Attic Ac Unit Filter Location

So why put an hvac system up in the attic at all.

Attic ac unit filter location.

This air handler has a filter base under the unit. Two large pipes or ducts extend from the package unit. One is the conditioned supply air that serves the house with warm or cool air attaching to the vents in every room. You say you changed the two in the living areas suggesting that you have a dual zone system 2 floors.

Well mainly it s a way to save space. Changing the filters in the hvac unit in this case your air filter is most likely located right next to your furnace or air conditioning system air handler. All central heating and cooling systems should have an air filter but the filter can be harder to locate on some hvac units than others. Typically the unit would be found in a basement an attic or sometimes in the back of a closet.

There might be two removable front panels and you may have to lift the top one off first. The air filter might be on top below or on the side of the air handler depending on what kind of air handler you have. The filter is probably at the air intake not in the furnace blower unit up in the attic. The return air plenum on an attic or basement air conditioner blower unit will usually be a large metal enclosure about the same dimensions in width and height as the air conditioner blower unit itself.

It s generally located in your attic basement closet or crawlspace. The air filter is usually located in the return air duct or blower compartment before the return air reaches the air handler. Sometimes the air filter is behind the bottom front panel of the air handler. If you don t see a panel on or near the air handler indoor unit that has filter stamped on it then try checking these locations.

This allows the filter to clean the air coming from your house before it enters the hvac unit. Look for a filter slot right where the return plenum contacts the blower fan assembly marked as air filter slot and yellow arrow in my photo. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. The air handler is the large metal box containing the fan and fan motor.