What is air inlet damper?
Air Inlet Damper Or Baffle The air damper, baffle or diffuser is the device that balances the air flow from the evaporator fan housing. This normally is a mechanically controlled baffle or flapper that controls the amount of cold air entering the fresh food compartment.
What is an intake damper?
The Fresh Air Damper (FAD) is a 24VAC power-open, power-close motorized air damper designed for installation in a fresh air intake duct connected to an outdoor air intake hood and a duct fan or the HVAC return plenum, to control the flow of fresh air into the home.
How do air dampers work?
HVAC dampers work by being situated closer to the mouth of the distribution pipe and will push or hold air from that point as needed. The pressure in the pipe will then redistribute the airflow to whatever zone requires regulating at that time.
What is an outside air damper?
What are outdoor air (OA) dampers and how are they used? A properly designed, installed, operated, and maintained OA damper will preclude the entry of water (rain, snow) into the AH system and will stop the flow of air into the system when it is closed.
What are air dampers?
Dampers are plate-shaped device which opens or close to regulate the amount of air that passes through the duct and vents. By adjusting the damper, you can reduce or increase the amount of air entering every room or area of your home.
Why do you need a damper for an inlet box?
Another reason to specify the inlet-box-damper combination for a given application is to efficiently guide the air into the inlet of the fan. In cases where space constraints restrict the length of the duct entering the fan, the inlet box allows for a 90-degree turn close to the fan inlet to pull the air from any direction.
What are the different types of Vane dampers?
Vane dampers (also known as Variable Inlet Vane Damper (VIV), Inlet Vane Control Damper (IVC), Radial Inlet Vane Damper, and Vortex damper among others) perform the same basic function: they pre-spin air, in the same direction as the fan rotation, before it enters the fan inlet.
What does a fresh air damper ( FAD ) do?
The Fresh Air Damper (FAD) is a 24VAC power-open, power-close motorized air damper designed for installation in a fresh air ventilation duct connected to an outdoor air intake hood and a duct fan or the HVAC return plenum, to control the flow of fresh air into the home.
When to use an inlet vane damper kelair?
Kelair’s Inlet Vane dampers have a central hub surrounded by multiple blades and are used primarily in clean air/gas environments without particulates and able to withstand temperatures up to 2000 degrees F. Inlet Vane dampers are appropriate for both volume control and fan shutoff.