Greenheck Fan Centrifugal Roof Downblast Exhaust Fans GB User Manual
Page 15
15
0
200
400
600
800
0
20
40
60
80
100
120
140
0
90
180
270
360
450
540
0.0
0.1
0.2
0.3
0.4
0.5
0.6
075-VG
075-D
075-G
075-E
070-VG
070-D
070-G
070-E
Static Pr
essur
e (in. wg)
Volume (cfm)
Volume (m
3
/hr)
Static Pr
essur
e (Pa)
RPM
(Direct)
RPM
(Vari-Green)
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
IS
S
Y
S
T
E
M
C
U
R
V
E
Damper Size = 8 x 8
(203 x 203)
Roof Opening = 10½ x 10½
(267 x 267)
Shroud Thickness = 0.064
(1.6)
Motor Cover Thickness = 0.040
(1.0)
Curb Cap Thickness = 0.064
(1.6)
^Approximate Unit Weight = 15 lbs.
(7 kg)
All dimensions in inches (millimeters). *May be greater depending on motor.
^Weight shown is largest cataloged Open Drip-Proof motor.
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.
Roof Downblast - Exhaust
Direct Drive
G-070 • G-075
E-1050
-
RPM
G-1300
-
RPM
D-1550
-
RPM
1
3
⁄
4
(44)
19
3
⁄
8
(492)
*12
1
⁄
8
(308)
17
(432)
3
(76)
Direct Drive RPM
Direct
Drive
Motor
HP
Fan
RPM
Static Pressure in Inches wg
0
0.05
0.1
0.125
0.15
0.2
0.25
0.3
0.375
0.4
070
VG-
1/6
E-1/100 1050
CFM
253
226
195
179
152
BHP
0.01
0.01
0.01
0.01
0.01
Sones
2.7
2.1
1.7
1.5
1.2
G-1/60
1300
CFM
314
292
269
257
244
214
171
BHP
0.01
0.01
0.02
0.02
0.02
0.02
0.02
Sones
4.1
3.7
3.4
3.3
3.2
2.9
2.6
D-1/30
1550
CFM
374
356
337
327
317
297
274
244
190
BHP
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.03
Sones
5.6
5.4
5.2
5.1
5.1
4.9
4.7
4.5
4.1
1725
CFM
416
400
383
375
366
348
329
309
270
253
BHP
0.03
0.03
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
Sones
6.8
6.7
6.7
6.6
6.6
6.5
6.3
6.2
5.9
5.7
075
VG-
1/6
E-1/80
1050
CFM
297
260
222
200
176
BHP
0.01
0.01
0.01
0.01
0.01
Sones
3.6
3.1
2.9
2.8
2.6
G-1/50
1300
CFM
367
338
309
293
277
241
195
BHP
0.02
0.02
0.02
0.02
0.02
0.02
0.02
Sones
4.1
3.9
3.7
3.7
3.7
3.6
3.5
D-1/25
1550
CFM
438
413
389
377
364
337
309
277
214
BHP
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.03
Sones
6.1
5.8
5.6
5.4
5.3
5.1
4.9
4.9
4.8
1725
CFM
487
465
443
432
421
399
374
349
306
292
BHP
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
Sones
8.0
7.5
7.2
7.1
6.8
6.5
6.2
6.1
6.0
6.0