Yongy cooling overkill!

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steve123

steve123

Member
May 26, 2019
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Arizona, United States
I went in with a friend on a new Yong Heng compressor. I filled one of my rifles with it initially a month ago but neither of us had the opportunity to use it to fill a tank until yesterday. For cooling we were just going to use distilled water and ice in a 5 gallon bucket which is what I used initially.

Backing up a bit my friend Randy installs and repairs beverage systems for bars and restaurants part time now but did that full time for half his life so he has access to equipment that most of us aren't used to seeing. As you see I guess he couldn't resist going a little crazy with keeping Yongy cool!

So underneath the bench is a commercial grade beverage chiller using Glycol which he hooked up to Yongy. If you let the system cool down it'll get down to 30 degrees or so. We just waited a few minutes and let it get down to 50 degrees and started filling our 3 tanks. The temp gauge on Yongy stayed around 40C and the chiller got down to 40F when Yongy was running.

Hopefully Yongy will last a while longer than normal keeping it cool.

Randy built the stand for the filter as well.

I was impressed that it only took 17 minutes to fill my large CF tank to 4300 psi from around 3300psi. 

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Just the basics: A YH consumes some 1800Watts when running under load.

Can we do metric for now?

Roughly 1/3 is wasted as heat in the motor and compresor, roughly 1/3 is wasted as heat in the compressed air and the final 1/3 we want is actual volume of compressed air.

So some 600Watts of energy is wasted as heat in the compressor, lets say that it all goes into the compressor and has to be cooled by the water system. PC's dont like (as in hate) heat so their cooling systems are quite good. For the YH you need the same cooling requirements ie. over 40degC is a nono. And again no PC dumps more than roughly 200Watts as residual heat. So a gamer PC x 3 cooling system is prudent. if you go that way.

I have no idea about the bevreage system you use but here in DK they are awesome and can run pretty much 100% (180 liter/min) and still keep beer under 4degC. They need to run at least 4-5 hours to build up the required ice and keep water at almost 0degC

So with that contraption you'd be better than golden mate :)

Just remember to vent every 5min and change desiccant every 30min.

Yoy might be good on cooling but the YH still needs all the attention on water build up, it can get.
 
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Very impressive cooling setup! 


mine would still get above 55c where I wound shut off and let it cool evens with ice water and 40 degree air temp. My friend’s YH seems to run longer in warmer temp but I guess it all depends on where the temp sensor is or what it is touching. I’m guess mine is touching the casing for the motor and the motor gets pretty warm. 



 
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That is the stuff for a dream cooler for the Yong Heng. 👍

Yes, these little compressors are pretty fast at filling for sure.

Like others have said if you are going for longer than 15 or 20 minute fills I would put a decent fan behind the YH so you keep the motor cool too.

Purge the moisture every five minutes.

Change out the little Yong Heng Filter every twenty minutes and set it aside to dry and use later.

Change any other filters as needed.

I would expect that little YH to last quite a bit longer with that kind of cooling.

Mine has a couple of years on it seeing temps to a max near 60C. But now that I have my cooling system on it it doesn't get over 57c.


 
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I don't know hardly a thing about the technical aspects of most things but I thought some of you would find this post interesting.

Here in a week or so Randy will be putting his AC in that window directly behind Yongy so that should keep the motor a bit more cool.

We kept purging the water but there wasn't but a few drops worth. I live in AZ so our climate is arid, maybe that's why???

We didn't change the little Yongy filter until after we filled all the tanks so I guess I better pay more attention to that aspect. The filter in the gold unit didn't have but a tiny amount of a stain on the inlet side. 

Randy buys beer by the case and has a vintage fridge full of em chilled for duty. He hangs out in his garage a lot and is quite a tinkerer, he's always fixing, improving, or creating.

I did have one beer during the filling process because watching tanks get filled isn't unlike watching and waiting for water to boil. 
 
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He's a good guy for sure.

So far we have 12 fills/4hrs on our big 4500 and 4350 psi tanks. It takes about 20 minutes to fill to 4400 psi from 3200 psi which is as high as I've filled my 4500 tank. The oil was changed after the 5th fill and no problems so far except tightening some fittings that were leaking a tiny bit.

That's $120 worth of fills not including gas if we'd filled our tanks at the dive shop so Yongy has almost replenished my side of the investment. It is so nice not having to drive all the way across town to get a fill which is minimum 45 minutes drive there and back.
 
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Nice!!! Impressive. With the gold filter I’d just change out the desiccant every 5 hours run time, especially in AZ and an air conditioned room. Nice to have unlimited air isn’t it? ;)
Click to expand...

Yeah it is!!!

We're crossing our fingers hoping that Yongy will last well, or that if it fails Walmart will honor the 4 year warranty hassle free. That'd be great if I could just bring it to my local Walmart to drop it off then get a new one shipped out to me.
 
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That is a good setup. I was considering putting a commercial chiller (my friend uses one to cool his home built laser cnc) on the next Yong heng I bought, but I ended up going with an actual dive compressor. I’ll be interested to see how long this unit lasts. I think it will last a long time, but I haven’t seen anyone else take their cooling to quite this level. It is a good sample case for everyone to watch. The cooling system would probably cost most people more to setup than the compressor though.
 
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The pressure gauge got worse and worse, then finally started leaking air out of a hole in the underneath of it. The previous fill it took a bit longer to fill my 4500 psi tank to 4400 so it was likely leaking then too.

Got a 10x1 metric bolt to plug it and back in action.

We pretty much have to investigate by feel or looking for air bubbles with diluted 409 for air leaks wherever a leak can happen every time we fill a tank. Have found 4-5 leaks in different fittings including the bleed valve on the tanks. A soapy solution in a spray bottle is your friend. Check every possible place a leak can happen is my #1 lesson so far.
 
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I had to empty two of my scba tanks (14L) and topping the second one right now as we speak (a second day). From absolute empty to 300 bars I needed about 3 hrs on a first tank.

I am running the YH like for an hour before shutting down to cool the electro motor. And no ice. But a 15L bucket under the tap and filling slowly with cold water to keep a level about 3/4th of height, the return line doesn't go back to a bucket - flashing it down in a sink. Never exceeds 44C, haven't seen 50C for many months.
 
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