64 62 57 44

69 69 62 62 64 62 57 44

72 70 61 61 64 62 57 45

78 75 70 69 67 66 57 47

76 74 70 69 67 65 58 47

75 74 69 67 66 65 58 48

75 74 69 65 65 65 58 48

77 83 77 78 75 73 64 53

73 80 74 76 73 69 62 51

74 78 72 72 71 67 60 51

77 79 72 71 70 66 60 51

83 84 84 86 85 81 79 64

81 82 80 83 82 77 71 60

84 81 78 79 77 72 66 59

88 83 79 78 76 71 65 60

87 89 91 96 93 90 88 79

86 84 90 92 90 87 82 72

91 89 87 89 87 83 78 71

94 91 88 88 85 81 76 71

72

72

71

71

80

78

75

74

L

Wo

A

69

68

68

68

89

85

81

81

98

94

91

90



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-22 Class II

QEI-22II


Maximum Fan RPM


2265

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1/3 hp

27 in.

256T

420 lbs.

.25 kW

686 mm

191 kg.




% WOV = (CFM x 100) / (Fan RPM x 7.17)


20

15

10

5

0

10

10

15

20

60% WOV

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

8

6

4

2

0

0

7½

5

2

DO

NO

T

SE

LE

CT

T

O

T

H

E

LE

FT

O

F

TH

IS

S

1095

Y

S

TE

M

C

U

R

VE

1485

2 4 6 8

1700

1871

10

2141

Volume (cfm x 1000)

2265

12

70% WOV

14

80% WOV

90% WOV

16 18

0 5 10 15 20 25 30

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

5600

6200

6800

7400

8000

1093

1210

1328


882 0.81

982 1.29

1174 2.43

1360 3.80

956

1032

1445 1109

1562 1187

1.00

1.22

1.47

1.76

1045

1115

1185

1257

1.51

1.75

2.03

2.34

1222 2.69

1273 2.97

1335

1396

3.32

3.71

1395

1434

1480

1531

4.11

4.43

4.81

5.22

1564

1588

1626

1666

5.70

6.07

6.49

6.94

1746

1762

1801

7.86

8.32

8.83

1912

1925

10.3

10.8

2065 13.0

2195 15.2

1588 5.69

1714

1649 6.23

1764

7.45

1840 9.37

8.00

1882 9.96

1962

2001

11.4

12.1

2078 13.6

2209

2113 14.3

2222

15.9

16.6

8600

9200

1679 1265

1796 1345

9800 1914 1425

10400 2031 1505

11000 2148 1586

11600 2265 1667

2.09

1331 2.71

2.46

1407 3.12

1459 4.13

1528 4.60

2.87

1483 3.58

3.33

1560 4.10

1598

1668

5.11

5.68

3.84

1637

4.40

1715

4.66

1740 6.29

5.28

1813 6.96

1711 6.81

1820

1773 7.45

1881

8.61

9.32

1932

1982

1841 8.13

1942

1910 8.87

2005

10.1

10.9

2039

2100

10.6

11.3

12.1

13.0

2040

2088

2138

2189

12.8

13.5

14.3

15.2

2152

2192

2237

15.0

15.8

16.7

2257 17.4

12200 2382 1749 5.02

1794 5.96

1888 7.72

1980 9.66

2068 11.8

2161


13.9

2249 16.2

RPM

650

900

1300

1800

2265


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

66 75 70 65 63 64 51 43

64 72 67 62 62 59 51 41

64 70 65 60 60 59 51 41

67 72 66 61 60 59 52 41

70 79 73 71 69 73 60 52

68 73 69 68 66 66 59 49

70 71 69 66 65 65 59 50

73 75 70 66 65 65 59 50

75 80 89 82 79 76 79 63

71 76 85 79 76 73 68 60

75 76 80 76 74 71 66 61

79 83 86 76 73 71 66 61

81 85 93 89 88 84 87 78

76 79 90 85 85 81 77 69

82 82 87 83 82 78 74 70

85 87 90 83 81 78 74 70

85 88 94 95 94 91 91 89

79 82 89 91 91 87 83 76

85 87 88 88 87 84 80 77

87 92 93 89 87 83 80 77

77

72

71

71

86

82

79

81

L

Wi

A

70

67

65

66

94

89

87

87

99

95

91

92

RPM

650

900

1300

1800

2265


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

74 79 68 69 66 64 55 45

73 78 66 67 65 64 59 49

73 77 65 65 64 63 59 48

75 78 66 65 64 63 58 47

77 80 74 75 72 72 64 54

73 76 70 73 71 68 63 52

74 76 70 71 69 68 63 53

81 79 71 71 70 68 64 54

82 84 85 86 82 77 78 67

79 79 80 84 80 75 71 65

81 82 80 81 78 74 70 65

82 84 80 81 77 74 70 65

87 89 92 92 91 86 86 80

82 86 88 92 89 84 80 71

86 90 89 88 86 81 79 72

88 91 90 88 86 81 79 72

92 94 96 98 96 92 91 90

87 88 92 93 92 89 85 78

92 93 92 92 91 87 83 77

93 94 93 92 91 87 83 78

78

76

74

75

88

85

83

83

L

Wo

A

72

71

70

70

95

93

91

91

101

96

95

95



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

31


QEI-24I


Maximum

Fan RPM

QEI-L

QEI


1450

1655

Maximum

Motor

Frame Size

QEI-L

QEI

215T

254T

Minimum Motor

Starting hp

Wheel Diameter

1/3 hp

30 in.

.25 kW

762 mm

Approximate Weight


QEI-L 400 lbs.

182 kg.

QEI 470 lbs.

213 kg.




% WOV = (CFM x 100) / (Fan RPM x 11.8)


14

12

10

8

6

4

2

0

6

7½ 10

50% WOV

15

60% WOV

5

4

3

2

1

0

0

5

3

1½

¾

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

Y

S

TE

M

C

U

R

VE

1037

653

823

2 4 6 8 10

1229

12

Volume (cfm x 1000)

1549

14

1655

70% WOV

16

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

80% WOV

90% WOV

18 20

0 5 10 15 20 25 30

Performance Data

CFM

4600

OV

740

0.25

0.5

1


1.5

2 2.5

3 3.5

4


494 0.28

584 0.52

748 1.11

5600

6600

7600

8600

901

1062

1223

1384

9600 1545

10600 1706

869

949

11600 1867 1030

12600 2028 1112

563

636

712

790

13600 2190 1193

14600 2351 1275

15600 2512 1358

0.39

0.53

0.71

0.93

640

704

772

845

0.65

0.82

1.03

1.28

786

831

888

948

1.21

1.54

920

996

1.59

1.95

1013 2.42

1082 2.84

1.93

1073 2.37

2.39

1152 2.86

1154

1228

3.33

3.88

1.29

1.50

1.76

2.06

2.91

1231

3.52

1311

4.21

1392

3.43

1303 4.50

4.07

1378 5.21

4.80

1455 6.00

915

951

996

1047

1103

1165

1231

1298

2.02

2.29

2.59

2.94

3.35

3.82

4.36

4.96

1060

1097

1142

1190

1247

1304

1369

3.16

3.52

3.91

1191

1231

4.51

4.96

4.36

1276 5.46

4.88

1324 6.02

5.46

1380

6.13

1436

6.65

7.35

1286 5.56

1312 6.07

1357

1402

1450

1506

6.63

7.23

7.90

8.66

1369 5.65

1435

1442 6.42

1502

6.87

7.69

1499

1564

1516 7.27

1574 8.60

1631

8.15

9.03

9.99

1562

1623

9.49

10.4

1400 7.24

1481

1431 7.85

1507

1475 8.51

1545

8.45

9.12

9.83

1521 9.22

1589

1570 10.0

1635

10.6

11.4

1626 10.9

32

RPM

400

600

850

1150

1655


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

69 69 64 61 60 58 50 36

68 68 62 59 58 58 50 36

66 67 60 58 57 58 50 37

67 67 60 58 56 58 50 36

72 76 71 68 65 65 55 43

70 75 69 65 62 61 54 41

69 75 66 63 60 61 53 41

71 74 66 63 60 61 53 41

76 81 80 76 73 73 62 55

72 79 79 73 70 67 59 51

72 75 76 69 67 65 57 51

74 77 76 68 66 63 57 51

79 91 85 83 81 79 77 63

76 92 83 80 78 74 68 60

76 85 79 76 74 70 65 61

79 84 79 75 73 69 64 63

83 89 100 95 91 89 87 76

80 85 95 92 88 85 80 72

81 84 88 88 84 81 76 71

85 85 87 86 82 79 75 71

71

69

67

67

79

76

73

73

L

Wi

A

65

64

63

63

87

83

79

78

97

94

89

88

RPM

400

600

850

1150

1655


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

72 71 65 65 65 62 55 43

72 70 63 64 64 62 55 43

70 69 63 63 64 62 55 43

72 69 62 63 64 62 56 43

79 76 72 71 68 67 58 47

77 75 71 70 68 66 58 47

77 75 70 68 67 66 58 48

77 75 70 67 66 65 59 48

80 84 79 80 77 75 65 54

76 81 76 78 75 70 63 52

77 79 74 74 73 68 61 52

79 80 74 73 72 68 61 52

83 85 85 86 84 81 77 62

82 83 81 83 81 76 69 59

84 82 78 79 77 72 65 58

87 84 79 79 76 71 65 59

88 90 92 96 94 91 88 78

87 86 91 92 90 87 81 71

91 89 88 90 87 83 78 70

94 91 89 89 86 81 76 71

73

73

72

72

82

79

77

76

L

Wo

A

69

68

68

68

89

85

81

81

98

94

91

90



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-24 Class II

QEI-24II


Maximum Fan RPM


2036

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


3/4 hp

30 in.

284T

550 lbs.

.55 kW

762 mm

249 kg.




% WOV = (CFM x 100) / (Fan RPM x 9.84)


20

15

10

5

0

10

9

8

7

6

5

4

3

2

1

0

0

15 20 25

60% WOV

10

7½

5

2

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

918

Y

ST

EM

C

U

R

VE

1246

2 4 6

1426

1569

8 10 12

Volume (cfm x 1000)

