P.O. Box 410
Schofield, WI  54476

Phone:  715.359.6171
www.greenheck.com

Product Specification Guide
Model FSD-311V Combination Fire 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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PART 1   GENERAL

1.1	WORK INCLUDED

A.	This section contains combination fire smoke dampers with vertical fabricated airfoil blades meeting requirements of UL Standard 555 7th Edition and UL Standard 555S 5th 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 15810 – Ducts)

B.	Section 233313.16 – Fire Dampers

C.	Section 233313.19 – Smoke-Control Dampers

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

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 Fire Damper and Smoke Damper (leakage)

D.	IBC – International Building Code

E.	NFPA 80 – Fire Doors & Other Opening Protectives

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

G.	NFPA 92 – Standard for Smoke Control Systems

H.	NFPA 101 – Life Safety Code

I.	NFPA 105 – Standard for the Installation of Smoke Door Assemblies

J.	UL 555 (Seventh Edition) – Standard for Safety: Fire Dampers

K.	UL 555S (Fifth Edition) – Standard for Safety: Smoke Dampers

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 fire resistance, 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 combination fire smoke dampers in accordance with:
1.	NFPA 80, 90A, 92, 101 and 105
2.	CSFM Fire Damper Listing
3.	CSFM Leakage (Smoke) Damper Listing
4.	Applicable Building Codes

B.	Dampers shall be tested, rated, and labeled in accordance with:
1.	UL 555 (Seventh Edition)
2.	UL 555S (Fifth Edition)

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.

PART 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	COMBINATION FIRE SMOKE DAMPERS

A.	Model: FSD-311V 

B.	Ratings:
1.	Fire Resistance: 
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Specifier Notes: UL 555 provides for classification of combination fire-smoke dampers with fire resistance ratings of either 1½ or 3 hours.  NFPA 90A requires that HVAC penetrations through barriers with fire resistance ratings less than 3 hours be protected by 1½ hour rated dampers.  Penetrations through barriers with fire resistance ratings of 3 hours or more require 3 hour rated dampers.  NFPA 90A also requires that all combination fire-smoke damper locations and their hourly rating requirements be shown on the project plans.  Specifier, select from the following:
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•	Dampers shall have a UL 555 fire resistance rating of 1½ hours. 

2.	Fire Closure Temperature: 
Each combination fire-smoke damper shall be equipped with a factory installed heat responsive device rated to close the damper when the temperature at the damper reaches:
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Specifier Notes: Combination fire smoke dampers qualified under UL 555 are required to be equipped with a heat responsive device to close the damper when temperature at the damper reaches some specific maximum. The International Building Code requires that the minimum activation temperature be 50F above the maximum expected duct temperature. Heat responsive devices (a resettable thermostat or fusible link) rated to close combination fire smoke dampers at 165F, 212F, 250F, and 350F are available. Specifier, select one of the following options:
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•	165F
•	212F
•	250F
•	350F

3.	Elevated Operational Temperature:
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Specifier Notes:  The minimum elevated temperature rating allowed by UL Standard 555S and the International Building Code is 250F.  The International Building Code also mandates a maximum rating of 350°F, which is often desired in an active smoke control system. The broadest product offering is rated for 250oF with less expansive offerings available with a 350F rating. Specifier, select one of the following options: ************************************************************************************
•	Dampers shall have a UL 555S elevated temperature rating of 250F.
•	Dampers shall have a UL 555S elevated temperature rating of 350F.

4.	Leakage: 
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Specifier Notes: Leakage Class ratings of I, II, & III are allowed by UL Standard 555S. The 2015 IBC and NFPA 101 codes require a minimum of Leakage Class II. Specifier, select one of the following options: ************************************************************************************
•	Dampers shall have a UL555S leakage rating of Leakage Class I 
(8 cfm/ft2 (0.04 m3/ s/m2) at 4 in. wg (1.0 kPa).

5.	Differential Pressure: 
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Specifier Notes: UL Standard 555S defines a minimum differential pressure rating of 4 in. wg. Specifier, select one of the following options:
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•	Dampers shall have a UL 555S differential pressure rating of 4 in. wg. 

