Ruskin										March 1999
3900 Dr. Greaves Road
Kansas City, Missouri  64030
	Phone		(816) 761-7476
	Fax		(816) 765-8955
	Web Site	www.Ruskin.com

Product Guide Specification

Specifier Notes:  This product guide specification is written according to the Construction Specifications Institute (CSI) Format, including MasterFormat (1995 Edition), SectionFormat, and PageFormat, contained in the CSI Manual of Practice.

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

Delete all "Specifier Notes" when editing this section.	

SECTION 15820

INDUSTRIAL HIGH TEMPERATURE CONTROL DAMPERS

Specifier Notes:  This section covers Ruskin industrial high temperature steel control dampers with flange mounting, Model CD82HT.

Dampers of this type are often fabricated to meet special design requirements based on temperatures, pressures, velocities, and environmental conditions.  Consult Ruskin for assistance in editing this section for specific applications.	

PART 1	GENERAL

1.1	SECTION INCLUDES

A.	Industrial high temperature steel control dampers with flange mounting.

1.2	RELATED SECTIONS

Specifier Notes:  Edit the following list as required for the project.  List other sections with work directly related to the dampers.	

A.	Section 15810 - Ducts.

Section 15900 - Damper Controllers.

1.3	REFERENCES

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

1.4	SUBMITTALS

A.	Comply with requirements of Section 01330 - Submittal Procedures.

B.	Product Data:  Submit manufacturer's product data, including leakage, pressure drop, and maximum pressure data in accordance with AMCA 500 testing.  Submit data for full range of damper sizes.

C.	Shop Drawings:  Submit shop drawings indicating materials, construction, dimensions, and installation details.

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, and location of installation.

B.	Storage:  Store materials in a dry area indoors, protected from damage and in accordance with manufacturer's instructions.

C.	Handling:  Protect materials and finishes during handling and installation to prevent damage.

PART 2	PRODUCTS

2.1	MANUFACTURER

A.	Ruskin, 3900 Dr. Greaves Road, Kansas City, Missouri 64030.  Phone (816) 761-7476.  Fax (816) 765-8955.  Web Site www.Ruskin.com.

2.2	INDUSTRIAL HIGH TEMPERATURE CONTROL DAMPERS

Specifier Notes:  Ruskin has design and fabrication capabilities to provide industrial high temperature steel control dampers to meet all special requirements.  Consult Ruskin for assistance in selecting from options for specific applications.	

A.	Fabrication:
1.	Model:  CD82HT.
2.	Frame:  8 inches x 2 inches x minimum 3/16 inch (203 x 51 x minimum 5 mm) steel channel.  [Corten steel.]
a.	Bolt Holes:  [One flange] [Both flanges].
3.	Blades:
a.	Action:  [Parallel] [Opposed].
b.	Material:  Minimum 1/4 inch (6 mm) steel.  [Corten steel.] [Abrasion resistant steel.]
c.	Width:  6 inches to 7-3/4 inches (152 to 197 mm).
4.	Axles:  Minimum 1 inch (25 mm) diameter stainless steel.
[a.	Shaft Seals:  _______________ .]
5.	Bearings:  [Cast iron sleeve bolted outboard of frame] [ _______________ ].
6.	Linkage:  Side linkage out of airstream.
a.	Tie Bars:  3/8 inch x 1-1/4 inches (10 x 32 mm) steel.
b.	Pivot Pins or Shoulder Bolts:  3/8 inch (10 mm) diameter steel.
c.	Operating Arms:  1/4 inch (6 mm) steel.

Specifier Notes:  Actuator selection, mounting on damper, and pretest cycling will be performed by Ruskin.  Consult Ruskin for additional testing and mounting configurations of Ruskin supplied actuators.	

7.	Actuator:  [Manual, hand quadrant] [Manual, __________ ] [Electric, 120 V, 60 Hz, two-position, spring-return] [Electric, __________ ] [Pneumatic, 20 to 30 psi (138 to 207 kPa) supply air pressure, two-position, spring-return] [Pneumatic, __________ ].
8.	Seals:
a.	Blade:  Mechanically attach blade seals to blade.  _______________ .
b.	Jamb:  ______________ .

Specifier Notes:  Standard finish is high temperature aluminum paint.  Consult Ruskin for assistance in specifying special materials and finishes for specific applications.	

9.	Finish:  High temperature aluminum paint.
10.	Maximum Operating Temperature:  [750 degrees F (399 degrees C)] [ __________ ].
11.	Assembly:  Factory assemble damper components.

2.3	SOURCE QUALITY CONTROL

A.	Factory Tests:  Factory cycle damper and actuator to assure proper operation.

PART 3	EXECUTION

3.1	EXAMINATION

A.	Examine 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

A.	Install dampers at locations indicated on the drawings and in accordance with manufacturer's instructions.

B.	Install dampers square and free from racking with blades running horizontally.

C.	Operate opposed blade dampers from a power blade or drive axle.

D.	Install bracing for multiple section assemblies to support assembly weight and to hold against system pressure.  Install bracing at every horizontal and vertical mullion.

END OF SECTION