R32 cov tshuaj muaj pes tsawg leeg yog difluoromethane (CH₂F₂). Nws muaj toxicity tsawg heev, yog me ntsis flammable, thiab muaj kev nyab xeeb ntsuas ntawm A2L. R32 muaj peev xwm tawg tau, nrog rau kev txwv tsis pub tawg los ntawm 14.4% mus rau 29.3%. Yog li ntawd, nws tsis tshua muaj flammability yuav tsum tau hais nyob rau hauv nws daim ntawv thov nyob rau hauv tsev cua txias.
R32 lub tub yees ua haujlwm zoo ib yam li R410a. Cov yam ntxwv tseem ceeb:
1. Kev ua tau zoo ib puag ncig: Zero ozone depletion peev xwm (ODP=0), nrog lub ntiaj teb ua kom sov muaj peev xwm (GWP) qis dua R410A.
2. Kev siv hluav taws xob siab: Cov thermal conductivity zoo heev, uas ua rau cov cua sov hloov tau zoo dua thiab txhim kho cua txias zog efficiency.
3. Tsawg Them Nqi: Muaj peev xwm ua kom txias txias, xav tau kwv yees li 12% tsawg dua li R410A.
4. Chav Kawm Kev Nyab Xeeb: Tsawg toxicity (A1), tab sis nrog me me flammability (A2L).
R32, raws li hom tshiab ntawm ib puag ncig tus phooj ywg refrigerant, tam sim no yog ib qho ntawm cov qauv hloov loj. Nws qhov kev thov raws li cov khoom hloov pauv hauv lub sijhawm luv yog pom tseeb. Txawm li cas los xij, vim nws muaj kev phom sij thiab muaj xwm txheej tsis tu ncua, cov tuam txhab lag luam yuav tsum tsom ntau ntxiv rau kev ntxiv dag zog rau kev ua haujlwm kev nyab xeeb kev cob qhia thiab kev tshaj tawm rau pej xeem. Tau kawg, R32 yuav tuav ib txoj hauj lwm kom txog thaum tsim ib qho tshiab refrigerant.
