Greenheck Fan Sq Users Manual

SQ to the manual b045ef74-65ab-499c-a950-30eece64650e

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Page Count: 44

Centrifugal Inline Fans

Models SQ and BSQ

Direct and Belt Drive

April

2008

2

Greenheck’s model SQ and BSQ centrifugal inline fans feature a unique combination of installation

flexibility, rugged construction, ease of service, high efficiency, and

low sound levels. These compact inline fans are the ideal selection for

indoor clean air applications including intake, exhaust, return, or make-

up air systems where space is a prime consideration. The need for

costly square-to-round transition pieces are eliminated

reducing installation costs. The square housing design,

compact size, and straight-thru airflow also give the

system designer the flexibility to mount SQ and BSQ fans

in any configuration - horizontal, vertical, or at any angle.

 

(1,000 Pa) and 28,000 cfm (47,000 m3/hr).

 





performance seals.

 

 

assuring you the fans will provide many years of reliable performance

Greenheck Fan Corporation certifies the model SQ and BSQ

fans 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 Publication

311 and comply with the requirements of the AMCA Certified

Ratings Program. The certified ratings for models SQ and BSQ

are shown on pages 11 to 41.

*UL is optional and must be

specified. SQ and BSQ models are

listed for electrical (UL/cUL 705)

File no. E40001

Models SQ & BSQ

Centrifugal Square Inline Duct Fans

World Class Manufacturing

Greenheck’s skilled production workers use cost-effective

machines and unique dies, designed and built by our own

engineers to add innovative features and greater strength

to our centrifugal inline fans. Our advanced manufacturing

processes and quality control procedures always ensure



peace-of-mind you expect when you specify Greenheck,

our assembly inspectors test run and monitor every fan

before it leaves the factory. Results of these tests are kept

in permanent records for future reference.

3

The Greenheck Standard



input to remain the industry leader.

 



amp draw test.

 

with complete model number, mark, and unique serial

number for future identification.

 



Turn to our inline fans to meet your requirements for

applications in office buildings, schools, and hospitals to

name a few.

Quick Delivery and Quick Build Programs



configurations within our strategically located Greenheck warehouses.









needs dictating manufacturing time. Your custom product configuration

can be manufactured in one, three, five, or ten days and then shipped to



Leading Edge Technical Support

When you need extensive product or



information, our products are supported

by the industry’s best product literature,

electronic media, and computer aided



also find this information on our website at

www.greenheck.com

You can always count on personal service and expertise from our

national and international representative organization. To locate your

nearest Greenheck representative, call 715-359-6171 or visit our

website at www.greenheck.com







































5

Standard Construction Features



The fan housing is constructed of rigid structural

members and formed galvanized steel panels.









centrifugal wheel is utilized to deliver maximum



dynamically balanced.





for easy duct connection. The square design

provides a larger discharge area than tubular,

centrifugal, and vane axial fans; outlet velocities

are reduced for quieter operation.



The cabinet construction features two side



to all internal components. The access panels

have been removed on the drawing.







fasteners, sliding the motor plate, and retightening

fasteners.





motors are selected to provide years of trouble-

free operation with minimal maintenance.



100 percent factory tested and designed

specifically for air handling applications with a

1050





Drives are sized for a minimum of 150 percent







static free and oil resistant.





first critical speed is at least 25 percent over the



where the shaft makes contact with bearings

result in longer bearing life.





and wiring is provided from the motor as







disconnect switches are optional.

6

Options and Accessories





drive sizes 60-160 and belt drive sizes 70-300.







open motors on model

SQ fans. They provide

an economical means of

system balancing with

direct drive fans.





non-ducted applications. Guards are fabricated of

welded wire on a galvanized steel frame. They are

easily removed for maintenance and inspection.





and belt guards constructed of galvanized steel

are available for protection of motors, drives, and







available to isolate direct drive motors from the

airstream. When motor covers are furnished, vents

to the exterior of the fan are provided to ensure

sufficient motor cooling.







for duct mounting. These

dampers feature sturdy

galvanized frames with

prepunched mounting

holes, aluminum blades

with felt edges, and a

balanced design for

minimal resistance to

airflow.



Square, opposed blade volume control dampers



dampers feature sturdy galvanized frames with

prepunched mounting holes, steel blades with vinyl



design results in minimal resistance to airflow.



Wide variety of coatings

and colors are available.

Decorative coatings

are available in sixteen

standard colors.

 are

available in a choice of

five electrostatic applied

powders providing an

available selection for

most environments.



be found in the performance coatings catalog.







and are factory assembled to the fan. They can be

specified for either manual or automatic operation

with controls furnished by others. These dampers

are constructed of heavy gauge painted steel

and feature uniform blade movement for positive



connections are also available.





the interior of the fan housing can be lined with a



The optional motor cover can also be insulated.

The table depicts the dB reduction that can be

obtained in each octave band for the insulated

housing and motor cover together.





eliminating field wiring at the fan.



Octave Band 1 2 3 5678

Sizes 60 - 130 -2 -7 -4 -4 -6 -13 -13 -9

Sizes 140 - 420 -3 -2 -5 -4 -5 -5 -7 -8

7

The side discharge option provides several advantages

including removal of a system effect problem, increasing

performance, or even reducing installation labor. The



example in figure 1 showing the air being discharged



the airflow becomes smooth again after making the

turn. This is not the case with a side discharge. See

figure 2; when the air comes into the fan at the corner

and leaves the fan at the corner, the airflow is smoother

and provides a more predictable system. Remember the

duct length prior to or following the installation location

should be approximately two to three wheel diameters to

achieve catalog performance.

Discharge Configuration



direction as it was originally ordered. The performance

will change with different discharge positions. Right side

discharge will give you 108% of cataloged performance

and left side will give you 109% of cataloged







consult factory for performance modifications.

Side Discharge

SQ Side Discharge

Duct Openings

 Width 

60-75 97⁄8 (251) 87⁄8 (225)

80-95 127⁄8 (327) 117⁄8 (302)

100 137⁄8 (352) 137⁄8 (352)

120 157⁄8 (403) 157⁄8 (403)

130 177⁄8 (454) 177⁄8 (454)

140 197⁄8 (505) 197⁄8 (505)

160 227⁄8 (581) 227⁄8 (581)

BSQ Side Discharge

Duct Openings

 Width 

70-80-90 117⁄8 (302) 117⁄8 (302)

100 137⁄8 (352) 137⁄8 (352)

120 157⁄8 (403) 157⁄8 (403)

130-130HP 177⁄8 (454) 177⁄8 (454)

140-140HP 197⁄8 (505) 197⁄8 (505)

160-160HP 227⁄8 (581) 227⁄8 (581)

180-180HP 237⁄8 (606) 237⁄8 (606)

200-200HP 277⁄8 (708) 277⁄8 (708)

240-240HP 287⁄8 (733) 347⁄8 (886)

300-300HP 317⁄8 (810) 417⁄8 (1064)

360-360HP 327⁄8 (835) 377⁄8 (962)

420 347⁄8 (886) 437⁄8 (1114)

All dimensions in inches (millimeters).

Figure 2

Figure 1

Fan

Fan

Left Side

Discharge

Right Side

Discharge

Inline

Discharge

Inlet

Height

Width

Height

Left Side

Discharge

Right Side

Discharge

Inline

Discharge

Inlet

Width

Figure 5

Figure 4

+12%

+9%

+8%

+12%

Figure 3 - Percentages based on cataloged performance.

8

Filter Options

The filter box is designed to provide a compact and convenient clean air solution.



designing, fabricating, and installing special remote filter box assemblies. Both

the fan and filter section feature removable access panels on both sides to

remove and replace filters, making fan maintenance simple and fast.

  BD WT.  

Quantity

SQ-60 - 75 221⁄8

(562)

12

(305)

87⁄8

(225)

1

(25)

40

(18)

10 x 12

(254 x 305) 1

SQ-80 - 95 455⁄8

(1159)

15

(381)

117⁄8

(302)

1

(25)

74

(34)

14 x 25

(356 x 635) 1

SQ-100 471⁄4

(1200)

17

(432)

137⁄8

(352)

1

(25)

88

(40)

16 x 20

(406 x 508) 2

SQ-120 523⁄16

(1326)

19

(483)

157⁄8

(403)

1

(25)

114

(52)

16 x 25

(406 x 635) 2

SQ-130 463⁄8

(1178)

21

(533)

177⁄8

(454)

1

(25)

120

(54)

20 x 20

(508 x 508) 2

SQ-140 523⁄8

(1330)

23

(584)

197⁄8

(505)

1

(25)

174

(79)

20 x 25

(508 x 635) 2

SQ-160 513⁄8

(1305)

26

(660)

227⁄8

(581)

1

(25)

246

(112)

20 x 20

(508 x 508) 4

BSQ-70 - 80 - 90 505⁄8

(1286)

15

(381)

117⁄8

(302)

1

(25)

117

(53)

14 x 25

(356 x 635) 1

BSQ-100 471⁄4

(1200)

17

(432)

137⁄8

(352)

1

(25)

120

(54)

16 x 20

(406 x 508) 2

BSQ-120 523⁄16

(1326)

19

(483)

157⁄8

(403)

1

(25)

144

(79)

16 x 25

(406 x 635) 2

BSQ-130 - 130HP 463⁄8

(1178)

21

(533)

177⁄8

(454)

1

(25)

140

(64)

20 x 20

(508 x 508) 2

BSQ-140 - 140HP 523⁄8

(1330)

23

(584)

197⁄8

(505)

1

(25)

181

(82)

20 x 25

(508 x 635) 2

BSQ-160 - 160HP 513⁄8

(1305)

26

(660)

227⁄8

(581)

1

(25)

294

(133)

20 x 20

(508 x 508) 4

BSQ-180 - 180HP 551⁄16

(1399)

28

(711)

237⁄8

(606)

11⁄2

(38)

344

(156)

20 x 25

(508 x 635) 4

BSQ-200 - 200HP 6611⁄16

(1694)

32

(813)

277⁄8

(708)

11⁄2

(38)

441

(200)

12 x 25

(305 x 635) 3

16 x 25

(406 x 635) 3

BSQ-240 - 240HP 687⁄8

(1749)

39

(991)

347⁄8

(886)

11⁄2

(38)

573

(260)

20 x 25

(508 x 635) 4

16 x 25

(406 x 635) 4

BSQ-300 - 300HP 721⁄8

(1832)

46

(1168)

417⁄8

(1064)

11⁄2

(38)

759

(344)

20 x 25

(508 x 635) 8

BSQ-360 - 360HP 791⁄4

(2013)

52

(1321)

477⁄8

(1216)

11⁄2

(38)

957

(434)

16 x 25

(406 x 635) 10

20 x 25

(508 x 635) 5

BSQ-420 931⁄8

(2365)

58

(1473)

537⁄8

(1368)

11⁄2

(38)

1185

(538)

16 x 25

(406 x 635) 5

20 x 25

(508 x 635) 10

Note: 24-inch side clearance is recommended for accessing and removing filters.

All dimensions in inches (millimeters) and weight (WT.) in pounds (kilograms).

Model Selection Procedure









preliminary model size selected in step 2 using

the equation:

 10,000 2



pressure drop and make a revised model





cfm

 1 in.







1 in.





2 in.





2 in.





SQ BSQ

60-65-70-75 — 186 318.06 251.1 303.18

80-85-90-95 70-80-90 21.8 37.278 29.43 35.534

100 100 8.72 14.9112 11.772 14.2136

120 120 5.58 9.5418 7.533 9.0954

130 130 5.58 9.5418 7.533 9.0954

140 140 3.57 6.1047 4.8195 5.8191

160 160 2.09 3.5739 2.8215 3.4067

— 180 1.34 2.2914 1.809 2.1842

— 200 0.77 1.3167 1.0395 1.2551

— 240 0.41 0.7011 0.5535 0.6683

— 300 0.33 0.5643 0.4455 0.5379

— 360 0.15 0.2565 0.2025 0.2445

— 420 0.13 0.2223 0.1755 0.2119

Model SQ Model BSQ

B

A

B

C

C

A

C

D

C

D

Optional cover varies

with motor size.

Recommend 24 in.

clearance.

D

D

B

A

B

C

C

A

C

D

C

D

Optional cover varies

with motor size.

Recommend 24 in.

clearance.

D

D

9

Horizontal and Vertical Mounting

Options

 

Figure 6

With a hanging mount, the motor may be

located on either top or bottom. The base

mount allows top motor location only. Both

provide access panel on two sides.

