Centrifugal Roof Exhaust Fans
Series L
Low Silhouette
April
2016
Series L
Centrifugal Roof Exhaust Fans
low silhouette, centrifugal roof
exhaust fans provide the industry’s broadest
performance and durability for general
Series L,
clean air applications. These products undergo
life testing, assuring these fans will
provide years of reliable performance.
extensive
Typical Installations
Benefits
• Educational Facilities
• Quick motor and drive access
• Warehouses
• Excellent weather resistance
• Office Buildings
• Certified for severe duty
applications
• Shopping Centers
Table of Contents
2
Unique Construction Features . . . . . . . . . . . . . . . .3-5
Severe Duty Dimensions and Installation . . . . .11-12
Standard Installation . . . . . . . . . . . . . . . . . . . . . . . . 6
Dimensions
Severe Duty Option . . . . . . . . . . . . . . . . . . . . . . . . . 7
LD/LDP Direct Drive . . . . . . . . . . . . . . . . . . . .13-15
Vari-Green Motor and Control Options . . . . . . . . .8-9
LB/LBP Belt Drive . . . . . . . . . . . . . . . . . . . . . .16-25
Options and Accessories . . . . . . . . . . . . . . . . . . . . 10
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . .26-27
Unique Construction Features
Fabra Hood Style
• Hinged Hood - All sizes feature a hood which may
be hinged to provide quick access to the motor and
drive assembly. Access may be gained by simply
removing two of the four hood fasteners or all
fasteners for complete removal.
Louvered Penthouse Style
• Hinged Cover - All sizes feature an aluminum cover
which may be hinged to provide quick access to the
motor and drive assembly. Covers are fastened down
with a quick release hood latch.
• Large Interior Dimensions - All sizes allow complete
accessibility. Interior dimensions offer clearance for
inspection, cleaning, or maintenance of the motor,
wheel, belt(s), and drives.
• Large Interior Dimensions - All sizes allow complete
accessibility from above. Interior dimensions offer
clearance for inspection, cleaning, or maintenance of
the motor, wheel, belt(s), and drives.
• Strength & Weather Resistance - The hood is
designed with arched panels manufactured of
heavy gauge, precision roll formed steel with
interlocking edges. Each interlocking rib creates
a tight, weather resistant seal. Heavy gauge steel
support members provide structural strength.
• Strength & Weather Resistant - Each unit features
storm resistant aluminum louver blades with mitered
corners. For decades, our storm resistant blades
have proven highly effective. Each sturdy extruded
aluminum louver blade has a material thickness of
0.080 inches.
Greenheck’s interlocking rib design combines four
material thicknesses with I-beam design principles
producing a hood far superior in strength to
conventional designs (an important feature in high
wind and snow load regions).
Greenheck’s louvered penthouse hoods feature heavy
gauge extruded aluminum louvers with mitered corners
for a clean, finished appearance and weather resistant
construction.
Formed channels adjacent to
the ribs provide water drainage
to ensure weather tightness.
Hoods are available in
galvanized steel, coated steel,
or aluminum construction.
Greenheck Fan Corporation certifies the
models LD, LDP, LB, and LBP shown
herein are licensed to bear the AMCA seal.
The ratings shown are based on tests and
procedures performed in accordance with
AMCA Publication 211 and AMCA Publication
311 and comply with the requirements of the
AMCA Certified Ratings Program.
The interior vertical edge of the
curb cap forms the throat and
weathershield. Each corner
is also shielded to prevent
leakage.
Penthouses are available in
aluminum for lasting durability
and appearance.
*UL is optional and must be specified.
Models LD, LDP, LB, and LBP are
listed for electrical (UL/cUL 705)
File no. E40001.
3
Unique Construction Features
Fabra Hood Style
1
1
9
6
2
12
10
13
11
5
2
8
LD
9
15
Vari-Green Motor
11
14
13
4
LB
8
13
9
4
6
3
13
10
11
LDP
7
Vari-Green Motor
9
5
Louvered
Penthouse Style
3
LBP
4
Unique Construction Features
Standard Construction Features
1
Fabra Hood
Style
Models LD and LB have a rib-lock galvanized housing. Hood panels are interlocked and attached
to sturdy galvanized rails. (Aluminum housings are optional).
2
Hinged
Access
The entire hood assembly on models LD and LB can be hinged open for access to the internal fan
components.
3
Louvered
Penthouse
Models LDP and LBP penthouse style housings are constructed of heavy extruded aluminum
louvers with mitered and welded corners.
4
Hood Cover Models LDP and LBP aluminum hood covers are hinged and removable for access.
5
Drive Frame
Constructed from heavy gauge galvanized steel. Belt adjustment is accomplished by loosening
fasteners, sliding the motor plate, and retightening fasteners.
6
Fan Shaft
Precisely sized, ground, and polished so the first critical speed is at least 25% over the maximum
operating speed. Close tolerances between the shaft and bearing result in longer bearing life.
7
Bearings
100% factory tested and designed specifically for air handling applications with a minimum L10 life
in excess of 100,000 hours (L50 average life of 500,000 hours).
8
Curb Cap
Curb cap has prepunched mounting holes to ensure correct attachment to the curb.
9
Motor
All motors are carefully matched to the fan load to provide years of trouble-free operation.
10
Drive
Assembly
Drives are oversized 150% of driven horsepower. Machined cast iron pulleys are factory set to the
required RPM and are adjustable for final system balancing. Belts are static free and oil resistant.
11
Wheel
An aluminum, backward inclined, non-overloading, centrifugal wheel is utilized to deliver maximum
efficiency. Each wheel is statically and dynamically balanced.
12
Vibration
Isolators
Support the drive assembly and wheel without steel to steel contact providing long life and
quiet operation.
13
Birdscreen
Galvanized rigid wire protects the fan’s discharge from birds or small objects. (Aluminum birdscreen
is optional).
14
Windband
Lower windband assembly ensures weathertight and rigid unit construction.
15
Disconnect
Switch
NEMA-1 switch is factory mounted. Wiring from the motor to the disconnect enclosure is provided
as standard. All wiring and electrical components comply with the National Electric Codes (NEC)
and are UL Listed or Recognized.
Conduit
Chase
A large diameter conduit for installing electrical wiring through the curb cap into the motor
compartment. (Not shown)
5
Standard Installation
Models LB, LD, LBP, and LDP exhaust fans are designed
to meet the needs of general clean air applications. Tests
have been conducted to ensure safe and reliable fans
capable of withstanding normal exhaust conditions.
When roofing materials extend to the top of the curb, roof
curbs should be 11⁄2 in. (38 mm) (3/4 in. (19 mm) on
a side) less than the unit curb cap to allow for roofing and
flashing.
For recommended duct size, damper size, and roof
opening dimensions, refer to CAPS or the performance
data pages.
Installation must include a means for inspecting,
cleaning, and servicing the exhaust fan.
Due to the varying airstreams encountered in
commercial ventilation, system designers must be
aware of national, state, and local codes and guidelines
governing these installations. Local code authorities
should be consulted before proceeding with any
ventilation project.
6
8 to 12 in.
(203 to 305 mm)
3/4 in.
(19 mm)
Damper
1 1/4 in.
(32 mm)
Recommended
Duct and
Damper Size
Recommended
Roof Opening
1 1/4 in.
(32 mm)
Severe Duty Option
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. The LBP/LDP 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 tested in accordance with the following
Miami-Dade test protocols:
• Large Missile Impact Test - TAS-201-94
• Uniform Static Air Pressure - TAS-202-94
• Uniform Cyclic Wind Loading - TAS-203-94
To meet the above protocols, the severe duty fan must
be mounted on a severe duty roof curb, which is attached
directly to the building structure. Maximum design load is
140 psf.
NOTICE OF ACCEPTANCE
NUMBER 14-0514.07
Available on sizes
• LDP 60 though 120
• LBP 10 through 30
Weights and dimensions will vary from standard LDP and
LBP construction.
Severe Duty Installation
Models LDP and LBP severe duty exhaust fans
are designed to meet the needs of general clean
air applications. Tests have been conducted to
ensure safe, rugged and reliable fans capable of
withstanding severe exhaust conditions.
Installation must include a means for inspecting,
cleaning, and servicing the exhaust fan.
Due to the varying airstreams encountered in
commercial ventilation, system designers must
be aware of national, state, and local codes and
guidelines governing these installations. Local
code authorities should be consulted before
proceeding with any ventilation project.
3/4 INCH (19 MM)
THROAT DIMENSION
(ROOF OPENING)
1-3/4 INCH (44 MM)
1-3/4 INCH (44 MM)
OUTSIDE CURB DIMENSION
12, 18 OR 24 INCHES
1 INCH (25 MM) INSULATION
(305, 457, 610 MM)
ROOF OPENING
4 IN.
4 IN.
(102 MM)
(102 MM)
CORRUGATED
ROOF DECK
CONCRETE
ROOF TRUSS
RECOMMENDED
DUCT & DAMPER SIZE
1-1/4 INCH (32 MM)
2-1/2 INCH (64 MM)
4 IN.
(102 MM)
6 INCH x 3 INCH
(152 MM x 76 MM)
2-1/2 INCH (64 MM)
1-3/4 INCH
(44 MM)
4 IN
(102 MM)
STEEL MOUNTING ANGLE
(12 GAUGE MINIMUM)
7
Vari-Green® Motor Option
Model LD/LDP
Features
Greenheck’s electronically commutated (EC)
Vari-Green (VG) motor combines motor
technology, controllability and energy-efficiency
into one single low maintenance unit and is the
industry’s first fully controllable motor. When combined
with Greenheck’s Series L fans, all the CFM and static
pressure ranges of a belt drive can be attained with the
benefits of a direct drive.
