Product Specification Guide
Model USGF Belt Drive Roof Upblast Centrifugal Exhaust Fan
Facility Services Subgroup: Division 23 Section 23 34 23

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Specifier Notes: This product specification guide is written in accordance to the Construction Specifications Institute (CSI) Format - 2004 Edition.

This section must be carefully reviewed and edited by the Engineer to meet the requirements of the project and local building code. Coordinate with other specification sections and the drawings.

Delete all unnecessary “Specifier Notes” when editing this section.

Note to User: This document is subject to copyright protection and is proprietary to Greenheck Fan Corporation.  However, Greenheck Fan Corporation authorizes the user a limited non-exclusive license to use this document or portions of it for the purpose of preparing written product specifications for the above CSI Master Format category.  All information in this document as provided by Greenheck Fan Corporation is informational in nature and is provided without representation or warranty of any kind as to the user or any other party, including, without limitation, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR NON-INFRINGEMENT.  To the greatest extent permitted by applicable law, Greenheck Fan Corporation assumes no liability, and User assumes all liability and risk, for the use or results from the use of this document or the information contained herein, whether as modified by the user or not.  Users should consult www.greenheck.com to verify that this document represents the most current version.

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1.	GENERAL
1.1	SUMMARY
A.	Section Includes: HVAC Power Ventilators
B.	Related Sections:
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Specifier Notes: Delete any sections below not relevant to this project; add others as required.
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1.	01 00 00 General Requirements
2.	07 00 00 Thermal and Moisture Protection
3.	09 00 00 Finishes
4.	23 00 00 Heating, Ventilating, and Air-Conditioning (HVAC)
5.	26 00 00 Electrical

1.2	REFERENCES
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Specifier Notes: Delete references from the list below that are not actually required by the text of the edited section.
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A.	Air Movement and Control Association Inc. (AMCA):
1.	99 - Standards Handbook
2.	200 - Publication, Air Systems
3.	201-90 - Publication, Fans and Systems
4.	202-88 - Publication, Troubleshooting
5.	203-90 - Publication, Field Performance Measurement of Fan Systems
6.	211-05 - Publication, Certified Ratings Program – Product Rating Manual for
   Fan Air Performance
7.	300-96 - Standard Reverberant Room Method for Sound Testing of Fans
8.	311-05 - Publication Certified Ratings Program – Product Rating Manual for
   Fan Sound Performance
9.	99-0401-86 - Classification for Spark Resistant Construction
10.	99-2408-69 - Operating Limits for Centrifugal Fans
B.	Air Movement and Control Association Inc. (AMCA), American National Standards
  Institute (ANSI):
1.	204-05 - Standard Balance Quality and Vibration Levels for Fans
2.	210-99 - Standard Laboratory Methods of Testing Fans for Aerodynamic
   Performance Rating
C.	American National Standards Institute (ANSI):
1.	11-r1999 - Method of Evaluating Load Ratings of Bearings 
D.	American Society of Civil Engineers (ASCE):
1.	7-02 - Minimum Design Loads for Building and Other Structures
E.	American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc.
 (ASHRAE):
1.	Chapter 45 - 2003 Handbook, HVAC Applications
2.	Chapter 7 - 2001 Fundamentals handbook, Sound-Vibration
3.	Chapter 32 - 2001 Fundamentals handbook, Duct Design
4.	Chapter 18 - 1992 HVAC System and Equipment handbook, Fans
F.	American Society for Testing and Materials (ASTM):
1.	E330-02 - Standard Test Method for Structural Performance of Exterior
  Windows, Doors, Skylight and Curtain Walls by Uniform Static Air Pressure
  Difference
G.	National Fire Protection Association (NFPA)
1.	70 - National Electrical Code
2.	90A-02 - Standard for the Installation of Air-Conditioning and Ventilating
   Systems
3.	92A-06 - Recommend Practice for Smoke-Control System
4.	92B-05 - Standard for Smoke Management System in Malls, Atria, and Large
   Areas
5.	96-04 - Standard for Ventilation Control and Fire Protection of Commercial
  Cooking Operations
H.	Occupational Safety and Health Administration (OSHA):
1.	1910.212 - General requirements for Machine Guarding
2.	1910.219 - General requirements for guarding safe use of mechanical power
   transmission apparatus
3.	1926.300 - General requirements for safe operation and maintenance of hand
   and power tools
I.	Underwriters Laboratories (UL):
1.	507 - Electric Fans
2.	555 - Fire Dampers
3.	555S - Smoke Dampers
4.	705 - Standard Power Ventilators
5.	705 – Supplement SC - Standard Power Roof Ventilators for Restaurant Exhaust Appliances
6.	793 - Snow Load

