Flow Switch On Air Handler Ac Unit In Attic

The mesh fits inside a plastic housing on the inlet side of the unit to prevent dirt from collecting on the cooling coils.

Flow switch on air handler ac unit in attic. You don t want a situation where the drain pan even comes close to filling up. Adjusting the temperature in a house can be difficult. Locate the float switch and verify it is mounted in the drain pan. Window air conditioning units often have a media filter that is simply a loosely woven mesh.

This is a horizontal flow air handler installed in the attic. Also slightly visible is a float switch which offers triple protection against flooding in an attic if the primary drain were to plug up. Air is drawn through the mesh then passes through cold coils and is blown back into. Notice the drain pan under the air handling unit to catch condensation if the primary pan were to overflow.

This is the secondary condensation pan which is installed under the air handler to save a ceiling. The switch can become dislodged if accidentally bumped. When the ac system is shut off it no longer dehumidifies or pulls moisture out of the air which means it isn t going to keep dumping water into a clogged drain line which would cause it to over flow. We still install a float switch inside the drain line.

Install media filters in either direction. How to control air flow in attic ducts. Rooms facing the sun are naturally warmer than other rooms in the house and finding a balance. If you ve ever seen a home damaged by a leaky air conditioner you ll likely agree.