1. Dial on Motor Control - a potentiometer (dial on
motor control) is mounted on the motor for easy
speed adjustment for system balance. Simply turn
the dial. There are no belts and pulleys to adjust.
2. Control Wire Inputs - the motor accepts a
0-10V DC signal from Building Automated
Systems or other controls to adjust motor
speed.
Motor Information
HP
1/6
1/4
1/2
RPM
1725
1725
1725
Voltage
115, 208-240, 277
115, 208-240, 277
115, 208-240, 277
HZ
50/60
50/60
50/60
2
1
Benefits
Note: As motor speed is turned down, efficiency stays
high as compared to an AC motor that decreases
dramatically.
• Operates cooler than a standard AC motor at lower
RPMs. A cooler motor has longer motor life and
reduces energy consumption.
• 80% usable RPM turndown versus 30%, see Motor
Turndown Comparison chart at right.
• Series L fans with Vari-Green motors can provide
all the CFM and static pressure ranges of a
comparable belt drive.
• Maintenance costs are reduced as there are no
belts or bearings to replace and no pulleys to adjust.
• Direct drive fans are often preferred where
maintenance access is difficult.
• Provides a solution for demand controlled
ventilation applications.
Comparisons: Belt, Direct Drive with PSC
and Direct Drive with Vari-Green
Motor Turndown Comparison
50%
500
100%
LD-120
with PSC
400
Not recommended
300
EEnergy
S
Savings
LB-14
Single Phase*
200
LD-120 with
100
0
0
350
FAN SPEED (RPM)
1750
* GB is a belt driven fan
The length of each curve indicates the practical turndown range.
Data is for 1/2 hp motors with load of 0.35 Bhp at full speed
Constant Volume Life Cycle Analysis
Three Year Cost Comparison
$2,000
1,750
1,500
1,250
1,000
Vari-Green Advantages
750
•
•
•
•
500
Initial cost is similar to a belt drive
Lower operating cost
No maintenance, no belts, pulleys or bearings
Easy RPM adjustment
75%
600
INPUT POWER (WATTS)
Operates on AC power that’s converted to DC—
providing a more efficient motor operation as
compared to an AC operation.
• The motor can attain up to 85% efficiency and
reduce energy consumption.
• Watt savings of 30-70% depending on RPM.
250
$0
CUBELB121
14
CUELD121-A5
120-A5
CUELD121-VG
120-VG
Initial Cost
Maintenance cost over three years
Operating cost over three years
Analysis is based on operating costs for a period of three years where
the fans operate continuously at 1725 rpm, 24/7, with an energy rate
of $0.10/kWh. Maintenance on the LB-14 is estimated at $65/yr.
Note: Example is based on a relative cost. Use and installation
variables may produce different results.
8
Vari-Green® Control Options
Vari-Green® Controls
Transformer - Provides 24V power from the existing
line voltage at the fan to the Vari-Green motor and
controls. Dual voltage primary (120/240V) transformer
provided with the fan.
Remote Dial - Allows for remote, manual airflow
adjustments. Wall plate with dial may be mounted in a
standard 2x4 inch electrical junction box.
Two Speed Control with Integral Transformer
Control allows motor to be set at two independent
speeds (high or low). Meets minimum airflow
requirements with the ability to bump up to high
speed in an emergency or meet maximum airflow
requirements, or reset down to low for energy
conservation.
Constant Pressure Control - Control a fan with
a Vari-Green motor to maintain either a constant
static pressure (variable volume) or constant velocity
pressure (constant airflow). The constant pressure
control is available with an integral or remote pressure
transducer which provides excellent installation
flexibility. Inputs include remote override (digital, dry
contact) and remote setpoint (analog, 0-10V). Outputs
include fan speed (0-10V), pressure/airflow reference
(analog, 0-10V), and relay output (digital, 0.5A rating).
Contact fans@greenheck.com for more information.
Daily Operating Comparison:
Variable Volume and Constant Volume
% of Operation
Applications requiring constant pressure or variable
volume can utilize Series L fans with Vari-Green
motors and Vari-Green
Variable Volume
controls. Demand
Operating
Analysis
Variable VolumeCost
vs. Constant
Volume
control ventilation
$ 2,000
systems reduce the
1,750
amount of energy used
1,500
by decreasing the
1,250
speed of the fan when
demand is low. This in
1,000
turn lessens the amount
750
of conditioned air
500
exhausted and further
250
reduces total operating
$0
costs associated with
Constant
Variable
Volume
Volume
air conditioning and
Heating
Cost
heating in multistoried
Cooling Cost
buildings such as
Fan Operating Cost
hotels, multifamily
Example of potential savings
complexes, institutional
based on a northeast city in
facilities, and high rise
the USA using Vari-Green
commercial buildings.
components for variable volume.
The Vari-Green constant pressure control is
preprogrammed and easy to install for applications
that include venting dryers, bathrooms, residential type
kitchen space or industrial process exhaust.
Hypothetical (Hotel Bathroom)
Variable Volume - Load Shape
100
80$$$$$$$$$$$$$$$$$$$$$$$$
60$$$$$$$$$$$$$$$$$$$$$$$$
40$$$$$$$$$$$$$$$$$$$$$$$$
20$$$$$$$$$$$$$$$$$$$$$$$$
0%$$$$$$$$$$$$$$$$$$$$$$$$
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time of Day
Series 1
Demand-controlled ventilation offers significant energy savings by
exhausting only the necessary amount of air throughout the day.
% of Operation
Demand Control Ventilation for
Multistory Buildings
Constant Volume - Load Shape
100
80
60
40
20
0%
1 2 3 4
Series 2
5 6
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Time of Day
Note: A standard VFD compatible motor can also function within a
Variable Volume system.
• Constant Pressure Applications – Apartments,
condos, hotels; clothes dryers, residential kitchens
and bathrooms.
• Constant Airflow Applications – Filtered or other
variable resistance systems. The Constant Airflow
control is available with Greenheck’s Airflow
Measuring Station (AMS) for airflow sampling
Air Quality – VOC - Control a Vari-Green motor via
changes in volatile organic compounds (VOC’s).
VOC’s are gasses that are emitted from humans,
building materials, perfumes, foods, and furniture
off-gassing. Range is 0-2000 CO2 PPM equivalent.
• Institutional facilities – Schools, court house,
hospitals; bathrooms, waiting rooms, cafeteria.
• Commercial buildings – Office space, conference
rooms, bathrooms, break room.
Air Quality – Temperature and Humidity - Control
Vari-Green motor via changes in temperature, humidity,
or both. Range is 15 to 130°F and 0 to 100% relative
humidity.
• Multifamily structures - Apartments, condos, hotels;
bathrooms, utility rooms.
• Commercial buildings - Office buildings, office space,
conference rooms, utility rooms, bathrooms.
9
Options and Accessories
BIRDSCREEN - Galvanized mesh is standard.
Optional aluminum or stainless steel rigid wire are also
available.
HOOD INSULATION - Hood insulation is dual-density
to minimize condensation, reduce thermal transfer,
and enhance sound absorption at high and low
frequencies.
LIFTING LUGS - Four heavy gauge steel brackets are
available to provide lifting points when raising the fan
to the roof.
TIE DOWN POINTS - Four heavy gauge steel
brackets are available to secure the fan in heavy wind
applications. Cables and anchors by others.
COATINGS - Additional information on Greenheck
coatings can be found in our Performance Coatings
for Commercial & Industrial Fans and our Product
Application Guide, Performance Coatings for Ventilation
Products. A wide variety of coatings and colors are
available in two categories:
Decorative coatings – Standard colors are available.
Protective coatings – Electrostatic applied powder
coatings are available to protect against most
environments.
10
1
0
DISCONNECT SWITCHES A wide selection of NEMA rated
switches are available for positive
electrical shutoff and safety,
including: dust-tight, rainproof, and
corrosion-resistant. Switches may
be internally or externally mounted.
SPEED CONTROLLERS - Available for use with
shaded pole and permanent split capacitor (PSC) open
motors on models LD and LDP fans. They provide an
economical means of system balancing with direct
drive fans.
CURB EXTENSIONS - Extensions raise the fan
discharge above the roof line and provide an
accessible mounting location for dampers.
Insect screen bases
constructed with
a removable
fine mesh are
recommended for
applications where insect
entry must be prevented. Curb
extensions are not available with LDP and
LBP severe duty construction models.
DAMPERS - Designed to
prevent outside air from
entering back into the
building when fan is off.
Options include gravity and
motorized dampers. Damper
sizes are shown on each
performance data page.
ROOF CURBS - Prefabricated roof curbs reduce
installation time and costs by ensuring compatibility
between the fan, curb and roof opening. All curbs
are insulated with fiberglass. A
wide variety of roof curbs
are available including
flanged, pitched and
sound-absorbing.
CURB SEAL - Rubber seal between fan and curb to
ensure proper sealing when attached to a curb.