1796

14

70% WOV

2036

16

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

80% WOV

90% WOV

18 20

0 5 10 15 20 25 30

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

6800

7500

8200

8900

9600

1075

1186

1297


784 0.97

875 1.56

1051 2.96

1222 4.64

847

911

1408 976

1518 1042

1.18

1.43

1.71

2.03

928

987

1046

1107

1.80

2.08

2.39

2.74

1090 3.25

1248

1133 3.57

1281

4.99

5.36

1405

1420

1184

1236

3.96

4.39

1318

1360

5.78

6.25

1453

1486

6.94

7.37

7.85

8.36

1568

1580

1607

9.57

10.1

10.7

1717

1728

12.5

13.1

1854 15.7

1405 6.76

1523

1457 7.36

1566

8.92

1641 11.3

9.54

1674 11.9

1751 13.8

1784 14.5

1865 16.5

1983

1885 17.2

1994

19.3

20.1

10300 1629 1108

11000 1740 1176

11700 1851 1244

12400 1962 1312

13100 2072 1380

13800 2183 1449

2.40

1169 3.15

2.81

1233 3.60

3.26

1298 4.11

3.76

1363 4.67

1289

1345

1404

1464

4.87

5.39

5.97

6.59

4.32

1428 5.29

4.94

1494 5.97

1524

1585

7.27

8.00

1509

1562

1617

1675

8.02

8.72

9.48

10.3

1609

1660

1712

1765

10.2

11.0

11.8

12.7

1714

1757

1800

1851

12.7

13.5

14.3

15.3

1817

1853

1895

1938

15.3

16.1

17.0

18.0

1918

1951

1985

2026

18.1

19.0

19.9

20.9

2013 21.0

14500 2294 1518 5.61

1561 6.72

1648 8.82

1734 11.2

1818 13.7

1903


16.3

1982 19.0

RPM

600

850

1150

1650

2036


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

69 76 71 66 65 64 52 43

67 73 68 64 63 59 51 41

66 71 66 61 61 59 51 41

69 73 67 62 62 60 52 41

73 81 75 73 71 74 61 53

71 76 71 70 68 67 60 50

72 74 71 68 67 67 61 51

76 78 72 68 67 67 60 51

76 82 88 82 79 77 77 61

72 78 85 79 76 73 67 59

76 77 80 76 74 71 66 60

80 84 85 76 73 71 66 61

83 87 95 90 89 86 87 78

78 82 92 86 86 82 77 69

84 84 89 84 83 79 75 71

86 89 91 84 82 78 75 71

86 89 96 96 95 91 92 90

80 84 91 92 92 88 83 76

87 88 89 89 88 84 80 77

89 94 94 89 87 84 80 77

78

74

73

73

86

82

79

81

L

Wi

A

71

68

66

67

95

91

88

88

100

95

92

93

RPM

600

850

1150

1650

2036


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

76 79 70 70 67 65 56 45

76 78 68 68 67 65 59 49

75 77 67 67 66 64 59 49

76 78 67 66 65 64 59 47

79 82 76 77 74 74 65 55

75 78 73 75 73 70 64 53

76 79 72 73 71 69 65 54

83 81 73 73 71 69 65 55

83 84 86 86 82 78 77 65

80 80 81 83 80 75 71 64

81 82 81 81 78 74 70 65

83 83 81 81 77 74 70 65

88 90 94 94 92 87 87 81

84 87 90 93 90 84 80 72

88 91 91 89 87 82 79 72

89 92 91 89 87 82 80 73

94 95 97 99 97 93 92 91

88 89 93 94 93 89 85 77

93 94 93 93 91 87 83 77

94 95 94 93 91 87 83 78

80

77

76

77

87

84

83

82

L

Wo

A

73

72

71

71

96

94

92

92

102

97

95

96



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

33


QEI-27I


Maximum

Fan RPM

QEI-L

QEI


1280

1505

Maximum

Motor

Frame Size

QEI-L

QEI

215T

256T

Minimum Motor

Starting hp

Wheel Diameter

3/4 hp

33 in.

.55 kW

838 mm

Approximate Weight


QEI-L 470 lbs.

214 kg.

QEI 540 lbs.

245 kg.




% WOV = (CFM x 100) / (Fan RPM x 15.2)


14

12

10

8

6

4

2

0

6

10

15

50% WOV

60% WOV

5

7½

70% WOV

4

3

2

1

0

0

5

3

1½

¾

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

716

568

S

Y

S

TE

M

C

U

R

VE

902

2 4 6 8 10

1069

12

1224

1280

1347

14

Volume (cfm x 1000)

16

1505

18 20

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

80% WOV

90% WOV

22 24

0 5 10 15 20 25 30 35 40

Performance Data

CFM

5700

OV

755

0.25

0.5

1


1.5

2 2.5

3 3.5

4


459 0.35

541 0.63

690 1.32

6900

8100

915

1074

9300 1233

10500 1392

11700 1551

12900 1710

811

886

14100 1870 962

15300 2029 1038

524

593

664

737

16500 2188 1114

17700 2347 1191

18900 2506 1268

0.48

0.65

0.87

1.14

1.47

1.88

853

924

2.35

997

2.91

1070

594

651

716

783

3.55

1144

4.29

1219

5.13

1294

0.79

0.98

1.24

1.54

724

767

819

875

1.91

2.35

933

999

2.88

3.38

2.86

1065 3.96

3.46

1133 4.62

1.53

1.79

2.10

2.46

4.14

1203 5.37

4.92

1275 6.23

5.80

1346 7.18

843

875

916

964

1017

1073

1131

1196

2.40

2.72

3.08

3.51

3.99

4.54

5.15

5.88

950

976

1009

1050

1096

1148

1202

1259

3.36

3.75

1070 4.85

4.17

4.64

1097

1131

5.34

5.87

5.19

1172 6.46

5.81

1218 7.14

6.50

1269

7.25

1322

7.90

8.74

1182 6.58

1208 7.17

1246

1287

1332

1384

7.83

8.55

9.36

10.3

1262 6.70

1318

1329 7.61

1383

8.10

9.08

1379

1436

1397 8.62

1449 10.2

1497

9.64

10.6

11.8

1436

1492

11.3

12.3

1260 7.88

1287 8.55

1359

1314 9.26

1386

1355 10.0

1418

9.98

10.8

11.6

1396 10.9

1459

1442 11.9

1500

12.5

13.5

1494 12.9

34

RPM

400

550

750

1100

1505


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

70 71 64 59 61 58 52 38

65 68 62 58 57 58 52 40

65 67 62 59 57 58 52 42

67 68 61 58 57 58 53 42

73 72 70 65 65 67 54 45

70 70 67 63 61 61 54 44

69 69 64 61 60 60 55 44

74 70 64 61 60 60 54 44

84 83 75 73 70 76 62 54

82 80 73 70 69 66 60 53

79 77 71 68 67 64 59 52

79 78 71 67 66 63 59 52

77 86 86 84 80 78 82 66

73 84 83 80 77 74 70 63

75 84 79 76 75 72 67 64

79 82 82 76 74 71 66 64

80 89 92 93 89 85 90 76

78 87 88 90 86 83 79 72

81 90 88 86 83 80 77 72

85 89 89 86 82 80 76 73

71

67

66

66

79

74

72

71

L

Wi

A

65

64

63

64

88

83

80

80

95

91

89

88

RPM

400

550

750

1100

1505


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

70 70 65 67 62 60 55 44

69 68 63 65 59 61 57 45

69 69 63 64 59 61 57 45

68 68 62 64 59 61 56 45

78 73 71 71 67 67 56 46

75 71 68 69 65 65 57 47

74 70 67 67 65 64 57 47

73 71 66 66 64 64 56 46

85 82 77 79 74 75 64 55

85 80 75 76 72 68 62 53

83 79 74 75 71 67 61 53

83 79 74 73 71 66 61 52

85 89 86 89 84 81 82 66

81 86 82 86 81 77 72 63

84 87 81 83 78 75 69 63

87 88 83 82 78 74 68 64

88 91 93 97 93 89 89 79

86 89 90 94 90 87 83 73

91 89 88 91 87 84 81 72

93 92 90 92 87 83 80 72

73

71

70

70

81

78

76

75

L

Wo

A

68

67

67

66

90

86

84

84

99

95

92

93



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-27 Class II

QEI-27II


Maximum Fan RPM


1847

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1 1 ⁄

2

hp

33 in.

286T

670 lbs.

1.1 kW

838 mm

304 kg.




% WOV = (CFM x 100) / (Fan RPM x 12.9)


20

15

10

5

0

10

9

8

7

6

5

4

3

2

1

0

0

15

20 25

30

60% WOV

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

70% WOV

10

7½

5

2

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

794

TH

IS

S

Y

S

TE

M

C

U

R

VE

1077

2 4 6 8 10

1232

12

1356

14

1552

Volume (cfm x 1000)

1708

16

1847

18 20

80% WOV

90% WOV

22 24

0 10 20 30 40

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

8300

9100

9900

10700

11500

1100

1206

1312

1419

1525

12300 1631 1011

13100 1737 1070

13900 1843 1130

14700 1949 1189

15500 2055 1249

16300 2161 1309


727 1.21

807 1.89

967 3.57

1119 5.59

1265 7.80

782

839

896

953

1.45

1.73

854

906

2.16

2.49

2.05

959 2.87

2.41

1012 3.28

1002 3.91

1038 4.28

1082

1128

4.71

5.19

1147

1175

1207

1243

5.98

6.41

6.89

7.42

1281

1303

1331

1359

8.29

8.81

9.34

9.91

1410

1427

1444

1472

10.8

11.4

12.0

12.7

1543

1560

1576

14.1

14.8

15.6

1667

1684

17.8

18.6

1783 21.8

1280 7.99

1392

1325 8.65

1428

10.6

1500 13.4

11.3

1529 14.1

1602

1630

16.4

17.2

1700 19.5

1800

1723 20.4

1816

22.7

23.8

2.82

1067 3.75

3.28

1123 4.26

1174 5.71

1223 6.30

3.78

1179 4.82

4.35

1236 5.44

1275

1327

6.97

7.69

4.97

1293

5.65

1351

6.12

1380 8.48

6.86

1434 9.33

1371 9.36

1464

1417 10.1

1506

1464 11.0

1515 11.9

1551

1597

12.0

12.8

13.8

14.7

1563

1599

1635

1676

14.9

15.8

16.7

17.8

1658

1688

1724

1760

18.0

18.9

20.0

21.0

1752

1780

1809

1843

21.3

22.3

23.3

24.5

1839 24.8

17100 2267 1370 6.39

1409 7.67

1488 10.2

1566 12.9

1644 15.8

1721


18.9

1797 22.2

RPM

550

750

1100

1500

1847


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

81 72 67 64 68 62 50 43

79 71 64 62 62 58 50 44

76 68 62 61 62 59 51 45

74 68 63 61 62 59 51 45

73 80 75 72 71 77 58 53

65 73 71 68 68 62 56 49

67 70 70 65 67 62 56 50

68 71 69 65 67 62 56 51

78 90 84 83 81 83 78 65

74 89 80 79 78 73 67 61

74 84 76 75 77 72 67 62

78 83 77 74 76 71 67 63

83 86 95 91 89 86 89 75

78 80 91 87 85 80 76 70

80 80 87 83 82 79 75 71

83 83 86 83 81 78 75 72

85 90 97 97 96 92 94 84

82 83 91 92 92 87 84 77

89 86 90 89 89 85 82 78

89 89 91 89 88 84 81 78

79

72

71

70

88

82

80

80

L

Wi

A

71

67

66

66

95

89

87

86

101

96

93

92

RPM

550

750

1100

1500

1847


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

83 74 70 71 68 64 55 45

82 72 67 70 66 62 56 45

79 69 65 68 65 62 56 45

79 70 65 67 65 62 56 45

79 81 78 79 74 75 62 55

76 76 75 77 72 67 61 53

75 73 72 74 71 66 61 52

77 75 71 73 70 66 61 53

85 92 88 89 84 84 78 67

81 84 84 86 82 77 69 62

83 82 81 83 79 75 68 63

84 84 81 82 79 74 68 64

90 91 96 96 92 89 90 77

85 86 91 94 89 85 79 72

89 88 88 91 87 82 77 72

91 90 90 90 86 82 77 73

96 95 100 101 99 94 94 86

91 90 98 98 96 91 86 79

97 94 94 95 93 88 83 79

97 96 96 95 92 88 83 79

81

77

75

75

91

87

84

84

L

Wo

A

73

71

70

70

98

95

92

91

103

100

97

97



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

35


QEI-30I


Maximum

Fan RPM

QEI-L

QEI


1200

1360

Maximum

Motor

Frame Size

QEI-L

QEI

256T

284T

Minimum Motor

Starting hp

Wheel Diameter

1 hp

36.5 in.

.75 kW

927 mm

Approximate Weight


QEI-L 630 lbs.

286 kg.

QEI 850 lbs.

386 kg.




