Greenheck Centrifugal Roof Downblast Exhaust Fans GB User Manual

Centrifugal Roof Downblast Exhaust Fans

Models G and GB

• General Clean Air • Light Contaminants

• Seismic • High Wind • Variable Volume

Performance data now included.

March

2013

Models G and GB

Spun Aluminum • Downblast

Centrifugal Roof Exhaust Fans

Contents

Model Comparison ......................3

Construction Features .................4-5

Emergency Smoke Control ...............6

Seismic ...............................6

High Wind & Hurricane ...................7

Vari-Green

Motor and Controls .........8-9

Demand Control Ventilation ...............9

Roof Curbs, Options, Accessories .....10-11

Typical Installations .................12-13

Model Number Code ...................13

Codes and Certifications

PERFORMANCE AND DIMENSIONS:

Models G-060-095 ..................14-17

Models G-097-G203 ................. 18-31

GB-071-200HP ..............18-32

Models GB-220-540 .................33-46

SPECIFICATIONS:

Vari-Green

Motors and Controls .....47

Direct Drive, Model G ...............48

High Wind & Hurricane, Seismic . . . 49

Belt Drive, Model GB ................50

High Wind & Hurricane,

Seismic & Smoke Control ........51

Quick Build Programs ..................52

Our Commitment ......................52

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 14 - 46.

High Wind Certiﬁcation

Miami-Dade NOA No. 12-0120.13 for high wind and hurricane zones

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

Seismic Certiﬁcation

OSHPD No. 0148-10 - Ofﬁce of Statewide Health Planning and Development (California)

IBC 2009 and 2012 - International Building Code

Models G and GB

Spun Aluminum • Downblast

Centrifugal Roof Exhaust Fans

Model Comparison

Location Mounting Airﬂow Application

Model

Drive

Type

Impeller Type

Performance

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 )

Belt

Direct

Centrifugal

Propeller/Axial

Mixed Flow

99 9 99999

99 9 999999

* Smoke Control available on models: 101, 101HP, 121, 131, 141, 141HP, 161, 161HP, 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

3.25in.wg (810 Pa) and 45,000 cfm (76,500 m

/hr).

• Most advanced motor cooling of any fan in its class.

• Performance as cataloged is assured. All fan sizes are tested in our AMCA Accredited Laboratory, and all models are licensed to bear the AMCA Sound and Air Performance seals.

• UL Listed for electrical.

• Greenheck subjects these products to extensive life testing, assuring you that the fans will provide years of reliable performance.

Maximum Volume

(cfm)

Maximum Static

Pressure (in. wg)

6,308 1.75 $

44,700 3.25 $

Relative Cost

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

High Pressure, GB-HP and G-HP

• For long and/or high resistance ductwork

• Low volume/high pressure

Construction Features

Models G and GB

Standard Construction Features

An aluminum, backward-inclined, non-overloading centrifugal wheel is utilized to

Wheel

Disconnect

Switch

Fan Shaft

Bearings

Motor Carefully matched to the fan load and is mounted out of the airstream.

generate high-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).

(NEC) and are either UL Listed or Recognized.

Motor Cover

Motor Cooling

Lifting Points Various 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

Nameplate Permanent stamped aluminum plate for exact model and serial number identification.

Galvanized

Birdscreen

Fan Shroud

Constructed of aluminum and attached with fasteners that provide 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 Holes Curb cap has prepunched mounting holes to ensure correct attachment to the roof.

High Wind Construction Features

Internal Supports

Reinforced

Wind Band

Roof Curb (page 10)

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

MODEL G DIRECT DRIVE

DRIVE FRAME

(BELT DRIVE)

MODEL GB BELT DRIVE

Applications

to ens

ser

G and GB models

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).

GB smoke control models are:

101, 101-HP, 121, 131, 141, 141-HP, 161, 161-HP, 200, 240, 300, 360, 420, 480

Seismic - G and GB

• 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

⁄2 inches

(1334 mm) from curb cap to top of 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 non-structural 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 healthcare 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 No. 0148-10

State Licensed P.E. Calculations

Certified Independent Third-Party Testing

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.

When using the fans in applications which are not covered by California OSHPD standards, Greenheck models G and GB have been certified by a third party engineering firm to IBC 2009, 2012 and ASCE 7-05 standards. These engineers hold professional engineering (P.E.) licenses in all 50 states, so no matter where your job is located, you are backed by a P.E. signature for your state.

