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If you haven't been around ductless mini splits much then that's probably why you haven't heard of it. They've been using it for some time now.

I use some for ash collectors for my smokers.


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Vatterott College, Wichita Kansas.


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I worked at Sears many years ago when they went through getting iso certified. I remember it being a complete mess. Couldn't have any books/documents/etc that weren't on file at the office. No extra...

What's the drop across your water coil?

That's what I thought too when I read it. Could also be something as simple as that.

Stupid question...have you verified that your pressure transducer and line temperature sensors are reading correctly? What was the txv position during all this?

Is your superheat fluctuating too?

Do you mean check valves? I've worked on quite a few of bigger dx units like this, it's not too uncommon. What do you mean your pressures are fluctuating? Head and suction? Sh? Sc?

Check your superheat, the last time I saw this happen someone added so much oil it blew the valves out of the compressor. Ended up being the txv was starving really bad and I ended up taking a gallon...

http://hvac-talk.com/vbb/showpost.php?p=8657951

This should answer all of your questions about getting pro membership.

All very likely possibilities.

Time to grab some popcorn and a soda! :cheers:

Keep posting until you can apply for pro membership, then we can probably help.

I don't do snakes. I would have killed it hurtin'.

Burnouts aren't a "put the compressor in and walk away" type situation. They require a lot of TLC and frequent return trips to remove driers and replace them.

I'd find one of the Honeywell T775 series controllers and find the one that has the features that you need.

Compressors don't "die" they are all "murdered". Sounds like you need to find the root cause and fix that. If you have a 3 phase piece of equipment without phase monitoring, you're playing with fire....

Drier would be my guess too. What was the indoor temperature with that 89 degree suction?

I was thinking the same. Are you sure one of your condenser fans isn't shutting down on thermal overload?

Restriction + overcharged gets my vote.

Have you thought about getting into building automation/controls since you already are familiar with computers? As for what would be best, someone from down that way would have to answer that for you.

That's a scary thought that it could happen to any of us. Glad you're ok, you can fix/replace a recovery machine....

LOL!!

I think we need an update....

Good luck then. I'd start making a check list of things you might want answers to if you get a chance to have an interview.

It's a really expensive habit/hobby, but I do love it too.

Interviewing at a place where you don't know anyone or anything about the place can be really tough. Even in my most recent interview with the school, I feel that a lot of things were misrepresented...

Awesome smoker, I'm jealous!

Now that's funny bruh!

You're on the right track. Keep posting and make sure you get the pro membership. Also, don't let a scroll pump down into a vacuum, it WILL die.

Same for me.

^^^
Stay safe buddy!

Set the smoke detector off?

I'll take a stab at it....txv valves are rated for a range of tonnage so it'll throttle to match the tonnage of compressors that you have running.

Is that what you're after?

I have such a hard time understanding why people consistently screw up traps???? It's one of the least complex things we do.

2 gallon shop vac and lots of trips.

Agreed too. Glad no one for hurt also, but luckily it was nitrogen and not refrigerant.

You can keep telling yourself that but I think once you realize how much there is out there, there's no way.

If you focus on one niche or one thing at a time, it'll serve you far better than...

Ya that's what I was thinking. At one of my buildings we have 4" mains for only 65 heat pumps.

That's what I read on espn also.

Cause they can...it's the only thing that makes sense right?

^^^^^

Is this a unit with a receiver and/or hot gas reheat?

Does this system have some type of relief valve on it by chance?

I wouldn't hold your breath.

That might have been me...I can take a picture of it when I get home.

Typical Aaon non-sense. Sounds like you guys have told him all he needs to know from my experience with them too.

Make up a glass of ice water and let it sit for a while, then you should be able to check how far off your thermocouples are.

I have a fieldpiece st4 that I retired a long time ago that I found...

I'm guessing your fitting cj is rated for a whole lot more pressure too.