Figure 7

With either a hanging or base mount the

motor may be located on either side. The

base mount allows top access panels only.

Figure 8

Mounting brackets are turned 90° for vertical

mounting. Access panels are located on the

two sides adjacent to mounting brackets.

AC

C

A

E

AB

A

B

E

FF

CA

C

E

F

A

B

B

D

D

D

B

B

B

A

B

E

F

A

AC

C

A

E

AB

A

B

E

FF

CA

C

E

F

A

B

B

D

D

D

B

B

B

A

B

E

F

A

AC

C

A

E

AB

A

B

E

FF

CA

C

E

F

A

B

B

D

D

D

B

B

B

A

B

E

F

A

AC

C

A

E

AB

A

B

E

FF

CA

C

E

F

A

B

B

D

D

D

B

B

B

A

B

E

F

A

AC

C

A

E

AB

A

B

E

FF

CA

C

E

F

A

B

B

D

D

D

B

B

B

A

B

E

F

A

AC

C

A

E

AB

A

B

E

FF

CA

C

E

F

A

B

B

D

D

D

B

B

B

A

B

E

F

A

Model A B C D E F G H I J K L M N

SQ 60-75 105⁄8 (270) 17 (432) 153⁄4 (400) 87⁄8 (225) 193⁄4 (502) 7 (178)

2

(51)

13⁄8

(35)

51⁄2

(140)

2

(51)

13⁄8

(35)

2

(51)

63⁄4

(171)

25⁄16

(59)

SQ 80-95 131⁄4 (337) 20 (508) 183⁄4 (476) 117⁄8 (302) 43 (1092) 273⁄8 (695)

BSQ 70-90 185⁄8 (473) 201⁄8 (511) 183⁄4 (476) 117⁄8 (302) 485⁄16 (1227) 273⁄8 (695)

SQ-BSQ 100 185⁄8 (473) 221⁄8 (562) 203⁄4 (527) 137⁄8 (352) 447⁄8 (1140) 24 (610)

SQ-BSQ 120 185⁄8 (473) 24 (610) 223⁄4 (578) 16 (406) 493⁄8 (1254) 281⁄8 (714)

SQ-BSQ 130 185⁄8 (473) 261⁄8 (664) 243⁄4 (629) 177⁄8 (454) 44 (1118) 23 (584)

SQ-BSQ 140 195⁄8 (498) 281⁄8 (714) 263⁄4 (679) 197⁄8 (505) 501⁄16 (1272) 28 (711)

SQ-BSQ 160 231⁄2 (597) 31 (787) 293⁄4 (756) 227⁄8 (581) 495⁄8 (1260) 235⁄8 (600)

2

(51)

13⁄8

(35)

51⁄2

(140)

2

(51)

13⁄8

(35)

2

(51)

63⁄4

(171)

25⁄8

(67)

BSQ 180 251⁄2 (648) 331⁄2 (851) 299⁄16 (751) 223⁄4 (578) 529⁄16 (1335) 241⁄2 (622)

BSQ 200 291⁄8 (740) 37 (940) 333⁄4 (857) 263⁄4 (679) 643⁄16 (1630) 321⁄4 (819)

BSQ 240 315⁄8 (803) 441⁄4 (1124) 403⁄4 (1035) 337⁄8 (860) 661⁄2 (1689) 321⁄8 (816)

BSQ 300 35 (889) 51 (1295) 473⁄4 (1213) 407⁄8 (1038) 691⁄8 (1756) 313⁄8 (797)

BSQ 360 383⁄4 (974) 571⁄4 (1454) 531⁄2 (1359) 463⁄4 (1187) 76 (1930) 3411⁄16 (881)

BSQ 420 471⁄8 (1197) 63 (1600) 597⁄8 (1521) 597⁄8 (1521) 901⁄2 (2299) 401⁄2 (1029)

All dimensions in inches (millimeters).



knockouts are provided at each location where mounting brackets are shown in figures 6, 7, and 8. Optional





weight of the individual fan sizes. The hanging isolator support brackets are designed to permit mounting of

the fan with the motor located on top, bottom, or side. The hanging rods are to be supplied by others. The

base isolator support brackets are designed to permit mounting of the fan with the motor located on top or

either side.

 

 

M

K

J

L

H

N

H

G

Isolator I.D.-BVI

I

J

K

5/8 in. Nominal

M

K

J

L

H

N

H

G

Isolator I.D.-BVI

I

J

K

5/8 in. Nominal

M

K

J

L

H

N

H

G

Isolator I.D.-BVI

I

J

K

5/8 in. Nominal

M

K

J

L

H

N

H

G

Isolator I.D.-BVI

I

J

K

5/8 in. Nominal

10

Typical Installation

Flexible duct (by others)

3 Wheel

Diameters

3 Wheel

Diameters

Model Number Code



specified to designate belt or direct drive. The remainder of the model number is determined by the size

and performance selected from the following pages.

 (Belt Drive Only)



BSQ - 240 HP - 7



BSQ

SQ



60 through 

 (Belt Drive only)

   

   

 1⁄2 1⁄2

  

 (Direct Drive only)

  

   

  





diameters is required on the inlet and outlet of the fan to prevent system effect losses. See the diagram

below for a typical installation.





The model BSQ ducted inline fan must be installed with the motor accessible for maintenance and

inspection.





10

1

(25)

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

11

SQ 60-65 - Direct Drive

Damper size = 9 x 9 (229 x 229)

Unit weight** = 26 (12)

Housing thickness = 20 ga

Outlet velocity = 1.828 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

13

(330)

12

(305)

*87⁄8

(225)

12

(305)

0 50 100 150 200 250 300 350 400

0

10

20

30

40

50

60

70

80

90

100

110

0 50 100 150 200 250

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

SQ-65-D

SQ-65-G

SQ-65-E

400

250

SQ-60-E

SQ-60-D

SQ-60-G

RPM

Density 0.075 lb/ft3

 









0 0.05 0.1 0.125 0.15 0.2 0.25 0.3 0.35 0.375

 1/140 1050

CFM 126 101 78 63 42

BHP 0.005 0.006 0.007 0.007 0.006

Sones 1.7 1.7 1.8 1.8 1.9

SQ-60-G 1/80 1300

CFM 156 135 117 109 99 72 37

BHP 0.01 0.011 0.012 0.012 0.013 0.013 0.012

Sones 2.5 2.5 2.5 2.5 2.5 2.5 2.5

SQ-60-D 1/40 1550

CFM 186 168 153 145 138 122 105 78 47 31

BHP 0.017 0.018 0.019 0.02 0.02 0.022 0.022 0.021 0.02 0.019

Sones 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.1 4.1 4.1

 1/100 1050

CFM 154 129 98 79 56

BHP 0.007 0.008 0.009 0.009 0.008

Sones 2.1 2.0 2.0 1.9 1.9

SQ-65-G 1/50 1300

CFM 191 171 149 137 123 92 52

BHP 0.013 0.014 0.016 0.016 0.017 0.016 0.015

Sones 2.9 2.9 2.9 2.9 2.9 2.8 2.8

SQ-65-D 1/30 1550

CFM 228 213 194 184 175 153 128 101 66 46

BHP 0.022 0.023 0.026 0.026 0.027 0.028 0.028 0.027 0.025 0.023

Sones 4.2 4.1 4.1 4.0 4.0 3.9 3.8 3.7 3.6 3.5

1

(25)

12

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

0 100 200 300 400 500 600

0

10

20

30

40

50

60

70

80

90

100

110

0 50 100 150 200 250 300 350 400

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

SQ-75-D

SQ-75-G

SQ-75-E

SQ-70-E

SQ-70-G

SQ-70-D

RPM

Density 0.075 lb/ft3

Damper size = 9 x 9 (229 x 229)

Unit weight** = 26 (12)

Housing thickness = 20 ga

Outlet velocity = 1.828 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

SQ 70-75 - Direct Drive

 









0 0.1 0.125 0.15 0.2 0.25 0.3 0.35 0.375 

 1/100 1050

CFM 212 140 118 86

BHP 0.008 0.009 0.009 0.009

Sones 2.7 1.7 1.5 1.5

SQ-70-G 1/50 1300

CFM 262 204 190 176 139 77

BHP 0.015 0.018 0.018 0.018 0.017 0.015

Sones 4.1 3.4 3.3 3.1 2.9 2.5

SQ-70-D 1/30 1550

CFM 313 265 252 240 216 189 155 99 67

BHP 0.026 0.029 0.03 0.03 0.03 0.03 0.029 0.026 0.025

Sones 5.6 5.2 5.1 5.1 4.9 4.7 4.5 4.2 4.0

 1/100 1050

CFM 241 167 146 123

BHP 0.01 0.011 0.011 0.01

Sones 3.6 2.9 2.8 2.6

SQ-75-G 1/50 1300

CFM 298 239 224 209 176 133

BHP 0.019 0.021 0.021 0.021 0.02 0.019

Sones 4.1 3.7 3.7 3.7 3.6 3.5

SQ-75-D 1/30 1550

CFM 356 306 294 281 256 229 201 164 137 99

BHP 0.032 0.034 0.035 0.035 0.035 0.035 0.034 0.033 0.032 0.029

Sones 6.1 5.5 5.4 5.3 5.1 4.9 4.9 4.8 4.8 4.8

13

(330)

12

(305)

*87⁄8

(225)

12

(305)

1

(25)

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

13

SQ 80-85 - Direct Drive

0 200 400 600 800 1000

0

20

40

60

80

100

120

140

160

0 100 200 300 400 500 600

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

SQ-80-D

SQ-80-G

SQ-80-E

SQ-85-D

SQ-85-G

SQ-85-E

RPM

Density 0.075 lb/ft3

Damper size = 12 x 12 (305 x 305)

Unit weight** = 41 (19)

Housing thickness = 20 ga

Outlet velocity = 1.021 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

16

(406)

15

(381)

*117⁄8

(302)

15

(381)

 









0 0.1 0.125 0.2 0.25 0.3 0.375   0.5

 1/40 1050

CFM 306 241 225 166 104

BHP 0.011 0.014 0.015 0.017 0.016

Sones 3.8 3.7 3.6 3.8 4.1

SQ-80-G 1/20 1300

CFM 378 324 312 273 244 210 140

BHP 0.021 0.025 0.026 0.029 0.032 0.032 0.031

Sones 5.4 5.4 5.4 5.4 5.4 5.4 5.5

SQ-80-D 1/12 1550

CFM 451 405 394 363 342 318 280 266 238 201

BHP 0.035 0.039 0.041 0.045 0.047 0.051 0.055 0.055 0.055 0.055

Sones 7.3 7.3 7.3 7.3 7.2 7.3 7.3 7.4 7.5 7.6

 1/40 1050

CFM 357 291 272 206 142

BHP 0.012 0.016 0.017 0.018 0.017

Sones 4.0 3.9 3.9 3.9 4.0

SQ-85-G 1/20 1300

CFM 442 391 377 331 298 260 185

BHP 0.024 0.028 0.028 0.032 0.033 0.034 0.033

Sones 5.5 5.3 5.3 5.3 5.3 5.4 5.4

SQ-85-D 1/12 1550

CFM 528 485 474 439 413 386 343 327 294 254

BHP 0.04 0.045 0.046 0.049 0.052 0.054 0.056 0.057 0.057 0.057

Sones 7.6 7.4 7.4 7.4 7.4 7.4 7.4 7.5 7.5 7.6

1

(25)



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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

 









0 0.125 0.2 0.25 0.3 0.375  0.5 0.6 0.625

 1/50 1050

CFM 500 369 271 188

BHP 0.016 0.02 0.021 0.02

Sones 4.0 3.9 4.0 4.1

SQ-90-G 1/25 1300

CFM 619 519 449 397 343 245 207

BHP 0.03 0.036 0.039 0.04 0.04 0.038 0.037

Sones 5.4 5.4 5.4 5.5 5.5 5.6 5.6

SQ-90-D 1/10 1550

CFM 738 654 602 564 522 457 435 334

BHP 0.051 0.059 0.062 0.064 0.067 0.068 0.068 0.067

Sones 7.6 7.5 7.5 7.4 7.4 7.4 7.4 7.4

 1/30 1050

CFM 623 475 365 274

BHP 0.028 0.031 0.031 0.03

Sones 4.9 4.5 4.4 4.5

SQ-95-G 1/15 1300

CFM 771 659 579 522 461 352 311

BHP 0.053 0.057 0.058 0.059 0.059 0.057 0.056

Sones 7.6 6.7 6.5 6.4 6.4 6.4 6.4

SQ-95-D 1/8 1550

CFM 919 829 765 720 677 603 579 461 324 276

BHP 0.09 0.094 0.097 0.097 0.1 0.1 0.1 0.099 0.094 0.091

Sones 9.6 9.3 8.9 8.7 8.4 8.1 8.0 7.6 7.2 7.1

SQ 90-95 - Direct Drive

Damper size = 12 x 12 (305 x 305)

