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2. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   A larger air handler that conditions 100% outside air, and no recirculated air, is known as a makeup air unit (MAU) or fresh air handling unit (FAHU). An air handler designed for outdoor use, typically on roofs, is known as a packaged unit ( PU ), heating and air conditioning unit ( HCU ), or rooftop unit ( RTU ).

3. Glossary of HVAC terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_HVAC_terms

   rooftop unit (RTU) A packaged unit that controls both heating and air conditioning. An air handler typically refers to a unit that provides a fan to support either heating or cooling. radiant ceiling panels Usually metal panels suspended under the ceiling, insulated from the building structure.

4. GE Dash 9-40C - Wikipedia

   en.wikipedia.org/wiki/GE_Dash_9-40C

   All units had rooftop-mounted air conditioner units which gave them their distinct "top hat" look. Norfolk Southern Railway (NS) was the sole operator of this model. [ 2 ] The company owned 125 units, numbered 8764–8888. [ 3 ]

5. We Did the Research and *These* Are the Best Air Conditioner ...

   www.aol.com/did-research-best-air-conditioner...

   Mounted Window Air Conditioner Overall, LG's window A/C is a top choice for anyone looking to cool a space of up to 350 square feet . This one comes with a remote so you won’t have to get up ...

6. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space. The control circuit in a household HVAC installation.

7. The best portable air conditioners - AOL

   www.aol.com/news/best-portable-air-conditioners...

   Here are our top picks for portable air conditioner units, which are designed for easy installation and portability. We’ve highlighted their cooling power, the size of room they’re fit for ...