All Greenheck seismically certified fan models have gone through extensive testing procedures. Greenheck models G and GB have been certified to IBC 2009, 2012, ASCE 7-05 and California OSHPD standards through both engineering calculations and shake table testing of all models by independent third party engineering firms.

Applications

G and GB models

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 75mph. and can exert a force of 75poundspersquarefoot of pressure—or over 900pounds 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.

Protocols designed to protect against wind-borne debris and severe wind-loads:

Structural Performance Load

Miami-Dade County Test Protocols

Miami-Dade NOA Numbers

Florida Product Approval

State Licensed P.E. Calculations

A static load that is 1.5times 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).

Greenheck worked with Miami-Dade County to outline a High Velocity Hurricane Zone standard for rooftop fans. Greenheck model USGF was the first rooftop fan certified and approved by the MiamiDade Building Code Compliance office and Texas Department of Insurance for use in hurricane zones. Models G and GB have been certified by an independent third party to the ASTM E-330 Static Pressure Difference Standard, Florida Building Code Test Protocol TAS-201 (large missile impact), 202 (static pressure difference) and 203 (cyclic pressure) Static Pressure Difference.

The certifications can be viewed on the Miami-Dade County website under the NOA numbers listed here. Models G and GB are the first downblast aluminum fans in the industry that have received a Miami-Dade NOA for high wind and hurricane zones. Miami-Dade NOA 12-0120.13 for models G and GB.

Florida Product Approval ensures that products which have been approved can be used anywhere in the State of Florida which are not governed by the Miami-Dade County high wind regulations. More information can be found on the Florida Building Code website. Florida Product Approval FL13225.1 for models G and GB

Structural calculations performed by a licensed Professional Engineer (P.E.) on models G and GB include Finite Element Analysis (FEA) and a stamped P.E. report of the fans compliance to ASCE 7-05 Minimum Design Loads for Buildings and Other Structures Standard and the Florida Building Code. The ASCE 7-05 Standard meets the IBC, Florida and Miami-Dade codes.

U.S. continent

averaged

tornado frequency.

Atlantic, Gulf and Paciﬁc history of major hurricane tracks.

Computational Fluid Dynamics (CFD)

Finite Element Analysis (FEA)

All Greenheck high wind models have been analyzed using Computational Fluid Dynamics (CFD). CFD is computer software designed to simulate the flow of high speed winds over the surface of objects. The software records the force profile exerted on the fan so it can be utilized in Finite Element Analysis (FEA).

Utilizing the results from CFD analysis, Greenheck can accurately predict the stress, strain, and deflection resulting from high wind loads. Greenheck high wind units have been proven to withstand high winds through Finite Element Analysis utilizing CFD results.

Vari-Green® Motor Option

Model G

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 G fans, all the CFM and static pressure ranges of a belt drive can be attained with the beneﬁts of a direct drive.

Motor Information

HP RPM Volts Phase FLA Enclosure

1/6 1725 115 Single 3.1 TENV 1/4 1725 115 Single 3.9 ODP 1/2 1725 115 Single 6.2 ODP 1/2 2500 115 Single 6.5 ODP 3/4 1725 115 Single 10.1 ODP 3/4 2200 115 Single 11.3 ODP

1 1725 115 Single 12.4 ODP 1 1725 115/208-230 Single 2 1725 208-230 Single 12.0 TEFC

12.0/6.0

TEFC

Beneﬁts

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.

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.

• 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.

Vari-Green Advantages

• Initial cost is similar to a belt drive

• Lower operating cost

• No maintenance, no belts, pulleys or bearings

• Easy RPM adjustment

Features

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.

121

Comparisons: Belt, Direct Drive with PSC

and Direct Drive with Vari-Green

Motor Turndown Comparison

600

500

400

300

200

INPUT POWER (WATTS)

100

0 350

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

CUBE-

GB-

121

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-121 is estimated at $65/yr.

Note: Example is based on a relative cost. Use and installation variables may produce different results.

