Where should a fire damper be installed?
Fire dampers are required in the following locations:Ducts and air-transfer openings penetrating walls or partitions having a fire resistance rating of 2 or more hours,Ducts and air-transfer openings penetrating shaft walls having a fire resistance rating of 1 or more hours,More items...•Aug 12, 2021
What is a fire damper and where it is fitted?
Fire dampers are ducting fittings. They are usually used whenever there is a fire-resistant wall in the property. Because of the ducting vent, there will be a place through which fire and smoke can escape from one room to another. Fire dampers are what stops the flames and smoke from passing through.
Where are dampers located in a building?
Dampers are almost always within 2-6 feet of the main trunk. You may only have different style handles, the dampers might be located right off the main trunk or a few feet away, or they might even be rectangular, but you should see something like the image above, cobwebs and all.
Do fire dampers go on the supply or return?
The smoke damper on the supply side of the system should be installed downstream of its supply fan. Exceptions include systems located on the floor that they serve exclusively, as well as systems positioned on a roof that control only the floor immediately below.Oct 1, 2007
What is the difference between a fire damper and a fire smoke damper?
Whilst fire dampers function to help stop the passage of fire, smoke dampers work in a similar way to preserve the integrity of physical smoke barriers e.g. floors and walls. They can also be found within air conditioning and ventilation ductwork.Mar 2, 2019
Where do you use a fire damper?
Fire Dampers are used in air transfer openings, ducts and other places where fire rated structures (e.g. walls, floors or other fire barriers) are penetrated.Apr 27, 2021
How do you find dampers in ductwork?
0:312:31WHERE ARE THE DAMPERS ON THE FURNACE? - YouTubeYouTubeStart of suggested clipEnd of suggested clipCenter the flat spot is indicating the position of the damper. So if you imagine inside the ductMoreCenter the flat spot is indicating the position of the damper. So if you imagine inside the duct work there's a damper.
Where are the dampers located on a furnace?
Dampers are usually found where the main trunk line connects to the round supply duct. These are the pieces of duct work that supplies air to the various areas of your home. You will most likely find a wing nut bolt or a lever that you can turn to adjust the position of the damper. Turn this to a full open position.Dec 22, 2016
Where are dampers in ductwork?
The damper is a lot closer to the central unit of your HVAC system – around 4 to 6 feet from the main duct trunk. So if you close this, how different is it from closing a vent? Since it is closer to the center, it means you are closing down a part that is near the source of the air – whether it is hot or cold.Jul 5, 2019
Are fire dampers required in 30 minute walls?
Where a duct passes through a fire hazard room, but does not serve it, fire dampers are not required but the duct must have fire resistance of 30 minutes in respect to integrity and insulation.
Do fire dampers need to be monitored?
The monitoring of Fire Damper Status is essential for operators in preventing fires and gases from spreading and is particularly important in the protection of safe refuge areas during emergencies. The status of fire dampers can prove critical in the planning of emergency escape routes.
Does a 1 hour fire rated wall require a fire damper?
For 1-hour or less walls, no damper is required where ductwork is minimum 26 gauge and the ducts do no serve the corridor. Non-fire rated wall that is provided to resist the passage of smoke in specific instances.
Why do you need a fire damper?
To maintain the required fire rating to walls, partitions, barriers, or floors when ducts or other air transfer openings penetrate them, building codes and regulations require that fire dampers are installed to provide separation, in the event of a fire, between compartments restricting it spreading. Protecting people and property.
What is a smoke damper?
In line with UL555S, smoke dampers are designed to be a low leak damper that is usually motorized so it can be shut down and closed in the event of a fire and opened again if needed to control the ventilation systems and subsequent smoke from the spaces of the building.
What is a multi blade damper?
Multi-blade dampers operate in a similar way to the curtain type damper in that they utilize a fusible link to close the blades. They should be used when the size requirements mean that the drop-type curtain damper is not feasible due to the effort to reset them and operate.
What is a curtain fire damper?
A curtain-type fire damper or usually referred to as a fusible link fire damper is the most common of all fire dampers found on a project and operates via activation of a fusible link, releasing a curtain that drops under gravity aided by a spring to provide a barrier between different zones of a building . They are the most common as they are the ...
How long does a fire damper last?
Commonly fire dampers will be rated and manufactured for a time period of 90 minutes or 180 minutes [1.5hrs or 3hrs], according to the International Building Code [717.3.2.1 Fire Damper Rating] the following is required: Type of Penetration. Minimum Damper Rating [hrs]
Do fire dampers need to be maintained?
This imposes employers’ responsibility to ensure that all fire systems are maintained and in good working order. Under this guidance, and as fire dampers play a large role in stopping the spread of fire, they should be subject to a regular maintenance regime.
What is a fire damper inspection?
Fire damper inspection and testing. Inspection and periodic testing of fire dampers is an important task all building owners must undertake. Insurance companies are waking up to the importance of fire dampers, and in the event of a fire may refuse to pay out any claims if proof of regular inspection and testing cannot be provided.
Is a fire damper CE marked?
It is important to remember that even though the fire damper you purchase is CE marked, in order to perform a compliant installation it must be installed as advised by the manufacturer in their published installation documents.
What are fire dampers?
Building codes require fire dampers to maintain fire resistance ratings of walls, partitions, barriers, and floors when penetrated by ducts or other air transfer openings. Fire dampers are UL 555 classified with a fire resistance rating of 1½ or 3 hours. Fire dampers fall into two categories: 1 Dynamic rated – used with HVAC systems that remain operational during a fire emergency 2 Static rated – used with HVAC systems that shut down automatically during a fire emergency
What is the fire resistance rating of a UL 555 fire damper?
Fire dampers are UL 555 classified with a fire resistance rating of 1½ or 3 hours. Fire dampers fall into two categories: Dynamic rated – used with HVAC systems that remain operational during a fire emergency.
