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Centrifugal Roof Exhaust Fans
Series L
Low Silhouette
Louvered Penthouse Style
LDP/LBP
Fabra Hood Style
LD/LB
April
2008
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Series L Centrifugal Roof Exhaust Fans Greenheck’s Series L, low silhouette, models LD, LB, LDP, and LBP centrifugal roof exhaust fans provide the industry’s best performance and durability for general clean air applications. 3 • Broadest performance in the industry, up to 1.25 in. wg (311 Pa) and 37,500 cfm (63,713 m /hr). • Performance as cataloged is assured. All fan sizes are tested in our AMCA Accredited Laboratory, and all models are licensed to bear the AMCA sound and air performance se
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Unique Construction Features Fabra Hood Style Louvered Penthouse Style • Hinged Hood - All sizes feature a hood • Hinged Cover - All sizes feature an which may be hinged to provide quick aluminum cover which may be hinged to access to the motor and drive assembly. provide quick access to the motor and Access may be gained by simply removing drive assembly. Covers are fastened down two of the four hood fasteners or all with a quick release hood latch. fasteners for complete removal. • Large Int
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1 6 12 10 5 2 9 15 11 14 13 LB/LD FABRA HOOD STYLE 8 4 6 10 13 11 7 5 9 3 LBP/LDP LOUVERED PENTHOUSE STYLE 4
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Unique Construction Features 1 9 FABRA HOOD STYLE - Models LD and LB have MOTOR - Permanently lubricated, sealed ball a rib-lock aluminum housing. Hood panels are bearing motors are selected to provide years of interlocked and attached to sturdy aluminum trouble-free operation. rails. (Galvanized housings are optional). 10 DRIVE ASSEMBLY - Drives are oversized 150% HINGED ACCESS - The entire hood assembly of driven horsepower. Machined cast iron 2 on models LD and LB can be hinged open for p
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Options and Accessories BIRDSCREEN - Galvanized mesh is standard. DISCONNECT SwITCHES - A wide selection Optional aluminum or stainless steel rigid wire are of NEMA rated switches are also available. available for positive electrical shutoff and safety, including: HOOD INSULATION - Hood insulation is dual- dust-tight, rainproof, and density to minimize condensation, reduce thermal corrosion-resistant. Switches transfer, and enhance sound absorption at high and may be internally or extern
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Severe Duty Option SEVERE DUTY - Specifically designed for applications with extremely high structural design load requirements. The severe duty models LDP and LBP are far superior to any centrifugal roof exhaust fan currently in the market. Designed with structural steel supports and ESD-603D louver blades, the severe duty louver enclosure (SDLE) may be used in any application which requires a fan to endure high winds with the potential of wind blown debris. The louvered housing has been
