R407F ndi firiji yopangidwa ndi Honeywell.Ndi kuphatikiza kwa R32, R125 ndi R134a, ndipo ikugwirizana ndi R407C, koma ili ndi kukakamiza komwe kumafanana bwino ndi R22, R404A ndi R507.Ngakhale kuti R407F poyamba idapangidwa kuti ikhale yolowa m'malo mwa R22 tsopano imagwiritsidwanso ntchito m'malo ogulitsira pomwe GWP yake ya 1800 imapangitsa kukhala GWP yotsika kuposa R22 yomwe ili ndi GWP ya 3900. mamolekyu monga ndipo ali ndi kapangidwe ofanana ndi R407C, ndi mavavu onse ndi zinthu zina zowongolera zomwe zimavomerezedwa kwa R22/R407C zimagwiranso ntchito bwino ndi R407F.
Kusankha kompresa:
Chitsogozo ichi cha kukonzanso kapena kuyika ma compressor pazida zatsopano zomwe tili nazo tsopano zasinthidwa ndi malingaliro aukadaulo osintha R22 ndi zophatikizika zomwe zingapezeke pamsika monga R407F.
Kusankha mavavu:
Posankha valavu yowonjezera ya thermostatic anasankha valavu yomwe ingagwiritsidwe ntchito pa R22 ndi R407C, popeza mpweya wothamanga wa nthunzi umafanana ndi ma valve awa kuposa ma valve omwe amagwiritsidwa ntchito ndi R407C okha.Pakutentha koyenera, ma TXV ayenera kusinthidwanso ndi "kutsegula" ndi 0.7K (pa -10C).Mphamvu za ma valve owonjezera a thermostatic ndi R-407F adzakhala pafupifupi 10% kuposa mphamvu ya R-22.
Njira yosinthira:
Musanayambe kusintha, zinthu zotsatirazi ziyenera kupezeka mosavuta: ✮ Magalasi oteteza chitetezo
✮ Magolovesi
✮ Zoyezera ntchito za refrigerant
✮ Electronic thermometer
✮ Pampu ya vacuum yomwe imatha kukoka 0.3 mbar
✮ Thermocouple micron gauge
✮ Chowunikira chotsitsa
✮ Refrigerant recovery unit kuphatikizapo silinda ya refrigerant
✮ Chidebe choyenera chochotsa mafuta
✮ Chipangizo chatsopano chowongolera madzi
✮ M'malo mwa zowumitsira zamadzimadzi
✮ Mafuta atsopano a POE, akafunika
✮ Tchati cha kutentha kwa kuthamanga kwa R407F
✮ R407F firiji
1. Asanayambe kutembenuka, dongosololi liyenera kuyesedwa mozama ndi refrigerant ya R22 ikadali mu dongosolo.Kutulutsa konse kuyenera kukonzedwa firiji ya R407F isanawonjezedwe.
2. Ndikoyenera kuti machitidwe ogwiritsira ntchito machitidwe (makamaka kuyamwa ndi kutulutsa kupanikizika kokwanira (chiŵerengero cha kupanikizika) ndi kutsekemera kwapamwamba pazitsulo za compressor) zilembedwe ndi R22 akadali mu dongosolo.Izi zipereka zoyambira zofananira pomwe makinawo ayambiranso kugwira ntchito ndi R407F.
3. Chotsani mphamvu yamagetsi ku dongosolo.
4. Chotsani bwino R22 ndi Lub.Mafuta ochokera ku compressor.Yezerani ndikuwona kuchuluka komwe kwachotsedwa.
5. Bwezerani chowumitsira mzere wamadzimadzi ndi chimodzi chomwe chimagwirizana ndi R407F.
6. Bwezerani valavu yowonjezera kapena mphamvu yamagetsi ku chitsanzo chovomerezeka cha R407C (chofunika kokha pokonzanso kuchokera ku R22 kupita ku R407F).
7. Chotsani dongosolo ku 0,3 mbar.Kuyezetsa kovunda kwa vacuum kumapangidwa kuti kutsimikizire kuti makinawo ndi owuma komanso osatayikira.
8. Yambitsaninso dongosolo ndi R407F ndi mafuta a POE.
9. Limbani dongosolo ndi R407F.Malizitsani ku 90% ya refrigerant yochotsedwa mu chinthu 4. R407F iyenera kusiya silinda yotsatsira mu gawo lamadzimadzi.Akuganiza kuti galasi loyang'ana lilumikizidwe pakati pa payipi yothamangitsira ndi valavu yoyamwa ya compressor.Izi zidzalola kusintha kwa valavu ya silinda kutsimikizira kuti firiji imalowa mu compressor mu chikhalidwe cha nthunzi.
10. Gwiritsani ntchito dongosolo.Lembani deta ndikuyerekeza ndi deta yomwe yatengedwa mu chinthu 2. Yang'anani ndikusintha TEV kutentha kwakukulu ngati kuli kofunikira.Konzani zowongolera zina ngati pakufunika.Zowonjezera R407F zitha kuwonjezeredwa kuti mupeze magwiridwe antchito abwino kwambiri.
11. Lembani bwino zigawozo.Ikani chizindikiro cha kompresa ndi firiji yogwiritsidwa ntchito (R407F) ndi mafuta ogwiritsidwa ntchito.
Nthawi yotumiza: Apr-09-2022