Greenheck Fan Corporation certifies that the
Models G and GB fans 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
Publication 311 and comply with the requirements
of the AMCA Certified Ratings Program. The
certified ratings for Models G and GB are shown
on pages 15 - 47
G and GB models are listed for electrical
(UL/cUL 705) File no. E40001
GB models for Emergency Smoke Control Systems
(UL/cUL Listed for 500°F (260°C) for 4 hours and
1,000°F (538°C) for 15 minutes) File no. MH17511
*UL/cUL is optional
and must be specified
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 1-3-5-1015-20 or 25-day production cycles, depending upon their complexity.
• eCAPS
projects. It includes fan, louver and dedicated outdoor air systems (DOAS) selection, as well
as a damper guide and toolbox.
• Greenheck’s free Computer Aided Product Selection (CAPS
best in the industry, helps you conveniently and efficiently select the right products for the
challenge at hand.
• 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
®
online selection guides you to choose the best value product for your building
®
) program, rated by many as the
greenheck.com
2
Models G and GB
Spun Aluminum • Downblast
Centrifugal Roof Exhaust Fans
Model Comparison
LocationMountingAirflowApplication
Model
Outdoor
Indoor
Roof Curb
Base/Floor
Hanging
Wall
Ceiling Mounted
Exhaust
Supply
Reversible
Recirculate
General/Clean Air
Contaminated Air
Spark Resistant
Grease (UL 762)
Smoke Control (UL)*High Wind**
Continuous High Temp
(above 200°F )
Drive
Type
Belt
Direct
Impeller
Type
Centrifugal
Propeller/Axial
Performance
Mixed Flow
Maximum Volume
(cfm)
Maximum Static
Pressure (in. wg)
G
99999999
GB
9 99999999
* Smoke control available on models: 100, 100HP, 120, 130, 140, 140HP, 160, 160HP, 200, 240, 300, 360, 420 and 480
** High wind limited to sizes 300 and smaller
Greenheck models G and GB centrifugal roof exhaust
fans provide the industry’s best performance and
durability for general clean air applications where air is
discharged downward, toward the roof surface.
• Broadest performance in the industry, up to
3.25in.wg (810 Pa) and 44,700 cfm (75,945 m
3
/hr).
• Most advanced motor cooling of any fan in its class.
Direct Drive, G
• Use for short and/or low resistance ductwork
Belt Drive, GB
• For average length and/or average
resistance ductwork
• High volume/average pressure
• Performance as cataloged is ensured. All fan sizes
are tested in our AMCA accredited laboratory, and
all models are licensed to bear the AMCA Sound
High Pressure, G-HP and GB-HP
• For long and/or high resistance ductwork
and Air Performance seals.
• Low volume/high pressure
• UL Listed for electrical.
• Greenheck subjects these products to extensive
life testing ensuring the fans will provide years of
reliable performance.
14,500 2.75
44,700 3.25
3
Construction Features
Models G and GB
Standard Construction Features
A backward-inclined, non-overloading centrifugal wheel is utilized to generate high-
Wheel
1
Disconnect
2
Switch
Fan Shaft
3
Bearings
4
5
MotorCarefully matched to the fan load and mounted out of the airstream.
efficiency and minimal sound. Wheel cones are carefully matched to the venturi for
maximum efficiency. Each wheel is robotically welded and statically and dynamically
balanced for long life and quiet operation.
NEMA-1 switch is factory-mounted and wiring is provided from the motor as standard
(other switches are available). All wiring and electrical components comply with the
National Electrical Code
Precisely sized, ground and polished, so the first critical speed is at least 25% over
the maximum operating speed. Where the shaft makes contact with bearings, tight
tolerances result in longer bearing life.
100% factory tested and designed specifically for air handling applications with a
minimum L
life in excess of 100,000 hours (L 50 life of 500,000 hours).
10
®
(NEC) and are either UL Listed or Recognized.
6
7
8
9
10
11
12
Not
Shown
13
14
15
Motor Cover
Motor Cooling
Lifting PointsVarious lifting points are located on the drive frame and bearing plate (on select sizes).
True Vibration
Isolation
Drive Assembly
Lower Windband
Curb Cap
Internal Conduit
Chase
NameplatePermanent embossed aluminum plate for exact model and serial number identification.
Galvanized
Birdscreen
Fan Shroud
Constructed of aluminum and attached with fasteners for easy removal and access to
motor compartment and drive assembly.
Cooling fins located on top of the fan wheel draw outside air through a large space
between the fan shroud and the motor cover directly into the motor compartment.
Positive motor cooling with fresh air results in maximum motor life.
Vibration isolators, with no metal-to-metal contact, support the drive assembly and
wheel for long life and quiet operation.
Belts, pulleys, and keys are oversized 150% of driven horsepower. Machined-cast
pulleys are adjustable for final system balancing. Belts are static-free and oil-resistant.
Heavy-gauge aluminum with formed edges for added strength and provides
weather resistance.
Curb cap (with integral deep spun venturi) is constructed of aluminum and is one-piece for
a weather-tight fit.
A large diameter conduit for installing electrical wiring through the curb cap into the
motor compartment.
Rigid wire protects the fan discharge from birds and small objects.
One-piece, heavy-gauge aluminum with a rolled bead for extra strength directs exhaust
air downward.
Mounting HolesCurb cap has prepunched mounting holes to ensure correct attachment to the roof.
16
High Wind Construction Features
17
Internal Supports
Reinforced
18
Windband
Roof Curb
(page 11)
4
Heavy-gauge supports and bracing are added for additional strength to withstand
a load of 75 psf.
High wind fans include additional reinforcement for maximum strength.
High wind-load fans are certified for use with Greenheck model GPFHL, GPFHD, GPF or
equivalent in high wind applications. Roof curbs ship separate for field installation with
attachment details provided.
Construction Features
Models G and GB
6
7
5
MODEL G
DIRECT DRIVE
11
1
6
14
13
12
DRIVE FRAME
(BELT DRIVE)
3
10
8
8
9
MODEL GB
BELT DRIVE
17
8
18
4
2
16
15
5
Applications
s
Models G and GB
Emergency Smoke Control - GB
When you buy a Greenheck
model GB with the smoke
control option, you receive a
fan with the industry’s best
performance and durability for
smoke control applications
(as found in emergency smoke
control systems).
• UL/cUL Listed for 500°F (260°C) for 4 hours and
1,000°F (538°C) for 15 minutes.
• Half the weight of traditional smoke control fans,
ideal choice for roof load concerns.
• Low profile, height is less than half of traditional
smoke control fans, maximum of 52
1
⁄2 inches
(1334 mm) from curb cap to top of the fan.
• Multiple applications, capable of exhausting
general clean air and satisfying emergency
smoke control regulations.
With changes in building codes and standards, more equipment is being
required to be seismically certified in areas of the country not commonly
thought of as being in seismically active zones.
The International Building Code (IBC) is designed to provide model
code regulations that safeguard public health and safety in all U.S.
communities. This code is intended to improve the performance and
design of nonstructural systems subject to seismic events.
The State of California, one of the most active seismic areas in the United
States, has the Office of Statewide Health Planning and Development
(OSHPD) to regulate the design and construction of health care facilities
to ensure they are safe and capable of providing
services to the public after a seismic event.
OSHPD developed their own unique certification
process to incorporate the IBC and ASCE
testing standards to ensure equipment remains
operable after a seismic event.
Note: All G and GB models meet seismic
requirements.
Protocols designed for seismic standards:
All Greenheck seismically certified models have been tested using the most severe seismic event that is
Seismic
Testing Criteria
California OSHPD
Test Protocols
OSHPD Certification
6
found on the Spectral Response Map per IBC Figures 1613.5 (1-2). Our testing is performed under the
worst case scenario using the highest mapped seismic load, highest level occupancy category, worst
case site class, and highest code mandated importance factor, thereby allowing Greenheck’s seismically
certified fans to be used anywhere in the United States under any conditions.