Unit weight** = 41 (19)

Housing thickness = 20 ga

Outlet velocity = 1.021 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

16

(406)

15

(381)

*117⁄8

(302)

15

(381)

0 200 400 600 800 1000 1200 1400 1600

0

20

40

60

80

100

120

140

160

180

0 100 200 300 400 500 600 700 800 900 1000

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

SQ-95-D

SQ-95-G

SQ-95-E

SQ-90-E

SQ-90-G

SQ-90-D

RPM

Density 0.075 lb/ft3

1

(25)

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

15

SQ 100 - Direct Drive

0 500 1000 1500 2000 2500

0

50

100

150

200

250

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 200 400 600 800 1000 1200 1400 1600

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1725

1140

860

RPM

Density 0.075 lb/ft3

17

(432)

*137⁄8

(352)

17

(432)

21

(533)

Damper size = 14 x 14 (356 x 356)

Unit weight** = 56 (25)

Housing thickness = 20 ga

Outlet velocity = 0.748 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0 0.1 0.125 0.25 0.3 0.375 0.5 0.625 0.75 1

 1/8 860

CFM 725 637 611

BHP 0.027 0.03 0.03

Sones 4.7 3.8 3.7

SQ-100-B 1/6 1140

CFM 961 898 881 785 738 657

BHP 0.064 0.067 0.068 0.071 0.071 0.07

Sones 7.4 6.6 6.5 6.1 5.9 5.6

 1/4 1725

CFM 1454 1412 1402 1349 1326 1292 1227 1156 1077 830

BHP 0.22 0.23 0.23 0.23 0.24 0.24 0.24 0.25 0.25 0.22

Sones 13.1 12.6 12.4 11.9 11.7 11.5 11.1 10.7 10.4 9.6

1

(25)

16

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

0 500 1000 1500 2000 2500 3000

0

50

100

150

200

250

300

350

400

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 400 800 1200 1600 2000

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1725

1140

860

RPM

Density 0.075 lb/ft3

SQ 120 - Direct Drive

 









0 0.125 0.25 0.375 0.5 0.625 0.75 1 1.25 1.375

 1/8 860

CFM 971 843 704

BHP 0.051 0.055 0.059

Sones 4.4 4.1 3.3

SQ-120-B 1/6 1140

CFM 1287 1189 1094 992 873 692

BHP 0.12 0.12 0.13 0.14 0.14 0.13

Sones 7.4 7.2 7.0 6.3 5.9 5.8

 1/2 1725

CFM 1948 1883 1818 1754 1692 1628 1562 1416 1239 1128

BHP 0.41 0.42 0.42 0.44 0.45 0.46 0.46 0.48 0.48 0.47

Sones 14.7 14.1 13.8 13.6 13.5 13.4 13.2 12.6 11.9 11.7

Damper size = 16 x 16 (406 x 406)

Unit weight** = 67 (30)

Housing thickness = 20 ga

Outlet velocity = 0.571 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

21

(533)

19

(483)

*157⁄8

(403)

19

(483)

1

(25)

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

17

SQ 130 - Direct Drive

0 500 1000 1500 2000 2500 3000 3500 4000

0

50

100

150

200

250

300

350

400

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1725

1140

860

RPM

Density 0.075 lb/ft3

21

(533)

21

(533)

*177⁄8

(454)

21

(533)

Damper size = 18 x 18 (457 x 457)

Unit weight** = 67 (35)

Housing thickness = 20 ga

Outlet velocity = 0.451 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0 0.125 0.25 0.375 0.5 0.625 0.75 1 1.25 1.375

 1/8 860

CFM 1180 1048 890

BHP 0.067 0.075 0.078

Sones 6.2 5.2 4.5

SQ-130-B 1/4 1140

CFM 1564 1471 1366 1248 1104 865

BHP 0.16 0.17 0.18 0.18 0.18 0.17

Sones 9.4 8.3 7.4 6.8 6.5 6.4

 3/4 1725

CFM 2368 2307 2247 2174 2105 2038 1961 1791 1559 1409

BHP 0.54 0.56 0.57 0.59 0.6 0.62 0.62 0.63 0.61 0.59

Sones 17.4 17.6 17.1 17.1 16.6 16.4 15.9 15.7 15.6 15.6

1

(25)

18

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

SQ 140 - Direct Drive

 









0 0.25 0.375 0.5 0.625 0.75 1 1.375 1.5 1.75

 1/8 860

CFM 1637 1316 1033

BHP 0.12 0.13 0.13

Sones 7.0 6.2 5.9

 1/3 1140

CFM 2170 1942 1818 1666 1446 1121

BHP 0.27 0.29 0.3 0.3 0.3 0.27

Sones 10.8 10.1 10.0 9.8 9.6 9.4

 1 1725

CFM 3283 3139 3065 2985 2905 2825 2645 2268 2085 1624

BHP 0.93 0.97 0.98 1 1.01 1.03 1.03 1.03 1.01 0.93

Sones 20 19.3 19.0 18.7 18.6 18.4 18.2 17.2 16.7 15.9

0 1000 2000 3000 4000 5000

0

100

200

300

400

500

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500 3000 3500

0.0

0.3

0.6

0.9

1.2

1.5

1.8

2.1

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1725

1140

860

RPM

Density 0.075 lb/ft3

Damper size = 20 x 20 (508 x 508)

Unit weight** = 104 (47)

Housing thickness = 18 ga

Outlet velocity = 0.364 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

22

(559)

23

(584)

*197⁄8

(505)

23

(584)

1

(25)

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

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

19

SQ 160 - Direct Drive

 









0 0.25 0.5 0.75 1 1.25 1.5 1.75 1.875 2

 1/4 860

CFM 2506 2147 1605

BHP 0.2 0.23 0.24

Sones 8.8 7.2 6.5

SQ-160-B 1/2 1140

CFM 3322 3061 2773 2388 1808

BHP 0.47 0.51 0.54 0.56 0.51

Sones 14.0 12.8 11.9 11.4 10.8

 2 1725

CFM 5027 4856 4683 4504 4312 4094 3845 3575 3414 3236

BHP 1.64 1.69 1.74 1.8 1.85 1.89 1.93 1.95 1.94 1.91

Sones 26 25 24 24 24 24 24 24 24 24

Damper size = 23 x 23 (584 x 584)

Unit weight** = 160 (73)

Housing thickness = 18 ga

Outlet velocity = 0.275 x cfm

Dimensions shown in inches (millimeters) and weight is

shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

26

(660)

26

(660)

*227⁄8

(581)

26

(660)

0 2 4 6 8 10

0

100

200

300

400

500

600

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000 6000

0.0

0.4

0.8

1.2

1.6

2.0

2.4

2.8

Static Pressure in. wg

cfm

m3/hr X 1000

Static Pressure Pa

1725

1140

860

RPM

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

20

BSQ 70 - Belt Drive

 









0.125 0.25 0.5 0.625 0.75 1 1.25 1.5 1.75 2

 1/4

1050

CFM 184 129

BHP 0.039 0.037

Sones 8.0 7.5

1313

CFM 251 211 117

BHP 0.077 0.076 0.068

Sones 11.0 10.4 9.2

1445

CFM 284 249 169 122

BHP 0.103 0.102 0.097 0.09

Sones 12.8 12.3 10.7 10.3

1577

CFM 314 284 213 175 131

BHP 0.13 0.13 0.13 0.12 0.12

Sones 14.9 14.6 12.7 11.9 11.4

1709

CFM 345 318 254 220 184 97

BHP 0.17 0.17 0.17 0.16 0.16 0.14

Sones 16.1 15.9 14.5 13.9 13.3 12.4

1840

CFM 375 351 293 262 231 159

BHP 0.21 0.21 0.21 0.21 0.2 0.19

Sones 17.3 17.0 16.4 16.0 15.4 14.5

1972

CFM 405 384 331 302 273 212 142

BHP 0.26 0.26 0.26 0.25 0.25 0.24 0.22

Sones 19.2 19.1 18.6 18.2 17.9 17.7 16.5

BSQ-70-3 1/3

2072

CFM 428 408 360 332 305 249 184 103

BHP 0.3 0.3 0.3 0.3 0.29 0.29 0.27 0.24

Sones 20 20 19.9 19.5 19.1 18.5 18.2 16.8

2172

CFM 450 431 387 361 335 282 224 161

BHP 0.34 0.35 0.35 0.34 0.34 0.33 0.32 0.3

Sones 21 21 21 21 20 19.7 19.2 18.8

BSQ-70-5 1/2

2329

CFM 486 467 428 406 381 332 283 225 166

BHP 0.43 0.43 0.43 0.43 0.42 0.42 0.41 0.39 0.36

Sones 23 23 23 23 23 22 21 20 21

2486

CFM 521 504 468 447 426 380 334 287 232 176

BHP 0.52 0.52 0.52 0.52 0.52 0.51 0.5 0.49 0.47 0.44

Sones 25 25 25 25 25 24 23 22 22 23

21

(533)

15

(381)

117⁄8

(302)

15

(381)

1 (25)

*121⁄2

(318)

*14

(356)

*151⁄2

(394)

Damper size = 12 x 12 (305 x 305)

Unit weight** = 76 (34)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

MAX Bhp AT A GIVEN RPM = (rpm/3084)3

MAXIMUM RPM = 2486

TIP SPEED (ft/min) = rpm x 2.928

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 1.0212 x cfm

0 200 400 600 800 1000

0

200

400

600

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 100 200 300 400 500 600

0.0

0.5

1.0

1.5

2.0

2.5

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

RPM

HP

Density 0.075 lb/ft3

1/2 hp

1/3 hp

1/4 hp

2486

2150

1810

1470

1130

790

21

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 80 - Belt Drive

 









0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.5

 1/4

1050

CFM 372 298

BHP 0.049 0.049

Sones 8.0 7.6

1207

CFM 445 386 206

BHP 0.073 0.075 0.065

Sones 9.7 9.1 8.2

1520

CFM 585 542 442 301

BHP 0.15 0.15 0.15 0.14

Sones 13.9 13.5 11.8 10.8

1676

CFM 652 615 530 426 254

BHP 0.19 0.2 0.2 0.2 0.17

Sones 15.9 15.6 14.1 12.9 11.5

1833

CFM 720 687 613 524 424

BHP 0.25 0.26 0.26 0.26 0.25

Sones 17.2 16.9 16.3 15.3 14.3

BSQ-80-3 1/3

1926

CFM 760 728 660 579 486 346

BHP 0.29 0.3 0.3 0.3 0.3 0.27

Sones 18.4 18.3 17.8 17.1 16.9 13.9

2018

CFM 799 769 704 630 545 452 269

BHP 0.34 0.34 0.35 0.35 0.34 0.34 0.28

Sones 19.6 19.5 19.2 18.4 18.1 16.7 13.5

BSQ-80-5 1/2

2164

CFM 861 833 774 708 633 550 442

BHP 0.41 0.42 0.43 0.43 0.43 0.42 0.4

Sones 21 21 21 20 19.6 19.2 17.6

2310

CFM 924 897 842 784 716 643 563 445

BHP 0.5 0.51 0.52 0.52 0.52 0.52 0.51 0.48

Sones 23 23 22 23 21 21 20 19.9

BSQ-80-7 3/4

2478

CFM 995 969 919 865 807 743 671 597 486

BHP 0.62 0.63 0.63 0.64 0.65 0.65 0.64 0.63 0.59

Sones 25 25 24 25 24 23 22 22 23

2645

CFM 1065 1041 995 945 894 835 773 705 635 395

BHP 0.75 0.76 0.77 0.78 0.79 0.79 0.78 0.77 0.77 0.65

Sones 28 28 27 27 27 26 25 24 24 35

21

(533)

15

(381)

117⁄8

(302)

15

(381)

1 (25)

*121⁄2

(318)

*14

(356)

*151⁄2

(394)

Damper size = 12 x 12 (305 x 305)

