Links will release at the temperature embossed onto the link itself. The above pricing packages are examples based on three actionpac lns panels at a single site, with a minimum of 25 fire and smoke dampers all connected to dedicated actionpac intelligent damper control panels with adequate access to service at least 25 dampers per day. Inspect all fusible link operated dampers at least every two years and operate them every four years unlike motor operated dampers fusible link operated dampers cannot be cycled open and closed without accessing the damper and manually removing and reinstalling the fusible link. The fusible link portion functions identically to that of an ordinary fusible link. Gemini fire is part of the gemini ampm asset management and planned maintenance group of companies who offer a fire damper testing, cleaning and maintenance service, in accordance with bs 9999. How to properly inspect and test fire dampers facilities. If youre installing a listed damper, it will need to be maintained in accordance with its listing and the appropriate provisions of the fire code and property maintenance code. Inspect all fusible link operated dampers at least every two years and operate them every four years unlike motor. Fms guide to testing and maintaining fire dampers wireless fire damper.
Most of these mechanical devices have a fusible link, which is defined by bs 99999 as a device that releases a component such as a fire damper or fire shutter at a set temperature. Fms guide to testing and maintaining fire dampers fire safety. The d1250 series is approved for use in both static and dynamic hvac. Mar 22, 20 like all opening protectives, continued maintenance and inspection is critical and will help ensure that the doors, windows, shutters, dampers, etc. Bimetals operate in the time and 17% less air temperature. The g fusible link is a mechanical heat activated device. That documentation needs to be provided to the code official upon request. The overcenterknee lock with high torque springfusible link assures failsafe closure during fire conditions under airflow. Quite often installed fire damper devices have a fusible link, which is defined by bs 99999 as a device that releases a component such as a fire damper or fire shutter at a set temperature.
The fusible link is the mechanism that holds the damper blades in the open position. Fire and smoke dampers are fitted in ductwork where it passes through a fire compartment barrier, for example at fire rated walls and floors. During fire damper testing its essential to check the correct fusible links are fitted. Visually inspect the link to verify its not damaged. Automatic damper testing testing of automatic dampers from a control panel and a physical inspection in accordance with latest. In rooms where the normal temperature of the room is consistently higher, a higher degree fusible link would. Fsd series combination fire and smoke dampers are by. Description fusible links are temperature sensitive release mechanisms designed to be part of a variety of fire protection systems.
A facility managers guide to testing and maintaining fire. The fdl can be installed in rectangular or circular ducts. This is a 165 degree fahrenheit fusible link replacement that is primarily used for fire dampers, and more popular with dayton, but also with lloyd industries, and ruskin dampers that are intended to close. Swegon service price all projects on a projectsite basis. The challenge for maintenance and engineering managers is to understand the gamut of issues related to damper installation and performance, including inspection, testing, and maintenance. They are designed to shut when a specified temperature or.
A fire damper is a device installed in ducts and air transfer openings of an air distribution or smoke control system that is designed to close automatically upon detection of heat. An additional solution for round ducts is the use of a true round fire damper. Facility management coverage relating to fire safety, firelife safety, fire. Nailor 0100, 0200, 0300, and 0500 series static curtain fire dampers, for use in static fans off systems where the hvac system shuts down in the event of a fire, are ul approved to provide 1. Some links are liquid filled glass bulbs, and some are pieces of metal soldered together. Dayton fusible link, actual width 12, actual size height. Fire and smoke dampers are fitted in ductwork where it passes through a fire compartment barrier, for example at firerated walls and floors. Fire damper maintenance legislation ductbusters uk. Looking for dayton fusible link, actual width 12, actual size height 112 2tgj3. Maintenance simulated fire closure nonspring assisted dampers operate the damper by removing the fusible link or by melting the fusible link with a heat source and allowing the blades to drop or close naturally. Fire damper surveys and maintenance checkmate fire.