MOTOR STARTERS
The fundamental
function of a motor
starter is to protect the
motor from damage
that can occur from
overheating. With
a Greenheck motor
starter you will be
provided with the
best motor protection
available.
Severe Duty Dimensions
LDP - SEVERE DUTY DIMENSIONS
C
B
D
E
A
Model
Number
A
A
B
C
D
E
Damper
Size
(square)
Roof
Opening
(square)
Weight*
Cover
Thickness
Louver
Thickness
Curb Cap
Thickness
60
65
17
347⁄8
347⁄8
175⁄8
13⁄4
8
101⁄2
375
(432)
(886)
(886)
(448)
(44)
(203)
(267)
(170)
70
75
0.25
0.125
0.100
80
LDP
(0.045)
(0.056)
(0.113)
85
19
367⁄8
367⁄8
175⁄8
13⁄4
10
121⁄2
400
aluminum
aluminum
steel
(483)
(934)
(934)
(448)
(44)
(254)
(318)
(181)
90
95
100
397⁄8
397⁄8
195⁄8
13⁄4
12
141⁄2
425
22
(559)
(1013)
(1013)
(498)
(44)
(305)
(368)
(193)
120
All dimensions are in inches (millimeters). Weight in pounds (kilograms). *Weight shown is the largest cataloged Open Drip Proof motor.
LBP - SEVERE DUTY DIMENSIONS
B
C
D
E
A
Model
Number
10
14
18
LBP
21
24
30
A
22
397⁄8
503⁄8
181⁄8
13⁄4
Damper
Size
(square)
12
(559)
(1013)
(1280)
(460)
(44)
(305)
A
B
C
D
E
Roof
Opening
(square)
101⁄2
(267)
Weight*
Louver
Thickness
Curb Cap
Thickness
550
(249)
26
437⁄8
517⁄8
181⁄8
13⁄4
16
101⁄2
550
(660)
(1114)
(1318)
(460)
(44)
(406)
(267)
(249)
101⁄2
550
30
477⁄8
577⁄8
245⁄8
13⁄4
18
(267)
(249)
(762)
(1216)
(1470)
(625)
(44)
(457)
10 ⁄2
700
(267)
(318)
1
Cover
Thickness
34
517⁄8
617⁄8
245⁄8
13⁄4
24
101⁄2
800
(864)
(1318)
(1572)
(625)
(44)
(610)
(267)
(363)
40
577⁄8
697⁄8
271⁄4
13⁄4
30
101⁄2
950
(1016)
(1470)
(1775)
(692)
(44)
(762)
(267)
(431)
0.100
0.125
0.25
(0.045)
(0.056)
(0.113)
aluminum
aluminum
steel
All dimensions are in inches (millimeters). Weight in pounds (kilograms). *Weight shown is the largest cataloged Open Drip Proof motor.
11
Severe Duty Curb
Installation Options
OUTSIDE CURB DIMENSION
1.75 INCH (44 MM)
THROAT DIMENSION
(ROOF OPENING)
1.75 INCH (44 MM)
Concrete
CURB HEIGHT
12, 18, OR 24 INCHES
1 INCH (25 MM) INSULATION
HILTI KB11, 3/8-16 X 3 ON
12 INCH (305 MM) MAXIMUM CENTERS.
MINIMUM TWO PER SIDE.
(305, 457, or 610 MM)
ROOF OPENING
2.5 INCH (57 MM)
EMBEDMENT
MINIMUM CONCRETE
STRENGTH OF 3000 PSI
1.75 INCH (44 MM)
4 INCH (102 MM)
MOUNTING FLANGE
TYPICAL
2.25 INCH (57 MM) TYPICAL
4 INCH (102 MM) TYPICAL
OUTSIDE FLANGE DIMENSION
THROAT DIMENSION AND ROOF OPENING EQUAL OUTSIDE CURB DIMENSION MINUS 3.5 INCHES (89 MM)
OUTSIDE CURB DIMENSION
1.75 INCH (44 MM)
THROAT DIMENSION
(ROOF OPENING)
1.75 INCH (44 MM)
Steel
CURB HEIGHT
12, 18, OR 24 INCHES
CORNER TOP VIEW
1 INCH (25 MM) INSULATION
(305, 457, 610 MM)
HILTI KWIK-FLEX 12-14 SCREW, NO. 3 POINT.
THREE (3) FASTENERS EACH CORNER AND
MAXIMUM OF 4.5 INCHES (114 mm) SPACING;
ADD ADDITIONAL FASTENERS TO SATISFY.
4 INCH (102 MM)
MOUNTING FLANGE
TYPICAL
ROOF OPENING
CORRUGATED
ROOF DECK
6 X 3 INCH (152 x 76 mm)
STEEL MOUNTING ANGLE
(12 GAUGE MINIMUM)
ROOF TRUSS
1.75 INCH (44 MM)
2.25 INCH (57 MM) TYPICAL
4 INCH (102 MM) TYPICAL
OUTSIDE FLANGE DIMENSION
THROAT DIMENSION AND ROOF OPENING EQUAL OUTSIDE CURB DIMENSION MINUS 3.5 INCHES (89 MM)
Model Number Code
The model number system is designed to completely identify the fan. The correct code letters must be
specified to designate belt or direct drive. The remainder of the model number is determined by the size
and performance selected from the following pages.
LB - 30 - VG/7
Model
LD - Fabra Hood Direct Drive
LB - Fabra Hood Belt Drive
LDP - Louvered Penthouse Direct Drive
LBP - Louvered Penthouse Belt Drive
Fan Size
LD/LDP 60 thru 120
LB/LBP 10 thru 54
12
VG = Vari-Green (Direct Drive only)
Motor hp (Belt Drive only)
6 = 1/6 10 = 1
50 = 5
4 = 1/4 15 = 11⁄2 75 = 71⁄2
3 = 1/3 20 = 2
100 = 10
5 = 1/2 30 = 3
150 = 15
7 = 3/4
Motor RPM (Direct Drive only)
A = 1725
B = 1140
C = 860
International
(see CAPS for Performance)
K = 950 RPM J = 1475 RPM
12
LD/LDP 60-75
Direct Drive
LD Dimensions
Size 60 and 65
0.6
27
131⁄2
(584)
13 ⁄8
Static Pressure Pa
(340)
(44)
0.5
120
3
13⁄4
RPM
Density 0.075 lb/ft3
140
(686)
(343)
17
17
(432)
(432)
2
(51)
100
80
60
40
Static Pressure in. wg
23
0
23
111⁄2
/L
DP
LD
-6
5
/L
DP
-6
0
0.2
0.0
0
50
100
150
200
250
300
cfm
23
(584)
LD
0.3
0.1
20
LDP Dimensions
0.4
0
(584)
50
100
150
200
250
300
350
400
450
500
3
m /hr
(292)
Size 70 and 75
14
0.6
RPM
Density 0.075 lb/ft3
140
(356)
0.5
17
17
(432)
(432)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LD 60 thru LD 75
24 ga
0.064 (0.029)
8 (203)
101⁄2 (267)
Galvanized
37 (17)
100
80
60
40
LDP 60 thru LDP 75
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
8 (203)
101⁄2 (267)
Aluminum
49 (22)
Static Pressure in. wg
1 ⁄4
(44)
Static Pressure Pa
120
3
LD
0.4
/L
DP
-7
0
0.3
LD
/L
DP
-7
5
0.2
0.1
20
0.0
0
0
50
100
150
200
250
300
350
400
cfm
0
100
200
300
400
500
600
3
m /hr
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LDP dimensions.
Model
Number
LD/LDP-60
Motor
HP
1/60
Fan
RPM
1590*
CFM / Static Pressure in Inches wg
Watts
51 W
LD/LDP-65
1/30
1680*
70 W
LD/LDP-70
1/30
1665*
73 W
LD/LDP-75
1/25
1620*
79 W
CFM
0
0.1
0.125
0.2
0.25
0.3
202
171
164
139
119
97
0.375
0.4
Sones
4.8
4.3
4.3
4.0
3.8
3.6
CFM
274
245
238
208
187
165
129
112
Sones
5.6
5.3
5.2
5.0
5.1
5.1
5.1
5.2
0.45
0.5
CFM
360
324
314
282
257
231
188
171
132
Sones
6.4
6.0
5.9
5.5
5.4
5.3
5.2
5.1
5.0
CFM
400
360
351
317
290
264
222
206
168
122
Sones
5.8
5.2
5.1
4.9
4.7
4.5
4.2
4.1
4.0
3.8
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. *Speed (RPM) shown is nominal. Performance is based on actual speed of test. 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.
