Xyoo 2020, American Innovation and Manufacturing Act (AIM) tau tsim los rau hauv txoj cai lij choj, uas tso cai rau 15-xyoo theem ntawm hydrofluorocarbons (HFCs) hla ntau yam kev siv-xws li HVAC.
Los txog xyoo 2025, Lub Chaw Saib Xyuas Kev Tiv Thaiv Ib Cheeb Tsam (EPA) yuav teeb tsa 750 lub ntiaj teb ua kom sov muaj peev xwm (GWP) txwv rau cua txias. Qhov no txhais tau tias R-410A, nrog GWP ntawm 2,088, yuav tsis tuaj yeem siv rau hauv cov cuab yeej tshiab.
Yog li, nws yuav hloov li cas?
GWP cov kev xaiv qis tshaj plaws tau muab cais los ntawm ASHRAE raws li cov nplaim taws me me, lossis A2L. Vim lawv cov yam ntxwv ntawm cov nplaim taws me me, A2L cov tub yees yuav xav tau kev hloov kho tshiab rau cov qauv thiab cov cai hauv tsev kom tso cai rau lawv cov kev nyab xeeb.
A2L Refrigerants yog dab tsi?
De La Portilla hais tias "A2L cov tub yees tuaj yeem yog ib lub tub yees lossis sib xyaw ntawm ntau lub tub yees hauv qhov tshwj xeeb," De La Portilla hais.
A2Ls muaj qhov ntsuas qis dua piv rau A3 cov tub yees xws li hydrocarbons, propane thiab isobutane. Lawv kuj muaj cov tshuaj lom neeg tsawg dua li B series refrigerants xws li ammonia. Qhov tseeb, A2L tub yees yog suav tias yog chav kawm thib ob ntawm cov tub yees.
Mus tom ntej, yuav muaj ob lub tub yees tseem ceeb uas siv los ua kom txias txias: R-454B thiab R-32.R32 tub yeesyog HFC tub yees, siv los hloov R410A hauv cov tub yees txias thiab cua txias. Cov tub yees no yog qhov nyiam hloov pauv rau R410A hauv cov khoom siv tshiab. R32 gas lub GWP yog 675.
Xiamen Juda yog ib lub chaw muab kev pabcuam tub yees hauv Suav teb, muab ntau yam khoom siv. Txais tos tiv tauj peb rau R32 roj hais lus!