When the fusible link opens, it releases the damper components to close, and they will stay closed until a new fusible link is installed. Gemini fire is part of the gemini ampm asset management and planned maintenance group of companies who offer a fire damper testing, cleaning and maintenance service, in accordance with bs. They also need to confirm that the fusible link has not been painted or. Fusible links used in this manner are actually releasing devices that are heat actuated. In general, a fire damper works when the heat from the fire causes the normal temperature of a room to rise to about 165 degrees fahrenheit. Fms guide to testing and maintaining fire dampers fire. Fusible link temperature set points of 165f, 212f, or 286f the fusible link is the mechanism that holds the damper blades in the open position. The overcenterknee lock with high torque spring fusible link assures failsafe closure during fire conditions under airflow. The system is activated when the ambient temperature increases to the point that causes the eutectic alloy in the fusible link to melt and release the preloaded fire protection device, thus restricting the spread of fire or smoke, or release pressurised gas or. Check damper label reference, damper size, fusible link option and. Code required for testing of fire, smoke, and combination dampers. The fire damper opens automatically when the fuse has been changed and the. Fusible links for fire dampers by globe technologies.
The maximum ambient temperature rating for the link that is greater than the maximum ambient exposure. There are also different lengths of the fusible links. They are designed to shut when a specified temperature or fire smoke condition is met, preventing the spread of fire and smoke. Installation, operating and maintenance instructions. Jan 31, 2015 the fusible link is one of the simplest forms of heat detection devices. When the fuse link opens, the damper blades close and prevent the spread of fire for a set amount of time. As market leader in the uk manufacture of fire, smoke and air control products, including a full range of fire dampers, volume control dampers and firesmoke dampers we have successfully fulfilled. These relatchable fire links offer many advantages over the fusible variety. Shut down your fire dampers using bimetal or signal actuation instead of fusible links. First, an operational test must be completed after the installation of the fire damper is complete. Technicians should visually inspect fire dampers in accordance with the testing schedule outlined by nfpa 80 unless the facility or local authority having.
The fire damper opens automatically when the fuse has been changed and the pneumatic air supply is reestablished. Testing and maintenance of fire dampers, especially dynamic, curtain fire dampers, can be extremely difficult. Operational testing normally involves removing or melting the fusible link and letting the damper close. If the fuse link reaches the temperature set point the fuse link will open. Mark the location of the dampers on drawings, autocad plotting available.
The system is activated when the ambient temperature increases to. Learn about fire and life safety, fire damper, fire and related trends for. Fusible links are rated by release temperature, and the load they will withstand. The model ea fusible link was specifically designed for curtain type fire dampers and underwriters laboratories listed fire doors. The fusible link is one of the simplest forms of heat detection devices. Caution avoid injury keep clear of blade travel path. Check damper label reference, damper size, fusible link option and temperature to sitespecification. Their correct installation and detailing is therefore essential to realising the fire safety performance of the whole building. On a fire damper, the locking ramp catches and locks the leading blade of the. Ruskins classic inspector consists of a panel pc, ups and preloaded software. The size of the link and the load rating in pounds for the link. The maximum ambient temperature rating for the link that is greater than the maximum ambient exposure temperature at the fire door. Fd damper installation, operating and maintenance instructions. Once the damper has proven to close, it is reopened and the fuse link.
Its available in 4 temperatures and has a maximum load of 25 pounds. As with testing dynamic fire dampers, testing a smoke damper should be done under normal airflow conditions to confirm no impediment to operation exists due to rust or damaged blades. Besides the damper test required by nfpa 105, nfpa 72 requires an annual test of the spottype smoke detector or duct detector that activates the smoke damper. This underwriters laboratories approved product is constructed from terne plated steel. As market leader in the uk manufacture of fire, smoke and air control products, including a full range of fire dampers, volume control dampers and fire smoke dampers we have successfully fulfilled this daunting brief without faltering once in our 41year history.