% WOV = (CFM x 100) / (Fan RPM x 20.6)


14

12

10

8

6

4

2

0

6

5

4

3

2

1

0

0

10

15

50% WOV

60% WOV

20

RPM

BHP

% WOV


Density 1.2 kg/m 3

5

2

1

2

70% WOV

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

529

O

F

TH

666

IS

S

Y

S

TE

M

C

U

R

VE

904

4 6

1139

1200

1360

80% WOV

90% WOV

8 10 12 14 16 18 20 22 24 26 28 30

Volume (cfm x 1000)

0 10 20 30 40 50

Performance Data

CFM

6900

OV

748

0.25

0.5

1


1.5

2 2.5

3 3.5

4


412 0.42

487 0.76

622 1.60

8400

9900

910

1073

11400 1235

12900 1398

14400 1561

15900 1723

17400 1886

18900 2048

20400 2211 1018

21900 2374 1088

23400 2536 1160

737

806

876

947

472

536

602

669

1.83

2.34

2.94

3.65

0.58

0.79

1.07

1.41

4.47

1044

5.41

1113

6.49

1183

775

841

908

975

536

588

648

710

0.96

1.20

1.52

1.9

654

693

742

793

2.37

2.92

847

908

3.55

4.19

3.57

969 4.92

4.33

1032 5.76

1.87

2.19

2.58

3.03

5.20

1097 6.72

6.19

1163 7.81

7.32

1230 9.03

761

791

829

874

923

975

1028

1088

2.93

3.32

3.77

4.31

4.92

5.61

6.39

7.31

858

882

912

950

993

1042

1092

1145

1150 8.35

1200

1212 9.51

1275 10.8

1260

4.10

4.58

5.10

5.70

968

992

1024

5.93

6.54

7.21

6.39

1062 7.95

7.17

1104 8.80

8.04

1152

8.99

1202

9.77

10.8

1069 8.06

1093 8.80

1128

1167

1209

1257

9.63

10.5

11.6

12.7

10.1

11.3

1321 12.7

1254

1307

12.0

1306 14.0

13.2

1358 15.3

1140 9.65

1164 10.5

1230

1190 11.4

1254

1228 12.4

1285

1266 13.4

1323

1310 14.7

1358 16.0

12.2

13.2

14.3

15.4

36

RPM

350

500

700

950

1360


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

70 70 63 60 61 57 49 36

66 67 61 58 57 57 50 38

66 66 61 58 57 57 51 40

67 67 61 58 57 57 51 40

74 73 70 66 66 67 54 44

71 71 68 64 62 61 54 43

70 70 65 62 61 60 54 44

74 71 65 62 61 60 54 43

87 84 77 74 73 76 62 55

84 81 74 72 70 67 61 53

81 78 72 69 68 65 60 53

81 79 73 68 67 64 60 53

78 86 85 83 79 79 79 62

75 84 82 79 77 73 68 61

77 83 78 76 74 71 67 63

79 82 81 76 73 70 66 63

83 91 93 93 89 87 88 75

80 89 90 90 86 83 79 72

84 91 89 86 84 81 77 73

87 91 89 86 83 80 76 73

72

68

67

66

80

75

73

73

L

Wi

A

65

63

63

63

86

82

79

79

96

92

89

89

RPM

350

500

700

950

1360


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

70 69 66 66 62 59 53 42

69 68 64 64 60 60 55 43

69 68 63 63 59 60 55 43

68 67 63 63 59 60 54 43

78 74 72 72 68 67 56 46

76 71 69 70 66 65 56 46

75 71 68 68 66 64 56 46

74 71 67 67 65 64 56 46

87 83 79 80 75 76 64 55

87 81 76 78 73 69 63 54

85 80 75 76 72 68 62 53

85 80 75 75 72 67 61 53

86 89 86 88 84 81 79 63

82 85 83 85 80 76 70 61

84 86 82 82 77 73 68 62

87 87 83 81 77 72 67 63

89 92 95 97 93 90 89 78

87 90 91 94 90 87 82 72

92 91 89 91 87 85 81 72

94 93 91 92 87 84 80 71

74

72

71

70

82

79

77

77

L

Wo

A

68

66

66

66

89

85

83

83

99

95

93

93



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-30 Class II

QEI-30II


Maximum Fan RPM


1670

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


1 1 ⁄

2

hp

36.5 in.

324T

1000 lbs.

1.1 kW

927 mm

454 kg.




% WOV = (CFM x 100) / (Fan RPM x 17.4)


20

15

10

5

0

10

9

8

7

6

5

4

3

2

1

0

0

20 25

30 60% WOV

70% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

15

10

7½

3

5

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

Y

S

TE

M

C

U

R

VE

1043

768

911

1147

5 10 15

1313

1445

Volume (cfm x 1000)

1557

20

1670

80% WOV

25

90% WOV

30

0 10 20 30 40 50

Performance Data


CFM OV 0.5

1 2 3 4 5 6 7 8


10000 1084

11100 1203

12200 1323

13300 1442

14400 1561

15500 1681

16600 1800

650

706

763

821

880

939

999

1.43

1.76

2.15

2.60

3.11

723

771

824

877

931

3.70

988

4.37

1045

17700 1919 1060 5.11

1103

18800 2039 1121 5.94

1161

19900 2158 1182 6.87

1219

21000 2277 1243 7.90

1278

22100 2396 1304 9.03

1338

2.26

2.63

3.09

870

905

942

3.61

987 5.88

4.20

1034 6.56

4.86

1082 7.31

5.60

1133 8.18

6.43

1186 9.15

7.34

1240 10.2

8.35

1294

9.46

1349

10.7

1406

4.31

4.77

5.28

1009 6.76

1141

1036 7.30

1158

1065 7.89

1180

1098 8.56

1209

10.8

11.6

1291

1311

1135 9.31

1176 10.1

1222 11.1

1269 12.1

1317 13.2

11.4

1367 14.5

12.6

1420 15.9

14.0

1473 17.4

9.50

10.1

1274

1237 12.4

1339

1273 13.3

1368

1310 14.3

1399

1349 15.4

1436

1395 16.6

1473

1442 18.0

1513

1489 19.4

1559

1537 20.9


13.1

14.0

1397 17.3

14.9

1413 18.3

15.8

1431 19.4

16.7

1460 20.5

17.8

1489 21.6

19.0

1517 22.8

1573

1602

25.6

26.9

20.3

1553

21.7

1590

23.2

1627

1606 24.9

1510 21.9

1527 23.1

1545 24.4

24.2

1631 28.3

25.7

1665 29.9

27.2

1617 27.0

1634 28.4

1652 29.8

RPM

500

700

950

1350

1670


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

83 72 68 66 68 61 50 43

81 71 65 63 63 58 50 44

78 68 63 62 62 59 51 45

76 68 63 62 62 59 51 46

75 81 77 74 73 76 59 54

68 74 72 70 69 63 56 50

69 72 71 67 68 63 57 51

70 72 70 67 68 63 57 52

80 91 83 82 81 82 75 63

76 90 79 78 77 71 66 59

76 85 76 76 76 71 66 61

79 84 77 75 75 70 66 62

84 88 95 92 89 87 88 74

79 82 91 87 85 80 76 69

81 82 87 84 82 79 75 71

84 85 87 83 82 79 75 72

87 91 99 97 97 92 95 84

84 84 93 93 93 87 84 77

91 86 92 90 90 85 82 78

91 90 92 89 89 85 82 79

80

73

72

71

87

82

80

79

L

Wi

A

71

67

66

66

95

90

87

87

102

96

94

93

RPM

500

700

950

1350

1670


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

84 75 71 72 69 64 54 45

83 72 68 70 66 62 55 44

80 70 66 68 66 62 55 44

80 71 66 68 65 62 56 45

80 82 80 80 76 75 63 55

77 77 76 78 73 68 62 54

76 74 73 75 72 67 61 53

78 76 73 74 71 67 61 54

86 93 88 88 84 83 76 64

82 85 84 85 81 75 68 61

83 83 81 82 78 73 67 61

84 85 81 81 78 73 67 63

91 92 97 97 93 90 89 76

86 87 92 94 90 85 79 72

90 89 90 91 87 82 77 72

92 91 91 90 86 82 77 73

98 96 102 102 99 95 95 85

92 91 100 99 97 91 86 79

98 94 95 96 94 89 83 79

99 97 97 95 92 88 83 79

82

79

76

76

90

86

83

83

L

Wo

A

73

72

70

70

98

95

92

91

104

101

98

97



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

37


QEI-33I


Maximum

Fan RPM

QEI-L

QEI


1000

1234

Maximum

Motor

Frame Size

QEI-L

QEI

256T

286T

Minimum Motor

Starting hp

Wheel Diameter

1 1 ⁄

2

hp

40.25 in.

1.1 kW

1022 mm

Approximate Weight


QEI-L 730 lbs.

332 kg.

QEI 990 lbs.

449 kg.




% WOV = (CFM x 100) / (Fan RPM x 26.7)


14

12

10

8

6

4

2

0

6

5

4

3

2

1

0

0

15

20 25

10

5

2

1

DO

NO

T S

EL

EC

T

TO

450

T

H

E

LE

567

FT

O

F

TH

IS

S

YS

TE

M

C

U

R

VE

769

4 8 12 16 20

1109

Volume (cfm x 1000)

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

70% WOV

1234

24 28

80% WOV

90% WOV

32

0 10 20 30 40 50

Performance Data

CFM

8400

OV

745

0.25

0.5

1


1.5

2 2.5

3 3.5

4


379 0.52

444 0.93

562 1.93

10200 905

12000 1064

13800 1224

15600 1384

17400 1543

19200 1703

21000 1863

22800 2023

24600 2182 944

26400 2342 1010

28200 2502 1076

682

747

812

878

435

494

556

618

2.32

2.97

3.74

4.64

0.72

0.99

1.35

1.79

5.69

965

6.89

1029

8.25

1094

714

775

837

900

489

539

595

653

2.96

3.67

4.50

5.46

1.17

1.48

1.88

2.37

593

631

675

723

776

832

889

948

6.56

1009 8.38

7.83

1070 9.75

9.25

1132 11.3

4.37

5.17

6.08

7.16

2.27

2.67

3.13

3.69

687

717

753

793

840

888

940

996

3.52

4.02

4.60

5.22

5.97

6.83

7.83

8.99

1171 13.4

795

827

862

902

947

994

1042

5.48

6.17

6.93

7.74

8.67

893

927

963

1003

9.75

1045

10.9

1093

1053 10.3

1097

1111 11.8

1153

12.4

13.9

1141

1192

1209 15.6

7.81

8.71

9.66

10.7

11.8

13.1

14.5

16.2

966

988

1022

1058

1098

1140

1188

9.68

10.6

11.6

12.8

14.0

15.3

16.9

1050 12.6

1113

1077 13.7

1129

1112 15.0

1163

1149 16.3

1198

1189 17.8

1231 19.3

14.7

15.8

17.2

18.7

38

RPM

300

450

600

850

1234


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

68 68 62 60 61 48 39 32

66 66 60 60 60 49 40 34

62 65 59 60 60 49 39 32

65 66 60 60 60 49 39 33

74 76 71 70 70 59 50 45

71 75 68 70 66 58 51 44

69 72 66 70 65 59 52 45

69 72 66 70 65 58 52 44

83 81 78 74 73 74 59 54

79 80 75 72 72 66 60 53

78 79 73 70 71 66 60 54

78 79 73 70 71 66 60 54

84 93 88 83 79 84 70 62

82 92 85 80 78 74 67 61

81 90 80 76 75 73 68 63

81 88 80 75 75 73 68 63

88 98 95 94 90 88 90 75

86 96 93 91 88 84 78 72

86 95 88 87 84 82 77 73

86 95 88 87 84 82 77 73

73

70

70

70

79

76

75

75

L

Wi

A

64

62

62

62

88

84

81

81

97

93

90

90

RPM

300

450

600

850

1234


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

71 67 64 64 64 52 45 38

68 68 63 63 63 52 45 38

67 68 62 63 63 52 46 39

68 69 62 63 64 53 46 40

80 76 73 72 71 62 54 46

77 76 70 71 68 61 54 46

77 76 68 70 67 60 54 46

78 76 69 70 68 60 54 46

88 82 79 80 76 74 61 54

86 82 77 78 75 68 61 53

85 82 75 75 73 67 61 53

84 82 75 75 73 67 61 54

85 90 87 88 83 83 74 65

84 90 84 85 80 76 70 62

84 88 82 83 78 75 69 64

86 89 82 82 78 75 69 64

91 95 97 99 94 91 91 78

89 95 94 96 91 87 82 74

92 93 92 93 88 85 80 74

94 94 92 93 88 85 80 75

74

72

71

72

81

79

78

77

L

Wo

A

67

66

66

66

90

86

84

84

100

97

94

94



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-33 Class II

QEI-33II


Maximum Fan RPM


1522

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


2 hp

324T

40.25 in.

1200 lbs.

1.5 kW

1022 mm

544 kg.




