Greenheck Fan manual Roof Downblast Exhaust Belt & Direct Drive, GB-071 G-097

Roof Downblast Exhaust

Belt & Direct Drive

GB-071 • G-097

243⁄8

(619)

			(Pa)
	*23	3⁄4
	(603)		Pressure
			Static
43⁄8 (111)
13⁄4 (44)

19

(483)

Damper Size = 12 x 12 (305 x 305) Roof Opening = 141/2 x 141/2 (368 x 368) Shroud Thickness = 0.051 (1.3) Motor Cover Thickness = 0.040 (1.0) Curb Cap Thickness = 0.064 (1.6)

^Approximate Unit Weight G/GB = 54/60 lbs. (24/27 kg)

All dimensions in inches (millimeters).. *May be greater depending on motor. ^Weight shown is largest cataloged Open Drip-Proof motor.

RPM (Belt)

RPM (Direct)

RPM (Vari-Green)

HP

Density 0.075 lb/ft3

E

Density 1.2 kg/m3

V

R

U

wg)

C

M

E

(in.

T

S

Y

Pressure

S

S

I

H

T

F

O

T

F

Static

E

L

E

H

O

T

C

T

T

E

L

E

O

T

S

N

O

D

Volume (cfm)

Volume (m3/hr )

Direct Drive RPM
C-860 RPM	B-1140 RPM	A-1725 RPM	VG-1725 RPM

		Motor HP				Fan
	Belt		Direct			RPM
071		097			720
			VG-		790
		1/4
				C-1/8	860

	0	0..125
CFM	157	107
BHP	0..01	0..01
Sones	1..8	2..0
CFM	172	128
BHP	0..01	0..01
Sones	2..3	2..3
CFM	187	148
BHP	0..02	0..02
Sones	2..8	2..7

	Static Pressure in Inches wg
0..25	0..375	0..5	0..625		0..75	0..875	1	1..125
			MAXIMUM BHP AT A GIVEN RPM = (RPM/3371)3
			MAXIMUM RPM - GB-071=1710, G-097=1725
70				TIP SPEED (ft/min) = RPM x 2.929
0..01				MAXIMUM MOTOR FRAME SIZE = 56
2..2
101
0..02
2..7

1/6

or

1/8

VG -Vari-Green is a direct drive brushless DC motor.

930

1000

1070

B-1/6 1140

1285

1435

1580

A-1/4 1725

CFM	203	166
BHP	0..02	0..02
Sones	3..3	3..4
CFM	218	184
BHP	0..03	0..03
Sones	3..9	4..0
CFM	233	202
BHP	0..03	0..03
Sones	4..6	4..7
CFM	248	220
BHP	0..04	0..04
Sones	5..3	5..4
CFM	280	255
BHP	0..06	0..06
Sones	6..8	6..7
CFM	313	292
BHP	0..08	0..08
Sones	8..0	8..0
CFM	344	324
BHP	0..10	0..10
Sones	9..5	9..5
CFM	376	356
BHP	0..13	0..13
Sones	11..3	11..2

124

0..02

3..2

146100

0..03 0..02

3..9 3..6

167130

0..03 0..03

4..5 4..2

187	152	109
0..04	0..04	0..03
5..1	4..9	4..7
228	197	166	127
0..06	0..05	0..05	0..05
6..6	6..3	6..0	5..9
265	240	212	185	151
0..08	0..08	0..08	0..07	0..07
7..9	7..6	7..3	7..1	6..9
302	281	255	230	205	177	140
0..10	0..10	0..10	0..10	0..10	0..09	0..09
9..4	9..1	8..8	8..5	8..3	8..1	7..9
339	316	297	273	250	227	205	171
0..13	0..13	0..13	0..13	0..13	0..13	0..12	0..12
11..2	10..8	10..5	10..2	9..9	9..7	9..5	9..3

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.

18