13
LD/LDP 80-95
Direct Drive VG
LD Dimensions
Size 80 and 85
27
(343)
0.7
Static Pressure Pa
16
13⁄4
19
(44)
4
19
(483)
(102)
140
112
84
(483)
Static Pressure in. wg
168
(406)
RPM
Max System Curve
Density 0.075
0.8
196
56
THIS
SYS
TEM
CUR
VE
(711)
(686)
0.6
0.5
0.4
TO
THE
LEF
T OF
131⁄2
0.3
0.2
0.1
0
0.0
0
/L
DP
-8
5
/L
DP
-8
0
DO
28
LD
LD
NO
TS
EL
EC
T
28
LDP Dimensions
80
160
240
25
121⁄2
(635)
320
400
480
(635)
0
160
320
480
640
800
Size 90 and 95
17
RPM
Max System Curve
Density 0.075
112
84
CURV
E
0.5
0.4
0.3
-9
5
90
0.0
0
DP
P-
0.1
0
/L
D
0.2
28
LD
/L
56
0.6
LD
LDP 80 thru LDP 95
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
10 (254)
121⁄2 (318)
Aluminum
63 (29)
140
0.7
YSTE
M
168
THIS
S
(483)
0.8
TO
THE
LEFT
OF
(483)
196
NO
TS
ELE
CT
(44)
0.9
DO
19
224
Static Pressure in. wg
19
Static Pressure Pa
13⁄4
Weight*
960
3
(432)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
640
m /hr
(318)
LD 80 thru LD 95
24 ga
0.064 (0.029)
10 (254)
121⁄2 (318)
Galvanized
45 (20)
560
CFM
25
200
400
600
800
1000
1200
CFM
0
250
500
750
1000
1250
1500
1750
2000
3
m /hr
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LDP dimensions.
Model
Number
LD/LDP-80
Motor
HP
1/20
VG
HP
1/6
Fan
RPM
1550*
115 W
LD/LDP-85
1/20
1/6
1500*
120 W
LD/LDP-90
1/15
1/6
1550*
92 W
LD/LDP-95
1/8
1/6
1550*
CFM / Static Pressure in Inches wg
Watts
160 W
CFM
0
0.1
0.125
0.2
0.25
0.3
0.375
0.5
481
426
413
372
342
310
258
165
Sones
8.8
8.2
8.0
7.8
7.6
7.4
7.2
7.5
CFM
576
507
490
440
403
360
291
182
Sones
8.6
8.1
8.0
7.7
7.3
7.1
7.0
7.8
CFM
819
735
714
654
608
562
485
361
0.6
0.625
Sones
8.8
8.6
8.5
8.4
8.3
8.1
7.8
7.9
CFM
1052
965
942
870
825
780
695
552
430
396
Sones
11.8
11.2
11.1
10.8
10.4
10.2
10.0
9.8
10.1
10.2
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. *Speed (RPM) shown is nominal. Performance is based on actual speed of test. 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.
14
LD/LDP 100-120
Direct Drive VG
LD Dimensions
LD/LDP-100
131⁄2
1.1
(686)
(343)
1.0
(559)
(559)
4
(102)
110
0.7
0.6
0.5
0.4
0.3
55
0.2
0.1
LDP Dimensions
TO
22
0.8
0
0.0
0
11
SE
LE
CT
(44)
22
165
Static Pressure in. wg
(591)
25
17
Static Pressure Pa
231⁄4
TH
EL
EF
TO
FT
HIS
SYS
TEM
CUR
VE
0.9
220
40
N
OT
(800)
13⁄4
RPM
Max System Curve
Density 0.075
27
311⁄2
86
0
DO
200
400
600
800
28
14
(711)
1000
1200
0
(711)
540
1080
1620
2160
2700
3
191⁄4
LD/LDP-120
(489)
RPM
Max System Curve
Density 0.075
1.2
1.0
TO
TH
EL
EFT
OF
THI
SS
YST
EM
0.6
0.4
60
NO
T
0.2
25
120
0.8
17
LD 100 thru LD 120 LDP 100 thru LDP 120
24 ga
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
0.064 (0.029)
12 (305)
12 (305)
141⁄2 (368)
141⁄2 (368)
Aluminum
Galvanized
82 (37)
57 (26)
180
CUR
V
E
240
SE
LE
CT
22
(559)
Static Pressure in. wg
22
(559)
Static Pressure Pa
13⁄4
(44)
Weight*
1600
m /hr
(356)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
1400
CFM
28
11
40
86
0
DO
0
0.0
0
200
400
600
800
1000
1200
1400
1600
1800
2000
CFM
0
680
1360
2040
2720
3
m /hr
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LDP dimensions.
Model
Number
Motor
HP
VG
HP
Fan
RPM
LD/LDP-100-C
1/8
1/4
860
LD/LDP-100-B
1/6
1/4
1140
LD/LDP-100-A
1/4
1/4
1725
LD/LDP-120-C
1/8
1/4
860
LD/LDP-120-B
1/6
1/4
1140
LD/LDP-120-A
1/4
1/2
1725
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
766
0.022
6.3
1016
0.051
12.0
1538
0.18
16.2
0.125
568
0.029
5.3
879
0.065
11.0
1457
0.21
14.8
0.2
407
0.028
5.1
780
0.068
10.6
1399
0.22
14.4
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
921
0.03
6.6
1221
0.071
11.9
1848
0.25
21
702
0.041
5.3
1072
0.086
10.9
1762
0.28
19.6
536
0.043
5.1
960
0.094
10.3
1693
0.29
19.4
CFM / Static Pressure in Inches wg
0.25
0.375
0.5
0.625
0.75
0.875
0.9
709
0.068
10.4
1360
0.22
14.2
493
0.066
10.4
1256
0.23
14.3
1142
0.24
14.2
1024
0.24
14.8
891
0.23
15.3
724
0.23
15.9
678
0.22
16.1
886
0.096
10.0
1652
0.29
19.3
664
0.099
9.2
1540
0.31
18.6
1412
0.33
18.4
1286
0.34
18.2
1142
0.35
18.2
979
0.34
18.3
940
0.33
18.3
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.
15
LB/LBP 10
Belt Drive
LB Dimensions
1.4
(711)
1.2
22
(44)
(559)
(559)
(85)
100
50
0
LBP Dimensions
(711)
SY
ST
EM
OF
TH
IS
LE
FT
0.4
0.2
22
0.0
0
T
NO
10
SE
67
83
60
3
0
200
0
400
600
800
1000
1200
1400
1600
500
1000
1500
2000
2500
3
m /hr
(356)
(432)
(559)
00
(978)
17
13⁄4
34
13
cfm
381⁄2
14
15
E
0.6
DO
28
67
TH
22
17
T
1 ⁄4
150
0.8
LE
C
3
31⁄4
1.0
TO
Static Pressure Pa
(432)
200
Static Pressure in. wg
(438)
250
RPM
HP
Density 0.075 lb/ft3
p
p
300
17
(44)
3h
4h
(991)
CU
RV
E
17 ⁄4
1
1/
1/
39
28
22
(559)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-10
22 ga
0.064 (0.029)
12 (305)
141⁄2 (368)
Galvanized
56 (25)
LBP-10
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
12 (305)
141⁄2 (368)
Aluminum
99 (45)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
600
712
937
1049
LB/LBP-10-4
1/4
1162
1274
1386
1499
1611
1689
LB/LBP-10-3
1/3
1767
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
539
0.013
3.0
639
0.021
3.6
841
0.048
5.1
942
0.067
5.9
1043
0.091
6.9
1144
0.12
8.0
1244
0.15
9.2
1346
0.19
10.0
1446
0.24
11.2
1516
0.28
12.2
1587
0.32
13.5
0.125
351
0.014
1.6
500
0.024
2.3
746
0.053
4.3
855
0.073
5.3
963
0.097
6.3
1070
0.13
7.5
1177
0.16
8.8
1283
0.2
9.8
1388
0.25
10.9
1461
0.29
11.9
1533
0.33
13.0
0.25
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
0.75
0.875
1
1.125
MAX. BHP AT A GIVEN RPM - (rpm/2476)3
MAXIMUM FRPM = 1767
TIP SPEED = rpm x 2.913
MAX. MOTOR FRAME SIZE = 56
623
0.054
3.6
759
0.076
4.7
887
0.103
5.9
1004
0.13
7.1
1114
0.17
8.4
1224
0.21
9.5
1331
0.26
10.7
1406
0.3
11.6
1480
0.34
12.6
625
0.075
4.2
780
0.103
5.4
917
0.14
6.8
1047
0.18
8.2
1168
0.22
9.3
1280
0.27
10.4
1356
0.31
11.3
1432
0.35
12.2
618
0.099
4.7
818
0.14
6.3
953
0.18
7.9
1093
0.22
8.8
1220
0.28
10.1
1304
0.32
11.0
1385
0.36
11.9
861
0.17
7.3
1006
0.22
8.3
1142
0.28
9.5
1237
0.32
10.6
1327
0.36
11.7
910
0.22
7.8
1064
0.28
9.0
1158
0.32
9.9
1254
0.36
11.0
970
0.27
8.5
1087
0.32
9.5
1182
0.36
10.5
980
0.31
8.9
1112
0.36
10.1
997
0.36
9.5
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.