CUE-

121-A5

123-A5

50% 75% 100%

G-123

with PSC

Not recommended

GB-123

Single Phase*

FAN SPEED (RPM)

G-

CUE-

G-

121-VG

123-VG

Energy Savings

G-123 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 in turn lessens the amount of conditioned air exhausted and further reduces total operating costs associated with air conditioning and heating in multistoried buildings such as 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

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 preprogramed and easy to install for applications that include venting dryers, bathrooms, residential type kitchen space or industrial process exhaust.

Contact fans@greenheck.com for more information.

Daily Operating Comparison: Variable Volume and Constant Volume

Hypothetical

Variable Volume - Load Shape

100

$$$$$$$$$$$$$$$$$$$$$$$$

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

% of Operation

Series 1

Demand-controlled ventilation offers significant energy savings by

exhausting only the necessary amount of air throughout the day.

Constant Volume - Load Shape

100

80 60 40 20

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

% of Operation

Series 2

Note: A standard VFD compatible motor can also function within a Variable Volume system.

(Hotel Bathroom)

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 with Integral Transformer

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 for energy conservation.

Constant Pressure Control - Indoor - Control Vari-

Green motor via static (variable volume) or velocity (constant CFM) pressure on the inlet or outlet side of the fan. Optional one or two duct or room probes for use in:

• Multifamily structures - Apartments, condos, hotels; clothes dryers, residential kitchens and bathrooms.

• Institutional facilities - Schools, prisons, multistory ofﬁce buildings; bathrooms.

Constant Pressure Control - Outdoor

Control a Vari-Green motor via static pressure on the inlet side of the fan. Includes one duct probe and transducer for use in:

• Multifamily structures - Apartments, condos, hotels; residential kitchen, dryer facilities and bathrooms.

• Institutional facilities - Schools, prisons, multistory.

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 CO

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 32 to 120°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.

Options and Accessories

Roof Curbs

Prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan, the curb and roof opening. All curbs are insulated with ﬁberglass. A wide variety of roof curbs are available, including: ﬂanged, pitched and sound-absorbing.

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 assure proper sealing when attached to a curb.

Curb Extensions

Extensions raise the fan discharge above the rooﬂine 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.

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 in height. GPFP and GPFR are available up to 24 inches in height.

Severe Duty Curbs – Designed for heavy compression loads exceeding 1,000 lbs. and carry a 130 psf wind-load rating.

GPFHL (Heavy Load) - 14 gauge galvanized steel with internal vertical support members and a 5-inch ﬂashing ﬂange.

GPFHD (Heavy Duty) - 12 gauge galvanized steel with internal vertical support members and a double thick 5-inch ﬂashing ﬂange.

GPFHL and HD are 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.

For additional severe duty information, refer to the Greenheck High Wind brochure.

Tie-Down Points

Four brackets located on the shroud for securing the fan in high wind applications. Cables and anchors by others.

Options and Accessories

Speed Controllers for Standard Motors

Available for use with shaded pole and permanent split capacitor (PSC) open 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 will be provided with 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/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

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.

Primer is applied at the factory to allow

PRIMER

for ﬁnal ﬁnish in the ﬁeld.

Permatector™ is our standard coating.

PERMATECTOR

Typically used for applications that require corrosion resistance in indoor and outdoor environments.

Hi-Pro Polyester is resistant to salt

HI-PRO

POLYESTER

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.

Baked Enamel Decorative Coatings

are heat cured enamels applied either as wet paints or electrostatic powders. Customers can choose from 16 standard decorative colors or color match any color.

Typical Installations

Models G and GB

General Clean Air (figure 1)

Models G and GB exhaust fans are designed to meet the needs of general clean air applications. Tests were conducted to assure 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. Local code authorities should be consulted 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 pg. 14)

• 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 1⁄2inch (13 mm) on each side, less than the unit curb cap to allow for roofing and flashing.

Note: The typical installations shown are recommendations based on national codes. Local authority may supersede these recommendations.

⁄2 inches (3⁄4 inch on

figure 1

Wiring by Others

figure 2

1/2 in. (13 mm)

3/4 in.

(19 mm)

Wiring by

Others

/4 in. (32 mm)

/4 in.

(32 mm)

Damper

Recommended

Duct and

Damper Size

Recommended

Roof Opening

4 in. (102 mm)

From Curb Edge

Damper

Recommended

Duct and

Damper Size

Recommended

Roof Opening

Factory Wired from Motor to Disconnect

8 or 12 in.

(203 or 305 mm)

/4 in.

