Feem ntau cov tub yees siv hauv tub yees muaj xws li Freon, ammonia, carbon dioxide, R134a, R600a, R290, R404A, thiab lwm yam. Txhua lub tub yees muaj nws tus yam ntxwv tshwj xeeb thiab cov xwm txheej siv tau.
Freon : Qhov no yog lub sijhawm ntxov tshaj plaws ntawm cov tub yees nrog cov tub yees zoo, tab sis nws tau maj mam tshem tawm vim nws cuam tshuam rau cov txheej txheem ozone.
Ammonia : Ammonia yog ib yam khoom siv tub yees nrog lub tub yees zoo thiab kev tiv thaiv ib puag ncig, tab sis vim nws cov tshuaj lom, nws feem ntau siv tsawg dua hauv tsev tub yees.
Cov pa roj carbon dioxide: Raws li cov tub yees ntuj, nws muaj kev ua haujlwm zoo ib puag ncig thiab yuav tsis ua rau muaj kev puas tsuaj rau cov huab cua, tab sis nws cov tub yees ua haujlwm tau qis thiab xav tau kev ua haujlwm siab dua.
R134a (Tetrafluoroethane): Qhov no yog siv dav hauv nruab nrab thiab qis kub tub yees nrog kev ua tau zoo thiab kev nyab xeeb. Nws yog qhov hloov pauv rau R12.
R600a (Isobutane): Qhov no yog ib puag ncig tus phooj ywg refrigerant los ntawm cov khoom xyaw ntuj, nrog rau cov tub yees zoo thiab kev nyab xeeb, thiab siv dav hauv cov tub yees.
R290 (Propane): Nws yog hydrocarbon refrigerant nrog kev ua haujlwm zoo ib puag ncig, tab sis muaj kev nyab xeeb siab thiab feem ntau yog siv rau hauv cov khoom siv tub yees txias nrog cov kua me me.
R404A: Qhov no yog cov tub yees sib xyaw uas feem ntau siv hauv cov khoom siv tub yees ua lag luam nrog cov tub yees zoo thiab kev ua haujlwm ib puag ncig.
Cov tub yees no muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Kev xaiv cov tub yees tsim nyog yuav tsum tau txiav txim siab raws li qhov tshwj xeeb daim ntawv thov scenario thiab kev tiv thaiv ib puag ncig. Nrog rau kev txhim kho ntawm ib puag ncig kev paub, ib puag ncig tus phooj ywg refrigerants yuav dhau los ua lub hauv paus rau yav tom ntej.