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I need to replace the air filter for my ac unit. Does the air flow arrow point in toward the unit or out toward our hallway?

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Arrows point away from blower same way air flows

Posted on Jun 04, 2009

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The air flow arrow points into your room.

Posted on Jun 04, 2009

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1 Answer

Direction of flow air conditioner filter


There are quite a few possible answers to this because you did not specify what type of unit you are asking about: Central Air, Window unit, Stand-alone-upright Unit, etc.
If this is a central-air unit or a unit that uses your furnace blower to circulate air, then in most cases the filter is a square or rectangular shape and is between 1 and 4 inches thick. The "Direction" the air flows through the filter is indicated by a set of arrows printed on the thin edge of the filter - usually with the word "flow" or "Air flow". Insert the filter with the arrow(s) pointing toward the furnace/blower. Another way to determine flow direction is if the filter has a mesh or screen on one side of the filter media. In this case the screen or mesh would go toward the furnace/blower when the filter is inserted.

Sep 13, 2014 | Heating & Cooling

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How to cool big home with small air conditioner(s)


A lot of people have only one or two rooms that can take an air conditioner in the window. Often times, the air conditioner is also rated at a cooling power that would make you believe that there is no way that it can to cool the whole house/apartment. You can crank it to the max to try to cool as much as possible, but then this makes one room too cold and the others still stay too hot. You can try blasting the cool air down a hallway with a fan on maximum speed, but that only works so well. And, it's noisy, too. Well, I have two 260 sqr ft rated room air conditioners and I am cooling 2000 sqr feet of house to a comfortable 72 degrees in all rooms and it's been 95 outside all day. How to do it?

The trick is setting up your home to take advantage of laminar air flow. Set your air conditioner to say 68 degrees and start it in the middle of the morning before it feels hot outside. Put the AC deflectors pointing downward and towards the door. Put fans in the doorways pointing out of the rooms that have the AC. Point them level to the floor (not up) and put a fan to one side near the end of long hallways. Set the fans on the lowest power setting (not high). If the hallway branches out into a bigger room, put a fan in the room that is blowing across at a right angle to the entry, pointing the air flow parallel to the wall. This will circulate the cool air around the room. Keep the fans on low and pointed parallel to the floor, not up!

What you have created is a re-circulating air flow system, much like the North Atlantic Current that moderates the temperatures of Europe. You can check this by taking a tissue paper and holding it up to the top of the doorway. The air flow should be pushing the tissue away from the room without the AC and toward the room with the AC. This happens because the warmest air will be toward the ceiling and you want that warm air to make its way across the ceilings and back to the room with the AC, so that it can be cooled again. The cooled air from the AC will sink to the floor and the fans will gently push the air out of the room with the AC. It will stay low and travel along the floor in the opposite direction and into the warmer rooms. If you crank your fans up, you will create turbulent flow and that will not cool your house as efficiently as will laminar flow. Monitor the outside temperature and when it gets cooler outside by a few degrees, turn the AC to fan for about 10 minutes to eek out the last of the cooling. Then open the windows for the night to take advantage of the free cooling that nature provides. That's it! Enjoy the summer!

on May 25, 2015 | Heating & Cooling

1 Answer

I just purchased my 3M 16x25x1 air filter, i do not get what the filter should point to, toward the furnace or toward or toward the duct work


There is an arrow on the filter indicating the direction of air flow. The arrow should point toward the ductwork as that is the direction the air flows from the furnace fan.

Charlie

Feb 02, 2011 | Heating & Cooling

2 Answers

I do not get airflow to the floor from the heater / ac


The MODE button (symbol of little man leaning back with an arrow pointing toward him) controls the air flow options.
You can push through 4 options
1. Panel flow(instrument panel and rear vents) man with an arrow pointing toward him.
2. Bi-Level (Floor/instrumental panel/rear vents) man with arrow pointing toward him and one pointing to the floor.
3.Floor (floor vents) man with arrow pointing to the floor.
4.Floor/Windshield(Just that) man with windshield symbol and arrow pointing toward floor.

I hope this helps!

Dec 16, 2010 | 2004 Toyota Avalon

1 Answer

How to install the back hepa filter on canister vacuum cleaner. We are not sure which direction the air flows and therefore which way the arrows should point. Should the arrows point into the vacuum...


The arrows in this case should point out of the machine. not into the machine. This is because you want the black rubber seal to seal on the machine and force the air through the filter.

Good luck.
Mark

Nov 10, 2010 | Kenmore 25512/ 25513 Progressive Canister...

1 Answer

Where do the filters go in HEIL gas furnace Mfg# 697A


Hi, If this is a split system, look in the indoor unit to see if it is at the top, or bottom. This depends on if its a down flow or up flow unit. Sometimes they are in the hallway ceiling behind a grill that drops down. Walk through your home and look up for a grill. Look near the furnace down low also, they will put them in lots of places, but usually near the furnace. If no grill any where, it will have to go inside above or below the blower motor. You should see the opening where it lays with the arrow on the filter pointing in the direction of the air flow. If you have no grill, and there is not one in the furnace, you need to put one where the air is coming back to the unit inside to catch the dust. Please let me know if you found it and please rate me on this as I know you will be kind.
Sincerely,
Shastalaker7
A/C, & Heating Contractor

Oct 06, 2010 | Heating & Cooling

1 Answer

Air compressor regulator installatlion


The arrow denotes direction of air flow; It should point towards the air hose connection(s)

Mar 11, 2009 | Craftsman Air Tools & Compressors

1 Answer

I cleaned the filter in my Goodman furnace/ac unit and now I'm not sure as to which way it show go back in!


Should have an arrow on one side showing air flow, if the filter is under the blower the arrow should point up, if you have a filter rack in your wall the arrow should point in, in otherwords the arrow should always point in the direction of air flow

Oct 20, 2008 | Goodman Heating & Cooling

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