Eductor part is wrong mate.. illustration should be 1 from liquid goes to eductor, 1 line from buttom of the barrel or evaporator and 1 line back to suction line.. this kind of oil management is almost the same of rtac unit. Oil from buttom barrel then back to compressor
Thank you, after I finished it and released it I realized I made a mistake on that part. What I will have to do is make a separate correction video doing a better job on that.
@@HVACTIME yvaa has some changes depends on coil either copper coil or micro channel. Copper condenser coil the drain valve control by liquid level sensor at evaporator whereas with micro channel coil they dont have liquid level sensor at evaporator. I have few yvaa unit that i maintain here in the island
Economizer opens based on comp frequency. Our YVAA now does not have check valves in the econ pipe, because our newer software allows for Economizer backflow control.
You posted this at a perfect time for me ! I just finished going over a few yvaa’s with my journeyman this past couple days. Love the videos keep it up!
Love the video! Everything was perfectly explained but I would like to add, there is not a “DRAIN VALVE” on the flash tank leaving line to evap. Now there is a shut off but not an eev device.
Thank you very sir, really fantastic explanation, could you please provide more theatrical explanation , how FD working and collect oil from the cycle.
I hope to one day understand and be proficient at troubleshooting equipment like this. This type of equipment is what i get up and get going for. I love this trade
Ran into a yciv today for the first time. I'm used to working on rack refrigeration, needless to say I was all kinds of turned around. This video made it all so clear to me now. I'll be working on it again later this week... Atleast I'm armed with some knowledge now. Thanks a ton! 🍻
I have same unit YCIV micro channel cond coil.im facing problem in drain valve not giving the exact position when I put manually put it to 100% open and 0% closed,when it run it having alarm low suction limiting and unusual sound of the compressor.i suspect the stipper motor module so I tried to swap from other unit but still problem occur.unit shutdown low suction pressure. Any advice
You know I'm glad you said something, I made a mistake on my YVAA rundown. There is not a drain valve after the flash tank. It uses the "condenser drain valve" aka the feed valve only. I will need to make that correction some how.