Unit weight** = 79 (36)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

MAX Bhp AT A GIVEN RPM = (rpm/2866)3

MAXIMUM RPM = 2645

TIP SPEED (ft/min) = rpm x 2.928

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 1.0212 x cfm

0 500 1000 1500 2000

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 200 400 600 800 1000 1200

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

790

1160

1530

1900

2270

2645

3/4 hp

1/2 hp

1/3 hp

1/4 hp

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

22

BSQ 90 - Belt Drive

 









0.125 0.25 0.5 0.75 1 1.5 1.75 2 2.25 2.5

 1/4

1050

CFM 547 443

BHP 0.061 0.061

Sones 8.0 7.6

1211

CFM 655 574 333

BHP 0.092 0.095 0.084

Sones 9.8 9.1 8.3

1533

CFM 864 806 667 477

BHP 0.18 0.19 0.19 0.18

Sones 14.2 13.8 12.1 11.0

1694

CFM 965 914 798 654 437

BHP 0.25 0.25 0.26 0.25 0.22

Sones 16.0 15.8 14.4 13.1 12.3

BSQ-90-3 1/3

1780

CFM 1019 971 863 734 562

BHP 0.29 0.29 0.3 0.3 0.28

Sones 16.7 16.5 15.6 14.4 13.7

1866

CFM 1072 1028 926 808 657

BHP 0.33 0.33 0.35 0.35 0.33

Sones 17.5 17.3 16.9 15.9 15.4

BSQ-90-5 1/2 2136

CFM 1239 1202 1118 1024 917 638

BHP 0.49 0.5 0.51 0.52 0.52 0.47

Sones 21 21 21 19.9 19.2 18.4

BSQ-90-7 3/4

2291

CFM 1334 1300 1223 1138 1045 811 668

BHP 0.61 0.61 0.62 0.64 0.65 0.61 0.58

Sones 23 23 22 22 21 20 20

2445

CFM 1429 1396 1326 1249 1167 976 844 707

BHP 0.73 0.74 0.75 0.77 0.79 0.77 0.73 0.7

Sones 25 25 24 25 23 22 22 23

BSQ-90-10 1

2568

CFM 1504 1473 1407 1336 1258 1082 977 851 704

BHP 0.85 0.86 0.87 0.89 0.9 0.9 0.88 0.84 0.8

Sones 26 26 26 26 26 24 22 24 25

2691

CFM 1579 1549 1488 1420 1347 1186 1097 987 866 713

BHP 0.98 0.98 1 1.02 1.03 1.05 1.03 1 0.96 0.91

Sones 28 28 27 28 28 26 25 24 26 29

21

(533)

15

(381)

117⁄8

(302)

15

(381)

1 (25)

*121⁄2

(318)

*14

(356)

*151⁄2

(394)

Damper size = 12 x 12 (305 x 305)

Unit weight** = 84 (38)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

MAX Bhp AT A GIVEN RPM = (rpm/2649)3

MAXIMUM RPM = 2691

TIP SPEED (ft/min) = rpm x 2.928

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 1.0212 x cfm

0 500 1000 1500 2000 2500 3000

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 200 400 600 800 1000 1200 1400 1600 1800

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

2691

2310

1930

1550

1170

790

RPM

HP

Density 0.075 lb/ft3

23

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 100 - Belt Drive

 









0.125 0.25 0.5 0.625 0.75 1 1.25 1.5 1.75 2

 1/4

1050

CFM 774 671

BHP 0.072 0.073

Sones 7.9 7.6

1330

CFM 1024 953 770

BHP 0.14 0.15 0.15

Sones 11.3 10.6 9.4

1469

CFM 1145 1080 931 837

BHP 0.19 0.2 0.2 0.2

Sones 13.2 12.6 11.0 10.5

1609

CFM 1265 1207 1088 1003 917

BHP 0.25 0.25 0.26 0.26 0.26

Sones 15.4 15.0 13.4 12.4 11.8

BSQ-100-3 1/3 1772

CFM 1405 1352 1247 1187 1110 939

BHP 0.33 0.34 0.35 0.35 0.35 0.35

Sones 16.6 16.4 15.5 14.8 14.3 13.1

BSQ-100-5 1/2

1901

CFM 1515 1465 1366 1320 1255 1115

BHP 0.4 0.41 0.43 0.43 0.43 0.43

Sones 18.0 17.8 17.4 17.1 16.6 16.2

2029

CFM 1623 1577 1484 1439 1396 1262 1119

BHP 0.49 0.5 0.52 0.52 0.52 0.52 0.52

Sones 19.8 19.6 19.4 19.0 18.6 18.2 17.2

BSQ-100-7 3/4

2176

CFM 1747 1704 1617 1574 1533 1428 1305 1163

BHP 0.6 0.61 0.63 0.64 0.65 0.65 0.65 0.65

Sones 21 21 21 21 20 19.8 19.3 18.5

2323

CFM 1871 1830 1749 1708 1668 1591 1472 1358 1197

BHP 0.73 0.74 0.76 0.78 0.79 0.79 0.79 0.79 0.78

Sones 23 23 23 23 23 22 21 20 21

BSQ-100-10 1

2440

CFM 1969 1930 1853 1815 1776 1703 1605 1494 1377 1184

BHP 0.84 0.86 0.88 0.89 0.9 0.91 0.91 0.91 0.91 0.88

Sones 25 25 24 24 25 23 23 22 22 23

2556

CFM 2066 2029 1956 1919 1882 1810 1734 1626 1522 1402

BHP 0.97 0.98 1.01 1.02 1.03 1.05 1.05 1.05 1.05 1.05

Sones 26 26 25 26 26 25 25 24 22 24

21

(533)

17

(432)

137⁄8

(352)

17

(432)

1 (25)

*121⁄2

(318)

*14

(356)

*151⁄2

(394)

Damper size = 14 x 14 (357 x 357)

Unit weight** = 83 (38)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

MAX Bhp AT A GIVEN RPM = (rpm/2517)3

MAXIMUM RPM = 2556

TIP SPEED (ft/min) = rpm x 2.928

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 0.7617 x cfm

0 1000 2000 3000 4000

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

2556

2210

1855

1500

1145

790

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.



BSQ 120 - Belt Drive

 









0.125 0.375 0.75 1 1.25 1.5 2 2.25 2.5 2.75

 1/4

1000

CFM 1026 783

BHP 0.096 0.102

Sones 7.7 7.5

1367

CFM 1471 1311 1020

BHP 0.24 0.25 0.26

Sones 10.9 10.5 10.0

BSQ-120-3 1/3

1437

CFM 1555 1403 1145

BHP 0.28 0.29 0.3

Sones 11.7 11.3 10.4

1506

CFM 1636 1492 1252 1027

BHP 0.32 0.33 0.35 0.34

Sones 12.5 12.1 11.1 10.2

BSQ-120-5 1/2

1615

CFM 1764 1631 1418 1245

BHP 0.39 0.41 0.43 0.43

Sones 13.8 13.6 12.4 11.8

1724

CFM 1892 1767 1571 1423 1241

BHP 0.47 0.49 0.52 0.52 0.52

Sones 15.2 15.3 13.8 13.6 12.4

BSQ-120-7 3/4 1974

CFM 2183 2075 1908 1791 1663 1518

BHP 0.71 0.73 0.76 0.78 0.78 0.78

Sones 19.0 18.9 17.6 16.9 16.4 15.7

BSQ-120-10 1

2073

CFM 2298 2195 2037 1928 1813 1683 1293

BHP 0.82 0.84 0.88 0.89 0.91 0.91 0.86

Sones 21 21 19.0 18.6 17.9 17.5 15.2

2172

CFM 2413 2314 2164 2062 1953 1836 1553

BHP 0.94 0.97 1 1.02 1.04 1.05 1.03

Sones 23 23 21 21 19.7 19.0 17.5

BSQ-120-15 11⁄2

2329

CFM 2594 2503 2363 2268 2171 2069 1841 1695 1477

BHP 1.16 1.19 1.22 1.25 1.27 1.28 1.29 1.28 1.23

Sones 26 26 24 23 23 22 21 19.9 18.8

2490

CFM 2779 2694 2563 2475 2387 2294 2093 1984 1852 1682

BHP 1.41 1.44 1.49 1.51 1.54 1.55 1.58 1.58 1.57 1.53

Sones 31 30 27 26 27 26 24 23 23 22

21

(533)

19

(483)

157⁄8

(403)

19

(483)

1 (25)

*121⁄2

(318)

*16

(406)

*177⁄8

(454)

Damper size = 16 x 16 (406 x 406)

Unit weight** = 97 (44)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

MAX Bhp AT A GIVEN RPM = (rpm/2144)3

MAXIMUM RPM = 2490

TIP SPEED (ft/min) = rpm x 3.436

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 0.5805 x cfm

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

0

100

200

300

400

500

600

700

800

900

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

YS

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500 3000

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

2490

2150

1810

1470

1130

790

RPM

HP

Density 0.075 lb/ft3

25

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 130 - Belt Drive

21

(533)

21

(533)

177⁄8

(454)

21

(533)

1 (25)

*121⁄2

(318)

*16

(406)

*177⁄8

(454)

Damper size = 18 x 18 (457 x 457)

Unit weight** = 97 (44)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

0 1000 2000 3000 4000 5000

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500 3000 3500

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

2355

2050

1735

1420

1105

790

RPM

HP

Density 0.075 lb/ft3

 









0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.5

 1/4

900

CFM 1084 911

BHP 0.086 0.087

Sones 7.7 7.7

1031

CFM 1275 1151 709

BHP 0.13 0.13 0.12

Sones 8.8 8.7 8.5

1293

CFM 1652 1563 1328 958

BHP 0.24 0.25 0.26 0.24

Sones 11.8 11.6 11.2 10.6

BSQ-130-3 1/3 1424

CFM 1838 1754 1568 1299

BHP 0.32 0.33 0.35 0.34

Sones 13.6 13.3 12.8 12.4

BSQ-130-5 1/2

1527

CFM 1984 1902 1743 1515 1204

BHP 0.4 0.41 0.43 0.42 0.4

Sones 14.8 14.5 13.9 13.3 12.6

1630

CFM 2126 2050 1908 1714 1468 1121

BHP 0.48 0.49 0.52 0.52 0.51 0.47

Sones 15.9 15.6 15.0 14.3 13.6 12.7

BSQ-130-7 3/4 1866

CFM 2448 2389 2266 2128 1949 1740 1462

BHP 0.72 0.73 0.76 0.78 0.78 0.76 0.73

Sones 19.9 19.5 18.8 18.2 17.2 15.9 14.7

BSQ-130-10 1

1960

CFM 2576 2523 2403 2279 2120 1934 1714 1419

BHP 0.83 0.84 0.87 0.9 0.91 0.89 0.87 0.83

Sones 21 21 19.9 19.3 18.4 17.3 16.7 16.2

2053

CFM 2702 2655 2537 2426 2286 2117 1926 1686 1319

BHP 0.95 0.96 1 1.03 1.05 1.03 1.02 0.99 0.89

Sones 23 22 21 20 19.8 18.7 18.0 17.9 18.5

BSQ-130-15 11⁄2

2202

CFM 2905 2864 2751 2653 2533 2390 2227 2045 1823

HP 1.17 1.18 1.22 1.25 1.28 1.28 1.27 1.26 1.22

Sones 26 25 24 22 22 21 20 19.9 21

2355

CFM 3112 3074 2971 2877 2777 2659 2514 2359 2189 1732

BHP 1.43 1.44 1.48 1.52 1.55 1.58 1.57 1.55 1.54 1.44

Sones 30 28 28 25 24 23 22 22 22 27

MAX Bhp AT A GIVEN RPM = (rpm/2022)3

MAXIMUM RPM = 2355

TIP SPEED (ft/min) = rpm x 3.435

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 0.4571 x cfm

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

26

BSQ 130HP - Belt Drive

21

(533)

21

(533)

177⁄8

(454)

21

(533)

1 (25)

*121⁄2

(318)

*16

(406)

*177⁄8

(454)

Damper size = 18 x 18 (457 x 457)

Unit weight** = 97 (44)

Housing thickness = 20 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 1.75 2 2.5 3 3.5

