What is an AC return box?
What is an AC return box?
Return air box is a plenum for attaching return duct to return grille in ceiling or floor. Use with start collar and return filter frame to provide return air flow from house to air unit.
What is the return on an AC unit?
Return vents: What is a return vent? These vents suck the air from each room and send it back to the air conditioning or heating system. Return vents tend to be bigger than supply vents, and you won’t feel any air coming from them. When an HVAC system delivers air to a room, it increases that room’s air pressure.
Do you need cold air return for air conditioning?
Cold air return vents aren’t the most elegant feature in your home, but they exist for reason. These vents, commonly found in hallways or on ceilings, are absolutely essential to an air conditioner’s well-being. Cold air returns take in warm air from your home’s indoor spaces for use in your air conditioning system.
What happens if you block the return air?
Blocking air return vents causes your system to work harder, as there is less air flow to move the air back to the furnace. This continued strain on the HVAC system can lead to a decrease in performance and more HVAC repairs down the road.
How do I know if my return air is working?
Try this simple test when your HVAC system is running: get a piece of tissue paper and dangle it about six inches from one of the return vents. You should be able to see it being gently pulled towards the vent. Next, place it up against return vent and see if the air suction holds it in place.
Where should a return air vent be located?
They must be correctly placed and unobstructed —Return ducts are usually placed in hallways, under stairwells, or in larger open areas of your home. This placement ensures that they will be able to pull in enough air to take back to the HVAC equipment.
Where do you put cold air returns?
Cold air returns are located on interior walls in a home, typically close to the floor or low on the wall. You want to make sure that cold air return vents are not blocked or covered by furniture so that your home can get proper air circulation.
Is it OK to block cold air return?
In the heating cycle, blocked cold air returns can cause the heat exchanger inside the blower compartment to store too much heat and eventually crack. If the cracks are too large, the furnace can emit carbon monoxide into your home’s air. Such a condition normally requires a complete system replacement.
Why is my return vent not pulling air?
Blocked air duct. Blockage usually comes over time, by a buildup of dust and debris that just accumulates until it begins choking the system. To alleviate this, perform consistent home maintenance, as well as utilizing the help of a professional with professional HVAC maintenance!