% WOV = (CFM x 100) / (Fan RPM x 23.5)


20

15

10

5

0

10

9

25

30 40

50% WOV

60% WOV

20

8

7

6

5

4

3

2

1

0

0

15

10

5

3

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

Y

S

TE

M

C

U

R

VE

649

769

969

4 8 12 16

1109

20

1220

1314

Volume (cfm x 1000)

1397

24

70% WOV

1522

28

RPM

BHP

% WOV


Density 1.2 kg/m 3

80% WOV

90% WOV

32 36

0 10 20 30 40 50 60

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

12500

13900

15300

16700

18100

19500

20900

22300

23700

25100

26500

1109

1233

1357

1481

1606

1730

1854

1978

2102

2227

2351


599 1.76

668 2.84

797 5.47

923 8.58

1043 11.9

652

707

762

818

874

931

988

1046

1103

1161

2.17

2.64

3.20

3.84

4.57

5.40

714

762

812

862

916

971

3.32

3.87

4.50

5.22

6.03

6.95

833

872

915

958

1004

1053

6.06

6.71

7.47

8.30

9.26

10.3

6.34

1026 7.98

7.38

1081 9.12

1101

1151

11.5

12.8

8.55

9.85

1137

1193

10.4

11.8

1201

1254

14.2

15.8

948

975

1011

1050

1092

1134

1178

1224

9.29

10.0

10.9

11.9

12.9

14.1

15.4

16.8

1272 18.4

1320 20.1

1059

1080

1107

1136

1174

1212

1253

1296

1340

1384

12.8

13.8

14.8

15.8

17.0

18.3

19.7

21.2

22.9

24.7

1165

1181

1200

1227

1254

1288

1326

1365

1407

1450

16.6

17.8

18.9

20.1

21.4

22.8

24.3

25.9

27.7

29.7

1277

1293

1311

1338

1365

1395

1433

1471

1510

21.9

23.3

24.7

26.1

27.6

29.2

31.0

32.9

34.9

1381

1398

1415

1442

1469

1496

27.8

29.4

31.1

32.7

34.4

36.2

1480

1496

1514

34.3

36.1

38.0

27900 2475 1219 11.3

1249 13.3

1308 17.5

1370 21.9

1432 26.7

1493


31.7

RPM

450

600

850

1200

1522


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

83 74 69 67 71 61 50 44

80 72 66 66 67 58 48 40

78 70 63 64 66 57 48 40

75 69 62 64 66 56 48 40

83 83 77 75 74 78 59 53

79 80 73 72 73 65 56 49

76 77 70 70 72 64 56 49

76 77 70 69 72 63 55 49

79 93 84 85 81 87 73 65

75 90 82 82 79 75 67 60

74 87 77 79 77 74 67 61

79 88 78 77 76 72 65 61

85 92 97 94 90 89 92 76

79 89 94 91 87 83 79 70

81 86 91 87 85 81 77 70

83 87 89 86 84 81 76 71

90 94 101 100 96 94 98 86

85 89 97 98 94 90 87 79

87 88 93 94 90 87 84 78

90 91 93 93 90 87 83 79

81

76

75

74

90

84

82

81

L

Wi

A

73

69

69

68

98

93

90

89

104

99

96

95

RPM

450

600

850

1200

1522


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

87 77 73 73 74 64 54 47

85 77 71 72 72 61 52 45

84 76 69 70 72 60 52 45

83 77 68 68 72 59 52 45

82 82 79 80 76 76 62 54

82 82 77 79 75 68 60 51

82 81 75 76 75 67 59 52

82 83 74 75 74 65 58 52

85 89 88 90 83 86 75 66

82 87 85 88 81 77 70 61

82 85 82 84 79 75 68 62

85 87 82 83 79 74 67 62

89 92 95 99 93 90 92 78

87 89 93 97 91 87 82 73

88 89 90 94 88 84 79 72

91 92 92 93 87 83 78 73

94 96 102 104 99 96 98 87

92 93 98 102 97 93 89 81

94 95 95 99 94 90 86 79

96 97 98 99 94 90 85 80

82

80

78

77

91

88

85

84

L

Wo

A

76

75

74

74

100

97

94

93

106

103

100

100



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

39


QEI-36I


Maximum

Fan RPM

QEI-L

QEI


920

1116

Maximum

Motor

Frame Size

QEI-L

QEI

256T

286T

Minimum Motor

Starting hp

Wheel Diameter

1 1 ⁄

2

hp

44.5 in.

1.1 kW

1130 mm

Approximate Weight


QEI-L 900 lbs.

409 kg.

QEI 1200 lbs.

544 kg.




% WOV = (CFM x 100) / (Fan RPM x 36.1)


14

12

10

8

6

4

2

0

6

5

15

20 25

30

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

70% WOV

4

3

2

1

0

0

10

5

3

1½

DO

NO

T S

EL

EC

T

TO

T

436

HE

L

EF

T

O

F

TH

IS

S

YS

TE

549

651

M

C

U

R

VE

5 10 15 20

820

25

Volume (cfm x 1000)

1033

1116

30

0 10 20 30 40 50

80% WOV

90% WOV

35 40

60

Performance Data

CFM

10300

OV

746

0.25

0.5

1


1.5

2 2.5

3 3.5

4


343 0.63

402 1.14

508 2.36

12500 906

14700 1065

16900 1225

19100 1385

21300 1544

23500 1704

25700 1863

27900 2023

30100 2182

32300 2342

34500 2501

618

677

736

795

394

448

503

560

854

914

974

646

702

758

815

443

488

539

592

873

932

991

2.85

3.64

4.59

5.69

0.88

1.22

1.65

2.19

6.97

8.44

10.1

3.63

4.50

5.51

6.69

1.44

1.82

2.31

2.90

537

571

611

654

702

753

805

859

8.05

9.59

913

969

10.3

12.0

11.3

1024 13.8

5.35

6.33

7.45

8.76

2.79

3.27

3.83

4.52

760

803

851

902

622

649

681

718

953 12.6

1005 14.4

1060 16.4

7.31

8.36

9.59

11.0

4.31

4.93

5.63

6.39

720

748

780

6.71

7.55

8.49

817

857

899

943

9.48

10.6

11.9

13.4

993 15.1

1033

1043 17.0

1079

1094 19.1

946

989

808

839

872

908

9.57

10.7

11.8

13.1

874

894

925

958

14.4

994 17.1

16.0

1032 18.8

17.8

1075 20.7

19.8

11.8

12.9

14.3

15.7

950 15.4

1007

975 16.7

1022

1006 18.3

1052

1040 20.0

1084

1076 21.7

1114 23.6

18.0

19.3

21.0

22.9

40

RPM

275

400

550

800

1116


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

70 68 63 62 61 48 39 32

68 67 61 61 59 49 40 34

64 65 60 61 60 49 39 32

66 66 61 61 59 49 39 33

75 76 71 70 69 58 49 45

72 74 69 70 65 57 50 43

70 72 67 70 65 58 51 44

70 71 67 69 65 58 51 43

85 82 79 75 75 73 60 54

81 80 76 73 72 66 60 53

80 80 74 72 72 66 61 54

80 80 74 72 72 66 61 55

87 95 89 84 81 84 71 63

85 93 86 81 79 75 68 62

84 91 82 77 77 74 69 64

84 89 81 77 77 74 69 64

91 100 96 94 91 89 89 74

89 98 94 91 88 84 78 72

88 96 89 87 84 82 78 73

88 96 89 87 84 82 78 73

72

70

70

70

79

76

76

75

L

Wi

A

64

63

63

63

89

85

82

82

97

93

90

90

RPM

275

400

550

800

1116


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

72 68 65 65 64 53 45 38

69 69 64 65 63 53 45 38

69 69 63 64 63 53 46 40

69 69 63 64 64 53 47 40

80 76 73 72 70 61 53 45

78 75 71 71 67 60 53 45

77 75 69 70 67 60 53 46

78 75 70 70 67 59 53 45

90 83 80 80 77 74 62 54

88 82 78 79 75 68 61 53

86 82 76 76 74 68 61 53

86 82 76 76 74 67 61 54

88 91 89 90 85 84 75 66

86 91 86 87 82 77 71 64

86 89 84 84 80 76 71 65

88 90 84 83 80 76 71 65

92 97 98 99 95 92 90 77

91 96 95 97 92 87 82 74

93 94 93 93 89 85 80 74

95 95 93 93 89 85 80 75

74

72

71

71

82

80

78

78

L

Wo

A

67

66

66

66

91

87

85

85

100

97

94

94



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-36 Class II

QEI-36II


Maximum Fan RPM


1377

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


3 hp

44.5 in.

326T

1400 lbs.

2.2 kW

1130 mm

635 kg.




% WOV = (CFM x 100) / (Fan RPM x 31.7)


20

15

10

5

0

10

9

30

40

50

50% WOV

60% WOV

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

8

7

6

5

4

3

2

1

0

0

20

15

10

5

70% WOV

DO

NO

T

SE

LE

CT

T

O

T

H

E

LE

FT

O

F

TH

IS

S

Y

651

S

TE

M

C

U

R

VE

820

5 10 15 20

939

1033

25

1183

Volume (cfm x 1000)

30

1301

1377

35

80% WOV

90% WOV

40 45

0 20 40 60

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

15000

16600

18200

19800

21400

1088

1204

1320

1436

1552

23000

24600

26200

27800

1669

1785

1901

2017

766

814

862

910

29400 2133 959

31000 2249 1008


534 2.08

598 3.39

716 6.58

832 10.3

941 14.4

579

625

671

718

2.53

3.05

3.66

4.35

636

677

718

760

3.91

4.52

5.21

5.99

745

778

814

850

7.23

7.96

8.78

9.71

852

875

902

935

11.2

12.0

13.0

14.0

955

970

993

1016

15.4

16.5

17.6

18.8

1050

1064

1078

1099

20.0

21.3

22.6

24.0

1151

1165

1178

26.3

27.8

29.4

1244

1258

33.3

35.1

1332 41.0

1272 37.0

1346

1291 38.8

1360

43.0

45.2

5.14

6.02

7.02

8.13

9.37

990

10.7

1038

805

851

897

943

6.87

7.86

888

928

10.7

11.9

8.96

969 13.8

10.2

1010 14.6

11.5

1052 16.1

13.0

1095 17.7

968 15.1

1045

1005 16.4

1077

20.1

21.5

1122

1146

1041 17.8 1110

1078 19.3

1146

1118 21.0

1159 22.9

1182

1219

22.9

24.6

26.4

28.4

1178

1210

1243

1280

25.4

26.9

28.5

30.3

32.2

34.3

1198

1221

1244

1272

1305

1337

31.0

32.7

34.5

36.4

38.4

40.6

1314

1337

1362

40.8

42.8

44.9

32600 2365 1057 12.2

1085 14.6

1140 19.5

1200 24.8

1257 30.4

1316


36.5

1371 42.9

RPM

400

550

800

1100

1377


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

84 73 69 69 70 60 50 43

81 71 67 66 66 57 47 39

78 69 64 65 65 56 47 39

76 68 63 65 65 55 47 40

85 84 78 76 76 77 60 54

82 80 74 73 73 65 57 49

78 77 71 71 72 64 56 50

79 78 71 71 72 63 55 50

82 94 86 86 83 87 74 66

79 92 84 84 80 76 68 61

78 89 79 80 78 75 68 62

82 90 80 79 78 73 67 62

87 94 98 95 91 91 91 75

82 91 95 92 88 84 79 71

83 88 91 88 85 82 77 71

85 88 90 87 84 81 77 72

92 95 103 101 97 94 100 84

87 90 98 98 94 90 88 79

89 89 94 95 91 88 84 78

92 91 94 94 90 87 84 79

81

76

75

74

91

86

83

82

L

Wi

A

73

69

68

67

98

94

91

90

105

100

96

96

RPM

400

550

800

1100

1377


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

87 76 73 74 73 62 53 47

85 77 72 72 71 60 52 44

84 76 69 71 71 59 51 44

84 76 68 70 70 58 51 45

84 83 80 81 77 76 62 55

84 83 78 80 75 68 60 52

83 82 76 77 75 67 59 52

84 83 75 76 74 66 59 53

87 91 90 91 85 86 76 67

84 89 87 89 83 78 71 62

84 86 84 86 81 76 69 63

87 89 84 85 80 75 68 63

91 94 97 99 94 92 92 77

88 91 94 98 91 87 82 73

90 90 91 94 89 85 79 73

93 93 93 94 88 84 78 73

96 97 103 105 99 96 100 86

93 93 100 104 97 93 89 80

96 96 97 100 94 91 86 79

98 98 99 100 94 90 85 80

83

80

79

78

92

89

86

86

L

Wo

A

76

74

73

73

100

98

94

94

107

104

100

100



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

41

QEI-40 Class I

QEI-40I


Maximum Fan RPM


1013

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


5 hp

49 in.