(32 mm)

1/4 in. (6 mm) Fastener

8 - 24 in.

(203 - 610 mm)

GPF or SD Curb

11/4 in. (32 mm)

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

Typical Installations

Models G and GB

Fan Inlet Connections

In order to assure proper fan performance, caution must be exercised 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 assure

optimum performance.

Provide uniform airﬂow at fan inlet and through

the damper to assure optimum performance.

Dampers must open fully. Use motorized

dampers in low airﬂow applications to reduce losses.

Avoid sharp turns or entrance conditions which

cause uneven ﬂow. Use turning vanes in elbows to reduce adverse effects.

Good

Poor

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 - 240 HP - VG/5/A - X

X = UL 705 F = UL Smoke

Control Systems

Configuration

G - Direct Drive GB - Belt Drive

Fan Size

060 through 540

Wheel Pressure Level

HP - High Pressure

VG = Vari-Green

(Direct Drive only)

Motor HP (Belt Drive only)

6 = 1/6 10 = 1 50 = 5 4 = 1/4 15 = 1½ 75 = 7½ 3 = 1/3 20 = 2 100 = 10 5 = 1/2 30 = 3 150 = 15 7 = 3/4

Motor RPM (Direct Drive only)

A = 1725 D = 1550 B = 1140 E = 1050 C = 860 G = 1300

International

(See CAPS for performance)

K = 950 RPM J = 1475 RPM

Roof Downblast - Exhaust Direct Drive

G-060 • G-065

193⁄8

(492)

*121⁄8

(308)

140

120

100

3 (76)

13⁄4 (44)

Static Pressure (Pa)

(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.

Motor HPFan

Direct

Drive

060

VG-

1/6

065

VG-

1/6

E-1/200 1050

G-1/100 1300

D-1/60 1550

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

CFM BHP

Sones

CFM BHP

Sones

CFM BHP

Sones

CFM BHP

Sones

0 0.05 0.1 0.125 0.15 0.2 0.25 0.3 0.375 0.4

138 116 90 73 53

0.00 0.00 0.01 0.01 0.01

1.7 1.7 1.7 1.7 1.7

170 153 135 125 113 85

0.01 0.01 0.01 0.01 0.01 0.01

2.9 2.8 2.8 2.7 2.7 2.6

203 188 173 166 158 140 120 92

0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02

4.3 3.9 3.8 3.8 3.8 3.7 3.7 3.6

226 213 199 193 186 173 155 137 101 89

0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02

5.4 4.9 4.9 4.8 4.8 4.8 4.7 4.6 4.5 4.4

187 161 130 110 87

0.01 0.01 0.01 0.01 0.01

2.2 2.1 1.9 1.8 1.7

231 211 189 178 163 130 92

0.01 0.01 0.01 0.01 0.01 0.01 0.01

3.2 3.1 3 2.9 2.9 2.8 2.7

276 259 241 232 223 201 176 145 96

0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02

4.9 4.6 4.5 4.5 4.4 4.3 4.3 4.1 4

307 292 276 268 260 243 223 201 160 146

0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03

6.4 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7

0.6

0.5

0.4

0.3

0.2

Static Pressure (in. wg)

0.1

0.0

0 60 120 180 240 300 360

0 100 200 300 400 500 600

Direct Drive RPM

E-1050

Static Pressure in Inches wg

RPM (Direct) RPM (Vari-Green) Density 0.075 lb/ft Density 1.2 kg/m

065-G

060-G

065-E

060-E

060-D

065-VG

060-VG

065-D

Volume (cfm)

Volume (m

RPM G-1300-RPM D-1550-RPM

/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.

Roof Downblast - Exhaust Direct Drive

G-070 • G-075

193⁄8

(492)

140

120

100

*121⁄8

(308)

3 (76)

13⁄4 (44)

Static Pressure (Pa)

(432)

All dimensions in inches (millimeters). *May be greater depending on motor. ^Weight shown is largest cataloged Open Drip-Proof motor.

