Product Specification Guide
Model GRSR Spun Aluminum Relief Gravity Ventilator
Facility Services Subgroup: Division 23 Section 23 37 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 MasterFormat 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 Gravity 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 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
E.	The High Wind models shall be analyzed and stamped by a state license P.E. to the ASCE 7-02 Standard which meets the IBC, Florida and Miami-Dade codes
F.	Each High Wind model is subject to be certified by a third party to the ASTM E330 Static Pressure Difference Standard
G.	All High Wind models shall be analyzed using Computational Fluid Dynamics (CFD). The CFD simulates the flow of high speed (150MPH) winds over the surface of objects
H.	The Finite Element Analysis (FEA) is the results from the CFD and it can accurately predict the stress, strain, and deflection resulting form high wind loads

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	SPUN ALUMINUM RELIEF GRAVITY VENTILATOR - GREENHECK MODEL GRSR
A.	General Description:
1.	Ventilator is low silhouette for relief applications with natural gravity or negative pressure system
2.	Selection based on non-ducted applications
3.	Intake unit sizes 8 to 48
4.	Performance capability up to 18,200 cubic feet per minute (cfm)
5.	Each unit shall bear a permanently affixed manufacture's nameplate containing the model number and individual serial number
B.	Hood:
1.	Constructed of aluminum
2.	Internal structure is constructed of galvanized steel
C.	Birdscreen:
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Specifier Notes: Edit the following birdscreen material to meet project requirements: Galvanized is factory standard. Consult manufacturer for additional information
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1.	Constructed of ½ inch[Galvanized] [Aluminum] mesh
2.	Mounted horizontally across the intake area of the hood
D.	Housing:
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Specifier Notes: Edit the following curb cap to meet project requirements: Hinged Curb Cap is two piano style hinges, optional. Consult manufacturer for additional information
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1.	Curb Cap type: [Hinged] [No Hinged]
2.	Constructed of aluminum, includes windband and curb cap. Galvanized material is not acceptable
3.	Windband to be one piece spun aluminum construction and maintain original material thickness throughout the housing.
4.	Windband to include an integral rolled bead for strength
5.	Curb cap to have integral deep spun inlet venturi and prepunched mounting holes to ensure correct attachment to roof.
E.	Options/Accessories:
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Specifier Notes: Specify accessories 1 - 10 required for the ventilators. Delete accessories not required. Consult manufacturer for additional information.
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1.	Curb Seal:
a.	Rubber seal between fan and the roof curb
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
Edit Items c through e to meet project requirements. Consult manufacturer for additional information on ridged and sound curbs.
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a.	Type: [GPI] [GPF] [GPNS] [GPS] [GPIP] [GPFP] 
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.	Dampers:
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Specifier Notes: Edit the following gravity or motorized backdraft dampers to meet project requirements. Specify damper size based on specified fan size. For gravity applications a motorized damper is recommended. Consult manufacturer for additional information.
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a.	Type: [Gravity] [Motorized]
b.	Prevents outside air from entering back into the building when fan is off
c.	Balanced for minimal resistance to flow
d.	Galvanized frames with prepunched mounting holes
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)
Consult manufacturer for additional information
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a.	Type: [None] [Permatector] [Hi-Pro Polyester]
5.	Flashing Flange:
a.	Constructed of aluminum
b.	Pre-punched holes for installation without a roof curb
6.	Hood Insulation:
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Specifier Notes: Edit the following insulation thickness to meet project requirements. Consult manufacturer for additional information.
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a.	Lined with [ ½ ] [ 1 ] inch fiberglass insulation to prevent condensation and sound levels
7.	Insect Screen:
a.	Constructed of fine mesh aluminum
b.	Fitted to the top of the throat and prevents entry of insects
8.	Tie-Down Points:
a.	Four aluminum brackets located on windband secures fan in heavy wind applications
9.	Reducer/Adapter:
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Specifier Notes: Edit the following material of Adapter or Reducer to meet project requirements.
Adapter: allows the fan to fit an existing roof curb that is larger than the fan's curb cap dimensions
Reducer: allows the fan to fit an existing roof curb that is smaller than the fan's curb cap dimensions
Consult manufacturer for additional information
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a.	Type: [Adapter] [Reducer]
b.	Material type: [Aluminum] [Galvanized]

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.	Ventilators shall be adjusted according to manufacturer's instructions

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 ventilators 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 37 23