1.3	SUBMITTALS
A.	General: Submit in accordance with Section 01 33 00 Submittal Procedures
B.	Provide dimensional drawings and product data on each fan
C.	Provide fan curves for each fan at the specified operation point, with the flow, static
 pressure and horsepower clearly plotted
D.	Provide outlet velocity and fan's inlet sound power readings for the eight octave
 bands, decibels, and sones
E.	Strictly adhere to QUALITY ASSURANCE requirements as stated in section 1.04 of
 this specification
F.	Provide manufacturer's certification that exhaust fans are licensed to bear Air
 Movement and Control Association (AMCA), Certified Rating Seal for sound and air
                   performance
G.	Installation, Operation, and Maintenance Manual (IOM): Provide manufacturer's
 installation, operations, and maintenance manual, including instructions on
      installation, operations, maintenance, pulley adjustment, receiving, handling,
      storage, safety information and cleaning. A troubleshooting guide, parts list,
      warranty and electrical wiring diagrams

1.4	QUALITY ASSURANCE
A.	Performance ratings: Conform to AMCA standard 211 and 311. Fans must be tested
 in accordance with ANSI/AMCA Standard 210-99 and AMCA Standard 300-96 in an
                  AMCA accredited laboratory. Fans shall be certified to bear the AMCA label for air
                  and sound performance seal
B.	Classification for Spark Resistant Construction, levels A, B, and C conform to AMCA
       99
C.	Each fan shall be given a balancing analysis which is applied to wheels at the
 outside radius. The maximum allowable static and dynamic imbalance is 0.05
                   ounces (Balance grade of G6.3)
D.	Comply with the National Electrical Manufacturers Association (NEMA), standards
       for motors and electrical accessories

1.5	DELIVERY, STORAGE, AND HANDLING
A.	Delivery: Deliver materials to site in manufacturer’s original, unopened containers
 and packaging, with labels clearly indicating manufacturer, material, products
 included, and location of installation
B.	Storage: Store materials in a dry area indoor, protected from damage, and in
 accordance with manufacturer’s instructions. For long term storage follow
 manufacturer's Installation, Operations, and Maintenance Manual
C.	Handling: Handle and lift fans in accordance with the manufacturer’s instructions.
Protect materials and finishes during handling and installation to prevent damage. Follow all safety warnings posted by the manufacturer

1.6	WARRANTY
A.	Manufacturer's Warranty: Submit, for Owner's acceptance, manufacturer's standard
 warranty document executed by authorized company official. Manufacturer's 
 warranty is in addition to, and not a limitation of, other rights Owner may have under
 Contract Documents
1.	The warranty of this equipment is to be free from defects in material and
   workmanship for a period of one year from the purchase date. Any units or
   parts which prove defective during the warranty period will be replaced at the
   Manufacturers option when returned to Manufacturer, transportation prepaid
2.	Motor Warranty is warranted by the motor manufacturer for a period of one
   year. Should motors furnished by us prove defective during this period, they
   should be returned to the nearest authorized motor service station

1.7	MAINTENANCE
A.	Refer to Manufacturer's Installation, Operation and Maintenance Manual (IOM), to
 find maintenance procedures

2.	PRODUCTS
2.1	MANUFACTURER
A.	Greenheck, PO Box 410, Schofield, Wisconsin 54476. Phone (715) 359-6171. 
       Fax (715)355-2399. Website: www.greenheck.com

