LB/LBP 21

Belt Drive

LB Dimensions

2.0

43

(1092)

134

30

(44)

(762)

23

51

 

 

 

(1295)

 

 

 

(584)

 

 

 

 

 

 

 

23

Pa

 

 

6

PressureStatic

 

 

(584)

 

 

 

 

 

30

(152)

 

 

 

(762)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/2

2

RPM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

hp

R

hp

HP

 

 

 

 

 

 

 

 

 

1

 

 

 

 

U

 

400

 

 

 

 

 

 

 

 

 

hp

 

C

 

Density 0.075 lb/ft3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

wg

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

3/4

 

 

 

 

Y

 

 

 

 

 

 

 

1/2

 

 

 

hp

 

S

 

 

 

 

in.

 

 

 

 

 

 

S

 

 

 

 

 

 

 

hp

 

 

 

 

 

 

 

 

 

300

 

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

 

 

1200

 

Pressure

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

1.0

1/3

 

 

 

 

 

 

 

 

 

O

 

 

 

 

1/4

hp

 

 

 

 

 

 

 

 

T

 

 

1053

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

hp

 

 

 

 

 

 

 

 

 

 

E

 

 

 

200

 

 

 

 

 

 

 

 

 

 

 

 

E

L

 

906

 

Static

 

 

 

 

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

T

 

 

 

 

759

 

 

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

L

 

 

 

 

 

 

612

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

465

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LBP Dimensions

0

0.00

1000

2000

3000

4000

5000

6000

7000

8000

 

 

 

 

 

cfm

 

 

 

 

36

(914)

134

30

(44)

(762)

46

19(1168)

(483)

30

(762)

2412

(622)

0

2

4

6

8

10

12

 

 

 

m3/hr X 1000

 

 

 

LB-21

LBP-21

Hood Thickness

22 ga

-

Cover Thickness

-

0.064 (0.029)

Louver Thickness

-

0.081 (0.036)

Curb Cap Thickness

0.064 (0.029)

0.064 (0.029)

Damper Size Square

18 (457)

18 (457)

Roof Opening Square

2012 (521)

2012 (521)

Weight*

Galvanized,

Aluminum,

145 (66)

191 (86)

 

All dimensions are in inches (millimeters). Weight in pounds (kilograms). *Weight shown is the largest cataloged Open Drip Proof motor. See page 8 for severe duty LBP dimensions.

Model

Motor

Fan

 

 

 

 

CFM / Static Pressure in Inches wg

 

 

 

 

 

Number

HP

RPM

 

0

0.25

0.375

0.5

0.625

 

0.75

1

1.25

1.5

 

1.75

 

 

465

CFM

2820

1732

 

 

 

 

 

 

 

 

 

 

 

 

 

BHP

0.12

0.13

 

 

 

MAX. BHP AT A GIVEN RPM - (rpm/910)3

 

 

LB/LBP-21-4

1/4

 

Sones

6.6

5.2

 

 

 

MAXIMUM FRPM = 1200

 

 

 

 

 

 

 

 

 

 

 

TIP SPEED = rpm x 5.596

 

 

 

 

 

CFM

3609

2938

2457

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX. MOTOR FRAME SIZE = 145T

 

 

 

 

595

BHP

0.24

0.28

0.28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sones

8.8

7.8

6.9

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

3948

3371

2970

2354

 

 

 

 

 

 

 

 

 

LB/LBP-21-3

1/3

651

BHP

0.32

0.36

0.36

0.34

 

 

 

 

 

 

 

 

 

 

 

 

Sones

10.1

8.8

8.2

6.9

 

 

 

 

 

 

 

 

 

 

 

 

CFM

4239

3724

3362

2954

1964

 

 

 

 

 

 

 

 

 

 

699

BHP

0.39

0.44

0.45

0.45

0.38

 

 

 

 

 

 

 

 

LB/LBP-21-5

1/2

 

Sones

11.6

9.9

9.3

8.6

7.1

 

 

 

 

 

 

 

 

 

CFM

4531

4056

3741

3390

2909

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

747

BHP

0.48

0.53

0.54

0.55

0.53

 

 

 

 

 

 

 

 

 

 

 

Sones

13.4

11.2

10.4

9.8

9.1

 

 

 

 

 

 

 

 

 

 

 

CFM

4858

4424

4157

3833

3491

 

