Shop Greenheck Backdraft Dampers Backdraft dampers (also called gravity dampers) allow airflow in one direction and prevent reverse airflow for use in exhaust or intake HVAC systems. Which damper best fits the application? Forceful winds and wind-borne debris are the cause of most hurricane damage. ft. @ 1” w.g., 8 cfm/sq. Learn More . Doors . Products tested and classified in accordance with UL555C. View other RADI products . $52.02 . Hurricane winds start at 75 mph. A backdraft damper, or isolation damper, from Grainger helps to allow airflow in one direction and prevent reverse airflow. Fans, circulators, blowers, fume and lab exhaust . Life Safety Dampers . Greenheck louvers are available in endless standard configurations. Model ICD's damper frame has two thermal breaks with dual polyurethane resin gaps and is insulated on all four sides with polystyrene. Añadir a favoritos . Greenheck Product # 483623. Do not use to exhaust hazardous or explosive materials and vapors. Damper shall meet or exceed the IECC (International Energy Conservation Code) building envelope requirements for maximum damper leakage ratings of 3 cfm/sq. Access doors are designed for use in low to medium pressure duct systems. and can exert a force of 75 pounds per square foot of pressure—or over 900 pounds on a fan and curb. AVERTISSEMENT! Price. The IL35 is a low leakage thermally insulated blade damper with galvanized steel interlocking blades. Control dampers regulate the … Parallel/Opposed Single Thickness Blade Stainless Steel Control Damper 395 Parallel/Opposed Single Thickness Blade Low Leakage Control Damper Adjustable Linkage 495/496 Parallel/Opposed Single Thickness Blade Control Damper 515SAF/516SAF Parallel/Opposed Airfoil Blade Control Damper ID200 Parallel Double Thickness Insulated Blade Control Damper Ratings. View More View All Sort & Filter. Choose the mounting style and size that will fit your roof exhaust needs when you shop for an isolation damper, or backdraft damper, from Grainger today. Cantidad: Seleccionar . Find blade type, velocity, pressure, AMCA listings, submittals, drawings and more, all in one easy-to-use format. Regulating damper DAR/DARL passes about 30% of air with a possibility of full opening of a duct. 7 Actuator Mounting Options Actuators must be factory mounted. and 11 cfm/sq. Email this page . A new brochure details the manufacturer's low-leakage insulated control damper (Model ICD). Spun Aluminum • Downblast. 400 Ross Ave. Schofield WI 54476 UNITED STATES (715) 359-6171 (715) 355-2399 www.greenheck.com. Access doors provide an easy means of reaching damper components inside the ductwork. Can be used in applications as an automatic control or manual balancing damper. ; Shut off damper DAS/DASL stops about 95% of air during full closing stage. Dampers, louvers and … They provide a durable, practical, and inexpensive means of gaining access to damper components inside the ductwork. Centrifugal Roof Exhaust Fans. This test method, which is found in American National Standards Institute (ANSI)/AMCA Standard 500D-12, assigns a damper a thermal efficiency ratio by comparing its thermal performance with the thermal performance of a standard reference damper. Greenheck’s Computer Aided Product Selection (CAPS) program contains the necessary data and greatly simplifies actuator selection. (32 kg) All dimensions in inches (millimeters). Greenheck’s damper interactive selection guide removes the guesswork. Smoke dampers are UL555S tested and labeled, low leak damper and actuator assemblies constructed to restrict the spread of smoke in HVAC systems that are designed to be automatically shut down in the event of a fire, or opened to control the movement of smoke within a building when the HVAC system is part of an engineered smoke control system. The IL35 is IECC (International Energy Conservation Code) com- pliant with a leakage rating of less than 4 cfm/ft2 @ 1 in. Backdraft dampers allow airflow in one direction and prevent reverse airflow. Model Series: 3900 Insulated Thermal-Break Control Damper. Each meets or exceeds the industry’s most stringent test performance standards and provide exceptional aesthetic appeal. ft. @ 8” w.g. Control damper products for commercial applications. Backdraft dampers can either be operated by gravity (where pressure or velocity opens and closes the damper) or motorized to open and close when required. Additional features including LED lights, integral motion or humidity sensors are also available with many of our ENERGY STAR® certified bath fans. Today, we design and manufacture a comprehensive line of top performing equipment and accessories that move, control and condition air. EXPLORE. Dampers are made in diameter range from 80 mm to 630 mm of galvanized, aluminium and acid-resistant sheet. • Increases Free Area - Traditional damper designs with a single blade width require oversized blade stops, limiting free area