The California Office of Statewide Health Planning and Development (OSHPD) requires all certified
models be shake table tested in accordance with ICC ES AC-156, in which the fans are physically
subjected to the same or greater forces than they will see during a seismic event. Subjecting
Greenheck model G and GB fans to this type of testing ensures the fans will operate without
problems after a seismic event.
The OSHPD certification numbers and supporting documents can be viewed on OSHPD’s
website ensuring that the fan has been subjected to and passed rigorous testing standards.
Applications
U.S. continent
Models G and GB
High Wind and Hurricane - G and GB
Greenheck is leading the High Wind Standard for roof top fans and
ventilators. Forceful winds and wind-borne debris are the cause of most
hurricane damage. Hurricane winds start at 75mph and can exert a
force of 75poundspersquarefoot of pressure—or over 900pounds
on a fan and curb. Forceful winds are not the only problem; wind-borne
debris can also cause detrimental effects to objects and structures.
High winds and extreme forces are the cause of most storm damage.
By analyzing calculations, computer simulations, actual testing, and
other standards—Greenheck developed the High Wind Standard.
U.S. continent
averaged
tornado frequency.
Atlantic, Gulf and Pacific history of major hurricane tracks.
Protocols designed to protect against wind-borne debris and severe wind-loads:
Structural
Performance Load
Miami-Dade NOA
Numbers
Florida Product
Approval
A static load that is 1.5times the design load (91.5 pounds per square foot of pressure) is applied both
positively and negatively to simulate wind force loads in each direction. Structural Performance per
Dade County Protocol TAS-202 (ASTM-E330).
View the certifications on the Miami-Dade County website. Models G and GB are the first downblast
aluminum fans in the industry to have received a Miami-Dade NOA for high wind and hurricane zones.
Florida Product Approval ensures approved products can be used use anywhere in the State of Florida
which are not governed by the Miami-Dade County high wind regulations. More information is available
on the Florida Building Code website. Florida Product Approval FL13225.1 for models G and GB.
7
Vari-Green® Motor Option
E
S
GB120
G-
120-A5
G-
120-VG
Model G
Greenheck’s electronically commutated (EC)
Vari-Green (VG) motor is the industry’s first fully
controllable motor. It combines motor technology,
controllability and energy-efficiency into a single
low-maintenance unit. When combined with
Greenheck fans, all the CFM and static pressure
ranges of a belt drive can be attained with the
benefits of a direct drive.
• The Vari-Green motor can attain up to IE5 efficiency
ratings and reduce energy consumption.
• Watt savings of 30-70% depending on RPM.
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.
• 75% usable RPM turndown versus 30%, see Motor
Turndown Comparison chart at right.
• G 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.
8
Features
• 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.
•
Control Wire Inputs - the motor accepts a 0-10V DC
signal from Building Automated Systems or other
controls to adjust motor speed.
Vari-Green Advantages
• Initial cost is similar to a belt drive
• Lower operating cost
• No maintenance: no belts, pulleys or bearings
• Easy RPM adjustment
Comparisons: Belt, Direct Drive with PSC
and Direct Drive with Vari-Green
Motor Turndown Comparison
600
500
400
300
200
INPUT POWER (WATTS)
100
0
0350
*
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
750
500
250
$
0
(#-
GB120
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 GB-120 is estimated
at $65/yr.
Note: Example is based on a relative cost. Use and installation
variables may produce different results.
(-"
120-A5
50%75%100%
G-120
with PSC
GB-120
FAN SPEED (RPM)
G-
Not recommended
G-
(7(
120-VG
Single Phase*
Energy
Savings
G-120 with
1750
Vari-Green
®
Control Options
Demand Control Ventilation for
Multistory Buildings
Applications requiring constant pressure or variable
volume can utilize G fans with Vari-Green motors
and Vari-Green controls.
Demand control
ventilation systems
reduce the amount
of energy used by
decreasing the speed
of the fan when demand
is low. This lessens the
amount of conditioned
air exhausted, and
in turn, reduces the
total operating costs
associated with air
conditioning and heating
in multistoried buildings
including hotels,
multifamily complexes,
institutional facilities,
and high-rise
commercial buildings.
Variable Volume
Operating Cost Analysis
Variable Volume vs. Constant Volume
$
2,000
1,750
1,500
1,250
1,000
750
500
250
$
0
Variable
Volume
Heating Cost
Cooling Cost
Fan Operating Cost
Example of potential savings
based on a northeast city in
the USA using Vari-Green
components for variable volume.
Constant
Volume
The Vari-Green constant pressure control is
preprogrammed and easy to install for applications
that include venting dryers, bathrooms, residentialtype kitchen space, or industrial process exhaust.
Daily Operating Comparison:
Variable Volume and Constant Volume
Note: A standard VFD compatible motor can also function within a
Variable Volume system.
(Hotel Bathroom)
Time of Day
Time of Day
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 -Control allows motor RPM 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 speed for
energy conservation.
Constant Pressure Control - Control the Vari-Green
motor via static (variable volume) or velocity (constant
CFM) pressure on the inlet or outlet side of the fan.
Available with duct or room probes for use in:
• Multifamily structures including apartments, condos,
hotels; residential kitchens and bathrooms
• Institutional facilities such as schools, prisons,
multistory office buildings; bathrooms
®
Air Quality, Volatile Organic Compounds (VOC) -
Control a Vari-Green motor via changes in VOCs.
VOCs are gasses that are emitted from humans,
building materials, perfumes, foods, and furniture
off-gassing. Range is 0-2000 CO
• Commercial buildings including office space in
conference rooms, bathrooms, or breakrooms
Air Quality for Temperature and Humidity - Control
the Vari-Green motor via changes in temperature,
humidity, or both. Range is 32° to 120°F and 0% to
100% relative humidity.
• Multifamily structures including apartments,
condos,hotels, with placement in bathrooms and
utility rooms
• Commercial buildings such as office buildings for
placement in general office space, conference
rooms, utility rooms, and bathrooms
9
Vari-Green® Drive
6:23 AM
6:23 AM
6:23AM
23 A
89%
%
Greenheck’s Vari-Green Drive is a factory-mounted, wired, and
programmed variable frequency drive. Specifically designed for
use in air handling applications, the Vari-Green Drive expands
variable volume operation and simplifies speed adjustment to
three phase applications.
Features
Vari-Green Drive model VGD-100+ is constructed
with a NEMA-4X rated enclosure to ensure a
long life operating under outdoor environmental
conditions. Every Vari-Green Drive is compatible
with all Vari-Green controls or any industry
control sending a 0-10V or 4-20mA signal.
Model VGD-100+ is also equipped with Modbus/
BACnet
®
communications allowing for seamless
integration to building management systems.
Benefits
• Variable volume control from the factory on
larger fan sizes where Vari-Green motors
are not available.
3
• R
filtering and short leads mitigate harmonics.
• Quick start-up and simplistic commissioning
as each drive comes preprogrammed and
installed from the factory.
Features
Analog Input (0-10V, 4-20mA)
Damper Actuator Output (24VDC)
Control Voltage Output (24VDC)
LED Indication Lights (3)
Relay Output (2)
Digital Input - Dry (2)
Digital Input - Voltage (2)
RS-485 (Modbus/BACnet)
Bluetooth/Smart Device Interface
On-Board PID Control
Optional Pressure Transducer
VGD-100
+
9
9
9
9
9
9
9
9
9
9
9
• Eliminate compatibility issues as the motor and
drive are factory-matched.
• Induction motors are reliable, efficient and readily
available if replacements are needed.
10
Vari-Green Drive 100+ App
Vari-Green Drive model VGD-100+ features a smartphone
companion app available for download from the app
store. Manually control and monitor the drive from the app
as well as access any advanced programming features.