2937

 

 

 

 

 

 

 

 

801

BHP

0.59

0.65

0.66

0.67

0.68

 

0.64

 

 

 

 

 

 

LB/LBP-21-7

3/4

 

Sones

15.5

12.9

11.8

11.3

10.8

 

10.1

 

 

 

 

 

 

 

CFM

5186

4790

4553

4261

3954

 

3608

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

855

BHP

0.72

0.79

0.8

0.81

0.82

 

0.82

 

 

 

 

 

 

 

 

 

Sones

16.7

14.4

13.3

12.8

12.1

 

11.5

 

 

 

 

 

 

 

 

 

CFM

5452

5087

4858

4602

4313

 

4019

2894

 

 

 

 

 

LB/LBP-21-10

1

899

BHP

0.83

0.91

0.93

0.94

0.95

 

0.96

0.86

 

 

 

 

 

 

 

 

Sones

17.1

15.4

14.5

13.9

13.4

 

12.7

11.7

 

 

 

 

 

 

 

 

CFM

6126

5826

5614

5415

5183

 

4926

4386

3369

 

 

 

 

 

 

1010

BHP

1.18

1.26

1.3

1.32

1.34

 

1.35

1.36

1.24

 

 

 

 

LB/LBP-21-15

112

 

Sones

20

18.9

18.1

17.3

16.6

 

16.2

15.0

14.0

 

 

 

 

 

CFM

6532

6260

6068

5877

5691

 

5451

4965

4395

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1077

BHP

1.43

1.52

1.56

1.59

1.61

 

1.62

1.65

1.63

 

 

 

 

 

 

 

Sones

22

21

20

19.4

18.8

 

18.2

17.3

16.4

 

 

 

 

 

 

 

CFM

7278

7034

6890

6712

6542

 

6375

5954

5517

5013

 

4122

LB/LBP-21-20

2

1200

BHP

1.98

2.07

2.12

2.18

2.2

 

2.22

2.25

2.28

2.26

 

2.11

 

 

 

Sones

26

25

25

24

23

 

23

22

21

20

 

18.5

Performance certified is for installation type A: Free inlet, Free outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a birdscreen in the airstream. The sound ratings shown are loudness values in fan sones at 5 feet (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type A: Free inlet hemispherical sones.

16

Page 16
Image 16
Greenheck Fan Series L manual LB-21 LBP-21

Series L specifications

Greenheck Fan Series L represents a significant advancement in the world of ventilation and air movement solutions. Known for its exceptional performance and energy efficiency, this series is designed to accommodate various applications, making it a versatile choice for engineers and facility managers alike.

One of the standout features of the Greenheck Fan Series L is its fan design, which has been optimized to deliver maximum airflow with minimal energy consumption. The series utilizes a direct drive motor, which reduces mechanical losses and enhances reliability. This design not only provides significant savings on operating costs but also minimizes maintenance requirements, allowing for longer periods of uninterrupted service.

Additionally, the Series L incorporates advanced aerodynamic technology, ensuring that the fans can operate efficiently even in challenging conditions. The carefully engineered blades and housing contribute to reduced noise levels, making them ideal for environments that prioritize acoustical comfort, such as schools, hospitals, and office buildings.

The Greenheck Fan Series L also offers a range of motor options to suit various operational needs. Customers can choose from premium efficiency motors that meet or exceed energy efficiency standards, further enhancing the sustainability of their ventilation solutions. Voltage and phase options are available to accommodate standard power systems in commercial and industrial settings.

In terms of customization, the Series L boasts multiple configurations, including different sizes and airflow capacities, enabling it to meet the specific requirements of diverse applications. Whether it's for light-duty or heavy-duty use, the series can be tailored to provide the right amount of airflow, ensuring optimal indoor air quality and comfort.

Furthermore, the integration of intelligent controls in the Series L allows for seamless connectivity and monitoring, enabling facility managers to optimize performance and adjust settings remotely. This feature is particularly beneficial in modern smart building applications, where energy efficiency and real-time data management are paramount.

In summary, the Greenheck Fan Series L combines innovative design, robust performance, and advanced technologies to offer an unmatched solution for effective air movement. With its emphasis on energy efficiency, customization, and smart controls, this series stands as a testament to Greenheck's commitment to providing high-quality ventilation solutions that meet the evolving needs of its clients across various industries.