Greenheck out of wall fire damper
Webfloors be larger that the fire damper and sleeve assembly to allow for this expansion. Clearance required between the outside of fire damper sleeve assemblies and wall/floor openings are: - Galvanized steel fire dampers and sleeves: 1⁄ 8 inch (3 mm) per foot of damper width and height with minimum clearance ¼ inch (6 mm) and a maximum of 1½ ... WebThe FSD-331 is a combination fire smoke damper with airfoil blades. This model is rated for use in walls, floors, or partitions with a fire resistance rating of 3 hours or more and a Class I leakage rating. Pressure: Up to 8 …
Greenheck out of wall fire damper
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WebLINE OF WALL DO NOT INSTALL SCREWS BETWEEN THESE LINES AROUND ENTIRE DAMPER Retaining Angles (see Section 4) Line of Wall Airflow Detail 1 DO NOT INSTALL SCREWS BETWEEN THESE LINES AROUND ENTIRE DAMPER Access door required on jackshaft side of damper. Refer to the latest edition of NFPA 90A. Jackshaft Actuator … Webwall/floor by a minimum of 1 in. (25 mm)(see Figure 3). • For grille installation on fire damper up to 36 in. x 36 in. (914 mm x 914 mm) maximum, angle legs may be reversed and one leg inserted into the wall/floor opening providing the required clearance is maintained between angle leg fastener and the wall/floor opening. Note: Screws
WebSep 8, 2024 · There are two common construction types of fire dampers: curtain and multi-blade. Both styles are manufactured using either galvanized or stainless steel, and both utilize a fusible link to hold the damper blades open until it reaches an elevated temperature (minimum of 165°F). WebModel OFSD-311 is an ‘out of wall’ high performance combination fire smoke damper with Class I leakage. The OFSD-311 is approved for use in walls, partitions, and floors with fire resistance ratings less than 3 hours. Removal of wall grille allows access to the actuator and other components. High strength
WebInserting Dampers Into Wall/Floor Openings Figures 5 and 6 shows two approved installations for out of wall/floor dampers: 1) Through the grille access and 2) Installation in continuing duct In both installation methods the damper shall not be mounted more than 31⁄ 2 in. (89 mm) outside the plane of the wall/floor. WebNov 11, 2024 · Preparing the wall openings. Wall openings must be framed out in accordance with the damper manufacturer’s installation instructions. All construction and fasteners must meet the requirements of the …
WebOut of Wall Fire Smoke Dampers Combination Fire Smoke Dampers with a 1½ hour fire rating – UL 555 and UL 555S Classified Combination fire and smoke dampers are used …
WebOut of Wall Fire Damper - Static Rated 11⁄ 2 Hour Fire Resistance Rating Application Model OFD-150 is a static rated out of wall fire damper for use in HVAC systems that … csus geology departmentWebrequire fire dampers with a 3 hour rating. Fire resistance ratings less than 3 hours require 1½ hour rated fire dampers. (Reference 2015 International Building Code, section 717.3.2). Airflow Closure Ratings Fire dampers can be either STATIC or DYNAMIC rated. STATIC rated fire dampers have no airflow closure rating and can only be applied in HVAC csu shepardsonWebBefore the static fire dampers are installed into the wall the mullions must first be anchored into the wall. The fire dampers may then be installed into the mullion assembly. To correctly attach the mullions to the wall, follow these steps: 1. Anchor wall mullion caps to wall using 1⁄ 4-20 x 5⁄ 16 in. long flat head steel bolts and 3⁄ csu shoesWebOut of Wall Partitions for Fire Dampers (Static & Dynamic) and Fire Smoke Dampers Installation Instructions Important General Notes: When UL is referred to in this document, it represents UL/ULC. This installation instruction applies to Fire Dampers and Com-bination Fire/Smoke Dampers mounted outside the plane of an UL approved fire partition ... csu shopnetWebGreenheck fire-rated grilles, registers and diffusers are classified and listed by UL for use in restrained and unrestrained floor/ceiling or roof/ceiling assemblies with up to a 3-hour rating. Louvered Face Diffusers Louver face ceiling diffuser with a UL-listed ceiling radiation damper. VIEW Louvered Face Diffusers Step Down Diffusers csu shooting 2017WebFire damper assemblies expand during periods of intense heat. Therefore, it is essential that openings in walls or floors be larger than the fire or combination fire smoke damper assembly to allow for this expansion. The wall/floor opening must be a minimum of 7⁄ 8 in. (22 mm) larger than the outside diameter of the damper. csus hhsWebModel DFDR-510 is a dynamic rated round fire damper for use in HVAC systems that are operational in the event of a fire. This fire damper is rated for use in walls, floors, and partitions with less than 3 hour fire resistance rating and can be mounted vertically or horizontally. Diameter Minimum Size Maximum Size Inches 4 24 mm 102 610 Size ... early years funding document webpage