P.O. Box 410
Schofield, WI  54476

Phone:  715.359.6171
www.greenheck.com
Product Specification Guide
Model SMDR Series Round Smoke Dampers
Facility Service Subgroup: Division 23 HVAC (Previously Division 15)

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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.

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

The 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 "Specifier Notes" when editing this section.
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1.	GENERAL

1.1	WORK INCLUDED

A.	True Round Smoke Dampers meeting requirements of UL Standard 555S 4th Edition. 

1.2	RELATED WORK
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Specifier Notes: Edit the following list as required for the project.  List other sections with work directly related to the dampers. ********************************************************************************************
A.	Section 233300 Air Duct Accessories (Formerly Section 15810 – Ducts)

B.	Section 230913 – HVAC Instrumentation and Controls: Actuators and Operators; Control Dampers (Formerly Section 15900 – HVAC Instrumentation and Controls: Connections to Actuators)

1.3	REFERENCES
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Specifier Notes: List standards referenced in this section, complete with designations and titles. This article does not require compliance with standards, but is merely a listing of those used. ********************************************************************************************
A.	AMCA 500-D – Laboratory Methods for Testing Dampers for Ratings

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

C.	CSFM – California State Fire Marshall Listing for Smoke Damper (leakage)

D.	IBC – International Building Code

E.	NFPA 90A – Installation of Air Conditioning and Ventilating Systems

F.	NFPA 92 – Smoke Control Systems

G.	NFPA 101 – Life Safety Code

H.	NFPA 105 – Standard for the Installation of Smoke Door Assemblies and Other Opening Protectives

I.	UL 555S (Fourth Edition) – Standard for safety: Leakage Rated Dampers for Use in Smoke Control Systems

1.4	SUBMITTALS

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

B.	Product Data: Submit manufacturer’s product data.
1.	Include UL ratings for leakage, velocity, differential pressure and elevated temperature.
2.	Indicate materials, construction, and dimensions.
3.	Verify conformance to NFPA, CSFM, IBC, UL, and applicable building code as specified in Quality Assurance.
4.	Include pressure drop data for all damper sizes in accordance with AMCA 500-D test figures 5.2 (Ducted Inlet, Free Outlet), 5.3 (Ducted Inlet, Ducted Outlet) and 5.5 (Free Inlet, Free Outlet).
5.	Include a copy of UL Installation Instructions.

1.5	QUALITY ASSURANCE

A.	Dampers shall meet requirements for smoke dampers in accordance with:
1.	NFPA 90A, 92, 101, and 105
2.	CSFM Leakage (Smoke) Damper Listing #3230-0981:104
3.	Applicable Building Codes

B.	Dampers shall be tested, rated, and labeled in accordance with 
1.	UL 555S (Fourth Edition), Listing R13317

C.	Dampers shall bear the AMCA Certified Ratings Seal for Air Performance in accordance with AMCA 511.

1.6	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 indoor, 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.

2.	PRODUCTS

2.1	MANUFACTURER

A.	Greenheck, PO Box 410, Schofield, Wisconsin 54476-0410.  Phone (715) 359-6171.  Fax (715) 355-6458.  Web Site www.greenheck.com.

2.2	ROUND SMOKE DAMPERS

A.	Model: SMDR-500, SSSMDR-500, and SESMDR-500 series true round smoke dampers.
1.	Leakage: 
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Specifier Notes: Leakage Class ratings of I, II, & III are allowed by UL Standard 555S.  Most codes require a minimum of Leakage Class II.  The lowest leakage rating (Leakage Class I) is recommended as it provides a higher level of safety at little if any increase in cost. ************************************************************************************
•	Dampers shall have a UL555S leakage rating of Leakage Class I.
•	Dampers shall have a UL555S leakage rating of Leakage Class II.

2.	Elevated Operational Temperature:
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Specifier Notes: Elevated temperature ratings of 250F and 350F are allowed by UL Standard 555S.  The highest temperature rating (350F) is recommended as it provides a higher level of safety at little if any increase in cost. ************************************************************************************
•	Dampers shall have a UL 555S elevated temperature rating of 250F.
•	Dampers shall have a UL 555S elevated temperature rating of 350°F.

3.	Differential Pressure: 
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Specifier Notes: Pressure rating levels of 4 in. wg are allowed by UL Standard 555S.  It is recommended that the lowest level consistent with the project’s HVAC system design be specified. ************************************************************************************
•	Dampers shall have a minimum UL 555S differential pressure rating of 4 in. wg.