 1/4

1300

CFM 784 549

BHP 0.16 0.15

Sones 11.2 10.5

1520

CFM 1014 884 670

BHP 0.25 0.26 0.25

Sones 11.4 11.2 10.8

 1/3 1674

CFM 1161 1048 930 700

BHP 0.33 0.34 0.35 0.33

Sones 12.4 12.5 12.0 11.5

 1/2

1795

CFM 1273 1176 1063 930 691

BHP 0.4 0.41 0.42 0.42 0.4

Sones 13.3 13.4 13.1 12.6 11.7

1916

CFM 1380 1294 1192 1091 925 680

BHP 0.48 0.5 0.5 0.52 0.51 0.48

Sones 14.6 14.3 14.2 13.9 13.0 11.9

 3/4

2055

CFM 1501 1426 1339 1239 1146 971 756

BHP 0.59 0.6 0.62 0.62 0.65 0.62 0.59

Sones 16.9 15.9 15.4 15.3 14.9 13.8 12.6

2194

CFM 1621 1555 1477 1388 1297 1203 1033

BHP 0.71 0.73 0.75 0.76 0.77 0.78 0.76

Sones 19.2 18.4 17.1 17.0 17.2 16.5 15.1

 1

2304

CFM 1715 1653 1582 1504 1414 1331 1229 865

BHP 0.81 0.84 0.86 0.87 0.87 0.9 0.9 0.84

Sones 21 20 19.0 18.2 18.6 18.4 17.6 14.5

2414

CFM 1808 1749 1685 1614 1532 1448 1369 1080

BHP 0.93 0.95 0.98 1 1.01 1.01 1.04 1

Sones 22 22 21 19.0 19.5 19.7 19.2 16.8

 11⁄2

2589

CFM 1956 1901 1846 1781 1714 1635 1557 1392 1076

BHP 1.14 1.17 1.19 1.22 1.24 1.24 1.25 1.28 1.21

Sones 24 25 24 22 21 22 22 20 17.7

2770

CFM 2108 2056 2005 1950 1888 1825 1750 1608 1421 1110

BHP 1.39 1.42 1.44 1.47 1.5 1.52 1.52 1.56 1.54 1.48

Sones 27 28 27 26 25 24 24 23 22 19.2

MAX Bhp AT A GIVEN RPM = (rpm/2377)3

MAXIMUM RPM = 2770

TIP SPEED (ft/min) = rpm x 3.435

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 0.4571 x cfm

0 500 1000 1500 2000 2500 3000 3500 4000

0

100

200

300

400

500

600

700

800

900

1000

1100

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

2770

2390

1990

1590

1190

790

RPM

HP

Density 0.075 lb/ft3

27

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 140 - Belt Drive

22

(559)

23

(584)

197⁄8

(505)

23

(584)

1 (25)

*121⁄2

(318)

*16

(406)

*177⁄8

(454)

Damper size = 20 x 20 (508 x 508)

Unit weight** = 111 (50)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

0 1000 2000 3000 4000 5000 6000 7000

0

100

200

300

400

500

600

700

800

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500 3000 3500 4000 4500

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

2153

1890

1615

1340

1065

790

RPM

HP

Density 0.075 lb/ft3

 









0.125 0.25 0.5 0.75 1 1.5 1.75 2 2.5 2.75

 1/4

800

CFM 1362 1185

BHP 0.1 0.11

Sones 6.3 6.7

1076

CFM 1927 1810 1538

BHP 0.24 0.25 0.26

Sones 10.7 10.7 10.2

 1/3 1185

CFM 2142 2039 1807 1463

BHP 0.32 0.33 0.35 0.34

Sones 12.1 11.9 12.0 10.6

 1/2

1271

CFM 2311 2217 2006 1741 1199

BHP 0.39 0.41 0.43 0.43 0.39

Sones 13.3 13.0 13.1 13.0 12.7

1356

CFM 2476 2392 2197 1979 1636

BHP 0.48 0.49 0.51 0.52 0.51

Sones 14.2 13.9 13.8 13.8 13.8

 3/4 1553

CFM 2858 2787 2626 2449 2253 1447

BHP 0.71 0.73 0.75 0.78 0.79 0.7

Sones 16.2 16.0 16.0 15.6 15.3 13.9

 1

1631

CFM 3008 2941 2790 2625 2446 1865

BHP 0.82 0.84 0.86 0.89 0.91 0.87

Sones 17.1 16.9 16.9 16.6 16.1 14.8

1709

CFM 3159 3094 2953 2798 2635 2177 1752

BHP 0.95 0.96 0.99 1.02 1.05 1.03 0.97

Sones 18.2 18.0 17.9 17.7 17.2 16.1 15.1

 11⁄21956

CFM 3633 3576 3461 3330 3193 2894 2705 2457

BHP 1.41 1.43 1.47 1.49 1.53 1.57 1.57 1.55

Sones 24 23 24 24 23 22 21 20

 2

2055

CFM 3822 3769 3662 3537 3410 3136 2982 2777 2168

BHP 1.63 1.66 1.7 1.73 1.75 1.82 1.82 1.81 1.7

Sones 27 26 28 27 26 25 24 23 21

2153

CFM 4009 3958 3856 3741 3622 3365 3225 3078 2627 2260

BHP 1.88 1.9 1.95 1.98 2 2.08 2.1 2.1 2.05 1.95

Sones 30 30 31 31 30 28 28 27 25 23

MAX Bhp AT A GIVEN RPM = (rpm/1682)3

MAXIMUM RPM = 2153

TIP SPEED (ft/min) = rpm x 3.812

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 0.3692 x cfm

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

28

BSQ 140HP - Belt Drive

22

(559)

23

(584)

197⁄8

(505)

23

(584)

1 (25)

*121⁄2

(318)

*16

(406)

*177⁄8

(454)

Damper size = 20 x 20 (508 x 508)

Unit weight** = 111 (50)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 1.75 2 2.5 3 3.5

 1/3

1340

CFM 1285 1082

BHP 0.27 0.27

Sones 11.4 11.2

1453

CFM 1449 1281 1058

BHP 0.35 0.35 0.34

Sones 13.3 12.8 12.4

 1/2

1559

CFM 1601 1452 1270 948

BHP 0.42 0.43 0.43 0.39

Sones 15.1 14.6 14.2 13.4

1664

CFM 1742 1607 1456 1264 800

BHP 0.51 0.52 0.52 0.52 0.43

Sones 16.5 15.9 15.5 15.0 13.8

 3/4

1785

CFM 1902 1782 1652 1495 1307

BHP 0.63 0.64 0.65 0.65 0.64

Sones 17.9 17.3 16.7 16.1 15.5

1905

CFM 2057 1954 1832 1701 1548 1363

BHP 0.76 0.77 0.79 0.79 0.79 0.77

Sones 19.7 19.1 18.4 17.7 17.1 16.7

 1 2096

CFM 2298 2211 2108 1998 1878 1741 1581

BHP 1.01 1.02 1.03 1.05 1.05 1.05 1.04

Sones 24 23 22 21 20 20 19.7

 11⁄2

2197

CFM 2425 2344 2253 2145 2041 1918 1783 1299

BHP 1.16 1.18 1.18 1.21 1.21 1.21 1.21 1.08

Sones 26 25 24 23 22 22 22 22

2399

CFM 2676 2603 2525 2437 2339 2244 2134 1882 1381

BHP 1.5 1.52 1.53 1.54 1.57 1.57 1.57 1.56 1.39

Sones 30 29 28 27 26 25 24 23 23

 2

2520

CFM 2825 2755 2684 2606 2515 2423 2330 2107 1839

BHP 1.73 1.76 1.78 1.78 1.81 1.82 1.82 1.82 1.79

Sones 32 31 30 30 28 27 26 25 24

2641

CFM 2973 2907 2841 2768 2688 2599 2512 2319 2088 1759

BHP 1.98 2.01 2.04 2.05 2.06 2.09 2.1 2.1 2.09 2

Sones 33 33 33 32 31 30 29 27 26 24

MAX Bhp AT A GIVEN RPM = (rpm/2064)3

MAXIMUM RPM = 2641

TIP SPEED (ft/min) = rpm x 3.812

MAX NEMA MOTOR FRAME SIZE = 145T

OUTLET VELOCITY (ft/min) = 0.3692 x cfm

0 1000 2000 3000 4000 5000

0

200

400

600

800

1000

1200

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 500 1000 1500 2000 2500 3000 3500

0

1

2

3

4

5

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

2641

2270

1900

1530

1160

790

RPM

HP

Density 0.075 lb/ft3

29

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 160 - Belt Drive

26

(660)

26

(660)

227⁄8

(581)

26

(660)

1 (25)

*133⁄8

(340)

*17

(432)

*201⁄2

(521)

Damper size = 23 x 23 (584 x 584)

Unit weight** = 208 (94)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.5 0.75 1 1.5 1.75 2 2.25 2.5 3

 1/4

650

CFM 1671

BHP 0.1

Sones 6.6

873

CFM 2373 1759

BHP 0.23 0.26

Sones 8.8 8.2

BSQ-160-3 1/3 962

CFM 2643 2150

BHP 0.31 0.35

Sones 9.9 9.3

BSQ-160-5 1/2 1101

CFM 3061 2665 2301

BHP 0.46 0.51 0.52

Sones 12.4 11.4 11.2

BSQ-160-7 3/4 1261

CFM 3538 3212 2946 2611

BHP 0.68 0.74 0.78 0.78

Sones 15.5 14.6 14.4 13.2

BSQ-160-10 1 1387

CFM 3911 3628 3402 3146 2311

BHP 0.9 0.97 1.01 1.04 0.96

Sones 18.0 17.2 16.9 16.1 13.1

BSQ-160-15 11⁄2

1488

CFM 4209 3949 3745 3519 2921 2420

BHP 1.1 1.18 1.23 1.27 1.27 1.17

Sones 19.9 19.0 18.9 18.4 15.9 14.5

1588

CFM 4503 4259 4079 3880 3389 3055 2566

BHP 1.33 1.42 1.47 1.52 1.56 1.53 1.42

Sones 22 21 22 21 18.9 17.5 16.1

BSQ-160-20 2 1748

CFM 4973 4751 4603 4425 4037 3802 3528 3185

BHP 1.77 1.88 1.92 1.98 2.08 2.09 2.07 2.01

Sones 28 26 27 27 24 23 22 19.9

BSQ-160-30 3

1875

CFM 5345 5138 5000 4847 4501 4312 4091 3844 3530

BHP 2.18 2.3 2.35 2.41 2.53 2.57 2.58 2.56 2.5

Sones 33 31 31 32 30 29 27 25 23

2001

CFM 5713 5519 5390 5260 4946 4774 4596 4392 4160 3566

BHP 2.64 2.77 2.84 2.89 3.03 3.08 3.12 3.14 3.12 2.99

Sones 40 36 36 38 38 36 34 31 29 26

MAX Bhp AT A GIVEN RPM = (rpm/1366)3

MAXIMUM RPM = 2001

TIP SPEED (ft/min) = rpm x 4.384

MAX NEMA MOTOR FRAME SIZE = 184T

OUTLET VELOCITY (ft/min) = 0.2782 x cfm

0 1 2 3 4 5 6 7 8 9 10

0

100

200

300

400

500

600

700

800

900

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000 6000

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Static Pressure in. wg

cfm

m3/hr X 1000

Static Pressure Pa

2001

1710

1430

1150

870

590

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

1/4 hp

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

30

BSQ 160HP - Belt Drive

26

(660)

26

(660)

227⁄8

(581)

26

(660)

1 (25)

*133⁄8

(340)

*17

(432)

*201⁄2

(521)

Damper size = 23 x 23 (584 x 584)

Unit weight** = 208 (94)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 2 2.5 3 3.5 