16
LB/LBP 14
Belt Drive
LB Dimensions
3
250
OF
TH
IS
EF
T
EL
0
0.0
0
TH
TO
0
300
48
(813)
N
600
900
1200
1500
1800
2100
2400
2700
cfm
40
16
2
O
T
0.2
DO
32
43
50
LBP Dimensions
70
(660)
0.4
(102)
5
(660)
100
82
(44)
26
0.6
RPM
HP
Density 0.075 lb/ft3
hp
65
26
2
7
4
13⁄4
150
hp
0.8
1/
11
(457)
200
hp
13
18
4
99
Static Pressure Pa
(445)
1/
1.0
S YS
TEM
C
1/
(991)
SE
LE
CT
(889)
Static Pressure in. wg
17 ⁄2
1
URV
E
1.2
39
35
0
1000
2000
(1016)
3000
4000
3
m /hr
(406)
17
(432)
13⁄4
26
26
(44)
(660)
(660)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-14
22 ga
0.064 (0.029)
16 (406)
181⁄2 (470)
Galvanized
81 (37)
LBP-14
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
16 (406)
181⁄2 (470)
Aluminum
116 (53)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
480
564
731
LB/LBP-14-4
1/4
815
899
982
1066
1118
LB/LBP-14-3
1/3
1170
1257
LB/LBP-14-5
1/2
1343
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
903
0.022
4.1
1061
0.035
4.7
1375
0.077
5.9
1533
0.11
6.7
1690
0.14
7.5
1847
0.19
8.5
2004
0.24
9.8
2102
0.27
10.7
2200
0.31
11.5
2364
0.39
12.9
2525
0.47
14.4
0.125
614
0.025
3.2
848
0.041
4.2
1231
0.086
5.6
1402
0.12
6.4
1574
0.15
7.3
1743
0.2
8.4
1912
0.25
9.7
2016
0.28
10.6
2120
0.32
11.3
2290
0.4
12.7
2456
0.49
14.1
0.25
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
0.75
0.875
1
1.125
MAX. BHP AT A GIVEN RPM - (rpm/1639)3
MAXIMUM FRPM = 1343
TIP SPEED = rpm x 3.829
MAX. MOTOR FRAME SIZE = 56
1024
0.089
5.1
1241
0.12
5.9
1439
0.16
6.9
1629
0.21
8
1807
0.26
9.4
1913
0.3
10.3
2019
0.34
11.1
2197
0.42
12.5
2372
0.51
13.8
1013
0.12
5.4
1264
0.17
6.4
1482
0.21
7.5
1681
0.27
8.9
1801
0.31
9.8
1920
0.36
10.6
2112
0.44
12.1
2289
0.53
13.5
946
0.15
5.7
1297
0.21
7
1534
0.28
8.4
1672
0.32
9.3
1797
0.36
10.1
2002
0.44
11.6
2199
0.54
13.1
1351
0.27
7.8
1512
0.32
8.7
1657
0.36
9.5
1887
0.45
11.1
2092
0.55
12.6
1257
0.3
8.1
1487
0.36
9.0
1748
0.45
10.5
1979
0.55
12.2
1585
0.44
10.1
1848
0.55
11.6
1692
0.54
11.1
1386
0.51
10.4
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.
17
LB/LBP 18
Belt Drive
LB Dimensions
2.5
(445)
(762)
200
(114)
3
1/
1.0
1/
2
hp
4
LBP Dimensions
19
(914)
DO
hp
14
60
12
61
10
62
3
66
4
46
N
5
1000
2000
3000
4000
5000
6000
cfm
46
36
0.0
0
2
RPM
HP
Density 0.075 lb/ft3
hp
86
OT
0
1/
hp
hp
0.5
2
1
OT
HE
LEF
TO
F TH
IS S
30
1/
TT
30
(762)
1.5
SE
13⁄4
(44)
Static Pressure in. wg
4 ⁄2
1
hp
(533)
400
hp
4
21
1
3/
Static Pressure Pa
2.0
LE
C
(1016)
(991)
YST
EM
C
17 ⁄2
1
URV
E
600
39
40
0
2
4
(1168)
6
8
10
3
m /hr X 1000
(483)
241⁄2
(622)
13⁄4
30
30
(44)
(762)
(762)
LB-18
22 ga
0.064 (0.029)
18 (457)
201⁄2 (521)
Galvanized
135 (61)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LBP-18
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
18 (457)
201⁄2 (521)
Aluminum
179 (81)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
465
LB/LBP-18-4
1/4
562
755
LB/LBP-18-3
1/3
826
888
LB/LBP-18-5
1/2
949
LB/LBP-18-7
3/4
1085
LB/LBP-18-10
1
1141
1286
LB/LBP-18-15
1 1⁄2
1375
LB/LBP-18-20
2
1460
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
1753
0.056
3.6
2119
0.099
4.9
2847
0.24
8.7
3115
0.31
10.2
3348
0.39
11.7
3578
0.48
13.4
4091
0.71
16.8
4302
0.83
18.0
4849
1.19
21
5185
1.45
24
5505
1.73
26
0.125
1422
0.064
2.7
1871
0.108
4.1
2671
0.25
7.9
2957
0.33
9.5
3203
0.4
11.0
3442
0.49
13.0
3972
0.73
16.2
4189
0.84
17.3
4749
1.2
20
5091
1.47
23
5417
1.76
25
0.25
1522
0.114
3.4
2474
0.27
7.4
2778
0.34
8.9
3039
0.42
10.4
3292
0.51
12.0
3847
0.75
15.5
4073
0.86
16.7
4648
1.22
19.8
4997
1.49
22
5328
1.78
24
CFM / Static Pressure in Inches wg
0.5
0.75
1
1.25
1.5
1.75
2
MAX. BHP AT A GIVEN RPM - (rpm/1157)3
MAXIMUM FRPM = 1460
TIP SPEED = rpm x 4.843
MAX. MOTOR FRAME SIZE = 145T
1925
0.27
6.5
2324
0.36
8.0
2638
0.45
9.4
2936
0.54
11.0
3575
0.79
14.6
3814
0.91
15.9
4423
1.27
19.2
4790
1.54
21
5138
1.83
23
2110
0.44
8.7
2498
0.55
10.3
3218
0.82
13.4
3493
0.94
14.8
4183
1.32
18.5
4576
1.59
21
4936
1.88
23
2822
0.82
12.9
3140
0.96
14.1
3880
1.35
17.8
4311
1.63
20
4714
1.93
22
2674
0.93
13.8
3568
1.37
17.4
4025
1.66
19.9
4446
1.98
22
3208
1.35
17.1
3719
1.67
19.6
4176
2
22
3382
1.65
19.5
3874
2
22
3538
1.97
22
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.
18
LB/LBP 21
Belt Drive
LB Dimensions
2.0
E
HIS
S
TO
00
FT
12
LEF
53
10
CT
TO
T
6
HE
90
LE
9
SE
OT
2
N
5
DO
46
19
0.0
0
1000
2000
3000
4000
5000
6000
7000
8000
cfm
46
36
61
LBP Dimensions
(914)
75
Static Pressure in. wg
hp
hp
Static Pressure Pa
4
4
hp
0.5
100
0
hp
hp
3/
hp
1/
(762)
6
(152)
1.0
3
30
1/
30
(762)
200
2
13⁄4
300
1/
23
(584)
1.5
RPM
HP
Density 0.075 lb/ft3
2
2
400
(44)
YST
EM
CUR
V
1/
(584)
hp
(1092)
(1295)
1
23
1
51
43
0
2
4
6
8
10
12
3
(1168)
m /hr X 1000
(483)
241⁄2
(622)
13⁄4
30
30
(44)
(762)
(762)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-21
22 ga
0.064 (0.029)
18 (457)
201⁄2 (521)
Galvanized
145 (66)
LBP-21
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
18 (457)
201⁄2 (521)
Aluminum
191 (86)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
465
LB/LBP-21-4
1/4
595
LB/LBP-21-3
1/3
651
699
LB/LBP-21-5
1/2
747
801
LB/LBP-21-7
3/4
855
LB/LBP-21-10
1
899
1010
LB/LBP-21-15
11⁄2
1077
LB/LBP-21-20
2
1200
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
2820
0.12
6.6
3609
0.24
8.8
3948
0.32
10.1
4239
0.39
11.6
4531
0.48
13.4
4858
0.59
15.5
5186
0.72
16.7
5452
0.83
17.1
6126
1.18
20
6532
1.43
22
7278
1.98
26
0.25
1732
0.13
5.2
2938
0.28
7.8
3371
0.36
8.8
3724
0.44
9.9
4056
0.53
11.2
4424
0.65
12.9
4790
0.79
14.4
5087
0.91
15.4
5826
1.26
18.9
6260
1.52
21
7034
2.07
25
0.375
2457
0.28
6.9
2970
0.36
8.2
3362
0.45
9.3
3741
0.54
10.4
4157
0.66
11.8
4553
0.8
13.3
4858
0.93
14.5
5614
1.3
18.1
6068
1.56
20
6890
2.12
25
CFM / Static Pressure in Inches wg
0.5
0.625
0.75
1
1.25
1.5
1.75
MAX. BHP AT A GIVEN RPM - (rpm/910)3
MAXIMUM FRPM = 1200
TIP SPEED = rpm x 5.596
MAX. MOTOR FRAME SIZE = 145T
2354
0.34
6.9
2954
0.45
8.6
3390
0.55
9.8
3833
0.67
11.3
4261
0.81
12.8
4602
0.94
13.9
5415
1.32
17.3
5877
1.59
19.4
6712
2.18
24
1964
0.38
7.1
2909
0.53
9.1
3491
0.68
10.8
3954
0.82
12.1
4313
0.95
13.4
5183
1.34
16.6
5691
1.61
18.8
6542
2.2
23
2937
0.64
10.1
3608
0.82
11.5
4019
0.96
12.7
4926
1.35
16.2
5451
1.62
18.2
6375
2.22
23
2894
0.86
11.7
4386
1.36
15.0
4965
1.65
17.3
5954
2.25
22
3369
1.24
14.0
4395
1.63
16.4
5517
2.28
21
5013
2.26
20
4122
2.11
18.5
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.
