Greenheck Fan SFD User Manual

Greenheck’s backward- 
inclined utility fans have 
many advantages; higher  
operating efficiencies,  
non-overloading 
horsepower curves 
and higher pressure 
capabilities. You will also receive  
the following benefits with these fans:
•  SWB Series 100 in ten sizes (106 through 124)  

with capacities from 70 to 11,000 cfm  

 and static pressures to  

3.0 in. wg 

.

•  SWB Series 200 in twelve sizes (206 through 224) 

with capacities from 70 to 13,700 cfm  

 and static pressures to  

5.0 in. wg 

.

•  SWB Series 300 in seven sizes (327 through 349) 

with capacities from 4,600 to 54,000 cfm  

 and static pressures to  

5.0 in. wg 

.

•  Three different series of construction will meet your 

exact needs in the most efficient manner.

•  Greenheck utility fans are designed, engineered and 

tested prior to shipment to provide years of smooth, 
vibration-free operation with minimal maintenance.

•  Fans are tested in our AMCA accredited laboratory 

to ensure complete and accurate performance 
ratings. All models are licensed to bear the AMCA 
Air Performance seal. SWB 300 Series AF fans 
are licensed to bear the AMCA Sound and Air 
Performance seal. Performance as cataloged is 
assured.

3

Greenheck models SFD and 
SFB forward-curved utility 
fans have been designed for 
supply, exhaust and return 
air applications requiring low to medium air volumes 
and pressures. You will receive the following benefits 
with these fans:
•  SFD fans are available in four sizes (6, 7.5, 9 and 

10) with different rpm motors. Capacities range 
from 300 to 2,600 cfm 

 with static 

pressures to 2.5 in. wg 

.  

•  SFB fans are available in ten sizes (9 through 30) 

with capacities ranging from 360 to 25,200 cfm  

 and static pressures to  

3.5 in. wg 

.  

•  Greenheck utility fans are designed, engineered 

and tested prior to shipment to provide years of 
smooth, vibration-free operation with minimal 
maintenance.

•  The fan may be mounted indoors or outdoors.
•  All fan sizes are tested in our AMCA accredited 

laboratory to ensure complete and accurate 
performance ratings. All models are licensed to 
bear the AMCA Air Performance seal. Performance 
as cataloged is assured.

SFD

 



 

 



 

2,600

2.5

$

SFB

 



 

 







25,200

3.5

$$

SWB

 



 

       



54,000

5

$$

Models SFD, SFB and SWB  
Utility Fans