 1/3

1050

CFM 1669 1290

BHP 0.29 0.28

Sones 7.8 7.2

1116

CFM 1844 1533

BHP 0.35 0.35

Sones 8.6 8.0

 1/2 1277

CFM 2237 2020 1731 1305

BHP 0.5 0.52 0.52 0.49

Sones 10.8 10.1 9.6 8.9

 3/4 1462

CFM 2664 2497 2299 2050 1720

BHP 0.74 0.77 0.79 0.78 0.76

Sones 14.1 13.4 12.9 12.7 12.6

 1 1609

CFM 2986 2845 2688 2497 2269 1601

BHP 0.97 1 1.03 1.05 1.04 0.97

Sones 17.8 17.3 16.7 16.3 16.4 16.9

 11⁄2

1726

CFM 3239 3116 2974 2814 2630 2157

BHP 1.18 1.22 1.25 1.28 1.29 1.26

Sones 22 21 21 19.8 19.8 21

1842

CFM 3488 3377 3248 3115 2954 2570 2013

BHP 1.42 1.47 1.51 1.54 1.56 1.56 1.49

Sones 25 24 24 23 22 23 25

 2

1935

CFM 3686 3580 3464 3338 3200 2859 2435

BHP 1.63 1.68 1.73 1.77 1.8 1.82 1.79

Sones 27 25 25 25 24 24 25

2027

CFM 3881 3780 3676 3555 3434 3135 2763 2248

BHP 1.87 1.92 1.97 2.01 2.05 2.09 2.07 1.99

Sones 28 28 25 27 26 26 27 28

 3

2174

CFM 4191 4097 4002 3897 3785 3536 3230 2866 2357

BHP 2.29 2.34 2.4 2.45 2.49 2.56 2.58 2.55 2.44

Sones 32 31 28 28 29 29 29 30 31

2321

CFM 4499 4411 4322 4234 4129 3918 3660 3351 3001 2505

BHP 2.77 2.83 2.89 2.95 3 3.09 3.14 3.13 3.09 2.97

Sones 36 34 34 28 31 32 33 33 33 34

MAX Bhp AT A GIVEN RPM = (rpm/1584)3

MAXIMUM RPM = 2321

TIP SPEED (ft/min) = rpm x 4.384

MAX NEMA MOTOR FRAME SIZE = 184T

OUTLET VELOCITY (ft/min) = 0.2782 x cfm

0 2000 4000 6000 8000

0

200

400

600

800

1000

1200

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000

0

1

2

3

4

5

Static Pressure in. wg

cfm

m3/hr

Static Pressure Pa

2321

1990

1665

1340

1015

690

3 hp

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

RPM

HP

Density 0.075 lb/ft3

31

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 180 - Belt Drive

28

(711)

28

(711)

237⁄8

(606)

28

(711)

11⁄2 (38)

*133⁄4

(349)

*18

(457)

*243⁄8

(619)

Damper size = 24 x 24 (610 x 610)

Unit weight** = 245 (111)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.5

BSQ-180-3 1/3

700

CFM 2649 2387

BHP 0.23 0.24

Sones 10.0 9.6

791

CFM 3051 2845 2217

BHP 0.32 0.34 0.35

Sones 10.6 10.9 9.6

BSQ-180-5 1/2 905

CFM 3546 3366 2928 2175

BHP 0.48 0.49 0.52 0.49

Sones 12.2 12.1 11.6 10.8

BSQ-180-7 3/4 1037

CFM 4109 3955 3616 3179 2432

BHP 0.71 0.73 0.77 0.79 0.73

Sones 14.5 14.2 13.5 13.4 12.8

BSQ-180-10 1 1141

CFM 4549 4412 4127 3760 3290 2523

BHP 0.94 0.96 1.01 1.04 1.04 0.96

Sones 16.5 16.1 15.4 15.0 14.9 13.8

BSQ-180-15 11⁄2

1224

CFM 4898 4774 4507 4194 3836 3300 2331

BHP 1.15 1.18 1.23 1.28 1.29 1.27 1.08

Sones 18.4 17.7 17.1 16.5 16.5 15.8 14.4

1306

CFM 5242 5128 4878 4610 4281 3884 3332

BHP 1.4 1.43 1.48 1.53 1.56 1.57 1.5

Sones 20 19.5 18.8 18.3 17.8 17.5 16.8

BSQ-180-20 2

1372

CFM 5519 5410 5174 4937 4630 4308 3854 3218

BHP 1.62 1.65 1.71 1.75 1.81 1.82 1.81 1.7

Sones 22 21 20 19.8 19.0 18.7 18.3 17.5

1437

CFM 5790 5686 5463 5236 4964 4662 4298 3814 3106

BHP 1.86 1.89 1.95 2 2.06 2.09 2.09 2.04 1.89

Sones 23 22 22 21 21 19.7 19.6 19.1 18.2

BSQ-180-30 3

1541

CFM 6224 6127 5922 5710 5488 5213 4927 4567 4116

BHP 2.29 2.32 2.38 2.45 2.5 2.56 2.58 2.57 2.52

Sones 26 25 25 24 24 22 22 21 21

1645

CFM 6656 6566 6377 6179 5981 5744 5485 5216 4866 3898

BHP 2.78 2.81 2.88 2.95 3.01 3.07 3.12 3.14 3.13 2.94

Sones 29 28 28 27 27 26 24 24 24 23

MAX Bhp AT A GIVEN RPM = (rpm/1125)3

MAXIMUM RPM = 1645

TIP SPEED (ft/min) = rpm x 4.843

MAX NEMA MOTOR FRAME SIZE = 184T

OUTLET VELOCITY (ft/min) = 0.2553 x cfm

0 2 4 6 8 10

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000 6000 7000

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm

m3/hr X 1000

Static Pressure Pa

3 hp

1645

1430

1220

1010

800

590

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

32

BSQ 180HP - Belt Drive

28

(711)

28

(711)

237⁄8

(606)

28

(711)

11⁄2 (38)

*133⁄4

(349)

*18

(457)

*243⁄8

(619)

Damper size = 24 x 24 (610 x 610)

Unit weight** = 245 (111)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 1.75 2 2.5 3 3.5

 1/2

1000

CFM 2352 2018

BHP 0.44 0.45

Sones 10.9 10.0

1083

CFM 2636 2364 1984

BHP 0.55 0.57 0.56

Sones 12.1 11.2 10.5

 3/4

1166

CFM 2907 2672 2379 1951

BHP 0.67 0.7 0.71 0.69

Sones 13.4 12.6 11.7 10.9

1249

CFM 3169 2964 2724 2406 1945

BHP 0.81 0.85 0.87 0.87 0.82

Sones 14.7 14.1 13.2 12.4 11.4

 1 1332

CFM 3428 3247 3032 2782 2458 1513

BHP 0.98 1.02 1.05 1.06 1.05 0.83

Sones 16.3 15.7 14.8 14.0 13.1 11.0

 11⁄2

1415

CFM 3681 3518 3328 3116 2857 2537

BHP 1.15 1.2 1.24 1.26 1.27 1.26

Sones 18.0 17.4 16.6 15.6 14.8 14.0

1498

CFM 3931 3782 3614 3423 3212 2944 2622

BHP 1.35 1.41 1.45 1.49 1.51 1.5 1.48

Sones 19.9 19.1 18.6 17.6 16.8 15.9 15.0

 2

1581

CFM 4180 4043 3893 3718 3528 3312 3049

BHP 1.57 1.64 1.69 1.73 1.76 1.77 1.77

Sones 22 21 20 19.7 18.9 18.2 17.3

1664

CFM 4425 4298 4158 4003 3833 3648 3429 2859

BHP 1.81 1.89 1.95 1.99 2.03 2.06 2.07 2.01

Sones 24 23 23 22 21 21 19.7 17.9

 3

1747

CFM 4669 4550 4421 4285 4125 3956 3780 3308 2100

BHP 2.08 2.16 2.23 2.29 2.33 2.36 2.39 2.38 1.94

Sones 27 26 25 24 24 23 23 21 16.9

1913

CFM 5155 5050 4938 4816 4691 4545 4396 4058 3620 3006

BHP 2.7 2.78 2.88 2.95 3 3.05 3.09 3.14 3.12 2.96

Sones 33 32 31 30 30 29 29 28 26 23

MAX Bhp AT A GIVEN RPM = (rpm/1306)3

MAXIMUM RPM = 1913

TIP SPEED (ft/min) = rpm x 4.843

MAX NEMA MOTOR FRAME SIZE = 184T

OUTLET VELOCITY (ft/min) = 0.2553 x cfm

0 1 2 3 4 5 6 7 8 9 10

0

100

200

300

400

500

600

700

800

900

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000 6000

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Static Pressure in. wg

cfm

m3/hr X 1000

Static Pressure Pa

3 hp

1913

1650

1385

1120

855

590

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

RPM

HP

Density 0.075 lb/ft3

33

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 200 - Belt Drive

32

(813)

32

(813)

277⁄8

(708)

32

(813)

11⁄2 (38)

*16

(406)

*20

(508)

*28

(711)

Damper size = 28 x 28 (711 x 711)

Unit weight** = 314 (142)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.25 0.5 0.75 0.875 1 1.25 1.5 1.75 2

BSQ-200-3 1/3

600

CFM 2960 2616

BHP 0.25 0.26

Sones 11.1 10.6

660

CFM 3315 3018 2042

BHP 0.33 0.34 0.33

Sones 11.7 11.2 10.5

BSQ-200-5 1/2 756

CFM 3867 3624 3036

BHP 0.49 0.5 0.52

Sones 12.7 12.0 11.7

BSQ-200-7 3/4

811

CFM 4179 3959 3442 2563

BHP 0.6 0.62 0.64 0.62

Sones 13.4 12.8 12.3 13.0

865

CFM 4484 4285 3812 3239 2516

BHP 0.73 0.75 0.77 0.79 0.72

Sones 14.1 13.7 13.1 13.0 13.9

BSQ-200-10 1 952

CFM 4972 4796 4391 3916 3646 3203

BHP 0.96 0.99 1.01 1.04 1.05 1.03

Sones 15.7 15.5 15.1 14.9 14.5 14.4

BSQ-200-15 11⁄21090

CFM 5741 5587 5253 4874 4672 4452 3878

BHP 1.43 1.47 1.51 1.53 1.55 1.56 1.56

Sones 19.1 18.9 18.7 18.5 18.6 18.7 17.3

BSQ-200-20 2

1145

CFM 6046 5899 5588 5240 5047 4855 4413 3580

BHP 1.66 1.69 1.74 1.77 1.79 1.81 1.82 1.73

Sones 21 20 20 20 20 20 19.2 18.6

1200

CFM 6350 6210 5920 5597 5416 5233 4836 4316

BHP 1.9 1.94 2 2.02 2.04 2.06 2.09 2.08

Sones 22 22 21 21 21 21 21 19.8

BSQ-200-30 3

1287

CFM 6830 6699 6439 6138 5988 5818 5475 5088 4557

BHP 2.34 2.38 2.46 2.49 2.5 2.52 2.56 2.58 2.56

Sones 25 24 24 24 23 23 23 23 22

1375

CFM 7314 7192 6948 6677 6537 6396 6076 5753 5379 4862

BHP 2.85 2.89 2.98 3.02 3.03 3.05 3.09 3.14 3.15 3.13

Sones 27 27 26 26 26 26 25 25 25 24

MAX Bhp AT A GIVEN RPM = (rpm/937)3

MAXIMUM RPM = 1375

TIP SPEED (ft/min) = rpm x 5.595

MAX NEMA MOTOR FRAME SIZE = 184T

OUTLET VELOCITY (ft/min) = 0.1870 x cfm

0 2 4 6 8 10 12

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000 6000 7000 8000

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm

m3/hr X 1000

Static Pressure Pa

1375

1190

990

790

590

390

3 hp

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1/3 hp

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.



