Greenheck G Manual page 32

Roof Downblast - Exhaust
Belt Drive
GB-200HP
35 1 ⁄
2
(902)
30
(762)
Damper Size = 18 x 18
(457 x 457)
Roof Opening = 20½ x 20½
Shroud Thickness = 0.064
Motor Cover Thickness = 0.040
Curb Cap Thickness = 0.064
^Approximate Unit Weight = 166 lbs.
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor Fan
HP RPM
200HP
CFM
740
BHP
Sones
1/2
CFM
895
BHP
Sones
CFM
958 BHP
Sones
3/4
CFM
1020
BHP
Sones
CFM
1 1125
BHP
Sones
CFM
1205 BHP
Sones
1 1 ⁄
2
CFM
1285 BHP
Sones
CFM
1350
BHP
Sones
2
CFM
1415
BHP
Sones
CFM
1520 BHP
Sones
3
CFM
1625 BHP
Sones
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. The sound ratings shown are loudness values in hemispherical 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.
32
*28
(711)
5 1 ⁄
(140)
2
1 3 ⁄
(44)
4
(521 x 521)
(1.6)
(1.0)
(1.6)
(75 kg)
0.5 0.75 1
1961
0.30
8.7
2809 2331 1424
0.52 0.53 0.45
11.4 10.9 10.3
3116 2715 2153
0.63 0.65 0.63
12.8 12.1 11.6
3409 3050 2602
0.75 0.77 0.78
14.1 13.6 13.1
3885 3584 3243
0.99 1.02 1.04
16.9 16.4 15.5
4229 3967 3663
1.19 1.24 1.27
18.8 17.9 17.2
4569 4343 4070
1.43 1.49 1.52
21 20 19.1
4843 4638 4384
1.65 1.71 1.75
23 22 21
5114 4919 4692
1.88 1.95 2.00
24 24 23
5550 5368 5182
2.31 2.38 2.45
27 27 27
5982 5812 5642
2.80 2.88 2.95
32 31 31
Volume (m /hr x 1000)
Static Pressure in Inches wg
1.25 1.5 2
MAXIMUM BHP AT A GIVEN RPM = (RPM/1106)
TIP SPEED (ft/min) = RPM x 5.596
MAXIMUM MOTOR FRAME SIZE = 184T
1857
0.71
12.6
2804 2136
1.04 0.97
15.3 15.2
3314 2884
1.29 1.27
16.5 16.4
3770 3416 2278
1.55 1.57 1.40
18.1 17.8 18.9
4109 3811 2996
1.78 1.81 1.76
19.8 19.3 19.1
4442 4169 3492
2.04 2.07 2.07
22 21 19.7
4952 4713 4166
2.50 2.53 2.58
26 24 23
5448 5233 4767
3.02 3.06 3.13
29 28 27
RPM (Belt)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
Volume (cfm)
3
2.5 2.75 3
MAXIMUM RPM = 1625
2250
1.78
23
3458 2850 2046
2.53 2.38 2.06
22 22 22
4196 3859 3377
3.16 3.12 3.01
25 24 23
3
3
3.25
3
2725
2.76
22