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Severe Duty Dimensions LDP - SEVERE DUTY DIMENSIONS B C D E A A LBP - SEVERE DUTY DIMENSIONS C B D E A A Damper Roof Model Cover Louver Curb Cap AB C D E Size Opening Weight* Number Thickness Thickness Thickness (square) (square) 60 7 7 5 3 1 65 17 34 ⁄8 34 ⁄8 17 ⁄8 1 ⁄4 8 10 ⁄2 375 (432) (886) (886) (448) (44) (203) (267) (170) 70 75 0.100 0.125 0.25 80 LDP (0.045) (0.056) (0.113) 7 7 5 3 1 85 19 36 ⁄8 36 ⁄8 17 ⁄8 1 ⁄4 10 12 ⁄2 400 aluminum aluminum steel (483) (934) (934) (448) (44) (254) (3
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Severe Duty Curb Installation Options OUTSIDE CURB DIMENSION 1.75 INCH (44 MM) THROAT DIMENSION 1.75 INCH (44 MM) (ROOF OPENING) Concrete CURB HEIGHT 12, 18, OR 24 INCHES 1 INCH (25 MM) INSULATION HILTI KB11, 3/8-16 X 3 ON (305, 457, or 610 MM) 12 INCH (305 MM) MAXIMUM CENTERS. MINIMUM TWO PER SIDE. ROOF OPENING 2.5 INCH (57 MM) EMBEDMENT MINIMUM CONCRETE STRENGTH OF 3000 PSI 1.75 INCH (44 MM) 2.25 INCH (57 MM) TYPICAL 4 INCH (102 MM) MOUNTING FLANGE 4 INCH (102 MM) TYPICAL TYPICAL OUTSIDE FLA
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LD/LDP-65 LD/LDP-60 LD/LDP-75 LD/LDP-70 LD/LDP 60-75 Direct Drive Size 60 and 65 LD Dimensions 0.6 27 22 140 RPM 1 13 ⁄2 (686) 3 Density 0.075 lb/ft (559) (343) 0.5 120 100 13 0.4 (330) 80 0.3 60 2 3 1 ⁄4 0.2 17 17 (51) (44) 40 (432) (432) 0.1 20 0 0.0 0 50 100 150 200 250 300 LDP Dimensions cfm 23 0 50 100 150 200 250 300 350 400 450 500 23 1 (584) 11 ⁄2 3 m /hr (584) (292) Size 70 and 75 1 0.6 13 ⁄2 RPM 140 (343) 3 Density 0.075 lb/ft 0.5 120 3 1 ⁄4 17 17 100 0.4 (44) (432) (432) 80 0
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LD/LDP-95 LD/LDP-90 LD/LDP-85 LD/LDP-80 LD/LDP 80-95 Direct Drive Size 80 and 85 LD Dimensions 0.7 27 RPM 28 160 1 3 Density 0.075 lb/ft 13 ⁄2 (686) 0.6 (711) (343) 140 0.5 120 16 100 (406) 0.4 80 0.3 4 3 60 1 ⁄4 19 19 0.2 (102) (44) 40 (483) (483) 0.1 20 0 0.0 0 100 200 300 400 500 600 LDP Dimensions cfm 25 0 200 400 600 800 1000 25 1 3 (635) 12 ⁄2 m /hr (635) (318) Size 90 and 95 1 0.9 16 ⁄2 220 RPM (419) 200 0.8 3 Density 0.075 lb/ft 180 0.7 3 160 1 ⁄4 19 19 0.6 140 (44) (483) (483)
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1725 1725 860 1140 860 1140 LD/LDP 100-120 Direct Drive Size 100 LD Dimensions 1.1 27 30 RPM 1 250 1.0 13 ⁄2 3 (686) Density 0.075 lb/ft (762) (343) 0.9 200 0.8 18 0.7 (457) 150 0.6 0.5 100 0.4 4 3 1 ⁄4 22 22 (102) 0.3 (44) (559) (559) 50 0.2 0.1 0 0.0 0 200 400 600 800 1000 1200 1400 1600 LDP Dimensions cfm 28 0 500 1000 1500 2000 2500 28 3 14 (711) m /hr (711) (356) Size 120 1 1.2 18 ⁄2 RPM (470) 3 Density 0.075 lb/ft 250 1.0 3 1 ⁄4 22 200 22 0.8 (44) (559) (559) 150 0.6 L
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1767 1534 1300 1067 833 600 1/3 hp 1/4 hp LB/LBP 10 Belt Drive LB Dimensions 1.4 39 RPM 28 1 HP 17 ⁄4 (991) 300 1.2 3 Density 0.075 lb/ft (711) (438) 250 1.0 17 200 0.8 (432) 150 0.6 1 3 ⁄4 3 100 1 ⁄4 22 0.4 22 (85) (44) (559) (559) 50 0.2 0 0.0 0 200 400 600 800 1000 1200 1400 1600 LBP Dimensions cfm 1 38 ⁄2 0 500 1000 1500 2000 2500 28 3 14 (978) m /hr (711) (356) LB-10 LBP-10 17 Hood Thickness 22 ga - (432) Cover Thickness - 0.064 (0.029) Louver Thickness - 0.081 (0.03
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1343 1170 997 825 652 480 1/2 hp 1/3 hp 1/4 hp LB/LBP 14 Belt Drive LB Dimensions 1.2 39 RPM 35 1 HP 17 ⁄2 (991) 3 Density 0.075 lb/ft 250 1.0 (889) (445) 200 0.8 18 (457) 150 0.6 100 0.4 3 4 1 ⁄4 26 26 (102) (44) (660) (660) 50 0.2 0 0.0 0 300 600 900 1200 1500 1800 2100 2400 2700 LBP Dimensions cfm 40 0 1000 2000 3000 4000 32 3 16 (1016) m /hr (813) (406) LB-14 LBP-14 17 Hood Thickness 22 ga - (432) Cover Thickness - 0.064 (0.029) Louver Thickness - 0.081 (0.036) Curb Ca
