Product Specification Guide
Commercial Medium Pressure Axials, Model AX
Facility Services Subgroup: Division 23 (Previously Division 15)

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Specifier Notes: This product specification guide is written according to the Construction Specifications Institute (CSI) Format.

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.	Medium Pressure Axials, Model AX

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

1.3 	REFERENCES
A.	ANSI/AMCA Standard 99-16, “Standards Handbook” 
B.	ANSI/AMCA Standard 204-20, “Balance Quality and Vibration Levels for Fans”
C.	ANSI/AMCA Standard 210-16, “Laboratory Methods of Testing Fans for Aerodynamic Performance Rating”
D.	AMCA Publication 211-13, “Certified Ratings Program – Product Rating Manual for Fan Air Performance”
E.	AMCA Standard 300-14, “Reverberant Room Method for Sound Testing of Fans”
F.	AMCA Publication 311-16, “Certified Ratings Program – Product Rating Manual for Fan Sound Performance”
G.	ANSI/AMCA Standard 500-D-18, "Laboratory Methods of Testing Dampers for Rating"
H.	OSHA guideline 1910.212 – General requirements for Machines, Machinery and Machine Guarding. (www.osha.gov)
I.	OSHA guideline 1910.219 – Mechanical power transmission apparatus, Machinery and Machine Guarding. (www.osha.gov)
J.	OSHA guideline 1926.300 – General requirements, Tools – Hand and Power. (www.osha.gov)
K.	UL/cUL Standard 705, “Power Ventilators” 
L.	UL/cUL Standard 705, “Power Ventilators – Supplement SD”

1.4	QUALITY ASSURANCE
A.	Performance ratings: Conform to ANSI/AMCA Standards 210 and 300. Fan must be tested in accordance with AMCA Publications 211 and 311 in an AMCA accredited laboratory and certified for air performance. Fan shall be licensed to bear the AMCA ratings seal for air performance (AMCA 210).  
B.	Classification for Spark Resistant Construction shall conform to ANSI/AMCA Standard 99.
C.	Fan shall be UL/cUL listed for emergency heat and smoke removal.

1.5	SUBMITTALS
A.	Provide dimensional drawings and product data on each medium pressure axial fan.
B. 	Provide fan curves for each fan at the specified operation point, with the flow, static pressure and horsepower clearly plotted.
C.	Provide outlet velocity of axial fans and 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 indoor, protected from damage, and in accordance with manufacturer’s instructions. For long term storage, follow manufacturer’s Installation, Operation and Maintenance manual.
C.	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.

1.7	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 of this equipment is to be free from defects in material and workmanship for a period of 12 months 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.
2.	Motor Warranty is warranted by the motor manufacturer for a period of one year. Should motors furnished prove defective during this period, they should be returned to the nearest authorized motor service station.

PART 2 EQUIPMENT
2.1	GENERAL
A.  Base fan performance at standard conditions (density 0.075 Lb. /ft3).
B.	Fans selected shall be capable of accommodating static pressure and flow variations of +/-15% of scheduled values.
C.	Each fan shall be direct driven in AMCA arrangement 4 with propeller secured to the motor shaft.

2.2	FAN HOUSING AND OUTLET
A.	Fan housing to be aerodynamically designed with integral punched flanges for sizes up through size 160 (63-inch diameter).
B.	Fan housing shall be constructed of rolled steel with a continuous seam weld.
C.	AX 100 Series Fan
a.	Housing to be galvanized steel, uncoated with natural color.
b.	Motor support framework to be constructed of galvanized steel that is suitable to handle the weights of the motor and propeller. Motor supports within the fan housing to be bolted to the fan casing.
D.	AX 200/300 Series Fan
a.	Housing to be coated with a minimum of 3 mils of Permatector, an electrostatically applied and baked polyester urethane. Finish color shall be gray. Coating must exceed 1,000-hour salt spray under ASTM B117 test method.
b.	Motor support framework to be constructed of structural steel that is suitable to handle the weights of the motor and propeller. Motor supports within the fan housing to be welded to the fan casing. All support framework to be coated with a minimum of 3 mils of Permatector, an electrostatically applied and baked polyester urethane. Finish color shall be RAL 7023, concrete grey. Coating must exceed 1,000-hour salt spray under ASTM B117 test method.

2.3	FAN IMPELLER
A.	A taper lock bushing shall be used to mount the propeller to the motor shaft.
B.	Fan propeller shall use cast aluminum airfoil blades. Blades to be adjustable within a cast aluminum hub to allow for performance changes. The propeller shall be both statically and dynamically balanced.
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 MOTORS AND DRIVE.
A.	Motors shall be 3600 RPM, 1800 RPM, 1200 RPM or 900 RPM in 60 Hz, (2900, 1500, 975, or 750 in 50 Hz), Totally Enclosed Fan Cooled (TEFC) with a 1.15 service factor.
B.	Motors must be standard NEMA T-Frame designs that are readily available from motor vendors. Suppliers using C-Face or Pad Mount motors must include provisions to provide replacement motors in case of a motor failure due to long motor lead times.
C.	Motors for emergency smoke ventilation shall use insulation class F or H as noted below:
•	302 F (150o C) for a minimum of 5 hours of operation requires class F insulation.
•	482 F (250o C) for a minimum of 2 hours of operation requires class F insulation.
•	500 F (260o C) for a minimum of 4 hours of operation requires class H insulation.
•	572 F (300o C) for a minimum of 1 hour of operation requires class H insulation.

PART 3 EXECUTION
3.1	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.

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

PART 4 ACCEPTABLE MANUFACTURERS
A.	Greenheck Fan Corporation, PO Box 410, Schofield WI 54476-0410, www.greenheck.com          Model AX, Medium Pressure Axial Fans.