19
LB/LBP 24
Belt Drive
LB Dimensions
1.6
(1156)
(1295)
1
350
1.4
1
(521)
34
(44)
(864)
(864)
63⁄4
150
100
(171)
4
1/
3
hp
0.4
0.2
0
0.0
0
T
NO
1000
2
RPM
HP
Density 0.075 lb/ft3
hp
91
0
79
9
68
8
57
7
46
6
S
35
5
2000
3000
4000
5000
6000
7000
8000
9000
cfm
491⁄2
(1016)
hp
hp
0.6
50
LBP Dimensions
20
hp
EF
TO
1/
DO
40
4
2
hp
TH
EL
34
0.8
3/
1/
1.0
EL
13⁄4
200
1.2
TO
(597)
250
2
EC
T
23 ⁄2
1
Static Pressure in. wg
Static Pressure Pa
300
1/
hp
YS
TEM
20 ⁄2
FT
HIS
S
45 ⁄2
1
CU
RVE
51
1
0
2
4
6
8
10
12
14
3
m /hr X 1000
(1257)
(508)
231⁄2
(597)
13⁄4
34
34
(44)
(864)
(864)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-24
22 ga
0.064 (0.029)
24 (610)
261⁄2 (673)
Galvanized
188 (85)
LBP-24
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
24 (610)
261⁄2 (673)
Aluminum
239 (108)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
355
LB/LBP-24-4
1/4
409
462
LB/LBP-24-3
1/3
508
LB/LBP-24-5
1/2
582
625
LB/LBP-24-7
3/4
667
LB/LBP-24-10
1
734
LB/LBP-24-15
11⁄2
787
868
LB/LBP-24-20
2
910
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
3419
0.11
5.8
3938
0.17
6.3
4449
0.24
7.4
4892
0.32
8.5
5604
0.48
10.7
6018
0.59
12.4
6423
0.72
14.1
7068
0.96
17.0
7578
1.18
19.6
8358
1.58
24
8763
1.82
27
0.25
2715
0.19
5.1
3451
0.28
6.3
4043
0.36
7.4
4917
0.54
9.4
5381
0.66
11.0
5828
0.8
12.7
6531
1.05
15.3
7080
1.29
17.4
7907
1.7
21
8333
1.95
24
0.375
CFM / Static Pressure in Inches wg
0.5
0.625
0.75
0.875
1
1.25
1.375
MAX. BHP AT A GIVEN RPM - (rpm/710)3
MAXIMUM FRPM = 910
TIP SPEED = rpm x 6.414
MAX. MOTOR FRAME SIZE = 184T
2491
0.25
5.3
3433
0.36
6.8
4441
0.55
8.9
4988
0.68
10.3
5505
0.82
12.0
6252
1.08
14.6
6820
1.32
16.5
7675
1.74
20
8114
2
23
3899
0.55
8.4
4497
0.68
10.0
5062
0.83
11.5
5912
1.1
13.9
6560
1.35
15.9
7440
1.78
19.4
7889
2.04
21
3929
0.66
9.5
4589
0.83
11.1
5503
1.1
13.5
6190
1.36
15.4
7192
1.81
18.9
7664
2.07
21
3984
0.79
10.9
5073
1.1
13.2
5799
1.36
15.0
6855
1.82
18.3
7377
2.09
20
4555
1.07
12.9
5398
1.36
14.8
6505
1.83
17.9
7056
2.1
19.8
4909
1.32
14.1
6141
1.82
17.6
6713
2.1
19.5
5285
1.76
16.0
5995
2.08
18.4
5537
2.03
17.2
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.
20
LB/LBP 30
Belt Drive
LB Dimensions
2.0
hp
SY
STE
M
HIS
FT
TO
TH
CT
TO
SE
LE
6
40
(1016)
10
12
14
16
5
10
15
20
25
3
(673)
40
8
m /hr X 1000
261⁄2
(1016)
5
0
4
(584)
13⁄4
83
4
3
2
1
2
0
(1473)
(44)
71
59
47
35
23
T
cfm X 1000
58
46
0.0
0
NO
RPM
HP
Density 0.075 lb/ft3
23
DO
0
hp
Static Pressure in. wg
2
1/
Static Pressure Pa
1
hp
0.5
100
LBP Dimensions
hp
(1016)
3
1/
(1016)
hp
(44)
(216)
2
1/
40
1.0
4
3/
40
200
hp
81⁄2
13⁄4
300
1.5
1
(676)
hp
26 ⁄8
5
2
400
EL
EF
(749)
(1168)
CU
RVE
3
(1270)
(1600)
hp
291⁄2
5
63
50
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-30
22 ga
0.064 (0.029)
30 (762)
321⁄2 (826)
Galvanized
249 (113)
LBP-30
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
30 (762)
321⁄2 (826)
Aluminum
318 (144)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
230
LB/LBP-30-3
1/3
366
394
LB/LBP-30-5
1/2
421
LB/LBP-30-7
3/4
483
LB/LBP-30-10
1
529
567
LB/LBP-30-15
11⁄2
605
LB/LBP-30-20
2
667
LB/LBP-30-30
3
703
LB/LBP-30-50
5
835
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
3910
0.076
8.0
6221
0.31
8.7
6697
0.38
9.0
7156
0.47
9.7
8210
0.7
12.0
8992
0.92
13.8
9638
1.14
15.3
10284
1.38
16.8
11338
1.85
19.8
11950
2.17
22
14194
3.63
27
0.25
4729
0.37
5.9
5354
0.45
6.5
5939
0.54
7.4
7196
0.8
10.7
8079
1.04
12.9
8797
1.27
14.2
9507
1.53
15.7
10639
2.02
18.6
11287
2.34
20
13635
3.84
26
0.375
CFM / Static Pressure in Inches wg
0.5
0.625
0.75
1
1.25
1.5
1.75
MAX. BHP AT A GIVEN RPM - (rpm/512)3
MAXIMUM FRPM = 835
TIP SPEED = rpm x 7.985
MAX. MOTOR FRAME SIZE = 184T
4290
0.44
6.0
5076
0.55
6.7
6567
0.83
9.7
7559
1.07
12.1
8334
1.31
13.6
9073
1.57
15.2
10257
2.07
17.9
10935
2.41
19.5
13356
3.95
25
5777
0.83
8.8
6946
1.1
11.4
7786
1.34
13.0
8605
1.61
14.6
9863
2.12
17.5
10562
2.46
19.1
13062
4.03
25
6162
1.09
10.3
7174
1.36
12.3
8068
1.64
14.1
9419
2.16
17.1
10184
2.51
18.7
12747
4.09
24
6410
1.33
11.2
7434
1.64
13.3
8933
2.19
16.6
9722
2.54
18.3
12432
4.14
24
7737
2.17
14.9
8701
2.57
17.0
11728
4.24
23
7032
2.41
14.2
10951
4.33
22
9965
4.29
21
8478
4.06
18.2
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.
21
LB/LBP 36
Belt Drive
LB Dimensions
2.0
5
(1600)
ST
49
TH
EL
6
58
EF
T
OF
8
hp
TO
4
LE
CT
40
SE
3
31
T
NO
1
0
22
2
4
6
8
10
12
14
16
18
20
cfm X 1000
63
(1314)
0.0
0
67
2
1/
0
LBP Dimensions
26
TH
IS
1
0.5
100
DO
513⁄4
SY
hp
Static Pressure Pa
2
(1168)
hp
(1168)
hp
(44)
(248)
2
1/
46
1.0
4
3/
46
200
hp
93⁄4
13⁄4
300
1
325⁄8
(829)
1.5
hp
(686)
3
400
RPM
HP
Density 0.075 lb/ft3
EM
CU
RVE
27
Static Pressure in. wg
60
(1524)
hp
63
0
10
20
30
3
(1600)
m /hr X 1000
(660)
343⁄8
(873)
13⁄4
46
46
(44)
(1168)
(1168)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-36
0.064 (0.029)
0.064 (0.029)
36 (914)
381⁄2 (978)
Galvanized
338 (153)
LBP-36
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
36 (914)
381⁄2 (978)
Aluminum 444
(201)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
220
LB/LBP-36-5
1/2
315
LB/LBP-36-7
3/4
360
LB/LBP-36-10
1
397
426
LB/LBP-36-15
11⁄2
454
LB/LBP-36-20
2
499
536
LB/LBP-36-30
3
572
614
LB/LBP-36-50
5
678
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
6204
0.16
4.9
8884
0.47
8.2
10153
0.7
10.6
11196
0.94
13.7
12014
1.16
14.8
12804
1.41
16.0
14073
1.87
18.2
15116
2.31
20
16132
2.81
22
17316
3.48
25
19121
4.69
30
0.25
6937
0.55
6.3
8570
0.81
8.9
9816
1.08
12.1
10765
1.32
14.0
11668
1.58
15.4
13064
2.06
17.6
14196
2.52
19.7
15287
3.04
22
16540
3.72
24
18419
4.95
29
0.375
CFM / Static Pressure in Inches wg
0.5
0.625
0.75
0.875
1
1.25
1.5
MAX. BHP AT A GIVEN RPM - (rpm/384)3
MAXIMUM FRPM = 678
TIP SPEED = rpm x 9.425
MAX. MOTOR FRAME SIZE = 184T
7487
0.83
7.9
8911
1.1
10.6
9964
1.35
12.7
10949
1.63
14.5
12442
2.13
17.2
13646
2.61
19.3
14790
3.14
21
16087
3.84
24
18041
5.08
29
7775
1.1
9.4
9056
1.37
11.6
10127
1.65
13.7
11760
2.17
16.6
13037
2.67
18.7
14229
3.21
21
15598
3.93
24
17621
5.21
29
7716
1.34
10.1
9209
1.66
12.5
11004
2.2
16.1
12361
2.7
18.4
13649
3.26
20
15066
3.99
23
17165
5.3
28
7552
1.57
11.0
10173
2.2
15.1
11652
2.73
17.8
12989
3.29
19.9
14504
4.05
23
16683
5.37
27
8773
2.12
13.9
10837
2.72
16.7
12313
3.32
19.0
13890
4.08
22
16192
5.44
27
9559
2.65
15.8
11534
3.31
18.1
13262
4.1
21
15636
5.47
26
11584
4.04
19.2
14494
5.52
24
12970
5.45
22
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.