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3/4 hp 1460 1261 1062 863 664 465 2 hp 1 1/2 hp 1 hp 1/2 hp 1/3 hp 1/4 hp LB/LBP 18 Belt Drive LB Dimensions 2.5 600 39 RPM 1 40 HP 17 ⁄2 (991) 3 Density 0.075 lb/ft (1016) (445) 2.0 400 1.5 21 (533) 1.0 1 200 4 ⁄2 3 1 ⁄4 30 30 (114) (44) (762) 0.5 (762) 0 0.0 0 1000 2000 3000 4000 5000 6000 LBP Dimensions cfm 46 02 468 10 36 (1168) 3 19 m /hr X 1000 (914) (483) LB-18 LBP-18 1 24 ⁄2 Hood Thickness 22 ga - (622) Cover Thickness - 0.064 (0.029) Louver Thickness - 0.081 (
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1200 1053 906 759 612 465 1 hp 2 hp 1 1/2 hp 3/4 hp 1/2 hp 1/3 hp 1/4 hp LB/LBP 21 Belt Drive LB Dimensions 2.0 51 RPM 43 23 HP (1295) 3 Density 0.075 lb/ft (1092) (584) 400 1.5 23 300 (584) 1.0 200 3 6 1 ⁄4 30 30 0.5 (152) (44) 100 (762) (762) 0 0.0 0 1000 2000 3000 4000 5000 6000 7000 8000 LBP Dimensions cfm 0 2 4 6 8 10 12 46 36 3 19 (1168) m /hr X 1000 (914) (483) LB-21 LBP-21 1 24 ⁄2 Hood Thickness 22 ga - (622) Cover Thickness - 0.064 (0.029) Louver Thickness -
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2 hp 1 1/2 hp 799 1 hp 3/4 hp 1/2 hp 577 1/3 hp 466 1/4 hp 355 910 688 LB/LBP 24 Belt Drive LB Dimensions 1.6 51 RPM 1 1 HP 45 ⁄2 350 20 ⁄2 (1295) 1.4 3 Density 0.075 lb/ft (1156) (521) 300 1.2 250 1 1.0 23 ⁄2 (597) 200 0.8 150 0.6 3 3 6 ⁄4 1 ⁄4 34 34 100 0.4 (171) (44) (864) (864) 50 0.2 0 0.0 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 LBP Dimensions cfm 1 0246 8 10 12 14 49 ⁄2 40 3 m /hr X 1000 20 (1257) (1016) (508) LB-24 LBP-24 1 23 ⁄2 Hood Thickness 22 ga - (
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5 hp 3 hp 2 hp 1 1/2 hp 1 hp 3/4 hp 1/2 hp 1/3 hp 835 714 593 472 351 230 LB/LBP 30 Belt Drive LB Dimensions 2.0 63 RPM 50 1 29 ⁄2 (1600) HP (1270) 3 Density 0.075 lb/ft (749) 400 1.5 5 26 ⁄8 300 (676) 1.0 200 1 8 ⁄2 3 1 ⁄4 40 40 (216) 0.5 (44) (1016) (1016) 100 0 0.0 0 2 4 6 8 10 12 14 16 LBP Dimensions cfm X 1000 58 46 0 5 10 15 20 25 (1473) 23 3 (1168) m /hr X 1000 (584) LB-30 LBP-30 1 26 ⁄2 Hood Thickness 22 ga - (673) Cover Thickness - 0.064 (0.029) Louver Thick
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5 hp 3 hp 2 hp 1 1/2 hp 1 hp 3/4 hp 1/2 hp 678 586 220 494 403 311 LB/LBP 36 Belt Drive LB Dimensions 2.0 63 RPM 60 HP 27 (1600) 3 Density 0.075 lb/ft (1524) 400 (686) 1.5 5 300 32 ⁄8 (829) 1.0 200 3 9 ⁄4 3 1 ⁄4 46 0.5 46 (248) 100 (44) (1168) (1168) 0 0.0 0 2 4 6 8 10 12 14 16 18 20 LBP Dimensions cfm X 1000 0 10 20 30 3 63 51 ⁄4 3 (1600) m /hr X 1000 26 (1314) (660) LB-36 LBP-36 3 34 ⁄8 Hood Thickness 0.064 (0.029) - (873) Cover Thickness - 0.064 (0.029) Louver Thic
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3/4 hp 515 450 385 320 255 190 5 hp 3 hp 2 hp 1 1/2 hp 1 hp 1/2 hp LB/LBP 42 Belt Drive LB Dimensions 1.6 75 RPM 5 70 ⁄8 1 HP 33 ⁄2 1.4 (1905) 3 Density 0.075 lb/ft (1794) (851) 300 1.2 3 37 ⁄8 1.0 (949) 200 0.8 0.6 1 11 ⁄2 3 1 ⁄4 52 52 100 0.4 (292) (44) (1321) (1321) 0.2 0 0.0 0 2 4 6 8 10 12 14 16 18 20 22 24 LBP Dimensions cfm X 1000 1 70 ⁄2 0 1020 3040 58 (1791) 3 29 (1473) m /hr X 1000 (737) LB-42 LBP-42 1 38 ⁄4 Hood Thickness 0.064 (0.029) - (972) Cover
