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2. List of refrigerants - Wikipedia

   en.wikipedia.org/wiki/List_of_refrigerants

   The table is sortable by each of the following refrigerant properties (scroll right or reduce magnification to view more properties): Type/prefix (see legends); ASHRAE number

3. Heating, ventilation, and air conditioning - Wikipedia

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

   These codes are updated and published by the International Association of Plumbing and Mechanical Officials or the International Code Council respectively, on a 3-year code development cycle. Typically, local building permit departments are charged with enforcement of these standards on private and certain public properties.

4. Refrigerant - Wikipedia

   en.wikipedia.org/wiki/Refrigerant

   From early 2020 HFCs (including R-404A, R-134a and R-410A) are being superseded: Residential air-conditioning systems and heat pumps are increasingly using R-32. This still has a GWP of more than 600. Progressive devices use refrigerants with almost no climate impact, namely R-290 (propane), R-600a (isobutane) or R-1234yf (less flammable, in cars).

5. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [ 2 ] [ 3 ] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC) . [ 4 ]

6. Glossary of HVAC terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_HVAC_terms

   HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...

7. Portsmouth International Airport at Pease - Wikipedia

   en.wikipedia.org/wiki/Portsmouth_International...

   Portsmouth International Airport at Pease [1] [2] (IATA: PSM, ICAO: KPSM, FAA LID: PSM), formerly known as Pease International Airport, is a joint civil and military use airport located one nautical mile (2 km) west of the central business district of Portsmouth, a city in Rockingham County, New Hampshire, United States.