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2. R-410A - Wikipedia

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

   R-410A was invented and patented by Allied Signal (now Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...

3. Pressure switch - Wikipedia

   en.wikipedia.org/wiki/Pressure_switch

   Industrial pressure switches may have a calibrated scale and pointer to show the set point of the switch. A pressure switch will have a hysteresis, that is, a differential range around its setpoint, known as the switch's deadband, inside which small changes of pressure do not influence the state of the contacts. Some types allow adjustment of ...

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   From early 2020 HFCs (including R-404A, R-134a and R-410A) are being superseded: Residential air-conditioning systems and heat pumps are increasingly using R-32.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. Difluoromethane - Wikipedia

   en.wikipedia.org/wiki/Difluoromethane

   Difluoromethane is thus a relatively low-risk choice among HFC refrigerants, most of which have higher GWP and longer persistence when leaks occur. The common refrigerant R-410A is a zeotropic, 50/50-mass-percent mixture of difluoromethane and pentafluoroethane .

6. R-454B - Wikipedia

   en.wikipedia.org/wiki/R-454B

   Because of its reduced global warming potential (GWP), R-454B is intended to be an alternative to refrigerant R-410A in new equipment. [2] [3] [4] R-454B has a GWP of 466, which is 78 percent lower than R-410A's GWP of 2088. [2] R-454B is non-toxic and mildly flammable, with an ASHRAE safety classification of A2L. In the United States, it is ...

7. 'It doesn't make sense': Why millions of children have lost ...

   www.aol.com/doesnt-sense-why-millions-children...

   The little girl, who has a heart murmur and complications after a bad bout of bronchitis, had been covered by Medicaid, the government program insuring low-income and disabled Americans.

8. Hybrid heat - Wikipedia

   en.wikipedia.org/wiki/Hybrid_heat

   The heat pump transfers heat by transmitting of R-410A refrigerant. [2] Hybrid heat works with gas furnace and electric heat pump systems [3] or using a variable-speed fan. Variable-speed fans use direct-current-electronically commutated motors (ECM). [4] [5]

9. 6 Hybrid Vehicles To Consider Buying Now Before Trump Takes ...

   www.aol.com/finance/6-hybrid-vehicles-consider...

   Trump's incoming administration may reverse several Biden-era electric vehicle (EV) policies, including the $7,500 federal tax credit, potentially changing the auto industry by 2025. This could ...