Motor HPFan

Direct

Drive

070

VG-

1/6

075

VG-

1/6

E-1/100 1050

G-1/60 1300

D-1/30 1550

E-1/80 1050

G-1/50 1300

D-1/25 1550

RPM

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

0 0.05 0.1 0.125 0.15 0.2 0.25 0.3 0.375 0.4

253 226 195 179 152

0.01 0.01 0.01 0.01 0.01

2.7 2.1 1.7 1.5 1.2

314 292 269 257 244 214 171

0.01 0.01 0.02 0.02 0.02 0.02 0.02

4.1 3.7 3.4 3.3 3.2 2.9 2.6

374 356 337 327 317 297 274 244 190

0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.03

5.6 5.4 5.2 5.1 5.1 4.9 4.7 4.5 4.1

416 400 383 375 366 348 329 309 270 253

0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04

6.8 6.7 6.7 6.6 6.6 6.5 6.3 6.2 5.9 5.7

297 260 222 200 176

0.01 0.01 0.01 0.01 0.01

3.6 3.1 2.9 2.8 2.6

367 338 309 293 277 241 195

0.02 0.02 0.02 0.02 0.02 0.02 0.02

4.1 3.9 3.7 3.7 3.7 3.6 3.5

438 413 389 377 364 337 309 277 214

0.03 0.03 0.03 0.04 0.04 0.04 0.04 0.04 0.03

6.1 5.8 5.6 5.4 5.3 5.1 4.9 4.9 4.8

487 465 443 432 421 399 374 349 306 292

0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

8.0 7.5 7.2 7.1 6.8 6.5 6.2 6.1 6.0 6.0

0.6

0.5

0.4

0.3

0.2

Static Pressure (in. wg)

0.1

0.0 0 90 180 270 360 450 540

0 200 400 600 800

Direct Drive RPM

E-1050-RPM G-1300-RPM D-1550-RPM

Static Pressure in Inches wg

RPM (Direct) RPM (Vari-Green) Density 0.075 lb/ft Density 1.2 kg/m

075-VG

070-VG

075-D

070-D

075-G

070-G

075-E

070-E

Volume (cfm)

Volume (m

/hr)

Roof Downblast - Exhaust Direct Drive

G-080 • G-085

213⁄4

(552)

4 (102)

*14

(371)

13⁄4 (44)

⁄8

220

200

180

160

140

120

100

Static Pressure (Pa)

(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.

Motor HPFan

Direct

Drive

VG-

1/6 or

1/4

VG-

1/6 or

1/4

080

E-1/40 1050

G-1/30 1300

D-1/20 1550

085

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

CFM BHP

Sones

CFM BHP

Sones

CFM BHP

Sones

CFM BHP

Sones

0 0.1 0.125 0.15 0.2 0.25 0.3 0.375 0.5 0.625

335 268 249 230 189 134

0.01 0.02 0.02 0.02 0.02 0.02

3.8 3.7 3.6 3.7 3.9 4.2

415 361 348 333 303 272 239 174

0.02 0.03 0.03 0.03 0.03 0.03 0.03 0.03

5.4 5.4 5.4 5.4 5.4 5.5 5.6 5.9

495 450 439 427 404 379 354 314 237

0.04 0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06

7.3 7.3 7.3 7.3 7.3 7.2 7.3 7.3 7.6

551 511 501 490 469 449 426 392 332 260

0.05 0.06 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08

9.1 9.1 9.1 9.1 9 8.9 8.9 8.9 9.1 9.4

398 326 307 286 240 179

0.01 0.02 0.02 0.02 0.02 0.02 4 3.9 3.9 3.9 4.1 4.3

493 436 420 405 375 340 302 233

0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04

5.5 5.3 5.3 5.3 5.3 5.3 5.4 5.5

588 541 528 515 490 464 439 394 308 168

0.04 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06

7.6 7.4 7.4 7.4 7.4 7.4 7.4 7.4 7.6 8.1

654 612 602 590 567 544 521 486 419 340

0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08 0.09

9.5 9.4 9.4 9.3 9.3 9.3 9.3 9.3 9.4 9.4

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Static Pressure (in. wg)

0.2

0.1

0.0 0 100 200 300 400 500 600

0 100 200 300 400 500 600 700 800 900 1000

Direct Drive RPM

E-1050

Static Pressure in Inches wg

RPM (Direct Drive)

085-VG

080-VG

085-D

080-D

085-G

080-G

085-E

080-E

RPM (Vari Green)

Density 0.075 lb/ft Density 1.2 kg/m

Volume (cfm)

/hr

Volume ( )

RPM G-1300-RPM D-1550-RPM VG-1725-RPM

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