Product Specification Guide
Modular Open Array, Direct Drive, Model MOA
Facility Services Subgroup: Division 23 (Previously Division 15)

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Specifier Notes: This product specification guide is written in accordance with 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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PART 1	 GENERAL
1.1 	WORK INCLUDED  
A.	Modular Open Array, Direct Drive EC Fan with integrated drive, Model MOA

1.2 	RELATED SECTIONS 
A.	All sections, drawing plans, specifications and contract documents.

1.3 	REFERENCES
A.	ANSI/AMCA Standard 99-10, "Standards Handbook" 
B.	ANSI/AMCA Standard 204-05, "Balance Quality and Vibration Levels for Fans"
C.	ANSI/AMCA Standard 210-07, "Laboratory Methods of Testing Fans for Aerodynamic Performance Rating"
D.	AMCA Publication 211-05, "Certified Ratings Program - Product Rating Manual for Fan Air Performance"
E.	AMCA Standard 300-08, "Reverberant Room Method for Sound Testing of Fans"
F.	AMCA Publication 311-05, "Certified Ratings Program - Product Rating Manual for Fan Sound Performance"
G.	AMBA - Method of Evaluating Load Ratings of Bearings ANSI-11 (r1999).
H.	OSHA guideline 1910.212 - General requirements for Machine Guarding. (www.osha.gov)
I.	OSHA guideline 1910.219 - General requirements for guarding safe use of mechanical power transmission apparatus.  (www.osha.gov)
J.	OSHA guideline 1926.300 - General requirements for safe operation and maintenance of hand and power tools. (www.osha.gov)	

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Specifier Notes:

	Fans with Sure-Aire Flow Monitoring selected shall include the following.

1.	Flow monitoring station shall monitor the pressure difference between the fan bulkhead and the smallest diameter of the inlet cone.
2.	Volumetric flow to be calculated from empirically derived formulas based on testing by the fan manufacturer.
3.	Flow monitoring stations should not use air restricting flow devices that reduce fan performance or create additional fan sound.
4.	A single sensor orifice to be drilled in the smallest diameter of the inlet cone venturi, provided with a barb for flow tube connection. 

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1.4 	QUALITY ASSURANCE
A.	Fans are vibration tested to BV-3 in an individual fan configuration. Each fan shall be given an electronic vibration analysis in accordance with ANSI/AMCA Standard 204. The maximum allowable fan vibration shall be 0.10 in/sec peak velocity for fans, filter-in as measured at the fan RPM. 

1.5	SUBMITTALS
A.	Provide dimensional drawings and product data on each fan array.
B. 	Provide fan curves for each fan array at the specified operation point, with the flow, static pressure and horsepower clearly plotted, including N-1 conditions.
C.	Provide both inlet and outlet sound power readings for the eight octave bands. 
D.	Strictly adhere to QUALITY ASSURANCE requirements as stated in section 1.4 of this specification.

1.6	DELIVERY, STORAGE AND HANDLING
A.	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.	Store materials in a dry area indoors, protected from damage and in accordance with the manufacturer’s instructions. For long term storage, follow manufacturer’s Installation, Operation, Maintenance manual and long-term energization procedures.
C.	Handle and lift fans in accordance with the manufacturer's instructions. Protect materials and finish during handling and installation to prevent damage. Follow all safety warnings posted by the manufacturer.

1.7	WARRANTY
A.	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 for 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 the manufacturer, transportation prepaid.

PART 2 PRODUCTS
2.1	GENERAL
A.   	Base array performance at standard conditions (density 0.075 lb/ft3).
B.	Each direct drive fan shall be in AMCA arrangement 4 according to drawings.

2.2	FAN HOUSING
A.	Fan Array shall be of the direct drive centrifugal type.
B.	Fan inlet shall be aerodynamically designed to be high efficiency, engineered to reduce incoming air turbulence.
C.	Panels and framework shall be constructed of heavy gauge, precision laser-cut and die formed galvanized steel to provide a rigid structure to support the motor and wheel reducing low frequency vibration.
D.	The entire fan assembly including the inlet cone, wheel and motor assembly shall be mounted rigidly.

2.3	FAN WHEEL
A.	The fan wheel shall be non-overloading backward curved type. Wheels shall be statically and dynamically balanced to grade G6.3 per ANSI S2.19.
B.	The fan wheel shall be 7 blade, backward inclined to move the blade pass frequency into the mid-octave bands.
C.	The wheel and fan inlet shall be carefully matched and shall have precise running tolerances for maximum performance and operating efficiency. 

2.4	FAN MOTOR
A.	Motors shall meet or exceed NEMA Premium efficiencies. IP54 Enclosure. Motors shall be 3 phase, 460 volts.
B.	Motors shall be EC style with integrated drive

2.5 	 FAN ARRAY 
A.	Construction to be modular, components fit through standard man-door or freight elevator
B.	Array to ship knocked down for field assembly
C.   Fan array design to be optimized by Computer Aided Product Selection software accounting for fan spacing (distance between wheels) and velocity of air flow per design point.

2.6	 FAN ARRAY CONTROLS
		A.   UL508A panel provided with each fan array. Arrays larger than 10 fans may have multiple panels.
		B.    Wiring to be sized for connected to each fan from the UL panel to be provided.
C.    Fan array performance to be optimized with non-proprietor system controller featuring built-in
        logic for redundancy and BMS integration
D.    Modbus RTU, BACnet ready with additional I/O
E.    Digital Communication cable to be provided 
F.    Optional – 7” touch screen/User Interface

PART 3 EXECUTION
3.1	EXAMINATION
A.	Examine areas to receive array. 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.

3.2	INSTALLATION
A.  	Install array as indicated on the contract drawings.
B. 	Install array in accordance with manufacturer’s Installation, Operation and Maintenance manual.

PART 4 ACCEPTABLE MANUFACTURERS
A.	Greenheck Fan Corporation, 2000 Partnership Dr, Shelby NC 28150, www.greenheck.com,      Modular Open Array, Direct Drive, Model MOA.