6.	Velocity: 
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Specifier Notes: UL Standard 555S defines a minimum airflow velocity rating of 2000 fpm with higher velocities available in 1000 fpm increments. The broadest product offering is rated for 2000 fpm with less expansive offerings available with 3000 fpm or 4000 fpm ratings.  Specifier, select one of the following options: ************************************************************************************
•	Dampers shall have a UL 555S velocity rating of 2000 fpm.
•	Dampers shall have a UL 555S velocity rating of 3000 fpm.
•	Dampers shall have a UL 555S velocity rating of 4000 fpm.

C.  Construction:
1.	Frame: 
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Specifier Note: Improper corner reinforcement and light gauge construction can result in dampers being installed out of square and thusly, impeded operation and diminished life expectancy. Corner reinforcement required by the following specification will significantly minimize these problems.  
To minimize pressure losses across dampers less than 17 in. in height it is desirable to require a low profile frame to maximize the damper free area. Specifier, select one of the following options:
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•	Damper frame shall be 16 ga. galvanized steel formed into a 5 in. x 1 in. structural hat channel. Dampers less than 17 in. high shall utilize low profile geometry and 20 ga. galvanized steel for the top and bottom frame members to maximize free area.  Frame shall be 4-piece construction with 1 ½ in. (minimum) integral overlapping gusset reinforcements in each corner to assure square corners and provide maximum resistance to racking. No welding of damper frames shall be permitted. 

2.	Blades:
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Specifier Notes: The following requirements for blade construction incorporate a design concept known as VSB (Variable Symmetrical Blades) which ensures symmetry about the blades’ pivot point and of the free areas between blades. Many damper manufacturers utilize only one size of blade, which requires trimming one or more blades to accommodate varying damper heights.  When blades are trimmed they become non-symmetrical resulting in an operating torque profile that will vary significantly with respect to direction of airflow through the damper. Additionally, larger blade stops and seals (top and bottom of damper) are required which further reduces damper free area and increases pressure loss. Maintaining symmetry about blade pivot points and between adjacent blade and frame members helps ensure minimal pressure losses in all flow conditions. Specifier, select one of the following options:
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•	Damper blades shall be of 14 ga. equivalent, galvanized steel with full length structural reinforcement and a double skin true airfoil shape. Each blade shall be symmetrical relative to its axle pivot point, presenting identical performance characteristics with air flowing in either direction through the damper. Provide symmetrical blades of varying size as required to completely fill the damper opening. Blade orientation is vertical.

3.	Seals:
a.	Blade Edge:  Blade seals shall be extruded silicone rubber mechanically secured to the appropriate blade edges.
b.	Jamb: Flexible stainless steel compression type.

4.	Linkage:
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Specifier Notes:  Concealing the blade linkages in the jamb of the damper frame reduces pressure drop across the damper and results in less maintenance than linkages exposed to airflow. Additionally, a precision engineered non-adjustable linkage system ensures that catalogued performance via precise blade positioning is maintained throughout the life of the damper while also eliminating the need for maintenance and the potential of poor performance due to improper adjustment. 
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Blade linkages shall be non-adjustable and concealed within the jamb of the damper. 

5.	Axles:  
•	Minimum ½ inch dia. zinc plated steel

6.	Sleeves:  Damper shall be supplied as a single assembly with a factory installed sleeve made of material matching that of the damper.

7.	Fire Closure Device:
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Specifier Notes: The fire closure device is linked to the actuator to move the damper to its open or closed position in response to signals from the building control system, fire alarm system, smoke alarm system, or the electric heat responsive sensing device on the damper itself. Fire Closure Device options available are:
  
RRL (Reusable Resettable Link), an electric heat-responsive device standard on any combination fire-smoke damper that performs the same function as a fusible link. An RRL can be reset, eliminating the need to replace a fusible link. 

RRL/OCI (Reusable Resettable Link with Open & Closed Indicator) – performs the function of RRL with an OCI that is linked to a damper blade to indicate whether the damper blade is open or close when used in conjunction with remote indicator lights.