2.2	BELT DRIVE ROOF UPBLAST ULTIMATE STEEL GREASE CENTRIFUGAL EXHAUST FANS GREENHECK MODEL USGF
A.	General Description:
1.	Discharge air up and away from the mounting surface
2.	Upblast fan shall be for roof mounted applications
3.	Performance capabilities up to 7,000 cubic feet per minute (cfm) and static
   pressure to 3 inches of water gauge
4.	Fans are available in fourteen sizes with nominal wheel diameters ranging from
  14 inches through 20 inches (140 - 200 unit sizes)
5.	Maximum continuous operating temperature is 400 Fahrenheit (204.4 Celsius)
6.	Each fan shall bear a permanently affixed manufacture's engraved metal
   nameplate containing the model number and individual serial number
B.	Wheel:
1.	Constructed of non-stick coated steel
2.	Non-overloading, backward inclined centrifugal 
3.	Statically and dynamically balanced in accordance to AMCA Standard 204-05
4.	The wheel cone and fan inlet will be matched and shall have precise running
   tolerances for maximum performance and operating efficiency
C.	Motors:
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Specifier Note: Edit the following motor enclosures to fit the requirements of the project:
1.	Open drip-proof (ODP)-opening in the frame body and or end brackets.
2.	Totally enclosed not ventilated (TEFC) - no opening in the frame or brackets. Equipped with an external fan to blow air over the motor.
Consult manufacturer for additional information. *************************************************************************************************************
1.	Motor enclosures: [Open drip proof] [Totally enclosed fan cooled]
2.	Motors are permanently lubricated, heavy duty ball bearing type to match with
   the fan load and furnished at the specific voltage and phase
3.	For motor cooling there shall be fresh air drawn into the motor compartment
   through an area free of discharge contaminants
4.	Accessible for maintenance
D.	Shafts and Bearings:
1.	Fan shaft shall be 1 inch minimum in diameter and is ground and polished solid
  steel with an anti-corrosive coating
2.	Permanently sealed bearings or pillow block ball bearings 
3.	Bearing shall be selected for a minimum L10 life in excess of 100,000 hours
  (equivalent to L50 average life of 500,000 hours), at maximum cataloged
  operating speed
4.	Bearings are 100 percent factory tested
5.	Fan Shaft first critical speed is at least 25 percent over maximum operating
        speed
E.	Heat Baffle:
1.	1 inch thick insulation shield that prevents heat from radiating into the motor
   compartment
F.	Housing:
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Specifier Note: Item 5; continuously robotically welded windband to curb cap; is a feature only offered by Greenheck as standard, and is designed to provide a leak proof mechanical seal between the windband and curb cap to prevent grease from leaking onto or damaging the roof. Consult manufacturer for additional information.
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1.	Constructed of steel includes exterior housing, curb cap, windband, and motor
  compartment housing. 
2.	Housing shall have a rigid internal support structure
3.	Windband to be one piece uniquely spun steel construction and maintain
  original material thickness throughout the housing.
4.	Windband to include an integral rolled bead for strength
5.	Curb cap base to be fully welded to windband to ensure a leak proof
  construction. Tack welding, bolting, and caulking is not acceptable
6.	Curb cap to have an integral deep spun inlet venturi and pre-punched mounting
  holes to ensure correct attachment to curb
7.	Drive frame assemblies shall be constructed of heavy gauge steel and mounted
  on vibration isolators
8.	Breather tube shall be 10 square inches in size for fresh air motor cooling, and
  designed to allow wiring to be run through it
G.	Motor Cover:
1.	Constructed of steel
H.	Vibration Isolation:
1.	Double studded true isolators
2.	No metal to metal contact
3.	Sized to match the weight of each fan
I.	Disconnect Switches:
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Specifier Notes: Edit the following Disconnect Switches to meet project requirements: Factory Mounted and Shipped loose for field mounting, National Electrical Manufacturers Association (NEMA):
1.	NEMA 3R: outdoor application falling rain water.
2.	NEMA 4: outdoor application hose directed water.
3.	NEMA 4X: same as NEMA 4, but corrosion resistant.
4.	NEMA 12: Industrial use, dust-tight, and drip-tight, oil resistant for indoor use.
Consult manufacturer for additional information.
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1.	NEMA rated: [3R] [4] [4X] [12]
2.	Positive electrical shut-off
3.	Wired from fan motor to junction box installed on the outside of the fan housing
J.	Drive Assembly:
1.	Belts, pulleys, and keys oversized for a minimum of 150 percent of driven
   horsepower
2.	Belts: Static free and oil resistant
3.	Fully machined cast iron type, keyed and securely attached to the wheel and
   motor shafts
4.	The motor pulley shall be adjustable for final system balancing
5.	Two groove pulley with belt system
6.	Readily accessible for maintenance
K.	Drain Trough:
1.	Allows for one-point drainage of water, grease, and other residues
L.	Clean Out Port:
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Specifier Notes: Clean out port is patented by Greenheck. Consult Greenheck for additional information
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1.	Removable grease repellent compression rubber plug allows access for
  cleaning wheel through Windband
M.	Curb Seal:
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Specifier Notes: Edit the following finishes to meet project requirements:  
1.	Foam Seal – dense foam tape seal.  
2.	High Temp Seal – Amorphous silica fiber tape seal, rated for continuous duty at 1500 degrees Fahrenheit.
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1.	Types: [None] [Foam Seal] [High Temp Seal] 
2.	Typically mounted between the fan curb cap and the roof curb
N.	Hinge Base:
1.	Aluminum hinges
2.	Hinges and restraint cables are mounted to a base (sleeve)
3.	Allows the fan to tilt away for access to wheel and ductwork for inspection and
  cleaning
O.	Grease Trap:
1.	Constructed of aluminum 
2.	Collects grease residue
P.	Options/Accessories:
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Specifier Notes: Specify accessories 1 - 7 required for the exhaust fans. Delete accessories not required. Consult manufacturer for additional information.
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1.	Birdscreen:
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Specifier Notes: Edit the following Birdscreen material to meet the requirements of the project. Consult manufacturer for additional information.
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a.	Material Type: [Galvanized] [Aluminum]
b.	Protects fan discharge
2.	Roof Curbs:
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Specifier Notes: Edit item 1 for the following roof curbs to fit project requirements:
1.	GPI- Welded, straight sided curb with 2 inches of flashing flange and wood nailer 
2.	GPF- Welded, straight side curb with no wood nailer
3.	GPNS- tabbed and riveted curb with 45 degree cant and wood nailer
4.	GPS- Welded curb with 45 degree cant and wood nailer
5.	GPIP- For pitched roofs, welded straight side curb with 2 inch flashing flanges and wood nailer
6.	GPFP- For pitched roofs, welded straight side curb with no wood nailer
7.	GPFV- Welded, straight side curb with vents and no wood nailer.
8.	GPFVP- For pitched roofs, welded, straight side curb with vents and no wood nailer.
9.	GPFVR- For ridged roofs, welded, straight side curb with vents and no wood nailer.
Edit Items C through E to meet project requirements. Consult Greenheck for additional information on ridged and sound curbs.
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a.	Types: [GPI] [GPF] [GPNS] [GPS] [GPIP] [GPFP] [GPR] [GPFV] [GPFVP] [GPFVR]
b.	Mounted onto roof with fan
c.	Material: [Aluminum] [Galvanized]
d.	Insulation thickness: [No insulation] [1 inch] [1.5 inches]
e.	Flashing Flange: [2] [5] inch
f.	Coating Type: [None] [Permatector] [Hi-Pro Polyester]
3.	Curb Extension:
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Specifier Notes: Edit the following curb extension to meet the requirements of the project:
1.	GPE- bolted access door and damper holding tray.
2.	GPEX- curb extension without access door or damper tray.
Consult Greenheck for additional information.
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a.	Type: [GPE] [GPEX] 
b.	Material Type: [Aluminum] [Galvanized]
c.	Coating: [None] [Permatector] [Hi-Pro Polyester]
4.	Finishes:
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Specifier Notes: Edit the following finishes to meet project requirements: 
1.	Permatector - thermo-setting polyester urethane
2.	Hi-Pro Polyester- Meets or exceeds the chemical resistance properties of Air Dry Phenolic (Heresite)
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a.	Types: [Permatector] [Hi-Pro Polyester]
5.	Hinge Kit:
a.	Aluminum hinges
b.	Allows the fan to tilt away for access to wheel and ductwork for inspection
    and cleaning
6.	Tie-Down Points:
a.	Four brackets located on windband secures fan in heavy wind applications
7.	Windband Extension:
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Specifier Notes: The windband extension is available on fan sizes up though 360. Delete the following option when specifying fan sizes 420 and 480.
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a.	Constructed of aluminum with rolled beads
b.	Raises fan discharge an additional 36 inches