when the blades are open (Figure 1). LEARN MORE . Please feel free to contact our Aftermarket Support Team for further assistance. View and Download Greenheck LFC-15L-FC instruction manual online. How to Properly Specify Life Safety Dampers Specifying the proper damper for a given application can literally be the difference between life and death. ft. @ 4” w.g. This large selection offers wall-mount and roof-mount backdraft dampers. It is also AMCA-certified for pressure drop and leakage. CAUTION! For some applications, it is essential that thermal conductivity be kept at a minimum. LEARN MORE. VCD-34V is a low leakage control damper with insulated vertical fabricated airfoil blades. View and Download Greenheck ICD-44 instruction manual online. LEARN MORE. We began as a fan company in 1947. Learn More . Certified Products. and shall be AMCA Certified. GREENHECK ARTICLES . Damper products for life safety systems and for airflow control in commercial HVAC systems. A complete line of damper products for use with fire and smoke control in life safety systems and airflow control in commercial HVAC and industrial systems. This allows a Greenheck control damper to be mounted in either direction of flow, an advantage when installing with space constraints. Dampers (Rectangular) Model SEVCD-23 Low Leakage Control Damper; Model ICD-45 Insulated Control Damper; Model ICD-45 Insulated Control Damper ; Model VCD-23 Control and Low Leakage Control Dampers; Model VCD-33 Damper; Model … AIR MOVEMENT. They provide a durable, practical, and inexpensive means of gaining access to damper components inside the ductwork. Envío Gratis. Leakage: ***** Dampers shall have a maximum leakage of 3 cfm/sq. Choose from extruded aluminum or galvanized steel louvers. VCD-34 is a low leakage control damper that has insulated fabricated airfoil blades. Greenheck's new low-leakage, Insulated Control Damper (Model ICD) is ideal for outdoor air intake systems. Control Dampers. Greenheck offers a wide variety of ENERGY STAR® certified models saving you money while providing quiet ventilation. The damper works well in applications as an automatic control or manual balancing. • For general ventilating use only. From Actuators and Enclosures to Fusible Links and Jack Shafts we offer all the replacement parts you need to keep your Greenheck dampers operating at peak performance. Pour réduire le risque d’incendie, de choc électrique ou de blessure corporelle, respecter cd qui suit: • Appareil pouvant être utilisé avec un régulateur de vitesse à semi-conducteurs. Insulated Housing - For noise reduction and condensation control, the interior of fan housing and filter box can be lined with a fiberglass duct liner.... Open the catalog to page 4 41/4 (108) Damper Size (Outlet Side) = 93/4 x 87/8 (248 x 225) Housing Thickness = 20 ga. ^Approximate Unit Weight = 70 lb. Ruskin's Insulating Control Dampers are perfect for performing this task. The minimum space allowed is 182.575 millimeters (7.188 inches) and is the default in CAPS. High Wind and Hurricane - G and GB Greenheck is leading the High Wind Standard for roof top fans and ventilators. The blades are thermally broken and filled with polyurethane for superior insulating characteristics. Round Access Door, For 10 Inch Duct Diameters, Insulated. Can’t find what you’re looking for? w.g. California Residents - Prop 65 Warning Specifications Damper Applications Greenheck offers an extensive line of heavy-duty and industrial grade dampers designed to provide a solution for the following applications: Control and Isolation The rectangular HCD and round HCDR products are designed for control and shut-off applications. insulated to a value greater than R40. The blade insulation of the IL35 carries an R value of 3.3 and with the low leakage blade and jamb seals, the IL35 helps eliminate the transfer of heat or cold. Enter your name and email address Your email address will not be stored by us unless you join our mailing list indicated below Backdraft Dampers . AIR CONTROL. A: The damper location for all multi-blade models (FSD, SMD, VCD and DFD-210 series) is referred to as the A dimension (distance from end of sleeve to face of damper). Greenheck’s systems and products are used in commercial, institutional and industrial buildings. Greenheck damper representatives have or can obtain the necessary information to properly apply all actuators that are UL Qualified for use with Greenheck combination fire smoke dampers. All have a variety of accessories, blade, head and sill designs to fit your application. Greenheck models G and GB centrifugal roof exhaust fans provide the industry’s best performance and durability for ge Designed to withstand temperatures as low as -70°F, the control damper's thermally broken frame provides an insulating barrier in the ductwork. Greenheck Fan Corporation. Añadir a comparar . 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