Job Name: USF-20-B6 Cut Sheet
Tag: MK-1
Quantity: 1
Printed Date: November 28, 2024
Model: USF-20-B6
Universal Single Width Blower
Standard Construction Features: Galvanized steel scroll (optional coated steel, aluminum or stainless)
with bolted (optional welded) frame, PermaLock seam. Centrifugal backward inclined coated steel (optional
aluminum or stainless) wheel. Galvanized (optional coated steel, aluminum, or stainless) inlet cone. Belt
driven motor mounted out of the airstream.
7 7
Fan Configuration
Brake Horsepower (BHP)
Static Pressure (in. wg)
a
6 6
ar e
Class III 5 5
ed
Arrangement 1 2,39 7
ad
FR P
4 M 4
sh
Discharge position UB
in
Wheel rotation CW 3 3
e
at
Fan material Steel
er
2 2
op
Drive type Belt t
1 no 1
Do
0 0
Performance 0 2 4 6 8 10 12
Volume (CFM) x 1000
Requested Volume (CFM) 11,000
Actual Volume (CFM) 11,000 Fan curve
Total External SP (in. wg) 0.3 Brake horsepower curve
Fan RPM 2,397 Operating Point SP
Drive Loss (%) 6 Operating Bhp point
Operating Power (bhp) 5.4 Max system curve
Startup Power (bhp) 8.7 System curve
FEI 0.67
FEP Input Power (kw) 4.32
Air Stream Temp (F) 400
Start-up Temp (F) 70 Sound
Air Density (lbs/ft^3) 0.037 Octave Bands (hz) LwA dBA Sones
Elevation (ft) 6157 62.5 125 250 500 1000 2000 4000 8000
Static Efficiency (%) 10 Inlet 99 99 99 99 95 93 91 90 101 90 68
Outlet Velocity (ft/min) 4,780 Outlet 105 104 100 98 96 93 92 92 102 90 77
Motor
Greenheck Fan Corporation certifies that the model shown herein
Size (hp) 10 is licensed to bear the AMCA Seal. The ratings shown are based on
tests and procedures performed in accordance with AMCA
V/C/P 460/60/3 Publication 211 and AMCA Publication 311 and comply with the
NEC FLA (Amps) 14 requirements of the AMCA Certified Ratings Program.The AMCA
certified ratings seal applies to sound and air performance and FEI
Min Circuit Ampacity (MCA) 17.5 ratings only.Performance certified is for installation type B: Free
Max Overload Production (MOP) 30 inlet, ducted outlet.Power rating includes transmission
losses.Performance ratings do not include the effects of
appurtenances.The sound power level ratings are shown in
decibels, referred to 10^-12 watts calculated per AMCA Standard
301. The A-weighted sound ratings shown have been calculated
per AMCA International Standard 301.Values shown are for inlet
Lwi, LwiA and outlet Lwo, LwoA sound power levels for installation
Type B: free inlet, ducted outlet. Ratings for outlet sound include
the effects of duct end correction.dBA levels are not licensed by
AMCA International. The AMCA Certified Ratings Seal for Sound
FLA - based on tables 150 or 148 of National Electric Code 2002. Actual applies to inlet Lwi, LwiA and outlet Lwo, LwoA ratings only.
motor FLA may vary, for sizing thermal overload, consult factory.
MCA and MOP values shown only account for the motor, not accessories
(damper actuator, field supplied VFD, etc.).
Page 1 of 2 Version 3.9.0, September 2024
Job Name: USF-20-B6 Cut Sheet
Tag: MK-1
Quantity: 1
Printed Date: November 28, 2024
Dimensions and Weights
Label Value Description
- 20 Wheel Diameter (in)
- 444 Weight w/o accessories (lbs)
A 49 Overall Height (in)
B 76 Overall Width (in)
C 49 Overall Length (in)
- 26.125 Inlet Diameter (in)
- 15.719 x 21.078 Outlet Size (W x H) (in)
*All dimensions are in inches.
Page 2 of 2 Version 3.9.0, September 2024