22
LB/LBP 42
Belt Drive
LB Dimensions
1.6
75
5
(1905)
1 ⁄4
52
(44)
52
(1321)
(1321)
(292)
100
1
1.0
1
3/
4
2
0.4
DO
LBP Dimensions
29
(1473)
hp
2
NO
51
5
45
0
38
5
T
32
0
SE
25
5
19
0
4
6
8
10
12
14
16
18
20
22
24
cfm X 1000
701⁄2
58
TE
hp
1/
0.0
0
hp
hp
E
0.6
0.2
0
1/
2
0.8
hp
hp
TH
111⁄2
3
200
2
1.2
LE
CT
373⁄8
(949)
Static Pressure in. wg
Static Pressure Pa
300
HIS
SY
S
(851)
RPM
HP
Density 0.075 lb/ft3
hp
MC
3
UR
VE
1.4
FT
OF
T
(1794)
LE
33 ⁄2
1
TO
70 ⁄8
5
0
10
20
(1791)
30
40
3
m /hr X 1000
(737)
381⁄4
(972)
13⁄4
52
52
(44)
(1321)
(1321)
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-42
0.064 (0.029)
0.064 (0.029)
42 (1067)
441⁄2 (1130)
Galvanized
396 (180)
LBP-42
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
42 (1067)
441⁄2 (1130)
Aluminum
530 (240)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
190
LB/LBP-42-5
1/2
247
LB/LBP-42-7
3/4
283
LB/LBP-42-10
1
311
334
LB/LBP-42-15
11⁄2
356
LB/LBP-42-20
2
392
420
LB/LBP-42-30
3
448
482
LB/LBP-42-50
5
515
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
8328
0.21
5.2
10827
0.47
6.9
12405
0.71
8.3
13632
0.94
9.8
14640
1.17
11.5
15605
1.41
13.2
17183
1.89
16.1
18410
2.32
18.6
19637
2.82
22
21128
3.51
23
22574
4.28
25
0.125
6455
0.25
4.3
9583
0.53
6.0
11362
0.78
7.6
12718
1.02
9.3
13812
1.25
11.0
14828
1.5
12.7
16477
1.98
15.5
17751
2.42
18.0
19020
2.93
21
20554
3.63
23
22037
4.41
24
0.25
7772
0.55
5.5
9965
0.83
7.1
11521
1.08
8.7
12766
1.33
10.4
13887
1.58
12.1
15667
2.08
14.9
17030
2.52
17.3
18378
3.04
20
19980
3.74
22
21500
4.53
24
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
0.75
0.875
1
1.25
MAX. BHP AT A GIVEN RPM - (rpm/301)3
MAXIMUM FRPM = 515
TIP SPEED = rpm x 11.061
MAX. MOTOR FRAME SIZE = 184T
7932
0.81
6.5
10057
1.1
8.3
11480
1.37
9.8
12733
1.64
11.5
14715
2.16
14.3
16205
2.62
16.6
17605
3.14
19.4
19281
3.86
22
20887
4.65
24
9795
1.35
9.2
11417
1.66
10.8
13626
2.21
13.7
15201
2.68
16.1
16740
3.22
18.8
18562
3.97
21
20214
4.77
23
9401
1.59
10.3
12382
2.21
13.2
14135
2.72
15.4
15786
3.28
18.1
17683
4.04
20
19480
4.87
22
10481
2.13
12.9
12945
2.72
15.3
14735
3.3
17.5
16796
4.1
19.3
18651
4.94
21
11013
2.61
15.2
13494
3.28
17.6
15798
4.11
18.7
17822
5.01
21
14692
4.09
18.5
16871
5.01
20
14331
4.88
19.3
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.
23
LB/LBP 48
Belt Drive
LB Dimensions
(2210)
300
1.2
(1041)
58
58
(1473)
(1473)
(295)
100
4
0.6
1
hp
1/
2
0.4
50
0.2
0
0.0
0
hp
hp
hp
hp
DO
LBP Dimensions
32
(1626)
(813)
0
36
6
31
2
25
8
20
4
N
15
4
8
0
12
16
20
24
28
cfm X 1000
761⁄2
64
42
TH
EL
3/
EF
TO
FT
HIS
S
2
RPM
HP
Density 0.075 lb/ft3
hp
TO
1 ⁄4
(44)
2
1/
O
3
150
1
0.8
SE
LE
CT
11 ⁄8
5
200
hp
1.0
T
Static Pressure Pa
411⁄2
(1054)
Static Pressure in. wg
3
250
5
YST
EM
C
41
(1788)
URV
E
1.4
87
703⁄8
0
10
20
(1943)
403⁄8
(1026)
13⁄4
58
58
(44)
(1473)
(1473)
30
40
3
m /hr X 1000
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-48
0.064 (0.029)
0.064 (0.029)
48 (1219)
501⁄2 (1283)
Galvanized
430 (195)
LBP-48
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
48 (1219)
501⁄2 (1283)
Aluminum
579 (263)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
150
LB/LBP-48-5
1/2
175
199
LB/LBP-48-7
3/4
226
LB/LBP-48-10
1
249
LB/LBP-48-15
1 ⁄2
267
1
285
LB/LBP-48-20
2
314
LB/LBP-48-30
3
359
381
LB/LBP-48-50
5
420
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
9666
0.21
6.1
11277
0.34
6.9
12824
0.5
7.6
14563
0.73
8.5
16046
0.98
9.5
17205
1.2
10.6
18365
1.46
12.3
20234
1.96
15.4
23134
2.93
18.4
24552
3.5
20
27065
4.69
23
0.125
6546
0.24
5.4
8948
0.38
5.6
10846
0.56
6.8
12863
0.81
8.2
14530
1.07
9.4
15823
1.31
10.4
17103
1.58
11.7
19141
2.1
14.5
22214
3.1
17.8
23685
3.68
19.6
26278
4.89
23
0.25
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
0.75
0.875
0.9
1
MAX. BHP AT A GIVEN RPM - (rpm/241)3
MAXIMUM FRPM = 420
TIP SPEED = rpm x 12.632
MAX. MOTOR FRAME SIZE = 213T
7629
0.54
7.0
10741
0.83
7.5
12787
1.1
9.2
14222
1.35
10.2
15612
1.63
11.1
17779
2.17
13.4
21041
3.21
17.2
22620
3.81
19.1
25383
5.05
23
10092
1.08
8.3
12151
1.36
9.2
13896
1.66
10.5
16397
2.2
12.5
19878
3.25
16.5
21512
3.87
18.6
24354
5.15
23
11357
1.61
9.6
14665
2.22
12.2
18650
3.29
15.9
20378
3.92
17.9
23363
5.21
22
11934
2.1
11.5
17134
3.31
15.5
19104
3.95
17.4
22317
5.25
22
15069
3.25
14.8
17564
3.95
17.1
21159
5.29
21
11596
2.84
13.4
15491
3.86
16.2
19839
5.31
21
15076
3.85
16.0
19534
5.3
21
18029
5.23
20
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.
24
LB/LBP 54
Belt Drive
LB Dimensions
LBP Dimensions
35
(1778)
SY
STE
H IS
FT
TO
EF
TH
EL
3
0.0
0
NO
9
18
5
4
13
0
10
15
10
20
(1108)
64
64
(1626)
25
30
35
40
30
40
50
60
3
435⁄8
(1626)
20
m /hr X 1000
(889)
13⁄4
8
29
TO
SE
LE
CT
0.2
0
(2121)
(44)
1
34
cfm X 1000
831⁄2
70
40
23
T
Static Pressure in. wg
Static Pressure Pa
hp
hp
0.4
DO
0
hp
1
50
0.6
2
(1626)
100
1/
(1626)
(318)
0.8
1
64
150
hp
(44)
121⁄2
64
200
1.0
2
(1153)
2
hp
45 ⁄8
RPM
HP
Density 0.075 lb/ft3
1/
3
250
3
13⁄4
1.2
7
(965)
300
hp
(2019)
(2210)
5
38
MC
UR
VE
1.4
87
791⁄2
Hood Thickness
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
LB-54
0.064 (0.029)
0.064 (0.029)
54 (1372)
561⁄2 (1435)
Galvanized
596 (270)
LBP-54
0.064 (0.029)
0.081 (0.036)
0.064 (0.029)
54 (1372)
561⁄2 (1435)
Aluminum
780 (354)
All dimensions are in inches (millimeters). Weight in pounds (kilograms).