324T

1500 lbs.

3.7 kW

1245 mm

680 kg.




% WOV = (CFM x 100) / (Fan RPM x 48.1)


14

12

10

8

6

4

2

0

6

5

4

3

2

1

0

0

15

10

5

2

25

30 40

60% WOV

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

D O

NO

T S

EL

EC

T

TO

T

H

E

LE

408

FT

O

F

TH

IS

S

YS

TE

M

C

U

R

VE

554

698

5 10 15 20 25

799

30

Volume (cfm x 1000)

948

35

1013

70% WOV

40

80% WOV

90% WOV

45 50

0 10 20 30 40 50 60 70 80

Performance Data

CFM

12500

OV

745

0.25

0.5

1


1.5

2 2.5

3 3.5

4


312 0.77

365 1.39

462 2.86

15200 906

17900 1067

20600 1228

23300 1389

26000 1550

28700 1711

31400 1872

34100 2033

36800 2194

39500 2355

42200 2516

3.51

4.50

5.67

7.05

1.08

1.49

2.03

2.70

8.64

10.5

12.6

565

619

673

727

359

408

459

511

782

837

892

4.47

5.54

6.81

8.27

1.75

2.22

2.82

3.56

9.96

11.9

14.1

590

641

693

746

403

445

491

540

799

853

907

6.56

7.77

9.17

10.8

3.39

3.98

4.68

5.53

12.7

14.8

17.1

641

687

735

785

488

520

557

596

835

886

937

8.94

10.2

11.8

13.5

5.23

6.00

6.86

7.81

15.5

17.7

20.3

693

733

777

824

565

590

620

654

871

919

969

654

681

710

744

781

820

861

907

953

18.6

21.0

1000 23.6

8.16

9.20

10.4

11.6

13.0

14.6

16.4

864

903

942

986

735

764

794

827

17.7

19.7

21.8

24.3

11.7

13.0

14.4

16.0

795

813

842

872

906

941

981

14.4

15.7

17.4

19.1

21.0

23.0

25.3

863

887

916

947

981

18.7

20.4

22.4

24.4

26.6

915

930

958

986

21.9

23.5

25.7

28.0

42

RPM

250

350

500

700

1013


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

71 68 64 63 60 48 39 32

69 67 62 62 59 49 40 34

65 66 61 62 59 48 39 32

68 66 62 62 59 48 39 33

76 75 71 70 66 56 49 44

73 73 69 69 63 56 49 42

71 71 68 69 64 57 50 42

71 70 68 69 63 57 50 42

86 82 79 76 76 72 60 54

82 81 76 74 72 66 60 53

81 80 75 73 72 66 61 54

81 80 74 73 72 66 61 55

90 94 88 84 82 82 69 62

88 92 85 81 78 74 67 61

86 89 81 77 76 73 68 63

86 88 80 77 76 73 68 63

94 101 96 94 91 90 87 72

91 99 94 92 88 84 78 72

90 97 90 88 85 82 78 73

90 97 90 88 85 82 78 73

71

69

69

69

80

77

76

76

L

Wi

A

64

63

63

63

88

84

82

81

97

94

91

91

RPM

250

350

500

700

1013


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

72 69 66 66 63 52 45 38

70 69 65 65 62 53 45 38

70 69 64 65 63 53 46 40

70 69 64 65 63 53 46 40

79 76 73 72 68 60 51 44

77 74 71 70 66 59 51 44

77 74 69 69 65 59 52 44

78 74 70 70 65 58 51 44

90 83 81 81 77 73 61 54

88 82 79 79 75 68 61 53

87 82 77 77 74 68 61 53

86 82 77 76 73 67 61 54

89 91 89 89 85 82 73 65

88 90 86 86 81 76 69 62

87 88 84 83 79 75 69 64

88 89 84 83 79 75 70 64

94 98 99 99 95 93 89 76

92 97 96 97 92 87 81 73

94 95 94 93 89 85 80 74

95 96 94 93 89 85 80 75

73

71

70

71

82

80

78

78

L

Wo

A

67

66

66

67

90

87

85

84

101

97

94

95



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-40 Class II

QEI-40II


Maximum Fan RPM


1251

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


7 1 ⁄

2

hp

49 in.

364T

1900 lbs.

5.5 kW

1245 mm

862 kg.




% WOV = (CFM x 100) / (Fan RPM x 42.4)


20

15

10

5

0

10

9

30

40 50 60

50% WOV

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

8

7

6

5

4

3

2

1

0

0

20

10

5

70% WOV

DO

NO

T

SE

LE

CT

T

O

T

H

E

LE

FT

O

F

TH

IS

S

Y

554

S

TE

M

C

U

R

VE

698

5 10 15 20 25

879

30

1006

1107

35

Volume (cfm x 1000)

1192

1251

40 45

80% WOV

90% WOV

50 55

0 20 40 60 80

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

18000 1077

20000 1197

22000 1317

24000 1437

26000 1556

28000 1676

30000 1796

32000 1916

34000 2035

36000 2155

38000 2275

40000 2395

698

743

788

833

879

925


481 2.48

540 4.06

649 7.91

754 12.4

853 17.3

523

566

609

653

3.03

3.68

4.43

5.30

575

613

652

691

4.70

5.45

6.31

7.29

675

705

739

773

8.71

9.61

10.7

11.8

772

794

819

849

13.5

14.5

15.7

17.0

866

880

902

923

18.6

20.0

21.3

22.8

953

966

979

999

24.1

25.7

27.4

29.1

1045

1058

1071

31.8

33.7

35.7

1130

1143

40.4

42.6

1210 49.8

1156 44.9

1223

1174 47.3

1236

52.3

55.0

6.29

7.41

8.67

10.1

11.7

13.4

733

776

820

863

907

951

8.40

9.65

11.0

12.6

808

846

884

923

14.3

963 19.8

16.2

1003 21.9

13.1

14.6

16.2

17.9

881

915

18.4

20.1

950

981

24.4

26.2

1021

1043

949

984

21.8

1011

23.7

1046

1022 25.9

1060 28.2

1080

1114

28.1

30.2

32.5

34.9

1073

1104

1135

1169

30.9

32.7

34.9

37.1

39.5

42.2

1089

1111

1132

1160

1190

1221

37.8

39.8

42.0

44.5

47.1

49.8

1195

1217

1242

49.7

52.2

55.0

971 15.3

996 18.2

1046 24.2

1099 30.7

1150 37.6

1203


45.0

RPM

350

500

700

1000

1251


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

82 73 69 69 68 58 49 42

79 70 67 67 64 55 46 38

77 68 64 66 63 54 46 38

75 67 63 65 63 54 46 38

87 84 78 77 77 75 60 54

83 80 75 74 73 65 56 49

80 77 72 73 72 64 56 50

81 77 72 72 72 63 55 50

85 93 86 85 84 85 73 64

82 90 84 83 80 75 67 60

80 87 80 80 78 74 67 61

84 88 80 79 77 72 66 62

89 96 98 95 92 92 90 74

85 93 95 92 88 84 79 70

85 90 92 89 86 82 77 71

87 89 90 88 85 81 77 72

93 97 104 101 97 96 99 83

89 92 99 99 94 90 87 78

90 91 95 95 91 88 84 78

93 93 95 94 90 88 84 79

81

76

75

75

90

85

82

82

L

Wi

A

72

68

67

66

99

94

91

90

105

100

97

96

RPM

350

500

700

1000

1251


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

85 76 73 74 71 61 52 46

83 75 72 72 68 58 50 42

83 74 70 71 68 57 50 43

82 74 68 70 68 57 50 43

85 84 81 81 78 75 62 54

85 83 80 80 75 68 60 51

85 82 77 78 75 67 59 52

85 82 76 77 74 66 59 53

88 91 90 90 86 84 74 65

85 89 87 88 82 77 69 61

85 86 84 85 80 75 68 62

87 88 84 84 79 74 67 62

92 95 98 99 94 93 91 76

89 92 96 98 92 88 81 73

91 91 93 94 89 85 79 73

94 93 94 94 88 84 78 74

97 99 104 105 100 97 99 85

94 95 101 104 97 94 89 80

97 97 98 100 94 91 86 79

99 99 100 100 94 90 85 80

83

81

79

78

92

88

85

85

L

Wo

A

75

73

72

72

101

98

95

94

107

104

101

100



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

43

QEI-44 Class I

QEI-44I


Maximum Fan RPM


915

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


7 1 ⁄

2

hp

326T

54.25 in.

2000 lbs.

5.5 kW

1378 mm

907 kg.




% WOV = (CFM x 100) / (Fan RPM x 65.3)


14

12

10

8

6

4

2

0

6

30

40

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

5 20

70% WOV

4

3

2

1

0

0

10

5

2

5

DO

NO

T S

EL

EC

T

TO

T

HE

345

L

EF

T

O

F

TH

IS

S

YS

TE

468

M

C

U

R

VE

589

10 15 20 25 30 35

743

Volume (cfm x 1000)

850

40

915

45 50

80% WOV

90% WOV

55 60

0 10 20 30 40 50 60 70 80 90 100

Performance Data

CFM

15200

OV

741

0.25

0.5

1


1.5

2 2.5

3 3.5

4


280 0.93

329 1.69

417 3.49

18500 902

21800 1063

25100 1224

28400 1386

31700 1547

35000 1708

38300 1869

41600 2030

44900 2191

48200 2352

51500 2513

4.25

5.44

6.86

8.53

1.30

1.81

2.45

3.26

10.5

12.7

15.2

507

556

605

654

322

367

413

459

703

753

802

5.42

6.72

8.25

10.0

2.12

2.69

3.42

4.32

12.1

14.4

17.0

531

577

623

670

362

400

442

485

719

767

816

7.97

9.44

11.1

13.1

4.12

4.84

5.70

6.72

15.4

17.9

20.8

577

619

661

706

440

468

501

537

751

797

843

10.9

12.5

14.3

16.5

6.39

7.31

8.36

9.51

18.9

21.6

24.6

624

660

700

741

510

532

559

589

784

827

872

590

613

640

670

704

739

775

816

858

901

9.96

11.2

12.6

14.1

15.8

17.8

20.0

22.6

25.5

28.7

777

813

849

888

663

689

715

745

21.5

23.9

26.6

29.6

14.2

15.9

17.6

19.5

717

733

759

786

816

847

883

17.6

19.2

21.2

23.3

25.6

28.0

30.9

779

800

826

853

884

22.8

24.9

27.3

29.8

32.4

826

838

864

889

26.8

28.7

31.3

34.1

44

RPM

225

325

450

650

915


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

71 68 64 64 59 47 39 32

70 67 63 63 58 48 40 34

66 65 62 63 58 48 39 32

68 66 63 63 58 47 39 33

77 76 72 72 67 56 50 45

75 74 71 70 64 57 49 42

73 72 70 70 64 58 51 43

73 71 70 70 64 57 50 42

86 83 79 77 76 71 60 54

83 81 77 75 72 66 60 53

82 80 75 74 72 66 60 54

82 79 75 74 72 66 61 54

92 95 89 85 84 82 70 63

91 93 86 82 79 74 68 62

89 90 82 79 78 74 69 64

88 88 81 79 78 74 69 64

96 101 97 95 92 91 86 71

94 99 95 92 88 84 78 71

93 96 90 88 86 82 78 74

93 96 90 88 86 82 78 74

72

70

70

70

80

77

76

76

L

Wi

A

64

63

63

63

89

85

83

82

98

94

91

91

RPM

225

325

450

650

915


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

72 69 67 67 62 52 45 38

71 69 66 66 62 52 45 38

71 68 65 66 62 53 46 39

71 69 65 66 62 53 46 40

80 77 74 74 69 60 52 45

79 75 73 71 66 59 52 44

78 74 71 71 66 59 52 45

79 75 71 71 66 59 52 45

90 84 82 81 78 72 61 53

88 83 80 80 75 68 60 52

87 82 78 77 74 68 61 53

87 82 77 77 73 67 61 54

91 92 91 90 86 83 74 65

90 91 88 87 82 77 70 63

89 89 86 84 80 76 70 65

90 90 85 84 80 76 71 65

95 99 100 100 95 93 88 75

94 98 97 97 92 88 81 73

95 96 95 93 89 85 80 74

96 97 95 93 89 85 80 75

74

72

71

72

82

80

79

78

L

Wo

A

67

67

66

67

91

88

86

86

101

98

95

95



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-44 Class II

QEI-44II


Maximum Fan RPM


1129

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


10 hp

365T

54.25 in.