For more information about the companion app and its
capabilities, reference the VGD-100+ Quick Start Guide
located on greenheck.com and the documentation section
of the app.
6:23 AM
6:23 AM
89%
89%
89%
6:23 AM
Roof Curbs, Options and
Accessories
Roof Curbs
A wide variety of roof
curbs are available for
mounting the fan to the
roof including: vented,
flanged, pitched and
sound-absorbing.
High Wind and Severe Duty Roof Curbs
GPF/GPFP/GPFR
Approved for high
wind applications up
to a 75 psf wind-load
rating. Constructed
of 18-gauge steel,
formed and welded
sides, and a 5-inch flashing
flange. GPF is available up
to 42 inches inheight. GPFP
and GPFR areavailable up to
24inches in height.
GPFHL (Heavy Load) 14-gauge galvanized steel
with internal vertical support
members and a 5-inch flashing
flange. Available up to 24 inches
inheight.
GPFHD (Heavy-Duty) - 12-gauge galvanized steel
with internal vertical support members and a double
thick 5-inch flashing flange. Available up to 24 inches
in height.
Note: Maximum 24 inch height restriction on all curb
models certified for high wind.
For detailed curb information refer to Roof Curbs,
Extensions and Equipment Supports catalog.
Mounting details for the roof curb to the roof
substrate and the fan to the curb are included with
each model G and GB installation manual.
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
entrymust be prevented.
Hinged Curb Cap with
Cables (Field Installed)
Mounted to the curb cap,
allows entire fan to tilt
away from curb for access
to wheel and ductwork.
Includes restraint cables.
Hinged Base
(Factory-Mounted)
Allows for easy maintenance. Hinge and restraining
cables are factory-mounted to a subbase attached
directly to curb without additional height added.
Curb Seal
Rubber seal between fan and curb to ensure proper
sealing when attached to a curb.
Tie-Down Points
Four brackets located on
the shroud for securing
the fan in high wind
applications. Cables and
anchors by others.
11
Roof Curbs, Options and
Accessories
Speed Controllers for
Standard Motors
Available for use with shaded
pole and permanent split
capacitor (PSC) motors
on model G fans. They provide
an economical means of system
balancing with direct drive fans.
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.
Dampers
Designed to prevent
outside air from entering
back into the building
when fan is off. Includes
gravity and motorized
dampers. Damper sizes
are shown on each
performance data page.
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 receive
the best motor
protection available.
Specific model
components may include:
SmartStart™ technology, physical interface, overload
protection, disconnect, magnetic contactor, NEMA-1
or NEMA-3R steel enclosures and pre-engineered
easy system integration. For complete information on
specific Greenheck motor starter models, refer to
greenheck.com, motor starter page.
Birdscreen
Galvanized mesh is standard.
Optional aluminum or stainless
steel rigid wire are also available.
G and GB models are Listed for electrical
(UL/cUL705) File no. E40001
GB models for Emergency Smoke Control Systems
(UL/cUL Listed for 500°F (260°C) for 4 hours and
1,000°F (538°C) for 15 minutes) File no. MH17511
Note: UL/cUL is optional and must be specified.
Coatings
A wide variety of coatings and colors are available.
Greenheck coatings and resistance charts can be
found in the Performance Coatings Commercial
and Industrial Fans catalog and in our Product
Application Guide—Performance Coatings for
Ventilation Products.
Permatector™is our standard coating.
PERMATECTOR
TM
Typically used for applications that
require corrosion resistance in indoor
and outdoor environments.
Hi-Pro Polyester is resistant to salt
water, chemical fumes and moisture
in more corrosive atmospheres.
Typically used for applications that
require superior chemical resistance,
excellent abrasion and outdoor UV
protection. This coating exceeds
protective qualities of air dried Heresite
and air dry phenolic. Customers can
choose from seven standard decorative
colors or color match any color.
Macropoxy with UV topcoat
is a two-coat extreme duty coating
system. The base coat of Macropoxy
is designed specifically for harsh
environments, while the topcoat is used
for its chemical and UV resistance.
Together this system offers the greatest
protection in adverse environments,
such as marine or chemical processing
applications. Customers can choose
from seven standard decorative colors.
12
Typical Installations
Models G and GB
General Clean Air (Figure 1)
Models G and GB exhaust fans meet the needs of
general clean air applications. Tests were conducted
to ensure safe, rugged and reliable fans.
Due to the varying types of airstreams encountered
in commercial ventilation, system designers must
be aware of national, state, and local codes and
guidelines governing these installations. Consult
local code authorities before proceeding with any
ventilation project.
• When roofing materials extend to the top of the
curb, roof curbs should be 1
each 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 the performance
data pages (starting on page 15).
• Installation must include a means for inspecting,
cleaning and servicing the exhaust fan.
High Wind, Hurricane and Seismic (Figure 2)
• Roofing materials can extend to the top of the
curb, roof curbs should be 1 inch (25 mm) total,
or 1⁄2inch (13 mm) on each side, less than the unit
curb cap to allow for roofing and flashing.
1
⁄2 inches (3⁄4 inch on
Figure 1
Wiring by
Others
Figure 2
¾ in.
(19 mm)
1
(32 mm)
½ in. (13 mm)
Wiring by
Others
1
/4in.
Damper
Recommended
Duct and
Damper Size
Recommended
Roof Opening
4 in. (102 mm)
From Curb Edge
Factory Wired
from Motor to
Disconnect
8 or 12 in.
(203 or 305 mm)
1
1
/4in.
(32 mm)
1
/4 in. (6 mm)
Fastener
8 - 24 in.
(203 - 610 mm)
GPF
Note: The typical installations shown are recommendations
based on national codes. Local authority may supersede these
recommendations.
Wheel Rotation
Direction of rotation is very critical. Rotation in the wrong direction will result in
excessive horsepower, possible motor burnout, and increased noise levels.
Check rotation by energizing the unit momentarily. The rotation should be the same
as the rotation decals affixed to the unit and is clockwise when viewed from the top
of the unit.
Clockwise
1
/4in. (32 mm)
1
Damper
Recommended
Duct and
Damper Size
Recommended
Roof Opening
11/4in. (32 mm)
13
Typical Installations
Models G and GB
Fan Inlet Connections
To ensure proper fan performance, exercise caution
in fan placement and connection to the ventilation
system. Obstructions, transitions, poorly designed
elbows, improperly selected dampers, etc., can
cause reduced performance, excessive noise, and
increased mechanical stress. For performance to be
as published, the system must provide uniform and
stable airflow into the fan.
Provide uniform airflow at fan inlet to ensure
A
optimum performance.
Provide uniform airflow at fan inlet and through
B
the damper to ensure optimum performance.
Dampers must open fully. Use motorized
C
dampers in low airflow applications to
reduce losses.
Avoid sharp turns or entrance conditions that
D
cause uneven flow. Use turning vanes in elbows
to reduce adverse effects.
Good
Good
A
Poor
C
B
Poor
D
Model Number Code
The model number code 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 code is determined by
the size and performance
GB - 240HP - A - 5 - VG/VGD - 1 - 34 - X
Configuration
G - Direct Drive
GB - Belt Drive
Fan Size
060 through 540
Wheel Pressure Level
HP - High Pressure
Motor RPM(Direct Drive only)
A = 1725 D = 1550
B = 1140 E = 1050
C = 860 G = 1300
Damper Size = 8 x 8 (203 x 203)
Roof Opening = 10½ x 10½ (267 x 267)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 15 lbs. (7 kg)
All dimensions in inches (millimeters). *May be greater depending on motor.
^Weight shown is largest cataloged Open Drip-Proof motor.