BSQ 200HP - Belt Drive

32

(813)

32

(813)

277⁄8

(708)

32

(813)

11⁄2 (38)

*16

(406)

*20

(508)

*28

(711)

Damper size = 28 x 28 (711 x 711)

Unit weight** = 314 (142)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 3

 1/2

850

CFM 2580 2037

BHP 0.47 0.47

Sones 12.3 11.6

880

CFM 2724 2258

BHP 0.51 0.52

Sones 12.8 12.3

 3/4

945

CFM 3032 2656 1943

BHP 0.63 0.65 0.61

Sones 14.2 14.1 12.4

1009

CFM 3327 3003 2556

BHP 0.76 0.78 0.78

Sones 15.6 15.9 14.7

 1 1111

CFM 3787 3495 3179 2732

BHP 1 1.03 1.05 1.04

Sones 16.9 17.4 16.9 15.3

 11⁄2

1191

CFM 4129 3870 3594 3263 2760

BHP 1.22 1.26 1.28 1.29 1.27

Sones 17.9 18.0 18.9 17.2 15.7

1271

CFM 4466 4235 3979 3716 3379 2808

BHP 1.47 1.51 1.55 1.57 1.57 1.52

Sones 18.8 18.9 21 19.8 17.5 16.2

 2

1335

CFM 4733 4523 4282 4035 3748 3382 2732

BHP 1.69 1.74 1.78 1.81 1.82 1.81 1.72

Sones 19.7 19.9 21 22 19.6 17.7 16.5

1399

CFM 4998 4803 4578 4344 4108 3802 3409 2702

BHP 1.93 1.99 2.03 2.07 2.09 2.09 2.08 1.95

Sones 21 21 21 24 22 19.5 18.1 17.0

 3

1467

CFM 5277 5092 4888 4667 4442 4190 3898 3473 2724

BHP 2.22 2.28 2.33 2.37 2.4 2.42 2.42 2.39 2.22

Sones 23 22 22 24 25 22 19.6 18.7 17.6

1602

CFM 5823 5659 5489 5291 5089 4883 4669 4401 4089 2894

BHP 2.86 2.93 3 3.04 3.08 3.12 3.15 3.15 3.14 2.86

Sones 26 26 25 25 27 27 25 23 22 20

MAX Bhp AT A GIVEN RPM = (rpm/1093)3

MAXIMUM RPM = 1602

TIP SPEED (ft/min) = rpm x 5.595

MAX NEMA MOTOR FRAME SIZE = 184T

OUTLET VELOCITY (ft/min) = 0.1870 x cfm

0 2 4 6 8 10

0

100

200

300

400

500

600

700

800

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 1000 2000 3000 4000 5000 6000 7000

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Static Pressure in. wg

cfm

m3/hr X 1000

Static Pressure Pa

3 hp

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1602

1350

1110

870

630

390

RPM

HP

Density 0.075 lb/ft3

35

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 240 - Belt Drive

34

(864)

39

(991)

347⁄8

(886)

39

(991)

11⁄2 (38)

*19

(483)

*22

(559)

*327⁄8

(835)

Damper size = 35 x 35 (889 x 889)

Unit weight** = 415 (188)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.5

 1/2

500

CFM 4518 4001

BHP 0.33 0.35

Sones 10.7 10.2

569

CFM 5269 4833 3685

BHP 0.48 0.51 0.51

Sones 12.3 11.8 10.8

 3/4 651

CFM 6132 5768 4946

BHP 0.7 0.74 0.78

Sones 14.3 13.9 12.9

 1

684

CFM 6475 6135 5368 4273

BHP 0.81 0.85 0.9 0.89

Sones 15.2 14.9 13.8 12.6

717

CFM 6816 6498 5782 4884

BHP 0.93 0.97 1.03 1.03

Sones 16.2 15.9 14.9 13.6

 11⁄2826

CFM 7935 7680 7086 6425 5604

BHP 1.41 1.45 1.54 1.59 1.58

Sones 19.5 19.5 18.7 17.4 16.2

 2 903

CFM 8720 8488 7960 7384 6756 5889

BHP 1.83 1.88 1.97 2.05 2.09 2.05

Sones 22 22 22 20 18.9 17.9

 3

969

CFM 9390 9174 8695 8176 7612 6962 6075

BHP 2.25 2.31 2.41 2.5 2.56 2.57 2.52

Sones 25 24 24 23 21 20 19.4

1034

CFM 10048 9845 9409 8936 8421 7881 7219 6268

BHP 2.73 2.79 2.9 3.01 3.08 3.14 3.11 3.03

Sones 28 27 27 26 23 22 22 21

 5

1098

CFM 10694 10503 10105 9660 9192 8695 8160 7510 6451

BHP 3.26 3.32 3.44 3.56 3.65 3.72 3.76 3.72 3.58

Sones 31 31 30 29 26 24 24 23 22

1225

CFM 11973 11802 11460 11070 10671 10245 9804 9345 8797 7124

BHP 4.5 4.58 4.72 4.84 4.97 5.07 5.16 5.22 5.2 4.95

Sones 41 40 38 37 34 31 28 28 28 26

MAX Bhp AT A GIVEN RPM = (rpm/706)3

MAXIMUM RPM = 1225

TIP SPEED (ft/min) = rpm x 6.414

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.1192 x cfm

0 5 10 15 20

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 2 4 6 8 10 12 14

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

5 hp

3 hp

2 hp

1 1/2 hp

1 hp

3/4 hp

1/2 hp

1225

1070

900

730

560

390

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

36

BSQ 240HP - Belt Drive

34

(864)

39

(991)

347⁄8

(886)

39

(991)

11⁄2 (38)

*19

(483)

*22

(559)

*327⁄8

(835)

Damper size = 35 x 35 (889 x 889)

Unit weight** = 415 (188)

Housing thickness = 18 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 2 2.5 3 3.5 

 1

780

CFM 4321 3791 2789

BHP 0.88 0.9 0.83

Sones 14.4 14.0 13.5

820

CFM 4643 4149 3492

BHP 1.01 1.04 1.03

Sones 15.2 14.8 14.3

 11⁄2939

CFM 5552 5159 4721 4161

BHP 1.48 1.54 1.57 1.55

Sones 18.1 17.3 16.8 16.3

 2

986

CFM 5903 5541 5135 4693 4013

BHP 1.69 1.76 1.81 1.82 1.76

Sones 19.2 18.2 17.9 17.5 17.0

1033

CFM 6251 5909 5533 5128 4609

BHP 1.93 2.01 2.07 2.09 2.07

Sones 20 19.3 18.9 18.6 18.2

 3 1183

CFM 7336 7046 6747 6419 6073 5209

BHP 2.85 2.94 3.02 3.09 3.13 3.1

Sones 25 24 22 22 22 21

 5

1256

CFM 7843 7589 7307 7016 6700 6030 4920

BHP 3.37 3.48 3.57 3.65 3.72 3.77 3.59

Sones 27 26 25 24 23 22 22

1329

CFM 8346 8125 7859 7593 7304 6686 5897

BHP 3.96 4.09 4.18 4.28 4.35 4.44 4.4

Sones 30 28 27 26 25 24 23

1402

CFM 8848 8657 8405 8152 7897 7327 6721 5790

BHP 4.61 4.76 4.86 4.96 5.06 5.2 5.24 5.09

Sones 33 31 30 29 27 25 25 24

 71⁄2

1470

CFM 9313 9132 8908 8667 8427 7901 7334 6622 5565

BHP 5.28 5.44 5.57 5.67 5.77 5.94 6.02 5.97 5.7

Sones 36 34 32 32 31 27 26 25 24

1605

CFM 10232 10066 9896 9675 9455 9007 8512 7987 7348 6474

BHP 6.8 6.98 7.16 7.27 7.38 7.6 7.78 7.84 7.8 7.57

Sones 43 42 39 38 38 34 30 29 28 27

MAX Bhp AT A GIVEN RPM = (rpm/807)3

MAXIMUM RPM = 1605

TIP SPEED (ft/min) = rpm x 6.414

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.1192 x cfm

0 5 10 15 20

0

200

400

600

800

1000

1200

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 2 4 6 8 10 12

0

1

2

3

4

5

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

7 1/2 hp

5 hp

3 hp

2 hp

1 1/2 hp

1 hp

1605

1360

RPM

HP

Density 0.075 lb/ft3

400

640

880

1120

37

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 300 - Belt Drive

38

(965)

46

(1168)

417⁄8

(1064)

46

(1168)

11⁄2 (38)

*18

(457)

*22

(559)

*34

(864)

Damper size = 42 x 42 (1067 x 1067)

Unit weight** = 537 (244)

Housing thickness = 16 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25

BSQ-300-7 3/4

410

CFM 6897 6141

BHP 0.57 0.6

Sones 10.4 10.3

449

CFM 7693 7033 4827

BHP 0.75 0.78 0.73

Sones 12.2 11.6 10.5

BSQ-300-10 1 494

CFM 8598 7982 6450

BHP 0.99 1.02 1.04

Sones 14.7 13.8 12.0

BSQ-300-15 11⁄2566

CFM 10022 9469 8363 6662

BHP 1.48 1.51 1.57 1.52

Sones 17.2 16.6 15.1 13.5

BSQ-300-20 2 623

CFM 11129 10636 9676 8418

BHP 1.96 2 2.08 2.09

Sones 19.3 19.0 17.7 16.3

BSQ-300-30 3

668

CFM 11997 11546 10647 9617 8157

BHP 2.4 2.46 2.54 2.59 2.52

Sones 21 21 19.8 18.5 17.2

713

CFM 12862 12446 11588 10703 9547 7803

BHP 2.91 2.97 3.06 3.13 3.13 2.95

Sones 23 23 22 21 19.8 18.5

BSQ-300-50 5

757

CFM 13704 13321 12496 11714 10727 9442

BHP 3.47 3.55 3.64 3.73 3.76 3.68

Sones 25 25 24 23 22 21

845

CFM 15380 15041 14307 13604 12860 11957 10839 9309

BHP 4.8 4.9 5.01 5.12 5.2 5.23 5.16 4.93

Sones 27 27 28 27 26 25 24 23

BSQ-300-75 71⁄2

906

CFM 16538 16221 15548 14870 14237 13481 12576 11497 10099

BHP 5.91 6 6.14 6.25 6.37 6.44 6.44 6.34 6.1

Sones 30 30 31 30 29 29 27 26 26

967

CFM 17693 17396 16776 16124 15526 14888 14171 13273 12242 11047

BHP 7.17 7.27 7.44 7.55 7.67 7.78 7.85 7.82 7.71 7.5

Sones 33 33 34 34 33 33 32 30 29 28

MAX Bhp AT A GIVEN RPM = (rpm/486)3

MAXIMUM RPM = 967

TIP SPEED (ft/min) = rpm x 7.984

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.0826 x cfm

0 10 20 30 40

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 5 10 15 20 25

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

7 1/2 hp

5 hp

3 hp

2 hp

1 1/2 hp

1 hp

3/4 hp

967

RPM

HP

Density 0.075 lb/ft3

855

735

615

495

375

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

38

BSQ 300HP - Belt Drive

38

(965)

46

(1168)

417⁄8

(1064)

46

(1168)

11⁄2 (38)

*18

(457)

*22

(559)

*34

(864)

Damper size = 42 x 42 (1067 x 1067)

Unit weight** = 537 (244)

Housing thickness = 16 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 1.75 2 2.5 3 3.5

 11⁄2

620

CFM 5642 4823

BHP 1.06 1.1

Sones 14.4 14.0

694

CFM 6610 6001 5168 3452

BHP 1.44 1.51 1.53 1.36

Sones 16.5 16.1 15.8 16.3

 2

725

CFM 6998 6436 5729 4747

BHP 1.63 1.71 1.75 1.71

Sones 17.5 17.2 16.8 16.6

777

CFM 7641 7151 6556 5799 4740

BHP 1.98 2.07 2.13 2.15 2.07

Sones 19.3 19.1 18.5 18.4 18.2

 3

829

CFM 8265 7830 7317 6701 5940 4535

BHP 2.36 2.47 2.56 2.61 2.61 2.4

Sones 21 21 21 20 20 20

934

CFM 9492 9142 8746 8281 7752 7130 6393

BHP 3.29 3.44 3.56 3.65 3.72 3.74 3.71

Sones 26 26 26 25 25 25 24

 5

987

CFM 10105 9788 9417 9012 8564 8027 7411 5200

BHP 3.85 4.02 4.14 4.25 4.34 4.4 4.41 3.99

Sones 27 27 27 26 26 25 25 25

1039

CFM 10702 10401 10067 9711 9292 8847 8323 7028

BHP 4.45 4.63 4.78 4.9 5 5.09 5.14 5.09

Sones 28 27 27 27 26 26 26 25

1091

CFM 11297 11010 10710 10371 10006 9601 9149 8055 6257

BHP 5.11 5.3 5.48 5.61 5.73 5.83 5.91 5.95 5.57

Sones 29 28 28 28 27 27 26 26 26

 71⁄2

1144

CFM 11900 11626 11353 11036 10713 10336 9950 9020 7832

BHP 5.86 6.05 6.25 6.4 6.54 6.65 6.76 6.88 6.82

Sones 29 29 29 29 29 28 27 27 26

1196

CFM 12489 12228 11966 11681 11372 11047 10677 9853 8840 7545

BHP 6.65 6.86 7.06 7.24 7.39 7.53 7.64 7.81 7.85 7.63

Sones 30 30 30 30 30 29 28 28 28 27

MAX Bhp AT A GIVEN RPM = (rpm/602)3

MAXIMUM RPM = 1196

TIP SPEED (ft/min) = rpm x 7.984

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.0826 x cfm

0 2 4 6 8 10 12 14 16 18 20 22

0

100

200

300

400

500

600

700

800

900

1000

1100

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 2 4 6 8 10 12 14

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

1 1/2 hp

2 hp

3 hp

5 hp

7 1/2 hp

1196

RPM

HP

Density 0.075 lb/ft3

1040

880

770

560

400

39

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 360 - Belt Drive

42

(1067)

