Greenheck Series L Brochure & Specs page 13

Centrifugal roof exhaust fans
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LB/LBP 10
Belt Drive
LB Dimensions
28
(711)
1
3
22
4
(44)
(559)
LBP Dimensions
28
(711)
22
1
3
4
(559)
(44)
Model
Motor
Number
HP
LB/LBP-10-4
1/4
LB/LBP-10-3
1/3
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 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.
39
17
1
(991)
4
(438)
3
1
22
(85)
(559)
38
1
2
14
(978)
(356)
32
5
8
(829)
Fan
RPM
0
0.125
CFM
539
351
600
BHP
0.013
0.014
Sones
3.0
1.6
CFM
639
500
712
BHP
0.021
0.024
Sones
3.6
2.3
CFM
841
746
937
BHP
0.048
0.053
Sones
5.1
4.3
CFM
942
855
1049
BHP
0.067
0.073
Sones
5.9
5.3
CFM
1043
963
1162
BHP
0.091
0.097
Sones
6.9
6.3
CFM
1144
1070
1274
BHP
0.12
0.13
Sones
8.0
7.5
CFM
1244
1177
1386
BHP
0.15
0.16
Sones
9.2
8.8
CFM
1346
1283
1499
BHP
0.19
0.2
Sones
10.0
9.8
CFM
1446
1388
1611
BHP
0.24
0.25
Sones
11.2
10.9
CFM
1516
1461
1689
BHP
0.28
0.29
Sones
12.2
11.9
CFM
1587
1533
1767
BHP
0.32
0.33
Sones
13.5
13.0
1.4
300
1.2
250
1.0
17
200
0.8
(432)
150
0.6
4
100
0.4
50
0.2
0
0.0
17
Hood Thickness
(432)
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
0.25
0.375
0.5
0.625
MAX. BHP AT A GIVEN RPM - (rpm/2476)
MAXIMUM FRPM = 1767
TIP SPEED = rpm x 2.913
MAX. MOTOR FRAME SIZE = 56
623
0.054
3.6
759
625
0.076
0.075
4.7
4.2
887
780
618
0.103
0.103
0.099
5.9
5.4
4.7
1004
917
818
0.13
0.14
0.14
7.1
6.8
6.3
1114
1047
953
0.17
0.18
0.18
8.4
8.2
7.9
1224
1168
1093
0.21
0.22
0.22
9.5
9.3
8.8
1331
1280
1220
0.26
0.27
0.28
10.7
10.4
10.1
1406
1356
1304
0.3
0.31
0.32
11.6
11.3
11.0
1480
1432
1385
0.34
0.35
0.36
12.6
12.2
11.9
Density 0.075 lb/ft
0
200
400
600
800
1000
1200
cfm
0
500
1000
1500
2000
3
m
/hr
LB-10
22 ga
-
0.064
-
0.081
0.064
0.064
(0.029)
12
(305)
14
1
(368)
2
Galvanized,
Aluminum,
56
(25)
0.75
0.875
1
861
0.17
7.3
1006
910
0.22
0.22
8.3
7.8
1142
1064
970
0.28
0.28
0.27
9.5
9.0
8.5
1237
1158
1087
980
0.32
0.32
0.32
0.31
10.6
9.9
9.5
8.9
1327
1254
1182
1112
0.36
0.36
0.36
0.36
11.7
11.0
10.5
10.1
RPM
HP
3
1400
1600
2500
LBP-10
-
(0.029)
(0.036)
(0.029)
12
(305)
14
1
(368)
2
99
(45)
1.125
3
997
0.36
9.5
13

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