Direct
Motor HPFan
Drive
060
VG1/10
E-1/200 1050
G-1/100 1300
D-1/60 1550
RPM
1725
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
00.050.10.1250.150.20.250.30.3750.4
138116907353
0.000.000.010.010.01
1.71.71.71.71.7
17015313512511385
0.010.010.010.010.010.01
2.92.82.82.72.72.6
20318817316615814012092
0.010.010.010.010.020.020.020.02
4.33.93.83.83.83.73.73.6
22621319919318617315513710189
0.020.020.020.020.020.020.020.020.020.02
5.44.94.94.84.84.84.74.64.54.4
0.6
0.5
0.4
80
0.3
60
0.2
40
Static Pressure (in. wg)
20
0
0.1
0.0
060120180240300360
0100200300400500600
Direct Drive RPM
E-1050-RPM G-1300-RPM D-1550-RPM VG-1725-RPM
Static Pressure in Inches wg
RPM (Direct)
RPM (Vari-Green)
Density 0.075 lb/ft
Density 1.2 kg/m
E
V
R
U
C
M
E
T
S
Y
S
S
060-VG
I
H
T
F
O
T
060-D
F
E
L
E
H
T
O
060-G
T
T
C
E
L
E
S
060-E
T
O
N
O
D
3
3
Volume (cfm)
3
Volume (m
/hr)
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
15
Roof Downblast Exhaust
Size-070: G
193⁄8
(492)
140
120
100
*121⁄8
(308)
3 (76)
13⁄4(44)
Static Pressure (Pa)
17
(432)
Damper Size = 8 x 8 (203 x 203)
Roof Opening = 10½ x 10½ (267 x 267)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 15 lbs. (7 kg)
All dimensions in inches (millimeters). *May be greater depending on motor.
^Weight shown is largest cataloged Open Drip-Proof motor.
Direct
Motor HPFan
Drive
070
VG1/10
E-1/100 1050
G-1/60 1300
D-1/30 1550
RPM
1725
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
00.050.10.1250.150.20.250.30.3750.4
253226195179152
0.010.010.010.010.01
2.72.11.71.51.2
314292269257244214171
0.010.010.020.020.020.020.02
4.13.73.43.33.22.92.6
374356337327317297274244190
0.020.020.020.030.030.030.030.030.03
5.65.45.25.15.14.94.74.54.1
416400383375366348329309270253
0.030.030.030.030.030.040.040.040.040.04
6.86.76.76.66.66.56.36.25.95.7
0.6
0.5
0.4
80
0.3
60
0.2
40
Static Pressure (in. wg)
20
0
0.1
0.0
090180270360450540
0200400600800
Direct Drive RPM
E-1050-RPM G-1300-RPM D-1550-RPM VG-1725-RPM
Static Pressure in Inches wg
RPM (Direct)
RPM (Vari-Green)
Density 0.075 lb/ft
Density 1.2 kg/m
E
V
R
U
C
070-VG
M
E
T
S
Y
S
S
I
070-D
H
T
F
O
T
F
E
L
E
H
T
070-G
O
T
T
C
E
L
E
S
T
O
N
O
D
070-E
3
3
Volume (cfm)
3
Volume (m
/hr)
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
16
Roof Downblast Exhaust
Size-080: G
213⁄4
(552)
*14
(371)
5
⁄8
220
200
180
160
140
120
100
4 (102)
13⁄4(44)
Static Pressure (Pa)
17
(432)
Damper Size = 10 x 10 (254 x 254)
Roof Opening = 12½ x 12½ (318 x 318)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 19 lbs. (9 kg)
All dimensions in inches (millimeters). *May be greater depending on motor.
^Weight shown is largest cataloged Open Drip-Proof motor.
Direct
Motor HPFan
Drive
080
VG1/10
E-1/40 1050
G-1/30 1300
D-1/20 1550
RPM
1725
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
00.10.1250.150.20.250.30.3750.50.625
335268249230189134
0.010.020.020.020.020.02
3.83.73.63.73.94.2
415361348333303272239174
0.020.030.030.030.030.030.030.03
5.45.45.45.45.45.55.65.9
495450439427404379354314237
0.040.040.040.050.050.050.050.060.06
7.37.37.37.37.37.27.37.37.6
551511501490469449426392332260
0.050.060.060.060.060.070.070.070.080.08
9.19.19.19.198.98.98.99.19.4
0.9
0.8
0.7
0.6
0.5
0.4
80
60
40
20
0
0.3
Static Pressure (in. wg)
0.2
0.1
0.0
0100200300400500600
01002003004005006007008009001000
Direct Drive RPM
O
N
O
D
E-1050-RPM G-1300-RPM D-1550-RPM VG-1725-RPM
Static Pressure in Inches wg
RPM (Direct Drive)
E
V
R
U
C
M
080-VG
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
L
E
H
T
O
T
T
C
E
L
E
S
T
080-D
080-G
080-E
RPM (Vari Green)
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
Volume (cfm)
3
/hr
Volume ( )
m
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
17
Roof Downblast Exhaust
Sizes-090 • 095: G
213⁄4
(552)
200
5
17
4 (102)
*14
(371)
13⁄4(44)
⁄8
150
100
Static Pressure (Pa)
50
(432)
Damper Size = 10 x 10 (254 x 254)
0
Roof Opening = 12½ x 12½ (318 x 318)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 22 lbs. (10 kg)
All dimensions in inches (millimeters). *May be greater depending on motor.
^Weight shown is largest cataloged Open Drip-Proof motor.
Direct
Motor HPFan
Drive
090
VG1/10
095
VG-
1/6
E-1/40 1050
G-1/25 1300
D-1/15 1550
E-1/30 1050
G-1/12 1300
D-1/81550
RPM
1725
1725
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
CFM
BHP
Sones
00.10.1250.150.20.250.30.3750.50.625
520441420398351293
0.010.020.020.020.020.02
43.93.944.14.2
644580565549515478440373
0.030.030.040.040.040.040.040.05
5.45.45.45.45.45.55.55.6
768714701688662633605557473338
0.050.050.060.060.060.060.070.070.080.07
7.67.57.57.57.57.47.47.47.47.8
855806794782759735709671600522
0.060.070.070.080.080.080.090.090.100.11
9.79.59.59.59.59.49.49.29.19.1
717606570534468389290
0.030.030.040.040.040.040.03
5.44.54.54.54.44.54.6
888802780754695640586493184
0.060.060.060.060.070.070.070.070.05
7.66.86.76.66.56.46.46.46.8
1059987969950912863814745623474
0.100.100.100.110.110.110.110.120.120.11
9.69.49.39.298.88.78.78.78.7
117911141098108110481013969903800688
0.130.140.140.140.150.150.150.160.160.16
11.411.411.411.511.411.21110.911.311.3
1.0
095-VG
E
090-VG
V
R
0.8
0.6
0.4
Static Pressure (in. wg)
0.2
D
0.0
020040060080010001200
U
C
M
E
T
095-D
S
Y
090-D
S
S
I
H
T
F
O
095-G
T
F
090-G
E
L
E
H
T
O
T
T
C
E
L
E
S
T
O
N
O
095-E
090-E
RPM
RPM (Vari Green)
Density 0.075 lb/ft
Density 1.2 kg/m
Volume (cfm)
0500100015002000
Volume ( )
Direct Drive RPM
m3/hr
E-1050-RPM G-1300-RPM D-1550-RPM VG-1725-RPM
Static Pressure in Inches wg
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
18
Roof Downblast Exhaust
