Most of the air handlers include a number of different pieces and parts. Some of the primary features of a typical air handler include the blower, the cooling or heating elements, chambers, dampers, and sound attenuators. Some of the units will handle recycled air, while others will handle only outside air. It depends on the make and model.
How air handlers work
Most of the time, the air handler unit will connect to the ductwork system in the building. These ducts help to distribute the conditioned air through the building, and then will return it to the air handler. In some cases, the unit will supply and return air to and from the space without needing to utilize any ductwork at all. There are also smaller units, which are usually called blower coils or fan coil units. A makeup air unit is a large air handler. This type of AHU will only use only outside air and no re-circulated air. If the air handler is for outdoor use, such as on top of a building, it is called a packaged unit or a rooftop unit.
About air handlers
An air handler, or air handling unit, sometimes referred to as an AHU, helps to condition and circular air, and it is a part of many HVAC systems. The handlers help to ensure proper circulation for the air in the building, and they often go hand in hand with regular AC units. Different types of units are for a different uses, so it is important to find the one that works for your heating and cooling needs.