Greenheck Series L Brochure & Specs page 19

Centrifugal roof exhaust fans
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LB/LBP 36
Belt Drive
LB Dimensions
60
(1524)
1
3
46
4
(44)
(1168)
LBP Dimensions
51
3
4
(1314)
46
1
3
4
(1168)
(44)
Model
Motor
Number
HP
LB/LBP-36-5
1/2
LB/LBP-36-7
3/4
LB/LBP-36-10
1
LB/LBP-36-15
1
1
2
LB/LBP-36-20
2
LB/LBP-36-30
3
LB/LBP-36-50
5
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 in the airstream. The sound ratings shown are loudness values in fan sones at 5 feet (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values
shown are for installation type A: Free inlet hemispherical sones.
63
27
(1600)
(686)
9
46
(248)
(1168)
63
26
(1600)
(660)
46
(1168)
Fan
RPM
0
0.25
CFM
6204
220
BHP
0.16
Sones
4.9
CFM
8884
6937
315
BHP
0.47
0.55
Sones
8.2
6.3
CFM
10153
8570
360
BHP
0.7
0.81
Sones
10.6
8.9
CFM
11196
9816
397
BHP
0.94
1.08
Sones
13.7
12.1
CFM
12014
10765
426
BHP
1.16
1.32
Sones
14.8
14.0
CFM
12804
11668
454
BHP
1.41
1.58
Sones
16.0
15.4
CFM
14073
13064
499
BHP
1.87
2.06
Sones
18.2
17.6
CFM
15116
14196
536
BHP
2.31
2.52
Sones
20
19.7
CFM
16132
15287
572
BHP
2.81
3.04
Sones
22
22
CFM
17316
16540
614
BHP
3.48
3.72
Sones
25
24
CFM
19121
18419
678
BHP
4.69
4.95
Sones
30
29
2.0
400
1.5
32
5
300
8
(829)
1.0
200
3
4
0.5
100
0
0.0
34
3
Hood Thickness
8
(873)
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
All dimensions are in inches (millimeters). Weight in pounds
(kilograms). *Weight shown is the largest cataloged
Open Drip Proof motor. See page 8 for severe duty LBP
dimensions.
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
MAX. BHP AT A GIVEN RPM - (rpm/384)
MAXIMUM FRPM = 678
TIP SPEED = rpm x 9.425
MAX. MOTOR FRAME SIZE = 184T
7487
0.83
7.9
8911
7775
1.1
1.1
10.6
9.4
9964
9056
7716
1.35
1.37
1.34
12.7
11.6
10.1
10949
10127
9209
1.63
1.65
1.66
14.5
13.7
12.5
12442
11760
11004
2.13
2.17
2.2
17.2
16.6
16.1
13646
13037
12361
2.61
2.67
2.7
19.3
18.7
18.4
14790
14229
13649
3.14
3.21
3.26
21
21
20
16087
15598
15066
3.84
3.93
3.99
24
24
23
18041
17621
17165
5.08
5.21
5.3
29
29
28
Density 0.075 lb/ft
0
2
4
6
8
10
12
14
cfm X 1000
0
10
20
3
m
/hr X 1000
LB-36
0.064
(0.029)
-
-
0.064
(0.029)
36
(914)
38
1
(978)
2
Galvanized,
338
(153)
0.75
0.875
1
1.25
7552
1.57
11.0
10173
8773
2.2
2.12
15.1
13.9
11652
10837
9559
2.73
2.72
2.65
17.8
16.7
15.8
12989
12313
11534
3.29
3.32
3.31
19.9
19.0
18.1
14504
13890
13262
11584
4.05
4.08
4.1
4.04
23
22
21
19.2
16683
16192
15636
14494
5.37
5.44
5.47
5.52
27
27
26
24
RPM
HP
3
16
18
20
30
LBP-36
-
0.064
(0.029)
0.081
(0.036)
0.064
(0.029)
36
(914)
38
1
(978)
2
Aluminum,
444
(201)
1.5
3
12970
5.45
22
19

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