Size-097: GB • G
Previously Size- GB-071
243⁄8
(619)
3
⁄4
*23
(603)
43⁄8(111)
13⁄4(44)
19
(483)
Damper Size = 12 x 12 (305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 54/60 lbs. (24/27 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
097
VG-
1/4
C-1/8860
1/6
or
1/8
B-1/61140
A-1/4
Fan
RPM
720
790
930
1000
1070
1285
1435
1580
1725
00.1250.250.3750.50.6250.750.87511.125
CFM
157107
BHP
0.010.01
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
1.82.0
CFM
17212870
BHP
0.010.010.01
2.32.32.2
CFM
187148101
BHP
0.020.020.02
2.82.72.7
CFM
203166124
BHP
0.020.020.02
3.33.43.2
CFM
218184146100
BHP
0.030.030.030.02
3.94.03.93.6
CFM
233202167130
BHP
0.030.030.030.03
4.64.74.54.2
CFM
248220187152109
BHP
0.040.040.040.040.03
5.35.45.14.94.7
CFM
280255228197166127
BHP
0.060.060.060.050.050.05
6.86.76.66.36.05.9
CFM
313292265240212185151
BHP
0.080.080.080.080.080.070.07
8.08.07.97.67.37.16.9
CFM
344324302281255230205177140
BHP
0.100.100.100.100.100.100.100.090.09
9.59.59.49.18.88.58.38.17.9
CFM
376356339316297273250227205171
BHP
0.130.130.130.130.130.130.130.130.120.12
11.311.211.210.810.510.29.99.79.59.3
300
250
200
150
100
Static Pressure (Pa)
50
1.4
097-A
1.2
1.0
0.8
0.6
097-B
0.4
Static Pressure (in. wg)
097-C
0.2
0
0.0
050100150200250300350400
720
1/8 HP
1435
1140
860
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
1/6 HP
1725
3
1/4 HP
3
Volume (cfm)
0100200300400500600
Volume (m3/hr)
Direct Drive RPM
RPM B-1140-RPM A-1725-RPM VG-1725-RPM
-
C-860
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/3371)
3
MAXIMUM RPM = 1725
TIP SPEED (ft/min) = RPM x 2.929
MAXIMUM MOTOR FRAME SIZE = 56
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
19
Roof Downblast Exhaust
Size-098: GB • G
Previously Size- GB-081
243⁄8
(619)
3
⁄4
*23
(603)
43⁄8(111)
13⁄4(44)
19
(483)
Damper Size = 12 x 12 (305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 54/60 lbs. (24/27 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
098
VG-
1/4
C-1/8860
1/6
B-1/61140
1/4A-1/41725
Fan
RPM
720
790
930
1000
1070
1315
1490
1670
00.1250.250.3750.50.6250.750.87511.125
CFM
361272
BHP
0.010.01
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
3.02.7
CFM
396315181
BHP
0.020.020.02
3.53.23
CFM
431358261
BHP
0.020.020.02
4.03.73.4
CFM
466399323
BHP
0.030.030.03
4.64.44.0
CFM
501439372259
BHP
0.030.040.040.04
5.35.14.74.4
CFM
536478416338
BHP
0.040.040.050.05
5.95.85.45.0
CFM
571517460396283
BHP
0.050.050.060.060.05
6.66.56.15.75.5
CFM
659612564513456362
BHP
0.080.080.080.090.090.08
8.38.17.87.47.06.9
CFM
746706663621574525452353
BHP
0.110.120.120.120.120.120.120.11
10.19.99.89.38.98.68.58.4
CFM
836800763725686645603550466377
BHP
0.160.160.160.170.170.170.170.180.170.16
12.011.911.711.411.010.710.410.110.09.9
CFM
864829793756719679640592527441
BHP
0.170.180.180.180.190.190.190.190.190.18
12.712.512.312.111.711.411.110.810.610.5
Static Pressure (Pa)
F
O
T
F
E
L
E
Static Pressure (in. wg)
O
D
Direct Drive RPM
H
T
O
T
T
C
E
L
E
S
T
O
N
C-860-RPM B-1140-RPM A-1725-RPM VG-1725-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/2985)
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
Volume (cfm)
Volume (m/hr )
3
MAXIMUM RPM = 1725
TIP SPEED (ft/min) = RPM x 2.929
MAXIMUM MOTOR FRAME SIZE = 56
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
20
Roof Downblast Exhaust
Size-099: GB • G
Previously Size- GB-091
243⁄8
(619)
3
⁄4
*23
(603)
43⁄8(111)
13⁄4(44)
19
(483)
Damper Size = 12 x 12 (305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 54/61 lbs. (24/28 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
099
VG-
1/4
C-1/8860
1/4
B-1/61140
A-1/41725
Fan
RPM
720
790
930
1000
1070
1285
1435
1580
00.1250.250.3750.50.6250.750.87511.125
CFM
546403
BHP
0.020.02
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
3.63.5
CFM
599471291
BHP
0.020.020.02
4.24.13.9
CFM
652536400
BHP
0.030.030.03
4.94.74.5
CFM
705598481
BHP
0.040.040.04
5.65.55.1
CFM
758659552414
BHP
0.040.050.050.05
6.46.25.85.6
CFM
811718621512
BHP
0.050.060.060.06
7.37.16.76.3
CFM
864777687590457
BHP
0.070.070.070.070.07
8.38.17.67.16.8
CFM
974897819736647526
BHP
0.090.100.100.100.110.10
9.59.49.08.58.27.9
CFM
10871018949877801721615404
BHP
0.130.140.140.140.150.150.150.12
10.710.610.410.09.69.39.08.4
CFM
1197113510721009941872799707583
BHP
0.170.180.190.190.190.200.200.200.19
12.112.011.911.511.210.910.610.39.8
CFM
130712501192113510761013949883806707
BHP
0.230.230.240.240.250.250.260.260.260.25
13.613.513.413.212.912.612.312.011.811.5
Static Pressure (Pa)
S
Y
S
S
I
H
T
F
O
T
F
E
L
E
H
T
Static Pressure (in. wg)
D
O
T
T
C
E
L
E
S
T
O
N
O
Direct Drive RPM
-
C-860
RPM B-1140-RPM A-1725-RPM VG-1725-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/2703)
E
V
R
U
C
M
E
T
Volume (cfm)
Volume (m/hr )
3
MAXIMUM RPM = 1725
TIP SPEED (ft/min) = RPM x 2.929
MAXIMUM MOTOR FRAME SIZE = 56
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
21
Roof Downblast Exhaust
Size-100: GB • G
Previously Size- GB-101 • G-103
243⁄8
(619)
3
⁄4
*23
(603)
43⁄8(111)
13⁄4(44)
19
(483)
Damper Size = 12 x 12
(305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 54/61 lbs. (24/28 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
100
VG-
1/4
1/4
1/3
C-1/8860
B-1/61140
A-1/41725
Fan
RPM
720
1000
1245
1350
1450
1555
1660
1800
00.1250.250.3750.50.6250.750.87511.25
CFM
610477
BHP
0.020.02
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
3.82.7
CFM
729623473
BHP
0.030.040.04
4.63.72.9
CFM
848753654481
BHP
0.050.050.060.05
5.54.84.43.4
CFM
966883805702507
BHP
0.070.080.090.090.08
6.66.05.75.24.1
CFM
1055978908824715
BHP
