R407F ifiriji yakagadzirwa naHoneywell.Musanganiswa weR32, R125 neR134a, uye ine hukama neR407C, asi ine pressure inowirirana zvirinani neR22, R404A neR507.Kunyange zvazvo R407F yaimboitirwa kutsiva R22 ikozvino yave kushandiswawo musupermarket application apo GWP yayo ye1800 inoita kuti ive yakaderera GWP kune R22 iyo ine GWP ye3900. Sezvinoratidzwa pamufananidzo, R407F yakavakirwa pane zvakafanana. mamorekuru se uye ane chimiro chakafanana kuR407C, uye ese mavharuvhu uye zvimwe zvigadzirwa zvekudzora izvo zvinotenderwa R22/R407C zvinoshandawo zvakanaka neR407F.
Compressor sarudzo:
Iyi nhungamiro yekudzoreredza kana kuisa macompressor mumidziyo mitsva ine huwandu hwedu hwazvino yakagadziridzwa nemazano ehunyanzvi ekutsiva R22 nemisanganiswa inogona kuwanikwa pamusika seR407F.
Sarudzo yevharuvhu:
Pakusarudza vharuvhu yekuwedzera ye thermostatic sarudza vharuvhu inogona kushandiswa zvese R22 neR407C, sezvo mhute yekutsikirira curve ichienderana nemavharuvhu aya zvirinani pane mavharuvhu anongoshandiswa neR407C.Kugadzirisa kupisa kwakanyanya, iwo maTXV anofanirwa kugadziridzwa ne "kuvhura" ne0.7K (pa -10C).Kugona kwe thermostatic expansion valves neR-407F kunenge kuine 10% yakakura kudarika kugona kweR-22.
Nzira yekuchinja:
Usati watanga shanduko, zvinotevera zvinhu zvinofanirwa kuwanikwa zviri nyore: ✮ Magirazi ekuchengetedza
✮ Magirovhosi
✮ Refrigerant sevhisi geji
✮ Electronic thermometer
✮ Vacuum pombi inokwanisa kudhonza 0.3 mbar
✮ Thermocouple micron geji
✮ Leak detector
✮ Refrigerant recovery unit inosanganisira refrigerant cylinder
✮ mudziyo wakakodzera wekubvisa mafuta ekuzora
✮ Chishandiso chitsva chekudzora mvura
✮ Kutsiva mvura mutsetse sefa-drier(s)
✮ Nyowani yePOE lubricant, painodiwa
✮ R407F kudzvanywa tembiricha chati
✮ R407F refrigerant
1. Usati watanga kutendeuka, hurongwa hunofanira kunyatsoongororwa neR22 refrigerant ichiri muhurongwa.Kudonha kwese kunofanirwa kugadziriswa firiji yeR407F isati yawedzerwa.
2. Zvinokurudzirwa kuti hurongwa hwekushanda kwemamiriro ezvinhu (kunyanya kusveta uye kuburitsa mhedziso dzakakwana (pressure ratio) uye suction superheat pa compressor inlet) inyorwe neR22 ichiri muhurongwa.Izvi zvinopa iyo base data yekuenzanisa kana sisitimu yadzoserwa kushanda neR407F.
3. Bvisa simba remagetsi kuhurongwa.
4. Bvisa zvakanaka iyo R22 uye Lub.Mafuta kubva kune compressor.Yera uye cherechedza huwandu hwakabviswa.
5. Tsiva mvura mutsetse sefa-drier neimwe inowirirana neR407F.
6. Tsiva vharuvhu yekuwedzera kana chinhu chesimba kumuenzaniso wakabvumirwa R407C (inongodiwa chete paunenge uchidzorera kubva kuR22 kusvika kuR407F).
7. Bvisa iyo system ku 0.3 mbar.A vacuum decay test inokurudzirwa kuvimbisa kuti system yakaoma uye inobvinza.
8. Recharge system neR407F uye POE mafuta.
9. Chaja iyo system neR407F.Kuchaja ku90% yefiriji yakabviswa muchinhu 4. R407F inofanira kusiya silinda yekuchaja muchikamu chemvura.Zvinokurudzirwa kuti girazi rekuona ribatanidzwe pakati pepombi yekuchaja uye compressor suction service valve.Izvi zvinobvumira kugadziriswa kwevhavhavhavha yekuvimbisa kuti refrigerant inopinda mu compressor mumhepo yemhepo.
10. Shandisa hurongwa.Rekodha data uye uenzanise kune data yakatorwa muchinhu 2. Tarisa uye gadzirisa TEV superheat setting kana zvichidiwa.Ita zvigadziriso kune mamwe ma controls sezvinodiwa.Yekuwedzera R407F inogona kuwedzerwa kuti iwane optimum system performance.
11. Nyatsonyora zvikamu.Tag iyo compressor nefiriji inoshandiswa (R407F) uye lubricant inoshandiswa.
Nguva yekutumira: Kubvumbi-09-2022