2300 lbs.

7.5 kW

1378 mm

1043 kg.




% WOV = (CFM x 100) / (Fan RPM x 57.5)


20

15

10

5

0

10

9

40

60

75

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

8

7

6

5

4

3

2

1

0

0

30

20

10

5

5

DO

N

OT

S

EL

EC

T

TO

T

H

E

468

LE

FT

O

F

TH

IS

S

590

Y

S

TE

M

C

U

R

VE

743

850

936

70% WOV

1071

1129

80% WOV

90% WOV

10 15 20 25 30 35 40 45 50 55 60 65

Volume (cfm x 1000)

0 20 40 60 80 100

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

22000 1074

24500 1196

27000 1319

29500 1441

32000 1563

34500 1685

37000 1807

39500 1929

42000 2051

44500 2173

47000 2296

49500 2418

633

675

716

758

800

842


434 3.02

487 4.95

585 9.67

681 15.2

770 21.2

472

512

552

592

3.71

4.52

5.46

6.55

519

554

590

626

5.75

6.70

7.78

9.00

609

637

668

700

10.7

11.8

13.1

14.5

698

717

741

769

16.5

17.8

19.3

20.9

782

795

815

835

22.8

24.5

26.2

28.0

861

873

885

903

29.6

31.6

33.7

35.8

944

956

968

39.0

41.4

44.0

1021

1033

49.6

52.4

1094 61.1

860

888

30.1

32.3

923

945

38.0

985 46.5

40.4

1005 49.1

1045 55.3

1106

1062 58.2

1118

64.4

67.7

7.80

9.21

10.8

12.6

14.6

16.8

665

705

745

785

825

866

10.4

12.0

13.7

15.7

17.8

20.2

732

767

803

839

875

913

16.2

18.0

20.0

22.3

24.7

27.4

798

829

861

894

928

963

22.8

24.8

27.0

29.4

32.2

35.1

917

949

980

1012

34.7

37.4

40.2

43.3

972

1000

1029

1061

43.0

45.8

48.9

52.3

1025

1051

1079

1107

51.8

54.9

58.2

61.7

1082

1102

1126

61.3

64.4

67.9

885 19.2

907 22.8

952 30.3

999 38.3

1046 46.7

1093


55.8

RPM

325

450

650

900

1129


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

82 74 70 71 69 58 49 43

79 71 68 68 64 55 46 38

77 69 66 67 64 55 46 38

75 68 65 67 63 54 46 39

89 83 79 78 78 73 60 53

85 80 75 75 72 64 56 49

82 77 73 74 72 64 56 50

82 77 72 73 71 62 55 50

88 93 88 86 86 85 73 65

85 91 85 84 81 75 68 61

83 87 81 81 79 74 68 62

86 88 81 80 78 73 67 63

91 98 99 95 92 94 88 72

87 95 96 92 88 84 78 70

86 91 92 89 86 82 77 71

88 90 91 88 85 82 77 72

95 99 104 102 98 97 97 82

90 95 100 99 95 91 87 78

91 92 96 95 92 88 84 78

94 94 96 95 91 88 84 80

82

77

75

75

91

86

83

83

L

Wi

A

73

69

68

67

99

94

91

91

105

100

97

97

RPM

325

450

650

900

1129


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

85 77 75 75 71 61 53 46

84 76 73 74 69 59 51 43

83 75 71 73 68 58 51 44

83 75 70 72 68 58 51 44

87 84 82 81 79 73 62 54

86 83 81 80 75 67 59 51

86 81 78 79 74 66 59 52

86 82 77 77 73 65 59 52

90 92 92 91 87 85 75 66

87 90 89 89 83 78 70 61

86 87 86 86 81 76 69 62

89 89 86 85 80 74 68 63

93 96 100 99 95 94 89 75

90 93 98 97 92 88 81 72

92 91 94 94 89 85 79 73

94 93 95 94 89 84 79 74

98 101 105 105 100 99 98 84

95 97 103 104 98 94 88 80

98 98 99 100 95 91 86 79

99 100 101 100 94 90 85 80

83

81

79

78

93

89

86

86

L

Wo

A

76

74

73

73

101

98

95

95

107

104

101

101



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

45

QEI-49 Class I

QEI-49I


Maximum Fan RPM


828

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


10 hp

60 in.

364T

2400 lbs.

7.5 kW

1524 mm

1089 kg.




% WOV = (CFM x 100) / (Fan RPM x 88.4)


14

12

10

8

6

4

2

0

6

5

25

40 50

60% WOV

70% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

4

3

2

1

0

0

15

7½

3

DO

N

OT

S

EL

EC

T

TO

T

H

334

E

LE

FT

O

F

TH

IS

S

453

YS

TE

M

C

U

R

VE

570

10 20 30 40

676

50

791

Volume (cfm x 1000)

828

60

80% WOV

90% WOV

70 80

0 20 40 60 80 100 120

Performance Data

CFM

18000

OV

724

0.25

0.5

1


1.5

2 2.5

3 3.5

4


248 1.08

293 2.00

375 4.18

22000 885

26000 1046

30000 1207

34000 1368

38000 1529

42000 1690

46000 1851

50000 2012

54000 2173

58000 2334

62000 2494

4.95

6.34

8.01

9.96

1.52

2.10

2.85

3.79

12.2

14.8

17.8

450

494

538

582

285

325

366

407

626

670

714

6.35

7.88

9.67

11.8

2.51

3.16

4.02

5.06

14.2

16.9

20.0

472

513

554

597

323

356

393

432

640

683

727

9.43

11.2

13.2

15.5

4.91

5.77

6.77

7.98

18.1

21.1

24.5

514

552

590

630

394

418

448

479

670

711

752

13.0

14.8

17.0

19.5

7.67

8.73

10.0

11.4

22.4

25.5

29.2

558

590

625

662

459

477

500

527

700

739

779

532

551

574

601

629

661

694

730

767

805

12.0

13.4

15.1

16.9

18.9

21.3

23.9

26.9

30.3

34.1

696

728

760

794

597

618

641

668

25.8

28.6

31.7

35.2

17.1

19.0

21.1

23.3

732

759

792

823

647

659

682

705

30.7

33.6

36.9

40.6

21.2

23.1

25.5

28.0

703

719

742

766

793

820

27.6

29.9

32.8

35.8

38.9

42.3

755

776

799

824

34.6

37.7

41.0

44.4

46

RPM

200

300

425

575

828


Wi


% WOV

80

60

50

100

80

60

50

100

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

72 68 64 64 57 46 38 31

70 66 63 63 57 47 40 34

67 65 63 63 57 47 38 31

69 66 63 63 56 46 39 33

79 76 73 73 67 57 50 46

77 74 73 71 65 57 50 43

75 72 72 71 65 58 51 44

74 72 71 70 65 58 51 43

88 84 81 79 78 71 61 55

85 82 78 77 74 67 61 54

84 81 76 76 73 68 62 55

84 81 76 76 73 68 62 56

94 94 89 84 85 80 69 62

93 92 86 82 79 74 67 61

91 88 81 79 78 74 68 63

90 87 81 79 77 73 68 64

98 101 98 95 92 93 85 70

96 99 96 93 89 84 78 71

95 96 91 89 86 83 78 74

95 96 91 89 86 83 78 74

85

82

82

99

94

91

91

82

78

78

78

89

L

Wi

A

64

63

63

63

73

71

71

71

RPM

200

300

425

575

828


Wo

% WOV

80

60

50

100

80

60

50

100

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3

[dB ref 10 -12

4 5 6 watts]

7 8

72 69 67 67 60 51 44 37

72 69 67 67 60 52 44 37

71 68 66 67 60 52 45 39

71 68 66 67 61 52 46 39

81 78 76 75 69 61 53 45

80 76 74 72 67 60 52 45

79 75 72 72 67 60 53 45

80 75 73 72 67 60 53 45

91 85 84 82 80 73 62 55

89 84 82 81 76 69 61 53

89 83 80 79 75 69 62 54

88 83 79 79 75 69 62 55

92 92 91 89 87 81 73 64

92 90 88 86 82 76 69 62

90 88 86 84 80 76 70 64

91 89 86 83 80 75 70 65

97 100 102 100 96 94 87 74

96 98 99 97 92 88 81 73

96 96 96 94 90 86 80 74

97 97 96 94 90 85 81 75

87

86

85

102

98

95

95

84

82

80

80

91

L

Wo

A

67

67

66

67

75

73

72

73



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-49 Class II

QEI-49II


Maximum Fan RPM


1020

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


15 hp

60 in.

405T

3100 lbs.

11 kW

1524 mm

1406 kg.




% WOV = (CFM x 100) / (Fan RPM x 77.8)


20

15

10

5

0

10

9

50

75

100

50% WOV

60% WOV

8 40

7

6

5

4

3

2

1

0

0

30

20

10

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

Y

S

TE

M

C

U

R

VE

626

497

10 20 30

717

40

789

850

50

Volume (cfm x 1000)