4.	Velocity: 
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Specifier Notes:  Airflow velocity rating levels of 2000, 3000, and 4000 fpm are allowed by UL Standard 555S. It is recommended that the lowest level consistent with the project’s HVAC system design be specified. ************************************************************************************
•	Dampers shall have a minimum UL 555S velocity rating of 3000 fpm.

B.	Construction:
1.	Frame and Sleeve: 
•	The damper frame and sleeve shall be of one-piece design, made with 20 ga. galvanized steel and a groove for added strength. 16 ga and 14 ga galvanized steel frame and sleeve are optional. (SMDR-500 series)
•	The damper frame and sleeve shall be of one-piece design, made with 20 ga. 304 stainless steel and a groove for added strength. 16 ga and 14 ga 304SS frame and sleeve are optional. (SSSMDR-500 series)
•	The damper frame and sleeve shall be of one-piece design, made with 20 ga. 316 stainless steel and a groove for added strength. 16 ga and 14 ga 316SS frame and sleeve are optional. (SESMDR-500 series)

2.	Blades: 
•	Double skin, minimum 14 ga. equivalent thickness, galvanized steel (SMDR-500 series).
•	Double skin, minimum 14 ga. equivalent thickness, 304 stainless steel (SSSMDR -500 series).
•	Double skin, minimum 14 ga. equivalent thickness, 316 stainless steel (SESMDR-500 series).

3.	Blade Seals:
•	Silicone rubber fully encompassing the blade edge and mechanically secured between the double skin blades.

4.	Axles: 
•	Minimum ½ inch dia. plated steel. (SMDR-500 series)
•	Minimum ½ inch dia. 316SS. (SESMDR and SSSMDR series)

5.	Bearings: 
•	Axle bearings shall be bronze sleeve type (SMDR-500 series).
•	Axle bearings shall be 316 stainless steel sleeve type (SESMDR and SSSMDR series). Optional for SMDR-500 series.

6.	Mounting:
•	Vertical
•	Horizontal

7.	Finish:
•	Galvanized steel (SMDR-500 series)
•	304 Stainless steel (SSSMDR-501 series)
•	316 Stainless steel (SESMDR-501 series)

C.	Actuators:
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Specifier Notes:  Specify electric actuators (stall type actuators are not acceptable).  Specify external or internal mounting.  Electric actuators and components are to be factory grounded to single point junction box in accordance with Part 1 of the Canadian Electrical Code, section 12-1xxx (Rigid and Flexible Metal Conduit Rules).  External mounting is recommended for ease of accessing for inspection and to minimize blockage that will result in higher pressure drop across the damper.  Specifier select the required actuator type and mounting location:
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1.	Type: 
•	Electric, 120V AC, 2-position
•	Electric, 24V AC, 2-position
•	Electric, 230V AC, 2-position
2.	Mounting: 
•	External

D.	Accessories
1.	Test Switches
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Specifier Notes: Test switches provide an easy way to perform testing and maintenance on combination fire smoke dampers. Specifier, select one of the following options:
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•	Greenheck Test Switches (GTS) – Test and cycle the damper remotely. 
•	Momentary Test Switch: Test and cycle the damper on location.

2.	Smoke detector
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Specifier Notes: Greenheck offers photoelectric or no flow smoke detectors.  Specifier, select one of the following options:
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•	Model
a.	Photoelectric smoke detector for air velocities 100 – 4000 fpm.
b.	No flow smoke detector is rated for air velocities 0 – 3000 fpm.
•	Mounting
a.	Shipped loose for field installation.

2.3	SOURCE QUALITY CONTROL

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

3.	EXECUTION

3.1	EXAMINATION

A.	Examine areas to receive dampers.  Notify the Engineer of conditions that would adversely affect installation or subsequent utilization of dampers.  Do not proceed with installation until unsatisfactory conditions are corrected.

3.2	INSTALLATION

A.	Install dampers in accordance with manufacturer’s UL Installation Instructions, labeling, and NFPA 90A at locations indicated on the drawings.  Any damper installation that is not in accordance with the manufacturer’s UL Installation Instructions must be approved prior to installation. 

B.	Dampers must be accessible to allow inspection, adjustment, and replacement of components.  The sheet metal contractor shall furnish any access doors in ductwork or plenums required to provide this access.  The general contractor shall furnish any access doors required in walls, ceilings, or other general building construction.  

C.	Install dampers round and free from racking. 

D.	Do not compress or stretch the damper frame into the duct or opening.

E.	Handle dampers using the frame or sleeve.  Do not lift or move dampers using blades, actuator or jackshaft.

F.	Install connections to actuators as specified in section 230913.
END OF SECTION