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2. Glossary of HVAC terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_HVAC_terms

   A heat pump is a compressor that cycles hot or cold air. It is a device that is designed to move thermal energy in the opposite direction of heat flow by absorbing heat from a cold space which is released to a warmer space. heat transfer Heat transfer happens when heat moves from one area to another.

3. Fan coil unit - Wikipedia

   en.wikipedia.org/wiki/Fan_coil_unit

   A fan coil unit (FCU), also known as a Vertical Fan Coil Unit (VFCU), is a device consisting of a heat exchanger (coil) and a fan. FCUs are commonly used in HVAC systems of residential, commercial, and industrial buildings that use ducted split air conditioning or central plant cooling.

4. Fan filter unit - Wikipedia

   en.wikipedia.org/wiki/Fan_filter_unit

   A fan filter unit (FFU) is a type of motorized air filtering equipment. It is used to supply purified air to cleanrooms, laboratories, medical facilities or microenvironments by removing harmful airborne particles from recirculating air. [1] The units are installed within the system's ceiling or floor grid.

5. How do heat pumps work? What to know about installation ...

   www.aol.com/news/heat-pumps-know-installation...

   A heat pump provides cool air in the summer and heat in winter. ... a heat pump works like a refrigerator, using a refrigerant to cool hot air pulled from outdoors. ... A traditional forced-air ...

6. Heating, ventilation, and air conditioning - Wikipedia

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

   Air-side economizers also use outside air to condition spaces, but do so using fans, ducts, dampers, and control systems to introduce and distribute cool outdoor air when appropriate. An important component of natural ventilation is air change rate or air changes per hour : the hourly rate of ventilation divided by the volume of the space.

7. List of Dyson products - Wikipedia

   en.wikipedia.org/wiki/List_of_Dyson_products

   The Air Multiplier fan received the Japanese Good Design Award in 2010. [citation needed] In September 2011, Dyson announced the Dyson Hot fan heater (AM04), using Air Multiplier technology. [citation needed] Like most fan heaters, it has a thermostat to control the temperature, and can also be used as a cooling fan (without heat).