SECTION 23 33 00
MANUAL CONTROL DAMPERS
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PART 1	GENERAL

1.1	SECTION INCLUDES

A.	Galvanized steel control dampers suitable for applications in HVAC systems with velocities to 1500 feet per minute (547 m/min).

1.2	RELATED SECTIONS

A.	Section 23 31 00 – HVAC Ducts and Casings.

B.	Section 23 09 00 – Instrumentation and Control for HVAC

1.3	REFERENCES

A.	AMCA 500 - Test Methods for Louvers, Dampers and Shutters.

B.	AMCA 511 – Certified Ratings Program for Air Control Devices

C.	USGBC: U.S. Green Building Council LEED® Rating System.

1.4	DEFINITIONS
A.	Damper Terminology:  Definitions of terms for metal louvers contained in AMCA 500 apply to this Section unless otherwise defined in this Section or in referenced standards.
B.	Horizontal Damper:  Damper with horizontal blades, i.e., the axes of the blades is horizontal.
C.	Vertical Damper:  Damper with vertical blades, i.e., the axes of the blades is vertical.

1.5	ACTION SUBMITTALS

A.	Comply with requirements of Section 01 33 00 – Submittal Procedures.

B.	Product Data:  Submit manufacturer’s product data.
1.	Include leakage, pressure drop, and maximum pressure data.
2.	Indicate materials, construction, and dimensions.
3.	Include a copy of the Installation Instructions.
C.	Product Schedule:  For dampers.  Use same designations indicated on Drawings.
D.	Samples:  Submit sample of damper to show frame, blades, actuator, accessories, finish, and color.

1.6	INFORMATIONAL SUBMITTALS
A.	Qualification Data:  For manufacturer and Installer.
B.	Product Test Reports:  For each type of damper, for tests performed by a qualified testing agency.
C.	Field quality-control reports.
D.	Sample Warranties:  For manufacturer's warranties.

1.7	QUALITY ASSURANCE
A.	Manufacturer Qualifications:
1.	The manufacturer shall have implemented the management of quality objectives, continual improvement, and monitoring of customer satisfaction to assure that customer needs and expectations are met.
2.	Manufacturer shall be International Organization for Standardization (ISO) 9001 accredited.
B.	Installer Qualifications:
1.	USGBC LEED Compliance:  The Work of this section shall be in accordance with applicable portions of the U.S. Green Building Council’s LEED Green Building Rating System. Refer to Divisions 23 and 26 Sections and other related documents bound herein for purposes of complying with this requirement.
1.8	DELIVERY, STORAGE, AND HANDLING
A.	Delivery:  Deliver materials to site in manufacturer's original, unopened containers and packaging, with labels clearly indicating manufacturer and material.
B.	Storage:  Store materials in a dry area indoors, protected from damage and in accordance with manufacturer's instructions.
C.	Handling:  Handle and lift dampers in accordance with manufacturer's instructions.  Protect materials and finishes during handling and installation to prevent damage.
1.9	WARRANTY
A.	Manufacturer shall provide standard limited warranty for damper systems for a period of one year from date of installation, no more than 18 months after shipment from manufacturing plant. When notified in writing from the Owner of a manufacturing defect, manufacturer shall promptly correct deficiencies without direct financial cost to the Owner.  

PART 2	PRODUCTS

2.1	MANUFACTURER

A.	Ruskin Company, 3900 Dr. Greaves Road, Grandview, Missouri 64030.  Phone (816) 761-7476.  Fax (816) 765-8955.  Web Site http://www.ruskin.com.

B.	Substitutions:  Not permitted.

C.	Request for substitutions will be considered in accordance with provisions of Section 01600.

2.2	CONTROL DAMPERS
A.	Model: MD35 as manufactured by Ruskin Company.
B.	Ratings:
1.	Size:  Damper widths from 6 inches (152 mm) to 48 inches (1219 mm) as scheduled or required.
2.	Velocity:  Damper shall have a maximum velocity rating of 1500 fpm (547 m/min) for a 48 inches (1219 mm) blade. 
3.	Temperature:  Damper shall be rated for -40 degrees F to +240 degrees F (-40 degrees C to +116 degrees C).
C.	Construction:
1.	Frame:  16 gauge (1.6 mm) galvanized steel, 5 inches (127 mm) deep.
2.	Blades:
a.	Style:  Single skin, 16 gauge (1.6 mm) galvanized steel with center V groove for reinforcement. 
b.	Action:  Parallel.
c.	Action:  Opposed.
d.	Orientation:  Horizontal.
e.	Width:  Maximum of 8 inches (203 mm).
3.	Bearings:  Corrosion resistant, molded synthetic sleeve type turning in an extruded hole in the damper frame.
4.	Axles:  ½ inch (133 mm) diameter plated steel, hex-shaped, mechanically attached to the blade.
5.	Mounting:  Vertical.
6.	Mounting:  Horizontal.
7.	Finish:  Mill galvanized.
1.3	ACCESSORIES
A.	Actuator:
1.	Manual:  Hand quadrant.
2.	Mounting:  External.
1.4	SOURCE QUALITY CONTROL
A.	Factory Tests:  Factory cycle damper and actuator assembly to assure proper operation.
PART 2  	EXECUTION
3.1	EXAMINATION
A.	Inspect areas to receive dampers.  Notify the Engineer of conditions that would adversely affect the installation or subsequent utilization of the dampers.  Do not proceed with installation until unsatisfactory conditions are corrected.
3.2	INSTALLATION
B.	Install dampers at locations indicated on the drawings and in accordance with manufacturer's installation instructions.
C.	Install dampers square and free from racking with blades orientation as scheduled or required.
D.	Do not compress or stretch damper frame into duct or opening.
E.	Handle damper using sleeve or frame.  Do not lift damper using blades, actuator, or jackshaft.
F.	Install bracing for multiple section assemblies to support assembly weight and to hold against system pressure.  Install bracing as needed.
END OF SECTION