Greenheck G Manual page 22

Roof Downblast Exhaust
Belt & Direct Drive
GB-101HP • G-103HP
24 3 ⁄
8
(619)
19
(483)
Damper Size = 12 x 12
(305 x 305)
Roof Opening = 14½ x 14½
Shroud Thickness = 0.051
Motor Cover Thickness = 0.040
Curb Cap Thickness = 0.064
^Approximate Unit Weight G/GB = 58/63 lbs.
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
Fan
Belt Direct RPM
101HP 103HP
1300
VG-
1445
1/2
1590
1/4
A-1/4 1725
1880
2025
2137
1/3
2229
2336
1/2 2500
2550
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.
22
3 ⁄
*23
4
(603)
4 3 ⁄
(111)
8
1 3 ⁄
(44)
4
(368 x 368)
(1.3)
(1.0)
(1.6)
(26/29 kg)
0 0.25
571 477
CFM
0.06 0.06
BHP
6.6 5.7
Sones
CFM 635 553
BHP 0.08 0.09
Sones 8.4 7.5
CFM 699 626
BHP 0.10 0.11
10.4 9.5
Sones
758 692
CFM
0.13 0.14
BHP
11.4 10.7
Sones
826 767
CFM
0.17 0.18
BHP
12.7 12.2
Sones
CFM 890 836
BHP 0.21 0.23
Sones 14.2 13.6
939 889
CFM
BHP 0.25 0.26
15.4 14.8
Sones
979 931
CFM
0.28 0.30
BHP
15.8 15.4
Sones
CFM 1026 981
0.33 0.34
BHP
Sones 16.4 16
CFM 1098 1056
BHP 0.40 0.42
Sones 17.8 17.4
CFM 1120 1078
0.43 0.44
BHP
Sones 18.2 17.9
Direct Drive RPM
A-1725
Static Pressure in Inches wg
0.5 0.75 1 1.25
342
0.07
MAXIMUM BHP AT A GIVEN RPM = (RPM/3165)
5.3
449 243
MAXIMUM MOTOR FRAME SIZE = 56
0.09 0.08
7 6.3
537 417
0.12 0.12
9.1 8.3
613 521 364
0.15 0.16 0.15
10.6 10.1 10
697 618 518 337
0.19 0.20 0.20 0.18
11.9 12 11.4 11.9
772 702 622 515
0.24 0.24 0.26 0.25
13.3 13.2 12.6
830 765 693 607
0.28 0.28 0.29 0.30
14.4 14.2 13.4 13.1
875 814 748 674
0.31 0.32 0.33 0.35
14.8 14.5 14.1 13.7
928 871 809 742
0.36 0.36 0.37 0.39
15.4 14.9 14.7
1008 956 901 840
0.43 0.45 0.45 0.46
16.9 16.7 15.8 15.5
1032 982 928 869
0.46 0.47 0.47 0.49
17.4 17.2 16.3 16.1
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
Volume (cfm)
3
Volume (m /hr )
VG-2550-
RPM RPM
1.5 1.75 2
MAXIMUM RPM = 2550
TIP SPEED (ft/min) = RPM x 2.978
313
0.22
12 11.4
474
0.28
12.1
574 406
0.33 0.31
13.2 12.0
661 543 358
0.40 0.37 0.34
14 14.1 13.5 13.6
775 695 583
0.48 0.48 0.46
14.8 15.2 15.7
807 735 639
0.51 0.52 0.50
15.1 15.6 16.2
3
3
2.25
3
416
0.42
16.6
497
0.47
17.2