What is an air handling unit?

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An air handler, or air handling unit (often abbreviated to AHU), is a device used to condition and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. Usually, an air handler is a large metal box containing a blower, heating and/or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to duct work that distributes the conditioned air through the building, and returns it to the AHU. Sometimes AHUs discharge (supply) and admit (return) air directly to and from the space served, without ductwork. Small air handlers, for local use, are called terminal units, and may only include an air filter, coil, and blower; these simple terminal units are called blower coils or fan coil unit. A larger air handler that conditions 100% outside air, and no recirculated air, is known as a makeup air unit (MAU). An air handler designed for outdoor use, typically on roofs, is known as a packaged unit (PU) or rooftop unit (RTU)
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Why is your home air handling unit tray filling with water?

Hi: because your air handling unit is obviously containing your cooling coils which act as dehumidififiers with hot moist air. The moisture these cooling coils extracts from t

Working principle of double coil air handling unit?

Air handling systems are typically used to recover heat from warm air leaving a facility and using that heat to heat incoming air. In cases where building requirements restric

How an air handling unit works?

In most commercial buildings, you need AHU's(Air Handling Units) to supply new air in, and extracting the old air out. using motor fans, filters, and heating and cooling equip

What is the difference between air handling unit and the fan coil unit?

\n\n AHU v/s FCU \n\n AHU and FCU are both included in the HVAC system. The latter is an\nacronym that describes multiple systems of heating, ventilating and air\

What is the difference between air handling unit and package unit?

The difference between an air handling unit and a package unit haveto do with the way air is circulated or cooled. An air handlingunit recycles the air from the structure back

How do you calculatethe cooling coiling of air handling unit?

If you are talking about the forced air furnace that is in the basement or attic you would need to find the amount of air flow from your air handler (CFM) For every 400 CFM yo
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What is the PPM of air handling unit?

Planned Preventative Maintenance schedule of tasks that keep the air handling unit efficient, daily/month/yearly etc.