0.100.100.110.110.11
7.57.06.76.35.7
CFM
114410731006938851731
BHP
0.120.130.130.140.140.14
8.58.17.87.77.26.7
CFM
1229116210991041965878750
BHP
0.150.160.160.170.170.170.17
9.39.08.78.48.07.56.9
CFM
131812551196114010791005917791
BHP
0.190.190.200.210.220.220.220.21
10.210.09.79.48.98.48.07.5
CFM
1407134812921238118711221050963841
BHP
0.230.230.240.250.260.260.260.260.25
11.411.110.710.410.19.69.18.78.1
CFM
14621405135112981250119311261052955
BHP
0.250.260.270.280.290.290.290.290.29
12.211.911.511.210.910.310.09.59.0
CFM
152514711419136813211270120911421065793
BHP
0.290.300.300.310.330.330.330.330.330.30
13.312.812.512.412.211.410.910.610.29.3
Static Pressure (Pa)
S
I
H
T
F
O
T
F
E
L
E
H
T
Static Pressure (in. wg)
D
O
T
T
C
E
L
E
S
T
O
N
O
Direct Drive RPM
C-860-RPM B-1140-RPM A-1725-RPM VG-1725-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/2593)
E
V
R
U
C
M
E
T
S
Y
S
1350
Volume (cfm)
Volume (m /hr )
3
MAXIMUM RPM = 1800
TIP SPEED (ft/min) = RPM x 2.913
MAXIMUM MOTOR FRAME SIZE = 56
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
22
Roof Downblast Exhaust
Size-100HP: GB • G
Previously Size- GB-101HP • G-103HP
243⁄8
(619)
3
⁄4
*23
(603)
43⁄8(111)
13⁄4(44)
19
(483)
Damper Size = 12 x 12
(305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 58/63 lbs. (26/29 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
100HP
VG-
1/2
1/4
A-1/41725
1/3
1/2
Fan
RPM
1300
1445
1590
1880
2025
2137
2229
2336
2500
2550
00.250.50.7511.251.51.7522.25
CFM
571477342
BHP
0.060.060.07
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
6.65.75.3
CFM
635553449243
BHP
0.080.090.090.08
8.47.576.3
CFM
699626537417
BHP
0.100.110.120.12
10.49.59.18.3
CFM
758692613521364
BHP
0.130.140.150.160.15
11.410.710.610.110
CFM
826767697618518337
BHP
0.170.180.190.200.200.18
12.712.211.91211.411.9
CFM
890836772702622515313
BHP
0.210.230.240.240.260.250.22
14.213.613.313.212.61211.4
CFM
939889830765693607474
BHP
0.250.260.280.280.290.300.28
15.414.814.414.213.413.112.1
CFM
979931875814748674574406
BHP
0.280.300.310.320.330.350.330.31
15.815.414.814.514.113.713.212.0
CFM
1026981928871809742661543358
BHP
0.330.340.360.360.370.390.400.370.34
16.41615.414.914.71414.113.513.6
CFM
109810561008956901840775695583416
BHP
0.400.420.430.450.450.460.480.480.460.42
17.817.416.916.715.815.514.815.215.716.6
CFM
112010781032982928869807735639497
BHP
0.430.440.460.470.470.490.510.520.500.47
18.217.917.417.216.316.115.115.616.217.2
Static Pressure (Pa)
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
L
E
H
T
Static Pressure (in. wg)
Direct Drive RPM
O
T
T
C
E
L
E
S
T
O
N
O
D
A-1725 RPM VG-2550-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/3165)
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
Volume (cfm)
3
Volume (m
/hr )
MAXIMUM RPM = 2550
TIP SPEED (ft/min) = RPM x 2.978
MAXIMUM MOTOR FRAME SIZE = 56
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
23
Roof Downblast Exhaust
Size-120: GB • G
Previously Size- GB-121 • G-123
243⁄8
(619)
3
⁄4
*23
(603)
43⁄8(111)
13⁄4(44)
19
(483)
Damper Size = 12 x 12 (305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 58/66 lbs. (26/30 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
120
VG-
1/2
C-1/8860
1/4
B-1/61140
1/3
1/2
A-1/21725
Fan
RPM
580
720
1000
1265
1395
1475
1550
1635
00.1250.250.3750.50.6250.7511.251.5
CFM
704515
BHP
0.020.02
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
3.23.3
CFM
873735523
BHP
0.030.040.04
4.24.34.1
CFM
1043932796580
BHP
0.050.060.060.06
5.45.55.25.2
CFM
121311191013883694
BHP
0.080.090.090.100.09
6.76.86.76.46.4
CFM
1383130012131112993831
BHP
0.120.130.140.140.140.14
8.48.48.48.17.97.8
CFM
153514601384129912041093950
BHP
0.160.170.180.190.190.200.19
10.210.110.19.99.79.69.4
CFM
1692162515571484140413151214907
BHP
0.210.230.240.250.260.260.260.24
12.512.412.312.212.011.711.511.3
CFM
17891726166115941521144113561132
BHP
0.250.270.280.290.300.310.310.31
13.513.413.313.213.012.712.412.0
CFM
18801820175916961629155514751289974
BHP
0.290.310.320.330.340.350.360.360.33
14.614.514.314.214.013.813.512.912.4
CFM
198319261868181017471680160814461231
BHP
0.340.360.370.390.400.410.420.430.41
15.915.815.615.415.315.014.813.913.4
CFM
2093203819841928187118101743160014261180
BHP
0.400.420.440.450.460.470.480.500.500.47
17.417.217.016.816.716.416.215.514.914.0
Static Pressure (Pa)
Static Pressure (in. wg)
T
O
N
O
D
Direct Drive RPM
C-860
L
E
H
T
O
T
T
C
E
L
E
S
-
RPM B-1140-RPM A-1725-RPM VG-1725-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/2170)
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
Volume (cfm)
Volume (m /hr )
3
MAXIMUM RPM = 1725
TIP SPEED (ft/min) = RPM x 3.420
MAXIMUM MOTOR FRAME SIZE = 56
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
24
Roof Downblast Exhaust
Size-130: GB • G
Previously Size- GB-131 • G-133
283⁄8
(721)
3
⁄4
*23
(603)
4 (102)
13⁄4(44)
19
(483)
Damper Size = 12 x 12 (305 x 305)
Roof Opening = 14½ x 14½ (368 x 368)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 62/67 lbs. (28/30 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
130
VG-
3/4
C-1/8860
1/4
B-1/61140
1/31440
1/2
3/4A-1/21725
Fan
RPM
580
720
1000
1250
1315
1600
1685
00.1250.250.3750.50.6250.7511.251.5
CFM
823626
BHP
0.020.02
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
4.54.5
CFM
1022879650
BHP
0.040.040.04
5.45.45.2
CFM
12211106962727
BHP
0.060.070.070.07
6.66.56.36.0
CFM
1419132312131075867
BHP
0.100.110.110.120.11
8.18.07.77.47.0
CFM
161815351444134012111031
BHP
0.150.160.160.170.170.17
10.09.89.69.28.88.5
CFM
177416981617152814261133
BHP
0.190.20.210.220.230.22