*Weight shown is the largest cataloged Open Drip Proof motor.
See page 11 for severe duty LBP dimensions.
Model
Number
Motor
HP
Fan
RPM
130
LB/LBP-54-10
1
155
206
LB/LBP-54-15
11⁄2
235
LB/LBP-54-20
2
258
277
LB/LBP-54-30
3
296
323
LB/LBP-54-50
5
350
376
LB/LBP-54-75
71⁄2
401
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
0
12159
0.25
4.6
14497
0.42
5.8
19267
0.99
8.7
21980
1.47
11.2
24131
1.95
12.1
25908
2.41
14.1
27685
2.94
17.6
30210
3.82
19.3
32736
4.87
18.9
35167
6.03
22
37506
7.32
25
0.125
11186
0.48
4.9
17356
1.1
8.5
20319
1.6
11.2
22628
2.09
12.5
24517
2.57
13.4
26383
3.11
15.5
29017
4.01
17.8
31634
5.06
19.5
34142
6.25
23
36544
7.54
26
0.25
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
0.75
0.875
1
1.125
MAX. BHP AT A GIVEN RPM - (rpm/198)3
MAXIMUM FRPM = 401
TIP SPEED = rpm x 14.137
MAX. MOTOR FRAME SIZE = 215T
13895
1.12
8.7
17983
1.66
11.3
20831
2.18
13.0
22962
2.68
14.1
25030
3.25
15.2
27789
4.17
17.3
30514
5.25
20
33111
6.45
23
35583
7.77
26
14194
1.6
11.7
17904
2.21
13.3
20554
2.72
14.4
23122
3.31
16.0
26305
4.27
18.4
29312
5.39
21
32039
6.62
24
34583
7.96
27
17326
2.65
13.7
20394
3.34
15.1
24165
4.31
18.3
27766
5.46
22
30716
6.72
25
33500
8.11
28
16072
3.1
13.1
21535
4.29
16.8
25487
5.5
21
29030
6.79
26
32150
8.19
29
17215
4.01
14.7
22974
5.43
19.0
26889
6.82
24
30332
8.24
29
18944
5.13
17.8
24483
6.71
22
28324
8.29
27
20824
6.4
21
26018
8.13
26
22767
7.81
24
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.
25
Specifications
Direct Drive Specifications
Belt Drive Specifications
The LD and LDP exhaust fans shall be direct drive
type. The fan wheel shall be centrifugal backward
inclined, constructed of aluminum and shall include
a wheel cone carefully matched to the fan’s venturi
for precise running tolerances. Wheels shall be
statically and dynamically balanced. The fan shall be
constructed of heavy gauge steel or aluminum with a
rigid internal support structure and a birdscreen.
The LB and LBP exhaust fans shall be belt drive type.
The fan wheel shall be centrifugal backward inclined,
constructed of aluminum and shall include a wheel
cone carefully matched to the fan’s venturi for precise
running tolerances.
Motors shall be mounted on vibration isolators.
Motors shall be readily accessible for maintenance.
A disconnect switch shall be factory installed and
wired from the fan motor to a junction box within
the motor compartment. A conduit chase shall
be provided through the curb cap to the motor
compartment for ease of electrical wiring.
All fans shall bear the AMCA Certified Ratings Seal
for Sound and Air Performance.
Each fan shall bear a permanently affixed
manufacturer’s engraved aluminum nameplate
containing the model number and individual serial
number for future identification.
Fans shall be models LD or LDP as manufactured
by Greenheck Fan Corporation in Schofield,
Wisconsin, USA.
Wheels shall be statically and dynamically balanced.
The fan shall be constructed of heavy gauge steel or
aluminum with a rigid internal support structure and
birdscreen.
Motors shall be heavy duty ball bearing type,
carefully matched to the fan load, and furnished at
the specified voltage, phase and enclosure. Drive
frame assembly shall be constructed of heavy
gauge steel. Motors and drives shall be mounted on
vibration isolators. Motors and drives shall be readily
accessible for maintenance.
Precision ground and polished fan shafts shall be
mounted in permanently sealed, lubricated pillow
block ball bearings. Bearings shall be selected
for a minimum L10 life in excess of 100,000 hours
(L50 average of 500,000 hours) at maximum cataloged
operating speed. Drives shall be sized for a minimum
of 150% of driven horsepower. Pulleys shall be of the
cast type, keyed and securely attached to the wheel
and motor shafts.
Motor pulleys shall be adjustable for final system
balancing. A disconnect switch shall be factory
installed and wired from the fan motor to a junction
box installed within the motor compartment. A
conduit chase shall be provided through the base to
the motor compartment for ease of electrical wiring.
All fans shall bear the AMCA Certified Ratings Seal
for Sound and Air Performance.
Each fan shall bear a permanently affixed
manufacturer’s engraved aluminum nameplate
containing the model number and individual serial
number for future identification.
Fans shall be models LB or LBP as manufactured
by Greenheck Fan Corporation in Schofield,
Wisconsin, USA.
26
Specifications Vari-Green®
Vari-Green Control - Remote Dial
Remote Dial shall be a Vari-Green control specifically
designed to provide 0-10 volt DC signal to
Greenheck’s Vari-Green Motor.
Vari-Green Control - Two Speed
Vari-Green® Motor
Motor to be an electronic commutation (EC)
motor specifically designed for fan applications.
AC induction type motors are not acceptable.
Examples of unacceptable motors are: Shaded
Pole, Permanent Split Capacitor (PSC), Split
Phase, Capacitor Start and 3 phase induction type
motors. Motors shall be permanently lubricated
with heavy-duty ball bearings to match the fan load
and prewired to the specific voltage and phase.
Internal motor circuitry shall convert AC power
supplied to the fan to DC power to operate the
motor. Motor shall be speed controllable down to
20% of full speed (80% turndown). Speed shall be
controlled by either a potentiometer dial mounted
on the motor or by a 0-10 VDC signal. Motor shall
be a minimum of 85% efficient at all speeds.
Two-speed control shall be a Vari-Green Control
specifically designed to allow the Vari-Green Motor
to operate at two discrete speeds. Two speed
control shall include two dials that may be set at
any point between 0 and 10 volts DC and an integral
transformer capable of reducing 115/208-240 volt
AC power to 24 volt AC power.
Vari-Green Control – Constant Pressure
Control to be a packaged constant pressure
control designed to regulate fan speed based on
demand. Control shall include a Proportional Integral
Derivative (PID) feedback loop and shall have all
components prewired to labeled terminal strips
for easy wiring. Fan shall be direct drive including
an electronic commutation (EC) Vari-Green Motor.
Control package shall be Vari-Green Constant
Pressure or Airflow Control.
Control with integral pressure transducer shall be
a NEMA-4 rated enclosure with built in pressure
transducer. The proper pressure/airflow tap for the
application shall be supplied.
Control with remote pressure transducer shall be a
NEMA-4 rated enclosure for both the controller and
remote transducer. The proper pressure/airflow tap
for the application shall be supplied.
LEED information
Greenheck became one of the first
manufacturers in the Air Movement
and Control industry to join the LEED/
green movement when they joined the United
States Green Building Council (USGBC) in
2005. Greenheck has been actively researching
qualification requirements for our products to
meet LEED credits and prerequisites.
The Vari-Green motor significantly helps
qualification efforts for the Energy and
Atmosphere credits and prerequisites; specifically
credit one, Optimize Energy Performance and
prerequisite two, Minimum Energy Performance.
27
Extraordinary Service
Enjoy Greenheck’s extraordinary service, before, during
and after the sale.
Greenheck offers added value to our wide selection of top performing,
energy-efficient products by providing several unique Greenheck service
programs.
• Our Quick Delivery Program ensures shipment of our in-stock products
within 24 hours of placing your order. Our Quick Build made-to-order
products can be produced in 1-3-5-10-15 or 25-day production cycles,
depending upon their complexity.
• Greenheck’s free Computer Aided Product Selection program (CAPS),
rated by many as the best in the industry, helps you conveniently and
efficiently select the right products for the challenge at hand.
• Greenheck has been Green for a long time! Our energy-saving products
and ongoing corporate commitment to sustainability can help you
qualify for LEED credits.
• Our 3D service allows you to download, at no charge, easy-to-use
AutoDesk™ Revit™ 3D drawings for many of our ventilation products.
Find out more about these special Greenheck services at greenheck.com
Building Value in Air
Greenheck delivers value
to mechanical engineers by
helping them solve virtually
any air quality challenges
their clients face with a
comprehensive selection of
top quality, innovative airrelated equipment. We offer
extra value to contractors
by providing easy-to-install,
competitively priced, reliable
products that arrive on time.
And building owners and
occupants value the energy
efficiency, low maintenance
and quiet dependable operation
they experience long after the
construction project ends.
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change
specifications without notice.
Specific Greenheck product warranties are located on greenheck.com within the product
area tabs and in the Library under Warranties.
P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com
Prepared to Support
Green Building Efforts
00.F&V.1001 R6 4-2016 IW
Copyright © 2016 Greenheck Fan Corp.