Control panel maintenance maintenance of actionpac control panels, including training, software upgrades and. Because it can be more easily maintained compared to a standard fire damper, a motorized fire or fire smoke damper contributes to maintenance and insurance savings. Discussion in mechanical codes started by badeeba, nov 30. This is a 165 degree fahrenheit fusible link replacement that is primarily used for fire dampers, and more popular with dayton, but also with lloyd industries, and ruskin dampers that are intended to close automatically to help prevent the spread of flames with the help of this fusible link. Round fire damper allows the fusible link to be replaced easily then the damper can be adjusted to its fullopen position. Where a fusible link is installed on a combination fire smoke damper, the fusible link shall be removed for testing the damper for full closure simulating a fire condition per the requirements and frequencies of 19. Most fire dampers have fusible links that melt at typically 165f 74c allowing gravity or a shaft spring to close the damper. The fusible link attached to the damper would then melt, causing the dampers door to close. Like all opening protectives, continued maintenance and inspection is critical and will help ensure that the doors, windows, shutters, dampers, etc. The d1250 series is approved for use in both static and dynamic hvac system designs, and is an economical and versatile performer, available with a factory fitted sleeve and choice of transition styles, suitable for use. Halton fdl fire dampers are typeapproved class a0a60 fire dampers for use in offshore, marine and navy ventilation systems.
The above pricing packages are examples based on three actionpac lns panels at a single site, with a minimum of 25 fire and smoke dampers all. Easy online ordering for the ones who get it done along with 247 customer. An alternative option for activation is via electrically. The temperature rating of the standard fusible link is 165 f. A fire damper can be defined as a device installed in ducts and air transfer opening. The system is activated when the ambient temperature increases to the point that causes the eutectic alloy, holding the fusible link together, to melt and release the preloaded fire damper, door or shutter, thus restricting the spread of fire or smoke. Fire damper surveys and maintenance fire resisting ducting together with dampers are carefully designed to prevent the spread of fire and smoke within a building. For healthcare occupancies, the damper inspectiontesting requirement has been moved by the national fire protection association nfpa from nfpa 90a to nfpa 80. The fire damper opens automatically when the fuse has been changed and the operating voltage to the motor is reestablished. Fire and smoke damper testing and inspection explained. The use of electromagnets or solenoids enables the damper to be operated remotely, even when not exposed to elevated temperatures. Fusible links are temperature sensitive release mechanisms designed to be part of a variety of fire protection systems. For example, an ordinary fusible link rated at 165 degrees f has a maximum ambient temperature rating of 100.
Maintenance simulated fire closure nonspring assisted dampers operate the damper by removing the fusible link or by melting the fusible link with a heat source and allowing the blades to drop or close. Galvanized metal sleeves in lengths of 12, 14 or 16 and metal gauges of 20 ga. Can be relatched does not need replacing pretested. When links are used in a restaurant system, their purpose is to cause the system to function and extinguish the fire. The fusible link attached to the damper would then melt, causing. In the most common design, a fusible link holds a springloaded shutter open. Some links are liquid filled glass bulbs, and some are pieces. The electro thermal link etl is a multipurpose dual responsive fusible link release device. Guide for facility managers on the testing and maintenance of fire. May 18, 2017 because it can be more easily maintained compared to a standard fire damper, a motorized fire or fire smoke damper contributes to maintenance and insurance savings.
Dayton fusible link, actual width 12, actual size height 1. All motorized dampers are dynamic rated and may be used in place of any static or dynamic curtain blade fire damper. Fusible link fire dampers are designed to operate without any command from an operatorsystem. After the damper closes, it is reopened and the fuse link replaced. Fusible link 165 degree dayton 2tgj3 for fire dampers. Control panel maintenance maintenance of actionpac control panels, including training, software upgrades and hardware maintenance. Basically when the fusible link comes into contact with high heat, the link will melt, causing the damper to close and stop the spread of fire. Basically when the fusible link comes into contact with high heat, it will melt, causing the damper to close and stop the spread of fire. Never install a fire damper without the proper ul approved fusible link in place. The fdl dampers are used to prevent the spread of fire within the ventilation ductwork. Multiple blade fire dampers are easy to test and rest, because the blades can be operated and held open via a hand lever or pair of pliers while the fuse link is replaced.
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