Bsq 70, Belt drive – Greenheck Fan Greenheck Centrifugal Inline Fans SQ/BSQ User Manual
Page 24
Performance certified is for installation type B: Free inlet, Ducted 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 1.5 m (5 feet) in a hemispherical free field calculated per AMCA International Standard 301. Values shown are
for installation type B: free inlet hemispherical sone levels.
24
BSQ 70
- Belt Drive
Model
Number
Motor
HP
Fan
RPM
CFM / Static Pressure in Inches wg
0.125
0.250
0.500
0.625
0.750
1.000
1.250
1.500
1.750
2.000
70
70-4
1/4
1050
CFM
184
129
BHP
0.039
0.037
Sones
8.0
7.5
1313
CFM
251
211
117
BHP
0.077
0.076
0.068
Sones
11.0
10.4
9.2
1445
CFM
284
249
169
122
BHP
0.103
0.102
0.097
0.09
Sones
12.8
12.3
10.7
10.3
1577
CFM
314
284
213
175
131
BHP
0.13
0.13
0.13
0.12
0.12
Sones
14.9
14.6
12.7
11.9
11.4
1709
CFM
345
318
254
220
184
97
BHP
0.17
0.17
0.17
0.16
0.16
0.14
Sones
16.1
15.9
14.5
13.9
13.3
12.4
1840
CFM
375
351
293
262
231
159
BHP
0.21
0.21
0.21
0.21
0.20
0.19
Sones
17.3
17.0
16.4
16.0
15.4
14.5
1972
CFM
405
384
331
302
273
212
142
BHP
0.26
0.26
0.26
0.25
0.25
0.24
0.22
Sones
19.2
19.1
18.6
18.2
17.9
17.7
16.5
70-3
1/3
2072
CFM
428
408
360
332
305
249
184
103
BHP
0.30
0.30
0.30
0.30
0.29
0.29
0.27
0.24
Sones
20
20
19.9
19.5
19.1
18.5
18.2
16.8
2172
CFM
450
431
387
361
335
282
224
161
BHP
0.34
0.35
0.35
0.34
0.34
0.33
0.32
0.30
Sones
21
21
21
21
20
19.7
19.2
18.8
70-5
1/2
2329
CFM
486
467
428
406
381
332
283
225
166
BHP
0.43
0.43
0.43
0.43
0.42
0.42
0.41
0.39
0.36
Sones
23
23
23
23
23
22
21
20
21
2486
CFM
521
504
468
447
426
380
334
287
232
176
BHP
0.52
0.52
0.52
0.52
0.52
0.51
0.50
0.49
0.47
0.44
Sones
25
25
25
25
25
24
23
22
22
23
21
(533)
15
(381)
11
7
⁄
8
(302)
15
(381)
1
(25)
*12
1
⁄
2
(318)
*14
(356)
*15
1
⁄
2
(394)
Damper size = 12 x 12
(305 x 305)
Unit weight** = 76
(34)
Housing thickness = 18 ga
MAX Bhp AT A GIVEN RPM = (rpm/3084)
3
MAXIMUM RPM = 2486
TIP SPEED (ft/min) = rpm x 2.928
MAX NEMA MOTOR FRAME SIZE = 145T
OUTLET VELOCITY (ft/min) = 1.0212 x cfm
0
200
400
600
800
1000
0
200
400
600
DO
N
O
T
S
E
LE
C
T
TO
T
H
E
L
E
FT
O
F
TH
IS
S
Y
S
TE
M
C
U
R
V
E
0
100
200
300
400
500
600
0.0
0.5
1.0
1.5
2.0
2.5
Static Pr
essur
e in. wg
cfm
m
3
/hr
Static Pr
essur
e Pa
RPM
HP
Density 0.075 lb/ft
3
1/2 hp
1/3 hp
1/4 hp
2486
2150
1810
1470
1130
790
Dimensions shown in inches (millimeters) and weight is shown in pounds (kilograms).
*Motor cover is optional. Size may be greater depending on motor.
**Weight shown is largest cataloged Open Drip Proof motor.