Bsq 420, Belt drive – Greenheck Fan Greenheck Centrifugal Inline Fans SQ/BSQ User Manual
Page 45
45
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.
BSQ 420
- Belt Drive
50
(1270)
58
(1473)
53
7
⁄
8
(1368)
58
(1473)
1
1
⁄
2
(38)
*18
(457)
*22
(559)
*34
(864)
Damper size = 54 x 54
(1372 x 1372)
Unit weight** = 789
(358)
Housing thickness = 14 ga
Model
Number
Motor HP
Fan
RPM
CFM / Static Pressure in Inches wg
0.125
0.25
0.375
0.5
0.75
1
1.25
1.5
1.75
2
420
420-20
2
270
CFM
9901
8281
BHP
0.68
0.70
Sones
6.0
3.3
349
CFM
13501
12428
11210
9592
BHP
1.41
1.48
1.51
1.49
Sones
9.4
8.7
8.1
7.8
389
CFM
15275
14340
13334
12132
BHP
1.93
2.02
2.08
2.09
Sones
13.2
12.3
11.5
10.8
420-30
3
417
CFM
16500
15633
14714
13745
11026
BHP
2.37
2.46
2.53
2.58
2.52
Sones
16.6
15.7
14.8
13.9
12.5
445
CFM
17704
16910
16068
15188
12941
BHP
2.86
2.96
3.05
3.11
3.12
Sones
20
19.5
18.6
17.7
15.9
420-50
5
487
CFM
19500
18801
18054
17257
15475
13113
BHP
3.71
3.84
3.95
4.02
4.11
4.03
Sones
22
21
21
19.8
18.2
16.9
528
CFM
21244
20625
19937
19231
17747
15850
13154
BHP
4.70
4.85
4.97
5.08
5.22
5.24
4.99
Sones
25
24
23
23
21
20
18.7
420-75
7
1
⁄
2
566
CFM
22854
22301
21659
21017
19644
18080
16134
13026
BHP
5.76
5.94
6.07
6.19
6.36
6.46
6.39
5.95
Sones
28
27
26
25
24
24
22
21
604
CFM
24459
23950
23363
22762
21502
20206
18533
16581
BHP
6.98
7.17
7.32
7.45
7.66
7.83
7.84
7.71
Sones
31
30
30
29
28
27
26
25
420-100
10
635
CFM
25765
25281
24743
24171
22996
21762
20341
18681
16692
BHP
8.09
8.29
8.46
8.60
8.85
9.03
9.12
9.09
8.88
Sones
35
33
33
32
31
30
30
29
28
670
CFM
27237
26778
26291
25749
24660
23491
22322
20793
19111
16873
BHP
9.47
9.69
9.88
10.03
10.33
10.52
10.71
10.70
10.61
10.24
Sones
39
37
36
36
34
34
34
33
32
31
MAX Bhp AT A GIVEN RPM = (rpm/304)
3
MAXIMUM RPM = 670
TIP SPEED (ft/min) = rpm x 11.060
MAX NEMA MOTOR FRAME SIZE = 215T
OUTLET VELOCITY (ft/min) = 0.0496 x cfm
0
10
20
30
40
50
0
200
400
600
DO
NO
T S
EL
EC
T
TO
T
H
E
LE
FT
O
F
TH
IS
S
Y
S
TE
M
C
U
R
VE
0
5
10
15
20
25
30
0.0
0.5
1.0
1.5
2.0
2.5
Static Pr
essur
e in. wg
cfm X 1000
m
3
/hr X 1000
Static Pr
essur
e Pa
10 hp
7 1/2 hp
5 hp
3 hp
2 hp
670
605
535
465
395
325
RPM
HP
Density 0.075 lb/ft
3
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.