52

(1321)

477⁄8

(1216)

52

(1321)

11⁄2 (38)

*18

(457)

*22

(559)

*34

(864)

Damper size = 48 x 48 (1219 x 1219)

Unit weight** = 686 (311)

Housing thickness = 16 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25

BSQ-360-10 1

320

CFM 8205 6979

BHP 0.63 0.64

Sones 10.8 10.5

376

CFM 10039 9008

BHP 1.01 1.04

Sones 12.6 12.5

BSQ-360-15 11⁄2

404

CFM 10898 9941 7828

BHP 1.25 1.28 1.25

Sones 13.6 13.6 12.2

431

CFM 11720 10872 8980

BHP 1.51 1.55 1.55

Sones 14.7 14.7 13.7

BSQ-360-20 2 474

CFM 13018 12323 10736 8489

BHP 1.99 2.05 2.09 1.96

Sones 16.1 16.6 15.7 14.1

BSQ-360-30 3 543

CFM 15081 14544 13112 11627 9553

BHP 2.96 3.05 3.12 3.12 2.93

Sones 19.1 19.6 19.4 18.1 16.6

BSQ-360-50 5 643

CFM 18041 17587 16511 15327 14081 12560

BHP 4.87 4.98 5.13 5.19 5.19 5.05

Sones 28 27 27 26 25 23

BSQ-360-75 71⁄2

690

CFM 19423 19001 18083 16881 15926 14555 13120

BHP 6 6.12 6.31 6.38 6.45 6.38 6.2

Sones 29 29 29 28 28 27 25

737

CFM 20802 20407 19615 18505 17515 16475 15153 13704

BHP 7.3 7.42 7.66 7.75 7.82 7.84 7.72 7.49

Sones 31 31 32 32 31 30 29 28

BSQ-360-100 10

774

CFM 21885 21509 20755 19765 18744 17893 16693 15429 13860

BHP 8.44 8.57 8.82 8.95 9.03 9.11 9.03 8.86 8.55

Sones 32 32 33 34 33 33 32 30 30

811

CFM 22967 22607 21888 21011 19986 19146 18195 16996 15786 14128

BHP 9.69 9.83 10.1 10.27 10.35 10.44 10.45 10.34 10.13 9.73

Sones 33 34 35 37 36 35 34 33 32 32

MAX Bhp AT A GIVEN RPM = (rpm/370)3

MAXIMUM RPM = 811

TIP SPEED (ft/min) = rpm x 9.424

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.0632 x cfm

0 10 20 30 40

0

100

200

300

400

500

600

700

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 5 10 15 20 25

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

10 hp

7 1/2 hp

5 hp

3 hp

2 hp

1 1/2 hp

1 hp

811

700

600

500

400

300

RPM

HP

Density 0.075 lb/ft3

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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.



BSQ 360HP - Belt Drive

42

(1067)

52

(1321)

477⁄8

(1216)

52

(1321)

11⁄2 (38)

*18

(457)

*22

(559)

*34

(864)

Damper size = 48 x 48 (1219 x 1219)

Unit weight** = 686 (311)

Housing thickness = 16 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.5 0.75 1 1.25 1.5 2 2.5 3 3.5 

 11⁄2

490

CFM 5939 4709

BHP 1.12 1.12

Sones 16.1 15.8

545

CFM 7012 6115 4672

BHP 1.51 1.55 1.51

Sones 17.6 16.9 16.9

 2 600

CFM 8000 7272 6410 4868

BHP 1.97 2.06 2.09 1.99

Sones 18.4 17.6 17.3 17.4

 3

644

CFM 8745 8143 7381 6424 4630

BHP 2.4 2.52 2.55 2.57 2.37

Sones 19.0 18.3 17.7 17.7 18.1

687

CFM 9463 8955 8277 7528 6453

BHP 2.87 3.01 3.09 3.12 3.08

Sones 19.5 19.0 18.4 18.2 18.2

 5

730

CFM 10177 9716 9142 8465 7741 4517

BHP 3.41 3.56 3.68 3.71 3.77 3.28

Sones 20 19.7 19.2 18.6 18.6 20

815

CFM 11576 11150 10740 10198 9593 8138 4978

BHP 4.63 4.83 4.99 5.13 5.16 5.2 4.55

Sones 21 21 21 20 20 19.9 22

 71⁄2

874

CFM 12535 12131 11747 11319 10801 9633 7849

BHP 5.64 5.88 6.05 6.22 6.35 6.42 6.29

Sones 24 23 23 22 22 22 22

933

CFM 13487 13108 12740 12382 11939 10909 9748 7674

BHP 6.8 7.04 7.26 7.45 7.61 7.75 7.86 7.52

Sones 27 27 25 25 25 24 24 25

 10

980

CFM 14241 13880 13523 13182 12822 11879 10833 9417 6847

BHP 7.83 8.08 8.33 8.53 8.72 8.96 9.05 8.99 8.27

Sones 30 30 28 27 27 27 26 27 28

1026

CFM 14975 14631 14286 13957 13631 12806 11838 10796 8982 5679

BHP 8.93 9.2 9.47 9.69 9.89 10.25 10.31 10.46 10.12 8.6

Sones 33 34 32 30 29 30 29 29 30 32

MAX Bhp AT A GIVEN RPM = (rpm/469)3

MAXIMUM RPM = 1026

TIP SPEED (ft/min) = rpm x 9.424

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.0632 x cfm

0 2 4 6 8 10 12 14 16 18 20 22 24 26

0

100

200

300

400

500

600

700

800

900

1000

1100

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

O

F

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 2 4 6 8 10 12 14 16

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

10 hp

7 1/2 hp

5 hp

3 hp

2 hp

1 1/2 hp

1026

880

775

590

445

300

RPM

HP

Density 0.075 lb/ft3



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

does not include transmission losses.

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation

type B: free inlet hemispherical fan sone levels.

BSQ 420 - Belt Drive

50

(1270)

58

(1473)

537⁄8

(1368)

58

(1473)

11⁄2 (38)

*18

(457)

*22

(559)

*34

(864)

Damper size = 54 x 54 (1372 x 1372)

Unit weight** = 789 (358)

Housing thickness = 14 ga

Dimensions shown in inches (millimeters) and weight is shown in

pounds (kilograms).

*Motor cover is optional. Size may be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

 









0.125 0.25 0.375 0.5 0.75 1 1.25 1.5 1.75 2

 2

270

CFM 9901 8281

BHP 0.68 0.7

Sones 6.0 3.3

349

CFM 13501 12428 11210 9592

BHP 1.41 1.48 1.51 1.49

Sones 9.4 8.7 8.1 7.8

389

CFM 15275 14340 13334 12132

BHP 1.93 2.02 2.08 2.09

Sones 13.2 12.3 11.5 10.8

 3

417

CFM 16500 15633 14714 13745 11026

BHP 2.37 2.46 2.53 2.58 2.52

Sones 16.6 15.7 14.8 13.9 12.5

445

CFM 17704 16910 16068 15188 12941

BHP 2.86 2.96 3.05 3.11 3.12

Sones 20 19.5 18.6 17.7 15.9

 5

487

CFM 19500 18801 18054 17257 15475 13113

BHP 3.71 3.84 3.95 4.02 4.11 4.03

Sones 22 21 21 19.8 18.2 16.9

528

CFM 21244 20625 19937 19231 17747 15850 13154

BHP 4.7 4.85 4.97 5.08 5.22 5.24 4.99

Sones 25 24 23 23 21 20 18.7

 71⁄2

566

CFM 22854 22301 21659 21017 19644 18080 16134 13026

BHP 5.76 5.94 6.07 6.19 6.36 6.46 6.39 5.95

Sones 28 27 26 25 24 24 22 21

604

CFM 24459 23950 23363 22762 21502 20206 18533 16581

BHP 6.98 7.17 7.32 7.45 7.66 7.83 7.84 7.71

Sones 31 30 30 29 28 27 26 25

 10

635

CFM 25765 25281 24743 24171 22996 21762 20341 18681 16692

BHP 8.09 8.29 8.46 8.6 8.85 9.03 9.12 9.09 8.88

Sones 35 33 33 32 31 30 30 29 28

670

CFM 27237 26778 26291 25749 24660 23491 22322 20793 19111 16873

BHP 9.47 9.69 9.88 10.03 10.33 10.52 10.71 10.7 10.61 10.24

Sones 39 37 36 36 34 34 34 33 32 31

MAX Bhp AT A GIVEN RPM = (rpm/304)3

MAXIMUM RPM = 670

TIP SPEED (ft/min) = rpm x 11.060

MAX NEMA MOTOR FRAME SIZE = 215T

OUTLET VELOCITY (ft/min) = 0.0496 x cfm

0 10 20 30 40 50

0

200

400

600

D

O

N

O

T

S

E

L

E

C

T

T

O

T

H

E

L

E

F

T

OF

T

H

I

S

S

Y

S

T

E

M

C

U

R

V

E

0 5 10 15 20 25 30

0.0

0.5

1.0

1.5

2.0

2.5

Static Pressure in. wg

cfm X 1000

m3/hr X 1000

Static Pressure Pa

10 hp

7 1/2 hp

5 hp

3 hp

2 hp

670

605

535

465

395

325

RPM

HP

Density 0.075 lb/ft3



Direct Drive Specifications

Duct mounted supply, exhaust, or return fans shall be of the

centrifugal, direct driven, inline type. The fan housing shall be

of the square design constructed of heavy gauge galvanized

steel or aluminum and shall include square duct mounting

collars.



located perpendicular to the motor mounting panel. The

access panels must be of sufficient size to permit easy access

to all interior components.

The fan wheel shall be centrifugal, backward inclined,

constructed of aluminum, and shall include a wheel cone

carefully matched to the inlet cone for precise running

tolerances. Wheels shall be statically and dynamically

balanced.





maintenance.









individual serial number for future identification.





Duct mounted supply, exhaust, or return fans

shall be of the centrifugal, belt driven, inline

type. The fan housing shall be of the square

design constructed of heavy gauge galvanized

steel or aluminum and shall include square

duct mounting collars.



access panels located perpendicular to the

motor mounting panel. The access panels must

be of sufficient size to permit easy access to

all interior components.

The fan wheel shall be centrifugal backward

inclined, constructed of aluminum, and shall

include a wheel cone carefully matched to

the inlet cone for precise running tolerances.

Wheels shall be statically and dynamically

balanced.



type carefully matched to the fan load and

furnished at the specified voltage, phase, and



maintenance.



1050 average life



Drives shall be sized for a minimum of 150 percent of driven horsepower.



shafts.





provided from motor to the handy box.





individual serial number for future identification.



Belt Drive Specifications

Greenheck warrants this equipment to be free from defects in material and workmanship for a period

of one year from the purchase 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.

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



Our Warranty

Prepared to Support

Green Building Efforts

Greenheck delivers value

to mechanical engineers by

helping them solve virtually

any air quality challenges

their clients face with a

comprehensive selection of

top quality, innovative air-

related equipment. We offer

extra value to contractors

by providing easy-to-install,

competitively priced, reliable

products that arrive on time.

And building owners and

occupants value the energy

efficiency, low maintenance

and quiet dependable operation

they experience long after the

construction project ends.

SQ BSQ Rev. 6 April 2008 SP

Copyright © 2008 Greenheck Fan Corp.

Centrifugal Inline Guide

 centrifugal forward curved direct driven cabinet fans are for



from 70 to 3,800 cfm (120 to 6,500 m3/hr) and up to 1 in. wg (250 Pa) of

static pressure.

 centrifugal forward curved belt drive fans are for use in supply,

exhaust, or return air applications. Designed in a low profile cabinet

with heights ranging from 11 to 23 in. (279 to 584 mm)

from 170 to 3,330 cfm (290 to 56,00 m3/hr) for single fan models and

600 to 5,800 cfm (1020 to 9,900 m3/hr) for double fan models with up to

1.5 in. wg (370 Pa) of static pressure.

 centrifugal forward curved belt drive duct fans are designed



300 to 15,000 cfm (510 to 25,500 m3/hr) with up to 3 in. wg (740 Pa) of static

pressure.

 centrifugal backward inclined belt or direct drive fans





30 to 27,000 cfm (50 to 45,900 m3/hr)(990 Pa) of static

(82°C).

 centrifugal backward inclined belt drive fans for higher

(600 to 40,800 m3/hr)

(1118 Pa)

(93°C).