12.011.711.311.010.59.7
CFM
1866179417181637154514351305
BHP
0.220.230.240.250.260.260.26
13.212.812.512.111.711.210.9
CFM
20441978191118381759167415711299
BHP
0.290.310.320.330.340.340.350.34
15.015.015.115.114.513.913.412.5
CFM
227122122152208820231873178316861425
BHP
0.400.420.430.440.450.470.470.480.47
16.216.015.815.615.314.614.213.913.2
CFM
2391233522792219215820932020185716541312
BHP
0.470.480.500.510.520.540.550.560.560.52
16.916.616.316.015.715.114.814.513.913.5
CFM
2448239323382281222021592089193517461474
BHP
0.500.520.530.550.560.570.580.590.600.58
17.417.016.716.315.915.615.414.914.313.8
Static Pressure (Pa)
Static Pressure (in. wg)
T
O
N
O
D
Direct Drive RPM
C-860
E
H
T
O
T
T
C
E
L
E
S
-
RPM B-1140-RPM A-1725-RPM VG-1725-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/2047)
A
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
L
Volume (cfm)
Volume (m /hr )
3
MAXIMUM RPM = 1725
TIP SPEED (ft/min) = RPM x 3.436
MAXIMUM MOTOR FRAME SIZE = 56
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
25
Roof Downblast Exhaust
Size-140: GB • G
Previously Size- GB-141 • G-143
283⁄8
(721)
3
⁄4
*23
(603)
4 (102)
13⁄4(44)
22
(559)
Damper Size = 16 x 16 (406 x 406)
Roof Opening = 18½ x 18½ (470 x 470)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 77/86 lbs. (35/39 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
140
VG-
3/4
1/4
C-1/8860
1/3B-1/31140
1/2
VG-1
3/4
1A-11725
Fan
RPM
580
720
950
1075
1265
1360
1450
1550
00.1250.250.3750.50.7511.251.51.75
CFM
1076855
BHP
0.040.04
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
Sones
4.74.7
CFM
13361169938
BHP
0.070.080.08
5.85.95.2
CFM
1595145713041085
BHP
0.120.130.130.13
7.17.06.66.1
CFM
17621636150613441085
BHP
0.160.170.180.180.17
8.18.07.67.16.5
CFM
19941882177116471490
BHP
0.240.250.260.260.26
10.09.99.48.98.4
CFM
211520081905179216601233
BHP
0.280.300.310.310.310.29
11.010.910.49.99.48.2
CFM
2347225021582062195516771048
BHP
0.390.400.410.420.420.420.35
12.912.712.311.911.410.48.8
CFM
2523243323472259216619431602
BHP
0.480.500.510.520.520.530.51
14.614.313.913.513.112.211.0
CFM
26902606252424432358216519051501
BHP
0.580.600.610.630.630.640.630.59
16.215.915.615.214.713.812.911.7
CFM
287527972719264425662396219119101297
BHP
0.710.730.740.760.770.780.790.760.65
17.718.017.417.216.815.014.814.814.9
CFM
3200312930592991292327822619242721841815
BHP
0.981.001.021.031.051.071.071.091.061.00
20.021.020.019.919.618.517.217.016.816.7
Static Pressure (Pa)
S
I
H
T
F
O
T
F
E
L
E
H
T
O
T
Static Pressure (in. wg)
D
Direct Drive RPM
C-860
T
C
E
L
E
S
T
O
N
O
RPM B-1140-RPM A-1725-RPM VG-1725-RPM
-
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/1676)
MAXIMUM MOTOR FRAME SIZE = 145T
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
E
V
R
U
C
M
E
T
S
Y
S
Volume (cfm)
Volume (m /hr )
3
MAXIMUM RPM = 1725
TIP SPEED (ft/min) = RPM x 3.829
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
26
Roof Downblast Exhaust
Size-140HP: GB • G
Previously Size- GB-141HP • G-143HP
283⁄8
(721)
3
⁄4
*23
(603)
4 (102)
13⁄4(44)
22
(559)
Damper Size = 16 x 16
Roof Opening = 18½ x 18½ (470 x 470)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 75/83 lbs. (34/38 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Motor HP
BeltDirect
140HP
VG-
B-1/41140
1/4
3/4
1/31655
A-1/21725
1/2
3/4
Fan
RPM
1020
1320
1500
1812
1900
2050
2170
2200
.5.7511.251.51.7522.252.52.75
CFM
488
BHP
0.08
Sones
6.3
CFM
645413
BHP
0.110.11
Sones
7.77.6
CFM
837700486
BHP
0.170.180.17
Sones
10.39.89.9
CFM
1009903774592
BHP
0.240.260.260.25
Sones
13.112.312.212.4
CFM
11511064959833668
BHP
0.320.340.350.350.34
Sones
15.014.113.313.113.6
CFM
121311321035932784588
BHP
0.360.380.390.390.390.37
Sones
16.215.414.714.214.314.9
CFM
1289121311271030911763545
BHP
0.410.430.450.460.450.450.41
Sones
17.817.216.615.815.615.916.6
CFM
13661294121811271033901753
BHP
0.470.490.510.530.530.520.51
Sones
19.018.418.017.416.816.717.0
CFM
149514301361128512001113991857672
BHP
0.580.610.630.650.660.660.660.650.61
Sones
21.020.019.819.318.818.618.318.318.6
CFM
15981536147214071328124811631045919757
BHP
0.680.710.730.760.770.780.790.780.770.74
Sones
22.022.021.021.021.021.021.020.019.719.8
CFM
16231562150014361360128112001088968834
BHP
0.710.740.760.780.800.820.820.810.800.79
Sones
23.022.022.022.021.021.021.021.020.020.0
Static Pressure (Pa)
RPM (Belt)
RPM (Direct)
RPM (Vari-Green)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
2200
Static Pressure (in. wg)
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
L
E
H
T
O
T
T
C
E
L
E
S
T
O
N
O
D
Volume (cfm)
Volume (m/hr )
Direct Drive RPM
3
B-1140-RPM A-1725-RPM VG-2200-RPM
Static Pressure in Inches wg
MAXIMUM BHP AT A GIVEN RPM = (RPM/2351)
MAXIMUM RPM = 2200
TIP SPEED (ft/min) = RPM x 3.829
MAXIMUM MOTOR FRAME SIZE = 145T
3
3
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
27
Roof Downblast Exhaust
Size-160: GB • G
Previously Size- GB-161 • G-163
283⁄8
(619)
3
⁄4
*23
(603)
4 (102)
13⁄4(44)
22
(559)
Damper Size = 16 x 16
Roof Opening = 18½ x 18½ (470 x 470)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 101/88 lbs. (46/40 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
28
Roof Downblast Exhaust
Size-160HP: GB
Previously Size- GB-161HP
283⁄8
(721)
3
⁄4
*23
(603)
4 (102)
13⁄4(44)
22
(559)
Damper Size = 16 x 16 (406 x 406)
Roof Opening = 18½ x 18½ (470 x 470)
Shroud Thickness = 0.051 (1.3)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 88 lbs. (40 kg)
All dimensions in inches (millimeters). *May be greater depending on motor.
^Weight shown is largest cataloged Open Drip-Proof motor.
