Greenheck USGF Brochure & Specs page 15

USGF-180 - Belt Drive
35 ⁄
3
8
(899)
30
(762)
Roof Opening = 201/2 x 201/2 (521 x 521)
Windband Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 190 lb. (86 kg)
All dimensions in inches (millimeters).
*May be greater depending on motor.
^Weight shown is largest cataloged Open Drip Proof motor.
Model Motor
Number hp
USGF-180-4 1/4
USGF-180-3 1/3
USGF-180-5 1/2
USGF-180-7 3/4
USGF-180-10 1
USGF-180-15 11/2
USGF-180-20 2
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects
of appurtenances (accessories). The sound ratings shown are loudness values in fan sones at 5 ft (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: Free inlet hemispherical sone levels. The AMCA Certified Ratings Seal applies to sone ratings only.
28 ⁄ *
5
8
(727)
21
(533)
1 ⁄
3
4
(44)
Fan
rpm
0 0.125
CFM 2380 2154
630 BHP 0.13 0.15
Sones 7.1 6.4
CFM 2815 2617
745 BHP 0.22 0.24
Sones 9.2 8.6
CFM 3098 2916
820 BHP 0.30 0.32
Sones 11.2 10.4
CFM 3551 3389
940 BHP 0.45 0.47
Sones 13.8 13.5
CFM 3816 3664
1010 BHP 0.56 0.58
Sones 15.4 15.2
CFM 4061 3919
1075 BHP 0.67 0.70
Sones 16.5 16.2
CFM 4477 4348
1185 BHP 0.90 0.93
Sones 18.5 17.9
CFM 4817 4697
1275 BHP 1.12 1.15
Sones 21 20
CFM 5138 5026
1360 BHP 1.36 1.39
Sones 23 23
CFM 5402 5296
1430 BHP 1.58 1.62
Sones 25 25
CFM 5648 5546
1495 BHP 1.80 1.84
Sones 28 27
H-
CFM / Static Pressure in inches wg
0.25 0.5 0.75 1
1861
0.16 MAXIMUM BHP AT A GIVEN RPM = (RPM/1167)
5.5
TIP SPEED (ft/min.) = RPM x 4.843
2448 1763
MAXIMUM MOTOR FRAME SIZE = 184T
0.26 0.25
AVERAGE DISCHARGE VELOCITY (FPM) = CFM/2.92
8.1 7.1
2759 2257
0.34 0.34
10.0 9.0
3243 2879 2363
0.49 0.52 0.50
13.1 12.4 11.2
3526 3242 2799 2105
0.61 0.65 0.64 0.58
14.9 14.7 13.7 11.8
3786 3554 3141 2652
0.73 0.78 0.78 0.75
15.8 151.5 14.7 13.3
4224 4005 3703 3336
0.96 1.01 1.04 1.04
17.1 16.5 16.0 15.2
4578 4369 4163 3799
1.19 1.24 1.30 1.30
19.5 18.7 18.2 17.5
4913 4710 4532 4232
1.43 1.49 1.56 1.58
22 21 21 20
5189 4993 4819 4593
1.66 1.72 1.79 1.83
25 24 23 22
5443 5254 5082 4921
1.89 1.96 2.02 2.10
27 26 25 25
1.25 1.5 1.75
MAXIMUM RPM = 1495
2841
0.99
14.4
3437 2930
1.28 1.22
16.7 15.9
3912 3537 3023
1.58 1.54 1.46
19.2 18.3 17.3
4270 3968 3567 3001
1.83 1.83 1.76 1.66
22 21 19.5 18.2
4598 4313 3983 3564
2.10 2.10 2.06 1.99
24 23 22
2
3
21
1