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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)
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoIn 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 equipment
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What does a humidistat measure?
A humidastat works with a cooling unit or humidify. It measures the amount of humidity in the air. This can then trigger the unit to turn on or off removing excess humidity from the home.
What is a fahu system?
A fahu system, short for Fresh Air Handling Unit, is an HVAC system that is designed to condition and distribute fresh air to a building. It typically includes components such as filters, cooling coils, heating coils, and fans, allowing it to control the temperature, humidity, and ventilation of the air supplied to a space. FAHU systems are commonly used in commercial buildings to maintain indoor air quality and provide comfort for occupants.
A unit by which air pressure it measured?
barometer
What unit is air velocity measured in?
Ft/min
How much electricity does a portable air conditioner use?
It varies from air conditioning unit to unit. However, the exact energy usage will be on a name plate on the air conditioner. Look for a rating in either amps or watts.
What is the difference between air handling unit and package unit?
The difference between an air handling unit and a package unit have to do with the way air is circulated or cooled. An air handling unit recycles the air from the structure back into the system. A package unit cools the air as it enters a structure through the use of intake fans.
What is differents between Air Handling unit and fresh air handling unit?
air handling units reserculate the treated air at required temperature at any serving area but fresh air unit did not reserculate fresh air , exhaust used air.
Where is the forced air fan on a central unit?
in air handling unit
What is the function of an air handling unit?
The operating principle of air handling unit is by circulating and then conditioning air flow. This is achieved by cooling, heating and ventilating the units.
What is the PPM of air handling unit?
Planned Preventative Maintenanceschedule of tasks that keep the air handling unit efficient, daily/month/yearly etc.
Is the blower motor of an air handling unit is considered an ignition source?
Yes. The blower motor of an air handling unit can be considered as an ignition source.
What is the full-form of AHU?
air handling unit
What is the use of Glycol in an Air Handling Unit?
to prevent the unit from freezing. Glycol is a an antifreeze agent
How can you find out the age of a York Air Handling Unit?
It should be on the unit or built into a serial number.
What is SA HVAC ductwork?
SA stands for supply air. Air is delivered to your space from a sort of air handling unit(fan). This is the conditioned air whether heat or cooling. This air would be returned to the air handling unit to be reconditoned through the return air(RA) duct .
What is CFM of air handling unit?
cubic feet per minute...
Were does a thermostat gets its power from on a central air conditioner?
The furnace or air handling unit in the house.
