used 1/2 hose and quarter inch connector, micron gauge, and Schrader valve core removal tool, and evacuate below 500 micron, wait then break the vacuum by 2psig dry nitrogen gas then vacuum again. used hose for vacuum only in order to avoid contamination from other refrigerant. micron gauge is a MUST! remember we using poe and pve oil now which is hygroscopic. it grabs moisture and change it to acid through hydrolysis when long exposure to moisture and when not properly dehydrated below 500 micron. POE OIL is notorious on this. also used acid tester if suspected oil break down.
may 30 po kamin tutorial videos..lahat po about domestic refrigeration and airconditioning na alam namim..itinuturo po namin..wala po kamin itinatago...ito pong mga bagay nakaalaman namin ay base sa theory at actual practice na na incounter namin during actual troublershootin and repair....
@@racroom2006 tama naman po ang mga nasa youtube naman talaga guide and additional learning lang talaga iba na talaga pag nasa pag gagawa kana.. salamat po sa inyo more power to your channel
may schader valve naman po ang access valve..ung pito kung tawagin sa gulong ng bisiklita o nag kotse....dapat po walang leak..kaya dapat po.ne le- leakteast...for sure..lagyan nyo ng cap nut..
wala naman pong freon ngayon..freon po ay brand ng refrigerant na gumagawa ng R12 nuon....phase out na po ang R12...marami po ngayon ibat ibang brand ng refrigerant may honeywell..sufron.....at iba pa. ang tama pong tawag ay REFRIGERANT.....
the BETTER way to charge refrigerant are by way of measuring superheat and subcooling ! NO OTHER WAY BETTER THAN That. your teaching a wrong procedure. convert PSIG to saturation temperature.
