What is a fire damper actuator?

Belimo safety actuators for fire dampers automatically move to their safety position in case of fire and keep dampers closed during the fire. They offer the best protection against the spread of fire and smoke through ducts.

What does a smoke damper do?

Smoke dampers have two general functions: As part of a passive smoke system where they are generally activated by smoke detectors, which would also be situated within the duct. They close upon the detection of smoke and prevent the circulation of smoke and air through the duct or ventilation opening.

What is the difference between fire damper and smoke damper?

A fire damper closes once the duct temperature reaches a high enough level to melt a fusible link. A smoke damper closes upon the detection of smoke. It is UL leakage-rated to stop smoke in its tracks, which is a main difference from fire dampers.

Where are fire smoke dampers required?

Generally, fire dampers are required where air ducts penetrate walls that are rated for 2-hours or more. They are needed in all air transfer openings (non-ducted) in rated walls, regardless of the rating. And they are required at some, but not all penetrations of rated floor assemblies and shaft enclosures.

What does the actuator do?

An actuator is a part of a device or machine that helps it to achieve physical movements by converting energy, often electrical, air, or hydraulic, into mechanical force. Simply put, it is the component in any machine that enables movement.

What is the function of actuator in HVAC?

It is the job of the AC actuator to control the opening and closing of the airflow in response to the thermostat, thus controlling air movement and allowing cool air to blow down the ducts and into the house. The AC actuator is located above or below the coil. It can be set to either single speed or variable speed.

How does a motorized smoke damper work?

Motorized Smoke damper is a device installed in an air distribution system or an air transfer opening designed to close automatically upon detection of smoke, interrupting the airflow and thereby restricting the passage of fire in the process.

Are smoke dampers powered?

Smoke dampers are operated by either a factory-installed elec- tric or a pneumatic actuator. They are controlled by smoke detectors and/or fire alarms.

Do smoke dampers need to be on emergency power?

Either emergency power should be provided or smoke dampers should be arranged for fail-safe closure upon failure of power to the actuator. Both the IBC and NFPA require that adequate access be provided to allow inspection and that maintenance of the smoke damper be provided.

What is a fire and smoke damper?

A fire damper is installed within the duct where the duct intersects the barrier. They operate using a heat sensitive device that, when activated, melts and causes the damper components to close. A smoke damper can also be installed within the duct, and is activated by a signal from a smoke detector within the damper.

How do I know if my shift actuator is bad?

When the actuator fails there is usually and awful lot of grinding noise, and the tub and agitator operate at a slow speed, if at all. In most models, you will have an F7 -E1 or E5 error code in the display.

Where are fire dampers located?

The fire dampers are located in areas of ductwork intersection of fire-rated barriers within a building. The function of a damper is to secure the integrity of the barrier. It also retains the fire rating capacity of the walls and the floor whether it is ducted or open.

How do smoke dampers work?

Fire dampers respond to heat, when the temperature reaches a set point the damper slams shut. Smoke dampers respond to the detection of smoke, and close automatically. They can also be activated remotely. They resist the passage of smoke, toxic gases and air through a fire barrier.

What is smoke damper control module?

The Damper Control Module is an innovative fire alarm interface, compatible with the Protec MX1 loop communication system, which allows control of a building’s heating, ventilation and air conditioning system smoke dampers directly from the buildings fire alarm system.

What does fire damper mean?

Here are all the possible meanings and translations of the word Fire Damper. Fire dampers are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent the spread of fire inside the ductwork through fire-resistance rated walls and floors.