70% WOV

973

1020

60

RPM

BHP

% WOV

Density 0.075 lb/ft

Density 1.2 kg/m 3

3

80% WOV

90% WOV

70 80

0 20 40 60 80 100 120

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

27000 1078

30000 1198

33000 1317

36000 1437

39000 1557

42000 1677

45000 1797

48000 1916

51000 2036

54000 2156

57000 2276

60000 2396

570

607

644

681

718

755


393 3.72

441 6.09

530 11.9

616 18.7

697 26.0

427

462

498

534

4.55

5.52

6.65

7.95

470

501

533

565

7.05

8.18

9.48

10.9

551

576

604

631

13.1

14.4

16.0

17.7

631

648

669

694

20.2

21.8

23.5

25.5

707

719

736

754

28.0

30.0

32.0

34.2

778

789

800

816

36.2

38.6

41.1

43.6

853

864

874

47.7

50.6

53.6

923

933

60.5

63.9

988 74.6

776

801

36.6

39.2

834

852

46.3

49.1

890

907

56.6

59.7

944

959

67.4

999

70.9

1010

78.5

82.5

9.43

11.1

13.0

15.1

17.5

20.1

599

634

670

705

741

777

12.6

14.5

16.6

18.9

21.4

24.2

660

691

722

754

786

820

19.6

21.8

24.2

26.9

29.8

32.9

719

748

775

804

835

866

27.7

30.1

32.7

35.6

38.8

42.3

826

854

882

910

42.1

45.3

48.7

52.3

876

901

927

955

52.3

55.6

59.2

63.2

925

947

972

997

63.0

66.7

70.6

74.7

976

994

1014

74.5

78.3

82.4

793 23.0

814 27.3

854 36.4

898 46.1

940 56.4


983 67.5

RPM

300

425

575

825

1020


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

82 75 72 73 69 58 50 44

79 72 69 70 65 56 47 39

77 69 67 69 64 55 47 39

76 68 66 68 63 55 47 39

91 85 81 79 81 73 61 55

87 81 77 77 74 65 57 50

84 78 75 76 73 65 57 51

84 78 74 75 72 63 57 51

91 92 88 86 88 83 72 64

88 89 86 84 80 74 67 60

86 86 82 81 79 74 67 61

88 87 81 80 77 72 66 62

93 100 99 96 93 95 87 71

89 97 97 93 89 85 78 70

88 93 93 90 87 83 77 71

90 92 92 89 86 82 78 73

96 102 105 102 98 99 96 80

91 97 101 99 95 91 86 77

92 94 97 96 92 89 84 78

94 95 97 95 91 88 84 80

83

78

77

76

91

86

83

82

L

Wi

A

73

70

69

68

100

95

92

91

105

101

97

97

RPM

300

425

575

825

1020


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

85 78 76 77 71 61 53 47

84 77 75 75 69 59 51 44

83 75 73 75 68 59 51 44

83 75 71 74 68 58 51 45

89 85 84 83 81 74 63 55

88 84 83 82 76 69 60 52

88 83 80 80 75 68 60 53

88 83 79 79 74 67 60 54

91 93 93 90 88 83 74 64

89 90 90 88 83 77 69 60

87 87 87 85 81 75 68 62

90 88 86 84 80 74 68 63

95 98 101 99 95 96 89 74

92 95 99 98 93 88 81 72

93 92 96 95 90 85 79 73

96 94 97 94 89 84 79 74

99 103 106 105 101 100 97 83

96 99 104 104 98 94 88 79

98 99 101 100 95 91 86 79

100 101 102 100 95 90 85 80

85

82

81

80

93

89

86

86

L

Wo

A

77

75

74

74

102

99

96

95

107

104

101

101



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

47

QEI-54 Class I

QEI-54I


Maximum Fan RPM


752

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


10 hp

66 in.

365T

2900 lbs.

1676 mm

1315 kg.




% WOV = (CFM x 100) / (Fan RPM x 118)

7.5 kW


14

12

10

8

6

4

2

0

6

5

4

3

2

1

0

0

30

40 50 60

60% WOV

RPM

70

% WOV


Density 1.2 kg/m 3

70% WOV

20

10

5

DO

NO

T S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

337

YS

TE

M

C

U

R

VE

425

10 20 30

536

613

675

40 50

Volume (cfm x 1000)

60

752

70

80% WOV

90% WOV

80 90

0 2 4 6 8 10 12 14

Performance Data

CFM

23000

OV

755

0.25

0.5

1


1.5

2 2.5

3 3.5

4


234 1.43

272 2.56

343 5.24

27800 912

32600 1070

37400 1227

42200 1385

47000 1543

51800 1700

56600 1858

61400 2015

66200 2173

71000 2330

75800 2488

6.32

8.06

10.1

12.5

1.99

2.73

3.68

4.87

15.3

18.5

22.2

418

457

497

536

268

304

341

379

576

616

656

8.05

9.94

12.2

14.7

3.21

4.05

5.13

6.44

17.7

21.1

24.9

437

474

511

550

300

331

365

400

589

628

667

11.8

14.0

16.4

19.3

6.20

7.25

8.50

10.0

22.6

26.2

30.4

475

508

543

579

363

386

414

442

616

653

690

16.2

18.4

21.1

24.2

9.54

10.9

12.5

14.1

27.7

31.6

36.0

514

542

574

608

420

439

460

485

643

678

714

486

505

527

551

578

607

636

669

703

737

14.8

16.7

18.8

20.9

23.4

26.3

29.5

33.2

37.4

42.0

536

546

567

588

612

638

667

696

727

19.4

21.2

23.6

26.1

28.8

31.8

35.3

39.1

43.4

590

603

624

646

670

695

725

26.2

28.5

31.5

34.5

37.8

41.3

45.4

641

658

679

701

725

751

33.9

36.9

40.4

44.0

47.8

52.0

679

689

710

730

39.7

42.6

46.4

50.4

48

RPM

200

275

375

525

752


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

75 71 67 67 60 49 41 34

73 69 66 66 60 50 43 37

71 68 66 66 60 49 41 34

72 69 66 66 59 49 42 36

80 77 74 74 66 57 51 47

78 74 74 71 65 57 50 43

76 72 73 71 65 58 51 44

76 72 73 71 65 58 51 43

87 84 80 79 79 69 60 55

85 82 78 77 73 66 60 53

84 80 76 76 73 67 61 54

84 80 76 76 72 67 61 55

96 94 89 85 87 79 69 62

95 92 86 83 79 74 67 61

93 88 82 80 78 74 69 64

91 87 81 80 78 74 69 64

100 101 98 96 93 94 84 69

98 99 96 93 89 84 78 71

97 95 92 89 87 83 79 74

97 95 92 89 87 83 79 74

74

72

71

71

81

78

77

77

L

Wi

A

67

66

66

66

90

85

83

83

99

95

92

92

RPM

200

275

375

525

752


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

75 72 70 70 63 54 47 40

74 71 69 70 63 54 47 40

74 71 69 70 63 55 48 42

74 71 69 70 64 55 49 42

82 78 77 75 69 61 53 45

81 76 75 73 67 60 52 45

80 75 74 72 67 60 53 45

81 75 74 73 67 60 53 45

90 85 84 82 80 70 61 53

88 83 83 81 75 68 60 52

88 82 80 79 74 68 61 53

88 82 80 79 74 68 61 54

94 93 92 89 88 81 72 64

93 91 89 87 82 76 69 62

91 88 87 84 81 76 70 64

93 89 86 84 80 76 70 65

98 101 103 100 96 95 86 73

98 99 100 97 93 88 81 73

97 97 97 94 90 86 80 74

98 98 97 94 90 86 81 75

76

73

73

73

84

81

80

79

L

Wo

A

70

69

69

70

92

88

86

86

102

98

96

96



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-54 Class II

QEI-54II


Maximum Fan RPM


929

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


15 hp

66 in.

405T

3600 lbs.

1676 mm

1633 kg.




% WOV = (CFM x 100) / (Fan RPM x 104)

11 kW


20

15

10

5

0

10

75 100 125

50% WOV

60% WOV

8

50

6

4

2

0

0

30

20

10

DO

N

OT

S

EL

EC

T

TO

T

H

E

LE

FT

O

F

TH

IS

S

Y

S

TE

M

C

U

R

VE

424

534

611

10 20 30

725

830

40 50 60

Volume (cfm x 1000)

70

70% WOV

929

80

RPM

BHP

% WOV


Density 1.2 kg/m 3

80% WOV

90% WOV

90 100

0 20 40 60 80 100 120 140 160

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

33500 1105

37000 1221

40500 1336

44000 1452

47500 1567

51000 1683

54500 1798

58000 1914

61500 2029

65000 2145

68500 2260

72000 2376


364 4.71

407 7.61

485 14.7

562 23.0

636 32.0

520

552

584

617

394

425

457

488

650

682

5.71

6.88

8.22

9.76

11.5

13.5

15.7

18.1

20.9

23.9

433

460

488

516

546

577

608

639

671

702

8.78

10.1

11.7

13.4

15.4

17.6

20.0

22.7

25.6

28.9

505

527

552

576

602

629

656

684

712

741

16.1

17.7

19.6

21.6

23.9

26.5

29.3

32.3

35.7

39.3

577

592

611

632

655

680

704

729

756

784

24.8

26.7

28.8

31.1

33.6

36.5

39.5

42.9

46.6

50.7

645

656

671

687

707

728

750

775

800

824

34.3

36.6

39.0

41.6

44.4

47.5

50.8

54.5

58.5

62.8

710

719

728

743

759

775

796

818

840

865

44.4

47.2

50.1

53.1

56.2

59.5

63.2

67.1

71.2

75.9

777

786

796

810

825

840

860

881

903

58.3

61.7

65.2

68.7

72.3

76.2

80.4

85.0

89.7

840

849

859

872

887

903

920

73.7

77.7

81.8

85.9

90.1

94.5

99.3

899

909

918

90.7

95.2

99.9

715 27.2

734 32.4

771 43.3

811 55.0

850 67.4


889 80.8

926 94.9

RPM

275

375

525

750

929


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

81 75 72 75 69 58 50 44

79 72 70 71 65 55 47 38

77 70 68 70 64 55 47 39

76 69 68 70 63 55 47 39

90 84 80 79 81 70 60 54

87 80 77 77 72 64 56 49

83 77 75 76 72 63 56 50

84 77 74 76 70 62 56 50

93 92 89 87 89 82 72 63

91 89 87 85 81 74 67 60

88 85 83 82 79 74 67 61

90 86 82 81 78 72 67 63

95 101 100 96 94 97 86 70

91 98 97 94 89 85 78 70

90 95 93 90 87 83 77 71

91 93 92 89 86 82 78 73

97 104 105 102 99 101 95 79

92 99 102 100 95 92 86 77

93 96 98 96 92 89 84 79

95 96 97 95 92 89 85 80

83

78

77

76

92

86

84

83

L

Wi

A

74

71

70

69

101

95

93

92

106

101

98

97

RPM

275

375

525

750

929


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

84 78 77 78 71 61 54 47

84 77 76 76 68 59 51 44

83 75 74 76 68 59 51 44

83 75 73 76 67 58 51 45

88 85 85 82 81 71 61 54

88 84 83 81 75 67 59 51

88 82 81 80 74 66 59 52

88 81 79 79 73 65 59 53

93 93 94 90 89 83 73 64

90 90 91 88 83 77 69 60

88 87 88 85 81 75 68 62

91 88 87 85 80 74 68 63

96 99 103 99 96 97 87 73

93 96 101 98 93 88 81 72

94 94 97 95 90 86 79 73

97 96 98 94 90 84 79 74

100 104 108 105 101 102 96 82

97 101 105 104 98 94 88 79

99 99 102 100 96 91 86 79

101 102 103 100 95 91 85 80

84

82

80

79

93

89

87

86

L

Wo

A

78

76

75

75

103

99

96

96

108

105

101

101



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

49

QEI-60 Class I


Maximum Fan RPM


680

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


15 hp

73 in.

405T

3500 lbs.

1854 mm

1588 kg.