3.	EXECUTION
3.1	MANUFACTURER'S INSTRUCTIONS
A.	Compliance: Comply with manufacturer's product data, including technical bulletins,
 product catalog installation instructions

3.2	EXAMINATION
A.	Examine areas to receive fans. Notify the Engineer of conditions that would
 adversely affect installation or subsequent utilization and maintenance of fans. Do
       not proceed with installation until unsatisfactory conditions are corrected

3.3	PREPARATION
A.	Ensure roof openings are square, accurately aligned, correctly located, and in
 tolerance
B.	Ensure duct is plumb, sized correctly, and to proper elevation above roof deck.
 Install duct as specified in Air Distribution (Division 23)

3.4	INSTALLATION
A.	Install fans system as indicated on the Installation, Operation and Maintenance
 Manual (IOM) and contract drawings
B.	Install fans in accordance with manufacturer's instructions

3.5	SYSTEM STARTUP
A.	Refer to Installation, Operation, and Maintenance Manual (IOM)

3.6	ADJUSTING
A.	Adjust exhaust fans to function properly
B.	Adjust Belt Tension
C.	Lubricate bearings
D.	Adjust drive for final system balancing
E.	Check wheel overlap

3.7	CLEANING
A.	Clean as recommended by manufacturer. Do not use material or methods which
 may damage finish surface or surrounding construction

3.8	PROTECTION
A.	Protect installed product and finished surfaces from damage during construction
B.	Protect installed exhaust fans to ensure that, except for normal weathering, fans will
 be without damage or deterioration at time of substantial completion

Section 1.01	END OF SECTION 23 34 23