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2. List of New York City Subway R-type contracts - Wikipedia

   en.wikipedia.org/wiki/List_of_New_York_City...

   Crane cars (3 tons) C260–C271 Thrall Car Manufacturing Company 1991 In service: R114: 20 flat cars: Cancelled: R115: Prototype air conditioning unit designing & testing: Cancelled: R116 Hopper cars H310–H319 Thrall Car Manufacturing Company 1989 In service: R117: 10 diesel-electric locomotives: Cancelled (design stage for R120) R118: 3 ...

3. Vapor-compression refrigeration - Wikipedia

   en.wikipedia.org/wiki/Vapor-compression...

   A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.

4. Chlorodifluoromethane - Wikipedia

   en.wikipedia.org/wiki/Chlorodifluoromethane

   R-458A is for use in air conditioning and refrigeration applications, without capacity or efficiency loss. Works with MO, AB, and POE oils. [13] R-32 or HFC-32 (difluoromethane) is for use in air conditioning and refrigeration applications. It has zero ozone depletion potential (ODP) [2] and a global warming potential (GWP) index 675 times that ...

5. 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

6. R-407C - Wikipedia

   en.wikipedia.org/wiki/R-407C

   Replacement for R22: Often used as a direct substitute for R22 in many existing systems, facilitating upgrades with minimal system modifications. High Efficiency: Provides effective cooling with good energy efficiency. Environmentally Friendly: Does not deplete the ozone layer, making it a more sustainable option than its predecessors.

7. R-410A - Wikipedia

   en.wikipedia.org/wiki/R-410A

   R-410A is a refrigerant used in air conditioning and heat pump applications. It is a zeotropic but near-azeotropic mixture of difluoromethane (CH 2 F 2, called R-32) and pentafluoroethane (CHF 2 CF 3, called R-125). R-410A is sold under the trademarked names AZ-20, EcoFluor R410, Forane 410A, Genetron R410A, Puron, and Suva 410A.