The TOR (Temperature Limited Override) – incorporates two electric sensing devices (thermostats) with fixed settings (most often 165°F and 350°F, respectively) and eliminates the fusible link entirely. Typically used in engineered smoke control systems, the TOR is configured with two closure temperatures. The damper will initially close when the set point of the primary sensor (165°F setting standard; 212°F optional) is met. The primary sensor can then be bypassed by an external electrical signal allowing the damper to reopen and remain open until the temperature reaches the setting of the secondary sensor (usually 350°F depending on the actuator). When the temperature of the secondary sensor is exceeded, the damper closes until manually reset.

Specifier, select one of the following options:
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•	Dampers shall be supplied with RRL.
•	Dampers shall be supplied with RRL/OCI.
•	Dampers shall be supplied with TOR.

8.	Bearings: 
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Specifier Notes:  Extruded bearing holes provide optimal axle-to-bearing surface area resulting in extended damper life and reduced cost of ownership.
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Axle bearings shall be stainless steel sleeve type rotating in polished extruded holes in the damper frame.

9.	Mounting:
•	Vertical

10.	Finish:
•	Galvanized steel 

D.	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.  Specifiers 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 location: 
•	External (outside of duct)

F.  Accessories:
1. Test Switches
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Specifier Notes: Test switches enable testing and maintenance on combination fire smoke dampers to be performed by one person. All GTS test switch packages incorporate separate open and closed lights for positive indication of the damper’s full operating range and are intended to be mounted locally on the damper or in a more conveniently accessed location remote from the damper. There are four GTS test switch options:

GTS-1: Intended for use with dampers equipped with a TOR fire closure device, this switch package provides a three position toggle switch that allows testing of the normal, override and off functions of the damper.

GTS-2: Intended for use with dampers equipped with a TOR fire closure device, this switch package provides a three position keyed switch that allows testing of the normal, override and off functions of the damper with the added security of keyed access protection.

GTS-3: Intended for use with dampers equipped with an RRL/OCI fire closure device, this switch package provides a momentary push type switch that allows testing of the normal and off functions of the damper.

GTS-4: Intended for use with dampers equipped with an RRL/OCI fire closure device, this switch package provides damper position indicating lights to compliment damper mounted test switches or other means of testing.

Momentary Test Switches:  Intended for use with dampers equipped with an RRL fire closure device, these switches are factory mounted on the damper to facilitate testing without the need for remotely mounted accessories. 

Specifier, select one of the following options:
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a.	Type
•	Dampers shall be supplied with GTS-1 test switch package. 
•	Dampers shall be supplied with GTS-2 test switch package.
•	Dampers shall be supplied with GTS-3 test switch package.
•	Dampers shall be supplied with GTS-4 test switch package.
•	Dampers shall be supplied with mounted Momentary Test Switch.

2. 	Smoke Detector
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Specifier Notes: Greenheck offers non-addressable photoelectric or no flow smoke detectors.  Smoke detector addressability is specific to smoke alarm system type. Specifier, select one of the following options:
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a.	Model:
•	Photoelectric smoke detector for air velocities 100 – 4000 fpm
•	No flow smoke detector is rated for air velocities 0 – 3000 fpm
b.	Mounting:
•	Factory mounted
•	Shipped loose for field installation

3.	Retaining Angles
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Specifier Notes: All fire dampers are required to be secured into their opening with the use of retaining angles. Greenheck’s factory supplied retaining angles are four individual angles that are riveted in three corners to form a single assembly that significantly reduces damper installation time. Specifier, select one of the following options:
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•	1½ x 1¼ inches
•	2½ x 1½ inches

4. 	Breakaway Connections
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Specifier Notes: Breakaway connections are required on all combination fire smoke damper installations.  
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•	Quick Connect: Universal breakaway connection that is compatible with TDC, TDF, Ductmate, Dyn-o-mate, Nexus or Ward flange systems.

2.3	SOURCE QUALITY CONTROL

A.	Factory Tests: Factory cycle damper and actuator assemblies 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 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.  Any damper installation aspect 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 square and free from racking. 

D.	The installing contractor shall provide and install bracing for multiple section assemblies to support assembly weight and to hold against system pressure. 

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

F.	Attach multiple damper section assemblies together in accordance with manufacturer’s instructions.  

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

H.	Install connections to actuators as specified in section 230923.

I.	Attach multiple damper section assemblies together in accordance with manufacturer’s instructions.  Install support mullions as reinforcement between assemblies as required.

END OF SECTION