The United States explicitly forbids the use of R410a and everything

in the near future, the environmental protection department ( EPA) Announced two new rules and regulations, and in some existing refrigerants shall be forbidden to use at the same time, the tightening of regulations on leakage rate limit, thus reducing emissions of HFC. Since January 1, 2021, banning a batch of high GWP value refrigerant used in some new products, including r404a, everything, r410a and R407C.

R404A and R507A is currently widely used high GWP value refrigerants, since 2021, will be banned in food retail refrigeration equipment used in the new production, since January 1, 2023, at the same time, the ban on new production equipment used in the refrigerator. In addition, the ban also includes the so-called system using mixed refrigerants R407A and R407B.

everything is also one of the extensive use of refrigerants, since January 1, 2024, will ban on new production of centrifugal and piston type water chiller. Of course also include R410A and R407C, direct filling mixture, and a lot of transition. At the same time, since January 1, 2021, everything will be banned to use in the household refrigerators and freezers.

with refrigerant ban for chiller, the air conditioning, heating and refrigeration association ( AHRI) Put forward the question. It was proposed to ban implementation date delayed to January 1, 2025, in order to have a better time for possible alternatives for safety and energy efficiency of the comprehensive test. AHRI secretary-general Setephen Yuerk pointed out: 'we are very disappointed to see the EPA did not considering the influence of the refrigerant out the industry and users. Considering the environmental impact of at the same time, should not bring economic burden to industry. We will continue to focus on the regulation effects on industry and 1. 2 million employees. '

the ban on other this year will affect ANSI/ASHRAE A3 in the category of refrigerants. The refrigerant will be banned in residential, light commercial air conditioning and heat pump, the unit of fission air conditioning system and heat pump used in the renovation project. These products include in the United States as the mixture of hydrocarbon refrigerants and R22 substitutes, such as Coolant Express 22 a, Duracool - 22日,Envirosafe 22和红色Tek 22。

hydrocarbon refrigerants and propylene R1270 R443A has banned in the new production of residential and light commercial air conditioning and heat pump, cold storage, centrifugal chiller and piston used in chiller.

of course, the new regulations also accepted the flammable refrigerant propane, applied in household refrigerators and freezers, as well as the new production of commercial ice maker.

replace everything low GWP value HFO class library for automotive air conditioning refrigerant R1234yf can also be used for new production of medium-sized passenger cars and trucks.

the EPA published a second new rules to reduce the leakage rate limit, which strengthened the refrigerant filling quantity is greater than or equal to 50 LBS of refrigeration and air conditioning equipment maintenance responsibility. For industrial process cooling, leakage rate reduced from 35% to 30%, the leakage rate of commercial refrigeration equipment from 35% down to 20%, comfortable and cooling equipment leakage rate reduced from 15% to 10%. At the same time for more than leakage rate limits of refrigeration and air conditioning equipment for quarterly/annual leak monitoring or continuous monitoring.

if the system equipment filling quantity more than 50 LBS, leakage rate more than 125% a year, production enterprise must to submit reports to the EPA.

the EPA minister Gina McCarthy said: 'the two regulations made the United States continues to be a leader in protecting public health and the environment. We continue to reduce the damage to the environment system of HFCs emissions, shows that we are responsible to the entire world, and work closely with businesses and environmental groups. '

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