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
29
Roof Downblast Exhaust
Size-180: GB • G
Previously Size- G-183
351⁄2
(902)
*28
(711)
600
400
51⁄2(140)
200
13⁄4(44)
Static Pressure (Pa)
30
(762)
Damper Size = 18 x 18 (457 x 457)
0
Roof Opening = 20½ x 20½ (521 x 521)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 108/142 lbs. (49/64 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
30
Roof Downblast Exhaust
Size-180HP: GB
351⁄2
(902)
*28
(711)
51⁄2(140)
13⁄4(44)
30
(762)
Damper Size = 18 x 18 (457 x 457)
Roof Opening = 20½ x 20½ (521 x 521)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 142 lbs. (64 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
31
Roof Downblast Exhaust
)
Size-200: GB • G
Previously Size- G-203
351⁄2
(902)
30
(762)
51⁄2(140)
13⁄4(44)
*28
(711)
Static Pressure (Pa)
Static Pressure (in. wg)
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
L
E
H
T
O
T
T
C
E
L
E
S
T
O
N
O
D
RPM (Belt)
RPM (Direct)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
Damper Size = 18 x 18 (457 x 457)
Roof Opening = 20½ x 20½ (521 x 521)
Volume (cfm)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight G/GB = 119/144 lbs. (54/65 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
32
Roof Downblast Exhaust
Size-200HP: GB • G
351⁄2
(902)
30
(762)
51⁄2(140)
13⁄4(44)
*28
(711)
3 HP
2 HP
1 1/2 HP
1 HP
Static Pressure (Pa)
Static Pressure (in. wg)
3/4 HP
1/2 HP
O
D
H
T
F
O
T
F
E
L
E
H
T
O
T
T
C
E
L
E
S
T
700
O
N
S
I
Y
S
885
200HP-A
E
V
R
U
C
E
M
T
S
1255
1070
5 HP
1725
1440
RPM (Belt)
RPM (Direct)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
Damper Size = 18 x 18 (457 x 457)
Roof Opening = 20½ x 20½ (521 x 521)
Volume (cfm)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 166 lbs. (75 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
33
Roof Downblast Exhaust
Size-220: GB
423⁄4
(1086)
RPM (Belt)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
*311⁄2
(800)
53⁄4(146)
13⁄4(44)
34
(864)
Damper Size = 24 x 24 (610 x 610)
Roof Opening = 26½ x 26½ (673 x 673)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 164 lbs. (74 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
34
Roof Downblast Exhaust
Size-220HP: GB
423⁄4
(1086)
*311⁄2
(800)
53⁄4(146)
13⁄4(44)
34
(864)
Damper Size = 24 x 24 (610 x 610)
Roof Opening = 26½ x 26½ (673 x 673)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 186 lbs. (84 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
35
Roof Downblast Exhaust
(
)
Size-240: GB • G
423⁄4
(1086)
34
(864)
Damper Size = 24 x 24 (610 x 610)
Roof Opening = 26½ x 26½ (673 x 673)
53⁄4(146)
13⁄4(44)
*311⁄2
(800)
600
450
300
Static Pressure (Pa)
150
0
3.0
2.5
2.0
1.5
1/3 HP
1.0
1/4 HP
Static Pressure (in. wg)
0.5
0.0
1 HP
3/4 HP
1/2 HP
O
D
2 HP
1 1/2 HP
E
L
E
S
T
425
O
N
5 HP
E
V
R
U
C
M
E
T
S
Y
S
S
I
H
T
F
O
T
F
E
L
E
H
T
725
O
T
T
625
C
1140
240-B
910
825
525
RPM (Belt)
RPM (Direct)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
0 2 4 6 8 10 12
Volume (cfm x 1000)
3
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 165 lbs. (75 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
36
Roof Downblast Exhaust
Size-240HP: GB
423⁄4
(1086)
*311⁄2
(800)
53⁄4(146)
13⁄4(44)
34
(864)
Damper Size = 24 x 24 (610 x 610)
Roof Opening = 26½ x 26½ (673 x 673)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.040 (1.0)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 187 lbs. (85 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
37
Roof Downblast Exhaust
Size-260: GB
50
(1270)
*36
(914)
81⁄4(210)
13⁄4(44)
40
(1016)
Damper Size = 30 x 30 (762 x 762)
Roof Opening = 32½ x 32½ (826 x 826)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.051 (1.3)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 305 lbs. (138 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
38
Roof Downblast Exhaust
Size-300: GB • G
50
(1270)
480
*36
(914)
81⁄4(210)
13⁄4(44)
320
Static Pressure (Pa)
160
40
(1016)
0
Damper Size = 30 x 30 (762 x 762)
Roof Opening = 32½ x 32½ (826 x 826)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.051 (1.3)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 320 lbs. (145 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
39
Roof Downblast Exhaust
Size-300HP: GB
50
(1270)
*36
(914)
81⁄4(210)
13⁄4(44)
40
(1016)
Damper Size = 30 x 30 (762 x 762)
Roof Opening = 32½ x 32½ (826 x 826)
Shroud Thickness = 0.064 (1.6)
Motor Cover Thickness = 0.051 (1.3)
Curb Cap Thickness = 0.064 (1.6)
^Approximate Unit Weight = 320 lbs. (145 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
40
Roof Downblast Exhaust
Size-330: GB
583⁄4
(1492)
*381⁄2
(978)
87⁄8(225)
13⁄4(44)
46
(1168)
Damper Size = 36 x 36 (914 x 914)
Roof Opening = 38½ x 38½ (978 x 978)
Shroud Thickness = 0.080 (2.0)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.080 (2.0)
^Approximate Unit Weight = 385 lbs. (175 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
41
Roof Downblast Exhaust
Size-360: GB
583⁄4
(1492)
RPM (Belt)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
*381⁄2
(978)
87⁄8(225)
13⁄4(44)
46
(1168)
Damper Size = 36 x 36 (914 x 914)
Roof Opening = 38½ x 38½ (978 x 978)
Shroud Thickness = 0.080 (2.0)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.080 (2.0)
^Approximate Unit Weight = 415 lbs. (188 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
42
Roof Downblast Exhaust
Size-360HP: GB
583⁄4
(1492)
*381⁄2
(978)
87⁄8(225)
13⁄4(44)
46
(1168)
Damper Size = 36 x 36 (914 x 914)
Roof Opening = 38½ x 38½ (978 x 978)
Shroud Thickness = 0.080 (2.0)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.080 (2.0)
^Approximate Unit Weight = 460 lbs. (209 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
43
Roof Downblast Exhaust
Size-420: GB
651⁄4
(1657)
*44
(1118)
93⁄4(248)
13⁄4(44)
52
(1321)
Damper Size = 42 x 42 (1067 x 1067)
Roof Opening = 44½ x 44½ (1130 x 1130)
Shroud Thickness = 0.080 (2.0)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.100 (2.5)
^Approximate Unit Weight = 495 lbs. (225 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
44
Roof Downblast Exhaust
Size-480: GB
733⁄4
(1873)
*471⁄4
(1200)
111⁄4(286)
13⁄4(44)
58
(1473)
Damper Size = 48 x 48 (1219 x 1219)
Roof Opening = 50½ x 50½ (1283 x 1283)
Shroud Thickness = 0.080 (2.0)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.100 (2.5)
^Approximate Unit Weight = 623 lbs. (283 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
45
Roof Downblast Exhaust
Size-500: GB
83
(2108)
*503⁄4
(1289)
141⁄2(368)
13⁄4(44)
64
(1626)
Damper Size = 54 x 54 (1371 x 1371)
Roof Opening = 56½ x 56½ (1435 x 1435)
Shroud Thickness = 0.100 (2.5)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.100 (2.5)
^Approximate Unit Weight = 687 lbs. (312 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
46
Roof Downblast Exhaust
Size-540: GB
83
(2108)
RPM (Belt)
HP
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
*503⁄4
(1289)
141⁄2(368)
13⁄4(44)
64
(1626)
Damper Size = 54 x 54 (1371 x 1371)
Roof Opening = 56½ x 56½ (1435 x 1435)
Shroud Thickness = 0.100 (2.5)
Motor Cover Thickness = 0.064 (1.6)
Curb Cap Thickness = 0.100 (2.5)
^Approximate Unit Weight = 748 lbs. (339 kg)
All dimensions in inches (millimeters). *May be greater depending on
motor. ^Weight shown is largest cataloged Open Drip-Proof motor.
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects
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. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301.
Values shown are for installation type A: free inlet hemispherical sone levels.
Values shown are for installation type A: free inlet hemispherical sone levels.
47
Quick Delivery and Quick Build Programs
Greenheck’s Quick Delivery program provides many options
to help you meet your project’s schedule. Distribution centers
around the world ensure same-day pickup and same-day
shipment for orders in by 2 p.m. (CST). Hundreds of custom
products can be manufactured through our Quick Build program
in just days.
Please refer to the chart shown for model size and availability for
QD and QB programs.
Anywhere. Anytime.
Distribution centers are nearby
and fully stocked.
U.S.
California
Florida
North Carolina
Texas
Wisconsin
WORLDWIDE
Mexico
MANUFACTURING LOCATIONS
California
Kentucky
North Carolina
Oklahoma
Wisconsin
Mexico
1 HOUR
LOCAL STOCK
CUSTOMER
PICK UP
QD STOCK
SAME-DAY
OR NEXT DAY
SHIPMENTS
1-DAY
CUSTOM-BUILT
PRODUCTS
SHIPPED IN
ONE DAY
3-5-10-15-20
OR 25 DAYS
CUSTOM-BUILT
PRODUCTS SHIPPED
IN 3, 5, 10, 15, 20
OR 25 DAYS
STANDARD LEAD TIME
ALL GREENHECK PRODUCTS ARE
SHIPPED AS FAST AS POSSIBLE
FROM ONE OF OUR FIVE U.S.
MANUFACTURING PLANTS.