1. Kupisa kunotorwa nefiriji kubva panzvimbo inotonhorera kana kwafashaira uye kwapera mu evaporator kunonzi kugona kwefiriji kwesystem yekufiriji.
2. Pamusoro pekuchinja kwemamiriro egasi-mvura, refrigerant ichavewo nekuchinja kwemamiriro egasi-mvura panguva yekutenderera mufiriji.
3.Kuisa mufiriji inzira yekuchinjana kupisa ne reverse uye haigone kuitwa yega.
6. Kunyungudika kwegasi kunogona kuitwa nekudzvanywa kana kutonhodzwa, kunyangwe gasi racho rikanyanya kupisa zvakanyanya. 7. Kushandiswa kwekupisa kwakanyanya kwemhepo mufiriji kunodzivirira madonhwe emvura kupinda mucompressor zvichikonzera hammer yemvura pane kuwedzera chiyero chefiriji.
8. Kurongeka kwekupisa kweutsi kubva pakaderera kusvika pakakwirira kweR717, R22, uye R134a pasi pemamiriro akafanana ekushanda iR134a < R22 < R717.
9. Kana kusimba kwemafuta ekuzora kwakakwira zvakanyanya, tembiricha yekubuda kwemhepo inenge yakakwira zvakanyanya, asi kana yakaderera zvakanyanya, inogona kukonzera mafuta asina kunaka pane tembiricha yekubuda kwemhepo yakawandisa.
10. Tsvina yakawandisa pamusoro pe evaporator ichaita kuti tembiricha ye evaporation ye refrigerant iderere, uye simba rekushanda kwe compressor rinogona kuwedzera.
11. Kushandiswa kwemvura inotonhorera mufiriji nguva dzose kunobatsira pakuvandudza mashandiro efiriji.
12. Pakushandisa saline semuchina wekuisa mufiriji, sezvo tembiricha yekusimba kwesaline ichisiyana zvichienderana nehuwandu, huwandu hwesaline hunosarudzwa zvichienderana netembiricha yekusimba kwemushonga iri padanho re5.°C yakaderera pane tembiricha yekubuda kwemvura mufiriji.
13. Dhigirii re vacuum rinoreva musiyano uripo pakati pekumanikidzwa kwakakwana kwemvura iri kushanda mumudziyo nekumanikidzwa kwekunze kwemhepo.
14. Chero bedzi tembiricha yepamusoro yechinhu ichi yakakwira kupfuura dova remhepo, tembiricha haizodziyi.
15. Chinangwa chikuru chekuisa mufiriji ndechekuendesa kupisa kwechinhu chinopisa zvishoma kunzvimbo inopisa zvakanyanya.
16. Chinangwa chekutonhodza mvura inotonhodza mufiriji ndechekuderedza gasi rinobuda panguva yekupwanya, nokudaro zvichiwedzera kugona kutonhodza kweyuniti.
17. Mafuta emuchina wekutonhodza anoshandiswa mucompressor yekutonhodza haagone kutsiviwa nemafuta einjini anoshandiswa pabasa rese.
18. Montreal Protocol inoti nyika dziri kusimukira dzicharega kushandisa transitional refrigerant R22 muna 2030.
19. Hunhu hweR134a hwethermodynamic hwakafanana zvikuru nehweR12. Kushandisa R134a kutsiva R12 kunoda kugadziriswa kwesystem nekuti hunhu hwemuviri hwezvinhu zviviri izvi hwakasiyana.
20. Machubhu ekupisa eammonia condenser haawanzogadzirwa nemachubhu emhangura nekuti ammonia nemhangura zvinosangana nazvo.
21. Ammonia inonwa mvura zvakanaka, asi kana tembiricha yakaderera, mvura inodonha kubva mumvura yeammonia yoita chando. Zvisinei, zvinoitika musystem hazvisi "kuvhara chando", asi zvinogona kukonzera kuvharika kwepombi.
22. Machubhu emhangura haawanzo shandiswa pamapombi emufiriji mumafiriji eammonia nekuti ammonia nemhangura zvinosangana nazvo.
23. Ichokwadi kuti Freon haikanganisi simbi, asi zhinji dzadzo dzinogona kunyungudutswa mumafuta.
24. Maatomu echlorine ari muFreon ndiwo anonyanya kukonzera kuparadzwa kwechikamu che ozone chemumhepo, kwete fluorine.
25. Maitiro chaiwo ekushanda kwecompressor yepiston anosanganisira maitiro ekukweva, kudzvanya, kuburitsa, uye kuwedzera kwevharuvhu.
26. Haasi ese masisitimu ekutonhodza anofanira kuisa madryer. Anodiwa chete kana uchishandisa mafiriji chaiwo uye chando chingavharika.
27. Kuverengwa kwe "pressure gauge" kunoratidza kumanikidzwa kwakaenzana (gauge pressure), kwete kumanikidzwa kwakazara.
28. Kufashaira kwemvura kunoenderana nekumanikidzwa. Kufashaira kwacho kwakakwira, ndiko kuwedzera kwekufashaira kwacho.
29. Refrigerant inzira inoshandiswa mufiriji isina kunanga, iyo yakasiyana nerefrigerant.
30. Kuisa mufiriji inzira yekudzikisa tembiricha yenzvimbo kana chinhu uye kuchengetedza tembiricha iyi nenzira dzekugadzira.
31. Basa remuchina wekuparadzanisa mafuta mufiriji nderekuparadzanisa mafuta ekuzora kubva mufiriji, kwete kudzivirira mvura kuti isasanganiswe mumafuta ekuzora.
32. Evaporator mudziyo wekuchinjana kupisa unotora kupisa kana firiji yapera.
33. Kana mvura kana gasi remufiriji zvikapiswa musirindiri, zvinozowedzera kumanikidzwa, zvichiita kuti zviome kukura uye zvikwanise kuputika.
34. R134a imuchina wekuchengetedza firiji. Mafuta ayo haasi mafuta emineral, asi mafuta epolyester akagadzirwa.
35. R134a chinhu chinotonhorera chisina chlorine. Hachina simba rekuparadza ozone layer yemumhepo, asi igesi rinopisa. Kana changoburitswa mumhepo, chinowedzera simba rekupisa.
36. R22 inoshandiswa zvakanyanya muma air conditioner nema coolers emumba nemabhizimisi emunharaunda. I HCFC refrigerant uye inorambidzwa munyika dziri kusimukira panosvika gore ra2030.
37. Kana ammonia ikabuda mufiriji yosangana nemhepo kusvika padanho rakati, ichava nengozi kupfura nekuputika kana yasangana nemoto.
38. Kugona kupisa kwakananga chiratidzo chekuyera mashandiro emuchina wekupisa, asi handiwo wega chiratidzo chakakosha.
39. Kukwanisa kutonhora kwecompressor hombe yekutonhodza kunopfuura 550kw.
40. Mafiriji akasanganiswa akakamurwa kuita mafiriji e-azeotropic uye mafiriji asiri e-azeotropic.
Nguva yekutumira: Kurume-04-2025
