Attic Ac Unit Diagram

It s contained in a metal box called a plenum and sits on top of your furnace.

Attic ac unit diagram.

Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. When the thermostat signals the air conditioning system to lower air temperature a whole sequence of events begins. The condenser is the outside unit of your air conditioning system. First the air handling unit kicks on drawing room air in from various parts of the house through return air ducts.

Attic hvac systems save space. This is the secondary condensation pan which is installed under the air handler to save a ceiling. This is a horizontal flow air handler installed in the attic. If you have a horizontal furnace in an attic the evaporator coil will sit on one end of the furnace instead of on top.

So why put an hvac system up in the attic at all. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. It sits outside on the ground and is typically round or square shaped. This is the piece of your air conditioning system that most people never see.

My unit is over 16 years old which is ancient in florida. Refrigerant enters the condenser as a vapor but turns. Notice the drain pan under the air handling unit to catch condensation if the primary pan were to overflow.