% WOV = (CFM x 100) / (Fan RPM x 159)

11 kW


8

6

4

12

10

2

0

18

16

14

8

7

75

60

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

6

50

70% WOV

5

4

3

2

1

40

30

25

20

15

10

DO

NO

T S

EL

EC

T

TO

T

350

40

HE

L

EF

T

O

F

TH

IS

0

S

YS

TE

500

M

C

U

R

VE

60

0

68

0

80% WOV

90% WOV

0

0 20 40 60 80 100 120

Volume (cfm x 1000)

0 20 40 60 80 100 120 140 160 180 200

Performance Data

CFM OV

34000 912

40000 1073

0.25

0.5

1


1.5

2 2.5

3 3.5

4


242 2.43

271 3.92

328 7.58

380 11.7

276 3.36

300 4.98

349 8.89

397 13.4

439 18.2

484 23.7

46000 1234

52000 1395

58000 1556

64000 1717

70000 1878

76000 2039

82000 2200

88000 2361

94000 2522

100000 2683

454

490

527

564

310

345

381

417

601

638

12.7

15.8

19.4

23.5

4.56

6.06

7.89

10.1

28.2

33.5

467

502

538

575

331

364

398

432

611

647

15.3

18.5

22.3

26.6

6.33

8.00

10.0

12.4

31.5

37.0

495

529

562

597

374

402

432

463

631

666

20.5

24.2

28.3

33.0

10.5

12.4

14.7

17.4

38.3

44.2

523

555

586

619

652

417

440

465

493

26.3

30.3

34.7

39.7

45.3

15.3

17.4

20.0

22.9

551

579

610

642

673

458

477

500

525

32.6

36.7

41.5

46.8

52.7

20.5

23.1

25.8

29.0

580

606

634

663

494

514

533

556

39.4

43.8

48.7

54.3

26.0

29.0

32.2

35.6

534

547

566

586

609

632

659

32.1

35.1

38.8

42.6

46.7

51.3

56.5

580

596

616

636

659

41.6

45.5

49.9

54.4

59.2

615

625

644

663

48.8

52.5

57.2

62.3

50

RPM

300

400

500

600

680


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

85 81 78 78 73 63 56 51

83 79 77 75 69 62 55 49

82 77 76 75 69 63 56 49

81 77 76 75 69 63 56 49

92 89 84 82 83 72 64 58

91 86 82 80 76 70 63 57

89 84 79 79 76 70 65 59

89 83 79 79 75 70 65 59

99 96 90 87 89 79 70 63

97 93 87 85 81 75 69 63

95 89 83 82 80 75 70 65

94 88 83 82 80 75 70 65

101 101 95 91 92 87 76 69

99 99 93 89 86 80 74 68

98 96 88 86 84 80 75 70

96 95 88 86 84 80 75 70

103 105 99 95 94 92 81 73

101 104 97 92 90 85 78 72

99 101 92 89 88 84 79 74

99 99 92 89 88 84 79 74

86

82

81

81

92

87

85

85

L

Wi

A

78

76

75

75

96

92

89

89

100

96

93

93

RPM

300

400

500

600

680


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

86 82 82 80 75 65 57 50

85 81 80 78 71 64 57 49

85 79 78 77 71 65 57 49

85 79 78 77 71 64 57 50

92 89 89 86 84 75 66 58

92 87 87 84 78 72 64 56

91 85 84 82 77 72 65 58

91 85 84 82 77 72 65 59

96 94 94 91 90 82 73 65

95 92 91 88 83 78 70 63

93 90 89 86 82 77 71 65

95 90 88 86 82 77 72 67

98 99 98 96 93 88 79 71

98 97 95 93 88 83 76 69

96 95 93 91 87 82 77 71

98 96 92 90 87 82 77 72

100 102 101 100 96 93 84 76

99 101 98 97 92 87 81 73

98 99 95 95 91 87 81 75

100 100 95 94 90 86 81 76

88

85

83

83

94

90

88

88

L

Wo

A

80

78

77

77

98

94

93

92

102

98

96

96



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

QEI-60 Class II


Maximum Fan RPM


840

Maximum Motor

Frame Size

Minimum Motor

Starting hp

Wheel Diameter

Approximate Weight


15 hp

73 in.

405T

4200 lbs.

1854 mm

1905 kg.




% WOV = (CFM x 100) / (Fan RPM x 140)

11 kW


25

20

15

10

5

0

12

100 125 150

50% WOV

60% WOV

RPM

BHP

% WOV


Density 1.2 kg/m 3

10

8

6

4

2

75

60

50

40

30

25

20

15

DO

N

OT

S

EL

EC

T

350

TO

T

H

E

LE

FT

O

F

TH

IS

450

S

YS

TE

M

C

U

R

VE

600

750

840

70% WOV

80% WOV

90% WOV

0

0 20 40 60 80 100 120

Volume (cfm x 1000)

0 50 100 150 200

Performance Data

CFM OV 0.5

1 2


3 4 5 6 7 8

40000 1073

45000 1207

50000 1341

55000 1476

60000 1610

65000 1744

70000 1878

75000 2012

80000 2147

85000 2281

90000 2415

95000 2549


323 5.51

362 9.20

436 17.6

507 27.6

573 38.5

488

522

556

591

355

388

421

454

625

660

6.91

8.58

10.6

12.9

15.5

18.6

22.0

25.9

30.3

35.2

390

418

448

479

511

543

576

610

643

677

10.6

12.6

14.8

17.4

20.4

23.8

27.5

31.8

36.5

41.7

455

479

504

531

559

588

617

647

678

710

19.6

21.9

24.6

27.6

31.1

35.0

39.3

44.1

49.4

55.3

520

537

557

580

605

631

658

687

715

745

30.2

32.9

35.9

39.3

43.2

47.5

52.2

57.6

63.4

69.8

583

595

611

628

651

674

699

724

751

779

41.8

45.1

48.6

52.4

56.6

61.3

66.5

72.2

78.3

85.1

641

651

662

678

694

715

738

762

787

813

54.1

58.1

62.3

66.6

71.1

76.2

81.8

87.8

94.5

101.7

704

713

724

740

757

776

799

822

71.7

76.6

81.7

86.7

92.1

98.1

104.6

111.5

762

772

783

799

815

834

91.5

97.2

103.1

109.1

115.3

122.1

817

827

839

113.4

119.9

126.7

695 40.7

711 47.5

742 61.7

774 76.7

808 92.6


840 109.3

RPM

300

450

600

750

840


Wi


% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3 4 5 6 7 8

86 80 77 78 76 64 56 49

83 77 75 75 69 60 52 44

81 74 73 75 68 59 52 45

80 73 72 74 67 59 52 45

95 90 88 86 89 79 70 61

93 87 86 84 79 72 65 58

90 83 82 82 78 72 65 59

91 84 81 81 77 70 65 61

96 98 96 93 93 91 80 66

94 95 94 91 86 81 73 66

91 91 90 88 84 79 73 67

92 91 89 87 83 78 74 69

98 103 103 99 97 99 89 73

95 101 100 96 92 88 81 72

93 97 96 93 90 86 80 74

94 97 95 92 89 85 81 76

100 105 106 102 100 101 94 78

96 102 103 100 95 91 85 76

95 99 99 96 93 89 84 78

97 100 98 95 92 89 84 79

91

85

83

82

98

92

90

89

L

Wi

A

79

75

74

74

104

98

95

95

107

101

99

98

RPM

300

450

600

750

840


Wo

% WOV

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

100

80

60

50

1 2 3


4 5 6 7 8

87 82 82 81 77 66 58 51

86 81 81 80 72 64 55 48

86 79 78 80 71 63 56 49

86 78 77 79 70 62 56 49

93 92 93 89 89 80 71 62

91 89 91 87 82 75 66 58

90 87 88 85 80 73 66 60

92 87 87 84 79 72 67 61

96 98 100 96 94 92 81 69

93 95 98 94 89 84 76 67

93 93 95 91 87 81 75 69

95 94 95 91 86 80 75 70

99 102 105 103 99 99 90 76

96 99 104 101 96 91 83 75

97 98 100 98 93 88 82 76

99 100 100 97 92 87 82 77

101 104 107 106 102 102 95 81

98 101 105 104 99 95 88 79

99 101 102 101 96 92 86 79

102 104 103 101 96 91 86 81

92

88

86

85

99

96

93

92

L

Wo

A

82

80

79

78

105

102

99

99

108

105

102

102



L

Wo


Wi

, L

Wi

A and outlet L

Wo

,



Wi

A and L

Wo

A values only.

51

Specifications

Model QEI-L, QEI-I/II and QEID

Supply, exhaust, or return air fans shall be of the inline mixed flow type.

The housing shall be constructed of welded heavy-gauge steel to assure no air leakage.

Housing shall have inlet and outlet collars for slip-fit duct connections. The housing and bearing and/or motor supports shall be constructed of heavy-gauge steel members to prevent vibration and rigidly support the shaft and bearings. Welded steel vanes shall straighten the flow of air from the fan discharge.

All QEI-L and QEI-I/II units up through size

27 shall incorporate a universal mounting system that allows the fan to be mounted in either vertical or horizontal configurations and field rotation of the motor position in

90 degree increments. Bearing life shall not be reduced below specified level in different configurations. QEI-I/II units size 30 and larger shall allow for field rotation of motor positions. Units shall accommodate base mount or ceiling hung mounting without structural modifications to the fan.

The wheel shall be of the mixed flow type.

Wheels shall have a wheel cone, spherical back plate and single thickness cambered blades. Wheels shall be statically and dynamically balanced to balance grade

G6.3 per ANSI S2.19. The wheel cone and fan inlet cone shall be carefully matched and shall have precise running tolerances for maximum performance and operating efficiency.

Each assembled fan shall be test run at the factory at the specified fan RPM. The maximum allowable fan vibration shall be

0.15 in/sec. peak velocity, filter-in for

QEI-I/II with signatures taken on each bearing in three planes; horizontal, vertical, and axial. Maximum vibration of 0.08 in/sec. peak velocity, filter-in for QEID in a single plane on the fan housing. This report shall be provided at no charge to the customer upon request.

Inlet and outlet sound power levels shall be provided for each of the eight octave bands at the point of operation.

Fans shall be licensed to bear the AMCA

Seal for Sound and Air Performance.

Mixed flow fans shall be Model QEI-L,

QEI-I/II or QEID as manufactured by

Greenheck Fan Corporation, Schofield,

Wisconsin, USA and shall be supplied as shown on the plans and in the fan schedule.

Additional Belt Drive Specification

Turned, precision ground and polished steel shafts shall be sized so the first critical speed is at least 25% over the maximum operating speed. Close tolerances shall be maintained where the shaft makes contact with the bearings.

Bearings shall be heavy-duty, grease lubricated, self-aligning ball or roller type with extended lubrication lines.

QEI-I/II and QEI-L (horizontal mount) bearings shall be selected for a minimum life L

10

of 80,000 (L

50

of 400,000) hours at maximum operating speed. QEI-L (vertical mount) bearings shall be selected for a minimum life, L

10

of 50,000 (L

50

of 250,000) hours at maximum operating speed.

Our Warranty

Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the shipment date. Any units or parts which prove defective during the warranty period will be replaced at our option when returned to our factory, transportation prepaid. Motors are warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck prove defective during this period, they should be returned to the nearest authorized motor service station. Greenheck will not be responsible for any removal or installation costs.

As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice.

Prepared to Support

Green Building Efforts

P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com

00.CVI.1018 R7 5-2012 IP

Copyright © 2012 Greenheck Fan Corp.

Greenheck Fan Mixed Flow Fans Belt and Direct Drive QEI User's Manual

Mixed Flow Fans

Belt and Direct Drive

Models QEI-L, QEI, QEID

Quiet & Efficient, Inline

Typical Mixed Flow Applications:

Model QEI-L – Belt Drive

Model QEI-I/II – Belt Drive

Model QEID – Direct Drive

Standard Construction

Housing

Wheel – Mixed Flow

Bearings (Belt Drive)

Bolted Access Door

Belt Guard (Belt Drive)

Slip-Fit Duct Connection (QEI-I/II & QEID)

Adjustable Motor Bases (Belt Drive)

Extended Lube Lines

Permatector™ Coating

Value Added Features

Quality Assurance Test

Electrostatic Powder Coatings

Maintenance / Serviceable Construction Advantages

Inlet and Outlet Sound Power Levels

Field Rotatable Housing / Compact Size

Slip-Fit Duct Connections

Patented (QEI/QEID)

AutoCAD

and 3-D Revit

Models

Design & Performance

Airflow Profiles

Lower Sound Power, Better Sound Quality

Wheel Characteristics

Optional Features

Sure-Aire™

Sound Sensitive Areas

Sound Vault Housing - Radiated Sound Enclosure

Why use a Sound Vault?

Optional Two-coat

Paint System

Zinc Advantage

Certifications & Listings

Seismic Certification

UL 705 Power Ventilator

UL Emergency Smoke Evacuation

UL 762 Restaurant Exhaust

A Tough Package to Beat

Belt Drive versus Direct Drive

Belt Drive Advantages

Direct Drive Advantages

High Efficiencies = Lower Operating Costs

Tubular Centrifugal Fan

QEI-I - Mixed Flow Fan

Belt Drive Mounting

Configurations

Universal Mounting

Horizontal Mounting

Vertical Mounting

Roof Upblast & Spark Resistant

Construction

Accessories

Exploded View

Direct Drive Selection Charts

Model QEID

12—33

Model QEID

15—49

QEID Dimensional Data

Model QEID

36—54

QEI Dimensional Data

QEI-L

QEI

QEI-L QEI Class I

QEI Class II

QEI-9 Class II

QEI-12 Class I & QEI-L

QEI-12 Class II

QEI-15 Class I & QEI-L